CN114656122B - A sludge continuous squeezing device with rollers - Google Patents
A sludge continuous squeezing device with rollers Download PDFInfo
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- CN114656122B CN114656122B CN202210264846.0A CN202210264846A CN114656122B CN 114656122 B CN114656122 B CN 114656122B CN 202210264846 A CN202210264846 A CN 202210264846A CN 114656122 B CN114656122 B CN 114656122B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
本发明介绍了一种带辊轮的污泥连续性挤压装置，其包括变螺距阶梯式的污泥浓缩装置、带式挤压过滤机和带辊轮的带式板框高干度压榨机，所述变螺距阶梯式的污泥浓缩装置的出口位于带式挤压过滤机的入口处，所述带式挤压过滤机的出口位于带辊轮的带式板框高干度压榨机的入口处；本申请在带辊轮的带式板框高干度压榨机之前设置了变螺距阶梯式的污泥浓缩装置，通过逐渐减小的螺距，实现首次压力递进式挤压，在其后，还设置了带式挤压过滤机实现二次挤压，进一步降低污泥的干度；最后在带辊轮的带式板框高干度压榨机中设计上辊轮挤压组件和下辊轮挤压组件，并使用其对压板顶部进行挤压，进而实现污泥的连续脱水，获得高干度污泥。
The present invention introduces a continuous sludge extrusion device with rollers, which comprises a variable pitch stepped sludge concentrating device, a belt extrusion filter and a belt plate frame high-dryness press with rollers, wherein the outlet of the variable pitch stepped sludge concentrating device is located at the inlet of the belt extrusion filter, and the outlet of the belt extrusion filter is located at the inlet of the belt plate frame high-dryness press with rollers; the present application arranges a variable pitch stepped sludge concentrating device before the belt plate frame high-dryness press with rollers, and realizes the first progressive pressure extrusion by gradually reducing the pitch, and thereafter, a belt extrusion filter is further arranged to realize the secondary extrusion to further reduce the dryness of the sludge; finally, an upper roller extrusion assembly and a lower roller extrusion assembly are designed in the belt plate frame high-dryness press with rollers, and the upper roller extrusion assembly and the lower roller extrusion assembly are used to extrude the top of the pressing plate, thereby realizing continuous dehydration of the sludge and obtaining high-dryness sludge.
Description
Technical Field
The invention belongs to the field of sludge extrusion equipment manufacturing, and particularly relates to a sludge continuous extrusion device with rollers.
Background
At present, the traditional sludge dewatering technology and equipment mainly comprises a belt type filtering dehydrator, a centrifugal sedimentation filter, a plate-frame filter and the like, but the dewatering efficiency is very low and can not completely reach the national standard, so that the focus of the current research is on how to realize the maximization of the dewatering efficiency.
Chinese patent CN106630541a discloses a high-efficient electroosmosis sludge dewatering machine, which comprises a frame, a sludge dewatering device, a driving mechanism for providing power to the sludge dewatering device, a power supply, the sludge dewatering device comprises a plurality of movable screen plates and a plurality of squeeze plates, each of the movable screen plates and the squeeze plates is made of conductive material, and the movable screen plates and the squeeze plates are respectively communicated with a cathode and an anode of the power supply, a sludge squeezing channel extending along the horizontal direction is formed between the plurality of squeeze plates and the plurality of movable screen plates, the sludge squeezing channel is continuously narrowed from an inlet end to an outlet end, wherein the sludge squeezing channel forms a rapid squeezing area near the inlet end, and the narrowing rate of the sludge squeezing channel corresponding to the rapid squeezing area is greater than the narrowing rate of other areas of the sludge squeezing channel. But the driving power is larger, the equipment price is higher, and the water content of the filter cake is less ideal.
