CN115057599A

CN115057599A - Continuous deep-pressing sludge deep dehydration device

Info

Publication number: CN115057599A
Application number: CN202210668317.7A
Authority: CN
Inventors: 陶光朝; 谢长血; 戴云帆
Original assignee: Beijing Cm Environmental Engineering Corp ltd
Current assignee: Beijing Cm Environmental Engineering Corp ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-09-16

Abstract

The invention provides a continuous deep-pressing sludge deep dehydration device, and relates to the technical field of sludge treatment. The invention provides a continuous deep-pressing sludge deep dehydration device which comprises two stages of high-intervention pressure dehydration and deep-pressing dehydration. In the high-interference pressure dehydration stage, the sludge with high water content is pre-extruded to remove partial water by utilizing the cooperative fit of the upper filter belt component and the lower filter belt component, and then the sludge subjected to pre-extrusion dehydration is gradually transferred to the deep-pressing dehydration stage through the adjusting box in batches. And (4) carrying out deep water pressing treatment on the sludge subjected to the pre-extrusion dehydration on a conveyor belt through a deep pressing assembly to complete deep dehydration. The deep dehydration device for the sludge can realize continuous deep dehydration with super strength and has ideal dehydration effect.

Description

Continuous deep-pressing sludge deep dehydration device

Technical Field

The invention relates to the technical field of sludge treatment, in particular to a continuous deep-pressing sludge deep dehydration device.

Background

The higher the water content of the sludge generated by sewage treatment is, the larger the volume of the sludge is, and a series of loads are brought to transportation and subsequent treatment. At present, the sludge after dehydration treatment is transported outside or sent to a garbage sanitary landfill site for landfill, which is a common sludge treatment mode of a sewage treatment plant. However, the water content of the activated sludge is still about 80% after the activated sludge is dehydrated, so that the direct landfill can not only not meet the relevant national regulations (the water content of the sludge entering the landfill is below 60% according to the national regulations) but also cause the operation difficulty of the landfill and the refuse of the landfill. Large amounts of this sludge, if not properly disposed of, can become a serious "secondary source of pollution".

Before the sludge is treated, deep dehydration pretreatment is carried out to reduce the water content and reduce the volume of the sludge, and the water contained in the sludge is generally interstitial water, capillary water, attached water and internal water. The currently common physical dehydration modes mainly comprise: plate frame dehydration, centrifugal dehydration, belt machine dehydration, screw press dehydration and the like.

However, although the water content of the plate-and-frame machine dehydration can be reduced to about 60%, the method needs to add a large amount of lime and iron salt, the content of dry materials is increased while removing water, the volume reduction and the weight reduction are not obvious, the capital construction requirement is high, and the operation is complex and discontinuous; in addition, most of interstitial water can be removed by the three modes, the water content of the sludge is still high (about 80 percent approximately), the volume is large, the transportation is difficult, and the problem of subsequent treatment is serious. Although the water content of the existing novel high-speed belt dryer can be reduced to about 65%, the addition of a large amount of dry materials such as lime, fly ash or sawdust causes the volume and weight reduction of sludge to be not obvious. Therefore, a sludge deep dehydration method with continuous, super-strong pressure and convenient operation is needed to solve the above problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a continuous deep-pressing sludge deep dehydration device, which solves the problem of poor dehydration effect of the existing sludge dehydration device.

(II) technical scheme

In order to realize the purpose, the invention is realized by the following technical scheme:

a continuous deep-pressing sludge deep dehydration device comprises a dehydration rack;

the dehydration rack comprises a high-interference pressing section rack and a pressing section rack, wherein the high-interference pressing section rack is used for installing an upper-layer filter belt component and a lower-layer filter belt component, the pressing section rack is used for installing a deep pressing component, and an adjusting box is arranged at the joint of the high-interference pressing section rack and the pressing section rack;

