A multi-station sludge filter press system

Abstract

The embodiment of the present application discloses a multi-station sludge filter pressing system, comprising a first station and a second station, the first station and the second station are connected in sequence front and back, and both the first station and the second station comprise a sludge feeding module, a coating separation module, a curing module and a frame; the sludge is stirred by a stirring bin in the sludge feeding module and then enters a position between two layers of filter cloth through a spiral conveying pump; the coating separation module is connected to the sludge feeding module to achieve tensioning, flattening, cleaning and air-drying, detection and correction of the filter cloth, and adjustment of the thickness of the upper and lower layers of the filter cloth covered with sludge and the single-layer sludge module; the pressure unit in the curing module squeezes and dries the sludge through a filter pressing frame to achieve a sludge filter pressing process, adopts a double-distributor and single-press double-station configuration, and performs double-station mobile filter pressing through the cooperation of the first station and the second station to achieve a continuous distribution and discharge process, thereby improving production efficiency.

Description

Technical Field

[0001] The present application relates to the field of sludge treatment systems, and in particular to a multi-station sludge filter press system. Background Art

[0002] At present, sludge can be roughly divided into three categories according to its source: water supply sludge, domestic sewage sludge and industrial sludge. The first two types of sludge are generally called municipal sludge, and industrial sludge can generally be divided into two categories: organic and inorganic sludge.

[0003] By comparing the characteristics of several typical mechanical filter press deep dehydration equipment currently used in the industry, we know that it is difficult for traditional mechanical filter presses such as vacuum filters, centrifugal dehydrators, belt filter presses and plate and frame filter presses to meet the national requirement of 60% moisture content for municipal sludge or organic industrial sludge, or even the high requirement of 40% moisture content proposed by some cities. Secondly, a large amount of reagents, lime, sawdust and other auxiliary materials need to be added during the sludge conditioning process. The cost of reagents added for each ton of sludge disposal is more than 150 yuan, which not only increases the cost, but also violates the original intention of volume reduction treatment and disposal. At the same time, the equipment cannot be automated and requires multiple people to cooperate in operation. The labor cost for disposing each ton of sludge is about 30 to 40 yuan. The moisture content of the treated sludge cannot be reduced below 60% and the volume is huge.

[0004] The sludge thin layer vertical filter press is a mechanical deep dehydration equipment. It uses advanced material distribution equipment to spread the sludge into a uniform thin layer before filtering. The vertical extrusion method can withstand a greater extrusion projection pressure of 15-40kg / cm 2 , which is about 5 times that of the plate and frame filter press. In addition, the filter cloth is used as a partition between the two layers of sludge to avoid the possibility of the plate and frame being crushed due to insufficient strength. In addition, this process does not require the addition of solid agents such as lime, does not change the sludge composition, and does not increase the dry solid content of the sludge. Therefore, it has stronger adaptability in terms of sludge types and subsequent disposal paths.

[0005] Patent CN114292004B introduces a sludge treatment system and a sludge treatment method, in which the sludge is sprayed from the discharge port onto the cloth roll of the conveying device of the spreading machine, the spreading machine covers the sludge between two layers of cloth rolls, and conveys the cloth roll covering the sludge to the frame basket for folding, the frame basket is loaded in the filter cloth feeding trolley, the folded cloth roll covering the sludge is transported by the filter cloth feeding trolley to the bottom of the heavy press and is pressed by the heavy press, the cloth roll covering the sludge after being pressed in the frame basket is transported by the filter cloth feeding trolley to the position of the feeder, the two layers of cloth rolls are separated by the feeder, and the sludge dropped due to the separation of the cloth rolls is transported and discharged by the cage machine, which has the effect of avoiding equipment idleness due to equipment waiting, so that compared with the structure of a single frame basket, the structure of multiple frame baskets can improve the treatment efficiency to a certain extent. However, compared with the single press frame mode, the configuration of multiple frame baskets, single spreading machine, single dialing machine and single press machine has improved the processing efficiency to a certain extent. However, during the single-cycle filtration process, the press head cannot work continuously and still needs to wait for one material distribution and two mud discharge processes, so the efficiency improvement is very small. Secondly, the dialing machine and spreading machine are distributed on both sides of the filter press module or arranged in a circle. The functions are relatively simple, the cost is relatively high, and the floor space is large.

