Continuous deep dewatering device for sludge

Abstract

The application provides a continuous deep dewatering device for deep dewatering of sludge, and relates to the technical field of sludge treatment. The continuous deep dewatering device for deep dewatering of sludge comprises two stages of high-intervention pressure dewatering and deep dewatering. The high-intervention pressure dewatering stage utilizes the synergistic cooperation of the upper filter belt assembly and the lower filter belt assembly to pre-extrude the sludge with high water content to remove part of water, and then the pre-extruded and dewatered sludge is transferred to the deep dewatering stage in batches through the adjusting box. After the pre-extruded and dewatered sludge is subjected to deep dewatering treatment by the deep dewatering assembly on the conveying belt, the deep dewatering is completed. The sludge deep dewatering device can realize continuous and super-strength deep dewatering, and the dewatering effect is ideal.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, and in particular to a continuous deep-pressing sludge deep dehydration device. Background Art

[0002] The higher the moisture content of the sludge produced by sewage treatment, the larger its volume, which places a series of loads on transportation and subsequent processing. Currently, the common sludge treatment method for sewage treatment plants is to transport the dehydrated sludge to a sanitary landfill for disposal.

[0003] Before sludge treatment, it should undergo deep dehydration pretreatment to reduce its moisture content and volume. The water content in sludge is generally interstitial water, capillary water, adherent water, and internal water. Currently, the commonly used physical dehydration methods include plate and frame dehydration, centrifugal dehydration, belt dehydration, and screw press dehydration.

[0004] However, while plate-and-frame dewatering can reduce the moisture content to around 60%, this method requires the addition of large amounts of lime and iron salts, which increases the dry material content while removing water, resulting in insignificant volume and weight reductions. Furthermore, it requires high infrastructure, and the operation is complex and discontinuous. The other three methods can only remove most of the interstitial water, leaving the sludge with a high moisture content (around 80%), a large volume, and difficulty in transportation, as well as numerous subsequent processing issues. While the new high-drying belt dewatering method can reduce the moisture content to around 65%, the addition of large amounts of dry materials such as lime, fly ash, or sawdust also results in insignificant volume and weight reductions. Therefore, a continuous, ultra-high-pressure, and easy-to-operate deep sludge dewatering method is urgently needed to address these issues. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides a continuous deep-pressing sludge deep dehydration device, which solves the problem of poor dehydration effect of the existing sludge dehydration device.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A continuous deep-pressing sludge deep dehydration device, the device comprising a dehydration frame;

[0010] The dewatering frame includes a high-pressure section frame for installing the upper filter belt assembly and the lower filter belt assembly, and a pressing section frame for installing the deep pressing assembly, and an adjustment box is provided at the connection between the high-pressure section frame and the pressing section frame;

[0011] The upper filter belt assembly includes: an upper drive roller, an upper support roller series assembly, an upper tensioning roller, a synergistic assembly, an upper filter belt and a receiving hopper, which are installed one by one on the upper layer of the high-pressure intermediary section frame along the moving direction; the upper filter belt is slidably sleeved on the outer sides of the upper drive roller, the upper support roller series assembly, the upper tensioning roller and the roller wheels of the synergistic assembly in sequence to form a closed loop; the receiving hopper is installed on the high-pressure intermediary section frame and is located above the upper filter belt;

[0012] The lower filter belt assembly comprises: a lower driving roller, a lower supporting roller series assembly, a lower tensioning roller, a cooperative assembly, and a lower filter belt, which are installed one by one on the lower layer of the high-pressure intermediary section frame along the moving direction; the lower filter belt is slidably sleeved on the outer sides of the lower driving roller, the lower supporting roller series assembly, the lower tensioning roller, the pre-squeezing roller, the pre-pressing roller, the adjusting roller, and the rollers in the squeezing roller group in sequence to form a closed loop;

[0013] The synergistic assembly includes a pre-squeezing roller, a pre-pressing roller, an adjusting roller, and an extrusion roller group arranged one by one along the moving direction;

[0014] The upper driving roller and the lower driving roller are linked by gears;

[0015] The deep pressing assembly includes: a driving roller, a pressing section support roller assembly, a spiral material distribution device, a thickness control roller, a conveyor belt, and a pressing assembly, which are installed one by one on the pressing section frame along the moving direction; the conveyor belt is slidably sleeved on the outer sides of the rollers of the driving roller and the pressing section support roller assembly in sequence to form a closed loop; the pressing assembly is located above the conveyor belt between the thickness control roller and the driving roller;

[0016] The extrusion assembly includes a telescopic device and an extrusion plate fixed at the telescopic end of the telescopic device.

