CN211935741U - Plate-frame filter press for solid-liquid separation of drilling waste treatment - Google Patents

Abstract

A plate-frame filter press for solid-liquid separation of drilling waste treatment belongs to the technical field of solid-liquid separation. The device comprises an extrusion mechanism, a top cover and a solid-liquid separation piece; the extrusion mechanism comprises a first pressing plate, a second pressing plate, side plates and a penetrating rod, wherein a guide groove for accommodating the penetrating rod is formed in each side plate, the penetrating rod is arranged in the guide groove, the penetrating rod is fixedly or elastically connected with the first pressing plate, the side plates are fixedly connected to two sides of the second pressing plate respectively, the penetrating rod is matched with the corresponding guide groove to form a moving pair, and the side surfaces, adjacent to the first pressing plate, of the side plates and the penetrating rod can form a first demolding surface; the side plate, the first pressing plate and the second pressing plate are enclosed to form a pull-type material frame, the solid-liquid separator is used for closing and opening a lower opening of the pull-type material frame, and the top cover is used for closing an upper opening of the pull-type material frame. The mud cake can be conveniently and quickly taken out, and the filter pressing efficiency is high.

Description

Plate-frame filter press for solid-liquid separation of drilling waste treatment

Technical Field

The utility model relates to a solid-liquid separation technical field, concretely relates to drilling waste handles plate and frame pressure filter for solid-liquid separation.

Background

When drilling, the drilling assistant and the mud block are mixed to form mud, and then the mud is pressed into mud cakes to further process the mud cakes and filtrate in order to reduce the harm of the drilling assistant to the environment after the mud flows out. The equipment for pressing the slurry into the mud cake in the prior art comprises a plate and frame filter press and a belt press filter, wherein the belt press filter has high working efficiency, but is different from the plate and frame filter press: firstly, the belt press filter has high market price and heavy equipment volume. ② the water content of the filter residue after filtering by the belt press filter is high, and the common water content is only about 45 percent. When applied to the field of drilling sewage treatment, the higher the viscosity of the slurry concentrate, the greater the external force required to be applied to the filter press.

Patent document CN108704346A describes a plate filter press, which includes a plurality of plate frames stacked in sequence along the horizontal direction, wherein, the two sides of the plate frame are provided with projections, the lower sides of the projections of the plate frame are provided with guide rails, and the plate frame can slide on the guide rails in a reciprocating manner; the end center of the guide rail is provided with a hydraulic cylinder, the telescopic direction of the hydraulic cylinder is perpendicular to the surface of the plate frame, the upper side of the plate frame is provided with a groove, the guide rail further comprises a linkage device, the linkage device comprises a positioning pin and a linkage rod which are arranged in parallel along the vertical direction, the upper end of the positioning pin is provided with a rotating rod, the lower end of the rotating rod is hinged to the upper end of the positioning pin, the two ends of the linkage rod are hinged to the upper end of the rotating rod respectively, the bottom of one positioning pin is inserted into the groove of the plate frame, and the bottom of the other positioning pin. The product facilitates the removal of the filter residue, but it is not clear to the skilled person how to place the slurry between the two plate frames under conditions that avoid the slurry flowing out from between the two plate frames.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plate and frame filter press for solid-liquid separation of drilling waste treatment to solve the technical problem that the mud cake is not convenient to take out by the plate and frame filter press for solid-liquid separation of drilling waste treatment in the prior art.

In order to solve the technical problems, the following technical scheme can be selected according to the needs:

a plate-frame filter press for solid-liquid separation in drilling waste treatment comprises an extrusion mechanism, a top cover and a solid-liquid separation part; the extrusion mechanism comprises a first pressing plate, a second pressing plate, side plates and a penetrating rod, wherein a guide groove for accommodating the penetrating rod is formed in each side plate, the penetrating rod is arranged in the guide groove, the penetrating rod is fixedly or elastically connected with the first pressing plate, the side plates are fixedly connected to two sides of the second pressing plate respectively, the penetrating rod is matched with the corresponding guide groove to form a moving pair, and the side surfaces, adjacent to the first pressing plate, of the side plates and the penetrating rod can form a first demolding surface; the side plate, the first pressing plate and the second pressing plate are enclosed to form a pull-type material frame, the solid-liquid separator is used for closing and opening a lower opening of the pull-type material frame, and the top cover is used for closing an upper opening of the pull-type material frame.

