High-pressure plate frame sludge filter-pressing dehydrator

Abstract

The utility model discloses a high-pressure plate-and-frame sludge filter-pressing dehydrator, which relates to the technical field of plate-and-frame filter presses, and comprises a rack and a bottom frame, and the bottom frame is positioned below the rack; a collecting box is arranged below the interior of the bottom frame, and universal wheels are connected to the two sides of the bottom of the collecting box; dust suction pipes and purging nozzles penetrate through the two sides of the outer surface and the two sides of the back of the bottom frame, one end of each purging nozzle is connected with an air conveying pipe, suction ports are formed in the bottom and one side of each dust suction pipe, and one end of each dust suction pipe is connected with an exhaust pipe. Through the arrangement of the cleaning brush, the totally-closed electric cylinder and the collecting box, the output end of the totally-closed electric cylinder drives the cleaning brush to move back and forth in a reciprocating mode, so that the bottom of the belt conveyor is cleaned, mud cake residues on the belt conveyor are effectively removed, meanwhile, the totally-closed electric cylinder is adopted, the protection grade is IP65 and above, and the cleaning effect is good. Dust raised by crushing the mud cakes is effectively prevented from entering the inside of the cylinder body to cause abrasion, and most mud cake residues falling off during cleaning can fall into a collecting box; and automatic cleaning is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of plate and frame filter press technology, specifically a high-pressure plate and frame sludge filter press dewatering machine. Background Technology

[0002] A filter press is a mechanical device that uses a special filter medium to apply pressure to a material, causing the liquid to seep out. It is a commonly used solid-liquid separation device and is widely used in fields such as wastewater treatment. For example, after sludge enters, it is filtered to remove most of the water from the sludge, thus turning the sludge into a sludge cake with low water content.

[0003] In existing sludge filter presses, the bottom of the machine is usually conveyed by a belt conveyor to send out the sludge cake and filter residue. Although the sludge cake has a high water content, it is not without moisture. Some of the clumps of sludge cake are easily affected by external forces such as squeezing, falling and impact, and adhere to the top of the belt conveyor. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a high-pressure plate and frame sludge filter press dewatering machine to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure plate and frame sludge filter press dewatering machine, comprising a frame and a base frame, the base frame being located below the frame; a collection box is provided inside the lower part of the base frame, and universal wheels are connected to both sides of the bottom of the collection box; a dust suction pipe and a blowing nozzle are passed through both sides of the outer surface and the back of the base frame, and one end of the blowing nozzle is connected to an air supply pipe; a suction port is provided at the bottom and one side of the dust suction pipe, and one end of the dust suction pipe is connected to an air extraction pipe; a support is connected inside the base frame, and a fully enclosed electric cylinder is installed on the top of the support, and a cleaning brush is connected to the output end of the fully enclosed electric cylinder.

[0006] By adopting the above technical solution, during the operation of the belt conveyor, the cleaning brush is driven to reciprocate back and forth by the output end of the fully enclosed electric cylinder, thereby cleaning the bottom of the belt conveyor and effectively removing mud cake residue on the belt conveyor. At the same time, the use of a fully enclosed electric cylinder with an IP protection level or higher effectively prevents dust from being thrown up by mud cake crushing from entering the cylinder body and causing wear. Most of the mud cake residue that falls off during cleaning will fall into the collection box. The blowing nozzle uses a Roots blower or air compressor as the air source to use compressed air to horizontally blow the bottom of the belt conveyor, loosening and falling off stubborn mud cakes, so as to cooperate with the cleaning brush to achieve a better cleaning effect. Meanwhile, the suction ports on the side and bottom of the suction pipe extract the dust thrown up in the cleaned area and send it into the bag dust collector to prevent dust from flying out and causing dust pollution to the environment.

[0007] Furthermore, a sludge inlet mechanism and a water outlet mechanism are respectively provided on one side of the frame. A plate and frame assembly, a filter press assembly, and a pusher plate assembly are respectively provided inside the frame. The sludge inlet mechanism and the water outlet mechanism are both connected to the plate and frame assembly. A control panel is installed on one side of the frame, and a sludge unloading assembly is provided at the bottom inside the frame.

[0008] By adopting the above technical solution, sludge is fed into the plate and frame assembly through the sludge feeding mechanism. At the same time, the filter press assembly pressurizes the plate and frame assembly, causing the sludge to be affected by the pressure and separated from the water. The water is discharged through the water outlet mechanism. After the filter press is completed, the sludge moisture content is reduced significantly and a sludge cake is formed. Then the filter press assembly moves away from the plate and frame assembly and stops applying pressure. At the same time, the pusher assembly disperses the plate and frame assembly to facilitate the sludge cake falling off.