Chinese patent CN110217963B discloses a vertical sludge extrusion dehydrator, which comprises a main body, a first driving device and a plurality of dehydration assemblies vertically arranged, wherein each dehydration assembly comprises an upper die and a lower die, an extrusion cavity for accommodating sludge can be enclosed after the upper die and the lower die are clamped, a piston cavity and an extrusion piece are arranged on the upper die, the piston cavity can be connected with an external fluid power source, the extrusion piece is provided with a piston part which is slidably arranged in the piston cavity and can move up and down in the extrusion cavity under the pushing of fluid entering the piston cavity, the first driving device is used for driving each dehydration assembly to clamp or open the die, the sludge supply device is connected with the extrusion cavity of each dehydration assembly and used for conveying sludge into the extrusion cavity, and the water treatment device is connected with each dehydration assembly and used for collecting and treating water generated when each dehydration assembly extrudes sludge. The method can effectively reduce equipment cost, improve working efficiency and dehydration rate of sludge, and reduce pollution to the environment, but the dryness of the sludge is largely determined by the pressure of the sludge pump, so that the power consumption of the sludge pump is high, continuous dehydration cannot be realized, and the water content of a filter cake is not ideal.
In addition, the scheme only uses a single extrusion device to carry out dehydration, and only has one step, so that the water content of a dehydrated filter cake is higher, and the national requirements can not be met. Therefore chinese patent CN205409612U designed an adjustable bulking machine extrusion device, it includes the screw rod and is equipped with the barrel of nozzle, the screw rod rotates and sets up in the barrel, be equipped with the screw hole on the barrel, still include a plurality of pressure regulating units, pressure regulating unit includes sliding plate, pressure regulating board and lead screw, be equipped with on the pressure regulating board and supply the gliding recess of sliding plate, be equipped with the screw thread blind hole on the pressure regulating board, the one end and screw hole and screw thread blind hole screw thread fit of lead screw, the other end is located outside the barrel, the pressure regulating unit encloses into the tube-shape. Compared with the traditional extrusion device of the bulking machine, the device can simply and conveniently realize the adjustment of the gap between the pressure regulating plate and the screw rod by only rotating the screw rod, and effectively solves the problem that the pressure in the machine barrel can not be adjusted according to the types of materials. However, the method only uses a single step, and the pressure of the screw extrusion is the same, so that the effect of the subsequent extrusion is lost, and the electric power resource is seriously wasted.
In the process of improving the sludge extrusion device, the viscosity of the sludge also becomes the difficulty of improving the pressing plate, after one-time extrusion, the sludge is often stuck on the inner wall of the pressing plate, at this time, the sludge needs to be manually shoveled, and the sludge at the top of the pressing plate cannot be extruded because the sludge passes through the pressing plate, so that discontinuous dehydration of the sludge is caused, and the dryness after the sludge is compressed cannot meet the requirement. Therefore, the design of the sludge dewatering device can keep the press plate clean, consume less energy, realize continuous dewatering of sludge, further realize high dryness of sludge compression, and how to further squeeze the sludge before the press plate is squeezed is important in the preparation and research of the sludge dewatering equipment at the present stage.
Disclosure of Invention
In order to solve the problems, a sludge extrusion device is designed to realize continuous dehydration of sludge under the condition of consuming less energy, and further extrude the sludge before extrusion by a pressing plate, so that the effects of sludge dehydration and energy consumption balance are finally realized, and meanwhile, the effect of high-dryness sludge is obtained.
In order to achieve the effect, the invention designs a sludge continuous extrusion device with rollers.
A sludge continuous extrusion device with rollers comprises a variable-pitch stepped sludge concentration device, a belt extrusion filter and a belt plate frame high-dryness squeezer with rollers;
the outlet of the variable-pitch stepped sludge concentration device is positioned at the inlet of the belt extrusion filter;
The outlet of the belt extrusion filter is positioned at the inlet of the belt plate frame high dryness squeezer with the roller.
