Filter pressing device for sludge treatment

Abstract

The utility model relates to the technical field of sludge treatment, and discloses a filter pressing device for sludge treatment, which comprises a first mounting plate and a second mounting plate, a plurality of groups of fixing rods are fixedly connected between the first mounting plate and the second mounting plate, and each group of fixing rods is slidably connected with a plurality of groups of sliding sleeves. A plurality of groups of sludge feeding frames and filtering frames are arranged between the first mounting plate and the second mounting plate, the sludge feeding frames and the filtering frames are arranged in a staggered manner, and second springs arranged on the fixing rods in a sleeving manner are arranged between every two adjacent groups of sliding sleeves. And when the plate frame is unfolded, the filter screen elastically oscillates, so that sludge attached to the filter screen is shaken off, manual knocking is not needed, and the practicability of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sludge treatment technical field, specifically is a kind of pressure filter device for sludge treatment. BACKGROUND

[0002] Plate-and-frame filter press is a kind of machinery for sludge dewatering. Because it has the advantages of large filtering driving force, high solid content of filter cake, clear filtrate and high solid recovery rate, it is still widely used in some small sewage plants. It is arranged by plate and frame, and filter cloth is covered on both sides of filter plate. The plate and frame are pressed by pressing device, and a pressure filter chamber is formed between the plate and frame. Small holes are opened in the same position of the upper end of the plate and frame, and become a passage after being pressed. The sludge under pressure of 0.2-0.4 MPa enters the pressure filter chamber through the passage. The surface of the filter plate is engraved with grooves, and the lower end is drilled with a hole for discharging filtrate. The filtrate is discharged from the filter through the grooves and the hole under pressure, so that the sludge is dewatered.

[0003] However, the plate-and-frame filter press in the prior art still has the following disadvantages in actual use: first, in the prior art, after the pressure filtration is completed, each filter plate needs to be pulled open one by one, and the mud cake on the filter plate needs to be knocked off, which is slow and inefficient. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a pressure filter device for sludge treatment to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A pressure filter device for sludge treatment, comprising a first mounting plate and a second mounting plate, a plurality of fixed rods are fixedly connected between the first mounting plate and the second mounting plate, a plurality of sliding sleeves are slidably connected on each fixed rod, a plurality of mud inlet frames and filter frames are arranged between the first mounting plate and the second mounting plate, the mud inlet frames and the filter frames are arranged alternately, a second spring is arranged between the adjacent two groups of sliding sleeves and sleeved on the fixed rod, sealing grooves are arranged on both sides of the mud inlet frame, and the sealing grooves and the filter frames are slidably sealed, expansion grooves are arranged on both sides of the filter frame, a mounting frame is slidably connected in the expansion groove, a filter screen is installed in the mounting frame, spring grooves are arranged on both sides of the filter frame, a top block is slidably connected in the spring groove, one end of a connecting rod is fixedly connected to the top block, and the other end of the connecting rod is fixedly connected to the mounting frame through the filter frame, a first spring is arranged in the spring groove and sleeved on the connecting rod, and four spring grooves on both sides of each filter frame are symmetrically arranged on four frame edges of the filter frame.

[0007] As a further scheme of the utility model: first mounting plate is fixedly connected with hydraulic telescopic pump, a group of sealing plates are fixedly connected on the output group shaft of hydraulic telescopic pump, another group of sealing plates are fixedly connected on the second mounting plate, sealing plate and filter frame slide seal.

[0008] As a further scheme of the utility model: first mounting plate and second mounting plate are fixedly connected with mud supply pipe, a plurality of first connecting heads are arranged on the mud supply pipe, mud inlet is arranged on the outer wall of mud inlet frame, and the mud inlet and the first connecting head are connected through a hose.

[0009] As a further scheme of the utility model: the second mounting plate is fixedly connected with the mud pump, and the mud pump is connected with the mud supply pipe.

[0010] As a further scheme of the utility model: first mounting plate and second mounting plate are fixedly connected with water suction pipe, a plurality of second connecting heads are arranged on the water suction pipe, water outlet is arranged on the outer wall of filter frame, the water outlet is arranged between the two groups of filter screens, and the water outlet and the second connecting head are connected through a hose.

[0011] As a further scheme of the utility model: the second mounting plate is fixedly connected with the vacuum pump, and the vacuum pump is connected with the water suction pipe.

[0012] Compared with the prior art, the utility model has the advantages that: the filter screen is installed on the elastic telescopic mounting frame, the elastic vibration of the filter screen is generated when the plate frame is unfolded, thereby the sludge adhered to the filter screen is shaken off, manual knocking is not needed, and the practicability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of the pressure filter device for sludge treatment in the utility model.