[0006] Patent CN219194774U introduces a room temperature sludge drying system, which is characterized by an integrated cloth-retracting and cloth-releasing structure, and realizes automatic cloth-retracting and cloth-releasing, without the need for manual adjustment of the filter cloth, which greatly saves labor, reduces labor intensity, and significantly increases the output per unit time. However, the filter cloth is folded many times during the cloth-retracting process, and the automatic sludge-retracting and cloth-releasing system needs to move back and forth as a whole, with a large load, frequent movement, and low reliability; secondly, due to the different total movement strokes of the upper and lower layers of filter cloth, the tension of the filter cloth is different, and only the cloth-reeling roller is used to release and roll the filter cloth, which will cause a speed difference between the upper and lower filter cloths, and the filter cloth will be wrinkled; at the same time, the automatic sludge-retracting and cloth-releasing system is not equipped with a cleaning function, which affects the filter pressing effect after multiple filtrations.

[0007] Patent application CN113860687A introduces a sludge vertical box filter press drying system, which is characterized by a double press and four filter press frames. The four filter press frames are driven into different positions, namely, the material distribution, initial pressure, high pressure and discharge positions, by the rotation of the disc, so as to realize the continuous material distribution and discharge process and improve the sludge drying efficiency. However, the structure is relatively complex and the cost is high; secondly, the discharge and discharge processes are in the same time period, which requires multiple people to participate in the intervention at the same time, and the labor cost is high. Summary of the invention

[0008] In order to solve the problems existing in the prior art, the present invention provides a multi-station sludge filter pressing system.

[0009] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0010] The present application provides a multi-station sludge filter press system, comprising a first station and a second station, wherein the first station and the second station are connected in sequence front to back, and both the first station and the second station comprise a sludge feeding module, a coating separation module, a curing module and a frame;

[0011] The sludge feeding module includes a stirring chamber and a screw conveying pump. After the sludge is stirred in the stirring chamber, it enters the position between the two layers of filter cloth through the screw conveying pump.

[0012] The coating separation module is connected to the sludge feeding module, and the coating separation module includes a filter cloth self-adaptive structure and a thin layer cloth structure, and the filter cloth self-adaptive structure is used to tension, flatten, clean, air-dry, and detect and correct the filter cloth;

[0013] The solidification module includes a pressure unit and a filter press frame. The pressure unit squeezes and dries the sludge through the filter press frame to achieve a sludge filter press process.

[0014] Optionally, in some embodiments of the present application, the filter cloth self-adaptive structure is provided with two groups, and the two groups of the filter cloth self-adaptive structure respectively include:

[0015] A cloth reeling mechanism is arranged at one end of the frame and close to the sludge feeding module, the cloth reeling mechanism comprises a roller, and the roller reels and releases the filter cloth;

[0016] A tensioning mechanism is provided with a tensioning wheel and an adjusting slot, wherein the tensioning wheel is installed inside the adjusting slot, the adjusting slot is vertically arranged, and the tensioning wheel moves up and down relative to the adjusting slot;

[0017] A cleaning and air-drying mechanism, which is composed of a water tank, a high-pressure cleaning module, a drum, a high-pressure air-drying module and a squeezing roller, wherein the high-pressure cleaning module, the drum, the high-pressure air-drying module and the squeezing roller are all arranged in the water tank, and the filter cloth passes through the high-pressure cleaning module, the drum, the high-pressure air-drying module and the squeezing roller in sequence;

[0018] The spreading mechanism includes two rollers, and the two rollers are respectively arranged at two sides of the washing and drying mechanism, specifically at two sides of the water tank;

[0019] The detection function mechanism includes a detector, and the detector performs path detection on the filter cloth;

[0020] The cloth correction mechanism is provided with a roller, the roller is electrically connected to the detection function mechanism, and the roller corrects the path of the filter cloth;

[0021] The cloth feeding mechanism is provided with two pressing wheels, which press each other and rotate towards each other to control the movement of the filter cloth.

