Plate-and-frame filter press

Abstract

The utility model relates to the technical field of filtering equipment, and discloses a plate-and-frame filter press which comprises a supporting frame, a shaft rod is arranged on the supporting frame, and a filtering frame and an extrusion block for extruding the filtering frame are arranged on the shaft rod; a cleaning mechanism for cleaning the filtering frame is further arranged on the supporting frame, the cleaning mechanism comprises two shoveling and scraping parts which are symmetrically distributed and an adjusting part for synchronously adjusting the two shoveling and scraping parts, and each shoveling and scraping part comprises a base arranged on the adjusting part and a mounting frame fixed to the base; a shoveling and scraping plate is arranged between the mounting frame and the base; through the arrangement of the cleaning mechanism, filter residues left on the outer walls of the plurality of filter plates and the filter frame can be scraped and cleaned, so that the filter frame is further cleaned, scale deposition in the filter frame is avoided, the filter effect of the filter frame is favorably improved, the filter frame is prevented from being blocked, and normal use of the filter is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a plate-frame filter press. Background Art

[0002] The plate and frame filter press is a filtering device composed of multiple filter plates and filter frames arranged alternately. In the ether aldehyde production process, a plate and frame filter is generally required to filter the solution obtained after the condensation reaction to facilitate further reaction treatment of the solution, thereby realizing the production and preparation of the ether aldehyde solution.

[0003] After using the existing plate and frame filter, the filter plate is generally pulled to separate the filter plate and the adjacent filter frame. At this time, the filter residue falls under the action of gravity to achieve residue discharge. However, the existing filter cannot scrape between the filter plate and the filter frame. Residue discharge only by gravity can easily lead to residual filter residue on the filter plate and the side wall of the filter frame, which can easily cause scale accumulation inside the filter, causing the filter to be blocked, reducing the filtering effect of the filter, and is not conducive to the normal use of the filter. Utility Model Content

[0004] The utility model provides a plate-frame filter press to solve the problem that the existing filter cannot scrape between the filter plate and the filter frame, which easily leads to filter residues remaining on the filter plate and the side wall of the filter frame.

[0005] In order to achieve the above object, the utility model provides the following technical solution: a plate-frame filter press, comprising a support frame, a shaft rod is arranged on the support frame, and a filter frame and an extrusion block for extruding the filter frame are arranged on the shaft rod; the filter frame is composed of a plurality of filter plates and filter frames arranged alternately;

[0006] The support frame is also provided with a cleaning mechanism for cleaning the filter frame, and the cleaning mechanism includes two symmetrically distributed scraping components and an adjusting component for synchronously adjusting the two scraping components, each of the scraping components includes a base arranged on the adjusting component, and a mounting frame fixed on the base, a scraping plate is arranged between the mounting frame and the base, and a first electric push rod is installed on one side of the mounting frame, and the telescopic end of the first electric push rod is fixedly connected to one side of the scraping plate, and blocks are installed on both sides of each filter plate, and a limiting structure for clamping the block is also provided on the base.

[0007] Preferably, the middle part of one side of the scraper plate is recessed inward to form an arc groove matching the shaft rod, and one side of the scraper plate forms a scraping portion for scraping the side walls of two adjacent filter plates synchronously, and a V-shaped collecting groove is formed between the two scraping portions.

[0008] Preferably, it also includes a cleaning mechanism for cleaning the scraping part, the cleaning mechanism includes a second electric push rod installed on the top of the mounting frame, and a concave cavity opened at the bottom of the horizontal section of the mounting frame, the bottom end of the concave cavity is set to be an opening, and a cleaning block is arranged in the concave cavity, the telescopic end of the second electric push rod extends into the concave cavity and is fixedly connected to the top of the cleaning block, one side of the cleaning block is recessed inward to form a cleaning groove matching the two scraping parts, and a scraping block matching the collection groove is formed between the two cleaning grooves.

[0009] Preferably, the limiting structure includes a cavity opened inside the base, a third electric push rod is installed in the cavity, and the telescopic end of the third electric push rod is connected to a lifting plate, two interference blocks are symmetrically installed on the top of the lifting plate, and the two interference blocks can respectively abut on both sides of the stop block, and the top of the base is also provided with slots for the two interference blocks to be lifted and lowered.

