CN202010465U

CN202010465U - Automatic back-washing suction filter

Info

Publication number: CN202010465U
Application number: CN2011200467824U
Authority: CN
Inventors: 冯宝令; 盛宝祥; 王志涛
Original assignee: ZIBO BOSHAN EXPLOSION-PROOF ELECTRICAL APPARATUS FACTORY Co Ltd
Current assignee: Shandong shield explosion proof equipment Technology Co., Ltd.
Priority date: 2011-02-23
Filing date: 2011-02-23
Publication date: 2011-10-19
Anticipated expiration: 2021-02-23

Abstract

The utility model provides an automatic back-washing suction filter and belongs to the field of automatic back-washing filtering devices for emulsified liquids in coal mines. The automatic back-washing suction filter is characterized in that a cylinder body (5) is divided into two parts, namely, a suction chamber (1) and a filtering chamber (6), a liquid outlet (24) is formed on one end surface of the suction chamber (1), a back-washing device is arranged inside the suction chamber (1), a filtering element (7) is arranged inside the filtering chamber (6) through a bearing (29) and a shaft (28), a non-return valve (11) is arranged at the other end of the filtering chamber (6) through a limiting member (9), the non-return valve (11) is connected with an operating mechanism (16), a drainage valve (4) is mounted at the drainage port (3) which is arranged on one side of the filtering chamber (6), a back-washing pipe is arranged on one side inside the cylinder body (5) and positioned between the filtering element (7) and the cylinder body (5), one end of the back-washing pipe is connected with the back-washing device, the other end of the back-washing pipe is arranged inside the filtering chamber (6), and a plurality of back-washing holes (40) are uniformly distributed on the wall of the back-washing pipe. The automatic back-washing suction filter has the advantages of large filtration area, strong drainage capacity, long service life and timely or automatic on-line cleaning capability.

Description

Automatic backwash imbibition filter

Technical field

Automatic backwash imbibition filter is that the prime of emulsion pump is filtered, and belongs to emulsion automatic back-flushing filtering device field in the colliery.

Background technology

Mine hydraulic bracket and other hydraulic test comprise emulsion pump, and working media is an emulsion, and the cleannes of emulsion are directly connected to the service behaviour and the service life of the hydraulic cylinder of hydraulic test, all valve groups and all hydraulic system; The foreign material that relation produced was floating rough, the crystallization of water oil mixture, emulsion are taken out of during through hydraulic test after recycling of the water quality during emulsion ratio, oil and sebific duct inwall cause coal dusts that factor produced such as the particle that comes off and the working environment under the coal mine etc. all can emulsion to be polluted through rubbing, cause hydraulic system to cause the damage of hardover failure and equipment, therefore very important to the filtration of emulsion; The imbibition filter is before being used in emulsion power pack, the first order of liquid mixing system outlet is filtered, and is sucked all hydraulic equipment and the hydraulic support liquid of supplying with working face by emulsion pump by the emulsion after filtering; But at present the filter that adopts has following deficiency: 1) the emulsion dispensing box of most of manufacturer production is little because of the filter filter area, and filtration yield does not satisfy the traffic requirement of just using liquid always, and clear-cut fixed filter not, as 315L, 400L, 500L emulsion box; 2) existing imbibition filter does not possess backwash and automatic backwash function, only limits to single use respectively and can not in parallel switch and be used alternatingly, and does not realize Hand scarf and online more renew cartridge and maintenance; 3) there is very big problem in the cleaning of filter, has 2 kinds from the using method analysis of conventional filter: medium enters that filter core is inner outwards to be filtered when 1. normally using, and deposit filters in the filter core inner chamber, and above-mentioned foreign material can not be discharged, and causes filter core to block; 2. the medium ecto-entad that has filters foreign material and the bigger floating rough thing of viscosity stops up the filter core mesh, it all is backwashes from inside to outside that the filter that possesses the recoil function is arranged, only rinse out the very little part in top, cleaning area less than 20% can not be accomplished the large-area cleaning of filter core; And reason filter cartridge construction untimely owing to the cleaning of filter causes the damage of low and hydraulic system in filter core service life, a common filter core is only used 2～3 months, and each artificial clean and more renew cartridge and can not adapt to the requirement of big coal mine fully-mechanized mining automation by extremely time-consuming in dismounting inconvenience.

