CN201807227U

CN201807227U - On-line sewage asphalt filter

Info

Publication number: CN201807227U
Application number: CN2010205568189U
Authority: CN
Inventors: 罗成
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-14
Filing date: 2010-10-12
Publication date: 2011-04-27
Anticipated expiration: 2020-10-12
Also published as: CN101972564A; CN101972564B

Abstract

The utility model belongs to the technical field of flow meter filter devices, and in particular relates to an on-line sewage asphalt filter. The on-line sewage asphalt filter is characterized in that: in a shell cavity of the filter, a filter screen barrel is arranged between an upper fixing plate and a lower fixing plate and has a conical structure which has a smaller top and a larger bottom; and a spiral scraper welded with a central rotating shaft is arranged in the screen barrel. The rotating shaft is divided into two sections, namely an upper shaft and a lower shaft which are embedded and rabbeted in a concave-convex way; a hand wheel is fixedly connected with the upper shaft; and the lower shaft is positioned in the screen barrel and is welded with the spiral scraper. The on-line sewage asphalt filter has the advantages that: impurities attached to the inner wall of the conical screen barrel are scraped and conveyed to a sewage storage bin by the spiral scraper and are discharged directly through a drain valve. Drainage can be finished on line, so that the shutdown, disconnection and cleaning are avoided; and the on-line sewage asphalt filter is convenient to use. The on-line sewage asphalt filter is not only suitable for asphalt filtering, but also suitable for filtering various types of high-viscosity heavy oil, is simple and easy to operate, and prolongs the service life of the screen filter.

Description

Online blowdown pitch filter

Technical field

The utility model belongs to flow instrument filter technical field, is specifically related to a kind of online blowdown pitch filter.

Background technology

In the asphalt melting process, understand some impurity along with liquid bitumen enters melting systems, the time one, long impurity of sneaking in the liquid bitumen easily stopped up asphalt delivery system, the bitumenpump in the especially fragile induction system, cause influencing activity in production and move normally, even produce and be forced to stop.So the pitch filter that uses must overhaul at set intervals in termination of pumping at present, remove inner foreign material of piling up and replacing filter screen.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of pitch filter simple to operate, the not online blowdown of breaks in production.

For solving the problems of the technologies described above, the technical scheme that adopts is: a kind of online blowdown pitch filter, comprise handwheel, housing, place screen pack bucket and the dust storage cabin and the blowoff valve of described housing inner chamber, it is characterized in that: described net bucket places between described housing inner chamber upper mounted plate and the bottom plate, present little, following big pyramidal structure, the built-in helical flight that is welded to connect with central rotating shaft of described net bucket.

Laterally be equipped with U font deflector between the outside, upper mounted plate and the bottom plate of described net bucket, the bottom of described U font deflector is towards the import of filter pitch, U font opening edge and inner walls are welded to connect, and upper and lower both sides are connected with upper mounted plate, bottom plate respectively.

Described rotating shaft divides goes up two sections of axle and lower shafts, concavo-convex chimeric joggle, and handwheel is fixedlyed connected with last, and lower shaft places in the described net barrel, and is welded to connect with helical flight.

Described bottom plate and centring ring upper surface join, and the inwall of described centring ring neighboring and housing is welded to connect, and connect the strut lower end and place in the locating hole of centring ring, fixedly connected with described centring ring, connect the strut upper end and fixedly connected with upper mounted plate.

The interior exterior bowl double-decker that described housing is imported and exported for the band conduction oil.

The beneficial effects of the utility model are: attached to the foreign material on the taper net bucket inwall, struck off and twisted by helical flight and deliver to dust storage cabin, directly discharge through blowoff valve. blowdown can onlinely be finished, and avoids shutting down and takes cleaning apart, uses more convenient.The utility model is not only applicable to pitch and filters, and is applicable to that also various high viscosity heavy crudes filter, and operation is simple, the filter screen long service life.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 be among Fig. 1 B to the structure cutaway view.

Among the figure, the 1-handwheel; The 2-lid; The 3-housing; The 4-deflector; The 5-helical flight; 6-nets bucket; The 7-bottom plate; The 8-centring ring; The 9-dust storage cabin; The 10-blowoff valve; 11-suspension ring nut; The last axle of 12-; The 13-upper mounted plate; 14-connects strut; The 15-lower shaft.