[0010] Preferably, the adjusting component includes mounting grooves provided on both sides of the support frame, and a screw seat fixed on one side of the two bases, screws are rotatably installed in the two mounting grooves, one end of the two screws extends to the outside of the support frame, and a transmission belt is connected between the ends of the two screws located outside the support frame, an adjusting disk is also installed at one end of one of the screws, and the screw seat is slidably arranged in the mounting groove and sleeved on the screw.

[0011] Preferably, guide bars are installed at the bottom of the two bases, and guide grooves are opened on both sides of the top of the support frame. The two guide bars are slidably arranged in the two guide grooves respectively, which can limit the position between the base and the support frame to ensure the stable movement of the base.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] (1) Through the setting of the cleaning mechanism, the filter residue remaining on the outer wall of multiple filter plates and the filter frame can be scraped and cleaned, thereby further cleaning the filter frame and avoiding scale accumulation inside the filter frame, which is beneficial to improving the filtering effect of the filter frame, preventing the filter frame from being blocked, and facilitating the normal use of the filter;

[0014] (2) By setting up the cleaning mechanism, the scraping part and the collecting trough of the scraper can be scraped, thereby cleaning the scraper and avoiding the residue remaining on the scraper, which is beneficial for the scraper to effectively clean the filter frame and improves the practicality of the cleaning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is one of the structural schematic diagrams of the utility model;

[0017] Figure 2 This is the second structural diagram of the utility model;

[0018] Figure 3 For this utility model Figure 1 Schematic diagram of the structure after the middle scraper component is adjusted;

[0019] Figure 4 This is a schematic diagram of the structure of the scraping component of the utility model;

[0020] Figure 5 For this utility model Figure 4 A partial cross-sectional view of

[0021] Figure 6 For this utility model Figure 5 A in the enlarged view;

[0022] Figure 7 For this utility model Figure 5 The enlarged view of point B in the figure;

[0023] In the figure: 1. support frame; 2. filter frame; 3. extrusion block; 4. shaft; 5. scraping component; 51. base; 52. mounting frame; 53. first electric push rod; 54. scraping plate; 6. cleaning mechanism; 61. second electric push rod; 62. cleaning block; 7. adjusting component; 71. adjusting disk; 72. transmission belt; 73. screw rod; 74. screw rod seat; 8. stop block; 9. limiting structure; 91. resistance block; 92. third electric push rod; 93. lifting plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 7As shown, a plate-frame filter press comprises a support frame 1, a shaft 4 is arranged on the support frame 1, a filter frame 2 and an extrusion block 3 for extruding the filter frame 2 are arranged on the shaft 4; the filter frame 2 is composed of a plurality of filter plates and filter frames arranged alternately; the principle of extruding the filter frame 2 by the extrusion block 3 is a prior art, and the specific reference can be made to the comparative document (Announcement No. CN215232334U, and the name is a plate-frame filter press convenient for internal cleaning), which will not be described in detail here;

[0026] The support frame 1 is also provided with a cleaning mechanism for cleaning the filter frame 2, and the cleaning mechanism includes two symmetrically distributed scraping components 5 and an adjusting component 7 for synchronously adjusting the two scraping components 5, each scraping component 5 includes a base 51 arranged on the adjusting component 7, and a mounting frame 52 fixed on the base 51, a scraping plate 54 is arranged between the mounting frame 52 and the base 51, and a first electric push rod 53 is installed on one side of the mounting frame 52, and the telescopic end of the first electric push rod 53 is fixedly connected to one side of the scraping plate 54, and blocks 8 are installed on both sides of each filter plate, and a limiting structure 9 for clamping the block 8 is also arranged on the base 51.

[0027] Specifically, Figure 2 , Figure 5 and Figure 7 As shown, the limiting structure 9 includes a cavity opened inside the base 51, in which a third electric push rod 92 is installed, and the telescopic end of the third electric push rod 92 is connected to a lifting plate 93, and two abutment blocks 91 are symmetrically installed on the top of the lifting plate 93, and the two abutment blocks 91 can respectively abut on both sides of the stopper 8, and the top of the base 51 is also provided with slots for the two abutment blocks 91 to be lifted and lowered.

[0028] Specifically, Figure 1-Figure 3 As shown, the adjusting component 7 includes mounting grooves opened on both sides of the support frame 1, and a screw seat 74 fixed on one side of the two bases 51, and screw rods 73 are rotatably installed in the two mounting grooves. One end of the two screw rods 73 extends to the outside of the support frame 1, and a transmission belt 72 is connected between the ends of the two screw rods 73 located outside the support frame 1, and an adjusting disk 71 is also installed at one end of one of the screw rods 73, and the screw seat 74 is slidably arranged in the mounting groove and sleeved on the screw rod 73.