[0014] Figure 2 It is a structure schematic view of the pressure filter device for sludge treatment in the utility model.

[0015] Figure 3 It is a structure schematic view of the pressure filter device for sludge treatment in the utility model.

[0016] Figure 4 It is a structure schematic view of the pressure filter device for sludge treatment in the utility model. Figure 3 It is a local enlarged view of point A in the utility model.

[0017] Figure 5 It is a structure schematic view of the pressure filter device for sludge treatment in the utility model.

[0018] In the figure: 1 - first mounting plate, 2 - second mounting plate, 3 - fixed rod, 4 - sliding sleeve, 5 - mud inlet frame, 6 - filter frame, 7 - sealing groove, 8 - expansion groove, 9 - mounting frame, 10 - spring groove, 11 - top block, 12 - connecting rod, 13 - first spring, 14 - filter screen, 15 - second spring, 16 - mud supply pipe, 17 - first connecting head, 18 - mud inlet, 19 - mud pump, 20 - water suction pipe, 21 - second connecting head, 22 - water outlet, 23 - vacuum pump, 24 - hydraulic expansion pump, 25 - mud discharge groove, 26 - sealing plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Referring to Figures 1-5 In the embodiments of the present application, a filter pressing device for sludge treatment includes a first mounting plate 1 and a second mounting plate 2, a plurality of groups of fixed rods 3 are fixedly connected between the first mounting plate 1 and the second mounting plate 2, a plurality of groups of sliding sleeves 4 are slidingly connected on each group of fixed rods 3, a plurality of groups of mud inlet frames 5 and filter frames 6 are arranged between the first mounting plate 1 and the second mounting plate 2, the mud inlet frames 5 and the filter frames 6 are arranged in an interlaced manner, a second spring 15 is arranged between every two adjacent groups of sliding sleeves 4 and is sleeved on the fixed rod 3, sealing grooves 7 are arranged on both sides of the mud inlet frame 5, the sealing grooves 7 and the filter frames 6 are slidingly sealed with each other, expansion grooves 8 are arranged on both sides of the filter frame 6, mounting frames 9 are slidingly connected in the expansion grooves 8, filter screens 14 are installed in the mounting frames 9, spring grooves 10 are arranged on both sides of the filter frame 6, top blocks 11 are slidingly connected in the spring grooves 10, one end of a connecting rod 12 is fixedly connected to the top block 11, the other end of the connecting rod 12 penetrates through the filter frame 6 and is fixedly connected to the mounting frame 9, first springs 13 are arranged in the spring grooves 10 and are sleeved on the connecting rod 12, four groups of spring grooves 10 on both sides of each group of filter frames 6 are symmetrically arranged on four groups of frame edges of the filter frame 6, and a mud discharge groove 25 is arranged at the bottom of the first mounting plate 1 and the second mounting plate 2.

[0021] A hydraulic expansion pump 24 is fixedly connected to the first mounting plate 1, a group of sealing plates 26 are fixedly connected to the output shaft of the hydraulic expansion pump 24, another group of sealing plates 26 are fixedly connected to the second mounting plate 2, and the sealing plates 26 are slidingly sealed with the filter frames 6. The outermost end of the filter frame 6 is sealed by the arrangement of the two groups of sealing plates 26.

[0022] The first mounting plate 1 and the second mounting plate 2 are fixedly connected with a mud supply pipe 16, a plurality of first connecting heads 17 are arranged on the mud supply pipe 16, a mud inlet 18 is arranged on the outer wall of the mud inlet frame 5, the mud inlet 18 is connected with the first connecting head 17 through a hose, and the second mounting plate 2 is fixedly connected with a mud pump 19, and the mud pump 19 is connected with the mud supply pipe 16;

[0023] The first mounting plate 1 and the second mounting plate 2 are fixedly connected with a water suction pipe 20, a plurality of second connecting heads 21 are arranged on the water suction pipe 20, a water outlet 22 is arranged on the outer wall of the filter frame 6, the water outlet 22 is arranged between the two groups of filter screens 14, the water outlet 22 is connected with the second connecting head 21 through a hose, and the second mounting plate 2 is fixedly connected with a vacuum pump 23, and the vacuum pump 23 is connected with the water suction pipe 20;

