CN106322024A - Feeding sealing device for wet ball mill, sealing system and mounting method of sealing system - Google Patents

Abstract

The invention discloses a feeding sealing device for a wet ball mill, a sealing system and a mounting method of the sealing system. The device axially and sequentially comprises a jetting seat, a sealing gasket, a jetting body and a labyrinth pressure flange, wherein the jetting seat is fixedly connected onto a feeding pipe; the jetting body is connected with the jetting seat through a connecting piece; an annular cavity formed between the jetting body and the jetting seat is a current collecting chamber; the sealing gasket is connected between the jetting seat and the jetting body; the labyrinth pressure flange is sheathed at the end part of the jetting body; and at least two axial O-shaped sealing rings are connected between the labyrinth pressure flange and the jetting body. According to the feeding sealing device and the sealing system disclosed by the invention, a jet type noncontact sealing scheme adopted for a slurry part can realize a better mill head sealing effect; by use of triple sealing, zero leakage of the sealing device for a wet ball mill head is effectively guaranteed, and no leakage of a feeding pipe part of the mill head is realized; meanwhile, by means of the scheme, an original system is simply reformed with relatively-low expenses; healthy operation of equipment in a factory and the requirement of safe and civilized production can be met; and the scheme is easily popularized and applied to the wet ball mill.

Description

A kind of feeding sealing device of wet type ball mill, sealing system and installation method thereof

Technical field

The present invention relates to wet ball-milling machine equipment, particularly a kind of sealing device and installation method thereof.

Background technology

In order in preventing grinding machine, serosity spills between feed pipe and screw-casing, gasket seal typically taked by wet ball mill Seal, as shown in Figure 1: this sealing device is connected between feed pipe 14 and screw-casing 15, shown in Figure 2, including sealing Pad 16, sealing gasket differential 18 and sealing gasket fastening bolt 17, belong to axial seal, and the principle of this sealing is by screwing hermetic pad Fastening bolt 17 promotes sealing gasket differential 18 and then gasket seal 16 is pressed on sealing on screw-casing 15, after compression securely Pad 16 is filled in the purpose that screw-casing endoporus and feed pipe space reach to seal.

Being mainly characterized by of this sealing: be suitable for static seal, as movable sealing, does not require nothing more than and O-ring week fills gap Uniformly (i.e. gap uniformity between feed pipe and screw-casing endoporus), and the screw-casing endoporus rotated and feed pipe outer wall sealing gasket The surface smoothness of junction, deviation from circular from and concentricity accuracy class require the highest, and such guarantee is relative Preferably sealing effectiveness.And specific to on-site actual situations, first analyze from mill feeding pipe: general wet ball mill feed Pipe belongs to cast steel moulding by casting, and outer surface is not machined out processing, and surface smoothness is poor, when causing wet ball mill to operate, Not only wear and tear during the sealing gasket contact rougher feed pipe of outer surface when screw-casing rotates aggravation；Simultaneously because tube wall is concavo-convex not Flat, be ceaselessly dropped on feed pipe outer wall forms " rotated flowing liquid " containing stereoplasm liquid with the operating of screw-casing, along charging tube wall Recess " climb into " sealing gasket and feed pipe outer wall gap, the liquid containing stereoplasm climbed into exacerbates the mill of feed pipe outer wall and sealing gasket Damaging, the gap that abrasion produces causes this position serosity leakage increasing, can repeat again said process after changing sealing gasket, and Along with the increasing of feed pipe wear extent, sealing gasket cannot fill up the gap of feed pipe and screw-casing, wet ball mill bistrique spillage The frequency more and more higher, not only affect enterprise security and carry out production strictly in line with rules and regulations level, the serosity meeting more seriously leaked from this position The grease chamber of bistrique bearing shell is penetrated in operating along with grinding machine, and bistrique axle journal and bearing shell face and damage the substantial equipment risk stopped transport.

In order to eliminate wet ball mill inlet spillage fault, raising business equipment health and safe and civilized production level, one Mill entrance spillage position part is transformed, now with the solution of the most several transformations by a little enterprises:

The first, axial packing seal mode is used: according to mill feeding pipe size design, manufacture filler chamber, with water pump, agitator This filler chamber, filler and differential unlike kind equipment filler chamber are installed on the wet grinding screw-casing (or taper sheath) of rotation, Anhydrous seal ring in filler chamber.Bistrique seals and relies on differential compression to be filled in the filler of feed pipe and filler chamber and reach axial seal Purpose.

