CN112851069B - Belt type concentration and dehydration integrated machine and working method - Google Patents

Abstract

The invention relates to the technical field of environment-friendly equipment, and particularly discloses a belt type concentration and dehydration all-in-one machine and a working method. Including vertical mixer, concentrator, hydroextractor and maintenance platform: the vertical stirrer is used for mixing the sludge and the medicament; the thickener is used for carrying out primary mud-water separation on the mixed sludge with water; the dehydrator is used for dehydrating the sludge treated by the thickener again, the sludge is dehydrated under the wrapping of a filter belt of the dehydrator, and the dehydrated sludge enters sludge discharge equipment; the maintenance platform is used for installing a thickener, a vertical stirrer and a dehydrator; an electric control system for controlling the vertical stirrer, the thickener and the dehydrator is also arranged on the maintenance platform; the equipment integrates the functions of concentration and dehydration, and the dehydration efficiency of the sludge is greatly increased by researching the technologies of flocculation concentration, gravity dehydration, wedge-shaped dehydration, high-efficiency filter pressing dehydration of S-shaped dehydration and the like.

Description

Belt type concentration and dehydration integrated machine and working method

Technical Field

The invention relates to the technical field of environment-friendly equipment, and particularly discloses a belt type concentration and dehydration all-in-one machine and a working method.

Background

With the rapid development of the Chinese social economy, environmental pollution becomes a barrier to the further development of the social economy, the life style and the life quality of people are affected by air pollution, water pollution, solid waste and other garbage pollution in many areas, and environmental protection and environmental management become common knowledge and important tasks of governments at all levels and the masses. The disposal of sewage and sludge has been a major topic of environmental protection.

The overall requirements of sludge treatment are 'reduction, resource recovery' and 'efficient dehydration' which are effective ways for achieving the purpose. Although the energy consumption of a common belt filter press is low, the water content of the dewatered sludge can only reach about 80 percent; the water content of the sludge dehydrated by the plate and frame filter press can reach 50-60%, but the sludge usually needs to be added with consolidation agents such as lime and the like, and the sludge is intermittently operated, so that the productivity is influenced, and the energy consumption of equipment is high.

Disclosure of Invention

This patent is for solving the above-mentioned technical problem that exists among the prior art, provides a novel belt type concentration dehydration all-in-one and working method that is used for fields such as municipal sludge, river course mud, industrial sludge, building mud, tailing mud, and the equipment collects concentration, dehydration function, adopts domestic leading sludge conditioning technology and unique equipment structural design, through technologies such as research flocculation concentration, gravity dehydration, wedge dehydration and the high-efficient filter-pressing dehydration of S-shaped dehydration, makes the dewatering efficiency greatly increased of mud. The equipment adopts a lightweight design and has the characteristics of small volume, low weight, low energy consumption and high efficiency.

The technical scheme adopted by the patent for solving the technical problems in the prior art is as follows:

the utility model provides a concentrated dehydration all-in-one of belt, includes vertical mixer, concentrated machine, hydroextractor and overhauls the platform: the vertical stirrer is used for mixing sludge and a medicament; the thickener is used for performing primary mud-water separation on the mixed sludge with water; the dehydrator is used for dehydrating the sludge treated by the thickener again, the sludge is dehydrated under the wrapping of a filter belt of the dehydrator, and the dehydrated sludge enters sludge discharge equipment; the maintenance platform is used for installing a thickener, a vertical stirrer and a dehydrator; an electric control system for controlling the vertical stirrer, the thickener and the dehydrator is also arranged on the maintenance platform;

the vertical stirrer comprises a motor speed reducer, a stirring mechanism, a stirrer barrel and a sewage outlet which are sequentially connected from top to bottom; the motor reducer drives the stirring mechanism to start, and stirring operation is carried out after sludge enters; the stirrer cylinder is provided with a sludge inlet and a sludge outlet; the sludge is filled in the cavity of the vertical stirrer from bottom to top through the sludge inlet and is finally discharged into the thickener through the sludge outlet; a dosing port is arranged above the sludge inlet, and a flocculation conditioner enters the cavity of the vertical stirrer through the dosing port and reacts with sludge; the drain outlet is arranged at the bottom of the mixer barrel, a valve is arranged on the drain outlet, and the valve is always in a closed state when the mixer works;