Preferably, the top cover is fixedly connected with the second pressing plate, and a filling opening is formed in the upper opening of the top cover, which corresponds to the pull-type material frame.

Furthermore, one first pressing plate and one second pressing plate form a group of extruding components, the extruding mechanism comprises at least two groups of extruding components, and a filling opening is correspondingly formed in the top cover at the position of a drawing material frame formed by each group of extruding components.

Preferably, the working surfaces of the first pressing plate and the second pressing plate are vertical surfaces.

Preferably, the working surfaces of the first pressing plate and the second pressing plate are inclined surfaces, and the inclined surfaces form a second demolding surface.

Preferably, the working surface of the first pressing plate and/or the second pressing plate is provided with filter cloth, and a filtrate channel is correspondingly arranged on the working surface of the first pressing plate and/or the second pressing plate.

Preferably, the solid-liquid separation part comprises filter cloth and a filter cloth support for mounting the filter cloth, a filtrate guide groove with a side liquid outlet is arranged on the filter cloth support, and the filtrate guide groove with the side liquid outlet is used for enabling filtrate to flow out from the side of the pull-type material frame.

Further, still include the conveyer belt, the conveying face setting of conveyer belt is in first clamp plate and second clamp plate below.

The device is characterized by further comprising a filter cloth support oscillator, wherein the filter cloth support is hinged to the side plate, and the filter cloth support oscillator is connected with the filter cloth support in a traction manner so as to drive the filter cloth support to close or open the lower opening of the pull-type material frame.

Preferably, the first release surface is a flat surface.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an extrusion mechanism is used for extruding mud and forms the mud cake, and solid-liquid separation spare still forms the end screen cloth of material sieve except having the solid-liquid separation function, can't preserve mud in avoiding extrusion mechanism, and the top cap is used for avoiding extrusion mechanism during operation, and mud spills over from the upper shed of pull formula material frame. The utility model discloses in, wearing the pole and the especially key of cooperation of guide slot, only being adjacent to of curb plate and wearing the pole the side surface of first clamp plate forms first plane of stripping, just can both avoid leaking thick liquid, the drawing of patterns of the mud cake of being convenient for again. Use the utility model discloses a plate and frame pressure filter is used in drilling waste disposal solid-liquid separation, can be convenient take out the mud cake, the filter-pressing is efficient.

2. When setting up the filling mouth on the top cap, the top cap can with second clamp plate fixed connection, the corresponding structural strength that can improve.

3. At least two sets of compression assemblies can improve the efficiency of compression.

4. When the working surfaces of the first pressing plate and the second pressing plate are vertical, the maximum pressure borne by different parts of the mud cakes is consistent during extrusion, the thickness of the mud cakes is consistent, and the mud cakes are easy to fall off.

5. When the working surfaces of the first pressing plate and the second pressing plate are inclined surfaces and the inclined surfaces form a second demolding surface, the mud cakes form a trapezoidal section during extrusion and are easy to fall off, but the pressures applied to different parts of the extruded mud cakes are inconsistent.

6. When the first pressing plate and the second pressing plate are also provided with filter cloth and filtrate channels, the water filtering performance of the slurry is good.

7. The filtrate guide groove with the side liquid outlet separates the filtrate from the falling position of the mud cake, so that the filtrate and the mud cake can be collected respectively.

8. The filter cloth support oscillator can drive the filter cloth support to close or open the lower opening of the pull-type material frame, so that the lower opening of the pull-type material frame can be opened and closed quickly, and time consumption of work preparation can be reduced conveniently.

Drawings

FIG. 1 is a connection structure diagram of the second pressing plate and the side plate of the plate-and-frame filter press for solid-liquid separation in the treatment of drilling waste.

