A continuous sludge drying unit and its application method

Abstract

The present invention relates to the technical field of sludge treatment, and proposes a continuous sludge drying unit and an application method thereof, comprising a frame, a filter frame, and a driving mechanism, wherein a plurality of filter frames are arranged in parallel on the frame; the driving mechanism is arranged at one end of the frame, and the movable end of the driving mechanism is connected to one of the filter frames; it also comprises a traction rope, a winding assembly, and a mud scraping rope, wherein the traction rope is connected to a plurality of filter frames; the winding assembly is arranged at one side of the filter frame and is connected to the frame; a plurality of mud scraping ropes are arranged, one end of the mud scraping rope is connected to an end of the filter frame away from the winding assembly, and the other end is connected to the winding assembly. The present invention arranges a mud scraping rope on the filter frame, so that after the plurality of filter frames are separated by the driving mechanism in cooperation with the traction rope, the winding assembly can synchronously drive the mud scraping ropes on all the filter frames to be reeled up to remove the filter cakes adhered to the filter frames, and it has the advantage of high filter cake removal efficiency; at the same time, the mud scraping rope is used to scrape the mud cake, so the removal effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, and in particular to a continuous sludge drying unit and an application method thereof. Background Art

[0002] Sludge drying is an important sewage treatment process, which aims to reduce the water content of sludge, thereby reducing its volume and treatment cost, and improving the stability and availability of sludge. At present, the sludge filtration structure mainly includes belt filter press, plate and frame filter press, disc filter press and hydraulic filter press. Among them, the plate and frame filter press is widely used in occasions requiring high-purity filtration due to its advantages of high solid-liquid separation efficiency, high solid content of filter cake and high filtrate clarity, and has high treatment efficiency.

[0003] During the application of plate and frame filter press, the problem of filter cake sticking is easy to occur when the filter frames are separated. Therefore, in order to make the filter cake fall off normally, the conventional measure is manual cleaning, but this cleaning method is inefficient and is mainly suitable for filter presses with gradually separated single filter frames. At present, in order to improve the cake removal efficiency, plate and frame filter presses usually set ropes to separate all filter frames at once, so a cake removal structure with higher separation efficiency is needed.

[0004] The invention patent application with the existing application publication number CN110624289A discloses a chamber filter press for preventing mud cake from sticking to filter cloth and a method for separating mud cake from the chamber filter press, which comprises a frame, wherein the upper end of the filter cloth is fixed to a force-bearing plate, and the upper end of the filter cloth can be driven to separate from the filter plate through the force-bearing plate, and at the same time, under the action of the elastic force of the tension spring, the force-bearing plate can be driven to vibrate, and the force-bearing plate drives the filter cloth to vibrate, so that the mud cake remaining on the filter cloth that is difficult to fall off can be vibrated and separated;

[0005] There is also an invention patent with authorization announcement number CN110898481B, which discloses an automatic mud cake removal device for a filter press, including a mounting plate, a knocking assembly and a power assembly, etc.; a knocking assembly for knocking by rotating is installed on the outer side of the mounting plate, and a power assembly for providing power by sliding is installed on the outer side of the mounting plate.

[0006] As in the above two schemes, one uses the method of separating the filter cloth from the filter frame and vibrating to remove the filter cake, but this scheme is prone to damage the filter cloth; the other uses a power component to drive the connecting rod to knock and vibrate to remove the filter cake. The above power component is a common filter frame separation device, which is used to drive the filter frame for single separation, wherein the stroke of the wedge-shaped baffle and the arc baffle is very small, which will result in the inability to drive the connecting rod to achieve a large displacement, so the knocking force is small; and because the filter frame is usually heavy, the vibration is difficult to transmit, and coupled with the surface tension and capillary action of the residual water, the vibration caused by the above knocking is difficult to achieve a good filter cake separation effect; at the same time, the above two schemes are only suitable for removing a single filter frame, and the removal steps need to be repeated many times, which is inefficient. Summary of the invention

[0007] In view of this, the present invention proposes a continuous sludge drying unit and an application method thereof which has good filter cake removal effect and can remove filter cakes adhered to all filter frames at one time, so as to solve the problems of low removal efficiency and poor removal effect of existing filter cake removal devices.

