Automatic sludge discharging device of plate and frame dehydrator

Abstract

The utility model discloses an automatic mud unloading device of a plate and frame dehydrator, which comprises a rack, a pressing plate and a thrust plate are mounted on the rack, the pressing plate is slidably connected with the rack, a plurality of groups of filter frames slidably connected with the rack are mounted between the pressing plate and the thrust plate, a hydraulic cylinder is mounted on one side of the rack, and the telescopic end of the hydraulic cylinder is connected with the pressing plate. The sludge discharging device has the beneficial effects that high-pressure pulse airflow can be jetted and output to the filter plate through matching of the pulse air valve and the spray head, so that sludge materials are discharged from the filter plate, the discharging efficiency is improved, and meanwhile, the pulse airflow can drive the filter plate to vibrate by inclining the air outlet end of the spray head towards the filter plate in the filter frame; through the dual effects of vibration and airflow, adhesion of materials on the filter plate is effectively reduced, the discharging time is shortened, meanwhile, manual intervention is effectively saved, abrasion of equipment caused by frequent operation and material adhesion is reduced, and the service life of the equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plate and frame dewaterer, especially to an automatic mud unloading device of plate and frame dewaterer. BACKGROUND

[0002] The plate and frame dewaterer is a solid-liquid separation equipment widely used in sludge dewatering, mineral processing, chemical industry and other fields. Its core principle is to squeeze the liquid in the material through mechanical pressure to realize efficient separation of solid and liquid. In sewage treatment plants and sludge treatment and disposal plants, the plate and frame dewaterer is widely used in the dewatering process of sludge. It separates liquid and solid mainly through the plate and frame structure, has the advantages of large filtering driving force, high solid content of filter cake, clear filtrate, high solid recovery rate, and low consumption of conditioning chemicals.

[0003] Some existing plate and frame dewaterers often have the problem that the sludge adheres to the plate and frame during unloading, resulting in difficult unloading, the need for other tools to assist in unloading, complicated operation, increased equipment wear and tear, and reduced production efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the shortcomings of some existing plate and frame dewaterers that often have the problem that the sludge adheres to the plate and frame during unloading, resulting in difficult unloading, the need for other tools to assist in unloading, complicated operation, increased equipment wear and tear, and reduced production efficiency, and provides an automatic mud unloading device of plate and frame dewaterer.

[0005] The utility model realizes the purpose through the following technical scheme: an automatic mud unloading device of plate and frame dewaterer, comprising a rack, a pressing plate and a thrust plate installed on the rack, the pressing plate being slidably connected with the rack, a plurality of filter frames slidably connected with the rack being installed between the pressing plate and the thrust plate, a hydraulic cylinder being installed on one side of the rack, the extension end of the hydraulic cylinder being connected with the pressing plate;

[0006] A gas delivery pipe corresponding to the filter frame is installed on the rack, a pulse air valve connected with the gas delivery pipe being installed on both sides of the filter frame, a spray head being installed at equal distances on both inner side walls of the filter frame, the gas inlet end of the spray head being connected with the gas outlet end of the pulse air valve, and the gas outlet end of the spray head being obliquely arranged towards the filter plate in the filter frame;

[0007] The pulse air valve and the spray head are arranged to spray high-pressure pulse airflow to the filter plate, thereby unloading the sludge material from the filter plate and improving the unloading efficiency. The oblique arrangement of the gas outlet end of the spray head towards the filter plate in the filter frame enables the pulse airflow to vibrate the filter plate. The double action of vibration and airflow effectively reduces the adhesion of the material on the filter plate and shortens the unloading time. The manual cleaning intervention is effectively saved, the wear and tear of the equipment caused by frequent operation and material adhesion are reduced, and the service life of the equipment is prolonged.

[0008] Further, the technical scheme is that the insertion slot is arranged between the nozzle and the filter plate, the insertion plate is arranged on the thrust plate and the filter frame, and the insertion plate and the insertion slot are matched, so that the insertion plate is inserted into the insertion slot to protect the nozzle during the pressure filtration, and the filtrate is prevented from entering the nozzle.