Preferably, the belt type plate frame high dryness squeezer with the rollers comprises a feeding frame assembly, a discharging frame, an extruding device with the rollers, an upper filter belt and a lower filter belt;
The feeding frame assembly is connected with the extrusion device with the roller through the upper filter belt and the lower filter belt;
the discharging frame is connected with an extrusion device with a roller through an upper filter belt and a lower filter belt;
The extrusion device with the roller comprises an extrusion outer frame, a main support frame, an extrusion power pump, a pressing plate assembly and a roller extrusion assembly;
the main support frame and the extrusion power pump are respectively arranged in the extrusion outer frame, and the roller extrusion assembly is arranged in the middle of the pressing plate assembly;
The extrusion power pump is fixed in the main support frame, and the pull rod of the extrusion power pump is connected with the pressing plate assembly.
Preferably, the variable-pitch stepped sludge concentration device comprises a round table shell, a fourth rotating motor and a screw rod;
the round table shell is hollow and is provided with a plurality of grooves, the two ends are not provided with top covers;
the screw rod is positioned in the round table shell;
the fourth rotating motor is connected with the screw rod through a transmission assembly;
The screw rod is provided with continuous thread pieces, and the pitch of the thread pieces is gradually reduced.
Preferably, the belt extrusion filter comprises two belt extrusion press belts and a belt conveyor, wherein the belt conveyor comprises a third rotating motor and a transmission rotating shaft, and the two belt extrusion press belts share part of the transmission rotating shaft.
Preferably, the pressing plate assembly comprises a plurality of pressing plates, and the connecting pressing plates are connected through a transmission shaft;
the transmission shaft is formed by connecting two connecting rods in a cross way through a rotating bolt,
One end of the transmission shaft is connected with the side surface of the pressing plate through a rotating bolt, and the other end of the transmission shaft is connected with the side surface of the other pressing plate, and the sludge continuous extrusion assembly with the rollers is characterized in that semicircular roller gaps are respectively arranged on two sides of the bottom of the pressing plate.
Preferably, the roller pressing assembly comprises an upper roller pressing assembly and a lower roller pressing assembly;
the upper roller extrusion assembly comprises a convex table extrusion piece and two upper connecting plates, the bottoms of the two upper connecting plates are rotationally connected with the convex table extrusion piece, and the tops of the two upper connecting plates are rotationally connected with the tops of the adjacent pressing plates respectively;
The lower roller extrusion assembly comprises a roller and two lower connecting plates, the tops of the two lower connecting plates are connected with the roller in a rotating way, and the bottoms of the two lower connecting plates are respectively connected with the bottoms of the adjacent pressing plates in a rotating way.
Preferably, the feeding frame assembly comprises a feeding frame, a first rotating motor, a first rotating roller, a second rotating motor and a second rotating roller;
the first rotating motor is in transmission connection with the first rotating roller;
the second rotating motor is in transmission connection with the second rotating roller;
the feeding frame comprises an upper layer and a lower layer, the width of the upper layer frame is smaller than that of the lower layer frame, the first rotating motor is located in the upper layer frame, and the second rotating motor is located in the lower layer frame.
Preferably, the discharging frame comprises an upper layer and a lower layer, the width of the upper layer frame is smaller than that of the lower layer frame, and filter belt auxiliary rollers are further arranged in the feeding frame assembly and the discharging frame.
Preferably, the bottom of the upper belt passes in an S-shape through the gaps between the platens in the platen assembly and the top of the lower belt passes in an S-shape through the gaps between the platens in the platen assembly.
Preferably, an intracellular water splitting device is also arranged between the belt type extrusion filter and the belt type plate frame high-dryness squeezer with rollers.
The application has the following advantages and effects:
1. According to the application, the roller extrusion assembly is designed, and comprises the roller and the V-shaped scraping plate, and the V-shaped scraping plate is used for extruding the top of the pressing plate, so that continuous dehydration of sludge is realized.