[0022] Optionally, in some embodiments of the present application, in the cleaning and air-drying mechanism, the high-pressure cleaning module includes a high-pressure pump, a high-pressure pipe and a nozzle, a plurality of the nozzles are provided, and the plurality of nozzles are evenly arranged at one side of the high-pressure pipe and connected to the high-pressure pipe, the high-pressure pipe is connected to the high-pressure pump, and the high-pressure pump delivers water to the high-pressure pipe;

[0023] Two high-pressure pipes are provided, the two high-pressure pipes are arranged opposite to each other and distributed on two sides of the filter cloth, and a spraying cavity is formed between the two high-pressure pipes, and the nozzle is arranged in the spraying cavity.

[0024] Optionally, in some embodiments of the present application, the cloth correcting mechanism further includes a motor, a screw, a screw guide rail, a screw slider, a bearing seat, a roller and a bearing seat;

[0025] The motor and the screw rod are fixedly connected, the screw rod slider has built-in threads, the screw rod slider is connected to the screw rod through the built-in threads, and is movably connected to the screw rod guide rail, the bearing seat is provided with a built-in joint bearing, the bearing seat is fixedly connected to the screw rod slider, and the bearing seat is fixedly installed on the frame.

[0026] The roller is fixedly connected to the bearing seat and the built-in spherical plain bearing in the bearing seat.

[0027] Optionally, in some embodiments of the present application, in the spreading mechanism, the two rollers are coaxially arranged and rotate coaxially, and the two rollers are axially connected, and both rollers are provided with threads, and the directions of the threads on the two rollers are in opposite directions.

[0028] Optionally, in some embodiments of the present application, in the curing module, the pressure applying unit includes an upper hydraulic cylinder, a lower hydraulic cylinder, a movable base and a track;

[0029] An upper pressing plate is provided at the output end of the upper hydraulic cylinder, a lower pressing plate is provided at the output end of the lower hydraulic cylinder, and the filter press frame is provided between the upper pressing plate and the lower pressing plate;

[0030] The lower hydraulic cylinder is arranged on the mobile base, and the mobile base moves linearly on the track through rollers.

[0031] Optionally, in some embodiments of the present application, the pressure-applying unit is disposed at a position connecting the first workstation and the second workstation, and the pressure-applying unit is a part of the first workstation and a part of the second workstation, respectively.

[0032] Optionally, in some embodiments of the present application, the thin layer cloth structure is composed of an upper belt conveyor, a lower belt conveyor and a pressure roller, the pressure roller is installed on the upper belt conveyor, the upper belt conveyor is fixed on the frame, a slider and a guide rail are provided under the lower belt conveyor, the guide rail is fixed on the frame, the slider is fixedly connected to the lower belt conveyor, the lower belt conveyor maintains relative linear movement with the frame through a driving mechanism, and the thickness of the single-layer sludge module is controlled by adjusting the distance between the pressure roller and the belt of the upper belt conveyor.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1. The equipment has a compact structure. Since the thin-layer fabric structure, fabric winding mechanism, tensioning mechanism, cleaning and drying mechanism, fabric spreading mechanism, detection function mechanism, fabric correction mechanism and fabric feeding mechanism in the first station are designed for the combination of sludge and filter cloth, it has the functions of filter cloth correction, flattening, fabric feeding and buffering, thus integrating functions into one and reducing the occupied space;

[0035] 2. The cloth reeling mechanism, tensioning mechanism, cleaning and drying mechanism, cloth spreading mechanism, detection function mechanism, cloth correcting mechanism and cloth feeding mechanism can realize the relative fixation of the filter cloth and the cloth reeling roller. Between adjacent processes, there is no need to manually pull the filter cloth and pass it through the multi-stage roller shaft, which reduces manual labor and improves efficiency.