the upper belt assembly comprises: the upper driving roller, the upper supporting roller series assembly, the upper tensioning roller, the synergistic assembly, the upper filter belt and the material receiving hopper are arranged on the upper layer of the high-interference pressing section rack one by one along the moving direction; the upper filter belt is sequentially sleeved outside the upper driving roller, the upper supporting roller series assembly, the upper tensioning roller and the roller of the synergistic assembly in a sliding manner to form a closed loop; the receiving hopper is arranged on the high-interference pressure section rack and is positioned above the upper filter belt;

the lower belt assembly comprises: the lower driving roller, the lower support roller series assembly, the lower tensioning roller, the synergistic assembly and the lower filter belt are arranged on the lower layer of the high-interference pressing section rack one by one along the moving direction; the lower layer filter belt is sequentially sleeved outside the lower layer driving roller, the lower layer supporting roller series assembly, the lower layer tensioning roller, the pre-extrusion roller, the pre-compression roller, the adjusting roller and the roller wheel in the extrusion roller set in a sliding manner to form a closed loop;

the synergistic component comprises a pre-extrusion roller, a pre-compression roller, an adjusting roller and an extrusion roller set which are arranged one by one along the moving direction;

the upper driving roller and the lower driving roller are linked through a gear;

the deep press assembly includes: the driving roller, the pressing section supporting roller series assembly, the spiral distributing device, the thickness control roller, the conveying belt and the extruding assembly are arranged on the pressing section rack one by one along the moving direction; the conveying belt is sequentially sleeved outside the rollers of the driving roller and the pressing section supporting roller series assembly in a sliding manner to form a closed loop; the squeezing assembly is positioned above the conveying belt between the thickness control roller and the driving roller;

the extrusion assembly comprises a telescopic device and an extrusion plate fixed at the telescopic end of the telescopic device.

Preferably, the cambered surface on the outer side of the roller of the pre-pressing roller is provided with water-permeable counter bores and a transverse drainage corrugated wire groove in an arrayed manner, and the blind plates at the two ends of the pre-pressing roller are provided with drainage holes.

Preferably, the adjusting box is arranged at the joint of the high-interference pressing section rack and the pressing section rack and is positioned below the sludge discharge positions of the scrapers of the upper driving roller and the lower driving roller; meanwhile, a discharge port of the adjusting box is positioned right above the conveying belt; and a material limiter is arranged on the upper part of the inner side wall of the adjusting box.

Preferably, the upper layer driving roller and the spiral material distribution device are both coupled with a first stepping motor.

Preferably, the spiral distributing device is coupled with a second stepping motor, and the second stepping motor is connected with a controller; and the spiral distributing device and the driving roller are started and stopped in a linkage manner.

Preferably, a limit switch is arranged on the squeezing section rack above the telescopic device; and a pressure sensing device is arranged on the lower surface of the extrusion plate.

Preferably, the high-interference pressure section rack is further provided with an upper layer cleaning pipe for cleaning the upper layer filter belt and a lower layer cleaning pipe for cleaning the lower layer filter belt.

Preferably, the high intervention pressure section rack is further provided with an upper layer filter belt tensioning hydraulic part and a lower layer filter belt tensioning hydraulic part respectively.

Preferably, the upper filter belt and the lower filter belt are high-strength polyester filter belts.

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

(III) advantageous effects

The invention provides a continuous deep-pressing sludge deep-dewatering device. Compared with the prior art, the method has the following beneficial effects:

1. the invention provides a continuous deep-pressing sludge deep dehydration device which comprises the steps of firstly utilizing the upper layer filter belt component and the lower layer filter belt component of a high-dry prepressing section to carry out prepressing on sludge with high water content to remove partial water, then storing the sludge subjected to the prepressing and water removal in a regulating tank arranged between the high-interference pressing section and the pressing section for transient transition, then transferring to the pressing section, and finally carrying out further super-strong pressure dehydration on the sludge subjected to the prepressing and dehydration by the deep pressing component of the pressing section. And after primary dehydration is finished, the adjusting box can drop materials again, next circulation is carried out, and the sludge is continuously and deeply dehydrated. The continuous deep-pressing sludge deep dehydration device can perform continuous dehydration, has super-strong dehydration pressure and convenient operation, has more ideal dehydration effect, low sludge moisture content and small volume compared with the existing dehydration device, meets the relevant standards and is convenient for subsequent treatment.

