A solid-liquid separation device for harmless treatment of waste drilling fluid

Abstract

The utility model relates to a kind of solid-liquid separation device for waste drilling fluid harmless treatment, including the rack and filter plate being set on solid-liquid separation device, it is characterized by: the automatic plate puller for pulling open filter plate is provided on the rack, cleaning structure for cleaning filter plate is provided on the automatic plate puller.This solid-liquid separation device for waste drilling fluid harmless treatment is connected with automatic plate puller by mounting bracket, moves synchronously with the plate pulling action of automatic plate puller, ensures that filter plate can be started cleaning when pulling open, two cleaning components on mounting bracket are symmetrically distributed, respectively corresponding the two sides of filter plate, rotate by driving part and drive cylindrical soft brush, wipe the residue on filter plate surface, shorten downtime, solve the problem of long equipment downtime and low efficiency caused by manual cleaning, the baffle frame of cleaning component blocks residue splashing, plastic scraper then real-time cleaning adhered residue on cylindrical soft brush, avoid hardening by accumulation, ensure that soft brush continues effectively.

Description

Technical Field

[0001] This utility model relates to the field of harmless treatment of waste drilling fluid, specifically a solid-liquid separation device for harmless treatment of waste drilling fluid. Background Technology

[0002] The harmless treatment of waste drilling fluid is a process of reducing or removing pollutants through physical, chemical, and biological technologies to meet environmental safety standards. The mainstream harmless treatment technologies include physical treatment technologies, chemical treatment technologies, and biological treatment technologies. Among them, physical treatment technologies include solid-liquid separation technology and evaporation technology. Solid-liquid separation technology uses centrifugal force or pressure to separate solid particles from liquid in drilling fluid, producing filter cake and filtrate, or through natural sedimentation or the addition of flocculants to make suspended particles settle, and the supernatant can be further treated.

[0003] In current technologies, waste drilling fluid is usually treated using a filter press in a solid-liquid separation device. The pressure of the slurry is applied by a pump or compressed air to create a pressure difference on both sides of the filter cloth, thereby filtering the waste drilling fluid. When the filtrate stops flowing out, an automatic plate puller is used to pull the filter plates apart in sections, and the filter cake falls off naturally under the action of gravity. In practical use, after the filter cake falls off under gravity, some filter cake residue will adhere to the filter cloth. The residue will block the pores of the filter cloth, reduce the effective filtration area, and cause the filtration speed to slow down and the processing capacity to decrease. Furthermore, long-term adhesion of residue will aggravate the wear and corrosion of the filter cloth. Manually cleaning the residue on each filter plate requires a long time, resulting in long equipment downtime and affecting the efficiency of operation. Therefore, a solid-liquid separation device for the harmless treatment of waste drilling fluid is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a solid-liquid separation device for the harmless treatment of waste drilling fluid. It has the advantage of automatic cleaning during the filter plate opening process, solving the problem that in actual use, after the filter cake falls off under gravity, some filter cake residue will adhere to the filter cloth. The residue will block the pores of the filter cloth, reduce the effective filtration area, and lead to slower filtration speed and reduced processing capacity. Furthermore, long-term adhesion of residue will aggravate the wear and corrosion of the filter cloth. Manually cleaning the residue on each filter plate requires a long time, resulting in long equipment downtime and affecting operational efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a solid-liquid separation device for the harmless treatment of waste drilling fluid, comprising a frame and a filter plate disposed on the solid-liquid separation device, characterized in that: an automatic plate puller for pulling open the filter plate is disposed on the frame, and a cleaning structure for cleaning the filter plate is disposed on the automatic plate puller; The cleaning structure includes a mounting bracket connected to an automatic plate puller. The mounting bracket is provided with two symmetrically distributed cleaning components for cleaning both sides of the filter plate. The mounting bracket is also provided with a lifting component for controlling the up and down movement of the two cleaning components. The cleaning assembly includes a baffle frame for preventing filter cake residue from splashing, a cylindrical soft brush is rotatably mounted on the baffle frame, and a drive component is provided on the baffle frame for rotating the cylindrical soft brush. The lifting component includes a connecting plate slidably mounted on a mounting bracket. Two connecting frames are fixedly connected to the connecting plate, and the connecting frames are fixedly connected to the baffle frame on the same side. Two electric push rods are fixedly mounted on the mounting bracket, and the telescopic ends of the two electric push rods are respectively fixedly connected to the connecting plate.