FIG. 2 is a connection structure diagram of the first pressing plate and the through rod of the plate-and-frame filter press for solid-liquid separation in drilling waste treatment of the utility model.

FIG. 3 is a structural diagram of a solid-liquid separating member of a plate-and-frame filter press for solid-liquid separation in drilling waste treatment, in which the filter cloth is not shown.

Fig. 4 is a front view of the plate and frame filter press for solid-liquid separation in drilling waste treatment of the present invention, in order to show the internal structure thereof, the front side plate is not shown in the figure.

Fig. 5 is a sectional view a-a of fig. 4.

Fig. 6 is a top view of the plate-and-frame filter press for solid-liquid separation in drilling waste treatment, in order to show its internal structure, the top cover is not shown in the figure.

Fig. 7 is a sectional view of fig. 6 taken along line B-B.

Reference numeral specification, 11-top cover, 12-front side plate, 13-rear side plate, 14-filter cloth holder, 141-filter cloth mounting groove, 142-liquid discharge hole, 143-filtrate guide groove with side liquid outlet, 20-penetrating rod, 21-first pressing plate, 22-force application structure plate, and 3-second pressing plate.

Detailed Description

The present invention is described below in terms of embodiments with reference to the accompanying drawings to assist those skilled in the art in understanding and realizing the invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.

Example 1: a plate-and-frame filter press for solid-liquid separation in drilling waste treatment is disclosed, which is shown in figures 1-7 and comprises an extrusion mechanism, a top cover and a solid-liquid separation member.

The extrusion mechanism comprises a first pressing plate 21, a second pressing plate 3, side plates and a penetrating rod 20, wherein the side plates comprise a front side plate 12 and a rear side plate 13. The side plates are provided with guide grooves for accommodating the penetrating rods 20, the penetrating rods 20 are arranged in the guide grooves, the penetrating rods 20 are fixedly connected or elastically connected with the first pressing plates 21, the two sides of the second pressing plate 3 are fixedly connected with the side plates respectively, the penetrating rods 20 are matched with the corresponding guide grooves to form moving pairs, and the side surfaces, adjacent to the first pressing plates 21, of the side plates and the penetrating rods 20 can form first demolding surfaces. The first pressure plate 21 can be pulled or pushed by the through rod 20 to adjust the distance between the first pressure plate 21 and the second pressure plate 3. A draft surface is a surface that facilitates draft, such as a vertical surface, such as a bevel that forms a draft angle.

The solid-liquid separation piece is used for closing and opening the lower opening of the pull-type material frame, and the top cover is used for closing the upper opening of the pull-type material frame. When the solid-liquid separator closes the lower opening of the pull-type material frame and the pull-type material frame is in a pull-out state, slurry can be injected into the pull-type material frame. When the slurry between the first pressing plate 21 and the second pressing plate 3 is extruded, the top cover should close the upper opening of the pull-type material frame, and the solid-liquid separator should close the lower opening of the pull-type material frame so as to prevent the solid in the slurry from overflowing from gaps among the extruding mechanism, the top cover and the solid-liquid separator, but when the slurry between the first pressing plate 21 and the second pressing plate 3 is extruded, the liquid can be discharged through the liquid discharge hole on the solid-liquid separator, so that the filter pressing operation of the slurry is realized. After mud is pressed into mud cakes, the solid-liquid separating piece is moved, the lower opening of the pull type material frame is opened, the first pressing plate 21 is pulled through the penetrating rod 20, the distance between the first pressing plate 21 and the second pressing plate 3 is increased, the mud cakes are separated from the first pressing plate 21, at the moment, the friction force borne by the mud cakes is related to the pressure between the mud cakes and the second pressing plate 3 or is separated from the second pressing plate 3, and at the moment, the friction force borne by the mud cakes is related to the pressure between the mud cakes and the first pressing plate 21. When the gravity borne by the mud cake is greater than the sum of the friction force and the bonding force borne by the mud cake, the mud cake can fall from the lower opening of the pull-type material frame.