Specific implementation method:

Structure of the present utility model as shown in Figure 1, as seen from the figure, a kind of online blowdown pitch filter, comprise handwheel 1, housing 3, place screen pack bucket 6 and the dust storage cabin 9 and the blowoff valve 10 of described housing 3 inner chambers, it is characterized in that: described net bucket 6 places between described housing 3 inner chamber upper mounted plates 13 and the bottom plate 7, present little, following big pyramidal structure, the described net bucket 6 built-in helical flights 5 that are welded to connect with central rotating shaft.

Laterally be equipped with U font deflector 4 between the outside, upper mounted plate 13 and the bottom plate 7 of described net bucket 6, the bottom of described U font deflector 4 is towards the import of filter pitch, U font opening edge and housing 3 inwalls are welded to connect, and upper and lower both sides are welded to connect with upper mounted plate 13, bottom plate 7 respectively.

Described rotating shaft divides goes up 15 two sections of axle 12 and lower shafts, concavo-convex chimeric joggle, and handwheel 1 is fixedlyed connected with last axle 12, and lower shaft 15 places in the described net barrels 6, and is welded to connect with helical flight 5.

Described bottom plate 7 joins with centring ring 8 upper surfaces, described centring ring 8 neighborings are connected with the inwall of housing 3, connect strut 14 lower ends and place in the locating hole of centring ring 8, fixedly connected, connect strut 14 upper ends and fixedly connected with upper mounted plate 13 with described centring ring 8.

Viscosity, increase flowability that the interior exterior bowl double-decker that described housing 3 is imported and exported for the band conduction oil, admittance deep fat are heated and can be reduced pitch.

When the online drain filter of pitch is worked, liquid bitumen is through import inflow filter inner chamber, under the effect of deflector 4, shunt to both sides, flow into taper screen pack bucket 6 through upper mounted plate 13, filter the back and flow out from filter outlet, the filter rear impurity is attached on taper net bucket 6 inwalls or be deposited on the helical flight 5.When there is differential pressure at filter import and export two ends or need regularly removes contamination, clockwise rotate handwheel 1 and drive upward axle 12 and lower shaft 15, the helical flight 5 that welds with lower shaft 15 is struck off attached to the foreign material of netting bucket 6 inwalls, and make foreign material under the extruding guiding of helical flight 5 helicoids, enter dust storage cabin 9.Repeatedly clockwise rotate handwheel 1, when the filter two ends still have pressure reduction, then need open blowoff valve 10, make the foreign material discharge filter in the dust storage cabin 9, close blowoff valve 10 after a while, finish online blowdown process.Whole process is all online to be finished, and need not termination of pumping, does not influence production.The special circumstances more as foreign material can be unclamped suspension ring nut 11, open fast cover 2 take out to filter in core assembly clean.

Claims

1. online blowdown pitch filter, comprise handwheel (1), housing (3), place screen pack bucket (6) and the dust storage cabin (9) and the blowoff valve (10) of described housing (3) inner chamber, it is characterized in that: described net bucket (6) places between described housing (3) inner chamber upper mounted plate (13) and the bottom plate (7), present little, following big pyramidal structure, the built-in helical flight (5) that is welded to connect with central rotating shaft of described net bucket (6).

2. according to the described online blowdown pitch filter of claim 1, it is characterized in that: laterally be equipped with U font deflector (4) between the outside, upper mounted plate (13) and the bottom plate (7) of described net bucket (6), the U font bottom of described deflector (4) is towards the import of filter pitch, U font opening edge and housing (3) inwall is welded to connect, and upper and lower both sides are connected with upper mounted plate (13), bottom plate (7) respectively.

3. according to the described online blowdown pitch filter of claim 1, it is characterized in that: (15) two sections of described rotating shaft last axle of branch (12) and lower shafts, concavo-convex chimeric joggle, handwheel (1) is fixedlyed connected with last axle (12), lower shaft (15) places in the described net bucket (6), and is welded to connect with helical flight (5).

4. according to the described online blowdown pitch filter of claim 1, it is characterized in that: described bottom plate (7) joins with centring ring (8) upper surface, described centring ring (8) neighboring is connected with the inwall of housing (3), connecting strut (14) lower end places in the locating hole of centring ring (8), fixedly connected with described centring ring (8), connect strut (14) upper end and fixedly connected with upper mounted plate (13).

5. according to the described online blowdown pitch filter of claim 1, it is characterized in that: the interior exterior bowl double-decker that described housing (3) is imported and exported for the band conduction oil.