[0036] 3. The first station and the second station are coordinated to perform double-station mobile filtration through the curing module in a yes-and-no manner, ensuring that the pressure unit in the curing module is always in the filtration state, thereby improving production efficiency;

[0037] 4. Cleaning tools, such as high-pressure air nozzles, high-pressure water nozzles or cleaning brushes, are set above the pressure plate of the pressure unit. After each solid pressing process, the escaped sludge is cleaned by the up and down movement of the pressure plate to prevent it from clogging the drainage channel and ensure the subsequent filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A schematic diagram of the overall structure of a multi-station sludge filter press system provided in an embodiment of the present application;

[0040] Figure 2This is a schematic diagram of the overall structure of the filter cloth self-adaptive structure in the coating separation module provided in an embodiment of the present application;

[0041] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0042] Figure 4 A schematic diagram of the overall structure of a high-pressure cleaning module provided in an embodiment of the present application;

[0043] Figure 5 A schematic diagram of the overall structure of the cloth correction mechanism provided in an embodiment of the present application;

[0044] Figure 6 A schematic diagram of the overall structure of the roller provided in an embodiment of the present application;

[0045] Figure 7 This is a schematic diagram of the overall structure of the pressure applying unit provided in an embodiment of the present application.

[0046] Description of reference numerals:

[0047] 100, first station; 200, second station; 300, sludge feeding module; 310, mixing bin; 320, screw conveying pump; 400, coating separation module; 410, filter cloth self-adaptive structure; 411, cloth winding mechanism; 4111, roller; 412, tensioning mechanism; 4121, tensioning wheel; 4122, adjusting slot; 413, cleaning and air-drying mechanism; 4131, water tank; 4132, high-pressure cleaning module; 41321, high-pressure pipe; 41322, nozzle; 41323, spraying chamber; 4133, roller; 4134, high-pressure air-drying module ; 4135, squeezing roller; 414, spreading mechanism; 415, detection function mechanism; 416, cloth correcting mechanism; 4161, roller; 4162, motor; 4163, screw; 4164, screw guide rail; 4165, screw slider; 4166, bearing seat; 417, cloth feeding mechanism; 4171, pressing wheel; 420, thin layer cloth structure; 500, curing module; 510, pressure unit; 511, filter press frame; 512, upper hydraulic cylinder; 513, lower hydraulic cylinder; 514, movable base; 515, track; 516, upper pressure plate; 600, frame. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0049] Specifically, Figure 1 As shown, a multi-station sludge filter press system is provided in an embodiment of the present application. The system mainly performs efficient treatment through a first station 100 and a second station 200 to improve the treatment efficiency. The first station 100 includes the following structure:

[0050] The sludge feeding module 300, the coating and separation module 400, the curing module 500 and the frame 600, and in the embodiment of the present application, the coating and separation module 400 and the curing module 500 are provided with two groups, and are respectively arranged at the two ends of the frame 600 to facilitate the processing of the filter cloth, specifically:

[0051] A sludge feeding module 300 is disposed at one end of the frame 600. The sludge feeding module 300 mainly includes a stirring chamber 310 and a screw conveying pump 320. Figure 2As shown, the coating separation module 400 is connected to the sludge feeding module 300, and the coating separation module 400 on the frame 600 includes a filter cloth self-adaptive structure 410 and a thin layer cloth structure 420, wherein the filter cloth self-adaptive structure 410 is provided with two groups, and the two groups of filter cloth self-adaptive structures 410 are symmetrically arranged on the frame 600, and respectively include a cloth winding mechanism 411, a tensioning mechanism 412, a cleaning and air-drying mechanism 413, a cloth spreading mechanism 414, a detection function mechanism 415, a cloth correcting mechanism 416 and a cloth feeding mechanism 417, wherein the cloth winding mechanism 411 is arranged at one end of the frame 600 and is close to the sludge feeding module 300, and the cloth winding mechanism 411 includes a roller 4111, and the roller 4111 is used to wind and release the filter cloth. Specifically, the filter cloth is rolled up by the cloth rolling mechanism 411, so that the filter cloth can be moved in a certain direction, which is convenient for subsequent processing of the filter cloth, and the first step of the processing is the processing of the filter cloth by the tensioning mechanism 412, wherein the tensioning mechanism 412 is provided with a tensioning wheel 4121 and an adjusting slot 4122, the tensioning wheel 4121 is arranged on the adjusting slot 4122, the adjusting slot 4122 is arranged vertically, and the tensioning wheel 4121 controls the tensioning of the filter cloth through the adjusting slot 4122, specifically, the tensioning wheel 4121 moves downward in the adjusting slot 4122 by its own gravity, so as to control the tension of the filter cloth, and in the tensioning mechanism 412, the tensioning wheel 4121 controls the tensioning of the filter cloth during the up and down movement of the adjusting slot 4122, such as Figure 3 As shown, when the tensioning wheel 4121 is at the lowest position of the adjusting slot 4122, the tensioning mechanism 412 controls the tension of the filter cloth to the maximum; when the tensioning wheel 4121 is at the highest position of the adjusting slot 4122, the tensioning mechanism 412 controls the tension of the filter cloth to the minimum. The control of the tension of the filter cloth can select filter cloths with different tensions for different sludges.

