CN101234270A

CN101234270A - Filter station

Info

Publication number: CN101234270A
Application number: CNA2007101882146A
Authority: CN
Inventors: 马丁·路透
Original assignee: Marco Systemanalyse und Entwicklung GmbH
Current assignee: Marco Systemanalyse und Entwicklung GmbH
Priority date: 2006-11-14
Filing date: 2007-11-09
Publication date: 2008-08-06
Anticipated expiration: 2027-11-09
Also published as: DE102006053629A1; PL383770A1; CN101234270B; RU2007142001A; PL211386B1; RU2370304C2; DE102006053629B4

Abstract

The station has a housing (10) designed as a filter block, and backflushing filters (12, 14) arranged on the housing. A valve (16) i.e. double operative poppet valve, is provided in the filter block for alternately detaching one of the two backflushing filters from a feeder. Set of valves (18) i.e. poppet valves, are provided for connecting an inlet of the backflushing filters with a backflushing connector. The valve (16) has a larger flow rate than one of the set of valves.

Description

Filter station

Technical field

The present invention relates to a kind of filter station that is used for underground mining.

Background technology

Such filter station knows and is used to filter the pressure fluid of walking type hydraulic supports device basically for the people.

Summary of the invention

The objective of the invention is to, propose a kind of filter station that is used for underground mining, this filter station can be realized better backflush with lower cost.

This purpose will realize by the described feature of claim 1, and it is characterized in that filter station has the housing that is designed to filtering module, and this housing is provided with two reverse washing filters.In filtering module, be provided with first valve, thereby make one in two reverse washing filters alternately to separate, and be provided with two second valves, thereby the inlet of reverse washing filter is connected with the backflush interface respectively with inflow entrance.Therefore, can only utilize three valves in the filtering module of compactness, to realize backflush altogether according to the present invention.

A plurality of preferred embodiment of the present invention illustrates in specification, accompanying drawing and dependent claims.

According to first preferred embodiment, first valve has than any big flow of flow in two second valves, wherein, the flow of each second valve be in particular first valve flow about 5% to about 20%.In this embodiment, the switching that is used for the backflush process will realize by the combination of two kinds of different valves.For filter to be cleaned and inflow entrance are separated, need have the valve of big flow, for example 2000 to 2500 liters/minute the order of magnitude.Yet, for filter is connected with refluxing, valve with less basically flow is favourable, because can open this valve very fast, and produce compression shock therefrom in filter, this compression shock is removed dirt when backflush better from filter.

According to another preferred embodiment, first valve is especially double-acting moushroom valve, and this moushroom valve for example is open from two seal receptacles by spring, and under normal circumstances is placed in the centre position.Two second valves can be moushroom valves, and they for example have the flow of 200 liters/the number of minutes magnitude.

According to another preferred design, reverse washing filter is erected to be arranged on above the housing, because can make the dirt for the treatment of backflush accumulate in the outlet opening place that is used to wash better in this way.

In addition, the inflow entrance of filter station and flow export design and are arranged to plug-in type jack and casing joint like this, and promptly filter station is series connected.In this way, a plurality of filter stations can be connected in series by simple pegging graft mutually, thereby improve filter capacity.

Description of drawings

Next, only exemplarily present invention is described according to advantageous embodiments and with reference to accompanying drawing.Shown in the figure:

Fig. 1 is the perspective view of filter station;

Fig. 2 is the hydraulic diagram of the filter station of Fig. 1; And

Fig. 3 is the sectional view of the filter station of Fig. 1.

The specific embodiment

Fig. 1 shows the perspective view of the filter station that is used for underground mining, and this filter station has the housing 10 that is designed to filtering module, and two

reverse washing filters

12 and 14 are set on this housing.Two

reverse washing filters

12 and 14 be erected to be arranged on housing above.The first traveling control valve of reference identification 16 expressions, it can be controlled electrically by plug 18.

Stacked on top of each otherly on housing wall housing 10, be provided with an inflow entrance P alignedly in the left side among Fig. 1 _InWith a flow export P _Out, they are designed to the plug-in type jack.On the relative outer right wall of housing 10, inflow entrance P _InWith flow export P _OutDraw from housing 10 again, wherein lead division is designed to casing joint.When using a plurality of filter station,, can be inserted into by the casing joint that makes a filter station in the plug-in type jack of another filter station and be connected in series these filter stations each other according to the size design and the layout of filter station.Can realize sealing by O type ring at this.When only using a filter station, in Fig. 1, has the interface P of casing joint _InWith the interface P that is designed to the plug-in type jack _OutBy blind plug sealing.