[0009] Further, the technical scheme is that the spring type telescopic hose is arranged between the gas conveying pipe and the pulse gas valve, and the spring type telescopic hose has certain telescopic performance, so that the spring type telescopic hose is automatically contracted with the movement of the filter frame on the rack, and the smoothness of the equipment operation is ensured.

[0010] Further, the technical scheme is that the drainage pipe is arranged at the lower part of the filter frame, the water collecting tank corresponding to the water outlet end of the drainage pipe is arranged at the two sides of the rack, the water collecting tank is arranged for drainage, and the material collecting bin is arranged in the rack to collect the falling materials.

[0011] Further, the technical scheme is that the vibration generator is arranged at the upper part of the filter frame, the vibration generator is arranged to transmit vibration to the filter plate through the filter frame, and the unloading efficiency of the filter plate is further improved.

[0012] Further, the technical scheme is that a plurality of slide rods are arranged on the rack, the slide sleeve is slidably connected with the slide rod and arranged on the filter frame, the compression spring is arranged on one side of the slide sleeve, and the push block is arranged on the side, away from the slide sleeve, of the compression spring, so that the adjacent filter frames are quickly separated during unloading through the cooperation of the compression spring and the push block, and the unloading efficiency is improved.

[0013] The utility model has the advantages that: the pulse gas valve and the nozzle are matched to spray and output high-pressure pulse airflow to the filter plate, so that the sludge material is unloaded from the filter plate, the unloading efficiency is improved, the nozzle outlet end is inclined towards the filter plate in the filter frame, the pulse airflow drives the filter plate to vibrate, the double effects of vibration and airflow effectively reduce the adhesion of the material on the filter plate, shorten the unloading time, effectively save manual intervention, reduce the abrasion of the equipment caused by frequent operation and material adhesion, and prolong the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is a filter frame structure sectional view schematic view of the utility model;

[0016] Figure 3 It is a filter frame structure sectional view schematic view of the utility model; Figure 2 It is an enlarged schematic view of the structure of A;

[0017] Figure 4The utility model discloses a filter frame overhead view sectional view schematic diagram.

[0018] In the figure, 1, frame; 2, compression plate; 3, thrust plate; 4, filter frame; 5, gas delivery pipe; 6, spring type flexible hose; 7, pulse air valve; 8, vibration generator; 9, drain pipe; 10, water collecting tank; 11, sliding sleeve; 12, slide bar; 13, compression spring; 14, push block; 15, plugboard; 16, slot; 17, filter plate; 18, shower head; 19, hydraulic cylinder. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the following will combine the drawings in the utility model embodiment to clearly and completely describe the technical scheme in the utility model embodiment. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawings can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0021] It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict.

[0022] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0023] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, or the orientation or positional relationship commonly understood by those skilled in the art, only for the convenience of describing the utility model and simplifying the description, and not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1-4 As shown, an automatic sludge unloading device for a plate and frame dewatering machine includes a frame 1, a pressing plate 2 and a thrust plate 3 installed on the frame 1, the pressing plate 2 being slidably connected to the frame 1, a plurality of filter frames 4 being slidably connected to the frame 1 between the pressing plate 2 and the thrust plate 3, and a hydraulic cylinder 19 being installed on one side of the frame 1, the telescopic end of the hydraulic cylinder 19 being connected to the pressing plate 2.

[0026] A gas delivery pipe 5 corresponding to the filter frame 4 is installed on the frame 1. Pulse gas valves 7 connected to the gas delivery pipes 5 are installed on both sides of the filter frame 4. Spray nozzles 18 are installed on both inner side walls of the filter frame 4 at equal intervals. The air inlet end of the spray nozzle 18 is connected to the air outlet end of the pulse gas valve 7. The air outlet end of the spray nozzle 18 is inclined toward the filter plate 17 inside the filter frame 4.

[0027] By setting the pulse air valve 7 and the nozzle 18 in conjunction, a high-pressure pulse airflow can be sprayed onto the filter plate 17, thereby unloading the sludge material from the filter plate 17 and improving the unloading efficiency. At the same time, setting the air outlet of the nozzle 18 to be tilted towards the filter plate 17 inside the filter frame 4 can cause the pulse airflow to drive the filter plate 17 to vibrate. Through the dual action of vibration and airflow, the adhesion of material on the filter plate 17 is effectively reduced, the unloading time is shortened, and manual intervention is effectively saved. This reduces the wear and tear on the equipment caused by frequent operation and material adhesion, and extends the service life of the equipment.