[0006] Furthermore, the mounting bracket includes an H-shaped bracket, on which a plurality of bolts for connecting the automatic puller are installed, and an anti-detachment plate located on the top of the connecting plate is fixedly installed on the H-shaped bracket.

[0007] Furthermore, a guide post is fixedly installed between the anti-detachment plate and the H-shaped bracket, one end of the guide post penetrates through the connecting plate, and the connecting plate is slidably connected to the guide post.

[0008] Furthermore, the connecting plate has two symmetrically distributed rectangular slots, and the two ends of the H-shaped bracket pass through the two rectangular slots respectively, with the rectangular slots slidably connected to the H-shaped bracket.

[0009] Furthermore, several plastic scrapers are fixedly installed inside the baffle frame, and the plastic scrapers are used to clean the cylindrical soft brush.

[0010] Furthermore, the driving component includes a motor and a belt. Pulleys are fixedly installed on the output shaft of the motor and the shaft of the cylindrical soft brush. The belt is installed on the two pulleys, and the motor is fixedly installed on the baffle frame.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This solid-liquid separation device for the harmless treatment of waste drilling fluid is connected to an automatic plate puller via a mounting bracket. It moves synchronously with the automatic plate puller, ensuring that cleaning can be started as soon as the filter plate is pulled open. The two cleaning components on the mounting bracket are symmetrically distributed, corresponding to the two sides of the filter plate respectively. The drive component drives the cylindrical soft brush to rotate, wiping the residue on the surface of the filter plate, shortening downtime and solving the problems of long downtime and low efficiency caused by manual cleaning. 2. The solid-liquid separation device for the harmless treatment of waste drilling fluid uses an electric push rod in the lifting component to drive the connecting plate to move up and down. The connecting frame drives the cleaning component to move up and down synchronously, expanding the cleaning range and avoiding dead corners. The guide column provides precise guidance for the up and down movement of the connecting plate, preventing the cleaning component from shifting or shaking, ensuring that the cylindrical soft brush adheres to the surface of the filter plate, and guaranteeing the cleaning accuracy. 3. This solid-liquid separation device for the harmless treatment of waste drilling fluid has a baffle frame in the cleaning component to prevent residue from splashing, while the plastic scraper cleans the residue adhering to the cylindrical soft brush in real time, avoiding accumulation and hardening, ensuring the soft brush remains effective, and the plastic material has moderate hardness, so it does not damage the soft brush and extends its service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cleaning structure of this utility model; Figure 3 This is an exploded view of the structure cleaning structure of this utility model; Figure 4 This is an enlarged view of the structural cleaning component of this utility model; Figure 5 This is a schematic diagram of the structural baffle frame and plastic scraper of this utility model.

[0013] In the diagram: 1. Frame; 2. Filter plate; 3. Automatic plate puller; 4. Cleaning structure; 41. Mounting bracket; 411. H-type bracket; 412. Bolt; 413. Anti-detachment plate; 414. Guide column; 42. Lifting component; 421. Connecting plate; 422. Connecting frame; 423. Electric push rod; 424. Rectangular groove; 43. Cleaning assembly; 431. Baffle frame; 432. Cylindrical soft brush; 433. Drive component; 434. Plastic scraper. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1: Please refer to Figure 1-5 This embodiment of a solid-liquid separation device for the harmless treatment of waste drilling fluid includes a frame 1 and a filter plate 2 disposed on the solid-liquid separation device. The frame 1 is provided with an automatic plate puller 3 for pulling open the filter plate 2, and the automatic plate puller 3 is provided with a cleaning structure 4 for cleaning the filter plate 2.