[0009] Furthermore, a belt conveyor is installed inside the upper part of the base frame, and the belt conveyor is located below the sludge unloading assembly, which is located below the plate and frame assembly and the filter press assembly.

[0010] By adopting the above technical solution, the sludge unloading component opens to guide the sludge cake, causing the sludge cake to fall onto the top of the belt conveyor. After the belt conveyor starts, it sends the sludge cake away for subsequent recycling or landfill.

[0011] Furthermore, the collection box is detachably connected to the base frame, and a handle is fixed to the outer surface of the collection box.

[0012] By adopting the above technical solution, when cleaning is required, staff can directly pull the collection box out of the base frame using the handle, which makes it easy to clean the mud cake inside the collection box.

[0013] Furthermore, the vacuum cleaner is provided with four vacuum cleaner pipes, and the four vacuum cleaner pipes are distributed in a mirror image.

[0014] By adopting the above technical solution, it is convenient to extract the dust raised in the cleaned area and send it into the bag filter, thus avoiding dust pollution from the outside due to the cleaned structure.

[0015] Furthermore, the suction port is provided in multiple ways, and the multiple suction ports are divided into eight groups. The eight groups of suction ports are respectively located on one side and at the bottom of the four groups of suction pipes, and are vertically distributed.

[0016] By adopting the above technical solution, the suction ports on the side and bottom of the suction pipe extract the dust raised in the cleaned area and send it into the bag filter, thus preventing the dust from flying out and causing dust pollution to the environment.

[0017] Furthermore, the purge nozzles are provided in multiple ways, and the multiple purge nozzles are arranged in a mirror-symmetrical and staggered manner.

[0018] By adopting the above technical solution, the purging nozzle uses a Roots blower or air compressor as the air source to horizontally purge the bottom of the belt conveyor with compressed air, so that the stubborn mud cake is loosened and falls off, so as to cooperate with the cleaning brush to achieve a better cleaning effect.

[0019] Furthermore, the cleaning brush is slidably connected to the bottom of the belt conveyor.

[0020] By adopting the above technical solution, the cleaning brush is driven to reciprocate back and forth by the output end of the fully enclosed electric cylinder, thereby cleaning the bottom of the belt conveyor and effectively removing the mud cake residue on the belt conveyor.

[0021] Furthermore, the suction pipe has a longitudinal section in the shape of a "7" and is detachably connected to the air extraction pipe by bolts. The blowing nozzle has a longitudinal section in the shape of an "L" and is detachably connected to the air supply pipe by bolts.

[0022] By adopting the above technical solution, since the blowing nozzle is L-shaped and the suction pipe is 7-shaped, the suction pipe and blowing nozzle are staggered from the exhaust pipe and air supply pipe, which facilitates disassembly. Therefore, the staff can remove the bolt between the suction pipe and the exhaust pipe and then pull out the suction pipe horizontally for cleaning or replacement. Similarly, the blowing nozzle can be replaced by simply removing the bolt between the blowing nozzle and the air supply pipe.

[0023] In summary, the present invention has the following main advantages:

[0024] 1. This utility model, through the setting of a cleaning brush, a fully enclosed electric cylinder and a collection box, uses the output end of the fully enclosed electric cylinder to drive the cleaning brush to reciprocate back and forth, thereby cleaning the bottom of the belt conveyor and effectively removing mud cake residue on the belt conveyor. At the same time, the use of a fully enclosed electric cylinder with a protection level of IP65 and above effectively prevents dust raised by mud cake crushing from entering the cylinder body and causing wear, and most of the mud cake residue that falls off during cleaning will fall into the collection box; facilitating automatic cleaning.

[0025] 2. This utility model, through the arrangement of a suction pipe, suction port, and blowing nozzle, uses a Roots blower or air compressor as an air source to horizontally blow compressed air onto the bottom of the belt conveyor, loosening and removing stubborn mud cakes to facilitate cleaning with the cleaning brush for better cleaning results. Simultaneously, the suction ports on the side and bottom of the suction pipe extract dust raised in the cleaned area and send it into a bag filter, preventing dust from flying out and causing environmental pollution. This improves the cleaning effect, facilitates the removal of stubborn mud cakes, and avoids dust pollution to the outside world. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the base frame structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the base frame of this utility model;

[0029] Figure 4 This is a side sectional view of the purging nozzle of this utility model;

[0030] Figure 5 This is a schematic diagram of the cross-sectional structure of the suction pipe of this utility model;

[0031] Figure 6 This is a schematic diagram of the cleaning brush structure of this utility model;

[0032] Figure 7 This is a schematic diagram of the collection box structure of this utility model.