For example, application number is 90201648.2 Chinese patent " a kind of filter that uses the self-cleaning filter core ", and they realize the medium backwash by increasing backwashing pump, and this scheme need increase equipment and solve power source, and cleaning performance is still undesirable; Application number is that the utilization of 02149389.8 Chinese patent " automatic backwashing filter " is filtered valve plate and firm and hard existing the filtration and backwashing function of backwash valve, need prepare external power and filter when valve plate and backwash valve plate need close and open; Secondly because filter and during flushing water (flow) direction do not become with the filter chamber internal pressure and do not lay down, its cleaning performance is still waiting facts have proved.

Summary of the invention

The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide that a kind of high accuracy is filtered, big flow, clean thoroughly, the life-span is long, can realize online automatic backwash, safe and reliable automatic backwash imbibition filter.

The technical scheme that its technical problem that solves the utility model adopts is: this automatic backwash imbibition filter, comprise cylindrical shell, filter core and blowoff valve, it is characterized in that: cylindrical shell is divided into two parts, snapping is fixed, inner barrel is divided into imbibition chamber and filter chamber, imbibition chamber one end face is provided with liquid outlet, back purge system is equipped with in inside, by bearing and axle filter core is housed in the filter chamber, filter chamber's other end is installed check-valves by limited part, check-valves connects operating mechanism, and blowoff valve is installed at the sewage draining exit place of filter chamber's one side; Between a side, filter core and the cylindrical shell recoil tube is housed in the cylindrical shell, recoil tube one end connects back purge system, and the other end is installed in the filter chamber and uniform a plurality of recoils hole on the tube wall.

Described back purge system comprises recoil part, closure plate, seal and spring, and back purge system is equipped with seal in the indoor formation recoil of imbibition chamber on the closure plate.

Described recoil tube is divided into horizontal recoil tube and vertical recoil tube two parts, vertically recoil tube is fixedly mounted in the imbibition chamber, and an end connects the recoil part of back purge system, and the other end connects horizontal recoil tube, laterally recoil tube is installed in the filter chamber, and tube wall is provided with the recoil hole.

Described filter core comprises end socket, filter screen and end cap, and the filter screen medial and lateral are provided with the skeleton by corrosion resistant plate punching out, intensive perforate respectively, and installation shaft in the filter screen is installed bearing at the axle two ends.Make the filter core suspension between support member and imbibition chamber, under stressed effect, can radially rotate.

Described blowoff valve comprises valve body and spool, valve body is divided into up and down two parts, is threaded, the valve body internal upper part is equipped with spool, on the valve body of spool top rubber seal is housed, lining is housed, uniform three mudholes in border on the valve body of top in the rubber seal, in the valve body of spool bottom spring and liner are housed, the valve body outside is with sheath, and the valve body upper end is provided with external screw thread, and the upper and lower end of sheath is equipped with internal thread.

Described spool top is taper surface, and the upper surface is provided with spherical concave surface, and upper taper inclined plane and rubber seal match with the line contact form, and the spool bottom is provided with screw, and the adjustment screw of regulating spring pressure is housed in the screw.The spherical concave surface in spool upper surface be arranged so that the suffered pressure of spool is more concentrated, make the unlatching of spool more convenient, flexible.

Described recoil hole is the tapered aperture of opening, is the inclined at acute angles setting with the filter core center in the horizontal direction.Being obliquely installed of recoil hole can make the liquid that sprays from the recoil hole drive the filter core rotation when washing away filter core, makes cleaning more thorough.