[0008] The technical solution of the present invention is achieved in this way:

[0009] In one aspect, the present invention provides a continuous sludge drying unit, comprising a frame, a filter frame, and a driving mechanism, wherein:

[0010] A plurality of filter frames are arranged in parallel on the frame, and the plurality of filter frames are slidably connected to the frame;

[0011] The driving mechanism is arranged at one end of the frame, and the movable end of the driving mechanism is connected to one of the filter frames, and the driving mechanism is used to drive the filter frame to gather and disperse;

[0012] It also includes a traction rope, a winding assembly and a mud scraping rope, wherein:

[0013] The traction rope is connected to a plurality of filter frames;

[0014] The winding and unwinding assembly is arranged on one side of the filter frame and connected to the frame;

[0015] A plurality of scraper cables are provided, one end of the scraper cables is connected to an end of the filter frame away from the winding and unwinding assembly, and the other end is connected to the winding and unwinding assembly.

[0016] On the basis of the above technical solution, preferably, the unwinding assembly includes a bracket, an unwinding roller, a spline shaft and a motor, wherein:

[0017] The bracket is arranged on the filter frame; the winding roller is rotatably connected with the bracket and is relatively axially positioned;

[0018] One end of the scraper rope is connected to the winding roller;

[0019] The spline shaft passes through the winding roller;

[0020] The motor and the frame are relatively fixed, and the main shaft of the motor is connected to the spline shaft.

[0021] On the basis of the above technical solution, preferably, the unwinding assembly further includes a positioning frame and a guide frame, wherein:

[0022] The positioning frame is arranged at the corner above the side of the filter frame away from the spline shaft;

[0023] The guide frame and the positioning frame are arranged opposite to each other;

[0024] One end of the scraper rope passes through the positioning frame and is fixed, and the other end passes through the guide frame and is connected to the winding roller, and the scraper rope can slide relative to the guide frame.

[0025] On the basis of the above technical solution, preferably, the positioning frame includes an angle plate and a sleeve, wherein:

[0026] The corner plate is connected to the filter frame;

[0027] Two sleeves are provided, the two sleeves are connected to the angle plate, and the two sleeves have a planar structure on the sides that are relatively far away from each other;

[0028] Two scraper cables are provided for each filter frame. The two scraper cables are arranged oppositely on both sides of the filter frame, and the scraper cables penetrate the filter frame, the angle plate and the sleeve.

[0029] The guide frame has the same structure as the positioning frame.

[0030] On the basis of the above technical solution, preferably, it further includes a sliding seat, and the winding assembly also includes an end frame, wherein:

[0031] The sliding seat is arranged on the side of the filter frame and is slidably matched with the frame;

[0032] One end of the bracket away from the unwinding roller is hinged to the sliding seat;

[0033] There are two end brackets on the frame;

[0034] The motor is arranged on one of the end frames, and the main shaft of the motor passes through the end frame;

[0035] One end of the spline shaft away from the motor main shaft is rotatably connected to the other end bracket.

[0036] On the basis of the above technical solution, preferably, it further comprises a guide member, the guide member comprises a connecting plate and a guide shaft, wherein:

[0037] The connecting plates are provided on both the frame and the filter frame;

[0038] Both ends of the guide shaft are fixedly connected to the frame through a connecting plate;

[0039] The connecting plate on the filter frame is slidably connected with the guide shaft;

[0040] The filter frame is a rectangular three-dimensional structure, and traction ropes are arranged on the top surface, left side surface and right side surface of the filter frame.

[0041] On the basis of the above technical solution, preferably, it also includes a cleaning component, the cleaning component includes a water supply pipe and a spray pipe, wherein,

[0042] The water supply pipe is relatively fixed to the frame;

[0043] A plurality of nozzles are arranged in parallel on the water supply pipe, the plurality of nozzles are all connected with the water supply pipe, and the plurality of nozzles correspond to the deployment positions of the plurality of filter frames.

[0044] On the basis of the above technical solution, preferably, it further includes a water tank, and the cleaning assembly also includes a water pump and a connecting pipe, wherein:

[0045] The water tank is relatively fixed to the frame, and the water tank is provided with a shallow water area and a deep water area, and a drainage outlet is provided in the shallow water area;

[0046] The water pump is connected to the frame, and the water inlet of the water pump is connected to the deep water area through a connecting pipe, and the water outlet of the water pump is connected to the water supply pipe through a connecting pipe.

[0047] On the basis of the above technical solution, preferably, the scraper rope comprises a scraper rope body and a bending portion, wherein:

[0048] One end of the scraper cable body is connected to the end of the filter frame away from the winding assembly, and the other end is connected to the winding assembly;

[0049] The bent portion is serially connected to the middle portion of the scraper cable body; when the scraper cable body is released by the winding and unwinding assembly, the bent portion corresponds to the middle portion of the filter frame.