2. In the pre-extrusion roller in the synergistic component, the cambered surface at the outer side of the roller is provided with the water-permeable counter bores and the transverse drainage corrugated wire grooves in an array manner, and the blind plates at the two ends of the pre-extrusion roller are provided with the drainage holes, so that the sludge at the high-interference pressure section can be drained conveniently, and the sludge dewatering effect is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a structural diagram of a continuous deep-pressing sludge deep-dewatering device of the invention

FIG. 2 is a side view of a pre-press roll according to an embodiment of the invention;

FIG. 3 is a structural diagram of an outer arc surface of a pre-press roller in the embodiment of the invention;

in the figure: 1-a dehydration machine frame; 101-high intervention pressure section rack; 102-a press section frame; 2-an extrusion roller set; 3-upper layer cleaning pipe; 4-a receiving hopper; 5-upper layer supporting roller series components; 6-adjusting rollers; 7-pre-pressing roller; 8-tensioning hydraulic parts of the upper filter belt; 9-tensioning hydraulic parts of the lower layer filter belt; 10-upper tension roller; 11-lower tension roll; 12-lower filter belt; 13-lower layer support roller series components; 14-lower layer cleaning tube; 15-pre-pressing roller; 151-water-permeable counter bores; 152-transverse drainage striation grooves; 153-drainage holes; 16-lower drive roller; 17-upper filter belt; 18-upper drive roller; 19-a regulating box; 20-a spiral distributing device; 21-thickness control roller; 22-a pressing assembly; 221-a telescoping device; 222-a compression plate; 23-a drive roller; 24-press section support roll train assembly; 25-a conveyor belt; 26-material stopper.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete description of the technical solutions in the embodiments of the present invention, it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the application provides a mud deep dehydration device is squeezed to continuous type degree of depth, has solved current mud dewatering device and has had the poor problem of dewatering effect, has realized reaching the purpose that mud is continuous, degree of depth dehydration through simple, convenient operation.

In order to solve the technical problems, the general idea of the embodiment of the present application is as follows:

in order to solve the problem that the existing dehydration device cannot continuously and deeply dehydrate, the technical scheme of the application provides a continuous deep-pressing sludge deep dehydration device which comprises two stages of high-intervention pressure dehydration and deep-pressing dehydration. In the high-pressure intervention dehydration stage, the cooperation of the upper filter belt assembly and the lower filter belt assembly is utilized to pre-extrude the sludge with high water content to remove partial water, and then the sludge subjected to pre-extrusion dehydration is gradually transited to the deep-pressure extrusion dehydration stage in batches through the adjusting box. And (4) carrying out deep water pressing treatment on the sludge subjected to the pre-extrusion dehydration on a conveyor belt through a deep pressing assembly to complete deep dehydration. The deep dehydration device for the sludge can realize continuous deep dehydration with super strength and has ideal dehydration effect.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Example 1:

the invention firstly provides a continuous deep-pressing sludge deep dehydration device, which comprises the following components in percentage by weight with reference to figure 1: a dehydration frame 1;

the dehydration rack 1 comprises a high-interference pressing section rack 101 for installing an upper-layer filter belt component and a lower-layer filter belt component and a pressing section rack 102 for installing a deep pressing component, and a regulating box 19 is arranged at the joint of the high-interference pressing section rack 101 and the pressing section rack 102;

the upper 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 arranged on the upper layer of the high-pressure-intervening section rack 101 one by one along the moving direction; the upper layer filter belt 17 is sequentially sleeved on the upper layer driving roller 18, the upper layer supporting roller series component 5, the upper layer tensioning roller 10 and the outer side of the roller of the synergistic component in a sliding manner to form a closed loop; the receiving hopper 4 is installed on the high-interference pressure section rack 101 and is positioned above the upper-layer filter belt 17;