Generally, in order to ensure that the force applied to the first pressing plate 21 is uniform when the penetrating rod 20 pushes the first pressing plate, it is preferable that the penetrating rod 20 and the corresponding guide groove cooperate to form more than four sliding pairs. Referring to fig. 1 to 7, four through-rods 20 are provided at four corners of the front and rear sides of the first presser plate 21, respectively. A guide groove is provided at a corresponding position of the first presser plate 21. Referring to fig. 5, the side surfaces of the side plates and the through-rods 20 adjacent to the first press plate 21 form a first mold-releasing surface which is a vertical surface, so that the pressure of the cake against the first mold-releasing surface at the time of mold release is 0. When there are a plurality of the through-rods 20, the force application structure plate 22 disposed outside the pressing mechanism may be used to connect the through-rods, so that the through-rods can be pushed synchronously.

The top cover 11 and the pull-out material frame can be connected in a proper mode, for example, the top cover 11 is fixedly connected with the second pressing plate 3, and a filling opening is formed in the upper opening of the top cover 11 corresponding to the pull-out material frame, so that frequent movement of the top cover 11 can be avoided. In order to enhance the strength of the pull-out material frame, the top cover 11 is preferably fixedly connected with the front side plate 12 and the rear side plate 13. If the top cover 11 is attached to the second pressing plate 3, corresponding measures are taken to prevent slurry from overflowing from gaps between the top cover 11 and the front side plate 12, between the top cover 11 and the front side plate 3, between the top cover 11 and the first pressing plate 21, and thus slurry can be quickly injected into the pull-type material frame by turning the top cover 11 or removing the top cover 11.

In order to improve the extrusion efficiency, a first pressing plate 21 and a second pressing plate 3 form a group of extrusion assemblies, and the extrusion mechanism comprises at least two groups of extrusion assemblies. According to the requirement, a filling opening can be correspondingly arranged on the top cover 11 at the position of the drawing material frame formed by each group of the extrusion assemblies. If the extruding mechanism comprises at least two groups of extruding assemblies, the distance between the first pressing plate 21 and the second pressing plate 3 in each group of extruding assemblies is the same, but the mud content of the mud injected into each group of extruding assemblies may be different, preferably, the penetrating rod 20 is elastically connected with the first pressing plate 21, the elastic connection mode is preferably that a spring parallel to the penetrating rod is arranged, the spring is arranged behind the first pressing plate 21, and two ends of the spring are respectively fixedly connected with the penetrating rod 20 and the first pressing plate 21, so that when the penetrating rod pushes the first pressing plate 21 through the spring, the spring is in compression deformation. It is also possible to use an elastic surface as the working surface of the first presser plate 21 or the second presser plate 3.

In some implementations, the working surfaces of the first pressing plate 21 and the second pressing plate 3 are vertical surfaces, so that when the first pressing plate 21 is pushed by the through rod, the distance between the first pressing plate 21 and the second pressing plate 3 is the same, and the thickness of the pressed mud cake is the same.

In some implementations, the working faces of the first platen 21 and the second platen 3 are beveled, the bevels forming a second release face. At this time, the section between the first pressing plate 21 and the second pressing plate 3 is a trapezoidal surface, and the pressed mud cake is a trapezoidal column. The mud cake is easy to fall off, but the pressure applied to different parts of the pressed mud cake is inconsistent.

Referring to fig. 7, in some implementations, the working surfaces of the first pressing plate 21 and the second pressing plate 3 are parallel inclined surfaces, the distance between the first pressing plate 21 and the second pressing plate 3 is increased, if the mud cake is separated from the first pressing plate 21, the friction force exerted on the mud cake is 0, and if the mud cake is separated from the second pressing plate 3, the friction force exerted on the mud cake is greater than 0.

In some implementations, a filter cloth may be installed on the working surface of the first pressing plate 21 and/or the second pressing plate 3, and a filtrate channel is correspondingly provided. The filter cloth has a solid-liquid separation effect, and also has a buffering effect when the filter cloth is thick. The filtrate channel can be formed by the filter surface itself, or can be formed by a guide groove or a perforation arranged on the corresponding pressure plate.