The second, radially mechanical seal mode is taked: according to mill feeding pipe size, design, manufacture mechanical seal, pass through machine The face pressure that tool sealing dynamic and static ring sets reaches the purpose sealed.

3rd, drainage way is taked: in wet ball mill feed pipe and the spray of screw-casing junction flushing water installed above Head, then installs water receiving bucket below bistrique, is poured in water receiving bucket by the serosity that wet ball mill feed mouth leaks, pass through water receiving Arrange outside drainage tube below bucket.

Due to some odjective causes, use first method can only cycle of proper extension bistrique spillage, main cause is This kind of sealing device uses similar sealing means, the i.e. method by extruding elimination sound work surface gap to reach to sealing gasket Avoid the purpose that serosity leaks, and the crush seal being used for sound work surface needs the subject matter solved to be to have enough lubrications Liquid cooling fluid (general employing clear water is as metalworking coolant for filler) is taken away the heat of friction generation and reduces sound The abrasion of work surface, but owing to this filler chamber is installed on the grinding mill barrel of rotation unlike the filler chamber being applied on water pump On, it is impossible between filler and feed pipe, access cooling lubricated water, so that this dry friction is inevitably accelerated filler and entered The abrasion of material pipe outer wall, the sound gathering throat that abrasion produces can be become more overstriking by the liquid filling containing stereoplasm in grinding mill barrel Rough, coefficient of friction can more accelerate the abrasion of work surface after increasing；Secondly, for gyration, the concentricity of sound part is to protect One of card contact site essential condition reducing abrasion, and for wet ball mill, feed pipe is operated in material and constantly impacts Working environment in, its unordered vibration causes feed pipe ceaselessly to deviate serpentine pipe center, between feed pipe outer wall and filler The abrasion produced because of bias is also the main cause that the method cannot solve bistrique spillage.Therefore, the method energy proper extension mill The main cause in head spillage cycle is that the method by increasing filler chamber's thickness, and then can increase the contact surface of sound work surface Long-pending, play caused by the sealing function of " multiple sealing gasket ".

And second method, from the point of view of using effect, although improvement expenses is relatively big, but it is unable to reach expection using effect, First main cause is to install after grinding machine stationary seat needs location, scene, and dynamic and static ring faces parallel error is difficult to control at relatively low water Flat；Secondly because mill feeding pipe is operated in the working environment that material constantly impacts, its unordered vibration causes feed pipe not Deviate serpentine pipe center with stopping, namely dynamic and static ring end face be operated in the subtended angle of bottom subtended angle-Guan Bi-more disorderly, be closed again ... Environment in, dynamic and static ring occurs that the just explanation mechanical seal of lower subtended angle was lost efficacy, and the most this unordered Guan Bi vibration can cause sound Ring is damaged；Mechanical seal requirement axial movement value typically requires within 0.3mm again, and for wet ball mill, in order to mend Repay the axial movement value controlled owing to temperature impact makes grinding mill barrel length change and be far longer than 0.3mm, therefore machine envelope Dynamic and static ring face pressure amplitude of variation is relatively big, dynamic and static ring continuous firing face pressure relatively big-without in the environment of face pressure, also During i.e. dynamic and static ring end face is operated in the state of pressurization abrasion-seal failure, the most just it is unable to reach intended sealing effectiveness；Add This mechanical seal diameter is typically greater than 400mm, causes improvement expenses higher.

The third drainage method, is practically without fundamentally solving the leakage sealed problem of bistrique feed end, and is only The serosity leaked out is dredged drain, this defect is not thoroughly effected a radical cure.

Summary of the invention

It is an object of the invention to provide a kind of feeding sealing device of wet type ball mill, sealing system and installation method thereof, Conventional sealing apparatus sealing effectiveness is poor, service life is short and has the technical problem of abrasion to machine in solution.

For achieving the above object, the present invention adopts the following technical scheme that

A kind of feeding sealing device of wet type ball mill, axially on include jet seat, sealing gasket, jet body and labyrinth differential successively； Described jet seat is fixedly connected on feed pipe；Described jet body is connected with jet seat by connector and is formed between the two Toroidal cavity be collecting chamber；Described sealing gasket is connected between jet seat and jet body；Described labyrinth differential is socketed in jet End and the connection between the two of body have at least twice axial O RunddichtringO.

