CN219231540U - Plate-frame mud filter press with help unloading mechanism - Google Patents

Abstract

The utility model discloses a plate and frame mud filter press with an unloading aid mechanism, which comprises a frame and a plurality of plate frames installed on the frame, a bottom compartment is arranged below the plate frame and the A lower fixed pulley is fixed in the bottom compartment, and an upper fixed pulley is arranged on the top between adjacent said plate frames, and each said lower fixed pulley and each said upper fixed pulley are in the form of a parabola. The filter cloth, the part of the filter cloth located within the height range of the cavity of the plate frame is closely attached to the inner wall of the cavity of the plate frame. The utility model has the advantages that the plate and frame mud filter press has simple structure and convenient operation, and the dehydrated and compacted mud cake can be quickly unloaded from the plate and frame by stretching the added filter cloth.

Description

A plate and frame mud filter press with an unloading aid mechanism

technical field

The utility model relates to the technical field of filter press equipment, in particular to a plate and frame mud filter press with an unloading aid structure.

Background technique

The mud-water shield technology is to stabilize the excavation surface by pressurizing muddy water or mud. When the shield is advancing, the soil and sand cut off by the rotating cutter head are stirred by the stirring device to form high-concentration mud, which is sent to the ground mud-water separation system by fluid transportation. . At present, the mud-water separation treatment of high-concentration mud generally adopts a plate-and-frame mud filter press. The plate-and-frame mud filter press squeezes the mud, and the water in the mud is squeezed by the extrusion of the adjacent plate and frame. After being collected, the sludge in the mud is extruded into the cavity of the plate frame to form a mud cake. The extruded mud cake is attached to the plate frame and is not easy to be removed. It needs to be manually removed by the construction personnel, which is cumbersome. Time-consuming.

Contents of the invention

The purpose of this utility model is to provide a plate and frame mud filter press with an unloading aid structure according to the shortcomings of the above-mentioned prior art. The plate and frame mud filter press is installed between adjacent plate frames , Set the pulley and wear the filter cloth, so that after the mud is pressed into a mud cake, the mud cake can be quickly dropped from the plate frame by stretching the filter cloth.

The utility model goal is realized by the following technical solutions:

A plate and frame mud filter press with an unloading aid mechanism, characterized in that the plate and frame mud filter press includes a frame and several plate frames installed on the frame, and the bottom of the plate frame is set There is a bottom compartment and a lower fixed pulley is fixed in the bottom compartment, and an upper fixed pulley is arranged on the top between the adjacent plate frames, and there are vertically threaded between each of the lower fixed pulleys and each of the upper fixed pulleys. Continuous filter cloth.

A top compartment is arranged above the plate frame, one end of the top compartment is closed and the other end is open, and the upper fixed pulley is fixed on the top between the adjacent plate frames through a wheel frame. One end of the frame is a fixed rod and fixed on the closed end plate of the top compartment on one side, the other end of the wheel frame is a spring and the spring extends outward from the top compartment on the other side fixed on the upper fixed pulley.

The frame includes a base, a slide rail arranged on the base, a hydraulic pushing structure arranged at one end of the slide rail, and a thrust plate arranged at the other end of the slide rail, each of the plate frames Outwardly protruding support frames are arranged on the two outer side walls of the frame, and the plate frame is slidably mounted on the slide rail through the support frames.

Each of the plates is arranged longitudinally along the slide rails, the ones at both ends are end plates, and the ones between the two end plates are standard plates; the cavity of the end plates is passed through a A vertical partition with through holes is divided into a filter press cavity and a clean water cavity; the cavity of the standard plate frame is divided into a filter press cavity, a clean water cavity, and a filter press cavity by two vertical partitions with through holes; A grouting pipe and a clean water outflow pipe are respectively arranged on the side wall of the plate frame, the grouting pipe is connected to the filter press chamber, and the clean water outflow pipe is connected to the clean water chamber.