Preferably, the solid-liquid separator includes a first filter cloth (not shown) and a filter cloth holder 14 for mounting the first filter cloth, the filter cloth holder 14 is provided with a filtrate guide groove 143 having a side outlet, and the filtrate guide groove 143 having a side outlet is used for allowing the filtrate to flow out from the side of the pull-out material frame. Generally, in order to move the mud cake, the filtrate mostly flows out from the side of the front side plate 12 or the rear side plate 13 side of the pull type material frame. Referring to fig. 3 to 5 and 7, a filter cloth mounting groove is formed on the filter cloth holder 14, and the filter cloth mounting groove 141 is communicated with a filtrate guide groove 143 having a side outlet through a drain hole 142.

Furthermore, the plate-and-frame filter press for solid-liquid separation in drilling waste treatment also comprises a conveyer belt (not shown), wherein the conveying surface of the conveyer belt is arranged below the first pressing plate 21 and the second pressing plate 3, so that mud cakes falling from the pull-type material frame can directly fall on the conveying surface of the conveyer belt.

Further, the plate-and-frame filter press for solid-liquid separation in drilling waste treatment further comprises a filter cloth support oscillator, wherein the filter cloth support 14 is hinged to the front side plate 12, and the filter cloth support oscillator is connected with the filter cloth support 14 in a pulling mode so as to drive the filter cloth support to close or open the lower opening of the pull-type material frame. The filter cloth support oscillator can select a hydraulic cylinder, the hydraulic cylinder is arranged on an oscillating plane of the filter cloth support, one end of the hydraulic cylinder is hinged with the filter cloth support, and the other end of the hydraulic cylinder is hinged with a hanging lug on the front side plate 12. Of course, the filter cloth holder 14 may also be hinged to the rear side plate 13, and the hydraulic cylinder is disposed on the swing plane of the filter cloth holder, with one end hinged to the filter cloth holder and the other end hinged to the hanging lug on the rear side plate 13.

When the device is used, the force application structure plate 22 is fixedly connected with the output part of the linear output power source, the filter cloth support oscillator pushes the filter cloth support to close the lower opening of the drawing type material frame, slurry is injected into the drawing type material frame, and the slurry injection port is cut off. The linear output power source is operated, the output part of the linear output power source pushes the penetrating rod, the penetrating rod drives the first pressing plate 21 to be close to the second pressing plate 3, and the slurry between the first pressing plate 21 and the second pressing plate 3 is extruded, and due to the limit of the top cover 11, the front side plate 12, the rear side plate 13, the first pressing plate 21, the second pressing plate 3 and the solid-liquid separating part, the moisture in the slurry enters the filtrate guide groove 143 with the side liquid outlet through the liquid channel and the liquid discharge hole 142 of the solid-liquid separating part and then is discharged from the side liquid outlet. The solid in the slurry can not pass through the liquid channel of the solid-liquid separator, and can not overflow from the top cover 11, the front side plate 12, the rear side plate 13, the first pressing plate 21, the second pressing plate 3 and the solid-liquid separator, so that the slurry can be pressed into a mud cake. If there are a plurality of groups of pressing assemblies and the pressure applied to the second pressing plate 3 by the penetrating rod of each group of pressing assemblies through the first pressing plate 21 is adjustable, the thickness of the mud cakes extruded by each group of pressing assemblies can be slightly different. If the working surface of the first pressing plate 21 or the second pressing plate 3 is provided with the second filter cloth and the filtrate channel, the water in the slurry can also pass through the second filter cloth and the filtrate channel and then enter the filtrate guide groove with the side liquid outlet through the first filter cloth and the liquid discharge hole. When the mud cake pressing is completed, the linear output power source is operated, the output part of the linear output power source pushes the penetrating rod, the penetrating rod drives the first pressing plate 21 to be far away from the second pressing plate 3, the mud cake is separated from the first pressing plate 21 or the second pressing plate 3, and after the filter cloth support oscillator is operated synchronously or later to pull the filter cloth support to open the lower opening of the pull-type material frame, the penetrating rod cannot support the mud cake due to the fact that the first demolding surface is a vertical surface, and the mud cake falls onto the conveying belt below from the lower opening of the pull-type material frame under the action of gravity.