[0050] On the other hand, the present invention provides an application method of the above-mentioned continuous sludge drying unit, comprising the following steps:

[0051] S1, the filter frame is pulled to move by the driving mechanism, and the multiple filter frames are separated by the traction rope;

[0052] S2, releasing the scraper rope through the winding and unwinding assembly;

[0053] S3, driving multiple filter frames together through a driving mechanism;

[0054] S4, inject sludge into the filter frame;

[0055] S5. Supply gas or liquid into the filter frame to squeeze the sludge to achieve dehydration and drying;

[0056] S6, pulling the filter frame to move by the driving mechanism, and using the pulling rope to separate the multiple filter frames;

[0057] S7, reeling in the scraper rope through the reeling assembly, and using the scraper rope to scrape off the mud cake.

[0058] The continuous sludge drying unit and its application method of the present invention have the following beneficial effects compared with the prior art:

[0059] (1) A scraper rope is arranged on the filter frame, and a winding assembly is arranged on the unit frame. After the multiple filter frames are separated by the driving mechanism and the traction rope, the winding assembly can synchronously drive the scraper ropes on all the filter frames to be wound up to remove the filter cakes adhered to the filter frames. It has the advantage of high filter cake removal efficiency. At the same time, the scraper rope removes the mud cake by scraping, so the removal effect is better.

[0060] (2) In the winding assembly, the winding roller is installed on the filter frame through a bracket to wind up the scraper rope. The winding rollers on multiple filter frames are connected in series through a spline shaft. In this way, when the driving mechanism drives the filter frame to separate and gather, it will not interfere with the movement of the filter frame. When the motor rotates, it can drive the winding rollers on all the filter frames to rotate. In this way, the components do not interfere with each other and the layout is reasonable;

[0061] (3) In the winding and unwinding assembly, the end of the scraper rope is fixed by a positioning frame, and the scraper rope is guided by a guide frame, so that the scraper rope can correspond to the side of the filter frame when it is released to ensure the removal effect; the positioning frame and the guide frame are both composed of angle plates and sleeves, which is convenient for connecting the filter frame and laying the scraper rope. At the same time, the scraper rope runs through the filter frame, which can avoid the existence of the scraper rope, resulting in gaps when the filter frames are close together, so as to ensure a good filter pressing effect;

[0062] (4) In the winding assembly, the bracket for installing the winding roller is hinged on the sliding frame, and the spline shaft is installed through the end frame. In this way, after the spline shaft passes through the winding roller, the position of the bracket, the winding roller and the filter frame will be relatively stable. In this way, no fasteners are required to fix the bracket and the filter frame, which can improve the convenience of assembly;

[0063] (5) By providing a guide member consisting of a connecting plate and a guide shaft, the filter frame can be prevented from shaking when it moves, thereby preventing the spline shaft from being damaged by radial force;

[0064] (6) By setting up a cleaning component, in which the deployment position of the nozzle corresponding to the filter frame is set on the water supply pipe, after the filter frames are separated from each other, when the reeling assembly reels the scraper rope, the nozzle can flush the scraper rope and the reeling roller to prevent the sludge from adhering to the reeling roller, thereby ensuring the reliability of the application. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0066] Figure 1 It is a three-dimensional diagram of the continuous sludge drying unit of the present invention;

[0067] Figure 2 For the present invention Figure 1 A magnified view of the structure at point A;

[0068] Figure 3 It is a front view of the continuous sludge drying unit of the present invention;

[0069] Figure 4 It is a top view of the continuous sludge drying unit of the present invention;

[0070] Figure 5 It is a side view of the continuous sludge drying unit of the present invention;

[0071] Figure 6 A three-dimensional diagram of a filter frame of a continuous sludge drying unit of the present invention provided with a sludge scraping rope;

[0072] Figure 7 For the present invention Figure 6 A magnified view of the structure at point B;

[0073] Figure 8 A side view of a filter frame of a continuous sludge drying unit of the present invention with a sludge scraping rope arranged thereon;

[0074] Fig. 9 This is a structural diagram of the cleaning components and water tank layout of the continuous sludge drying unit of the present invention;