[0033] In the diagram: 1. Frame; 2. Sludge inlet mechanism; 3. Water outlet mechanism; 4. Plate and frame assembly; 5. Filter press assembly; 6. Push plate assembly; 7. Control panel; 8. Base frame; 9. Belt conveyor; 10. Collection box; 11. Casters; 12. Dust suction pipe; 13. Suction port; 14. Air extraction pipe; 15. Blowing nozzle; 16. Air supply pipe; 17. Support frame; 18. Fully enclosed electric cylinder; 19. Cleaning brush; 20. Sludge unloading assembly. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The embodiments of this utility model will be described below based on its overall structure.

[0036] Example 1:

[0037] A high-pressure plate and frame sludge filter press dewatering machine, such as Figures 1-7As shown, the system includes a frame 1 and a base frame 8, with the base frame 8 located below the frame 1. A collection box 10 is installed inside the lower part of the base frame 8, detachably connected to the base frame 8. A handle is fixed to the outer surface of the collection box 10, and casters 11 are connected to both sides of the bottom of the collection box 10. A support frame 17 is connected inside the base frame 8, with a fully enclosed electric cylinder 18 mounted on top of the support frame 17. A cleaning brush 19 is connected to the output end of the fully enclosed electric cylinder 18, and the cleaning brush 19 is slidably connected to the bottom of the belt conveyor 9. Suction pipes 12 and blowing nozzles 15 penetrate the outer surface and back sides of the base frame 8. Multiple blowing nozzles 15 are arranged in a mirror-symmetrical, staggered pattern. One end of each blowing nozzle 15 is connected to an air supply pipe 16. Suction ports 13 are opened at the bottom and one side of the suction pipes 12, with multiple suction ports 13 arranged in eight groups. These eight groups of suction ports 13 are located on one side and vertically at the bottom of four groups of suction pipes 12. The suction pipe 12 is connected to an air extraction pipe 14 at one end. During the operation of the belt conveyor 9, the cleaning brush 19 is driven to reciprocate back and forth by the output end of the fully enclosed electric cylinder 18, thereby cleaning the bottom of the belt conveyor 9 and effectively removing mud cake residue on the belt conveyor 9. At the same time, the fully enclosed electric cylinder 18 has a protection level of IP65 or above, which effectively prevents the dust raised by the mud cake from entering the cylinder body and causing wear. Most of the mud cake residue that is cleaned off will fall into the collection box 10. The blowing nozzle 15 uses a Roots blower or air compressor as an air source to use compressed air to horizontally blow the bottom of the belt conveyor 9, so that stubborn mud cakes can be loosened and fall off, so as to achieve a better cleaning effect in conjunction with the cleaning brush 19. At the same time, the suction ports 13 on the side and bottom of the suction pipe 12 extract the dust raised in the cleaned area and send it into the bag dust collector to prevent dust from flying out and causing dust pollution to the environment.

[0038] See Figure 1 , Figure 2 , Figure 3 and Figure 7In the above embodiment, a sludge inlet mechanism 2 and a water outlet mechanism 3 are respectively provided on one side of the frame 1. A plate and frame assembly 4, a filter press assembly 5, and a pusher plate assembly 6 are respectively provided inside the frame 1. The sludge inlet mechanism 2 and the water outlet mechanism 3 are both connected to the plate and frame assembly 4. A control panel 7 is installed on one side of the frame 1. A sludge discharge assembly 20 is provided at the lower part of the frame 1. A belt conveyor 9 is installed at the upper part of the base frame 8, located below the sludge discharge assembly 20. The sludge discharge assembly 20 is located below the plate and frame assembly 4 and the filter press assembly 5. Sludge is fed through the sludge inlet machine. The sludge is fed into the plate and frame assembly 4 by the filter press 5, which pressurizes the plate and frame assembly 4, causing the sludge to separate out water under pressure. The water is discharged through the water outlet mechanism 3. After the filter press is completed, the sludge water content is reduced significantly, forming a sludge cake. Then the filter press 5 moves away from the plate and frame assembly 4 and stops applying pressure. At the same time, the push plate assembly 6 disperses the plate and frame assembly 4 to facilitate the sludge cake falling off. The sludge discharge assembly 20 opens to guide the sludge cake, causing it to fall onto the top of the belt conveyor 9. After the belt conveyor 9 starts, it sends the sludge cake away for subsequent recycling or landfill.