the thickener mainly comprises a first sludge inlet, a thickener filter belt, a thickener motor speed reducer, a water outlet and a sludge outlet; the first sludge inlet is arranged at one side above the concentrator frame, and flocculated and conditioned muddy water flowing out of the sludge outlet of the vertical stirrer flows into the concentrator through the first sludge inlet; one end of the thickener filter belt is positioned below the first sludge inlet, and the other end of the thickener filter belt is positioned above the sludge outlet; the thickener filter belt moves the sludge from one side of the first sludge inlet to one side of the sludge outlet under the action of the motor and the speed reducer; the water outlet is arranged at the bottom of the concentrator frame and is communicated with the lower part of the concentrator filter belt; the first sludge separating device is arranged above the thickener filter belt and is used for spreading out the thickened flocculent sludge;

the dehydrator mainly comprises a dehydrator frame; a dehydrator filter belt, a second sludge inlet, a gravity dehydration device, a dehydrator motor reducer, a sludge belt separation device, a sludge discharge port and a water discharge port are arranged on the dehydrator frame; the second sludge inlet is arranged right below the sludge outlet of the thickener; the filter belt of the dehydrator comprises a first filter belt and a second filter belt which are connected with the second sludge inlet; the concentrated sludge moves forwards along with the first filter belt through the second sludge inlet and falls onto the second filter belt; the filter belt I and the filter belt II are gradually overlapped at the inner side of the filter belt I until the two filter belts are separated at the mud belt separating device and respectively run; the sludge sequentially passes through a wedge-shaped dehydration structure, an S-shaped dehydration device and a movable counter-pressure device under the wrapping of the two filter belts; the dewatered sludge is discharged out of the dewaterer from the sludge belt separating device through a sludge discharge port;

the water outlet is arranged at the bottom of the frame of the dehydrator; the sewage generated by the non-clogging cleaning device and used for cleaning the filter belt of the dehydrator and the water generated by each part of the dehydrator are discharged out of the dehydrator through the water outlet.

Further, the thickener also comprises a first mud separating device; the first mud separating device comprises a plurality of first brackets which are connected to the inner side of the concentrator frame at equal intervals; the first support is arranged above the thickener filter belt in a hanging manner and is vertical to the running direction of the thickener filter belt; the bottom end of each first bracket is connected with a plurality of raker arms for paving sludge from one side to the other side of the thickener filter belt; the dehydrator also comprises a sludge gravity dehydration device arranged above the filter belt I, and the sludge gravity dehydration device has the same structure as the first sludge separation device.

Further, a first deviation adjusting detection device and a first deviation adjusting device are arranged on the thickener; the first deviation adjusting detection device is in signal connection with the first deviation adjusting device and the PLC system, and meanwhile, the first deviation adjusting device is in signal connection with the PLC system; the first deviation adjusting monitoring device can detect the deviation condition of the thickener filter belt in real time through position sensing arranged on the thickener filter belt, and transmits a deviation signal to the PLC, and after data processing, the PLC gives a deviation adjusting action instruction, and then the deviation adjustment of specified data is realized through the first deviation adjusting device; in the same structure, the dehydrator is provided with a second deviation adjusting detection device and a second deviation adjusting device.

Further, the first deviation adjusting device comprises a belt seat self-aligning bearing driven by a cylinder and a carrier roller carrying a filter belt of the thickener; when the filter belt of the thickener deviates and the running direction of the filter belt is not perpendicular to the carrier roller, the carrier roller can be driven by the cylinder to perform deflection adjustment at a certain angle, and the filter belt is adjusted to the central path by the oblique carrier roller.

Further, the wedge-shaped dewatering structure is a wedge-shaped opening formed when the first filter belt and the second filter belt are gradually overlapped, the wedge-shaped openings formed by the two filter belts wrap the sludge in the middle of the filter belts, the angles of the filter belts are smaller and smaller, and the sludge in the filter belts is squeezed and dewatered.

Further, the S-shaped dewatering device comprises a plurality of rollers which are arranged in an S shape, and the diameters of the rollers are sequentially reduced from large to small.

Further, the movable counter-pressure device comprises two groups of counter-pressure rollers for clamping the filter belt of the dehydrator and the sludge in the middle; the distance between the two groups of counter-pressure rollers and the filter belt is gradually reduced under the driving of the air cylinder.