[0075] In the figure: 1. frame; 2. filter frame; 3. driving mechanism; 4. traction rope; 5. winding assembly; 51. bracket; 52. winding roller; 53. spline shaft; 54. motor; 55. positioning frame; 551. angle plate; 552. sleeve; 56. guide frame; 57. end frame; 6. scraper rope; 61. scraper rope body; 62. bending part; 7. sliding seat; 8. guide member; 81. connecting plate; 82. guide shaft; 9. cleaning assembly; 91. water supply pipe; 92. nozzle; 93. water pump; 94. connecting pipe; 10. water tank; 1001. shallow water area; 1002. deep water area. DETAILED DESCRIPTION

[0076] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0077] like Figures 1 to 9 As shown, the continuous sludge drying unit of the present invention includes a frame 1, a filter frame 2, a driving mechanism 3, a traction rope 4, a winding and unwinding assembly 5, a sludge scraping rope 6, a sliding seat 7, a guide 8, a cleaning assembly 9 and a water tank 10.

[0078] like Figures 1 to 5 As shown, a plurality of filter frames 2 are arranged in parallel on the frame 1, and the plurality of filter frames 2 are slidably connected to the frame 1; a driving mechanism 3 is arranged at one end of the frame 1, and a movable end of the driving mechanism 3 is connected to one of the filter frames 2, and the driving mechanism 3 is used to drive the filter frames 2 to gather and disperse;

[0079] As described above, it is a common plate-frame filter press structure, in which a plurality of filter frames 2 are brought together by a driving mechanism 3, muddy water is then injected, and then the injected muddy water is squeezed by injecting water flow or gas to filter out the water;

[0080] The specific driving mechanism 3 adopts a linear driving component such as a hydraulic cylinder.

[0081] like Figures 1 to 5 As shown, the traction rope 4 is connected to a plurality of filter frames 2; the winding assembly 5 is arranged on one side of the filter frame 2 and connected to the frame 1; a plurality of scraping ropes 6 are arranged, one end of the scraping rope 6 is connected to an end of the filter frame 2 away from the winding assembly 5, and the other end is connected to the winding assembly 5;

[0082] As in the above structure, the traction rope 4 is connected to the filter frame 2. Specifically, when the traction rope 4 is arranged, when multiple filter frames 2 are close together, a section is left between the connection points of the traction rope 4 and two adjacent filter frames 2, so that after the driving mechanism 3 drives the multiple filter frames 2 to separate, there is a certain gap between the adjacent filter frames 2 for the filter cake to be removed;

[0083] When the driving mechanism 3 and the traction rope 4 cooperate to drive the multiple filter frames 2 to separate, the winding and unwinding assembly 5 can reel in the scraper rope 6, so that the filter cake can be scraped off by the scraper rope;

[0084] Then the reeling assembly 5 unwinds the scraper rope 6 again, and after the multiple filter frames 2 are gathered together, the scraper rope 6 is located between two filter frames 2, so that when the muddy water is injected and squeezed to dehydrate, the scraper rope 6 is wrapped, so that the scraper rope 6 can effectively remove the filter cake when it is reeled;

[0085] In this structure, the scraper ropes 6 on all filter frames 2 can be rolled up by the winding and unwinding assembly 5 to remove the filter cakes on all filter frames 2 at the same time, which has the advantage of high filter cake removal efficiency; at the same time, the scraper ropes 6 remove the mud cake by scraping, so the removal effect is better;

[0086] Specifically, the scraper cable 6 is arranged to fit the filter cloth of the filter frame 2 as closely as possible to reduce the phenomenon of sludge being broken and adhering to the filter cloth.

[0087] like Figure 2 As shown, the winding assembly 5 includes a bracket 51, a winding roller 52, a spline shaft 53 and a motor 54, wherein the bracket 51 is arranged on the filter frame 2; the winding roller 52 is rotatably connected to the bracket 51 and is relatively axially positioned; one end of the scraping rope 6 is connected to the winding roller 52; the spline shaft 53 penetrates the winding roller 52; the motor 54 is relatively fixed to the frame 1, and the main shaft of the motor 54 is connected to the spline shaft 53;

[0088] As shown in the above structure, the unwinding roller 52 is installed on the filter frame 2 through the bracket 51, the motor 54 is connected to the frame 1, and the unwinding rollers 52 on all the filter frames 2 are connected in series through the spline shaft 53 to be used for winding up the scraping rope 6; in this way, when the driving mechanism 3 drives the filter frame 2 to separate and gather, it will not interfere with the movement of the filter frame 2, and when the motor 54 rotates, it can drive the unwinding rollers 52 on all the filter frames 2 to rotate through the spline shaft 53, so as to synchronously rewind the unwinding rollers 52 on all the filter frames 2 and remove all the filter cakes at the same time, so that the components do not interfere with each other and the layout is reasonable.

