Automatic discharging auxiliary device of plate-and-frame filter press

Abstract

The utility model relates to the technical field of unloading of plate-and-frame filter presses, and provides an automatic unloading auxiliary device of a plate-and-frame filter press, which comprises a plate pulling device and a purging device fixedly connected with the plate pulling device. By arranging the angle adjusting device, the angle between the nozzle and the filter frame can be adjusted, the angle is locked through the angle locking device, the angle between the nozzle and the filter frame is locked, the stability of the air nozzle is kept, the problem that the blowing angle of the air nozzle is difficult to adjust in the prior art is solved, and therefore the blowing effect is greatly improved; and the filter cake can fall off more thoroughly. According to the filter press, the purging device is fixedly connected with the plate pulling device, purging can be performed when the plate pulling device pulls the filter frame open, automatic purging operation of the purging device when the filter frame is separated is realized, and the overall operation efficiency of the filter press is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plate and frame filter press unloading, in particular to an automatic unloading auxiliary device for a plate and frame filter press. Background Art

[0002] As a highly efficient solid-liquid separation device, the plate and frame filter press is widely used in a variety of industries, including municipal environmental protection, food and beverage, chemical and pharmaceutical, petrochemical, printing and dyeing, and papermaking. Its primary function is to trap solid particles in mud through the filter cloth, forming a filter cake, thereby achieving solid-liquid separation. The mud cake filtered by the filter press has a high solid content and excellent separation performance. It can effectively treat a variety of muds and sludges, such as piling site mud, shield machine mud, oilfield drilling mud, river sludge, municipal pipeline sludge, and sewage treatment plant sludge.

[0003] The working principle is that a hydraulic system presses the filter frame tightly together to form a sealed filter chamber. The slurry to be processed is then pumped into the filter chamber via a feed pump. Under the action of pressure, solid particles in the slurry are trapped by the filter cloth, forming a filter cake, while the filtrate is discharged through the filter cloth, thus achieving solid-liquid separation. After filtration, the filter frame is opened using a plate puller to remove the filter cake. In the process of unloading the filter cake, incomplete unloading is often caused by reasons such as incomplete filter cake formation. At this time, manual unloading is often required, which is time-consuming and labor-intensive. After searching, the patent with publication number CN 221309657 U provides a purging device for a plate and frame filter press. By setting a screw rod, a motor, a moving block, an air inlet pipe, an air outlet pipe and an air nozzle, the motor operates to move the moving block and the equipment frame back and forth, changing the position of the air nozzle. The gas ejected by the air nozzle sweeps the filter cake on the surface of the filter cloth on the filter frame, causing the filter cloth to vibrate, reducing the contact area between the filter cake and the filter cloth, and the impact force brought by the air flow causes the filter cake to be spread apart, reducing the adhesion, and achieving a better cleaning effect. However, this patent still has the following shortcomings: the air nozzle position can only move back and forth along the filter frame, the air nozzle purging angle is difficult to adjust, resulting in limited purging effect, and this patent needs to wait until the filter frame is separated before purging, which is inefficient.

[0004] Therefore, it is urgent to develop an automatic unloading auxiliary device for plate and frame filter press to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the deficiencies of the prior art and to provide an automatic unloading auxiliary device for a plate and frame filter press to improve the unloading effect of the filter press.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An automatic unloading auxiliary device for a plate-frame filter press, comprising a plate puller and a purge device fixedly connected to the plate puller;

[0008] The purging device includes a gantry fixedly connected to the plate puller, an angle adjustment device arranged on the top of the gantry, a nozzle mounted on the angle adjustment device, an air pipe connected to the nozzle, and a clamp connecting the air pipe and the gantry. Flexible material is used at the connection between the air pipe and the nozzle, and there are at least two groups of nozzles symmetrically arranged along the gantry.

[0009] Preferably, the angle adjustment device includes a fixing seat, a nozzle is sleeved in the fixing seat, the fixing seat is rotatably connected to the gantry, and an angle locking device is provided between the fixing seat and the gantry.

[0010] Preferably, the angle locking device includes a fixed lifting ear fixedly connected to the gantry, a rotating lifting ear connecting the fixed lifting ear and the fixed seat, a rotating bolt connecting the fixed lifting ear and the rotating lifting ear, an angle adjustment lifting ear arranged below the fixed lifting ear, a fixed lifting ear connecting the angle adjustment lifting ear and the fixed seat, and an adjusting bolt connecting the angle adjustment lifting ear and the fixed lifting ear, the angle adjustment lifting ear is arc-shaped, and the angle adjustment lifting ear is provided with a plurality of holes.