[0052] After the tension of the filter cloth is adjusted, the filter cloth is processed by a cleaning and air-drying mechanism 413, which is composed of a water tank 4131, a high-pressure cleaning module 4132, a drum 4133, a high-pressure air-drying module 4134 and a squeezing roller 4135, wherein the high-pressure cleaning module 4132, the drum 4133, the high-pressure air-drying module 4134 and the squeezing roller 4135 are all arranged in the water tank 4131, and the filter cloth passes through the high-pressure cleaning module 4132, the drum 4133, the high-pressure air-drying module 4134 and the squeezing roller 4135 in sequence;

[0053] In the high pressure cleaning module 4132, a high pressure pump, a high pressure pipe 41321 and a nozzle 41322 are provided. Figure 4As shown, specifically, in the embodiment of the present application, a plurality of nozzles 41322 are provided on the high-pressure pipe 41321, and the high-pressure pipe 41321 is provided with two nozzles. The high-pressure pipe 41321 is connected to the high-pressure pump, so that the high-pressure pump can deliver water to the high-pressure pipe 41321 under high pressure. The nozzles 41322 on the two high-pressure pipes 41321 are arranged opposite to each other, and a spraying chamber 41323 is formed by the two high-pressure pipes 41321. The nozzles 41322 are located in the spraying chamber 41323, so as to facilitate spraying and cleaning of the filter cloth. After being sprayed, the filter cloth enters the spreading mechanism 414, and the spreading mechanism 414 includes a roller, and two rollers are provided, and the two rollers are respectively arranged on both sides of the cleaning and drying mechanism 413. The filter cloth is arranged, specifically, at both sides of the water tank 4131, the two rollers are coaxially arranged and coaxially rotated, and the two rollers are axially connected, and the two rollers are provided with threads, and the threads on the two rollers are in opposite directions, so that the filter cloth can be stretched out; after the filter cloth is stretched, the filter cloth enters the detection function mechanism 415, and the detection function mechanism 415 includes a detector, and the detector can detect the path of the filter cloth and detect the running position of the filter cloth in real time. When an abnormality occurs, a correction signal is sent to the cloth correction mechanism 416 to realize self-correction and adjustment. The cloth correction mechanism 416 includes a motor 4162, a screw 4163, a screw guide 4164, a screw slider 4165 and a bearing seat 4166;

[0054] The motor 4162 is fixedly connected to the screw rod 4163, the screw rod slider 4165 has a built-in thread, the screw rod slider 4165 is connected to the screw rod 4163 through the built-in thread, and is movably connected to the screw guide rail 4164. The bearing seat 4166 is provided with a built-in joint bearing, the bearing seat 4166 is fixedly connected to the screw rod slider 4165, the bearing seat 4166 is fixedly installed on the frame 600, the roller 4161 is fixedly connected to the built-in joint bearing in the bearing seat 4166 and the fixed bearing seat 4166, the roller 4161 is electrically connected to the detection function mechanism 415, and the roller 4161 corrects the path of the filter cloth; after the path is corrected, the filter cloth enters the cloth feeding mechanism 417, and the cloth feeding mechanism 417 is provided with two pressing wheels 4171, the two pressing wheels 4171 can squeeze each other and rotate towards each other to assist in the recovery of the filter cloth. At the same time, the cloth feeding mechanism 417 can clamp the sludge, and the specific clamping process is as follows:

[0055] In the embodiment of the present application, specifically in the first workstation 100, two coating separation modules 400 are provided, the coating separation modules 400 are arranged relatively to each other on the frame 600, and each coating separation module 400 stretches out a piece of filter cloth, and there are two filter cloths in total. On the frame 600, the sludge is placed between the two filter cloths through the spiral conveying pump 320, and the sludge is clamped between the two layers of filter cloth by the thin layer cloth module to form a sludge module, thereby completing the coating process of the sludge.