[0089] like Figure 6 As shown, the winding assembly 5 further includes a positioning frame 55 and a guide frame 56, wherein the positioning frame 55 is arranged at the corner above the side of the filter frame 2 away from the spline shaft 53; the guide frame 56 is arranged opposite to the positioning frame 55; one end of the scraper rope 6 passes through the positioning frame 55 and is fixed, and the other end passes through the guide frame 56 and is connected to the winding roller 52, and the scraper rope 6 can slide relative to the guide frame 56;

[0090] As in the above structure, the scraper rope 6 is positioned and fixed by the positioning frame 55 and the guide frame 56; during assembly, the positioning frame 55 and the guide frame 56 are relatively arranged at the two corners of the filter frame 2, and then the scraper rope 6 is inserted, and the scraper rope 6 is fixedly connected to the positioning frame 55 and cooperates with the guide frame 56, so that the middle section of the scraper rope 6 can be located on one side of the filter frame 2, so that the filter cake can cover the middle section of the scraper rope 6 when filtering water, and then the scraper rope 6 can be rolled up to remove the filter cake.

[0091] like Figure 7As shown, the positioning frame 55 includes an angle plate 551 and a sleeve 552, wherein the angle plate 551 is connected to the filter frame 2; two sleeves 552 are provided, the two sleeves 552 are connected to the angle plate 551, and the relatively far sides of the two sleeves 552 are planar structures; two scraping ropes 6 are provided corresponding to one filter frame 2, the two scraping ropes 6 are relatively arranged on both sides of the filter frame 2, and the scraping ropes 6 pass through the filter frame 2, the angle plate 551 and the sleeve 552; the guide frame 56 has the same structure as the positioning frame 55;

[0092] As in the above structure, the positioning frame 55 is fitted with the corners of the filter frame 2 through the angle plate 551, and the angle plate 551 and the filter frame 2 are connected and fixed with fasteners such as bolts to facilitate disassembly and maintenance;

[0093] The sleeve 552 in the positioning frame 55 is used to fix the scraper cable 6. After the scraper cable 6 passes through the sleeve 552, the end of the scraper cable 6 can be fixed by tying a knot or connecting a limit plate.

[0094] The guide frame 56 and the positioning frame 55 adopt the same structure, and the sleeve of the guide frame 56 is slidably matched with the scraper cable 6 to guide the scraper cable 6;

[0095] In the structure of the positioning frame 55 and the guide frame 56, two sleeves 552 are provided, so that the scraping ropes 6 are arranged on both sides of the filter frame 2 to achieve two-way scraping; the two sleeves 552 are relatively far away from each other and have a flat structure to avoid protruding from the filter frame 2;

[0096] Specifically, the axial length of the unwinding roller 52 is understood as the width. The unwinding roller 52 is the component with the largest width in the unwinding component 5, and the width of the unwinding roller 52 is smaller than the width of the filter frame 2. In this way, when multiple filter frames 2 are gathered together, component interference problems can be prevented.

[0097] The plate and frame filter press is affected by the opening method and the filter pressure supply method. The filter frame 2 that has been displaced previously usually does not adhere to the filter cake, but the filter frame 2 that has been displaced later will adhere to the filter cake. That is, the filter cake usually adheres to the side of the filter frame 2 that faces the opening direction. Therefore, the scraper cable 6 can be set only on one side of the filter frame 2.

[0098] In the layout structure of the scraper cable 6, the scraper cable 6 passes through the filter frame 2. Since the scraper cable 6 needs to be connected to the winding assembly 5, the through-structure can avoid the existence of the scraper cable 6, which causes gaps when the filter frames 2 are close to each other, so as to ensure a good filtration effect; at the same time, this also makes the scraper cable 6 closer to the filter plate, which is conducive to improving the scraping effect.