Described labyrinth differential is ring plate, on its inner ring along its axially on have annular groove, in each annular groove The corresponding the most axially O RunddichtringO that connects, and both matched in clearance.

Described jet seat is integrated machine tooling member, include annular slab and be vertically positioned at that annular slab is outer peripheral to be arranged circumferentially Flange connector, the top of described flange connector is concordant with annular slab upper surface, bottom exceedes the lower surface of annular slab, connects convex On edge, uniform intervals hoop has jet seat flange hole；Jet seat inlet opening is had on described annular slab.

At least two, described jet seat inlet opening, be uniformly arranged on the upper of annular slab, described inlet opening be screwed hole and Threaded with admitting pipe joint.

Described jet body includes annular slab, is vertically positioned at the outer peripheral connection chimb being arranged circumferentially of annular slab and vertical position In the annular collar of annular slab inward flange, described connection chimb and annular collar lay respectively at the both sides of annular slab, wherein connect It is concordant with the lower surface of annular slab that the top of chimb exceedes the upper surface of annular slab, end, the top of annular collar and annular slab The lower surface that upper surface is concordant, end exceedes annular slab；On described connection chimb, uniform intervals hoop has jet body flange Hole, described jet body flange hole and jet seat flange hole are correspondingly arranged and are connected by connector.

It is one group of company of being oppositely arranged on that described flange connector also has two jet seat pin holes and each two jet seat pin hole Connect the offside of flange, and each jet seat pin hole is between two jet seat flange holes；Also have on described connection chimb and penetrate Fluid pin-and-hole, described jet body pin-and-hole is correspondingly arranged with jet seat pin hole, and both are connected by bearing pin.

Described axial O RunddichtringO is tightly sleeved in the annular collar end of jet body, corresponding differential position, labyrinth.

A kind of sealing system applying described feeding sealing device of wet type ball mill, including screw-casing, feed pipe and company Being connected on sealing device between the two, wherein jet seat is fixedly connected on the outer wall of feed pipe；The annular neck of described jet body The end of circle is positioned in screw-casing endoporus and is less than the inner surface of screw-casing；Described labyrinth differential is positioned at the appearance of screw-casing Face and both connected by securing member；The annular slab of described jet seat, the flange connector of jet seat, the connection chimb of jet body, Collecting chamber is formed between the annular slab of jet body and the outer wall of feed pipe.

Connect between described labyrinth differential and the outer surface of screw-casing and have radial seal pad.

The installation method of a kind of sealing system as mentioned, specifically comprises the following steps that

Step one, according to screw-casing axial displacement during mill working load operation, jet seat is axially positioned and with enter The outer wall of material pipe is fixing to be connected.

Step 2, imbeds axial O RunddichtringO in the annular groove of labyrinth differential.

Step 3, is arranged on the labyrinth differential being provided with axial O RunddichtringO on jet body.

Step 4, after installing sealing gasket additional between jet body and jet seat；The jet body that will be equipped with labyrinth differential is connected to On jet seat.

Step 5, installs feed pipe.

Step 6, be pushed axially labyrinth differential and radially O RunddichtringO be adjacent to screw-casing end face, tight by securing member Gu.

Step 7, connects and seals water lines, accesses the water inlet on jet seat, two-way water supply line by water inlet connection On should install valve respectively additional, so far, complete the installation of sealing device, start to come into operation.

Compared with prior art the invention have the characteristics that and beneficial effect:

With wet milk slurry liquid contacts region design jet body and jet seat, both coordinate, and are formed between feed pipe and screw-casing Collecting chamber and injection runner, the serosity utilizing the high-velocity flow of injection runner outgoing to be dropped on feed pipe outer wall by grinding machine pours Inside grinding machine, utilize the vacuum that at injection runner, high-velocity flow produces, by screw-casing endoporus and jet column external parietal suture gap simultaneously Between fluid suck in jet area, flow in grinding mill barrel together with jet.And devise labyrinth in the outer face of screw-casing The fluid not being completely introduced into vacuum area can be sealed by differential, radial seal pad and axial O RunddichtringO, and triple seal has Ensure that to effect the zero leakage of wet ball mill bistrique sealing device, it is achieved bistrique feed pipe position No leakage, it is ensured that wet type The key health steady running of ball mill and the safe and civilized production level of factory.