When assembling the structure of fig. 1 and 2, the front side plate 12, the rear side plate 13 and the corresponding through rod 20 are assembled, then the first pressing plate 21 is welded on the through rod 20, and the second pressing plate 3 is welded with the front side plate 12 and the rear side plate 13.

The present invention has been described in detail with reference to the accompanying drawings and examples. It should be understood that in practice the description of all possible embodiments is not exhaustive and that the inventive concepts of the present invention are presented herein by way of illustration as much as possible. Without departing from the inventive concept of the present invention and without paying creative labor, technical personnel in the technical field can make or delete combinations, specific parameters to perform experimental changes to the technical features in the above embodiments, or use the prior art in the technical field to perform the specific embodiments of conventional replacement and formation by the disclosed technical means, which all belong to the content hidden in the present invention.

Claims (10)

1. A plate-frame filter press for solid-liquid separation in drilling waste treatment comprises an extrusion mechanism, a top cover and a solid-liquid separation part; the extrusion mechanism is characterized by comprising a first pressing plate, a second pressing plate, a side plate and a penetrating rod, wherein a guide groove for accommodating the penetrating rod is formed in the side plate, the penetrating rod is arranged in the guide groove, the penetrating rod is fixedly or elastically connected with the first pressing plate, the side plate is fixedly connected to each of two sides of the second pressing plate, the penetrating rod is matched with the corresponding guide groove to form a moving pair, and a first demolding surface can be formed on the side surface, adjacent to the first pressing plate, of each side plate and the corresponding penetrating rod; the side plate, the first pressing plate and the second pressing plate are enclosed to form a pull-type material frame, the solid-liquid separator is used for closing and opening a lower opening of the pull-type material frame, and the top cover is used for closing an upper opening of the pull-type material frame.

2. The plate and frame filter press for drilling waste treatment and solid-liquid separation of claim 1, wherein the top cover is fixedly connected with the second pressing plate, and a filling opening is arranged at the upper opening of the top cover corresponding to the pull-type material frame.

3. The plate and frame filter press for drilling waste treatment solid-liquid separation as claimed in claim 2, wherein one first pressing plate and one second pressing plate form a group of squeezing assemblies, the squeezing mechanism comprises at least two groups of squeezing assemblies, and a filling opening is correspondingly formed on the top cover at the position of the drawing material frame formed by each group of squeezing assemblies.

4. The plate and frame filter press for drilling waste treatment and solid-liquid separation of claim 1, wherein the working surfaces of the first and second press plates are both vertical.

5. The plate and frame filter press for drilling waste treatment solid-liquid separation of claim 1, wherein the working surfaces of the first and second press plates are inclined surfaces, and the inclined surfaces form a second release surface.

6. The plate and frame filter press for solid-liquid separation in drilling waste treatment according to claim 1, wherein a filter cloth is installed on the working surface of the first pressing plate and/or the second pressing plate, and a filtrate channel is correspondingly provided.

7. The plate and frame filter press for drilling waste treatment solid-liquid separation according to claim 1, wherein the solid-liquid separator comprises a filter cloth and a filter cloth holder for mounting the filter cloth, the filter cloth holder is provided with a filtrate guide groove having a side outlet for allowing the filtrate to flow out from the side of the pull-out material frame.

8. The plate and frame filter press for drilling waste treatment solid-liquid separation of claim 7, further comprising a conveyor belt, a conveying surface of which is disposed below the first and second press plates.

9. The plate and frame filter press for drilling waste treatment solid-liquid separation of claim 8, further comprising a filter cloth holder oscillator, wherein the filter cloth holder is hinged to the side plate, and the filter cloth holder oscillator is connected to the filter cloth holder in a pulling manner to drive the filter cloth holder to close or open the lower opening of the pull-out material frame.

10. The plate and frame filter press for drilling waste treatment solid-liquid separation according to claim 1, wherein the first release surface is a flat surface.

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