The equal correspondence of the cylindrical shell of described imbibition chamber and outside, filter chamber is provided with ring flange, fixes with quick clip snapping.Two parts cylindrical shell of snapping makes the easier installation of the utility model integral body, dismounting, the maintenance of being more convenient for.

Compared with prior art, the beneficial effect that the utility model had is:

1, strong, the high accuracy filtration of filter capacity, circulation area is big, can effectively filter the impurity in the emulsion, and discharges by blowoff valve, guarantee the cleannes of emulsion, the hydraulic support operation of avoiding causing because of impurity is ineffective, out of control, even the phenomenon of damaging takes place, can be under the prerequisite that guarantee the fully-mechanized mining working safety in production, improve the stability of hydraulic support work, reduce the hydraulic support maintenance, reduce accident rate, prolong the service life of Hydraulic Elements;

2, realize online backwash, needn't move by arrestment, do not influence the operate as normal and the manufacturing schedule of system, pollutant in the filter is all discharged from sewage draining exit, and backwashing time is short, cleaning is more thorough, but self-timing or show that according to Pressure gauge pressure reduction carry out online backflushing washes is time saving and energy saving, convenient and reliable;

3, adopt the blowoff valve of structural design uniqueness, when realizing big flow blowdown sealing reliable, open convenient, volume is little, in light weight, filth-discharging effect is good, realizes the high-performance backwash with this.

Description of drawings

Fig. 1 is the utility model front view cutaway view schematic diagram.

Fig. 2 is the utility model filter core cutaway view schematic diagram.

Fig. 3 is the utility model blowoff valve cutaway view schematic diagram.

Fig. 4 is the horizontal recoil tube part-structure of a utility model schematic diagram.

Wherein: 1, imbibition chamber 2, recoil chamber 3, sewage draining exit 4, blowoff valve 5, cylindrical shell 6, filter chamber 7, filter core 8, support member 9, limited part 10, non-return valve core 11, check-valves 12, check valve body 13, sleeve pipe 14, connecting plate 15, link arm 16, operating mechanism 17, handle 18, horizontal recoil tube 19, quick clip 20, vertical recoil tube 21, recoil part 22, closure plate 23, seal 24, liquid outlet 25, ring flange 26, end socket 27, filter screen 28, axle 29, bearing 30, end cap 31, sheath 32, valve body 33, spool 34, rubber seal 35, lining 36, spring 37, liner 38, adjust screw 39, mudhole 40, the recoil hole.

Fig. 1～4th, most preferred embodiment of the present utility model is described further below in conjunction with 1～4 pair of the utility model of accompanying drawing:

The specific embodiment

With reference to accompanying drawing 1～4:

This automatic backwash imbibition filter, comprise cylindrical shell 5, filter core 7 and blowoff valve 4, cylindrical shell 5 is divided into two parts, the cylindrical shell 5 equal correspondences of imbibition chamber 1 and 6 outsides, filter chamber are provided with ring flange 25, and fix with quick clip 19 snappings, cylindrical shell 5 inside are divided into imbibition chamber 1 and filter chamber 6, imbibition chamber 1 one end faces are fixed with quick clip 19 snappings by ring flange 25 and external flanges, form liquid outlet 24, use so that a plurality of filter is in parallel; Back purge system is equipped with in 1 inside, imbibition chamber, and back purge system comprises recoil part 21, closure plate 22, seal 23 and spring 36, and back purge system forms recoil chamber 2 in imbibition chamber 1, seal 23 is housed on closure plate 22.

By bearing 29 and axle 28 filter core 7 is housed in the filter chamber 6, filter core 7 comprises end socket 26, filter screen 27 and end cap 30, filter screen 27 medial and lateral are provided with the skeleton by corrosion resistant plate punching out, intensive perforate respectively, installation shaft 28 in the filter screen 27, bearing 29 is installed at axle 28 two ends, make filter core 7 suspensions between support member 8 and imbibition chamber 1, under stressed effect, can radially rotate; Filter chamber's 6 other ends are installed check-valves 11 by limited part 9, check-valves 11 connects operating mechanism 16, operating mechanism 16 comprises connecting plate 14, link arm 15 and handle 17, and connecting plate 14 connects the non-return valve core 10 of check-valves 11, and blowoff valve 4 is installed at sewage draining exit 3 places of 6 bottoms, one side in the filter chamber.