The filter cloth is arranged in a parabolic shape between each of the lower fixed pulleys and each of the upper fixed pulleys, and the part of the filter cloth located within the height range of the plate frame cavity is closely attached to the cavity of the plate frame on the wall.

The utility model has the advantages that the plate and frame mud filter press has simple structure and convenient operation, and the dehydrated and compacted mud cake can be quickly unloaded from the plate and frame by stretching the added filter cloth.

Description of drawings

Fig. 1 is the structural representation of the plate-and-frame mud filter press with unloading aid mechanism in the utility model;

Fig. 2 is the A-A schematic diagram in Fig. 1 of the utility model;

Fig. 3 is a schematic diagram of pressing mud into a mud cake by the plate frame of the utility model.

Detailed ways

The features of the present utility model and other relevant features are further described in detail below in conjunction with the accompanying drawings through the embodiments, so as to facilitate the understanding of those skilled in the art:

As shown in Figure 1-3, the marks in the figure are: plate frame 1, top compartment 2, bottom compartment 3, base 4, support frame 5, slide rail 6, clear water outflow pipe 7, water collection tank 8, grouting Pipe 9, thrust plate 10, spring 11, upper fixed pulley 12, lower fixed pulley 13, filter cloth 14, clear water chamber 15, hydraulic push mechanism 16, rear seat plate 17, fixed rod 18, mud cake 19, vertical partition Plate 20, push plate 21.

Embodiment: As shown in Figures 1-3, this embodiment specifically relates to a plate and frame mud filter press with an unloading assistance mechanism. The plate and frame mud filter press includes a frame and several longitudinally spaced The plate frame 1 on the frame, an unloading aid mechanism composed of filter cloth 13, lower fixed pulley 13 and upper fixed pulley 12 is added between adjacent plate frames 1, and the dehydrated and compacted mud is stretched by stretching the filter cloth 13 Cake 19 is unloaded and come off from plate frame 1 fast.

As shown in Figures 1-3, the frame in this embodiment includes a base 4, on which two slide rails 6 are arranged in parallel in the longitudinal direction, and several plates are arranged at longitudinal intervals between the two slide rails 6 Frame 1 , supporting frames 5 are provided on both side walls of each plate frame 1 , and the supporting frame 5 is matched and installed on the slide rail 6 to realize the sliding movement of each plate frame 1 on the slide rail 6 . A thrust plate 10 is installed at one end of the slide rail 6 to provide limit thrust for the plate frame 1 subjected to the push action; a hydraulic push mechanism 16 is installed at the other end of the slide rail 6, and the hydraulic push mechanism 16 adopts It is one or more hydraulic jacks, a push plate 21 is fixed at the front end, and the plate frame 1 can be pushed evenly and steadily through the large-area push plate 21, and a rear seat plate 17 is fixed at the rear end , the rear seat plate 17 is fixed on the base 4, which can provide a counter force basis for the hydraulic pushing mechanism 16.

As shown in Figure 1-3, the plate frames 1 arranged in the longitudinal direction are divided into two types, the plate frames arranged at both ends are end plate frames, and the plate frames 1 arranged between the two end plate frames are standard plates frame. The end plate frame located at the front end is fixed with the thrust plate 10, and the end plate frame located at the rear end is fixed with the push plate 21, and the push or retraction of the hydraulic push mechanism 16 can drive each plate frame 1 on the slide. Move back and forth thereupon on rail 6.