[0056] A thin layer cloth structure 420 is also provided therein, and the thin layer cloth structure 420 cooperates with the frame 600 to cover the upper and lower layers of the flattened filter cloth with sludge. Specifically, the thin layer cloth structure 420 consists of an upper belt conveyor, a lower belt conveyor and a pressure roller, the pressure roller is installed on the upper belt conveyor, the upper belt conveyor is fixed on the frame 600, a slider and a guide rail are provided under the lower belt conveyor, the guide rail is fixed on the frame 600, the slider is fixedly connected to the lower belt conveyor, the lower belt conveyor maintains relative linear movement with the frame 600 through a driving mechanism, and the thickness of the single-layer sludge module is controlled by adjusting the distance between the pressure roller and the belt of the upper belt conveyor.

[0057] After the sludge is coated, the sludge module is sent to the curing module 500. The curing module 500 is provided with a pressure unit 510. The pressure unit 510 includes an upper hydraulic cylinder 512, a lower hydraulic cylinder 513, a movable base 514 and a track 515.

[0058] Specifically, Figure 7 As shown, an upper pressing plate 516 is provided at the output end of the upper hydraulic cylinder 512, and a lower pressing plate is provided at the output end of the lower hydraulic cylinder 513, and a filter press frame 511 is formed between the upper pressing plate 516 and the lower pressing plate;

[0059] The lower hydraulic cylinder 513 is arranged on the movable base 514, and the movable base plate moves linearly on the track 515 through the rollers 4111;

[0060] The pressure unit 510 is disposed at a position connected between the first station 100 and the second station 200 , and the pressure unit 510 is a part of the first station 100 and a part of the second station 200 .

[0061] The upper hydraulic cylinder 512 and the lower hydraulic cylinder 513 in the pressure unit 510 squeeze the sludge module to complete the discharge, specifically:

[0062] When the system is in the material distribution process and the material discharging process, the lower hydraulic cylinder 513 will cooperate with the action according to the program. For example, in the material distribution process, the lower hydraulic cylinder 513 first drives the lower pressure plate to rise to the highest point, and then the lower pressure plate will gradually descend as the sludge module is stacked up and down in the filter press frame 511, that is, for every n layers of folding, the piston rod successively descends by Amm, A=n×the thickness of the sludge module, until the lower pressure plate descends to the lowest point, and then the material distribution process is completed; in the material discharging process, the lower hydraulic cylinder 513 first drives the lower pressure plate to rise to a certain position (this position ensures that the top of the sludge module after squeezing is flush with the top of the filter press frame 511), and then the lower pressure plate will gradually rise with the return of the sludge module, that is, for every m layers of recycling, the piston rod successively rises by Bmm, B=m×the thickness of the sludge module after filtration, until the lower pressure plate rises to the highest point, and then the material discharging process is completed.

[0063] The filter press frame 511 cleaning system is installed above the hydraulic press head pressure module unit, such as a high-pressure air nozzle 41322, a high-pressure water nozzle 41322 or a cleaning brush. After each solid pressing process, the escaped sludge is cleaned by the up and down movement of the pressure module unit to prevent it from clogging the drainage channel and ensure the subsequent filtration effect.