[0017] Preferably, water-permeable countersunk holes and transverse drainage grooves are arranged on the arc surface of the outer side of the pre-pressing roller, and drainage holes are provided on the blind plates at both ends of the pre-pressing roller.

[0018] Preferably, the regulating box is arranged at the connection between the high-pressure section frame and the pressing section frame, and is located below the scraper mud discharge point of the upper drive roller and the lower drive roller; at the same time, the discharge port of the regulating box is located directly above the conveyor belt; a material limiter is provided on the upper part of the inner wall of the regulating box.

[0019] Preferably, the upper driving roller and the spiral feeding device are both coupled to a first stepper motor.

[0020] Preferably, the spiral material distribution device is coupled to a second stepping motor, and the second stepping motor is connected to a controller; and the spiral material distribution device is started and stopped in an interlocked manner with the driving roller.

[0021] Preferably, a limit switch is provided on the pressing section frame above the telescopic device; and a pressure sensing device is provided on the lower surface of the extrusion plate.

[0022] Preferably, an upper cleaning pipe for cleaning the upper filter belt and a lower cleaning pipe for cleaning the lower filter belt are further installed on the high-pressure intermediate pressure section frame.

[0023] Preferably, the high-pressure intermediate section frame is further provided with an upper filter belt tensioning hydraulic component and a lower filter belt tensioning hydraulic component.

[0024] Preferably, the upper filter belt and the lower filter belt are both high-strength polyester filter belts.

[0025] Preferably, the conveyor belt is an ultra-high strength nylon belt.

[0026] (3) Beneficial effects

[0027] The present invention provides a continuous deep-pressing sludge deep dehydration device. Compared with the existing technology, it has the following beneficial effects:

[0028] 1. The present invention provides a continuous deep-pressing sludge deep dehydration device, which first uses the upper filter belt assembly and the lower filter belt assembly of the high-pressure pre-pressing section to cooperate with each other to pre-extrude the sludge with a high moisture content to remove part of the moisture, and then stores the sludge after pre-extrusion and dehydration in the regulating box set between the high-pressure pre-pressing section and the pressing section. After a short transition, it is transferred to the pressing section, and finally the deep pressing assembly of the pressing section further performs super-high pressure dehydration on the sludge after pre-extrusion and dehydration. After one dehydration is completed, the regulating box will empty the material again and proceed to the next cycle, and the sludge can be deeply dehydrated continuously. The continuous deep-pressing sludge deep dehydration device of the present invention can dehydrate continuously, has super-high dehydration pressure, and is easy to operate. Compared with existing dehydration devices, it has a more ideal dehydration effect, a low sludge moisture content, a small volume, meets relevant standards, and is convenient for subsequent treatment.

[0029] 2. The pre-squeezing roller in the synergistic component of the present invention has water-permeable countersunk holes and transverse drainage grooves arranged on the arc surface of the roller outer side. At the same time, drainage holes are provided at the blind plates at both ends of the pre-squeezing roller to facilitate the discharge of water removed from the sludge in the high-pressure section, thereby improving the sludge dehydration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0031] Figure 1 This is a structural diagram of a continuous deep pressing sludge deep dehydration device of the present invention

[0032] Figure 2 A side view of a pre-pressing roller in an embodiment of the present invention;

[0033] Figure 3 This is a structural diagram of the outer arc surface of the pre-pressing roller in an embodiment of the present invention;