[0029] In the ether aldehyde production process, when the reaction solution needs to be filtered, the filter frame 2 composed of multiple filter plates can be squeezed by the squeezing block 3 to make the multiple filter plates tightly connected, and then the reaction solution to be filtered is fed into the filter frame 2 through a pipeline to be filtered through the filter frame 2, and after filtering, the filtrate is discharged through a pipeline to facilitate further processing of the filtrate;

[0030] After filtering, when the filter residue needs to be cleaned, the extrusion block 3 can be moved and reset to make the filter frame 2 lose extrusion, and then the screw rod 73 is rotated by the adjusting disk 71, so that the two screw rods 73 rotate synchronously under the action of the transmission belt 72, and the two bases 51 are driven to move synchronously along the support frame 1 through the screw rod seat 74 until the limiting structure 9 moves to the bottom of the stopper 8 on both sides of one of the filter plates. At this time, the lifting plate 93 is driven to rise by the third electric push rod 92, so that the lifting plate 93 lifts the two abutting blocks 91 until the two abutting blocks 91 respectively abut on both sides of the stopper 8, and then the screw rod 73 is rotated in the opposite direction by the adjusting disk 71, so that the screw rod 73 drives the two bases 51 to move in the opposite direction through the screw rod seat 74, so as to pull one of the filter plates, so that the filter plate and the adjacent filter frame are separated. At this time, the filter residue falls under the action of gravity, and then the above steps are repeated to realize the discharge of the filter residue between the multiple filter plates and the filter frames, thereby completing the filter residue discharge;

[0031] And in the slag discharge process, when the limiting structure 9 separates one of the filter plates and the adjacent filter frame, a gap corresponding to the scraping component 5 is formed between the filter plate and the adjacent filter frame. At this time, the two scraping plates 54 are driven by the two first electric push rods 53 to move toward each other, so that the scraping plates 54 scrape the filter residue remaining on the outer walls of the adjacent filter plates and filter frames, and then repeat the above-mentioned slag discharge steps to scrape and clean the filter residue remaining on multiple filter plates and the outer walls of the filter frames, thereby further cleaning the filter frame 2 and avoiding scale accumulation inside the filter frame 2, which is beneficial to ensuring the filtering effect of the filter frame 2, preventing the filter frame 2 from being blocked, and facilitating efficient filtration of the solution.

[0032] Furthermore, if Figure 1-Figure 6 As shown, the middle part of one side of the scraping plate 54 is recessed inward to form an arc groove matching the shaft rod 4, and one side of the scraping plate 54 forms a scraping portion for scraping the side walls of two adjacent filter plates synchronously, and a V-shaped collecting groove is formed between the two scraping portions.

[0033] When the two first electric push rods 53 drive the two scraping plates 54 to move toward each other, the two scraping parts at one end of the two scraping plates 54 respectively scrape the side walls of the two adjacent filter plates, and make the impurities temporarily stored in the collecting trough, and then fall along the collecting trough under the action of gravity, and when one end of the two scraping plates 54 are butted, the scraping plates 54 are sleeved on the outside of the shaft rod 4 through the arc groove, so as to realize the positioning between the scraping plates 54 and the shaft rod 4.

[0034] Furthermore, in this embodiment, in order to increase the stability of the base 51 when it moves, as shown in FIG. Figure 1-Figure 3 As shown, guide bars are installed at the bottom of the two bases 51, and guide grooves are opened on both sides of the top of the support frame 1. The two guide bars are slidably arranged in the two guide grooves respectively.

[0035] When the screw rod 73 is rotated by the adjusting disk 71 and the screw rod 73 drives the base 51 to move horizontally along the support frame 1 through the screw rod seat 74, the guide bar at the bottom of the base 51 slides along the guide groove to limit the position between the base 51 and the support frame 1, thereby increasing the stability of the base 51 during movement and facilitating the stable adjustment of the position of the scraping component 5.