[0011] Preferably, a latch is provided at one end of the adjusting bolt.

[0012] Preferably, the air pipe is connected to the nozzle via an air delivery hose.

[0013] Preferably, the angle between the nozzle and the filter frame is adjustable in a range of 10°-45°.

[0014] Preferably, the gap between the nozzles is 30-40 cm.

[0015] The utility model discloses an automatic unloading auxiliary device for a plate and frame filter press, which has the following beneficial effects.

[0016] First, by setting an angle adjustment device, the angle between the nozzle and the filter frame can be adjusted. The angle is locked by the angle locking device to lock the angle between the nozzle and the filter frame, thereby maintaining the stability of the air nozzle. This solves the problem of difficulty in adjusting the air nozzle blowing angle in the existing technology, thereby greatly improving the blowing effect and ensuring that the filter cake falls off more thoroughly.

[0017] Secondly, the purging device is fixedly connected to the plate puller, so purging can be performed when the plate puller pulls open the filter frame, realizing that the purging device automatically performs the purging operation when the filter frames are separated, which significantly improves the overall operating efficiency of the filter press. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the cooperation between the automatic unloading auxiliary device and the filter frame in the embodiment.

[0019] Figure 2Schematic diagram of the three-dimensional structure of the automatic unloading auxiliary device in the embodiment.

[0020] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0021] Figure 4 Schematic diagram of the installation position of the automatic unloading auxiliary device and the filter press in the embodiment.

[0022] In the accompanying drawings: 1. filter press; 2. guide rail; 3. plate puller; 4. purge device; 41. gantry; 42. angle adjustment device; 421. fixing seat; 422. fixed lifting eye; 4222. rotating lifting eye; 4223. rotating bolt; 4224. angle adjustment lifting eye; 4225. fixed lifting eye; 4226. adjusting bolt; 4227. latch; 43. nozzle; 44. air pipe; 441. air supply hose; 45. clamp; 5. filter frame. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] The utility model discloses an application scenario of an automatic unloading auxiliary device for a plate and frame filter press in performing auxiliary unloading.

[0026] Reference Figure 1 and Figure 4An automatic unloading auxiliary device for a plate and frame filter press includes a plate puller 3 and a purge device 4 welded to the plate puller 3; the purge device 4 includes a gantry 41 fixedly connected to the plate puller 3, an angle adjustment device 42 provided on the top of the gantry 41, a nozzle 43 sleeved on the angle adjustment device 42, an air pipe 44 connected to the nozzle 43, and a clamp 45 connecting the air pipe 44 to the gantry 41. The connection between the air pipe 44 and the nozzle 43 is made of flexible material. There are at least two groups of nozzles 43 symmetrically arranged along the gantry 41, and the gap between the nozzles 43 is between 30-40 cm. In order to avoid deformation of the plate puller 3 caused by welding, which may cause obstruction when pulling the plate, a pulley block can also be provided at the bottom of the gantry 41, and a connecting block can be welded to the bottom of the gantry 41 on one side of the plate puller 3 to prevent deformation of the plate puller 3. The plate puller 3 and the gantry 41 are movably arranged on the guide rail 2 for the plate puller 3 on the filter press 1.

[0027] Specific reference Figure 3 The angle adjustment device 42 includes a fixed seat 421, which is rectangular. The nozzle 43 is clamped inside the fixed seat 421, and the bottom of the nozzle 43 passes through the fixed seat 421. The fixed seat 421 and the gantry 41 are rotatably connected through lifting ears and bolts. An angle locking device is welded between the fixed seat 421 and the gantry 41.

