CN220714927U - Diaphragm plate for filter press - Google Patents

Abstract

The utility model discloses a diaphragm plate for a filter press, in particular to the field of filter presses for solid-liquid separation, which comprises a diaphragm plate body, wherein a first diaphragm sheet and a second diaphragm sheet are fixedly arranged on the diaphragm plate body, a diaphragm chamber cavity is arranged between the first diaphragm sheet and the second diaphragm sheet and between the first diaphragm sheet and the diaphragm plate body, bosses are fixedly arranged on the first diaphragm sheet and the second diaphragm sheet, clamping rubber is fixedly arranged in the bosses, an insert block is arranged in the clamping rubber, the insert block is attached to the clamping rubber, and a chute is formed in the insert block. The utility model has the advantages that the lug bosses among the diaphragm plates are connected through the structures such as the inserting blocks, the connecting rods and the sliding grooves, and can stretch and retract along with the separation and the approaching between the two diaphragm plates when being connected, so that the lug bosses are connected, and the lug bosses cannot shift in position during secondary pressure filtration, so that the diaphragm sheets cannot be pulled and cannot be damaged.

Description

Diaphragm plate for filter press

Technical Field

The present utility model relates to the field of filter presses for solid-liquid separation, and more particularly, to a diaphragm plate for a filter press.

Background

The filter press is an important solid-liquid separation device applied in industrial production, and is widely applied to the technical fields of wastewater, chemical industry, food, metallurgy, pharmacy and the like. The filter press mainly comprises a frame, a plurality of diaphragm plates and a plurality of filter plates which are alternately arranged on the frame, filter cloth between the adjacent diaphragm plates and the filter plates, and the like. It can be seen that the diaphragm plate is an important component of the filter press. The filter press diaphragm plate functions to squeeze the filter cake by changing the volume of its chamber after it is inflated.

In the prior art, patent publication number CN202120819776.1 is a boss separating diaphragm without a core plate, which comprises a diaphragm body, wherein the diaphragm body is formed by welding the edges of two diaphragm sheets, a diaphragm chamber cavity is arranged between the two diaphragm sheets, four bosses are symmetrically arranged at the center of the diaphragm sheets, the bosses and the diaphragm sheets are in an integral structure, and the bosses on the inner sides of the two diaphragm sheets which are welded with each other are mutually attached; the diaphragm plate structure can increase the extrusion water space, effectively increases the mud inlet pressure, increases the support compared with the extrusion of the diaphragm without the boss, and avoids the distortion and fracture of the boss connecting pins caused by the uneven mud cakes.

However, in this method, when the two diaphragm sheets are inflated to expand and press the filter cake together with the other diaphragm sheets, the convex surfaces of the inflated diaphragm sheets tend to be inconsistent, so that the bosses on the inflated diaphragm sheets are offset from each other, and the diaphragm sheets between the two diaphragm sheets are offset from each other, so that the diaphragm sheets are pulled when the filter press performs secondary pressing, and the diaphragm sheets are damaged.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides a diaphragm plate for a filter press, so as to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a diaphragm plate for pressure filter, includes the diaphragm plate body, fixed first diaphragm piece and the second diaphragm piece of being equipped with on the diaphragm plate body, be equipped with the diaphragm chamber between first diaphragm piece and second diaphragm piece and the diaphragm plate body, all be fixed on first diaphragm piece and the second diaphragm piece and be equipped with the boss, the inside fixed screens rubber that is equipped with of boss, the inside inserted block that is equipped with of screens rubber, the inserted block laminates with screens rubber mutually, the spout has been seted up to the inside of inserted block, the inside connecting rod that is equipped with of spout.

Through adopting above-mentioned technical scheme, the boss between two this diaphragm boards is connected by inserted block and connecting rod for the boss can not take place dislocation when pressure filter secondary filter pressing and lead to first diaphragm and second diaphragm to be pulled bad.

Optionally, the first diaphragm and the second diaphragm are both fixedly provided with feed inlets, and the diaphragm plate body is provided with a plurality of drain holes.

Through adopting above-mentioned technical scheme, the material that the feed inlet will draw in link up between each diaphragm board, and the blowdown hole is collected and is discharged the moisture that the pressure was filtered out.

Optionally, the both sides frame of first diaphragm and second diaphragm all symmetry is equipped with the filtration pore, the quantity of filtration pore sets up to a plurality of.

By adopting the technical scheme, the filtering holes discharge the sewage generated in the secondary filter pressing process from between the diaphragm plates.

Optionally, push-pull members are respectively arranged at two sides of the diaphragm plate body, and the two push-pull members are fixedly connected with the diaphragm plate body.