The present invention compares with existing wet ball mill bistrique Sealing Technology, has the following advantages:

1, make full use of the feature that can introduce current inside wet ball mill, introduce after the watermeter scale of bistrique water material proportioning Fluidic seal water, designs bistrique sealing device on the basis of not destroying former grinder system water material balance.

2, utilize the vacuum produced near injection runner high-velocity flow and current that bistrique serosity is carried out non-contacting seal, Equipment part is without abrasion, and service life is long.

3, make full use of the feature that feed pipe is vibrated by material impact, effectively eliminate between jet body and feed pipe gap Fouling and clogging, the possibility of foreign matters from being blocked.

4, the labyrinth differential designed and axial O RunddichtringO, ensure that to greatest extent and be introduced in jet flow negative pressure region Current along jet gun outer wall leak.

To sum up, the jetting type non-contact seals scheme that serum portion is taked by the present invention can play preferable bistrique and seal effect Really, simultaneously the program transform on original system simply, improvement expenses relatively low, can meet shop equipment health operating and security civilization Production requirement, it is easy to popularization and application on ball mill by wet process.

Accompanying drawing explanation

The present invention will be further described in detail below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of existing sealing device.

Fig. 2 is the partial enlargement structural representation in the I portion of Fig. 1.

Fig. 3 is the structural representation of the present invention.

Fig. 4 is the partial enlargement structural representation in the II portion of Fig. 3.

Fig. 5 is the structural representation of the jet seat of the present invention.

Fig. 6 is the cross-sectional view of the jet seat of the present invention.

Fig. 7 is the structural representation of the jet body of the present invention.

Fig. 8 is the cross-sectional view of the jet body of the present invention.

Fig. 9 is the structural representation of labyrinth of the present invention differential.

Figure 10 is the cross-sectional view of labyrinth of the present invention differential.

Figure 11 is the partial enlargement structural representation in III portion in Figure 10.

Reference: 1-screw-casing, 2-labyrinth differential, 3-radial seal pad, the axial O RunddichtringO of 4-first, 5-second Axially O RunddichtringO, 6-jet body, 61-jet body flange hole, 62-jet body pin-and-hole, 7-securing member, 8-jet seat, 81-penetrate Stream seat flange hole, 82-jet seat pin hole, 83-jet seat inlet opening, 9-connector, 10-admitting pipe joint, 11-feed pipe, 12- Collecting chamber, 13-sealing gasket, 14-feed pipe, 15-screw-casing, 16-gasket seal, 17-sealing gasket fastening bolt, 18-sealing gasket Differential.

Detailed description of the invention

Embodiment is shown in Figure 1, this wet ball mill bistrique jet flow sealing device, including jet seat 8, jet body 6, Labyrinth differential 2, water system and the sealing member such as sealing ring, sealing gasket.

Shown in Figure 3, described jet seat 8 is integrated machine tooling member, is socketed in the outside of feed pipe 11, sees Fig. 6 Shown in, described jet seat 8 includes annular slab and is vertically positioned at the outer peripheral flange connector being arranged circumferentially of annular slab, described connection The top of flange is concordant with annular slab upper surface, bottom exceedes the lower surface of annular slab, shown in Figure 5, on flange connector all Even interval hoop has jet seat flange hole 81；Also having jet seat pin hole 82 on flange connector, described jet seat pin hole 82 has Two, be oppositely arranged on the offside of flange connector, and each jet seat pin hole 82 is between two jet seat flange holes 81；Institute Stating and have jet seat inlet opening 83 on annular slab, described jet seat inlet opening 83 has two or more, is uniformly arranged on annular slab Reference circle on, described inlet opening is screwed hole, threadeds with admitting pipe joint 10, and by admitting pipe joint 10 and entering Water pipe connects.

Shown in Figure 3, described jet body 6 is integrated machine tooling member, is socketed in outside and the jet of feed pipe 11 Seat 8 is connected by connector 9, and wherein connector 9 is flange bolt, shown in Figure 8, and described jet body 6 includes annular Plate, be vertically positioned at annular slab outer peripheral be arranged circumferentially connect chimb and be vertically positioned at the annular collar of annular slab inward flange, Described connection chimb and annular collar lay respectively at the both sides of annular slab, and the top wherein connecting chimb exceedes the upper table of annular slab Face, end are concordant with the lower surface of annular slab, and the top of annular collar is concordant with the upper surface of annular slab, end exceedes annular slab Lower surface, the end of described annular collar is positioned at screw-casing 1 hole site and less than the inner surface of screw-casing 1, annular neck The end of circle is also socketed with labyrinth differential 2.