[0099] like Figure 2As shown, the winding assembly 5 also includes an end frame 57, wherein the sliding seat 7 is arranged on the side of the filter frame 2 and slides with the frame 1; the end of the bracket 51 away from the winding roller 52 is hinged to the sliding seat 7; two end frames 57 are arranged on the frame 1; the motor 54 is arranged on one of the end frames 57, and the main shaft of the motor 54 passes through the end frame 57; the end of the spline shaft 53 away from the main shaft of the motor 54 is rotatably connected to the other end frame 57;

[0100] As in the above structure, the sliding seat 7 is used to connect the filter frame 2 with the frame 1 to support the filter frame 2 to slide on the frame 1;

[0101] The end frame 57 is arranged on the frame 1 for mounting the motor 54 and the spline shaft 53, so that the spline shaft 53, the motor 54 and the end frame 57 are fixed relative to the frame 1, and the end of the spline shaft 53 away from the motor 54 is rotatably matched with the end frame 57 by a bearing;

[0102] When installing the bracket 51, it is hinged with the sliding seat 7, so it only needs to be locked and fixed with a pin shaft or a bolt. After that, the spline shaft 53 passes through the winding roller 52 on the bracket 51, and the positioning of the bracket 51 is achieved. It does not need to use fasteners to lock and fix the bracket 51 and the sliding seat 7, so it has the advantages of simple structure and easy assembly, and is also convenient for subsequent disassembly and maintenance.

[0103] like Figure 2 As shown, the guide member 8 includes a connecting plate 81 and a guide shaft 82, wherein the connecting plate 81 is provided on both the frame 1 and the filter frame 2; both ends of the guide shaft 82 are fixedly connected to the frame 1 through a connecting plate 81; the connecting plate 81 on the filter frame 2 is slidably connected to the guide shaft 82; the filter frame 2 is a rectangular three-dimensional structure, and the top surface, left side surface and right side surface of the filter frame 2 are provided with a traction rope 4;

[0104] As in the above structure, by providing a guide member 8 consisting of a connecting plate 81 and a guide shaft 82, when the filter frame 2 moves, the filter frame 2 will slide with the guide shaft 82 through the connecting plate 81 to avoid the filter frame 2 from shaking, thereby avoiding the problem of damage to the spline shaft caused by radial force;

[0105] In this structure, in order to reduce the radial force on the guide shaft 82 and the spline shaft 53, traction ropes 4 are set on the top surface, left side surface and right side surface of the filter frame 2 to apply uniform pulling force to the filter frame 2 as much as possible, so that the filter frame 2 can translate and reduce shaking.

[0106] In some embodiments, the top surface, the left side surface and the right side surface of the filter frame 2 are matched with the frame 1 through the guide member 8.

[0107] like Figure 1 , Figure 3 , Figure 5 and Fig. 9 As shown, the cleaning assembly 9 includes a water supply pipe 91 and a spray pipe 92, wherein the water supply pipe 91 is relatively fixed to the frame 1; a plurality of spray pipes 92 are arranged in parallel on the water supply pipe 91, and the plurality of spray pipes 92 are all connected to the water supply pipe 91, and the plurality of spray pipes 92 correspond to the deployment positions of the plurality of filter frames 2;

[0108] As in the above structure, since the present technical solution adopts a scraping method to remove the filter cake, sludge will adhere to the scraping rope. In order to avoid affecting the normal winding and unwinding work, the sludge needs to be removed;

[0109] Specifically, after the filter frame 2 is unfolded, the winding roller 52 and the scraper rope 6 installed on the filter frame 2 correspond to the nozzle 92. At this time, water is supplied to the water supply pipe 91, and the water flows through the nozzle 92 to flush the winding roller 52 and the scraper rope 6, thereby preventing sludge adhesion from affecting subsequent use.

[0110] In some embodiments, the water supply pipe 91 is arranged parallel to the spline shaft 53 , and both ends of the water supply pipe 91 are connected to two end frames 57 .

[0111] like Figure 1 and Fig. 9 As shown, the cleaning assembly 9 also includes a water pump 93 and a connecting pipe 94, wherein the water tank 10 is relatively fixed to the frame 1, and the water tank 10 is provided with a shallow water area 1001 and a deep water area 1002, and the shallow water area 1001 is provided with a drain; the water pump 93 is connected to the frame 1, and the water inlet of the water pump 93 is connected to the deep water area 1002 through a connecting pipe 94, and the water outlet of the water pump 93 is connected to the water supply pipe 91 through a connecting pipe 94;

[0112] As in the above structure, the water tank 10 is a standard configuration of the plate filter press, which is used to convey the water flow squeezed out from the filter frame 2; since the water squeezed out of the plate filter press has a high degree of cleanliness, the water squeezed out is directly used for flushing in this solution;

[0113] In the structure of the water tank 10, it is divided into two parts, a shallow water area 1001 and a deep water area 1002, wherein the deep water area 1002 is used to store water, and the excess water is directly discharged through the drain outlet at the end of the shallow water area 1001;

[0114] When supplying water to the nozzle 92, the water pump 93 directly draws water from the deep water area 1002 through the connecting pipe 94, and supplies the water flow to the water supply pipe 91 through another connecting pipe 94. The water flow can then be sprayed out through the nozzle 92 to flush the winding and unwinding assembly 5 and the scraper rope 6.