Furthermore, the thickener and the dehydrator are provided with non-blocking cleaning devices opposite to the filter belt; the non-blocking cleaning device comprises a flushing pipe, wherein a high-pressure nozzle which is right opposite to the filter belt of the thickener is arranged on the flushing pipe, and the high-pressure nozzle can spray high-pressure water to clean the filter belt of the thickener.

Furthermore, the maintenance platform comprises a plurality of support frames arranged on the ground, and a horizontal thickener mounting seat, a vertical stirrer mounting seat and a walking platform are arranged on the support frames; one side of the supporting frame is provided with an inclined ladder communicated with the walking platform.

Furthermore, the working method of the belt type concentration and dehydration integrated machine comprises the following steps:

s1, pumping sludge into a dosing pipe of the concentration and dehydration integrated machine through a mud pump, and simultaneously enabling a conditioner and a flocculating agent to enter the dosing pipe through a dosing system; the sludge and the medicament are primarily mixed in the medicament feeding pipe, and the mixed liquid enters the vertical stirrer through a pipeline;

s2, fully mixing and reacting the sludge and the medicament in the vertical stirrer, overflowing the muddy water into the thickener, and preliminarily separating the flocculent sludge from water by the thickener;

s3, the sludge concentrated by the concentrator falls into a second sludge inlet of the dehydrator from the sludge discharge port; and the sludge enters sludge discharge equipment after being treated by the dehydrator.

The patent has the advantages that:

the belt type concentration and dehydration all-in-one machine integrates the vertical stirrer, the concentrator and the dehydrator on a detection platform, so that the whole structure is compact, the occupied space is small, the equipment integrates the functions of concentration and dehydration, the domestic advanced sludge conditioning process and the unique equipment structural design are adopted, and the sludge dehydration efficiency is greatly increased by researching the technologies of flocculation concentration, gravity dehydration, wedge dehydration, high-efficiency filter pressing dehydration of S-shaped dehydration and the like. The equipment adopts a lightweight design, and has the characteristics of small volume, low weight, low energy consumption, continuous dehydration process and no need of pressure maintaining intermittence. Through the continuous work of the thickener and the dehydrator, the final water content of the sludge can reach 60-70 percent, and the advanced level in China is reached, so that the working efficiency of the equipment is greatly increased; the sewage discharged from the thickener and the dehydrator enters a sewage tank for uniform treatment; the sludge treated by the concentration and dehydration integrated machine has low water content, obvious reduction and flexible treatment method, and can be used as garden cultivation soil, biochar, brick making and the like.

The device can be applied to sludge concentration and dehydration in the fields of municipal sludge, river sludge, industrial sludge, building slurry, tailing slurry and the like; through the successful implementation of this patent, can promote the further development of environmental protection industry, along with the continuous development of equipment, ripe, can cultivate for environmental protection field have domestic technological leading nature, can form a host computer product in batches, will become a new economic growth point.

Drawings

FIG. 1 is a schematic overall view of a belt thickening and dewatering integrated machine in a preferred embodiment of the present invention;

FIG. 2 is a three-dimensional view of a vertical mixer in accordance with a preferred embodiment of the present invention;

FIG. 3 is a three-dimensional view of a thickener in accordance with a preferred embodiment of the invention;

FIG. 4 is a three-dimensional view of the dehydration engine in accordance with the preferred embodiment of the present invention;

FIG. 5 is a three-dimensional view of the dewatering machine belt in the preferred embodiment of the invention;

FIG. 6 is a schematic view showing a part of the structure inside the dehydrator according to the preferred embodiment of the present invention;

FIG. 7 is a three-dimensional view of a service platform in a preferred embodiment of the invention;

fig. 8 is a schematic view of the working flow of the all-in-one machine in the preferred embodiment of the invention.

