CN219098959U - Three-dimensional vibrating variable-pitch stepped sludge thickener - Google Patents

Abstract

The utility model introduces a three-dimensional vibrating variable-pitch stepped sludge thickener, which comprises: the sludge thickener comprises a spiral thickener body and a stepped extrusion filtering device, wherein the spiral thickener body is connected with the stepped extrusion filtering device in a combined way; a vibrating motor is arranged outside the spiral concentrating main body; the spiral concentration main body comprises a conical vibration dewatering screen, a variable-diameter variable-pitch pusher and a conical discharge regulator; the variable-diameter variable-pitch pusher is positioned in the conical vibration dewatering screen; the conical discharging regulator is positioned at the rear end of the discharging port of the conical vibrating dewatering screen. The utility model further realizes the release of free water and free water in the sludge through the spiral concentration main body and the stepped extrusion filtering device, and provides a pretreatment basis for the integrated concentration of the sludge with high dryness or ultra-high dryness.

Description

Three-dimensional vibrating variable-pitch stepped sludge thickener

Technical Field

The utility model relates to the field of manufacturing of sludge dewatering devices, in particular to a three-dimensional vibrating variable-pitch stepped sludge thickener.

Background

Along with the continuous improvement of the urban sewage treatment rate in China, the sludge yield is also continuously increased. The sludge contains a large amount of water, organic matters and nutrient elements, and has a high bioavailability prospect. However, the untreated sludge has high water content, large volume and low heat value, and is not suitable for industrial production. Sludge dewatering equipment has been developed in which screw press dehydrators are often used for the dewatering process of sludge, making an important contribution to the free water reduction process of sludge. Compared with other dewatering equipment, the spiral squeezing dewatering machine has larger contact area with materials and higher extrusion efficiency when in operation. And the shaft assembly is adopted for direct driving, so that the equipment is stable and reliable in operation, relatively low in energy consumption and suitable for the sustainable development concept.

However, due to the arrangement of the structure inside the dehydrator, the problems of mesh blockage and the like of sludge can be frequently generated in the dehydration process, so that the dehydration efficiency of the equipment is greatly reduced, the energy consumption is correspondingly increased, and the normal dehydration use cannot be satisfied.

As disclosed in chinese patent (CN 213446782U), a novel spiral-stacked sludge dewatering machine is disclosed, which comprises a frame and a sludge dewatering tank connected to the frame, the sludge dewatering tank is rotationally connected with a dewatering spindle driven by a power mechanism, a dewatering bolt is mounted on the dewatering spindle, a movable ring and a fixed ring which are tightly arranged and sleeved outside the dewatering screw are also mounted in the sludge dewatering tank, a water outlet is provided at the bottom of the sludge dewatering tank, the dewatering spindle is provided with a front connecting section, a dewatering section and a rear connecting section, the outer surface of the dewatering section is conical, the cross-section diameter of the dewatering section is gradually increased from front to back, the dewatering screw is connected to the dewatering section, the pitch of the dewatering screw is gradually decreased from front to back, and the major diameter of the dewatering screw is smaller than the inner diameter of the fixed ring and larger than the inner diameter of the movable ring. The structure adopts the diameter-variable screw, so that the extrusion effect and the dehydration effect of the dehydrator are improved, but the problems of incomplete extrusion and dehydration still exist, and the working efficiency is low. And the dehydrator adopts traditional power structure drive, and the function that power system provided is single, can't realize the vibration operation of mud, leads to very easily producing the problem of mud jam mesh.

As another chinese patent (CN 205687777U), a sludge squeezing and dewatering device is disclosed, which includes a sludge conditioning unit and a screw squeezing and dewatering machine; the end face of the other end of the dehydrator box body is an opening structure, and a compression cone is arranged outside the opening structure; the inside of the dehydrator box body is transversely and rotatably provided with a central shaft, the outside of the central shaft is sleeved with a variable pitch helical blade, and the outside of the variable pitch helical blade is circumferentially sleeved with a percolate screen barrel. As the preferable sludge conditioning unit, the conditioning and stirring functions are realized, so that the screen is not easy to be blocked by a filter cake, and the sludge squeezing and dewatering device can stably and reliably run for a longer time. However, in the dehydration process, the device is not complete in separation of water and mud in the box body, so that the water content in the mud is still higher. And the direction of the dry mud discharged from the spiral squeezing dehydrator cannot be controlled, and the dry mud cannot be smoothly connected with the subsequent process to carry out further processing treatment.