[0028] The angle locking device includes a fixed lifting eye 422 fixedly connected to the gantry 41, a rotating lifting eye 4222 connecting the fixed lifting eye 422 and the fixed seat 421, a rotating bolt 4223 connecting the fixed lifting eye 422 and the rotating lifting eye 4222, an angle adjustment lifting eye 4224 provided below the fixed lifting eye 422, a fixed lifting eye 4225 connecting the angle adjustment lifting eye 4224 and the fixed seat 421, and a rotating bolt 4223 connecting the fixed lifting eye 422 and the rotating lifting eye 4222. 5, the angle adjustment lug 4224 is arc-shaped, and the angle adjustment lug 4224 is provided with a plurality of holes. The fixed lug 422, the rotating lug 4222, the angle adjustment lug 4224, and the fixed lug 4225 can be selected to have only one group, or two groups can be rotated and arranged symmetrically. The gap between the two groups of rotating lugs 4222 and fixed lugs 4225 is greater than the gap between the two groups of fixed lugs 422 and angle adjustment lugs 4224. By adjusting the connection between the fixed lug 4225 and the different holes on the angle adjustment lug 4224, the angle between the nozzle 43 and the filter frame 5 can be controlled. In this embodiment, three hole positions are provided on the angle adjustment lug 4224, and the corresponding angles between the nozzle 43 and the filter frame 5 are 11°, 27°, and 42°. The specific angle can be adjusted by changing the hole position, but when changing the hole position, the rotation trajectory of the fixed lug 4225 needs to be met. To reduce this requirement, the apertures on the angle adjustment lug 4224 and the fixed lug 4225 can be set to different sizes, which can also increase the speed of angle adjustment. In order to further increase the speed of angle adjustment, a pin 4227 is provided at one end of the adjusting bolt 4226.

[0029] In this embodiment, to ensure the angle adjustment range of the nozzle 43, the air pipe 44 is connected to the nozzle 43 through an air hose 441. To ensure the purging effect of the nozzle 43, the gap between the nozzles 43 is 40 cm. Four groups of nozzles 43 are provided on the gantry 41. In order to enhance the stability of the gantry 41, some reinforcing ribs are provided on the gantry 41. The plate puller 3 and filter press 1 involved in this embodiment are both specific models of existing equipment. The filter press 1 is a Z / 800-U programmable automatic box filter press. Generally speaking, programmable automatic box filter presses are currently equipped with a plate puller 3. If the filter press 1 is not equipped with a plate puller 3, the plate puller 3 can be an XZ800-1250 automatic plate puller trolley.

[0030] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Replacements may include partial structures, devices, or method steps, or they may be complete technical solutions. Equivalent replacements or modifications based on the technical solution and its concept of the present invention are also encompassed within the scope of protection of the present invention.

Claims

1. An automatic unloading auxiliary device for a plate and frame filter press, characterized in that: The invention comprises a plate puller and a purge device (4) fixedly connected to the plate puller (3); the purge device (4) comprises a gantry (41) fixedly connected to the plate puller (3), an angle adjustment device (42) arranged on the top of the gantry (41), a nozzle (43) sleeved with the angle adjustment device (42), an air pipe (44) connected to the nozzle (43), and a clamp (45) connecting the air pipe (44) and the gantry (41); a flexible material is used at the connection between the air pipe (44) and the nozzle (43); and the nozzles (43) are at least two groups of nozzles (43) symmetrically arranged along the gantry (41).

2. The automatic unloading auxiliary device for a plate and frame filter press according to claim 1, characterized in that: The angle adjustment device (42) comprises a fixing seat (421), a nozzle (43) is sleeved inside the fixing seat (421), the fixing seat (421) is rotatably connected to the gantry (41), and an angle locking device is provided between the fixing seat (421) and the gantry (41).

3. The automatic unloading auxiliary device for a plate and frame filter press according to claim 2, characterized in that: The angle locking device comprises a fixed-point lifting lug (422) fixedly connected to the gantry (41), a rotating lifting lug (4222) connecting the fixed-point lifting lug (422) and the fixed seat (421), a rotating bolt (4223) connecting the fixed-point lifting lug (422) and the rotating lifting lug (4222), an angle adjustment lifting lug (4224) arranged below the fixed-point lifting lug (422), a fixed lifting lug (4225) connecting the angle adjustment lifting lug (4224) and the fixed seat (421), and an adjusting bolt (4226) connecting the angle adjustment lifting lug (4224) and the fixed lifting lug (4225). The angle adjustment lifting lug (4224) is arc-shaped and is provided with a plurality of holes.

4. The automatic unloading auxiliary device for a plate and frame filter press according to claim 3, characterized in that: One end of the adjusting bolt (4226) is provided with a latch (4227).

5. The automatic unloading auxiliary device for a plate and frame filter press according to claim 1, characterized in that: The air pipe (44) is connected to the nozzle (43) via an air delivery hose (441).

6. The automatic unloading auxiliary device for a plate and frame filter press according to claim 1, characterized in that: The angle between the nozzle (43) and the filter frame (5) can be adjusted in the range of 10°-45°.

7. The automatic unloading auxiliary device for a plate and frame filter press according to claim 1, characterized in that: The gap between the nozzles (43) is 30-40 cm.

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