In the figure: 1. a vertical mixer; 11. a motor reducer; 12. a stirring mechanism; 13. a mixer cylinder; 14. a sewage draining outlet; 15. a sludge inlet; 16. a sludge outlet; 17. a medicine adding port; 18. a sewage draining outlet;

2. a thickener; 21. a concentrator frame; 22. a first sludge inlet; 23. a thickener filter belt tensioning mechanism; 24. a thickener filter belt; 25. a water outlet; 26. a mud separating device; 261. a first bracket; 262. raking the hands; 27. a first offset detection device; 28. a first bias adjustment device; 29. a first non-clogging cleaning device; 210. a thickener motor reducer; 211. a sludge outlet;

1. a dehydrator; 31. a dehydrator frame; 32. a dehydrator filter belt; 321. a first filter belt; 322. a second filter belt; 33. a second sludge inlet; 34. a gravity dehydration device; 35. a second tensioning mechanism; 36. a second deviation adjusting device; 37. a motor reducer of the dehydrator; 38. a mud belt separating device; 39. a sludge discharge port; 310. a movable counter-pressure device; 311. a wedge-shaped dewatering structure; 312. an S-shaped dehydration device; 313. a water discharge port;

2. overhauling the platform; 41. a support frame; 42. a thickener mounting seat; 43. a vertical mixer mounting base; 44. walking; 45. an inclined ladder.

Detailed Description

For a further understanding of the invention, its features and advantages, reference is made to the following examples, which are set forth in the accompanying drawings and the description:

referring to fig. 1 to 8, the invention discloses a belt type concentration and dehydration all-in-one machine and a working method thereof, wherein the all-in-one machine mainly comprises a vertical stirrer 1 and a concentrator 2 which are arranged on an overhaul platform 4, and a dehydrator 3 is arranged below the overhaul platform 4; the device is integrally designed by vertically arranging, and has reasonable structure and small occupied area.

As shown in fig. 2, the vertical agitator 1 comprises a motor reducer 11, an agitating mechanism 12, an agitator cylinder 13 and a sewage outlet 14 which are connected in sequence from top to bottom; the motor speed reducer 11 is matched with the stirring mechanism 12 and is arranged above the stirring cylinder 13, and the stirring mechanism 12 penetrates through the bottom of the cavity of the stirring cylinder 13 so as to stir sludge in the cavity. A sludge inlet 15 is formed in one side below the stirrer cylinder 13, and a sludge outlet 16 is formed in one side above the stirrer cylinder; sludge fills the cavity of the vertical stirrer 1 from bottom to top through the sludge inlet 15 and is finally discharged out of the vertical stirrer 1 through the sludge outlet 16; a dosing port 17 is arranged above the sludge inlet 15, and the high-efficiency flocculation conditioner enters the cavity of the vertical stirrer 1 through the dosing port 17 and reacts with sludge; the size of mixer barrel 13 is designed according to the reaction time of high-efficient flocculation conditioner, guarantees that high-efficient flocculation conditioner can have abundant reaction time with mud, improves the flocculation effect. The sewage draining exit 14 is arranged at the bottom of the mixer barrel 13, a valve is arranged on the sewage draining exit 14, and the valve is always in a closed state when the mixer works. Before the sludge enters the vertical agitator 1, the motor reducer 11 drives the agitating mechanism 12 to start, and the agitation operation is carried out after the sludge enters. Preferably, the motor reducer 11 is a variable frequency motor for variable frequency speed regulation, so that the stirring mechanism 12 can adjust the stirring speed according to different working conditions to achieve the best flocculation effect.

As shown in fig. 3, the thickener 2 mainly includes a thickener frame 21, and the thickener frame 21 is provided with a first sludge inlet 22, a thickener belt tensioning mechanism 23, a thickener belt 24, a water outlet 25, a sludge separating device 26, a first deviation detecting device 27, a first deviation detecting device 28, a first non-clogging cleaning device 29, a thickener motor reducer 210, and a sludge outlet 211.

The first sludge inlet 22 is arranged at one side above the concentrator frame 21, and the flocculated and conditioned muddy water flowing out of the sludge outlet 16 of the vertical stirrer 1 flows into the concentrator 2 through the first sludge inlet 22; the sludge outlet 211 is arranged at one side below the concentrator frame 21 and is opposite to the first sludge inlet 22; the thickener filter belt 24 is arranged on the inner side of the thickener frame 21, one end of the thickener filter belt 24 is positioned below the first sludge inlet 22, and the other end is positioned above the sludge outlet 211. The thickener filter belt tensioning mechanism 23 extends inwards from the outer side of the thickener frame 21 and is connected with the thickener filter belt 24, and before the thickener 2 works, the thickener filter belt tensioning mechanism 23 is started to tension the thickener filter belt 24; the first motor and the thickener motor reducer 210 are arranged outside the thickener frame 21, the inner sides of two ends of the thickener filter belt 24 are respectively provided with a rubber roll, and the first motor is coaxially connected with one of the rubber rolls so as to drive the thickener filter belt 24 to move and move sludge from one side of the first sludge inlet 22 to one side of the sludge outlet 211; the thickener motor reducer 210 is a variable frequency motor, and the rotating speed of the motor can be adjusted through a frequency converter according to the real-time treatment capacity of the sludge, so that the running speed of the thickener filter belt 24 is adjusted, and the thickening effect is optimized. The water outlet 25 is arranged at the bottom of the concentrator frame 21 and is communicated with the lower part of the concentrator filter belt 24; the mud separating device 26 is arranged above the thickener filter belt 24 on the side of the mud outlet 211;