[0034] In the figure: 1-dewatering frame; 101-high-pressure section frame; 102-pressing section frame; 2-squeezing roller assembly; 3-upper cleaning pipe; 4-receiving hopper; 5-upper support roller assembly; 6-adjusting roller; 7-pre-pressing roller; 8-upper filter belt tensioning hydraulic components; 9-lower filter belt tensioning hydraulic components; 10-upper tensioning roller; 11-lower tensioning roller; 12-lower filter belt; 13-lower support roller assembly; 14-lower cleaning pipe; 15-Pre-pressing roller; 151-Water-permeable countersunk hole; 152-Horizontal drainage groove; 153-Drainage hole; 16-Lower drive roller; 17-Upper filter belt; 18-Upper drive roller; 19-Regulating box; 20-Spiral feeding device; 21-Thickness control roller; 22-Squeezing assembly; 221-Telescopic device; 222-Squeezing plate; 23-Drive roller; 24-Pressing section support roller series assembly; 25-Conveyor belt; 26-Material limiter. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] The embodiment of the present application solves the problem of poor dehydration effect of existing sludge dehydration devices by providing a continuous deep-pressing sludge deep dehydration device, and achieves the purpose of continuous and deep dehydration of sludge through simple and convenient operation.

[0037] The technical solution in the embodiments of the present application is to solve the above technical problems, and the overall idea is as follows:

[0038] In order to solve the problem that existing dewatering devices cannot perform continuous and deep dehydration, the technical solution of the present application proposes a continuous deep-pressing sludge deep dehydration device, which includes two stages: high-pressure dehydration and deep-pressing dehydration. The high-pressure dehydration stage utilizes the coordinated cooperation of the upper filter belt assembly and the lower filter belt assembly to pre-extrude the sludge with high water content to remove part of the water, and then the pre-extruded dehydrated sludge is transferred to the deep-pressing dehydration stage in batches through the regulating box. The sludge after pre-extruded dehydration is deeply dehydrated after the deep-pressing assembly on the conveyor belt. The sludge deep dehydration device of the present application can achieve continuous and ultra-high-intensity deep dehydration, and the dehydration effect is ideal.

[0039] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0040] Example 1:

[0041] The present invention first proposes a continuous deep pressing sludge deep dehydration device, see Figure 1 , the device comprises: a dehydration rack 1;

[0042] The dewatering frame 1 includes a high-pressure section frame 101 for installing the upper filter belt assembly and the lower filter belt assembly, and a pressing section frame 102 for installing the deep pressing assembly. An adjustment box 19 is provided at the connection between the high-pressure section frame 101 and the pressing section frame 102;

[0043] The upper filter belt assembly includes: an upper drive roller 18, an upper support roller series assembly 5, an upper tensioning roller 10, a synergistic component, an upper filter belt 17 and a receiving hopper 4, which are installed one by one on the upper layer of the high-pressure intermediary pressure section frame 101 along the moving direction; the upper filter belt 17 is slidably sleeved on the outer sides of the upper drive roller 18, the upper support roller series assembly 5, the upper tensioning roller 10 and the roller wheels of the synergistic component in sequence to form a closed loop; the receiving hopper 4 is installed on the high-pressure intermediary pressure section frame 101 and is located above the upper filter belt 17;

[0044] The lower filter belt assembly includes: a lower driving roller 16, a lower supporting roller series assembly 13, a lower tensioning roller 11, a synergistic assembly, and a lower filter belt 12, which are installed one by one on the lower layer of the high-pressure section frame 101 along the moving direction; the lower filter belt 12 is slidably sleeved on the outer sides of the lower driving roller 16, the lower supporting roller series assembly 13, the lower tensioning roller 11, and the rollers of the synergistic assembly in sequence to form a closed loop;

[0045] The cooperative component includes a pre-squeezing roller 15, a pre-pressing roller 7, an adjusting roller 6, and an extrusion roller group 2 arranged one by one along the moving direction;

[0046] The upper driving roller 18 and the lower driving roller 16 are linked by gears;

[0047] The deep pressing assembly includes: a driving roller 23, a pressing section support roller assembly 24, a spiral material distribution device 20, a thickness control roller 21, a conveyor belt 25, and a pressing assembly 22, which are installed one by one on the pressing section frame 102 along the moving direction; the conveyor belt 25 is slidably connected to the outer sides of the rollers of the driving roller 23 and the pressing section support roller assembly 24 in sequence to form a closed loop; the pressing assembly 22 is located above the conveyor belt 25 between the thickness control roller 21 and the driving roller 23;

[0048] The extrusion assembly 22 includes a telescopic device 221 and an extrusion plate 222 fixed to the telescopic end of the telescopic device 221 .