Therefore, most of spiral sludge dewatering equipment commonly used in the current market has the problems of blockage of a filter screen hole and insufficient separation of water and sludge. In recent years, the nation has proposed the idea of "preparing biomass fuel from sludge", i.e. blending with coal or biomass straw as fuel for combustion. However, after the sludge is dehydrated by the traditional equipment, the water content of the mud cake still reaches up to 60%, which means that the traditional equipment cannot remove a large amount of free water and free water in the sludge, and the recycling of the sludge cannot be realized. Based on the method, a novel, economical and efficient sludge concentration device is developed for further realizing the release of free water and free water in the sludge and further providing a pre-dehydration basis for the high-dryness or ultra-high-dryness integrated concentration treatment of the sludge.

Disclosure of Invention

The utility model aims to further improve the dehydration efficiency of sludge concentration equipment. In the spiral concentrator body: firstly, the vibration motor is used for completing horizontal, vertical and transverse three-dimensional vibration, so that the self-cleaning function is realized, and the problem of blocking of sludge on a filter screen is solved. Secondly, a variable-diameter variable-pitch pusher is adopted to realize the reverse movement of water and mud in the sludge concentration and dehydration process, and the mixing contact ratio of the water and the mud is reduced, so that free water is thoroughly separated from the sludge. Thirdly, the conical discharging regulator arranged at the discharging hole effectively controls the moisture of the outlet sludge; in a step-type squeeze filter apparatus: the installed driving roller realizes the re-concentration of materials, further improves the dehydration efficiency, and provides a pretreatment basis for the high-dryness or ultra-high-dryness integrated concentration of sludge.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a three-dimensional vibrating variable pitch stepped sludge thickener comprising: the sludge thickener comprises a spiral thickener body and a stepped extrusion filtering device, wherein the spiral thickener body is connected with the stepped extrusion filtering device in a combined way; the discharge port of the spiral concentration main body is positioned above the feed port of the stepped extrusion filtering device.

Preferably, a vibration motor is arranged outside the spiral concentration main body; the spiral concentration main body comprises a conical vibration dewatering screen, a variable-diameter variable-pitch pusher and a conical discharge regulator; the variable-diameter variable-pitch pusher is positioned in the conical vibration dewatering screen; the conical discharging regulator is positioned at the rear end of the discharging port of the conical vibrating dewatering screen.

Preferably, the stepped extrusion filter device comprises an upper extrusion assembly, a lower extrusion assembly and a drive roller assembly; the upper extrusion assembly comprises an upper filter belt, a guide roller and a deviation adjuster, and the guide roller and the deviation adjuster in the upper extrusion assembly are in transmission connection through the upper filter belt; the lower extrusion assembly comprises a lower filter belt, a guide roller and a deviation adjuster; the guide roller and the deviation adjuster in the lower extrusion assembly are in transmission connection through a lower filter belt; the upper and lower filter belts pass together through a drive roller assembly.

Preferably, the drive roller assembly comprises a plurality of drive rollers, the diameters of the drive rollers are gradually reduced, and the drive rollers are in transmission connection through an upper filter belt and a lower filter belt.

Preferably, the outer hub diameter and pitch spacing of the helical blades of the variable diameter variable pitch pusher are progressively reduced.

Preferably, the variable-diameter variable-pitch pusher is further provided with a driving motor, and an internal input shaft of the variable-diameter variable-pitch pusher is in transmission connection with an output shaft of the driving motor.

Preferably, the conical discharging regulator comprises a conical discharging port and a material regulator, and the conical discharging port and the material regulator are combined and detachably connected; the material regulator is provided with an absorption filter screen, and the material of the absorption filter screen is an active adsorption material.