[0036] In addition, in one embodiment, if Figure 1-Figure 6 As shown, it also includes a cleaning mechanism 6 for cleaning the scraping part. The cleaning mechanism 6 includes a second electric push rod 61 installed at the top of the mounting frame 52, and a concave cavity opened at the bottom of the horizontal section of the mounting frame 52. The bottom end of the concave cavity is set to be an opening, and a cleaning block 62 is arranged in the concave cavity. The telescopic end of the second electric push rod 61 extends into the concave cavity and is fixedly connected to the top of the cleaning block 62. One side of the cleaning block 62 is recessed inward to form a cleaning groove matching the two scraping parts, and a scraping block matching the collection groove is formed between the two cleaning grooves.

[0037] After the scraper plate 54 scrapes and cleans the filter plate, the scraper plate 54 is first reset, and then the cleaning block 62 is driven downward by the second electric push rod 61, so that the cleaning block 62 descends along the end of the scraper plate 54 to scrape the scraping part and the collecting trough of the scraper plate 54, thereby cleaning the scraper plate 54 and avoiding filter residue remaining on the scraper plate 54, which is beneficial for the scraper plate 54 to effectively clean the filter frame 2 later.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plate and frame filter press, comprising a support frame (1), characterized in that: The support frame (1) is provided with a shaft (4), and the shaft (4) is provided with a filter frame (2) and an extrusion block (3) for extruding the filter frame (2); the filter frame (2) is composed of a plurality of filter plates and filter frames arranged alternately; The support frame (1) is also provided with a cleaning mechanism for cleaning the filter frame (2), and the cleaning mechanism comprises two symmetrically distributed scraping components (5) and an adjusting component (7) for synchronously adjusting the two scraping components (5), each of the scraping components (5) comprises a base (51) arranged on the adjusting component (7), and a mounting frame (52) fixed on the base (51), a scraping plate (54) is arranged between the mounting frame (52) and the base (51), and a first electric push rod (53) is installed on one side of the mounting frame (52), and the telescopic end of the first electric push rod (53) is fixedly connected to one side of the scraping plate (54), and each of the filter plates is installed with a stopper (8) on both sides, and a limiting structure (9) for clamping the stopper (8) is also provided on the base (51).

2. A plate and frame filter press according to claim 1, characterized in that: The middle portion of one side of the scraping plate (54) is recessed inward to form an arc groove matching the shaft rod (4), and one side of the scraping plate (54) forms a scraping portion for scraping the side walls of two adjacent filter plates synchronously, with a V-shaped collecting groove formed between the two scraping portions.

3. A plate and frame filter press according to claim 2, characterized in that: The cleaning device also comprises a cleaning mechanism (6) for cleaning the scraping parts, the cleaning mechanism (6) comprising a second electric push rod (61) mounted on the top of the mounting frame (52), and a concave cavity opened at the bottom of the horizontal section of the mounting frame (52), the bottom end of the concave cavity being set as an opening, and a cleaning block (62) being arranged in the concave cavity, the telescopic end of the second electric push rod (61) extending into the concave cavity and being fixedly connected to the top of the cleaning block (62), one side of the cleaning block (62) being recessed inwardly to form a cleaning groove matching the two scraping parts, and a scraping block matching the collecting groove is formed between the two cleaning grooves.

4. A plate and frame filter press according to claim 1, characterized in that: The limiting structure (9) comprises a cavity opened inside the base (51), a third electric push rod (92) is installed in the cavity, and the telescopic end of the third electric push rod (92) is connected to a lifting plate (93), two abutment blocks (91) are symmetrically installed on the top of the lifting plate (93), and the two abutment blocks (91) can respectively abut on both sides of the stopper (8), and the top of the base (51) is also provided with slots for the two abutment blocks (91) to be lifted and lowered.

5. A plate and frame filter press according to claim 1, characterized in that: The adjusting component (7) comprises mounting grooves provided on both sides of the support frame (1) and screw seats (74) fixed on one side of the two bases (51), screws (73) being rotatably mounted in the two mounting grooves, one end of the two screws (73) extending to the outside of the support frame (1), and a transmission belt (72) being connected between the ends of the two screws (73) located outside the support frame (1), an adjusting disk (71) being further mounted on one end of one of the screws (73), and the screw seat (74) being slidably mounted in the mounting groove and sleeved on the screw (73).

6. A plate and frame filter press according to claim 5, characterized in that: The bottoms of the two bases (51) are both provided with guide bars, and the top sides of the support frame (1) are both provided with guide grooves, and the two guide bars are respectively slidably arranged in the two guide grooves.

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