[0049] It can be seen that the present embodiment provides a continuous deep-pressing sludge deep dehydration device, which first utilizes the upper filter belt assembly and the lower filter belt assembly of the high-pressure pre-pressing section to cooperate with each other to pre-extrude the sludge with a high moisture content to remove some of the water, and then stores the sludge after pre-extrusion and dehydration in the regulating box set between the high-pressure pre-pressing section and the pressing section. After a short transition, it is transferred to the pressing section, and finally the deep pressing assembly of the pressing section further dehydrates the sludge after pre-extrusion and dehydration. After one dehydration is completed, the regulating box will empty the material again and proceed to the next cycle, and the sludge can be deeply dehydrated continuously. The continuous deep-pressing sludge deep dehydration device of this embodiment can dehydrate continuously, has super-strong dehydration pressure, and is easy to operate. Compared with existing dehydration devices, the dehydration effect is more ideal, the sludge has a low moisture content, a small volume, meets relevant standards, and is convenient for subsequent processing.

[0050] The following is combined with Figure 1-3 , as well as a detailed explanation of the specific components and the connection relationships between components, to illustrate in detail the implementation process of an embodiment of the present invention.

[0051] In this embodiment, a continuous deep pressing sludge deep dehydration device is divided into two stages during operation: a high-pressure pressing section for sludge and a pressing section for sludge. The high-pressure pressing section cooperates with the upper filter belt assembly and the lower filter belt assembly to complete the pre-pressing dehydration of the sludge, and the pressing section completes the deep dehydration of the sludge through the deep pressing assembly.

[0052] For details, see Figure 1 The sludge deep dewatering device includes a dewatering frame 1; the dewatering frame 1 includes a high-pressure section frame 101 for installing an upper filter belt assembly and a lower filter belt assembly, and a pressing section frame 102 for installing a deep pressing assembly.

[0053] A regulating box 19 is provided at the connection between the high-pressure pre-pressing section frame 101 and the pressing section frame 102. The regulating box 19 is used to temporarily hold the dewatered sludge after treatment in the high-pressure pre-pressing section. To facilitate seamless connection between the high-pressure pre-pressing section and the pressing section, the regulating box 19 is provided at the connection between the high-pressure pre-pressing section frame 101 and the pressing section frame 102, and is located below the scraper discharge point of the upper drive roller 18 and the lower drive roller 16. At the same time, the discharge port of the regulating box 19 is located directly above the conveyor belt 25 in the pressing section. In addition, to prevent the dewatered sludge from overflowing, a material limiter 26 is provided on the upper inner side wall of the regulating box 19 to prevent excessive sludge from accumulating therein.

[0054] The upper filter belt assembly includes: an upper drive roller 18, an upper support roller assembly 5, an upper tensioning roller 10, and a synergistic assembly, all mounted sequentially along the sludge's travel direction on the upper layer of the high-pressure section frame 101. The upper filter belt 17 and the receiving hopper 4 slide over the outer rollers of the upper drive roller 18, upper support roller assembly 5, upper tensioning roller 10, and synergistic assembly, forming a closed loop. The receiving hopper 4 receives the incoming high-moisture sludge. It is mounted on the high-pressure section frame 101 and positioned above the upper filter belt 17, ensuring that the sludge falls directly onto the upper filter belt 17 upon dropping from the lower end of the receiving hopper 4.

[0055] The lower filter belt assembly includes: a lower drive roller 16, a lower support roller assembly 13, a lower tension roller 11, a synergistic assembly, and a lower filter belt 12, all mounted one by one on the lower layer of the high-pressure section frame 101 along the direction of sludge movement. The lower filter belt 12 is slidably sleeved on the outer sides of the lower drive roller 16, the lower support roller assembly 13, the lower tension roller 11, and the various rollers in the synergistic assembly, also forming a closed loop.