2. According to the application, the upper filter belt and the lower filter belt are designed, the sludge is wrapped by the upper filter belt and the lower filter belt for extrusion, so that the energy is saved, the high-dryness dehydration of the sludge is realized, and finally the sludge is discharged from the outlet of the discharging frame, thereby avoiding the condition that the pressure plate is cleaned manually due to pollution of the sludge.
3. According to the application, the variable-pitch stepped sludge concentration device is arranged before the belt type plate-frame high-dryness squeezer with the roller, and the first pressure progressive squeezing is realized through gradually reducing the pitch, so that the sludge dryness of 4-5% can be reduced before the squeezing of the pressing plate.
4. According to the application, the belt type extrusion filter is further arranged to realize secondary extrusion after the variable-pitch stepped sludge concentration device is arranged before the belt type plate frame high-dryness squeezer with the roller, so that the dryness of sludge can be reduced.
5. The application uses the device for cracking the intracellular water which is arranged between the belt type extrusion filter and the belt type plate frame high dryness squeezer with rollers, thereby realizing the further cracking and discharging of the intracellular water and further reducing the dryness of the sludge.
The foregoing description is only an overview of the present application, and is intended to provide a better understanding of the technical means of the present application, so that the present application may be practiced according to the teachings of the present specification, and so that the above-mentioned and other objects, features and advantages of the present application may be better understood, and the following detailed description of the preferred embodiments of the present application will be presented 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 of the present application when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. 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.
FIG. 1 is a block diagram of a sludge continuous extrusion device with rollers, which is provided by the invention;
FIG. 2 is a block diagram of a belt-type sheet-frame high dryness squeezer with rollers provided by the invention;
FIG. 3 is a front view of the belt-type sheet frame high dryness press with rollers provided by the invention;
FIG. 4 is a cross-sectional view of a belt-type sheet frame high dryness squeezer with rollers provided by the invention;
Reference numeral 1, a variable pitch stepped sludge concentration device; the device comprises a belt type extrusion filter, a belt type plate frame high dryness squeezer with rollers, a 4, a feeding frame assembly, a 5, a discharging frame, a 6, an extrusion device with rollers, a 7, an upper filter belt, a 8, a lower filter belt, a 9, an extrusion external frame, a 10, a main support frame, a 11, an extrusion power pump, a 12, a pressing plate assembly, a 13, a roller extrusion assembly, a 14, a round platform shell, a 15, a fourth rotating motor, a 16, a screw rod, a 17, a screw thread piece, a 18, a third rotating motor, a 19, a transmission shaft, a 20, a lower roller extrusion assembly, a 21, a feeding frame, a 22, a first rotating motor, a 23, a first rotating roller, a 24, a second rotating motor, a 25 and a second rotating roller.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying 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 of the present application. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the 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 "this 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 and/or letters in the various 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" herein is merely one kind of association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate that a alone exists, B alone exists, and a and B exist simultaneously, and the term "/and" herein is another kind of association object relation describing that two kinds of relations may exist, for example, a/and B may indicate that a alone exists, and a and B exist separately, and in addition, a character "/" herein generally indicates that the association object is an "or" relation.
The term "at least one" is used herein to describe only one association relationship of associated objects, and means that three relationships may exist, for example, at least one of A and B may mean that A exists alone, while 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 describes a belt-type plate-frame high-dryness squeezer with rollers in a sludge continuous squeezing device with rollers, and the specific structure is shown in fig. 2-4, wherein fig. 2 is a structure diagram of the belt-type plate-frame high-dryness squeezer with rollers, fig. 3 is a front view of the belt-type plate-frame high-dryness squeezer with rollers, and fig. 4 is a section diagram of the belt-type plate-frame high-dryness squeezer with rollers.