Preferably, the upper filter belt and the lower filter belt are also provided with cleaners; the cleaner comprises a spray head and a telescopic rod, and the telescopic rod is detachably connected with the spray head.

Preferably, the feed inlet of the spiral concentration main body is also provided with a storage box, and the storage box is connected with the spiral concentration main body in a combined way; the stirring device is arranged in the storage box and is detachably connected with the storage box.

Preferably, a water filtering tank is also arranged below the spiral concentration main body and the stepped extrusion filtering device.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. the utility model provides a three-dimensional vibrating variable-pitch stepped sludge thickener, which is characterized in that: the vibration motor is used for completing horizontal, vertical and transverse three-dimensional vibration, the function of multidirectional vibration self-cleaning of the filter screen is achieved, and materials uniformly pass through the filter screen. Solves the problem that the material of the traditional spiral dewatering equipment can not continuously pass through the filter screen, thereby blocking the filter screen. And the cleaning and maintenance times of the equipment are further reduced, the service life of the equipment is prolonged, the equipment is more reliable, the equipment can be ensured to run continuously and efficiently for a long time, and the economic production benefit is improved.

2. The utility model provides a three-dimensional vibrating variable-pitch stepped sludge thickener, which is characterized in that: compared with the traditional spiral structure, the variable-diameter variable-pitch pusher is more energy-saving, and can realize longer movement distance in equal operation time, thereby concentrating more materials. And the adopted variable-diameter variable-pitch helical blade realizes the reverse movement of water and mud in the sludge concentration and dehydration process, reduces the mixing contact ratio of the water and the mud, and thoroughly separates free water from the sludge.

3. The utility model provides a three-dimensional vibrating variable-pitch stepped sludge thickener, which is characterized in that: the conical discharge regulator that the discharge gate set up, but the installation of the conical discharge gate of adjustable opening angle has realized the control to the material trend on the one hand, conveniently further carries cascaded extrusion filter equipment to realize with cascaded extrusion filter equipment's composite connection. On the other hand, the water content of the outlet sludge is more effectively controlled through the active adsorption filter screen, so that the sludge concentration efficiency is improved.

4. The utility model provides a three-dimensional vibrating variable-pitch stepped sludge thickener, which is characterized in that: through the drive rollers of different diameters of ladder formula arrangement, realize concentrating the material once more high efficiency, further reduce the moisture content of material. Compared with the traditional equal-diameter roller, the unequal-diameter driving roller used in the application can thoroughly squeeze materials for a longer time through adjusting the diameter when the materials pass through the driving roller.

5. According to the three-dimensional vibrating variable-pitch stepped sludge thickener provided by the utility model, free water and free water in sludge are more fully released, so that the release of free water and free water in sludge is further realized, a pretreatment basis is further provided for the high-dryness or ultra-high-dryness integrated concentration of sludge, the water content in sludge is up to below 45% or even lower, and the treated sludge cake can be mixed with coal or biomass straw to prepare biomass fuel for combustion.

The foregoing description is only a summary of the technical solutions of the present application, so that the technical means of the present application may be implemented according to the content of the specification, and so that the foregoing and other objects, features and advantages of the present application may be more clearly understood, the following detailed description of the preferred embodiments of the present application is given in conjunction with the accompanying drawings.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of the specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

For a clearer description of embodiments of the present application, or of the prior art, reference will be made to the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and, together with the description, serve to explain the principles of the utility model.

It will be apparent to those of ordinary skill in the art that the drawings in the following description are of some embodiments of the present application and that other drawings may be derived from these drawings without the exercise of inventive faculty. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

Wherein:

FIG. 1 is a general view of a sludge thickener structure according to the present utility model;

FIG. 2 is a main spiral concentration block diagram of the sludge thickener provided by the utility model;

FIG. 3 is a diagram of a stepped extrusion filter device of the sludge thickener provided by the utility model;

fig. 4 is a storage tank diagram of the sludge thickener provided by the utility model.