Fig. 2 shows the hydraulic diagram of filter station shown in Figure 1, wherein owing to use general this hydraulic schematic diagram of symbol itself to be understood self-evidently, to such an extent as to can no longer be described further.This can be seen that hydraulic diagram shows two the filter station B1 and the B2 of serial connection mutually shown in figure 2, wherein each filter station all has two reverse washing filters 12 and 14.Next only filter station B1 is described, because the structure of filter station B2 is identical thus.Be provided with first valve 16 in order automatically to control the backflush process, its can with one in two

reverse washing filters

12 and 14 alternately with inflow entrance P _InSeparate.In addition, be provided with two

second valves

18 and 20, they with the

inlet

22 and 24 of

reverse washing filter

12 and 14 respectively with backflush interface R _WasteCouple together.Two first

traveling control valves

26 and 28 are used for

control valve

16,18 and 20, and these two first traveling control valves can pass through port E ₂Controlled electrically.Reference identification S1 and S2 represent to be used for inlet pressure P _InWith outlet pressure P _OutPressure sensor.

Fig. 3 shows the sectional view of the filter station of Fig. 1, and its middle section is selected like this, promptly passes first valve respectively and two second valves intercept.

First valve 16 that illustrates above Fig. 3 is designed to double-acting moushroom valve, and wherein valve disc 30 medially is fixed on the valve rod 32, and this valve rod remains on the centre position by two springs 33 and 34.Valve rod 32 imports in the interface plug stifled 36 and 38 of two outsides and can move in these interface plugs are stifled.In order to handle first valve 16, on that pressure fluid is supplied with valve rods 32 by hole 40, the 42 or left part or on the right part, thereby make this valve rod or or to left movement, the result is resisted against on left valve seat 44 or the right valve seat 46 dish 30 hermetically to the right.Thus, separate or to left side reverse washing filter 12 or to the inflow entrance of right side reverse washing filter 14, thus can the relevant filter of backflush.Backflush itself is realized by handling of second valve 18,20.Because two

second valves

18 and 20 have identical construction, so next only be described in second valve 18 shown in Fig. 3 left side.Second valve 18 is designed to moushroom valve, and wherein valve piston 50 is pressed against on the seal receptacle 54 with its sealing surface 52.For control valve 18, pressure fluid by slotted hole 56 delivery to valve piston 50 in Fig. 3 on the piston area in left side, thereby this valve piston is moved right, thereby sealing surface 52 is lifted from valve seat 54.

Second valve

18 and 20

entrance side

22,24 and flushing outlet R with

reverse washing filter

12 and 14 _WasteCouple together.This connection can not be found out in the accompanying drawings, because this connection is not arranged in the cross section.

Claims

1. filter station that is used for underground mining, has the housing (10) that is designed to filtering module, described housing is provided with two reverse washing filters (12,14), wherein, in described filtering module, be provided with first valve (16), thus make in two described reverse washing filters (12,14) one alternately with inflow entrance (P _In) separate, and be provided with two second valves (18,20), thus the inlet (22,24) that makes reverse washing filter (12,14) respectively with backflush interface (R _Waste) connect.

2. filter station according to claim 1, it is characterized in that, described first valve (16) has than any big flow of flow in two described second valves (18,20), wherein, the flow of each described second valve (18,20) especially is about 5-20% of the flow of described first valve (16).

3. filter station according to claim 1 and 2 is characterized in that, described first valve (16) is especially double-acting moushroom valve.

4. according at least one described filter station in the aforementioned claim, it is characterized in that described second valve (18,20) is a moushroom valve.

5. according at least one described filter station in the aforementioned claim, it is characterized in that, described reverse washing filter (12,14) be erected to be arranged on described housing (10) above.

6. according at least one described filter station in the aforementioned claim, it is characterized in that the described inflow entrance (P of described filter station _In) and flow export (P _Out) designing and be arranged to plug-in type jack and casing joint like this, promptly described filter station is series connected.