A sludge continuous extrusion device with rollers comprises a variable-pitch stepped sludge concentration device 1, a belt extrusion filter 2 and a belt plate frame high dryness squeezer 3 with rollers;
The outlet of the variable-pitch stepped sludge concentration device 1 is positioned at the inlet of the belt extrusion filter 2;
the outlet of the belt press filter 2 is positioned at the inlet of the belt plate frame high dryness squeezer 3 with rollers.
Further, the belt type plate frame high dryness squeezer with rollers 3 comprises a feeding frame assembly 4, a discharging frame 5, an extruding device 6 with rollers, an upper filter belt 7 and a lower filter belt 8;
The feeding frame assembly 4 is connected with the extrusion device 6 with a roller through an upper filter belt 7 and a lower filter belt 8;
the discharging frame 5 is connected with the extrusion device 6 with a roller through an upper filter belt 7 and a lower filter belt 8;
The extrusion device 6 with the roller comprises an extrusion outer frame 9, a main support frame 10, an extrusion power pump 11, a pressing plate assembly 12 and a roller extrusion assembly 13;
The main support frame 10 and the extrusion power pump 11 are arranged in the extrusion outer frame 13, and the pressing plate assembly 12 is arranged in the middle of the pressing plate assembly 12;
The squeeze power pump 11 is fixed in the main support frame 9, and its pull rod is connected with the platen assembly 12.
Further, the variable pitch stepped sludge concentration device 1 comprises a circular truncated cone shell 14, a fourth rotating motor 15 and a screw rod 16;
The round table shell 14 is hollow, and two ends of the round table shell are not provided with top covers;
the screw rod 16 is positioned in the round table shell 14;
The fourth rotating motor 15 is connected with the screw rod 16 through a transmission assembly;
the screw rod 16 is provided with a continuous thread piece 17, and the pitch of the thread piece 17 is gradually reduced.
Further, the belt extrusion filter 2 comprises two belt extrusion press belts and a belt conveyor, wherein the belt conveyor comprises a third rotating motor 18 and a transmission rotating shaft, and the two belt extrusion press belts share part of the transmission rotating shaft.
Further, the platen assembly 12 includes a plurality of platens, and the platens are connected by a transmission shaft 19;
The transmission shaft 19 is formed by connecting two connecting rods in a crossed way through a rotation bolt,
One end of the transmission shaft 19 is connected with the side surface of the pressing plate through a rotating bolt, and the other end of the transmission shaft 19 is connected with the side surface of the other pressing plate, and the sludge continuous extrusion assembly with the rollers is characterized in that semicircular roller gaps are respectively arranged on two sides of the bottom of the pressing plate.
Further, the roller pressing assembly 13 includes an upper roller pressing assembly and a lower roller pressing assembly 20;
The upper roller extrusion assembly comprises a convex table extrusion piece and two upper connecting plates, the bottoms of the two upper connecting plates are rotationally connected with the convex table extrusion piece, the tops of the two upper connecting plates are rotationally connected with the tops of the adjacent pressing plates respectively, and the two upper connecting plates form a V-shaped scraping plate.
The lower roller extrusion assembly 20 comprises a roller and two lower connecting plates, the tops of the two lower connecting plates are in rotary connection with the roller, the bottoms of the two lower connecting plates are respectively in rotary connection with the bottoms of the adjacent pressing plates, and the two lower connecting plates also form a V-shaped scraping plate.
Further, the feeding frame assembly 4 comprises a feeding frame 21, a first rotating motor 22, a first rotating roller 23, a second rotating motor 24 and a second rotating roller 25;
the first rotating motor 22 is in transmission connection with the first rotating roller 23;
the second rotating motor 24 is in transmission connection with the second rotating roller 25;
the feeding frame 21 comprises an upper layer and a lower layer, the width of the upper layer is smaller than that of the lower layer, the first rotating motor 22 is located in the upper layer, and the second rotating motor 24 is located in the lower layer.