Blowoff valve 4 comprises valve body 32 and spool 33, valve body 32 is divided into up and down two parts, is threaded, valve body 32 internal upper parts are equipped with spool 33, on the valve body 32 of spool 33 tops rubber seal 34 is housed, lining 35 is housed in the rubber seal 34, uniform three mudholes 39 in border on the top valve body 32, spring 36 and liner 37 are housed in the valve body 32 of spool 33 bottoms, valve body 32 outsides are with sheath 31, and valve body 32 upper ends are provided with external screw thread, and sheath 31 upper and lower ends are equipped with internal thread; Spool 33 tops are taper surface, and the upper surface is provided with spherical concave surface, and upper taper inclined plane and rubber seal 34 match with the line contact form, and spool 33 bottoms are provided with screw, and the adjustment screw 38 of adjusting spring 36 pressure is housed in the screw.

Between a side, filter core 7 and the cylindrical shell 5 recoil tube is housed in the cylindrical shell 5, recoil tube is divided into horizontal recoil tube 18 and vertical recoil tube 20 two parts, vertically recoil tube 20 is fixedly mounted in the imbibition chamber 1, one end connects the recoil part 21 of back purge system, the other end connects horizontal recoil tube 18, and laterally recoil tube 18 is installed in the filter chamber 6, and tube wall is provided with recoil hole 40, recoil hole 40 is the tapered aperture of opening, is the inclined at acute angles setting with filter core 7 centers in the horizontal direction.

The course of work is as follows:

The utility model in use, the check-valves 11 of filter chamber 5 is built in the emulsion box, the cylindrical shell 5 of imbibition chamber 1 part is external, liquid outlet 24 connects emulsion pump, during normal filtration work, open emulsion pump, emulsion is sucked by the inlet of check-valves 11 1 ends, enter between filter cylinder 5 and the filter core 7 by check-valves 11, pass filter screen 27, after filtering through filter screen 27, enter the imbibition chamber 1 from the outlet of filter core 7 one ends, be inhaled into emulsion pump by liquid outlet 24, at this moment filtering accuracy can reach 140 μ m, is the working face feed flow after the emulsion pump pressurization.

When the needs backwash, send instruction by the pumping plant control device, utilize the above pressure source of the 20MPa of system self, the inlet of emulsion by back purge system entered in the recoil chamber 2, overcome the pressure of spring 36, promote recoil part 21, make closure plate 22 utilize seal 23 that liquid outlet 24 is closed, when liquid outlet 24 was closed, vertically the outlet of recoil tube 20 opposite sides entered in the filter chamber 6 with the medium of equal pressure, automatically close check-valves 11, under the system pressure effect, blowoff valve 4 is opened automatically, the beginning blowdown, highly pressurised liquid is ejected on the filter core 7 with 30 ° of angles uniformly by a plurality of recoils hole 40 that is provided with on the horizontal recoil tube 18, filter core 7 obtains power under the impact of high-pressure fluid, rotation is washed away at high pressure at a high speed, penetrate with centrifugal force and throw under the effect of getting rid of, obtain good developing result, dirt is discharged by blowoff valve 4, and the recoil time is 15 seconds, and recoil finishes, the pumping plant control device cuts out recoil valve, and each valve of automatic backwash imbibition filter automatically resets.