By adopting the technical scheme, the push-pull rod slides in the chute when each diaphragm plate is extruded or far away, so that the distance generated by the push-pull rod is adapted, and the two bosses are supported so as not to deviate.

Optionally, the bottom of one side of the diaphragm plate body is movably provided with a water outlet pipe, and the bottom of the other side of the diaphragm plate body is movably provided with an air inlet pipe.

By adopting the technical scheme, the sewage collected in the sewage draining hole is discharged into the diaphragm plate of the filter press by the water outlet pipe, and the air inlet pipe fills the air in the diaphragm chamber, so that the first diaphragm and the second diaphragm expand to secondarily squeeze the filter cake.

Optionally, the diaphragm plate body is inside to be equipped with the water inlet line near blowdown hole position department, water inlet line one end is linked together with blowdown hole, the water inlet line other end link up diaphragm plate body one side and outside contact.

By adopting the technical scheme, the sewage in the cavity of the diaphragm chamber can flow into the sewage draining hole through the water inlet route.

The utility model has the technical effects and advantages that:

1. the bosses among the plurality of diaphragm plates are connected through the structures such as the insertion blocks, the connecting rods and the sliding grooves, and can stretch and retract along with the separation and the approaching between the two diaphragm plates while being connected, so that the bosses are connected, and the bosses cannot shift in position during secondary filter pressing, so that the diaphragm cannot be pulled and damaged;

2. through setting up screens rubber, made things convenient for the inserted block to insert and pull out inside the boss, when needs are changed the inserted block connecting rod, directly insert the jack or pull out, simple and convenient, easily change, and screens rubber can effectively fix the inserted block in it owing to self material property.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a cross-sectional view showing the structure of a diaphragm plate for a filter press according to the present utility model.

Fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

Fig. 4 is an enlarged schematic view of the structure of fig. 2B according to the present utility model.

The reference numerals are: 1. a diaphragm plate body; 2. a first diaphragm sheet; 3. a second diaphragm; 4. a diaphragm chamber; 5. a boss; 6. clamping rubber; 7. inserting blocks; 8. a chute; 9. a connecting rod; 10. a feed inlet; 11. a blow-down hole; 12. a filter hole; 13. a push-pull member; 14. a water outlet pipe; 15. an air inlet pipe; 16. and a water inlet line.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The diaphragm plate for the filter press comprises a diaphragm plate body 1, a first diaphragm sheet 2 and a second diaphragm sheet 3 are fixedly arranged on the diaphragm plate body 1, a diaphragm chamber cavity 4 is arranged between the first diaphragm sheet 2 and the second diaphragm sheet 3 and the diaphragm plate body 1, bosses 5 are fixedly arranged on the first diaphragm sheet 2 and the second diaphragm sheet 3, clamping rubber 6 is fixedly arranged in the bosses 5, an insert block 7 is arranged in the clamping rubber 6, the insert block 7 is attached to the clamping rubber 6, a sliding groove 8 is formed in the insert block 7, a connecting rod 9 is arranged in the sliding groove 8, and the sliding groove 8 is arranged for enabling the connecting rod 9 to stretch out and draw back in the insert block 7 through sliding of the connecting rod 9 in the sliding groove 8, so that the connecting rod 9 is pulled out in the insert block 7 during primary filter pressing and the diaphragm plate for the filter press during secondary filter pressing. The connecting rod 9 is compressed in the insert 7, so as to adapt to the distance between the diaphragm plates for the two filter presses when primary filter pressing and secondary filter pressing.

As shown in fig. 1 and 2, the first diaphragm 2 and the second diaphragm 3 are both fixedly provided with a feed inlet 10, the diaphragm plate body 1 is provided with a plurality of blow-down holes 11, and the feed inlet is provided for conveying substances to be subjected to pressure filtration between the diaphragm plates.

As shown in fig. 1, the two side frames of the first diaphragm 2 and the second diaphragm 3 are symmetrically provided with a plurality of filtering holes 12, and the filtering holes 12 are provided for discharging sewage generated by secondary compression of filter cakes in substances.

As shown in fig. 1, two sides of the diaphragm body 1 are respectively provided with a push-pull member 13, two push-pull members 13 are fixedly connected with the diaphragm body 1, and the push-pull members 13 are arranged to cooperate with a device on a filter press, so that each diaphragm plate can be automatically removed, and a filter cake between each diaphragm plate falls out from the diaphragm plate.

As shown in fig. 1, the bottom of one side of the diaphragm plate body 1 is movably provided with a water outlet pipe 14, the bottom of the other side of the diaphragm plate body 1 is movably provided with an air inlet pipe 15, and the air inlet pipe 15 is provided for conveying air into the diaphragm chamber 4, so that the first diaphragm 2 and the second diaphragm 3 are inflated, and a filter cake between the diaphragm plates is pressed and filtered again.