Further, the discharging frame 5 comprises an upper layer and a lower layer, the width of the upper layer frame is smaller than that of the lower layer frame, and filter belt auxiliary rollers are further arranged in the feeding frame assembly 4 and the discharging frame 5.
Further, the bottom of the upper filter belt 7 passes through the gaps between the press plates of the press plate assembly 12 in an S-shape, and the top of the lower filter belt 8 passes through the gaps between the press plates of the press plate assembly 12 in an S-shape.
Further, an intracellular water splitting device is arranged between the belt type extrusion filter 2 and the belt type plate frame high dryness squeezer 3 with rollers.
According to the application, the roller extrusion assembly is designed, and comprises the roller and the V-shaped scraping plate, and the V-shaped scraping plate is used for extruding the top of the pressing plate, so that continuous dehydration of sludge is realized.
According to the application, the upper filter belt and the lower filter belt are designed, the sludge is wrapped by the upper filter belt and the lower filter belt for extrusion, so that the energy is saved, the high-dryness dehydration of the sludge is realized, and finally the sludge is discharged from the outlet of the discharging frame, thereby avoiding the condition that the pressure plate is cleaned manually due to pollution of the sludge.
The application uses the device for cracking the intracellular water which is arranged between the belt type extrusion filter and the belt type plate frame high dryness squeezer with rollers, thereby realizing the further cracking and discharging of the intracellular water and further reducing the dryness of the sludge.
Example 2
Based on the above embodiment 1, this embodiment mainly describes a preface sludge extrusion device of a belt-type sheet frame high dryness squeezer with rollers, and the specific structure is shown in fig. 1, and fig. 1 is a structural diagram of a sludge continuous extrusion device with rollers provided by the invention.
The outlet of the variable-pitch stepped sludge concentration device 1 is positioned at the inlet of the belt extrusion filter 2;
the outlet of the belt press filter 2 is positioned at the inlet of the belt plate frame high dryness squeezer 3 with rollers.
The variable-pitch stepped sludge concentration device 1 comprises a circular truncated cone shell 14, a fourth rotating motor 15 and a screw rod 16;
The round table shell 14 is hollow, and two ends of the round table shell are not provided with top covers;
the screw rod 16 is positioned in the round table shell 14;
The fourth rotating motor 15 is connected with the screw rod 16 through a transmission assembly;
the screw rod 16 is provided with a continuous thread piece 17, and the pitch of the thread piece 17 is gradually reduced.
Further, the belt extrusion filter 2 comprises two belt extrusion press belts and a belt conveyor, wherein the belt conveyor comprises a third rotating motor 18 and a transmission rotating shaft, and the two belt extrusion press belts share part of the transmission rotating shaft.
According to the application, the variable-pitch stepped sludge concentration device is arranged before the belt type plate-frame high-dryness squeezer with the roller, and the first pressure progressive squeezing is realized through gradually reducing the pitch, so that the sludge dryness of 4-5% can be reduced before the squeezing of the pressing plate.
According to the application, the belt type extrusion filter is further arranged to realize secondary extrusion after the variable-pitch stepped sludge concentration device is arranged before the belt type plate frame high-dryness squeezer with the roller, so that the dryness of sludge can be reduced.
Example 3
Based on the above embodiment 2, this embodiment mainly describes a method for using a sludge continuous extrusion device with rollers.