specifically, the mud separating device 26 comprises a plurality of first brackets 261 which are connected to the inner side of the concentrator frame 21 at equal intervals; the first support 261 is suspended above the thickener filter belt 24 and is vertical to the running direction of the thickener filter belt 24; a plurality of raker arms 262 are connected to the bottom end of each first support 261 from one side to the other side of the thickener filter belt 24, each raker arm 262 comprises a V-shaped groove, and a V-shaped thickness adjusting device for paving sludge is arranged at the bottom of each V-shaped groove; the V-shaped thickening device is made of rubber, a certain gap exists between the V-shaped thickening device and the thickener filter belt 24, and the gap can be adjusted according to the amount of flocculent sludge on the thickener filter belt 24, so that the sludge is flatly laid on the thickener filter belt 24 as much as possible; when the rake 262 contacts with the sludge, the concentrated water is further separated below the thickener filter belt 24, the concentrated water filtered by the thickener filter belt 24 is discharged through the water outlet 25, the concentrated flocculent sludge is fully spread by the sludge separating device 26 and further subjected to gravity dehydration, and the concentrated sludge is finally discharged out of the thickener 2 through the sludge outlet 211.

Preferably, the thickener belt 24 may be of two types, namely a plain nylon mesh thickener belt 24 and a flocked thickener belt 24. When the common nylon net thickener filter belt 24 is selected, the mesh size of the thickener filter belt 24 is selected according to the components of the on-site sludge so as to achieve the best water filtering effect. Engineering practice proves that the water content of the concentrated sludge can be about 93% by selecting the filter belt 24 of the common nylon net concentrator. When the filter belt 24 of the flocking thickener is selected, because the pore space is several times larger than that of the filter belt 24 of the conventional thickener, the filter belt can filter water more quickly and is easy to clean; due to the fact that the surface of the thickener filter belt 24 is provided with directional hair planting, sludge loss can be effectively prevented. Because the selection of planting hair thickener filter belt 24 for use for the concentrated regional length of gravity of thickener 2 reduces, makes the structure of equipment simpler, and it is easier to maintain, cost greatly reduced. Engineering practice proves that the water content of the concentrated sludge can be about 90% by selecting the filter belt 24 of the flocking concentrator.

Preferably, the thickener filter belt 24 is arranged obliquely upwards along the moving direction, and the thickener filter belt 24 is arranged at an angle of 3-10 degrees with the horizontal direction; experiments prove that the angle greatly increases the treatment capacity of the thickener 2, and further increases the treatment capacity of the whole concentration and dehydration integrated machine.

The first deviation adjusting detection device 27 is respectively in signal connection with the first deviation adjusting device 28 and the PLC system, and meanwhile, the first deviation adjusting device 28 is in signal connection with the PLC system; the deviation adjusting monitoring device can detect the deviation condition of the thickener filter belt 24 in real time through a position sensor arranged on the thickener filter belt 24, transmits a deviation signal to the PLC, and after data processing, the PLC gives a deviation adjusting action instruction and then realizes the deviation adjustment of specified data through the first deviation adjusting device 28. The deviation adjusting device comprises a self-aligning bearing with a seat driven by a cylinder and a carrier roller carrying a filter belt 24 of the thickener; when the filter belt 24 of the thickener deviates, the running direction of the filter belt is not perpendicular to the carrier roller, at the moment, the carrier roller can be driven by the air cylinder to perform deflection adjustment at a certain angle, and the filter belt is adjusted to be on a central path by the oblique carrier roller. This configuration can greatly reduce the filter cloth deflection, improve the stability of the operation of the thickener 2, and thus improve the productivity of the thickener 2.