[0056] The synergistic assembly is a common component of the upper and lower filter belt assemblies and includes a pre-squeeze roller 15, a pre-pressing roller 7, an adjustment roller 6, and a squeeze roller assembly 2, arranged one after another along the sludge movement direction. The synergistic assembly is installed in the middle layer of the high-pressure section frame 101 to facilitate the synergistic effect of the upper and lower filter belt assemblies.

[0057] In order to facilitate the drainage of the water squeezed out of the sludge between the filter belts, water-permeable countersunk holes 151 and transverse drainage grooves 152 are arranged on the curved surface of the roller outside the pre-pressing roller 15, and drainage holes 153 are set on the blind plates at both ends of the pre-pressing roller 15 (the flange covers that block the ends of the roller). Figure 2 and Figure 3 shown.

[0058] In addition, the upper drive roller 18 is coupled to the first stepper motor to provide power for the operation of the upper filter belt assembly. The upper drive roller 18 and the lower drive roller 16 are linked by gears, so that when the first stepper motor drives the upper drive roller 18 to rotate, the upper drive roller 18 can drive the lower drive roller 16 to rotate in the opposite direction.

[0059] In addition, in order to ensure the cleaning of the device, an upper cleaning pipe 3 for cleaning the upper filter belt 17 and a lower cleaning pipe 14 for cleaning the lower filter belt 12 are also installed on the high-pressure intermediate pressure section frame 101.

[0060] Secondly, in order to increase the extrusion pressure between the upper filter belt 17 and the lower filter belt 12 according to actual needs, an upper filter belt tensioning hydraulic component 8 and a lower filter belt tensioning hydraulic component 9 are respectively provided on the high-pressure section frame 101, which are used to tension the upper filter belt 17 and the lower filter belt 12 respectively.

[0061] At the same time, in order to ensure the strength of each filter belt, the upper filter belt 17 and the lower filter belt 12 are both made of high-strength polyester filter belts.

[0062] After the sludge is dehydrated through the high-pressure intermediary dehydration section, it is transferred through the regulating box 19 to the sludge pressing section for deep dehydration.

[0063] The deep pressing assembly of the pressing section includes: a drive roller 23, a pressing section support roller assembly 24, a spiral distribution device 20, a thickness control roller 21, a conveyor belt 25, and a squeeze assembly 22, all mounted one by one on the pressing section frame 102 along the direction of sludge movement. The conveyor belt 25 slides over the outer rollers of the drive roller 23 and the pressing section support roller assembly 24, forming a closed loop. A support plate with drainage patterns and drainage holes is located beneath the conveyor belt 25. The spiral distribution device 20 and thickness control roller 21 work together to evenly distribute the sludge, ensuring a uniform thickness on the conveyor belt 25. The spiral distribution device 20 is coupled to a second stepper motor, which drives the spiral distribution device 20 to distribute the sludge falling into the regulating box 19. To ensure that the second stepper motor starts and stops as needed, thereby controlling the operation of the spiral feeding device 20, the drive roller 23, and the conveyor belt 25 at preset time intervals, the second stepper motor is connected to a controller to control its start and stop. Furthermore, the spiral feeding device 20 and the drive roller 23 are started and stopped in a linked manner, ensuring that they start or stop simultaneously.

[0064] The squeezing assembly 22 is located above the conveyor belt 25 between the thickness control roller 21 and the drive 23. It is used to squeeze the sludge again with exceptional force as it passes through this location, further removing moisture. The squeezing assembly 22 comprises a telescopic mechanism 221 and a squeezing plate 222 fixed to the telescopic end of the mechanism 221. The squeezing plate 222 is typically made of high-strength rubber.

[0065] In addition, a limit switch is provided on the pressing section frame 102 above the telescopic device 221 to limit the telescopic rod of the telescopic device 221 .