Reference numerals: 1. a spiral concentrating body; 2. a stepped extrusion filtering device; 3. a vibration motor; 4. conical vibrating dewatering screen; 5. a variable diameter variable pitch pusher; 6. a driving roller; 7. a filter belt is arranged; 8. a guide roller; 9. a polarization adjuster; 10. a lower filter belt; 11. a driving motor; 12. a conical discharge port; 13. a material adjuster; 14. a washer; 15. a storage bin; 16. a water filtering tank.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. indicate the azimuth or positional relationship as shown based on the drawings

In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the present application. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the present embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the "one embodiment" or "this embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the present application may repeat reference numerals in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: the terms "/and" herein describe another associative object relationship, indicating that there may be two relationships, e.g., a/and B, may indicate that: the character "/" herein generally indicates that the associated object is an "or" relationship.

The term "at least one" is herein merely an association relation describing an associated object, meaning that there may be three kinds of relations, e.g., at least one of a and B may represent: a exists alone, A and B exist together, and B exists alone.

It is further noted that 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. Moreover, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Example 1

The embodiment mainly introduces a general structure of a three-dimensional vibrating variable-pitch stepped sludge thickener.

Please refer to fig. 1.

A three-dimensional vibrating variable pitch stepped sludge thickener comprising: the sludge thickener body, the sludge thickener body includes spiral concentrated main part and cascaded extrusion filter equipment, combination connection about between spiral concentrated main part 1 and the cascaded extrusion filter equipment 2, the combination about the position of two can be changed according to actual production demand. The spiral concentration main body 1 and the stepped extrusion filtering device 2 can be independently operated and are respectively applied to different technological processes.

Further, a vibration motor 3 is arranged outside the spiral concentration main body 1;

further, the spiral concentration main body 1 comprises a conical vibration dewatering screen 4, a variable-diameter variable-pitch pusher 5 and a conical discharge regulator; the variable-diameter variable-pitch pusher 5 is positioned in the conical vibration dewatering screen 4; the toper ejection of compact regulator is located the rear end of toper vibration dewatering screen 4 discharge gate, toper ejection of compact regulator can be dismantled with spiral concentrated main part 1 and be connected, when needs governing equipment, detachable connected mode makes the inspection and the change of equipment convenient and fast more.

Further, the vibration motor 3 is installed at one side of the spiral concentration main body 1 in the horizontal, vertical and transverse directions, the installation position of the vibration motor 3 can be adjusted according to a specific operation room on the basis of guaranteeing multidirectional vibration of the conical vibration dewatering screen 4, and the vibration motor 3 is fixedly connected with the spiral concentration main body 1.

Further, driving motor 11 is further arranged outside the variable-diameter variable-pitch pusher 5, the driving motor 11 is detachably connected with the spiral concentration main body 1, and when equipment needs to be adjusted, the detachable connection mode enables equipment to be checked and replaced more conveniently and rapidly. The internal input shaft of the variable-diameter variable-pitch pusher 5 is in transmission connection with the output shaft of the driving motor 11, and the transmission connection comprises a left transmission connection and a right transmission connection.

The stepped extrusion filtering device 2 comprises an upper extrusion assembly, a lower extrusion assembly and a driving roller assembly; the upper extrusion assembly comprises an upper filter belt 7, a guide roller 8 and a deviation adjuster 9, and the guide roller 8 and the deviation adjuster 9 in the upper extrusion assembly are in transmission connection through the upper filter belt 7; the lower extrusion assembly comprises a lower filter belt 10, a guide roller 8 and a deviation adjuster 9; the guide roller 8 and the deflector 9 in the lower extrusion assembly are in transmission connection through a lower filter belt 10; the upper and lower filter belts 7, 10 pass together through a drive roller assembly.

Further, the driving roller assembly comprises a plurality of driving rollers 6, the diameters of the driving rollers 6 are gradually reduced, and the diameters of the driving rollers 6 can realize independent linear change or nonlinear change, and can realize linear change or nonlinear change of the whole driving roller assembly; the driving rollers 6 are in transmission connection with each other through an upper filter belt 7 and a lower filter belt 10.

Further, the extrusion gap is formed between the guide rollers 8 and the driving roller assembly.