During operation of the thickener 2, the pores of the thickener filter belt 24 may become clogged with sludge as the operating time increases. This patent uses the first non-clogging cleaning device 29 to solve this problem. The device comprises a flushing pipe, wherein a high-pressure spray head which is right opposite to the filter belt 24 of the thickener is arranged on the flushing pipe, and high-pressure water can be sprayed out to clean the filter belt 24 of the thickener; and the first non-clogging cleaning device 29 further comprises a hand wheel and a cleaning part connected with the center of the hand wheel, the cleaning part is a bar-shaped shaft which is arranged in the flushing pipe and is fully distributed with bristles on the outer side, when the high-pressure spray head is blocked, the hand wheel can be shaken under the condition that the thickener 2 is not stopped to enable the cleaning part to clean and dredge the high-pressure spray head, and the self-cleaning function of the flushing pipe of the device greatly increases the production efficiency of the thickener 2.

As shown in fig. 4 to 6, the dehydration engine 3 mainly includes a dehydration engine frame 31; the dehydrator frame 31 is provided with a dehydrator filter belt 32, a second sludge inlet 33, a gravity dehydration device 34, a second tensioning mechanism 35, a second deviation adjusting monitoring device, a second deviation adjusting device 36, a dehydrator motor reducer 37, a sludge belt separating device 38, a sludge discharge port 39, a movable counter-pressure device 310, a wedge-shaped dehydration structure 311, an S-shaped dehydration device 312, a water discharge port 313 and a second non-blocking cleaning device.

The second sludge inlet 33 is arranged right below the sludge outlet 211 of the thickener 2; the filter belt 32 of the dehydrator comprises a first filter belt 321 and a second filter belt 322 which are connected with the second sludge inlet 33; the concentrated sludge moves forwards along with the first filter belt 321 through the second sludge inlet 33 and falls onto the second filter belt 322; on the inner side of the first filter belt 321, the first filter belt 321 and the second filter belt 322 are gradually overlapped until the two filter belts are separated and run respectively at the mud belt separating device 38; the sludge passes through a wedge-shaped dehydration structure 311, an S-shaped dehydration device 312 and a movable counter-pressure device 310 in sequence under the wrapping of the two filter belts; the dewatered sludge is discharged from the sludge belt separating device 38 out of the dewatering machine 3 through the sludge discharge port 39, and the whole process of sludge dewatering is finished.

Specifically, the wedge-shaped dewatering structure 311 is a wedge-shaped opening formed when the first filter belt 321 and the second filter belt 322 are gradually overlapped, the sludge is wrapped in the middle of the filter belts by the wedge-shaped openings formed by the two filter belts, and the sludge in the filter belts is squeezed due to the fact that the angles of the filter belts are smaller and smaller, so that the sludge squeezing dewatering effect is achieved; the S-shaped dewatering device 312 comprises a plurality of rollers arranged in an S shape, and the diameters of the rollers are arranged from large to small in sequence along the moving direction of the filter belt of the dewatering machine to form a stronger and stronger pressure gradient; when the sludge wrapped by the first filter belt 321 and the second filter belt 322 passes through the S-shaped dehydration device 312, the extrusion force applied to the filter belts wrapping the sludge is gradually increased in a gradient manner, and the moisture in the sludge can be further extruded to the maximum extent. The two filter belts passing through the S-shaped dewatering device 312 carry the sludge to enter the movable counter-pressing device 310, and the movable counter-pressing device 310 comprises two groups of counter-pressing rollers for clamping the filter belts and the sludge; the distance between the two groups of counter-pressure rollers and the filter belt is gradually reduced under the driving of the cylinder, so that the moisture in the sludge is further extruded; the movable counter-pressure device 310 is provided at the rear end of the sludge treatment in order to reduce the water content in the sludge as much as possible.