the lower 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 arranged at the lower layer of the high-pressure-intervening section rack 101 one by one along the moving direction; the lower layer filter belt 12 is sequentially sleeved on the lower layer driving roller 16, the lower layer supporting roller series assembly 13, the lower layer tension roller 11 and the outer side of the roller of the synergistic assembly in a sliding manner to form a closed loop;

the synergistic component comprises a pre-extrusion roller 15, a pre-extrusion roller 7, an adjusting roller 6 and an extrusion roller group 2 which are arranged one by one along the moving direction;

the upper driving roller 18 and the lower driving roller 16 are linked by gears;

the deep press assembly includes: a driving roller 23, a press section supporting roller series assembly 24, a spiral distributing device 20, a thickness control roller 21, a conveying belt 25 and a squeezing assembly 22 which are installed one by one on the press section frame 102 along the moving direction; the conveying belt 25 is sequentially sleeved outside the driving roller 23 and the squeezing section supporting roller series assembly 24 in a sliding manner 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;

the compression assembly 22 includes a telescopic device 221 and a compression plate 222 fixed to the telescopic end of the telescopic device 221.

It is thus clear that the mud deep dehydration device is squeezed in depth to continuous type that this embodiment provided, at first utilize the cooperation of the upper strata filter band subassembly and the lower floor filter band subassembly of high dry pre-compaction section, carry out the preliminary extrusion in order to desorption partial moisture content to the mud of high moisture content, then will extrude the mud storage behind the desorption moisture content in the adjusting box of setting between high intervention pressure section and the squeezing section short time transition back in, go to the squeezing section, finally carry out further superstrong pressure dehydration to the mud after the aforesaid is squeezed in advance by the degree of depth of squeezing the section again and squeeze the subassembly. And after primary dehydration is finished, the adjusting box can drop materials again, next circulation is carried out, and the sludge is continuously and deeply dehydrated. The sludge deep dehydration device is squeezed to continuous type degree of depth of this embodiment, but continuous dehydration, dewatering pressure is superstrong, and the simple operation compares in current dewatering device, and dewatering effect is more ideal, and the mud moisture content is low, and is small, satisfies relevant standard and the subsequent processing of being convenient for.

The following detailed description of the embodiments will be made with reference to the accompanying fig. 1-3, and the detailed explanation of specific components and connections between components.

In this embodiment, a mud deep dehydration device is pressed to continuous type degree of depth at during operation, is divided into two stages of the high intervention pressure section of mud and the section of squeezing of mud, and the high intervention pressure section is through the precompression dehydration that upper filter assembly and lower floor filter assembly cooperate the completion mud, squeezes the section and accomplishes the deep dehydration of mud through the degree of depth and squeezes the subassembly.

Specifically, referring to fig. 1, the sludge deep dehydration apparatus includes a dehydration frame 1; the dewatering frame 1 includes a high interference press section frame 101 for mounting the upper and lower belt assemblies and a press section frame 102 for mounting the depth press assembly.

And a regulating box 19 is provided at the junction of the high-intervention press section frame 101 and the press section frame 102. The conditioning tank 19 is used for temporarily containing the dewatered sludge treated by the high-dry pre-pressing section. In order to facilitate seamless connection between the high-dry prepressing section and the pressing section, the adjusting box 19 is arranged at the joint of the high-dry prepressing section frame 101 and the pressing section frame 102 and is positioned below the sludge discharge positions of the scrapers of the upper driving roller 18 and the lower driving roller 16. While the discharge opening of the conditioning box 19 is located directly above the conveyor belt 25 in the press section. In addition, in order to prevent the overflow of the dewatered sludge, a material stopper 26 is provided at an upper portion of an inner side wall of the conditioning tank 19 for preventing the excess sludge therein.