[0016] Example 2: Please refer to Figure 1-5 Based on Embodiment 1, the cleaning structure 4 includes a mounting bracket 41 connected to the automatic plate puller 3. The mounting bracket 41 is provided with two symmetrically distributed cleaning components 43 for cleaning both sides of the filter plate 2. The mounting bracket 41 is provided with a lifting component 42 for controlling the up and down movement of the two cleaning components 43. The cleaning assembly 43 includes a baffle frame 431 for preventing filter cake residue from splashing, a cylindrical soft brush 432 is rotatably mounted on the baffle frame 431, and a drive component 433 for driving the cylindrical soft brush 432 to rotate is provided on the baffle frame 431. The lifting component 42 includes a connecting plate 421 that is slidably mounted on the mounting bracket 41. Two connecting frames 422 are fixedly connected to the connecting plate 421, and the connecting frames 422 are fixedly connected to the baffle frame 431 on the same side. Two electric push rods 423 are fixedly mounted on the mounting bracket 41, and the telescopic ends of the two electric push rods 423 are respectively fixedly connected to the connecting plate 421. The cleaning structure 4 is linked with the automatic plate puller 3, and cleaning is carried out simultaneously during the plate pulling process without additional machine downtime. This solves the problems of long downtime and low efficiency caused by manual cleaning. The two cleaning components 43 clean both sides of the filter plate 2 respectively. With the up and down movement of the lifting component 42, it can achieve cleaning without dead corners and avoid residue residue. The cylindrical soft brush 432 rotates and cleans with moderate force, which can remove slag without damaging the filter cloth. The baffle frame 431 prevents residue from splashing, keeps the equipment and environment clean, and reduces subsequent cleaning costs.

[0017] The baffle frame 431 has several plastic scrapers 434 fixedly installed inside. The plastic scrapers 434 are used to clean the cylindrical soft brush 432. The plastic scrapers 434 remove the residue on the cylindrical soft brush 432 in real time to prevent it from accumulating and hardening, and ensure the continuous cleaning ability of the soft brush. The plastic material has moderate hardness, does not damage the soft brush, and extends its service life.

[0018] In addition, the drive component 433 includes a motor and a belt. Pulleys are fixedly installed on the output shaft of the motor and the shaft of the cylindrical soft brush 432. The belt is installed on the two pulleys, and the motor is fixedly installed on the baffle frame 431. The motor drives the cylindrical soft brush 432 through the belt drive. The transmission is smooth and the power is reliable, ensuring uniform cleaning effect. The belt drive has a buffering effect, reducing the impact of hard residue on the motor and soft brush, and reducing the risk of component damage.

[0019] Using the above technical solution, the motor of the drive component 433 drives the cylindrical soft brush 432 to rotate at high speed via belt drive, preparing to clean the surface of the filter plate 2. The electric push rod 423 of the lifting component 42 extends and retracts, driving the connecting plate 421 and the connecting frame 422 to move up and down, so that the rotating cylindrical soft brush 432 wipes up and down along the surface of the filter plate 2, thoroughly cleaning the residue on both sides. The baffle frame 431 prevents the residue from splashing, and at the same time, the plastic scraper 434 inside it rotates with the cylindrical soft brush 432 to scrape off the residue adhering to the surface of the soft brush.

[0020] Example 3: Please refer to Figure 1-5 Based on Embodiment 2, the mounting bracket 41 includes an H-shaped bracket 411. Several bolts 412 for connecting the automatic puller 3 are installed on the H-shaped bracket 411. An anti-detachment plate 413 located on the top of the connecting plate 421 is fixedly installed on the H-shaped bracket 411. The H-shaped bracket 411 has high structural strength, ensuring a stable connection between the cleaning structure 4 and the automatic puller 3, and preventing loosening due to vibration during cleaning. The bolts 412 facilitate the installation, disassembly, and maintenance of the cleaning structure 4, reducing the difficulty of maintenance. The anti-detachment plate 413 limits the maximum stroke of the connecting plate 421, preventing the cleaning component 43 from derailing from the track and improving operational safety.

[0021] Among them, a guide post 414 is fixedly installed between the anti-detachment plate 413 and the H-shaped bracket 411. One end of the guide post 414 passes through the connecting plate 421, and the connecting plate 421 is slidably connected to the guide post 414. The guide post 414 provides precise guidance for the up and down movement of the connecting plate 421, avoids the cleaning component 43 from shifting or shaking, ensures that the cylindrical soft brush 432 fits the surface of the filter plate 2, and guarantees the cleaning accuracy.

[0022] In addition, two rectangular slots 424 are symmetrically distributed on the connecting plate 421, and the two ends of the H-shaped bracket 411 pass through the two rectangular slots 424 respectively. The rectangular slots 424 and the H-shaped bracket 411 are slidably connected. The sliding cooperation between the rectangular slots 424 and the H-shaped bracket 411 enhances the movement stability of the connecting plate 421 and forms a double guide with the guide post 414 to avoid incomplete cleaning.