[0039] Example 2:

[0040] Based on the above embodiment one, the following settings are now adopted to facilitate the replacement of damaged structures.

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 In the above embodiment, the longitudinal section of the suction pipe 12 is shaped like the number "7". The suction pipe 12 is detachably connected to the air extraction pipe 14 by bolts. The longitudinal section of the blowing nozzle 15 is shaped like the number "L". The blowing nozzle 15 is detachably connected to the air supply pipe 16 by bolts. Since the blowing nozzle 15 is L-shaped and the suction pipe 12 is shaped like the number "7", the suction pipe 12 and the blowing nozzle 15 are staggered from the air extraction pipe 14 and the air supply pipe 16 to facilitate disassembly. Therefore, the operator can remove the bolt between the suction pipe 12 and the air extraction pipe 14 and pull out the suction pipe 12 horizontally for cleaning or replacement. Similarly, the blowing nozzle 15 can be replaced by removing the bolt between the blowing nozzle 15 and the air supply pipe 16.

[0042] The bracket 17 is detachably connected to the base frame 8 by bolts, and the cleaning brush 19 is detachably connected to the output end of the fully enclosed electric cylinder 18 by nuts. The operator removes the bolts between the bracket 17 and the base frame 8 to facilitate the removal of the bracket 17. After the bracket 17 is removed, the operator can remove the nut on the output end of the fully enclosed electric cylinder 18 to facilitate the replacement of the cleaning brush 19. After the cleaning brush 19 is replaced, the operator puts the nut back on to limit the cleaning brush 19. Then the operator puts the bracket 17 back in its original position and tightens it with bolts.

[0043] The implementation principle of this utility model is as follows: First, the exhaust pipe 14 is connected to an external bag filter with a fan through a pipeline. The fan can be a centrifugal fan, while the air delivery pipe 16 is connected to an external Roots blower or air compressor through a pipeline.

[0044] The working principle of the filter press is a well-known technology and is not the main direction of improvement in this technical solution, so it is only described briefly. Sludge is fed into the plate and frame assembly 4 through the sludge feeding mechanism 2. At the same time, the filter press assembly 5 pressurizes the plate and frame assembly 4, causing the sludge to be separated from water under pressure. The water is discharged through the water outlet mechanism 3. After the filter press is completed, the water content of the sludge is reduced significantly, forming a sludge cake. Then the filter press assembly 5 moves away from the plate and frame assembly 4 and stops applying pressure. At the same time, the push plate assembly 6 disperses the plate and frame assembly 4 to facilitate the sludge cake to fall off. The sludge discharge assembly 20 opens to guide the sludge cake, so that the sludge cake falls onto the top of the belt conveyor 9. After the belt conveyor 9 is started, it sends the sludge cake away for subsequent recycling or landfill.

[0045] During the operation of the belt conveyor 9, the cleaning brush 19 is driven to reciprocate back and forth by the output end of the fully enclosed electric cylinder 18, thereby cleaning the bottom of the belt conveyor 9 and effectively removing the mud cake residue on the belt conveyor 9. At the same time, the fully enclosed electric cylinder 18 has a protection level of IP65 or above, which effectively prevents the dust raised by the mud cake from entering the cylinder body and causing wear. Most of the mud cake residue that is cleaned off will fall into the collection box 10. The blowing nozzle 15 uses a Roots blower or air compressor as an air source to use compressed air to horizontally blow the bottom of the belt conveyor 9, so that stubborn mud cakes can be loosened and fall off, so as to cooperate with the cleaning brush 19 to achieve a better cleaning effect. At the same time, the suction port 13 on the side and bottom of the suction pipe 12 extracts the dust raised in the cleaned area and sends it into the bag dust collector to prevent dust from flying out and causing dust pollution to the environment.

[0046] When the structure is damaged and needs to be replaced, the staff will pull the collection box 10 out of the base frame 8. Then, the staff can crawl into the base frame 8 and remove the bolts between the bracket 17 and the base frame 8 to remove the bracket 17. After the bracket 17 is removed, the staff can remove the nut on the output end of the fully enclosed electric cylinder 18 to facilitate the replacement of the cleaning brush 19. After replacing the cleaning brush 19, the staff will put the nut back to limit the cleaning brush 19. Then, the staff will put the bracket 17 back in its original position and tighten it with bolts. It should be noted that the bristles of the cleaning brush 19 are preferably made of natural fibers, such as pig bristles. Therefore, even if the bristles of the cleaning brush 19 fall off or break and get mixed into the mud cake, they will not cause environmental pollution during subsequent composting, incineration, landfill and other treatments and are easy to degrade.