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 arranged on the upper layer of the high-pressure-intervening section frame 101 one by one along the moving direction of the sludge. The upper layer filter belt 17 is sequentially sleeved outside the upper layer driving roller 18, the upper layer supporting roller series component 5, the upper layer tension roller 10 and the roller wheel of the synergistic component in a sliding manner, and a closed loop is formed. The receiving hopper 4 is used for receiving the conveyed sludge with high water content, is arranged on the high-interference pressure section rack 101 and is positioned above the upper filter belt 17, so that the sludge can just fall on the upper filter belt 17 when falling from the lower end of the receiving hopper 4.

The lower band 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 filtering belt 12 which are arranged at the lower layer of the high-pressure-section frame 101 one by one along the moving direction of the sludge. The lower filter belt 12 is sequentially slidably sleeved outside the lower driving roller 16, the lower supporting roller series assembly 13, the lower tensioning roller 11 and rollers of various rollers in the cooperative assembly to form a closed loop.

The cooperative components are the common parts of the upper layer filter belt component and the lower layer filter belt component, and comprise a pre-extrusion roller 15, a pre-extrusion roller 7, a regulating roller 6 and an extrusion roller group 2 which are arranged one by one along the moving direction of the sludge. The cooperating assembly is mounted in the middle layer of the high interference pressure section frame 101 to facilitate cooperation of the upper and lower belt assemblies.

In order to facilitate the sludge to be extruded between the filter belts, the extruded water is easier to discharge, the cambered surfaces outside the rollers of the prepressing roller 15 are provided with water-permeable counter bores 151 and transverse water-draining corrugated wire grooves 152 in an arrangement manner, and the blind plates at the two ends of the prepressing roller 15 (flange covers for blocking the two end ports of the roller) are provided with water-draining holes 153. As shown in fig. 2 and 3.

In addition, the upper driving roller 18 is coupled with a first stepping motor to provide power for the operation of the upper filter belt assembly. And the upper driving roller 18 and the lower driving roller 16 are linked by a gear, so that when the first stepping motor drives the upper driving roller 18 to rotate, the upper driving roller 18 can drive the lower driving roller 16 to rotate reversely.

In addition, in order to ensure the cleaning and cleaning of the apparatus, 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 further installed on the high-interference pressure stage frame 101.

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 part 8 and a lower filter belt tensioning hydraulic part 9 are respectively arranged on the high-interference pressure section rack 101 and are respectively used for tensioning the upper filter belt 17 and the lower filter belt 12.

Meanwhile, in order to ensure the strength of each filter belt, a high-strength polyester filter belt is selected for the upper filter belt 17 and the lower filter belt 12.

When the sludge is dehydrated through the high-dry pre-pressing section, the sludge is transferred to the pressing section of the sludge through the adjusting box 19 for deep dehydration.

The deep press assembly of the press section comprises: a driving roller 23, a press section supporting roller series assembly 24, a spiral distributing device 20, a thickness control roller 21, a conveying belt 25 and a squeezing assembly 22 which are installed on the press section frame 102 one by one along the moving direction of the sludge. The conveyor belt 25 is sequentially slidably fitted over the outer sides of the drive roller 23 and the press-section support roller series assembly 24 to form a closed loop. A supporting plate with water filtering grains and water filtering holes is arranged below the conveyor belt 25. The spiral distributing device 20 and the thickness control roller 21 are used in cooperation for evenly and flatly distributing the sludge, so that the sludge is even in thickness on the conveyor belt 25. The spiral distributing device 20 is coupled with a second stepping motor, and the second stepping motor works to drive the spiral distributing device 20 to rotate to distribute the sludge falling from the adjusting box 19. In addition, in order to ensure that the second stepping motor is started and stopped as required, so as to control the spiral distributing device 20, the driving roller 23 and the conveyor belt 25 to work at preset time intervals, the second stepping motor is connected with a controller to control the second stepping motor to be started and stopped. In addition, the spiral distributing device 20 and the driving roller 23 are started and stopped in a linkage manner, so that the two devices can be started or stopped at the same time.

The pressing unit 22 is located above the conveyor belt 25 between the thickness control roll 21 and the drive 23, and is used for pressing again with ultra-strong force to remove water deeper when the sludge is conveyed through the position. The compression assembly 22 includes a retractor 221 and a compression plate 222 secured to the retractable end of the retractor 221. The pressing plate 222 is generally a high-strength rubber plate.