[0066] In addition, a pressure sensing device is provided on the lower surface of the squeezing plate 222 to monitor the squeezing pressure of the squeezing plate 222 on the sludge, so as to facilitate real-time adjustment according to actual conditions in the later stage.

[0067] In order to ensure the strength of the conveyor belt 25 , an ultra-high strength nylon belt is selected as the conveyor belt 25 .

[0068] The working principle of the continuous deep squeezing sludge deep dehydration device provided by the present invention is:

[0069] When the device is working, the high-water content sludge is transported into the receiving hopper 4 and evenly distributed, and the sludge falls on the upper filter belt 17. The stepper motor connected to the upper drive roller 18 works, driving the upper drive roller 18 to rotate. The upper drive roller 18 drives the lower drive roller 16 to rotate in the opposite direction through the gear. The upper filter belt 17 and the lower filter belt 12 are supported by their respective support rollers. After half a circle of reverse separation, they move in the same direction and overlap. The sludge is sandwiched between the upper and lower filter belts, and then pre-pressed and continuously squeezed and dehydrated. After half a circle of same-direction squeezing, the two filter belts separate and rotate in opposite directions, and operate continuously in sequence. The pre-pressed and dehydrated sludge falls into the adjustment box 19. The regulating box 19 temporarily stores the sludge. Every once in a while, the controller controls the start and stop of the stepper motor of the super-strong pressing section. During the movement, the sludge in the regulating box 19 falls onto the conveyor belt 25. The spiral feeding device 20 and the thickness control roller 21 at the rear end evenly and flatten the feeding. The length of each feeding is the extrusion service range of the rear end extrusion plate 222. After feeding, the conveyor belt 25 stops rotating, and the telescopic device 221 extends to drive the extrusion plate 222 to squeeze on the conveyor belt 25, with the sludge wrapped in the middle. Under the conveyor belt 25 is a support plate with water filter patterns and water filter holes. After the squeezing is completed, the conveyor belt 25 moves forward to output the moisture content sludge, and the regulating box 19 drops the material again, and the cycle is in sequence to make the sludge deeply dehydrated.

[0070] In summary, compared with the existing technology, the present invention has the following beneficial effects:

[0071] 1. The continuous deep pressing sludge deep dewatering device provided by the application first uses the upper filter belt assembly and the lower filter belt assembly of the high intervention compression section to cooperate with each other to pre-press the sludge with high water content to remove part of the water, then stores the sludge after pre-pressing and removing water in the adjusting box arranged between the high intervention compression section and the pressing section for a short transition, and then transfers to the pressing section, and finally further super-strong pressure dewatering is performed on the sludge after pre-pressing and dewatering by the deep pressing assembly of the pressing section. After the first dewatering is completed, the adjusting box will fall again and the next cycle will be performed, and the sludge can be continuously and deeply dewatered. The continuous deep pressing sludge deep dewatering device provided by the application can continuously dewater, has super-strong dewatering pressure, and is convenient to operate, and compared with the existing dewatering device, the dewatering effect is more ideal, the sludge has low water content and small volume, meets the relevant standards, and is convenient for subsequent treatment.

[0072] 2. In the application, the pre-extrusion roller in the cooperative assembly is arranged with water-permeable counterbores and transverse drainage line grooves on the arc surface outside the roller, and the two ends of the pre-extrusion roller are provided with drainage holes in the blind plates, so as to facilitate the discharge of water removed from the sludge in the high intervention compression section, and make the sludge dewatering effect better.