[0028] A slot 16 is provided between the nozzle 18 and the filter plate 17. Insert plates 15 that are compatible with the slot 16 are installed on the thrust plate 3 and the filter frame 4. By setting the insert plates 15 and the slot 16 to cooperate, the insert plates 15 can be inserted into the slot 16 to protect the nozzle 18 during the filtration process and prevent the filtrate from entering the nozzle 18.

[0029] The gas delivery pipe 5 and the pulse gas valve 7 are connected by a spring-loaded telescopic hose 6. The spring-loaded telescopic hose 6 has a certain telescopic performance and can automatically retract as the filter frame 4 moves on the frame 1, ensuring the smooth operation of the equipment.

[0030] Drainage pipes 9 are installed on the lower part of both sides of the filter frame 4, and water collection tanks 10 corresponding to the water outlet of the drainage pipes 9 are installed on both sides of the frame 1. The water collection tanks 10 are set up for drainage, and a material collection bin is set up inside the frame 1 to collect the falling material.

[0031] A vibration generator 8 is installed on the upper part of the filter frame 4. The vibration generator 8 transmits vibration to the filter plate 17 through the filter frame 4, thereby further improving the unloading efficiency of the filter plate 17.

[0032] Multiple sets of slide rods 12 are installed on the frame 1. A slide sleeve 11 that is slidably connected to the slide rods 12 is installed on the filter frame 4. A compression spring 13 is installed on one side of the slide sleeve 11. A push block 14 is installed on the side of the compression spring 13 away from the slide sleeve 11. By setting the compression spring 13 and the push block 14 to cooperate, adjacent filter frames 4 can be quickly separated during unloading, thereby improving unloading efficiency.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic sludge unloading device for a plate and frame dewatering machine, comprising a frame (1), wherein a clamping plate (2) and a thrust plate (3) are mounted on the frame (1), the clamping plate (2) being slidably connected to the frame (1), characterized in that: Multiple sets of filter frames (4) that are slidably connected to the frame (1) are installed between the clamping plate (2) and the thrust plate (3). A hydraulic cylinder (19) is installed on one side of the frame (1), and the telescopic end of the hydraulic cylinder (19) is connected to the clamping plate (2). The frame (1) is equipped with a gas delivery pipe (5) corresponding to the filter frame (4). Both sides of the filter frame (4) are equipped with pulse air valves (7) connected to the gas delivery pipes (5). Both inner walls of the filter frame (4) are equipped with nozzles (18) arranged at equal intervals. The air inlet of the nozzle (18) is connected to the air outlet of the pulse air valve (7). The air outlet of the nozzle (18) is inclined toward the filter plate (17) inside the filter frame (4).

2. The automatic sludge unloading device for a plate and frame dewatering machine according to claim 1, characterized in that: A slot (16) is provided between the nozzle (18) and the filter plate (17), and insert plates (15) that are compatible with the slot (16) are installed on the thrust plate (3) and the filter frame (4).

3. The automatic sludge unloading device for a plate and frame dewatering machine according to claim 1, characterized in that: The gas delivery pipe (5) and the pulse gas valve (7) are connected by a spring-loaded telescopic hose (6).

4. The automatic sludge unloading device for a plate and frame dewatering machine according to claim 1, characterized in that: Drain pipes (9) are installed on the lower part of both sides of the filter frame (4), and water collection tanks (10) corresponding to the water outlet of the drain pipes (9) are installed on both sides of the frame (1).

5. The automatic sludge unloading device for a plate and frame dewatering machine according to claim 1, characterized in that: A vibration generator (8) is installed on the upper part of the filter frame (4).

6. The automatic sludge unloading device for a plate and frame dewatering machine according to claim 1, characterized in that: Multiple sets of slide rods (12) are installed on the frame (1), and a slide sleeve (11) that is slidably connected to the slide rods (12) is installed on the filter frame (4). A compression spring (13) is installed on one side of the slide sleeve (11), and a push block (14) is installed on the side of the compression spring (13) away from the slide sleeve (11).

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