Furthermore, the setting of the deviation adjusting device 9 aims to solve the problem that the filter belt deviates from a normal track in the high-speed running process of the equipment.

Furthermore, the driving roller assemblies are arranged in a step-type manner, and the spacing of the step-type arrangement can be specifically adjusted according to the actual production process, so that the driving roller assemblies are not limited to the arrangement shown in the figure.

Further, the conical discharging regulator comprises a conical discharging hole 12 and a material regulator 13, and the conical discharging hole 12 and the material regulator 13 are combined and detachably connected; the angle of the conical discharge hole 12 can be adjusted; the material regulator 13 is provided with an absorption filter screen, and the material of the absorption filter screen is an active adsorption material.

Further, the upper filter belt 7 and the lower filter belt 10 are also provided with a cleaner 14; the washer 14 includes a spray head and a telescoping wand that is removably connected to the spray head.

The beneficial effect of this embodiment is, accomplishes level, perpendicular and horizontal three-dimensional vibration through vibrating motor, realizes the multidirectional vibration self-cleaning's of filter screen function for the material evenly passes through the filter screen. Solves the problem that the material of the traditional spiral dewatering equipment can not continuously pass through the filter screen, thereby blocking the filter screen. And the cleaning and maintenance times of the equipment are further reduced, the service life of the equipment is prolonged, the equipment is more reliable, the equipment can be ensured to run continuously and efficiently for a long time, and the economic production benefit is improved. The conical discharge regulator that the discharge gate set up, but the installation of the conical discharge gate of adjustable opening angle has realized the control to the material trend on the one hand, conveniently further carries cascaded extrusion filter equipment to realize with cascaded extrusion filter equipment's composite connection. On the other hand, the water content of the outlet sludge is more effectively controlled through the active adsorption filter screen, so that the sludge concentration efficiency is improved.

Example 2

Based on the above-described embodiment 1, the present embodiment further describes the structural configuration of the spiral concentrating body.

Please refer to fig. 2.

The outer hub diameter and pitch interval of the helical blades of the variable-diameter variable-pitch pusher 5 are gradually reduced.

Further, the diameter of the outer hub of the spiral blade of the variable-diameter variable-pitch pusher 5 is linearly or nonlinearly adjusted from the feed inlet of the spiral concentrating main body 1 to the discharge outlet of the spiral concentrating main body 1, so that linear adjustment can be performed, and the diameter of the outer hub of the spiral blade is gradually increased or gradually reduced from the feed inlet of the spiral concentrating main body 1 to the discharge outlet of the spiral concentrating main body 1. Nonlinear adjustment can also be performed, so that the diameters of the outer hubs of the spiral blades are different from the feed inlet of the spiral concentration body 1 to the whole section of the discharge outlet of the spiral concentration body 1.

Further, the pitch of the helical blade of the variable-diameter variable-pitch pusher 5 is adjusted linearly or nonlinearly along the axial interval, and the change of the pitch of the helical blade is similar to the change of the diameter of the outer hub of the helical blade.

Further, the diameter adjustment and the pitch adjustment of the variable-diameter variable-pitch pusher 5 include, but are not limited to, related or unrelated data changes, i.e. the changes between the two may be related or unrelated, and may be adjusted according to the self structural function.

Further, the diameters of the outer and inner structures of the conical vibrating dewatering screen 4 are gradually decreased towards the moving direction of the materials; the conical vibration dewatering screen 4 is provided with an inner layer of filter screen and an outer layer of filter screen, the filter screen is detachably connected with the conical vibration dewatering screen 4, the conical vibration dewatering screen 4 is provided with filter screens with meshes of different diameters, when the filtering requirements of products in the production process are different, the filter screens with meshes of corresponding diameters are replaced, or the filter screens are broken, so that the concentration process is influenced, and a new filter screen can be replaced.