Described labyrinth differential 2 be positioned at screw-casing outer surface side, both connected by securing member 7, described securing member 7 is Fastening bolt, shown in Figure 9, on labyrinth differential 2, hoop has the circle connecting hole through securing member 7, sees Figure 10, Figure 11 Shown in, along its most parallel axial bipassage ring connected in star that has on the inner ring of described labyrinth differential 2, corresponding in each annular groove Connect together axially O RunddichtringO, in this example, parallel on the inner ring of labyrinth differential 2 be connected to the first axial O RunddichtringO 4 He Second axial O RunddichtringO 5, wherein the first axial O RunddichtringO 4 and the second axial O RunddichtringO all with annular groove gap Coordinate, therefore multiple tracks axial O RunddichtringO operationally forms labyrinth seal, be effectively prevented fluid along jet body 6 outer wall with Screw-casing 1 endoporus slot leakage, is also associated with sealing gasket 3 between labyrinth differential 2 and screw-casing simultaneously, can be effectively prevented stream Body leaks along screw-casing outer surface.

Shown in Figure 7, connect uniform intervals hoop on chimb and have jet body flange hole 61, described jet body flange hole 61 and jet seat flange hole 81 be correspondingly arranged and pass through connector 9 and connect；Connect and also have jet body pin-and-hole 62 on chimb, described Jet body pin-and-hole 62 is correspondingly arranged with jet seat pin hole 82, and both are connected by bearing pin, plays the effect of location, the afterwards company of dependence Fitting 9 is by jet seat 8 and the fixing connection of jet body 6.

Shown in Figure 3, the flange connector of described jet seat 8 and the connection chimb of jet body 6 dock and connect between the two It is connected to sealing gasket 13, after the connection chimb docking of the flange connector of jet seat 8 and jet body 6, the annular slab of jet seat 8, penetrates The stream flange connector of seat 8, the connection chimb of jet body 6, formation collection between the annular slab of jet body 6 and the outer wall of feed pipe 11 Flow chamber 12, the Main Function of collecting chamber 12 is to ensure that stablizing of jet body rate of discharge and pressure.

Shown in Figure 4, the operation principle of the present invention is: fluidic seal water enters collecting chamber 12, jet by water inlet pipe Sealing water, after collecting chamber 12 voltage stabilizing, enters the injection runner that the annular collar of jet body 6 is formed with feed pipe 11, sees arrow Direction, sprays at screw-casing 1 endoporus, and fluidic seal water is dropped in when being operated by wet ball mill on feed pipe 11 outer wall The liquid containing stereoplasm rinse in grinding mill barrel；Simultaneously because the high-velocity flow in jet body 6 exit can produce near current side Negative pressure, makes to splash down landing gap m between the inwall c and jet body 6 outer wall of screw-casing 1 endoporus along the inner surface k of screw-casing 1 Neighbouring fluid is inhaled in jet area, flows in grinding mill barrel together with jet, is not aspirated by negative pressure region for eliminating Clean fluid leaks along the outer wall of jet body 6 and the gap m of the inwall c of screw-casing endoporus, and the outer surface at screw-casing 1 is installed Labyrinth differential 2, the endoporus of this labyrinth differential 2 arranges multiple tracks annular groove and connects axial O RunddichtringO for correspondence, due to ring Connected in star and axial O RunddichtringO are designed as matched in clearance, and therefore annular groove restraints the axial O type at jet body 6 outer wall with tight Sealing ring operationally, crisscross motion between axial O RunddichtringO, formed labyrinth seal, be effectively prevented fluid along jet body 6 Outer wall leaks with the gap m of screw-casing endoporus.

Jet seat of the present invention, the method for designing of jet body, specifically comprise the following steps that

Step one, checks the circularity of the external diameter of feed pipe 11 horizontal component, as feed pipe 11 deviation from circular from exceedes 0.1mm, need to be machined out reaching this technical specification to feed pipe horizontal component external diameter.Then according to the external diameter processing of feed pipe Make jet seat 8 and jet body 6, the several technical problems that should be noted that during manufacture:

The first, for ensureing jet seat, jet body installation strength, the thickness of annular slab is not less than 8mm.

The second, jet seat, jet body flange hole need to join rig processing.