In addition, a limit switch is provided on the press section frame 102 above the expansion device 221 to limit the expansion link of the expansion device 221.

In addition, a pressure sensing device is arranged on the lower surface of the extrusion plate 222 to monitor the extrusion pressure of the extrusion plate 222 on the sludge, so that the later adjustment can be performed in real time according to actual conditions.

And an ultra-high strength nylon belt is selected as the conveyor belt 25 in order to secure the strength of the conveyor belt 25.

The working principle of the continuous deep-pressing sludge deep dehydration device provided by the invention is as follows:

when the device works, the conveyed sludge with high water content enters the material receiving hopper 4 to be uniformly distributed, and the sludge falls on the upper filter belt 17. The step motor who connects upper drive roller 18 works, drive upper drive roller 18 and rotate, upper drive roller 18 drives lower floor's drive roller 16 antiport through the gear, upper filter belt 17 and lower floor's filter belt 12 respectively through half a circle of reverse separation motion back under respective backing roll supports, syntropy motion and coincidence again, wrap up in between upper and lower two-layer filter belt and press from both sides mud, later through the pre-compaction, through continuous extrusion dehydration again, two filter belts are through half a circle syntropy extrusion motion after, separate the reversal circle again, in proper order continuous operation, the mud of pre-compaction dehydration drops in regulating box 19. Adjusting box 19 sludge of keeping in, every interval period, the step motor of the superstrong section of squeezing of controller control opens and stops, the mud of adjusting box 19 falls on conveyer belt 25 in the motion process, the spiral distributing device 20 of rear end, the even cloth that levels of thickness control roller 21, the length of cloth is the extrusion service range of rear end stripper plate 222 at every turn, conveyer belt 25 stall behind the cloth, telescoping device 221 extends and drives stripper plate 222 and squeeze on conveyer belt 25, the centre is wrapped up in and is pressed mud in, for taking the water filtering line below the conveyer belt 25, the backup pad in drainage hole, the back conveyer belt 25 that finishes squeezing moves forward and exports moisture content mud, adjusting box 19 blanking once more simultaneously, and circulate in proper order, make the mud degree of depth dehydration.

In summary, compared with the prior art, the method has the following beneficial effects:

1. the invention provides a continuous deep-pressing sludge deep dehydration device, which comprises the steps of firstly utilizing the cooperation of an upper filter belt component and a lower filter belt component of a high-dry prepressing section to perform prepressing on sludge with high water content to remove partial water, then storing the sludge subjected to the water removal by the prepressing in a regulating tank arranged between the high-dry prepressing section and a pressing section for transient transition, then transferring to the pressing section, and finally further performing super-strong pressure dehydration on the sludge subjected to the prepressing and dehydration by the deep pressing component of the pressing section. And after primary dehydration is finished, the adjusting box can drop materials again, next circulation is carried out, and the sludge is continuously and deeply dehydrated. The continuous deep-pressing sludge deep dehydration device can perform continuous dehydration, has super-strong dehydration pressure and convenient operation, has more ideal dehydration effect, low sludge moisture content and small volume compared with the existing dehydration device, meets the relevant standards and is convenient for subsequent treatment.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The continuous deep-pressing sludge deep dehydration device is characterized by comprising a dehydration rack (1);

the dewatering rack (1) comprises a high-dry prepressing section rack (101) for mounting an upper layer filter belt component and a lower layer filter belt component and a squeezing section rack (102) for mounting a deep squeezing component, and an adjusting box (19) is arranged at the joint of the high-dry prepressing section rack (101) and the squeezing section rack (102);