Preferably, the second tensioning device is coupled to the extractor filter belt 32 to tension the extractor filter belt 32 during operation. The dehydrator motor reducer 37 is arranged on the outer side of the dehydrator frame 31, and the dehydrator filter belt 32 is provided with a driving rubber roll connected with the dehydrator motor reducer 37, so that the first filter belt 321 and the second filter belt 322 are driven to synchronously rotate;

the sludge gravity dewatering device 34 comprises a plurality of second brackets which are connected to the inner side of the top of the dewatering machine frame 31 at equal intervals; the second support is arranged above the first filter belt 321 in a hanging manner and is vertical to the running direction of the first filter belt 321; a plurality of raker arms 262 are connected to the bottom of each second support at equal intervals, and the raker arms 262 are identical in structure to the raker arms 262 carried on the thickener 2, and are not described herein again. After the sludge enters the dehydrator 3 from the second sludge inlet 33, the sludge is spread on the first filter belt 321 by the raker 262 as much as possible, so that the gravity dehydration effect is greatly increased.

The second deviation adjusting detection device is respectively in signal connection with the second deviation adjusting device 36 and the PLC system, and meanwhile, the second deviation adjusting device 36 is in signal connection with the PLC system; the second deviation-adjusting monitoring device can detect the deviation condition of the dehydrator filtering belt 32 in real time through a position sensor arranged on the dehydrator filtering belt 32, transmit a deviation signal to the PLC, and after data processing, the PLC gives a deviation-adjusting action instruction and then realizes the deviation adjustment of specified data through the second deviation-adjusting device 36. The second deviation-adjusting device 36 has the same structure and principle as the first deviation-adjusting device 28, and will not be described in detail herein. The form can greatly reduce the filter cloth deviation, improve the running stability of the dehydrator 3 and further improve the sludge dehydration efficiency.

During the operation of the dewatering machine 3, the pores of the filter belt may be clogged with the sludge as the operation time is prolonged. In order to solve the problem, the second non-blocking cleaning device cleans the filter belt by using high-pressure water sprayed by the high-pressure spray head, has a flushing pipe self-cleaning function, can dredge the high-pressure spray head without stopping the machine, and greatly increases the production efficiency of the dehydrator 3. The second non-clogging cleaning device has the same structure as the first non-clogging cleaning device 29, and will not be described herein.

The outlet 313 is arranged at the bottom of the frame 31 of the dehydrator, and in the production process, the sewage generated by the non-blocking cleaning device and used for cleaning the filter belt 32 of the dehydrator and the water generated by each part of the dehydrator 3 pass through the outlet 313 to be discharged out of the dehydrator 3.

As shown in fig. 7, the maintenance platform 4 includes a plurality of high-strength support frames 41 disposed on the ground, and the support frames 41 are provided with a horizontal thickener mounting seat 42, a vertical mixer 1 mounting seat, and a walking board 44; the thickener attachment seat 42 is designed according to the position of the foot of the thickener 2, and the thickener 2 can be stably attached to the designed position. The mounting base of the vertical mixer 1 is designed according to the position of the bottom foot of the vertical mixer 1, and the vertical mixer 1 can be stably mounted at the designed position. The dehydrator 3 is arranged below the support frame 41 due to complex structure and various components; the walking platform 44 is formed by welding channel steel frames, and the top of the walking platform is made of glass fiber reinforced plastics or steel grating plates, so that the bearing strength of the walking platform is ensured, the weight of the whole maintenance platform 4 is greatly reduced, and the cost is reduced. One side of the supporting frame 41 is provided with an inclined ladder 45 communicated with the walking platform 44; in operation, maintainers and equipment enter the two-layer maintenance platform 4 through the inclined ladder 45, and the design of the inclined ladder 45 accords with ergonomics, so that the safety is ensured and the comfort of operators is also taken into consideration. And the maintenance platform 4 is also provided with an electric control system for controlling the vertical stirrer 1, the thickener 2 and the dehydrator 3.

As shown in fig. 8, the working method of the concentration and dehydration all-in-one machine in this patent includes the following steps:

s1, pumping sludge into a dosing pipe of the concentration and dehydration integrated machine through a mud pump, and simultaneously enabling a conditioner and a flocculating agent to enter the dosing pipe through a dosing system; the sludge and the medicament are primarily mixed in the medicament feeding pipe, and the mixed liquid enters the vertical stirrer 1 through a pipeline;

s2, sufficiently mixing and reacting the sludge and the medicament in the vertical stirrer 1, overflowing the sludge water into the thickener 2 after the best effect is achieved, and preliminarily separating the flocculent sludge from the water by using a common nylon net filter belt or a flocking filter belt through the thickener 2; tests prove that through the operation of the thickener 2, the common nylon mesh filter belt can concentrate the sludge with the water content of 97 percent to about 93 percent, the hair planting filter belt can concentrate the sludge with the water content of 97 percent to about 90 percent, and the belt thickener 2 can stably and reliably operate, thereby greatly increasing the working efficiency of equipment;