Send instruction when closing the high pressure recoil valve at explosion-proof control device, the utility model release, the closure plate 22 of liquid outlet 24 automatically resets under the effect of spring 36; Blowoff valve 4 makes spool 33 reset under the effect of spring 36 and imbibition, seals sewage draining exit 3 reliably, recovers normal imbibition duty; Use owing to be that 2～3 filters are in parallel, when recoil or maintenance wherein during a filter, other filter operate as normal promptly realizes online backflushing and maintenance; When needs more during renew cartridge 7, could use operating mechanism 16, as long as move handle 17 gently, can close check-valves 11 by link arm 15, connecting plate 14, open quick clip 19 and can extract filter core 7 out, can finish in 15 minutes at most, plate lower handle 17, check-valves 11 are opened and can be carried out normal imbibition work.

The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.

Claims

1. automatic backwash imbibition filter, comprise cylindrical shell (5), filter core (7) and blowoff valve (4), it is characterized in that: cylindrical shell (5) is divided into two parts, snapping is fixed, cylindrical shell (5) inside is divided into imbibition chamber (1) and filter chamber (6), imbibition chamber (1) one end face is provided with liquid outlet (24), back purge system is equipped with in inside, by bearing (29) and axle (28) filter core (7) is housed in the filter chamber (6), filter chamber (6) other end is installed check-valves (11) by limited part (9), check-valves (11) connects operating mechanism (16), and the sewage draining exit (3) of filter chamber's (6) one sides locates to install blowoff valve (4); Between a side, filter core (7) and the cylindrical shell (5) recoil tube is housed in the cylindrical shell (5), recoil tube one end connects back purge system, and the other end is installed in the filter chamber (6) and uniform a plurality of recoils holes (40) on the tube wall.

2. automatic backwash imbibition filter according to claim 1, it is characterized in that: described back purge system comprises recoil part (21), closure plate (22), seal (23) and spring (36), back purge system forms recoil chamber (2) in imbibition chamber (1), seal (23) is housed on the closure plate (22).

3. automatic backwash imbibition filter according to claim 1, it is characterized in that: described recoil tube is divided into horizontal recoil tube (18) and vertical recoil tube (20) two parts, vertically recoil tube (20) is fixedly mounted in the imbibition chamber (1), one end connects the recoil part (21) of back purge system, the other end connects horizontal recoil tube (18), laterally recoil tube (18) is installed in the filter chamber (6), and tube wall is provided with recoil hole (40).

4. automatic backwash imbibition filter according to claim 1, it is characterized in that: described filter core (7) comprises end socket (26), filter screen (27) and end cap (30), filter screen (27) medial and lateral are provided with the skeleton by corrosion resistant plate punching out, intensive perforate respectively, the interior installation shaft of filter screen (27) (28) is installed bearing (29) at axle (28) two ends.

5. automatic backwash imbibition filter according to claim 1, it is characterized in that: described blowoff valve (4) comprises valve body (32) and spool (33), valve body (32) is divided into two parts up and down, be threaded, valve body (32) internal upper part is equipped with spool (33), on the valve body (32) of spool (33) top rubber seal (34) is housed, lining (35) is housed in the rubber seal (34), top valve body (32) is gone up uniform three mudholes in border (39), in the valve body (32) of spool (33) bottom spring (36) and liner (37) are housed, valve body (32) outside is with sheath (31), valve body (32) upper end is provided with external screw thread, on the sheath (31), the bottom is equipped with internal thread.

6. automatic backwash imbibition filter according to claim 5, it is characterized in that: described spool (33) top is taper surface, the upper surface is provided with spherical concave surface, and upper taper inclined plane and rubber seal (34) match with the line contact form, spool (33) bottom is provided with screw, and the adjustment screw (38) of regulating spring (36) pressure is housed in the screw.

7. according to claim 1 or 3 described automatic backwash imbibition filters, it is characterized in that: described recoil hole (40) is the tapered aperture of opening, is the inclined at acute angles setting with filter core (7) center in the horizontal direction.

8. automatic backwash imbibition filter according to claim 1 is characterized in that: the outside equal correspondence of cylindrical shell (5) in described imbibition chamber (1) and filter chamber (6) is provided with ring flange (25), fixes with quick clip (19) snapping.