the upper belt assembly comprises: an upper layer driving roller (18), an upper layer supporting roller series assembly (5), an upper layer tensioning roller (10), a synergistic assembly, an upper layer filter belt (17) and a receiving hopper (4) which are arranged on the upper layer of the high-pressure-intervening section rack (101) one by one along the moving direction; the synergistic assembly comprises a pre-extrusion roller (15), a pre-extrusion roller (7), an adjusting roller (6) and an extrusion roller set (2), which are arranged one by one along the moving direction; the upper layer filter belt (17) is sequentially sleeved on the upper layer driving roller (18), the upper layer supporting roller series assembly (5), the upper layer tensioning roller (10) and the outer side of the roller of the synergistic assembly in a sliding manner to form a closed loop; the receiving hopper (4) is arranged on the high-dry pre-pressing section rack (101) and is positioned above the upper filter belt (17);

the lower 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 arranged at the lower layer of the high-interference pressing section rack (101) one by one along the moving direction; the lower layer filter belt (12) is sequentially sleeved on the outer sides of the lower layer driving roller (16), the lower layer supporting roller series assembly (13), the lower layer tensioning roller (11), the pre-extrusion roller (15), the pre-compression roller (7), the adjusting roller (6) and the roller in the extrusion roller group (2) in a sliding manner to form a closed loop;

the upper layer driving roller (18) and the lower layer driving roller (16) are linked through a gear;

the deep press assembly includes: a driving roller (23), a press section supporting roller series assembly (24), a spiral material distribution device (20), a thickness control roller (21), a conveying belt (25) and a squeezing assembly (22) which are arranged on the press section frame (102) one by one along the moving direction; the conveying belt (25) is sequentially sleeved outside the rollers in the driving roller (23) and the pressing section supporting roller series assembly (24) in a sliding manner to form a closed loop; the squeezing assembly (22) is located above a conveyor belt (25) between the thickness control roller (21) and the drive roller (23);

the extrusion assembly (22) comprises a telescopic device (221) and an extrusion plate (222) fixed at the telescopic end of the telescopic device (221).

2. The continuous deep-pressing sludge deep-dewatering device as claimed in claim 1, characterized in that water-permeable counter bores (151) and transverse drainage corrugated wire grooves (152) are arranged on the cambered surface of the outer side of the pre-pressing roll (15), and drainage holes (153) are arranged on blind plates at two ends of the pre-pressing roll (15).

3. The continuous deep-pressing sludge deep-dewatering device as claimed in claim 1, characterized in that the adjusting box (19) is arranged at the joint of the high-dry pre-pressing section frame (101) and the pressing section frame (102) and is positioned below the scraper sludge discharging position of the upper driving roller (18) and the lower driving roller (16); meanwhile, a discharge hole of the adjusting box (19) is positioned right above the conveyor belt (25); and a material limiter (26) is arranged on the upper part of the inner side wall of the adjusting box (19).

4. The continuous deep pressing sludge deep dewatering device of claim 1, characterized in that the upper driving roller (18) is coupled with a first stepping motor.

5. The continuous deep-pressing sludge deep-dewatering device as claimed in claim 1, characterized in that the spiral material distribution device (20) is coupled with a second stepping motor, and the second stepping motor is connected with a controller; and the spiral distributing device (20) and the driving roller (23) are started and stopped in a linkage manner.

6. The continuous deep-pressing sludge deep-dewatering device as claimed in claim 1, characterized in that a limit switch is arranged on the pressing section frame (102) above the telescopic device (221); and a pressure sensing device is arranged on the lower surface of the extrusion plate (222).

7. The continuous deep-pressing sludge deep-dewatering device according to claim 1, characterized in that the high-dry prepressing section frame (101) is further provided with an upper layer cleaning pipe (3) for cleaning the upper layer filter belt (17) and a lower layer cleaning pipe (14) for cleaning the lower layer filter belt (12).

8. The continuous deep-pressing sludge deep-dewatering device according to claim 1, characterized in that: and an upper layer filter belt tensioning hydraulic part (8) and a lower layer filter belt tensioning hydraulic part (9) are also respectively arranged on the high-dry prepressing section rack (101).

9. The continuous deep pressing sludge deep dewatering device of claim 1, characterized in that the upper filter belt (17) and the lower filter belt (12) are high strength polyester filter belts.

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