As shown in Figure 1-3, the main body of the end plate frame is formed by splicing four upper, lower, left and right steel plates to form a rectangular frame, and the end face of the end plate frame is fixed with the thrust plate 10 or the thrust plate 21 Set the end face to be closed, while the other end face is in an open state. In the cavity of the end plate frame, a vertical partition 20 with a through hole is divided into a press filter cavity and a clean water cavity 15, wherein a filter cloth 14 is arranged in the filter press cavity for the pressure filtration of the mud to finally The mud cake 19 is obtained, and the clear water chamber 15 is used to collect and discharge the clear water filtered out from the filter press chamber; grouting pipes 9 and clear water outflow pipes 7 are respectively arranged on the side wall surfaces of the end plate frames, The slurry pipe 9 is connected to the aforementioned filter press chamber to input the mud, and the clean water outflow pipe 7 is connected to the clean water chamber 15 to discharge the clean water from the press filter to the sump 8 provided under the clean water outflow pipe 7 .

As shown in Figure 1-3, the main body of the standard plate frame is also spliced by four steel plates on the upper, lower, left, and right sides to form a rectangular frame. The vertical dividing plate 20 of hole separates its cavity into a filter press cavity, a clear water cavity 15, and a filter press cavity, and there are three chambers in total. A grouting pipe 9 and a clean water outflow pipe 7 are respectively arranged on the side wall of the standard plate frame. The grouting pipe 9 is connected to the aforementioned filter press chamber to input mud, and the clean water outflow pipe 7 is connected with the clean water chamber 15. Commonly used to discharge the clear water filtered out into the sump 8 provided below the clear water outflow pipe 7 . According to actual needs, in the press filter cavity formed by combining the standard plate frame and the end plate frame, or in the filter press cavity formed by combining two standard plate frames, ensure that there is a grouting pipe 9 that is Can.

As shown in Figure 1-3, a top compartment 2 and a bottom compartment 3 are respectively provided above and below each plate frame 1, and a lower pulley 13 is fixedly installed in the bottom compartment 3 of each plate frame 1. An upper fixed pulley 12 is fixed between the adjacent plate frames 1 via a wheel frame, and a filter cloth 14 is passed up and down between each lower fixed pulley 13 and the upper fixed pulley 12 to form a parabolic shape, specifically, at the end The filter cloth 14 is fixed on the lower pulley 13 at the plate frame, and the filter cloth 14 extends upward from the bottom compartment 3 to the cavity of the end plate frame and adheres to the inner wall of the cavity, and then extends to the end plate frame On the upper fixed pulley 12 between the standard plate frame, after being guided by the upper fixed pulley 12, it extends downward to the inner wall surface of the cavity of the standard plate frame, and then extends to the lower fixed pulley 13 under the standard plate frame, so reciprocating Until the end of the filter cloth 14 is fixed on the lower pulley 13 below the end plate frame at the other end, thereby forming the aforementioned parabolic filter cloth 14 . The filter cloth 14 can filter water during the extruding process of the plate frame 7, and after the mud cake 19 is formed by dehydrating and compacting the mud, the mud cake 19 can be forced to fall off by stretching the filter cloth 14.

As shown in Figures 2 and 3, the aforementioned wheel frame includes a fixed rod 18 on one side of the upper fixed pulley 12 and a spring 11 on the other side. One end of the top compartment 2 is closed and the other end is open, and the fixed rod 18 is fixedly welded. On the closed end plate of the top compartment 2, and the spring 11 is set in the top compartment 8 and extends outwards and is fixed on the upper fixed pulley 12. When each plate frame 1 is hydraulically pushed, it is located on the adjacent plate The upper fixed pulley 12 between the frames 1 is also pressed into the top compartment 8 of the plate frame 1, and in the case of canceling the jacking force, the spring 11 can reset the upper fixed pulley 12 to The top between the two plate frame 1.

As shown in Figure 1-3, the working method of the plate and frame mud filter press in the present embodiment comprises the following steps:

(1) As shown in Figures 1 and 2, in the initial state, each plate frame 1 is separated by a certain distance, so that the filter cloth 14 in each plate frame 1 cavity is as close as possible to its inner wall surface, that is, the vertical separation on the plate 20; then the frame 1 is pushed close together by the hydraulic pushing mechanism 16 and the pushing plate 21. During the pushing process, the upper fixed pulley 12 is pressed into the top compartment 11, and the adjacent The semi-open filter press chambers between the plates and frames 1 are fitted together to form a completely sealed filter press chamber.