The method comprises the steps that firstly, coagulated sludge is extruded for the first time through a variable-pitch stepped sludge concentration device, the screw pitch of the screw thread sheet is gradually reduced and the pressure of the screw thread sheet is larger as the screw thread sheet is arranged on a screw rod, so that in the extrusion process of the variable-pitch stepped sludge concentration device, the dryness of the sludge can be reduced for the first time, about 5% can be reduced, then the sludge is conveyed to a belt type extrusion filter through a filter belt to be extruded for the second time, the dryness of the sludge is further reduced, at the moment, the sludge is conveyed to a belt type plate frame high dryness squeezer with rollers through the filter belt, and the roller extrusion assembly comprises rollers and V-shaped scrapers, wherein the bottoms of the V-shaped scrapers are fixedly connected with the rollers, and the tops of the V-shaped scrapers are positioned between the tops of adjacent pressing plates. The number of the roller extrusion assemblies is 2, one group is fixed at the bottom of the cross rod of the extrusion outer frame, and the other group is positioned on the main support frame. Further, the number of each set is plural, and the specific positions at which the platens are positioned are between the tops of adjacent platens when the platens are fully pressed. After the mud passes through the transmission space that upper filter and lower filter belt formed, through the clamp plate subassembly, until the whole clamp plate clearance of mud packing, first rotation motor and second rotation motor stop operation this moment, extrusion power pump drive clamp plate compress to extreme position, and V type scraper blade also can extrude the top of adjacent clamp plate this moment, and then realizes the continuous dehydration of mud. When the extrusion is completed, the extrusion power pump drives the pressing plate to return to the initial position, and at the moment, the first rotating motor and the second rotating motor operate again, so that the pressed high-dryness sludge is driven to be discharged.
The above description is only of the preferred embodiments of the present invention and it is not intended to limit the scope of the present invention, but various modifications and variations can be made by those skilled in the art. Variations, modifications, substitutions, integration and parameter changes may be made to these embodiments by conventional means or may be made to achieve the same functionality within the spirit and principles of the present invention without departing from such principles and spirit of the invention.
Claims (3)
1. The sludge continuous extrusion device with the roller is characterized by comprising a variable-pitch stepped sludge concentration device (1), a belt extrusion filter (2) and a belt plate-frame high dryness squeezer (3) with the roller;
The outlet of the variable-pitch stepped sludge concentration device (1) is positioned at the inlet of the belt extrusion filter (2);
The outlet of the belt type extrusion filter (2) is positioned at the inlet of a belt type plate frame high dryness squeezer (3) with a roller;
the belt type plate frame high dryness squeezer with the rollers (3) comprises a feeding frame assembly (4), a discharging frame (5), an extruding device with the rollers (6), an upper filter belt (7) and a lower filter belt (8);
The feeding frame assembly (4) is connected with the extrusion device (6) with a roller through an upper filter belt (7) and a lower filter belt (8);
the discharging frame (5) is connected with the extrusion device (6) with a roller through an upper filter belt (7) and a lower filter belt (8);
The extrusion device (6) with the roller comprises an extrusion outer frame (9), a main support (10), an extrusion power pump (11), a pressing plate assembly (12) and a roller extrusion assembly (13);
the main support (10) and the extrusion power pump (11) are arranged in the extrusion outer frame (9), and the pressing plate assembly (12) is arranged in the middle of the pressing plate assembly (12) by the roller extrusion assembly (13);
the extrusion power pump (11) is fixed in the main support frame (10), and a pull rod of the extrusion power pump is connected with the pressure plate assembly (12);
The variable-pitch stepped sludge concentration device (1) comprises a round table shell (14), a fourth rotating motor (15) and a screw rod (16);
The round table shell (14) is hollow, and top covers are not arranged at two ends;
the screw rod (16) is positioned in the round table shell (14);
The fourth rotating motor (15) is connected with the screw rod (16) through a transmission assembly;
A continuous thread piece (17) is arranged on the screw rod (16), and the thread pitch of the thread piece (17) is gradually reduced;