[0047] Because the blowing nozzle 15 is L-shaped and the suction pipe 12 is 7-shaped, the suction pipe 12 and the blowing nozzle 15 are staggered from the air extraction pipe 14 and the air delivery pipe 16 for easy disassembly. Therefore, the operator can remove the bolt between the suction pipe 12 and the air extraction pipe 14 and then pull out the suction pipe 12 horizontally for cleaning or replacement. Similarly, the blowing nozzle 15 can be replaced by removing the bolt between the blowing nozzle 15 and the air delivery pipe 16. It should be noted that the installation position of the suction pipe 12 should leave a certain gap between it and the bottom of the conveyor belt to facilitate the passage of the adhering mud cake and avoid the mud cake from colliding with the suction pipe 12 and falling off, which would affect subsequent cleaning. Moreover, the collection box 10, the suction pipe 12 and other cleaning structures are best set below the mud discharge area of ​​the belt conveyor 9. The figure of this technical solution shows that the belt conveyor 9 is relatively long, so it is set below the mud unloading assembly 20 for easy display.

[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-pressure plate and frame sludge filter press dewatering machine, comprising a frame (1) and a base frame (8), characterized in that: The base frame (8) is located below the frame (1); a collection box (10) is provided inside the base frame (8) at the bottom, and casters (11) are connected to both sides of the bottom of the collection box (10); a suction pipe (12) and a blower nozzle (15) are passed through the outer surface and back of the base frame (8), and an air supply pipe (16) is connected to one end of the blower nozzle (15); a suction port (13) is opened at the bottom and one side of the suction pipe (12), and an air extraction pipe (14) is connected to one end of the suction pipe (12); a bracket (17) is connected inside the base frame (8), and a fully enclosed electric cylinder (18) is installed on the top of the bracket (17), and a cleaning brush (19) is connected to the output end of the fully enclosed electric cylinder (18).

2. The high-pressure plate and frame sludge filter press dewatering machine according to claim 1, characterized in that: The frame (1) is provided with a sludge inlet mechanism (2) and a water outlet mechanism (3) on one side. The frame (1) is provided with a plate and frame assembly (4), a filter press assembly (5) and a push plate assembly (6) inside. The sludge inlet mechanism (2) and the water outlet mechanism (3) are connected to the plate and frame assembly (4). The frame (1) is provided with a control panel (7) on one side. The frame (1) is provided with a sludge unloading assembly (20) at the bottom inside.

3. The high-pressure plate and frame sludge filter press dewatering machine according to claim 2, characterized in that: A belt conveyor (9) is installed inside the upper part of the base frame (8), and the belt conveyor (9) is located below the sludge unloading assembly (20), which is located below the plate and frame assembly (4) and the filter press assembly (5).

4. The high-pressure plate and frame sludge filter press dewatering machine according to claim 1, characterized in that: The collection box (10) is detachably connected to the base frame (8), and a handle is fixed on the outer surface of the collection box (10).

5. The high-pressure plate and frame sludge filter press dewatering machine according to claim 1, characterized in that: The vacuum tubes (12) are provided in four pairs, and the four vacuum tubes (12) are distributed in a mirror image.

6. The high-pressure plate and frame sludge filter press dewatering machine according to claim 5, characterized in that: The suction port (13) is provided in multiple ways, and the multiple suction ports (13) are divided into eight groups. The eight groups of suction ports (13) are respectively located on one side and at the bottom of the four groups of suction pipes (12) and are vertically distributed.

7. The high-pressure plate and frame sludge filter press dewatering machine according to claim 6, characterized in that: The purge nozzles (15) are provided in multiple ways, and the multiple purge nozzles (15) are arranged in a mirror-symmetrical staggered manner.

8. The high-pressure plate and frame sludge filter press dewatering machine according to claim 3, characterized in that: The cleaning brush (19) is slidably connected to the bottom of the belt conveyor (9).

9. The high-pressure plate and frame sludge filter press dewatering machine according to claim 7, characterized in that: The suction pipe (12) has a longitudinal section in the shape of a "7" and is detachably connected to the air extraction pipe (14) by bolts. The blow nozzle (15) has a longitudinal section in the shape of an "L" and is detachably connected to the air supply pipe (16) by bolts.

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