The beneficial effect of this embodiment is, the variable diameter variable pitch pusher that adopts compares the more energy saving of traditional helical structure, can realize longer motion distance in equal operating time to concentrate more material. And the adopted variable-diameter variable-pitch helical blade realizes the reverse movement of water and mud in the sludge concentration and dehydration process, reduces the mixing contact ratio of the water and the mud, and thoroughly separates free water from the sludge. Furthermore, the conical vibration dewatering screen is provided with different filter screens, so that the requirements of different production processes can be met, and the scene adaptability of the equipment is improved.

Example 3

The structural configuration of the spiral concentrating body and the use thereof are described in addition to the embodiment 1 or the embodiment 2.

Please refer to fig. 2.

The conical discharging regulator comprises a conical discharging hole 12 and a material regulator 13, wherein the conical discharging hole 12 and the material regulator 13 are combined and detachably connected, and the distance between the two can be adjusted;

further, the opening angle of the conical discharging hole 12 is 45-90 degrees; the material regulator 13 is provided with an absorption filter screen, and the absorption filter screen can be selected to be more than 2 layers or 2 layers according to actual demands so as to realize higher efficient absorption efficiency, and the material of the absorption filter screen is an active adsorption material.

The beneficial effect of this embodiment is, the toper ejection of compact regulator that the discharge gate set up, but the installation of the toper discharge gate of adjustable opening angle has on the one hand realized the control to the material trend, conveniently further carries cascaded extrusion filter to realize with cascaded extrusion filter's composite connection. On the other hand, the water content of the outlet sludge is more effectively controlled through the active adsorption filter screen, so that the sludge concentration efficiency is improved.

Example 4

On the basis of embodiment 1, this embodiment mainly describes the structural configuration of the step-type extrusion filtering apparatus.

Please refer to fig. 3.

The deflector 9 installed in fig. 3 comprises a correcting wheel, wherein the upper end surface and the lower end surface of the correcting wheel are in sliding contact with the filter cloth, and the size of the contact surface is adjusted according to different requirements; the deflector 9 is equipped with 2 and more than 2 correcting wheels of different diameters for replacement.

The driving roller 6 comprises a limiting buckle and a central shaft, and the limiting buckle is fixedly connected with the central shaft; the step press filter device 2 is equipped with 2 and more drive rollers 6 of different diameters for replacement.

The cleaner 14 comprises a spray head and a telescopic rod, and the telescopic rod is detachably connected with the spray head; the telescopic length of the telescopic rod ranges from 0cm to 200cm; the washer 14 is provided with 2 or more spray heads with different pore sizes, and the spray heads with different pore sizes can control the diameter flow of the cleaning liquid so as to meet different cleaning requirements.

The beneficial effect of this embodiment is, in cascaded extrusion filter equipment: through the drive rollers of different diameters of ladder formula arrangement, realize concentrating the material once more high efficiency, further reduce the moisture content of material. Compared with the traditional equal-diameter roller, the unequal-diameter driving roller used in the application can thoroughly squeeze materials for a longer time through adjusting the diameter when the materials pass through the driving roller. And the deviation regulator and the cleaner can be replaced as required, so that the applicable requirements of equipment are further met, and efficient material dehydration and concentration are realized.

Example 5

The structural configuration of the sludge thickener is further described based on any of the above embodiments 1 or 2 or 3 or 4.

Please refer to fig. 4.

A material storage box 15 is also arranged at the feed inlet of the spiral concentration main body 1, and the material storage box 15 is connected with the spiral concentration main body 1 in a combined way; the storage box 15 internally provided with a stirring device which is detachably connected with the storage box 15.

Further, a water filtering tank 16 is also arranged below the spiral concentration main body 1 and the stepped extrusion filtering device 2.

A material collecting box is arranged at a discharge hole of the stepped extrusion filtering device 2 and is connected with the stepped extrusion filtering device 2 in a combined way;

the beneficial effects of this embodiment are that, the front and back ends of equipment are all provided with supporting facility, provide support for further improving the concentration process of material.

Example 6

The use of the sludge thickener is supplemented based on any of the embodiments 1 or 2 or 3 or 4 or 5 described above.

Please refer to fig. 1.