[0023] The working principle of the above embodiments is as follows: The solid-liquid separation device for the harmless treatment of waste drilling fluid starts to clean the cleaning structure 4 simultaneously when the automatic plate puller 3 begins to pull the filter plate 2 in sections. The motor of the drive component 433 drives the cylindrical soft brush 432 to rotate at high speed via belt drive, in preparation for cleaning the surface of the filter plate 2. The electric push rod 423 of the lifting component 42 extends and retracts, driving the connecting plate 421 and the connecting frame 422 to move up and down, so that the rotating cylindrical soft brush 432 wipes up and down along the surface of the filter plate 2, thoroughly cleaning the residue on both sides. The baffle frame 431 prevents residue from splashing, while the plastic scraper 434 inside it rotates with the cylindrical soft brush 432 to scrape off the residue adhering to the surface of the soft brush. After the filter plate 2 is fully pulled out, the cleaning component 43 completes the cleaning of the filter plate and moves to the next filter plate 2 with the automatic plate puller 3. The above steps are repeated until all filter plates are cleaned.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device for the harmless treatment of waste drilling fluid, comprising a frame (1) and a filter plate (2) disposed on the solid-liquid separation device, characterized in that: The frame (1) is provided with an automatic plate puller (3) for pulling open the filter plate (2), and the automatic plate puller (3) is provided with a cleaning structure (4) for cleaning the filter plate (2). The cleaning structure (4) includes a mounting bracket (41) connected to the automatic plate puller (3). The mounting bracket (41) is provided with two symmetrically distributed cleaning components (43) for cleaning both sides of the filter plate (2). The mounting bracket (41) is provided with a lifting component (42) for controlling the up and down movement of the two cleaning components (43). The cleaning assembly (43) includes a baffle frame (431) for preventing filter cake residue from splashing, a cylindrical soft brush (432) is rotatably mounted on the baffle frame (431), and a drive component (433) is provided on the baffle frame (431) for driving the cylindrical soft brush (432) to rotate. The lifting component (42) includes a connecting plate (421) slidably mounted on the mounting bracket (41). Two connecting frames (422) are fixedly connected to the connecting plate (421), and the connecting frames (422) are fixedly connected to the baffle frame (431) on the same side. Two electric push rods (423) are fixedly mounted on the mounting bracket (41), and the telescopic ends of the two electric push rods (423) are fixedly connected to the connecting plate (421) respectively.

2. The solid-liquid separation device for the harmless treatment of waste drilling fluid according to claim 1, characterized in that: The mounting bracket (41) includes an H-shaped bracket (411), on which a plurality of bolts (412) for connecting the automatic puller (3) are installed, and an anti-detachment plate (413) located on the top of the connecting plate (421) is fixedly installed on the H-shaped bracket (411).

3. A solid-liquid separation device for the harmless treatment of waste drilling fluid according to claim 2, characterized in that: A guide post (414) is fixedly installed between the anti-detachment plate (413) and the H-shaped bracket (411). One end of the guide post (414) passes through the connecting plate (421), and the connecting plate (421) is slidably connected to the guide post (414).

4. A solid-liquid separation device for the harmless treatment of waste drilling fluid according to claim 2, characterized in that: The connecting plate (421) has two symmetrically distributed rectangular slots (424), and the two ends of the H-shaped bracket (411) pass through the two rectangular slots (424) respectively. The rectangular slots (424) are slidably connected to the H-shaped bracket (411).

5. A solid-liquid separation device for the harmless treatment of waste drilling fluid according to claim 1, characterized in that: Several plastic scrapers (434) are fixedly installed inside the baffle frame (431), and the plastic scrapers (434) are used to clean the cylindrical soft brush (432).

6. A solid-liquid separation device for the harmless treatment of waste drilling fluid according to claim 1, characterized in that: The drive component (433) includes a motor and a belt. The output shaft of the motor and the shaft of the cylindrical soft brush (432) are both fixedly mounted with pulleys. The belt is mounted on the two pulleys, and the motor is fixedly mounted on the baffle frame (431).

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