[0073] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0074] The above examples are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A continuous deep pressing sludge deep dehydration device, characterized in that: The device comprises a dehydration rack (1); The dewatering frame (1) comprises a high-pressure section frame (101) for installing an upper filter belt assembly and a lower filter belt assembly, and a pressing section frame (102) for installing a deep pressing assembly, and an adjustment box (19) is provided at the connection between the high-pressure section frame (101) and the pressing section frame (102); The upper filter belt assembly comprises: an upper driving roller (18), an upper supporting roller series assembly (5), an upper tensioning roller (10), a synergistic assembly, an upper filter belt (17) and a receiving hopper (4) which are installed one by one along the moving direction on the upper layer of the high-pressure section frame (101); the synergistic assembly comprises a pre-extrusion roller (15), a pre-pressing roller (7), an adjusting roller (6), and an extrusion roller group (2) which are arranged one by one along the moving direction; the arc surface of the outer side of the pre-extrusion roller (15) is arranged Permeable sink holes (151) and transverse drainage grooves (152) are arranged in series, and drainage holes (153) are arranged on the blind plates at both ends of the pre-extrusion roller (15); the upper filter belt (17) is slidably sleeved on the outer side of the roller of the upper drive roller (18), the upper support roller series assembly (5), the upper tensioning roller (10) and the synergistic assembly in sequence to form a closed loop; the receiving hopper (4) is installed on the high-pressure intermediary pressure section frame (101) and is located above the upper filter belt (17); The lower filter belt assembly comprises: a lower driving roller (16), a lower supporting roller series assembly (13), a lower tensioning roller (11), a synergistic assembly, and a lower filter belt (12) which are installed one by one on the lower layer of the high-pressure section frame (101) along the moving direction; the lower filter belt (12) is slidably sleeved on the outer sides of the rollers in the lower driving roller (16), the lower supporting roller series assembly (13), the lower tensioning roller (11), the pre-squeezing roller (15), the pre-pressing roller (7), the regulating roller (6), and the squeezing roller group (2) in sequence to form a closed loop; The upper driving roller (18) and the lower driving roller (16) are linked via gears; The deep pressing assembly comprises: a driving roller (23), a pressing section support roller series assembly (24), a spiral material distribution device (20), a thickness control roller (21), a conveyor belt (25) and a pressing assembly (22) which are installed one by one on the pressing section frame (102) along the moving direction; the conveyor belt (25) is slidably sleeved on the outer sides of the rollers in the driving roller (23) and the pressing section support roller series assembly (24) in sequence to form a closed loop, and a support plate with water filter patterns and water filter holes is provided below the conveyor belt (25); the pressing assembly (22) is located above the conveyor belt (25) between the thickness control roller (21) and the driving roller (23); The extrusion assembly (22) includes a telescopic device (221) and an extrusion plate (222) fixed to the telescopic end of the telescopic device (221); The regulating box (19) is arranged at the connection between the high-pressure section frame (101) and the pressing section frame (102), and is located below the scraper discharge point of the upper driving roller (18) and the lower driving roller (16); at the same time, the discharge port of the regulating box (19) is located directly above the conveyor belt (25); a material limiter (26) is provided on the upper part of the inner side wall of the regulating box (19); The spiral material distributing device (20) and the driving roller (23) are started and stopped in an interlocked manner.

2. A continuous deep pressing sludge deep dehydration device according to claim 1, characterized in that: The upper driving roller (18) is coupled to a first stepper motor.

3. A continuous deep pressing sludge deep dehydration device according to claim 1, characterized in that: The spiral material distributing device (20) is coupled to a second stepping motor, and the second stepping motor is connected to a controller.

4. A continuous deep pressing sludge deep dehydration device according to claim 1, characterized in that: A limit switch is provided on the pressing section frame (102) above the telescopic device (221); and a pressure sensing device is provided on the lower surface of the squeezing plate (222).

5. The continuous deep pressing sludge deep dehydration device according to claim 1, characterized in that: An upper cleaning pipe (3) for cleaning the upper filter belt (17) and a lower cleaning pipe (14) for cleaning the lower filter belt (12) are also installed on the high-pressure intermediate pressure section frame (101).

6. The continuous deep pressing sludge deep dehydration device according to claim 1, characterized in that: An upper filter belt tensioning hydraulic component (8) and a lower filter belt tensioning hydraulic component (9) are also provided on the high-pressure intermediate pressure section frame (101).

7. The continuous deep pressing sludge deep dehydration device according to claim 1, characterized in that: The upper filter belt (17) and the lower filter belt (12) are both high-strength polyester filter belts.

8. The continuous deep pressing sludge deep dehydration device according to claim 1, characterized in that: The conveyor belt (25) is an ultra-high strength nylon belt.

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