[0024] The second spring 15 is not compressed under normal conditions, at this time, the second spring 15 pushes a plurality of sliding sleeves 4 to slide and expand on the fixed rod 3, the sliding sleeve 4 drives the mud inlet frame 5 and the filter frame 6 to expand synchronously, at this time, the mud inlet frame 5 and the filter frame 6 are left with a spacing, then the two groups of sealing plates 26 are driven to approach each other by the hydraulic telescopic pump 24, and then the mud inlet frame 5 and the filter frame 6 are compressed by the two groups of sealing plates 26, so that the filter frame 6 is inserted into the sealing groove 7 on both sides, and when the filter frame 6 is inserted into the mud inlet frame 5, the mud inlet frame 5 compresses the top block 11, the top block 11 compresses the first spring 13, and the mounting frame 9 is driven to extend out of the telescopic groove 8 through the connecting rod 12, so that the space between the two groups of filter screens 14 is increased, and then the plurality of mud inlet frames 5 and filter frames 6 are extruded and closed to be sealed, at this time, the mud pump 19 is arranged to pump the mud, and the mud is pumped into the mud supply pipe 16, and then enters the mud inlet frame 5 along the hose and the mud inlet 18, so that the mud is continuously supplied, and the water in the water suction pipe 20 is pumped by the vacuum pump 23, and the water in the filter frame 6 is vacuum pumped through the hose, so that negative pressure is generated on both sides of the filter screen 14 in the filter frame 6, at this time, pressure difference is generated on both sides of the filter screen 14, and the water in the sludge on the other side of the filter screen 14 is pressurized and filtered through the arrangement of the pressure difference, and the filtered sludge is attached to the surface of the filter screen 14;

[0025] When the water in the mud is filtered, the two sets of sealing plates 26 are driven away from each other by the hydraulic telescopic pump 24, at this time, the mud inlet frame 5 and the filter frame 6 are expanded synchronously under the push of the second spring 15, in this process, the top block 11 loses compression, the first spring 13 pushes the top block 11 to extend in the spring slot 10, the top block 11 drives the mounting frame 9 to retract into the telescopic slot 8 through the connecting rod 12, the mounting frame 9 drives the two sets of filter screens 14 to move close to each other, at this time, the sludge attached to the two sets of filter screens 14 in the mud inlet frame 5 is separated from each other under the action of the pulling force generated by the movement of the filter screens 14, and in the process of the movement of the filter screens 14 in the telescopic slot 8, the filter screens 14 will vibrate, thereby shaking off the sludge attached to the filter screens 14, and under the action of gravity, the sludge falls into the sludge discharge slot 25, and then is discharged along the sludge discharge slot 25.

[0026] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

[0027] The above only describes the preferred embodiments of the present application and does not limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A filter press device for sludge treatment, comprising a first mounting plate and a second mounting plate, characterized in that, A plurality of groups of fixing rods are fixedly connected between the first mounting plate and the second mounting plate, a plurality of groups of sliding sleeves are slidably connected on each group of fixing rods, a plurality of groups of mud inlet frames and filter frames are arranged between the first mounting plate and the second mounting plate, the mud inlet frames and the filter frames are arranged in an interlaced manner, a second spring is arranged on the fixing rod between two adjacent groups of sliding sleeves, sealing grooves are arranged on the two sides of the mud inlet frame, the sealing grooves and the filter frame are slidably sealed, expansion grooves are arranged on the two sides of the filter frame, a mounting frame is slidably connected in the expansion groove, a filter screen is mounted in the mounting frame, spring grooves are arranged on the two sides of the filter frame, a top block is slidably connected in the spring groove, one end of a connecting rod is fixedly connected to the top block, the other end of the connecting rod passes through the filter frame and is fixedly connected to the mounting frame, a first spring is arranged in the spring groove and sleeved on the connecting rod, and four groups of spring grooves on the two sides of each filter frame are symmetrically arranged on four groups of frame edges of the filter frame.

2. The filter press device for sludge treatment according to claim 1, wherein A hydraulic telescopic pump is fixedly connected to the first mounting plate, a group of sealing plates are fixedly connected to the output shaft of the hydraulic telescopic pump, another group of sealing plates are fixedly connected to the second mounting plate, and the sealing plates and the filter frame are slidably sealed.

3. The filter press according to claim 1, wherein A mud supply pipe is fixedly connected between the first mounting plate and the second mounting plate, a plurality of groups of first connecting heads are arranged on the mud supply pipe, a mud inlet is arranged on the outer wall of the mud inlet frame, and the mud inlet and the first connecting head are connected through a hose.

4. The filter press according to claim 3, wherein A mud pump is fixedly connected to the second mounting plate, and the mud pump is connected to the mud supply pipe.

5. The filter press according to claim 1, wherein A water suction pipe is fixedly connected between the first mounting plate and the second mounting plate, a plurality of groups of second connecting heads are arranged on the water suction pipe, a water outlet is arranged on the outer wall of the filter frame, the water outlet is arranged between two groups of filter screens, and the water outlet and the second connecting head are connected through a hose.

6. The filter press according to claim 5, wherein A vacuum pump is fixedly connected to the second mounting plate, and the vacuum pump is connected to the water suction pipe.

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