[0115] In some embodiments, the water tank 10 is a closed structure, the connecting pipe 94 penetrates into the water tank 10, and the water outlet of the filter frame 2 also penetrates into the water tank 10 through a pipe to prevent flushing sewage from splashing into the water tank.

[0116] like Figure 6 and Figure 8 As shown, the scraper cable 6 includes a scraper cable body 61 and a bent portion 62, wherein one end of the scraper cable body 61 is connected to an end of the filter frame 2 away from the winding assembly 5, and the other end is connected to the winding assembly 5; the bent portion 62 is serially connected to the middle of the scraper cable body 61; when the winding assembly 5 releases the scraper cable body 61, the bent portion 62 corresponds to the middle of the filter frame 2;

[0117] As shown in the above structure, in order to further improve the scraping effect of the scraper cable 6, it is composed of two parts: a scraper cable body 61 and a bending part 62, wherein the scraper cable body 61 can be a linear cable to avoid affecting the winding; the bending part 62 is bent, so that after the sludge is pressed and filtered, the bending part 62 has a larger area to contact the filter cake to improve the scraping effect;

[0118] Specifically, the bending portion 62 is made of rubber material and has a wavy structure to ensure the scraping effect and avoid damaging the filter cloth during filter pressing.

[0119] The application method of the continuous sludge drying unit of the present invention comprises the following steps:

[0120] S1, the filter frame 2 is pulled to move by the driving mechanism 3, and the plurality of filter frames 2 are separated by the pulling rope 4;

[0121] S2, releasing the scraper rope 6 through the winding assembly 5;

[0122] S3, driving the plurality of filter frames 2 together through the driving mechanism 3;

[0123] S4, injecting sludge into filter frame 2;

[0124] S5, supplying gas or liquid into the filter frame 2 to squeeze the sludge to achieve dehydration and drying;

[0125] S6, the filter frame 2 is pulled to move by the driving mechanism 3, and the plurality of filter frames 2 are separated by the pulling rope 4;

[0126] S7, reeling in the scraper rope 6 through the reeling assembly 5, and using the scraper rope 6 to scrape off the mud cake.

[0127] The above are only preferred embodiments of the present invention and are 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 continuous sludge drying unit, comprising a frame (1), a filter frame (2), and a driving mechanism (3), wherein: A plurality of filter frames (2) are arranged in parallel on the frame (1), and the plurality of filter frames (2) are slidably connected to the frame (1); The driving mechanism (3) is arranged at one end of the frame (1), and the movable end of the driving mechanism (3) is connected to one of the filter frames (2), and the driving mechanism (3) is used to drive the filter frame (2) to gather and disperse; It is characterized in that it also includes a traction rope (4), a winding and unwinding assembly (5) and a mud scraping rope (6), wherein: The traction rope (4) is connected to a plurality of the filter frames (2); The winding and unwinding assembly (5) is arranged on one side of the filter frame (2) and is connected to the frame (1); A plurality of scraper cables (6) are provided, one end of the scraper cables (6) being connected to an end of the filter frame (2) away from the winding and unwinding assembly (5), and the other end of the scraper cables (6) being connected to the winding and unwinding assembly (5); The winding assembly (5) comprises a bracket (51), a winding roller (52), a spline shaft (53) and a motor (54), wherein the bracket (51) is arranged on the filter frame (2); the winding roller (52) is rotatably connected to the bracket (51) and is relatively axially positioned; one end of the scraper rope (6) is connected to the winding roller (52); the spline shaft (53) passes through the winding roller (52); the motor (54) is relatively fixed to the frame (1), and the main shaft of the motor (54) is connected to the spline shaft (53); The winding assembly (5) further comprises a positioning frame (55) and a guide frame (56), wherein the positioning frame (55) is arranged at a corner above a side of the filter frame (2) away from the spline shaft (53); the guide frame (56) is arranged opposite to the positioning frame (55); one end of the scraper rope (6) passes through the positioning frame (55) and is fixed, and the other end passes through the guide frame (56) and is connected to the winding roller (52), and the scraper rope (6) can slide relative to the guide frame (56).