3rd, jet seat, the pin-and-hole of jet body need to match and scrape pin, and preferably be arranged symmetrically with.

4th, the internal diameter (feed pipe external diameter E) of jet seat annular slab is processed by matched in clearance tolerance (H).

5th, the internal diameter D of jet body looping pit circle need to be more than 0.5mm～0.8mm of feed pipe external diameter E.

6th, the external diameter C of jet body looping pit circle need to be less than 0.8mm～1mm of screw-casing bore inner diameter c.

7th, on jet seat, standard pipe thread is preferably processed in the inlet opening of processing, with by silk and admitting pipe joint phase Even.For ensureing that inflow equalizes with stable in collecting chamber, preferably processing 2 or more inlet opening and be arranged symmetrically with.Water inlet Bore dia is according to " ring cross-section that each water inlet pipe internal diameter sectional area sum is constituted more than jet body internal diameter D and feed pipe external diameter E amasss Difference " determine.The radial position of inlet opening it is ensured that inlet opening sectional area can fully enter collecting chamber 12 and should reserve screw thread with The installation dimension of feed pipe.

8th, jet body length should control on the basis of screw-casing endoporus thickness+labyrinth differential 2 thickness sum, then adds The installation dimension of upper 200mm.

Labyrinth differential 2 method for designing of the present invention: first mapping grinding machine screw-casing former feeding seal differential pitch-row, aperture, Pore according to this pitch-row processing labyrinth differential 2 away from, thickness, annular in conjunction with on-site actual situations really this labyrinth differential 2 are recessed The quantity of groove, groove width and groove depth, in the present embodiment, the thickness of labyrinth differential 2 is 20mm, has bipassage ring connected in star, each annular recessed The groove width of groove and groove depth are all designed by 4mm.

The installation method of the sealing device of the present invention, specifically comprises the following steps that

Step one, according to screw-casing axial displacement n during mill working load operation, axially positions jet seat 8: first Consult description or by measure mill working load operation time screw-casing axial displacement n, the axial location dimension of jet seat with On the basis of the inner surface k of screw-casing 1, on the basis of screw-casing axial displacement n, add jet body height and jet body and penetrate Between stream seat, the thickness of gasket seal, is the jet seat inner side end axial location at feed pipe, and jet seat is by welding side Formula or alternate manner are fixed on the outer wall of feed pipe, note the centrage of side end face and the feed pipe controlling jet seat during welding The error of perpendicularity not less than 0.1mm.

Step 2, imbeds axial O RunddichtringO in the annular groove of labyrinth differential 2.

Step 3, installs the labyrinth differential being provided with axial O RunddichtringO with clearance gauge or other sheet instrument order On jet body 6: wherein O RunddichtringO should be less than jet body neck ring external diameter C when selecting, close to ensure the axial O type after installing Seal can tightly be restrainted on the outer wall of jet body.

Step 4, installs jet body 6, will be equipped with the jet body of labyrinth differential by two straight pins with jet seat distribution Radially it is bolted behind location, for preventing the water in collecting chamber 12 from leaking from composition surface, at jet body and jet during installation Sealing gasket 13 is installed additional between Zuo.

Step 5, install feed pipe 11, feed pipe is carried out install centering, centering precision should meet jet body external diameter C with The gap m circumference error of the inwall c of screw-casing 1 endoporus is less than 0.3m.

Step 6, fixing labyrinth differential 2, is pushed axially labyrinth differential 2 and radial direction O RunddichtringO 3 is adjacent to screw-casing End face, fastens after mounting flange bolt.

Step 7, is connected and seals water lines, take two-way water source, connect by water inlet connection 10 after bistrique water measurement table Water inlet on incident flow seat, two-way water supply line should install additional valve respectively, so far, complete the installation of sealing device, starts Come into operation.

Before grinding machine puts into operation, open two-way water source and seal penstock；Owing to this sealing water source is taken at bistrique water measurement table meter After, so, this water yield does not produce impact to the former systematic water balance that grinds；After grinding machine is stopped transport, close two water sources, road and seal penstock.

Claims (10)

1. a feeding sealing device of wet type ball mill, it is characterised in that: include jet seat (8), sealing gasket on Zhou Xiang successively (13), jet body (6) and labyrinth differential (2)；

Described jet seat (8) is connected with jet body (6) by connector (9) and the toroidal cavity that formed between the two is afflux Room (12)；

Described sealing gasket (13) is connected between jet seat (8) and jet body (6)；

Described labyrinth differential (2) is sleeved on the end of jet body (6) and connection between the two has at least twice axial O type to seal Circle.