The three-dimensional vibrating variable-pitch stepped sludge thickener can be used for further realizing high-dryness or ultrahigh-dryness integrated concentration of sludge based on other devices arranged at the front end and the rear end of production according to actual production requirements. Free water, free water and intracellular water in the sludge are more fully released, so that the water content in the sludge is lower than 45%, and the treated sludge cake can be mixed with coal or biomass straw to prepare biomass fuel for combustion.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims (10)

1. A three-dimensional vibrating variable pitch stepped sludge thickener comprising: the sludge thickener body is characterized by comprising a spiral thickener body (1) and a stepped extrusion filter device (2), wherein the spiral thickener body (1) is connected with the stepped extrusion filter device (2) in a combined way; the discharge port of the spiral concentration main body (1) is positioned above the feed port of the stepped extrusion filtering device (2).

2. The three-dimensional vibrating variable-pitch stepped sludge thickener according to claim 1, wherein a vibrating motor (3) is installed outside the spiral thickener body (1); the spiral concentration main body (1) comprises a conical vibration dewatering screen (4), a variable-diameter variable-pitch pusher (5) and a conical discharge regulator; the variable-diameter variable-pitch pusher (5) is positioned in the conical vibration dewatering screen (4); the conical discharging regulator is positioned at the rear end of the discharging port of the conical vibrating dewatering screen (4).

3. The three-dimensional vibrating variable pitch stepped sludge thickener according to claim 1 or 2, wherein the stepped extrusion filtering device (2) comprises an upper extrusion assembly, a lower extrusion assembly and a driving roller assembly; the upper extrusion assembly comprises an upper filter belt (7), a guide roller (8) and a deviation adjuster (9), and the guide roller (8) and the deviation adjuster (9) in the upper extrusion assembly are in transmission connection through the upper filter belt (7); the lower extrusion assembly comprises a lower filter belt (10), a guide roller (8) and a deviation adjuster (9); the guide roller (8) and the deviation adjuster (9) in the lower extrusion assembly are in transmission connection through the lower filter belt (10); the upper filter belt (7) and the lower filter belt (10) pass through the driving roller assembly together.

4. A three-dimensional vibrating variable pitch stepped sludge thickener according to claim 3, wherein said drive roller assembly comprises a plurality of drive rollers (6), said drive rollers (6) having progressively smaller diameters, said drive rollers (6) being drivingly connected by an upper filter belt (7) and a lower filter belt (10).

5. A three-dimensional vibrating variable pitch stepped sludge thickener according to claim 2, wherein the outer hub diameter and pitch spacing of the helical blades of the variable diameter variable pitch pusher (5) are gradually reduced.

6. The three-dimensional vibrating variable-pitch stepped sludge thickener according to claim 2 or 5, wherein a driving motor (11) is further arranged outside the variable-diameter variable-pitch pusher (5), and an internal input shaft of the variable-diameter variable-pitch pusher (5) is in transmission connection with an output shaft of the driving motor (11).

7. The three-dimensional vibrating variable-pitch stepped sludge thickener according to claim 2, wherein the conical discharging regulator comprises a conical discharging port (12) and a material regulator (13), and the conical discharging port (12) and the material regulator (13) are combined and detachably connected; the material regulator (13) is provided with an absorption filter screen, and the material of the absorption filter screen is an active adsorption material.

8. A three-dimensional vibrating variable pitch stepped sludge thickener according to claim 3, wherein said upper and lower belts (7, 10) are further provided with cleaners (14); the cleaner (14) comprises a spray head and a telescopic rod, and the telescopic rod is detachably connected with the spray head.

9. The three-dimensional vibrating variable-pitch stepped sludge thickener according to claim 1 or 2 or 4 or 5 or 7 or 8, wherein the feed inlet of the spiral thickener body (1) is further provided with a storage tank (15), and the storage tank (15) is connected with the spiral thickener body (1) in a combined manner; the stirring device is arranged in the storage box (15), and the stirring device is detachably connected with the storage box (15).

10. The three-dimensional vibrating variable-pitch stepped sludge thickener according to claim 1 or 2 or 4 or 5 or 7 or 8, wherein a water filtering tank (16) is further arranged below the spiral thickener body (1) and the stepped extrusion filtering device (2).

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