(2) As shown in Figures 2 and 3, inject mud into the filter press chamber through the grouting pipe 9, that is, inject mud into the space enclosed by the filter cloth 14 in the filter press chamber, and the grouting pipe 9 has a relatively high pressure when injecting the mud. High pressure, after the mud is pressurized, the filter cloth 14 is completely attached to the inner wall of the plate frame 1, and as the pressure gradually increases, the water in the mud is filtered out from the filter cloth 14 and passed through the vertical partition. The through hole on the 20 enters the clear water chamber 15, and flows out of the water collection tank 8 through the clear water outflow pipe 7 to collect; finally, a mud cake 19 is formed in the filter press chamber to complete the filter press.

(3) As shown in Figure 1-3, after the filter press is completed to form the mud cake 19, the hydraulic pusher mechanism 16 is controlled to retract to drive the plates and frames 1 to disengage from each other. Due to the high pressure in the filter press, the The mud cake 19 is tightly attached to the plate frame 1, but as the plate frames 1 are separated from each other, the filter cloth 14 also receives a tension force in the longitudinal direction correspondingly, and the tension force can make the filter cloth 14 separate from the plate frame 1. Therefore, the inner wall surface can drive the mud cake 19 to fall off.

The advantages of this embodiment are: the plate and frame mud filter press has a simple structure and is easy to operate, and the dehydrated and compacted mud cake can be quickly unloaded from the plate and frame by stretching the added filter screen.

Claims (5)

1. A plate and frame mud filter press with an unloading aid mechanism, characterized in that the plate and frame mud filter comprises a frame and several plate frames installed on the frame, the plate frame A bottom compartment is arranged below and a lower fixed pulley is fixed in the bottom compartment, and an upper fixed pulley is arranged on the top between adjacent said plate frames, and each said lower fixed pulley and each said upper fixed pulley pass through up and down. There is a continuous filter cloth. 2. A plate and frame mud filter press with an unloading aid mechanism according to claim 1, characterized in that a top compartment is arranged above the plate frame, one end of the top compartment is closed, and the other end is closed. Open, the upper fixed pulley is fixed on the top between the adjacent plate frames through the wheel frame, one end of the wheel frame is a fixed rod and fixed on the closed end plate of the top compartment on one side, The other end of the wheel frame is a spring, and the spring extends outward from the top compartment on the other side and is fixed on the upper fixed pulley. 3. A plate and frame mud filter press with an unloading assistance mechanism according to claim 1, wherein the frame includes a base, a slide rail arranged on the base, and a The hydraulic pushing structure at one end of the slide rail and the thrust plate arranged at the other end of the slide rail, the two outer walls of each of the plate frames are provided with outwardly protruding support frames, and the plate frames can be moved through the support frames. Slidingly installed on the slide rail. 4. A plate and frame mud filter press with an unloading aid mechanism according to claim 3, characterized in that each of the plates is arranged longitudinally along the slide rails, and the end plates at both ends are located at Between the two end plate frames is a standard plate frame; the cavity of the end plate frame is divided into a filter press chamber and a clean water chamber through a vertical partition with a through hole; the standard plate frame The cavity is divided into a press filter cavity, a clean water cavity and a filter press cavity by two vertical partitions with through holes; the side walls of the plate frame are respectively provided with a grouting pipe and a clean water outflow pipe, and the grouting The pipe is connected to the filter press chamber, and the clean water outflow pipe is connected to the clean water chamber. 5. A plate and frame mud filter press with an unloading aid mechanism according to claim 4, wherein the filter cloth is arranged in a parabolic shape between each of the lower fixed pulleys and each of the upper fixed pulleys The part of the filter cloth located within the height range of the cavity of the plate frame is closely attached to the inner wall surface of the cavity of the plate frame.

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