As shown in fig. 4, a water inlet line 16 is disposed in the diaphragm plate body 1 and near the position of the drain hole 11, one end of the water inlet line 16 is communicated with the drain hole 11, and the other end of the water inlet line 16 penetrates through one side of the diaphragm plate body 1 to contact with the outside, and the water inlet line is disposed to convey water remaining in the diaphragm chamber cavity 4 into the drain hole 11.

The working principle of the utility model is as follows: when the diaphragm plate for the filter press is used, a plurality of diaphragm plates are placed and installed in the filter press through push-pull pieces 13 on two sides of a diaphragm plate body 1, then the diaphragm plates are pressed together through compression of the filter press, a pumping device is started to pump substances to be subjected to filter pressing into the space between the diaphragm plates, the substances are input between the diaphragm plates through a through feeding hole 10, fixed substances in the substances stay between the two diaphragm plates during input, moisture is reserved in a diaphragm chamber 4, the moisture enters a blow-down hole 11 through a water inlet line 16 and then enters a water outlet pipe 14 communicated with the blow-down hole 11 on one side of the diaphragm plate body 1 through the blow-down hole 11, so that the substances are discharged out of the diaphragm chamber 4 through the water outlet pipe 14, after the first filter pressing is finished, gas is conveyed into an air inlet pipe 15, the diaphragm chamber 4 is filled with gas, and the diaphragm chamber 4 filled with the gas causes the first diaphragm plate 2 and the second diaphragm plate 3 to swell. Thereby secondarily squeezing the solid matters remained between the two diaphragm plates, so that the residual moisture in the matters flows out from the filter holes 12 through the squeezing, and the solid matters are squeezed to be drier;

during secondary filter pressing, the boss 5 between the first diaphragm 2 and the second diaphragm 3 on the two diaphragm plates is inserted with the insert block 7 through the clamping rubber 6, the insert block 7 between the two diaphragm plates is connected through the connecting rod 9, and the connecting rod 9 slides in the sliding grooves 8 in the insert block 7, so that during filter pressing, the connecting rod 9 slides in the two sliding grooves 8, the boss 5 is not staggered when the first diaphragm 2 and the second diaphragm 3 expand, the first diaphragm 2 and the second diaphragm 3 cannot be pulled during extrusion, the diaphragm is damaged, and when the connecting rod 9 and the insert block 7 are damaged after long-time use, the insert block 7 can be pulled out from the clamping rubber 6 in the boss 5 for replacement.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (6)

1. A diaphragm plate for a filter press, comprising a diaphragm plate body (1), characterized in that: the novel diaphragm plate is characterized in that a first diaphragm plate (2) and a second diaphragm plate (3) are fixedly arranged on the diaphragm plate body (1), a diaphragm chamber cavity (4) is formed between the first diaphragm plate (2) and the second diaphragm plate (3) and the diaphragm plate body (1), bosses (5) are fixedly arranged on the first diaphragm plate (2) and the second diaphragm plate (3), clamping rubber (6) is fixedly arranged inside the bosses (5), an inserting block (7) is arranged inside the clamping rubber (6), the inserting block (7) is attached to the clamping rubber (6), a sliding groove (8) is formed in the inserting block (7), and a connecting rod (9) is arranged inside the sliding groove (8).

2. A diaphragm plate for a filter press according to claim 1, wherein: the first diaphragm (2) and the second diaphragm (3) are fixedly provided with feed inlets (10), and the diaphragm plate body (1) is provided with a plurality of blow-down holes (11).

3. A diaphragm plate for a filter press according to claim 1, wherein: the two side frames of the first diaphragm (2) and the second diaphragm (3) are symmetrically provided with filter holes (12), and the number of the filter holes (12) is multiple.

4. A diaphragm plate for a filter press according to claim 1, wherein: push-pull pieces (13) are arranged on two sides of the diaphragm plate body (1), and the two push-pull pieces (13) are fixedly connected with the diaphragm plate body (1).

5. A diaphragm plate for a filter press according to claim 1, wherein: the bottom of one side of the diaphragm plate body (1) is movably provided with a water outlet pipe (14), and the bottom of the other side of the diaphragm plate body (1) is movably provided with an air inlet pipe (15).

6. A diaphragm plate for a filter press according to claim 1, wherein: the diaphragm plate is characterized in that a water inlet line (16) is arranged at the position, close to the sewage drain hole (11), inside the diaphragm plate body (1), one end of the water inlet line (16) is communicated with the sewage drain hole (11), and the other end of the water inlet line (16) penetrates through one side of the diaphragm plate body (1) and is in contact with the outer side.