CN2164892Y

CN2164892Y - High-speed continuous filter press

Info

Publication number: CN2164892Y
Application number: CN 93220269
Authority: CN
Inventors: 陈炳权
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-02
Filing date: 1993-08-02
Publication date: 1994-05-18
Anticipated expiration: 2003-08-02

Abstract

The utility model relates to a filter press, particularly a continuous filter press which is composed of a filter plate, a filter frame and a support frame. A back washing device is positioned in the filter frame, can be move horizontally up and down, and can carry out automatic backwashing on filter material under the condition that filtration is carried out. The utility model has the advantages of small occupation area and high efficiency, is especially suitable for the separation of the suspension liquid of thin particles, and can be used for filtering viscose spinning solution, oil and fat, beverages and polluted water.

Description

High-speed continuous filter press

The utility model is about filter press, the particularly invention of continous way filter press, and this filter is made up of filter plate, filter frame and support.

In order to improve filter efficiency, still need the filter press of special construction so far: promptly need not open the sheet frame of filter, can carry out backwash operation.A kind of known plate and frame filter press is arranged, when filtering end cycle, stop charging, be pressed into backwash liquor from the rightabout that filters, make filter material obtain regeneration, regeneration finishes and recovers to filter again.This filter press can guarantee effective regeneration, but the backwash time is long, and backwash liquor consumption is big, need blast compressed air before and after backwash, gets rid of the material liquid or the backwash liquor that are detained in the filter chamber.

The purpose of this invention is to provide a kind of filter press, when filtering pressure reduction above qualification numerical value, the backwash device that is in the filter frame can carry out backwash automatically to filter material, still carries out as usual and filter.

Its solution is: be equipped with in filter frame and can move the backwash arm to the plane that filter material carries out automatic back-washing.

Its further improvement comprises that also device has the helical rotation system that makes backwash arm upper and lower translation in each filter frame, and screw rod is contained on the filter frame, and transmission nut links to each other with catch box.

When work, pump into material liquid with P1 pressure like this, outside the pressure outflow machine of filtrate with P2, in filter process, it is constant to keep outlet pressure P2 with robot control system(RCS).The outlet of backwash arm communicates the resistance of backwash system when P3 is backwash with atmosphere.

Along with filtration time is passed, filter material stops up, and filtered driving force (P1-P2) strengthens, when surpassing setting value, helical rotation system in the filter frame starts automatically, slowly to other end translation, under backwash motive force (P2-P3) effect, filter residue is oppositely poured the backwash arm by part filtrate to drive backwash arm from an end, derive outside the machine subsequently, make filter material regeneration, the backwash arm arrives other end end, and spiral stops operating.Drop to below the setting value through backwash (P1-P2), along with the continuity of filtration time, the backwash arm will start once more.

The utility model has the advantages that and utilize part filtrate that filter material is carried out the backwash of constant-pressure drop order, directly draw outside the machine, simplified backwash work, strengthened the backwash effect by the backwash arm; This backwash arm automatic back-washing mechanism is easy to carry out repeatedly backwash in short-term, makes the filter material eyelet often keep unimpeded state, has improved filtering rate greatly, and filters and can carry out as usual during backwash.

Accompanying drawing has been described an embodiment of the present utility model.

Accompanying drawing 1: the outline drawing of high-speed and continuous filter press.

Accompanying drawing 2: the backwash arm in the filter frame

Accompanying drawing 3: the A-A in the accompanying drawing 2 analyses and observe

Accompanying drawing 4: the K of accompanying drawing 2 is to view

Accompanying drawing 5: the internal structure of filter plate

Accompanying drawing 1 has been described high-speed continuous filter press, and it is made up of filter plate 2, filter frame 3 and support 8.Hollow shaft 6 is formed support 8 with front wallboard 1 and rear portion channel-section steel 7.Plate and frame screw with several stay bolts 9 between front wallboard 1 and rear wall plate 5.The hollow shaft front opening is the backwash liquor passage, and P3 is the resistance of backwash passage.Filter frame top is provided with oil motor 4, and it links to each other with frame inside spin rotation system.The front wallboard bottom is material liquid import P1, and top is filtrate (liquid P2.

Fig. 2: filter frame 3 is equipped with up and down two groups of backwash arms 12 and 13, and every group has two backwash face A and B, and filter frame is provided with the P1 import 10 that communicates with the frame internal volume, P2 passage 11.Backwash liquor comb 18 communicates with hollow shaft 6 in the P3 outlet, and there is opening hollow shaft bottom and comb corresponding position.

The helical rotation system is housed in the filter frame, and screw rod 17 links to each other with the oil motor 4 of filter frame top, and transmission nut 16 links to each other with catch box, and the screw rod below is a polished rod 15, and the axle sleeve 14 that it links to each other with catch box matches.

Catch box 19 is set in the filter frame, and by Fig. 2 and Fig. 3 as can be seen, for movable sealing is connected, base 21 links to each other with catch box 19 between backwash arm A.B and backwash liquor comb 18 and the catch box 19, and arm 20 is fixed on the backwash arm.Backwash liquor pours backwash arm face groove 22 and enters catch box through arm 20, draws outside the machine through backwash liquor comb 18 again.

Fig. 4 is a backwash arm vertical view, and from Fig. 4 as seen, the catch box wall is provided with slideway 23, the backwash arm is risen support and position-limiting action.

Be equipped with between the backwash arm and give tight spring 24, it can make the backwash arm be affixed to filter material, in material liquid pumps into filter frame, because of backwash pressure P3 well below pump-in pressure P1, the backwash arm can compress to filter material voluntarily, plays the wear-compensating effect, also avoids P1 material liquid and P3 backwash passage short circuit.

Fig. 5 illustrates the filter plate internal structure.Bracing frame 28 and supporting steel wire net 27 are set in the filter plate 2, and filter material 26 is clipped between porous plate 25 and the supporting steel wire net 27, and the porous plate outside is backwash arm contact face.

This filter is fit to suspension of fine particles and separates, and it can be used for the filtration of viscose rayon spinning solution, grease, beverage and sewage.

Claims

1, filter press, particularly continous way filter press, it is made up of filter plate 2, filter frame 3 and support 8, it is characterized in that being equipped with in filter frame moving backwash arm 12 and 13 to the plane that filter material carries out automatic back-washing.

2, according to the described equipment of claim 1, it is characterized in that the backwash arm is two group 12 and 13 up and down, every group has two backwash face A and B.

3,, it is characterized in that being provided with in the filter frame catch box 19 according to the filter press of claim 1 and 2.Be connected for movable sealing between backwash arm 12,13 and backwash liquor comb 18 and the catch box 19.

4,, be equipped with between every group of backwash arm and give tight spring 24 according to the equipment of claim 2.

5, according to the equipment of claim 1 and 2, the catch box wall is provided with the slideway 23 that the backwash arm is played support and position-limiting action.

6, according to the equipment of claim 1 and 2, the helical rotation system is housed in each filter frame.Screw rod 17 links to each other with the oil motor 4 of filter frame top, and transmission nut 16 links to each other with catch box.

7,, bracing frame 28 and supporting steel wire net 27 are set in filter plate 2 according to the equipment of claim 1.