2. The continuous sludge drying unit according to claim 1, characterized in that: The positioning frame (55) comprises a corner plate (551) and a sleeve (552), wherein: The corner plate (551) is connected to the filter frame (2); Two sleeves (552) are provided, the two sleeves (552) are connected to the angle plate (551), and the two sleeves (552) have a planar structure on the sides that are relatively far away from each other; Two of the scraping ropes (6) are provided for each filter frame (2), the two scraping ropes (6) are arranged opposite to each other on two sides of the filter frame (2), and the scraping ropes (6) penetrate the filter frame (2), the angle plate (551) and the sleeve (552); The guide frame (56) has the same structure as the positioning frame (55).

3. The continuous sludge drying unit according to claim 1, characterized in that: It also includes a sliding seat (7), and the winding and unwinding assembly (5) also includes an end frame (57), wherein: The sliding seat (7) is arranged on the side of the filter frame (2) and is slidably matched with the frame (1); One end of the bracket (51) away from the unwinding roller (52) is hingedly connected to the sliding seat (7); Two end frames (57) are arranged on the frame (1); The motor (54) is arranged on one of the end frames (57), and the main shaft of the motor (54) passes through the end frame (57); One end of the spline shaft (53) away from the main shaft of the motor (54) is rotatably connected to the other end frame (57).

4. The continuous sludge drying unit according to any one of claims 1 to 3, characterized in that: It also includes a guide member (8), the guide member (8) including a connecting plate (81) and a guide shaft (82), wherein: The connecting plate (81) is arranged on both the frame (1) and the filter frame (2); Both ends of the guide shaft (82) are fixedly connected to the frame (1) via a connecting plate (81); The connecting plate (81) on the filter frame (2) is slidably connected to the guide shaft (82); The filter frame (2) is a rectangular three-dimensional structure, and the top surface, left side surface and right side surface of the filter frame (2) are all provided with the traction rope (4).

5. The continuous sludge drying unit according to any one of claims 1 to 3, characterized in that: It also includes a cleaning component (9), wherein the cleaning component (9) includes a water supply pipe (91) and a spray pipe (92), wherein: The water supply pipe (91) is relatively fixed to the frame (1); A plurality of the nozzles (92) are arranged in parallel on the water supply pipe (91), the plurality of nozzles (92) are all connected to the water supply pipe (91), and the plurality of nozzles (92) correspond to the deployment positions of the plurality of filter frames (2).

6. The continuous sludge drying unit according to claim 5, characterized in that: It also includes a water tank (10), and the cleaning assembly (9) also includes a water pump (93) and a connecting pipe (94), wherein: The water tank (10) is relatively fixed to the frame (1), and the water tank (10) is provided with a shallow water area (1001) and a deep water area (1002), and the shallow water area (1001) is provided with a drainage outlet; The water pump (93) is connected to the frame (1), and the water inlet of the water pump (93) is connected to the deep water area (1002) through a connecting pipe (94), and the water outlet of the water pump (93) is connected to the water supply pipe (91) through a connecting pipe (94).

7. The continuous sludge drying unit according to any one of claims 1 to 3, characterized in that: The mud scraper cable (6) comprises a mud scraper cable body (61) and a bent portion (62), wherein: One end of the scraper cable body (61) is connected to an end of the filter frame (2) away from the winding and unwinding assembly (5), and the other end is connected to the winding and unwinding assembly (5); The bent portion (62) is serially connected to the middle portion of the mud scraper cable body (61); When the reeling assembly (5) unwinds the mud scraping cable body (61), the bent portion (62) corresponds to the middle portion of the filter frame (2).

8. An application method of the continuous sludge drying unit according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, pulling the filter frame (2) to move by means of the driving mechanism (3), and separating the plurality of filter frames (2) by means of the pulling rope (4); S2, releasing the mud scraping rope (6) through the winding and releasing assembly (5); S3, driving the plurality of filter frames (2) to move together by means of the driving mechanism (3); S4, injecting sludge into the filter frame (2); S5, supplying gas or liquid into the filter frame (2) to squeeze the sludge to achieve dehydration and drying; S6, pulling the filter frame (2) to move by means of the driving mechanism (3), and separating the plurality of filter frames (2) by means of the pulling rope (4); S7, reeling in the scraper rope (6) through the reeling and unreeling assembly (5), and scraping off the mud cake using the scraper rope (6).

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