Feeding sealing device of wet type ball mill the most according to claim 1, it is characterised in that: described labyrinth differential (2) is Ring plate, its inner ring axially has annular groove along it, and in each annular groove, the corresponding the most axially O type that connects seals Circle, and both matched in clearance.

Feeding sealing device of wet type ball mill the most according to claim 1, it is characterised in that: described jet seat (8) is whole Body machine-tooled component, including annular slab and be vertically positioned at the outer peripheral flange connector being arranged circumferentially of annular slab, described connection is convex The top of edge is concordant with annular slab upper surface, bottom exceedes the lower surface of annular slab, and on flange connector, uniform intervals hoop has Jet seat flange hole (81)；Jet seat inlet opening (83) is had on described annular slab.

Feeding sealing device of wet type ball mill the most according to claim 3, it is characterised in that: described jet seat inlet opening (83) at least two, be uniformly arranged on annular slab, described inlet opening is screwed hole and with admitting pipe joint (10) screw thread even Connect.

5. according to the feeding sealing device of wet type ball mill described in claim 3 or 4, it is characterised in that: described jet body (6) wraps Include annular slab, be vertically positioned at the outer peripheral connection chimb being arranged circumferentially of annular slab and the annular being vertically positioned at annular slab inward flange Neck ring, described connection chimb and annular collar lay respectively at the both sides of annular slab, and the top wherein connecting chimb exceedes annular slab Upper surface, end concordant with the lower surface of annular slab, the top of annular collar is concordant with the upper surface of annular slab, end exceedes The lower surface of annular slab；On described connection chimb, uniform intervals hoop has jet body flange hole (61), described jet body flange Hole (61) and jet seat flange hole (81) are correspondingly arranged and pass through connector (9) and connect.

Feeding sealing device of wet type ball mill the most according to claim 5, it is characterised in that: described flange connector also has At least two jet seat pin hole (82) and each two jet seat pin hole (82) are one group is oppositely arranged on the offside of flange connector, And each jet seat pin hole (82) is positioned between two jets seat flange hole (81)；

Also having jet body pin-and-hole (62) on described connection chimb, described jet body pin-and-hole (62) is corresponding with jet seat pin hole (82) Arranging, both are connected by bearing pin.

Feeding sealing device of wet type ball mill the most according to claim 6, it is characterised in that: described axial O RunddichtringO It is tightly sleeved the annular collar terminal part at jet body (6).

8. apply a sealing system for feeding sealing device of wet type ball mill described in claim 7, including screw-casing (1), Feed pipe (11) and be connected to sealing device between the two, it is characterised in that: wherein jet seat (8) is fixedly connected on feed pipe (11) on outer wall；

The end of the annular collar of described jet body (6) is positioned in screw-casing (1) endoporus and is less than the table of screw-casing (1) Face；

Described labyrinth differential (2) is positioned at the outer surface of screw-casing and both are by securing member (7) connection；

The annular slab of described jet seat (8), the flange connector of jet seat (8), the connection chimb of jet body (6), jet body (6) Collecting chamber (12) is formed between the outer wall of annular slab and feed pipe (11).

Sealing system the most according to claim 8, it is characterised in that: described labyrinth differential (2) and the outer surface of screw-casing Between connect have radial seal pad (3).

10. the installation method of a sealing system as claimed in claim 9, it is characterised in that specifically comprise the following steps that

Step one, according to screw-casing axial displacement during mill working load operation, jet seat (8) is axially positioned and Fix with the outer wall of feed pipe and be connected；

Step 2, imbeds axial O RunddichtringO in the annular groove of labyrinth differential (2)；

Step 3, will be provided with axial O RunddichtringO labyrinth differential and be arranged on jet body (6)；

Step 4, after installing sealing gasket (13) between jet body and jet seat additional, the jet body that will be equipped with labyrinth differential is connected to On jet seat；

Step 5, installs feed pipe (11)；

Step 6, is pushed axially labyrinth differential (2) and radial seal pad (3) is adjacent to screw-casing end face, by securing member (7) Fastening；

Step 7, connects and seals water lines, accesses the water inlet on jet seat, two-way water supply line by water inlet connection (10) On should install valve respectively additional, so far, complete the installation of sealing device, start to come into operation.