the belt type extrusion filter (2) comprises two belt type extrusion filter belts and a filter belt conveying device, wherein the filter belt conveying device comprises a third rotating motor (18) and a transmission rotating shaft, and the two belt type extrusion filter belts share part of the transmission rotating shaft;
the pressing plate assembly (12) comprises a plurality of pressing plates, and the connected pressing plates are connected through a transmission shaft (19);
the transmission shaft (19) is formed by connecting two connecting rods in a crossed way through a rotating bolt,
One end of the transmission shaft (19) is connected with the side surface of the pressing plate through a rotating bolt, and the other end of the transmission shaft (19) is connected with the side surface of the other pressing plate;
Semicircular roller gaps are respectively arranged on two sides of the bottom of the pressing plate;
The roller extrusion assembly (13) comprises an upper roller extrusion assembly and a lower roller extrusion assembly (20);
The upper roller extrusion assembly comprises a convex table extrusion piece and two upper connecting plates, the bottoms of the two upper connecting plates are rotationally connected with the convex table extrusion piece, the tops of the two upper connecting plates are rotationally connected with the tops of the adjacent pressing plates respectively, and the two upper connecting plates form a V-shaped scraping plate;
The lower roller extrusion assembly (20) comprises a roller and two lower connecting plates, wherein the tops of the two lower connecting plates are in rotary connection with the roller;
The bottom of the upper filter belt (7) passes through gaps between the pressing plates in the pressing plate assembly (12) in an S shape, and the top of the lower filter belt (8) passes through the gaps between the pressing plates in the pressing plate assembly (12) in an S shape;
An intracellular water splitting device is also arranged between the belt type extrusion filter (2) and the belt type plate frame high dryness squeezer (3) with rollers.
2. A roller sludge continuous extrusion assembly as claimed in claim 1 wherein said feed carriage assembly (4) comprises a feed carriage frame (21), a first rotary motor (22), a first rotary roller (23), a second rotary motor (24) and a second rotary roller (25);
the first rotating motor (22) is in transmission connection with the first rotating roller (23);
The second rotating motor (24) is in transmission connection with the second rotating roller (25);
The feeding frame (21) comprises an upper frame and a lower frame, the width of the upper frame is smaller than that of the lower frame, the first rotating motor (22) is located in the upper frame, and the second rotating motor (24) is located in the lower frame.
3. The sludge continuous extrusion assembly with the rollers according to claim 1, wherein the discharging frame (5) comprises an upper layer and a lower layer, the width of the upper layer frame is smaller than that of the lower layer frame, and filter belt auxiliary rollers are further arranged in the feeding frame assembly (4) and the discharging frame (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210264846.0A CN114656122B (en) | 2022-03-17 | 2022-03-17 | A sludge continuous squeezing device with rollers |
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| CN202210264846.0A CN114656122B (en) | 2022-03-17 | 2022-03-17 | A sludge continuous squeezing device with rollers |
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| CN114656122B true CN114656122B (en) | 2025-03-07 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803775A (en) * | 2012-11-09 | 2014-05-21 | 天津越清环保科技有限公司 | High dryness dewatering method and equipment for high moisture content sludge |
| CN113003913A (en) * | 2021-01-28 | 2021-06-22 | 河海大学 | Method and equipment for two-stage integrated deep dehydration of municipal sludge |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3154899B2 (en) * | 1994-08-18 | 2001-04-09 | 株式会社西原環境衛生研究所 | Sludge reforming centrifuge |
| KR101627767B1 (en) * | 2015-12-21 | 2016-06-08 | 에코이앤오(주) | Wastewater treatment system for sludge reduction |
| CN108585423B (en) * | 2018-05-17 | 2021-03-23 | 川源(中国)机械有限公司 | Belt type sludge dewatering machine capable of reducing water content of mud cakes |
| CN114105441A (en) * | 2021-12-24 | 2022-03-01 | 山东晨钟机械股份有限公司 | Industrial sludge dewatering degree of depth mummification system |
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2022
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803775A (en) * | 2012-11-09 | 2014-05-21 | 天津越清环保科技有限公司 | High dryness dewatering method and equipment for high moisture content sludge |
| CN113003913A (en) * | 2021-01-28 | 2021-06-22 | 河海大学 | Method and equipment for two-stage integrated deep dehydration of municipal sludge |
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