[0064] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A multi-station sludge filter press system, characterized in that: It includes a first station and a second station, the first station and the second station are connected in sequence, and the first station and the second station both include a sludge feeding module, a coating separation module, a curing module and a frame; The sludge feeding module includes a stirring chamber and a screw conveying pump. After being stirred in the mixing chamber, the liquid enters the space between the two layers of filter cloth through a screw conveying pump; The coating separation module is connected to the sludge feeding module, and the coating separation module includes a filter cloth self-adaptive structure and a thin layer cloth structure, and the filter cloth self-adaptive structure is used to tension, flatten, clean, air-dry, and detect and correct the filter cloth; The curing module includes a pressure unit and a filter press frame, and the pressure unit squeezes and dries the sludge through the filter press frame to realize the sludge filter press process; Wherein, the filter cloth self-adaptive structure is provided with two groups, and the two groups of filter cloth self-adaptive structures respectively include: A cloth reeling mechanism is arranged at one end of the frame and close to the sludge feeding module, the cloth reeling mechanism comprises a roller, and the roller reels and releases the filter cloth; A tensioning mechanism is provided with a tensioning wheel and an adjusting slot, wherein the tensioning wheel is installed inside the adjusting slot, the adjusting slot is vertically arranged, and the tensioning wheel moves up and down relative to the adjusting slot; A cleaning and air-drying mechanism, which is composed of a water tank, a high-pressure cleaning module, a drum, a high-pressure air-drying module and a squeezing roller, wherein the high-pressure cleaning module, the drum, the high-pressure air-drying module and the squeezing roller are all arranged in the water tank, and the filter cloth passes through the high-pressure cleaning module, the drum, the high-pressure air-drying module and the squeezing roller in sequence; The spreading mechanism includes two rollers, and the two rollers are respectively arranged at two sides of the washing and drying mechanism, specifically at two sides of the water tank; The detection function mechanism includes a detector, and the detector performs path detection on the filter cloth; The cloth correction mechanism is provided with a roller, the roller is electrically connected to the detection function mechanism, and the roller corrects the path of the filter cloth; The cloth feeding mechanism is provided with two pressing wheels, which press each other and rotate towards each other to control the movement of the filter cloth.

2. A multi-station sludge filter press system according to claim 1, characterized in that: In the cleaning and air-drying mechanism, the high-pressure cleaning module includes a high-pressure pump, a high-pressure pipe and a nozzle. The nozzle is provided in plurality, and the plurality of nozzles are evenly arranged at one side of the high-pressure pipe and connected to the high-pressure pipe. The high-pressure pipe is connected to the high-pressure pump, and the high-pressure pump delivers water to the high-pressure pipe. Two high-pressure pipes are provided, the two high-pressure pipes are arranged opposite to each other and distributed on two sides of the filter cloth, and a spraying cavity is formed between the two high-pressure pipes, and the nozzle is arranged in the spraying cavity.

3. A multi-station sludge filter press system according to claim 1, characterized in that: The cloth correcting mechanism also includes a motor, a screw, a screw guide rail, a screw slider, a bearing seat, a roller and a bearing seat; The motor and the screw rod are fixedly connected, the screw rod slider has built-in threads, the screw rod slider is connected to the screw rod through the built-in threads, and is movably connected to the screw rod guide rail, the bearing seat is provided with a built-in joint bearing, the bearing seat is fixedly connected to the screw rod slider, and the bearing seat is fixedly installed on the frame. The roller is fixedly connected to the bearing seat and the built-in spherical plain bearing in the bearing seat.

4. A multi-station sludge filter press system according to claim 1, characterized in that: In the spreading mechanism, the two rollers are coaxially arranged and rotate coaxially, and the two rollers are axially connected, and both rollers are provided with threads, and the directions of the threads on the two rollers are in opposite directions.

5. The multi-station sludge filter press system according to claim 1, characterized in that: In the curing module, the pressure unit includes an upper hydraulic cylinder, a lower hydraulic cylinder, a movable base and a track; The output end of the upper hydraulic cylinder is provided with an upper pressure plate, and the output end of the lower hydraulic cylinder is provided with A lower pressing plate is provided, and the filter press frame is provided between the upper pressing plate and the lower pressing plate; The lower hydraulic cylinder is arranged on the mobile base, and the mobile base moves linearly on the track through rollers.

6. A multi-station sludge filter press system according to claim 5, characterized in that: The pressure applying unit is disposed at a position connecting the first workstation and the second workstation, and the pressure applying unit is a part of the first workstation and a part of the second workstation respectively.

7. The multi-station sludge filter press system according to claim 1, characterized in that: The thin layer cloth structure consists of an upper belt conveyor, a lower belt conveyor and a pressure roller, wherein the pressure roller is installed on the upper belt conveyor, the upper belt conveyor is fixed on the frame, a slider and a guide rail are provided under the lower belt conveyor, the guide rail is fixed on the frame, the slider is fixedly connected to the lower belt conveyor, the lower belt conveyor maintains relative linear movement with the frame through a driving mechanism, and the thickness of the single-layer sludge module is controlled by adjusting the distance between the pressure roller and the belt of the upper belt conveyor.

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