s3, the sludge concentrated by the concentrator 2 falls into a second sludge inlet 33 of the dehydrator 3 below the sludge outlet 39; the sludge enters sludge discharge equipment after being treated by the multiple squeezing process of the dehydrator 3, and the final sludge moisture content can reach 60-70 percent and reach the domestic advanced level; in the working process, cleaning water with pressure greater than 0.5Mpa from a clean water tank is used by non-clogging flushing devices carried on the thickener 2 and the dehydrator 3 to efficiently clean the filter belt, so that continuous and effective operation of equipment is ensured; the sewage discharged from the thickener 2 and the dehydrator 3 enters a sewage pool for uniform treatment; the sludge treated by the concentration and dehydration integrated machine has low water content, remarkable reduction and flexible treatment method, and can be used as garden cultivating soil, biochar, brick making and the like.

The foregoing is illustrative of the preferred embodiments of this patent and is not to be construed as limiting in any way, and all simple modifications, equivalent alterations and modifications to the above embodiments based on the technical spirit of this patent are intended to be included within the scope of the present patent disclosure.

Claims (3)

1. The utility model provides a concentrated dehydration all-in-one of belt, its characterized in that, includes vertical mixer, concentrator, hydroextractor and overhauls the platform: the vertical stirrer is used for mixing sludge and a medicament; the thickener is used for performing primary mud-water separation on the mixed sludge with water; the dehydrator is used for dehydrating the sludge treated by the thickener again, the sludge is dehydrated under the wrapping of a filter belt of the dehydrator, and the dehydrated sludge enters sludge discharge equipment; the maintenance platform is used for installing a thickener, a vertical stirrer and a dehydrator; an electric control system for controlling the vertical stirrer, the thickener and the dehydrator is also arranged on the maintenance platform;

the vertical stirrer comprises a motor speed reducer, a stirring mechanism, a stirrer barrel and a sewage outlet which are sequentially connected from top to bottom; the motor reducer drives the stirring mechanism to start, and stirring operation is carried out after sludge enters; the stirrer cylinder is provided with a sludge inlet and a sludge outlet; sludge is filled in the cavity of the vertical stirrer from bottom to top through the sludge inlet and is finally discharged into the thickener through the sludge outlet; a dosing port is arranged above the sludge inlet, and a flocculation conditioner enters the cavity of the vertical stirrer through the dosing port and reacts with sludge; the drain outlet is arranged at the bottom of the mixer barrel, a valve is arranged on the drain outlet, and the valve is always in a closed state when the mixer works;

the thickener mainly comprises a first sludge inlet, a thickener filter belt, a thickener motor speed reducer, a water outlet and a sludge outlet; the first sludge inlet is arranged at one side above the concentrator frame, and flocculated and conditioned muddy water flowing out of the sludge outlet of the vertical stirrer flows into the concentrator through the first sludge inlet; one end of the thickener filter belt is positioned below the first sludge inlet, and the other end of the thickener filter belt is positioned above the sludge outlet; the thickener filter belt moves the sludge from one side of the first sludge inlet to one side of the sludge outlet under the action of a motor and a speed reducer, and the thickener filter belt 24 is arranged at an angle of 3-10 degrees with the horizontal direction; the directional hair planting on the surface of the thickener filter belt can effectively prevent sludge loss; the water outlet is arranged at the bottom of the concentrator frame and is communicated with the lower part of the concentrator filter belt; the first sludge separating device is arranged above the filter belt of the thickener and is used for spreading the thickened flocculent sludge out of the dehydrator, and the dehydrator mainly comprises a dehydrator frame; a dehydrator filter belt, a second sludge inlet, a gravity dehydration device, a dehydrator motor reducer, a sludge belt separation device, a sludge discharge port and a water discharge port are arranged on the dehydrator frame; the second sludge inlet is arranged right below the sludge outlet of the thickener; the filter belt of the dehydrator comprises a first filter belt and a second filter belt which are connected with the second sludge inlet; the concentrated sludge moves forwards along with the first filter belt through the second sludge inlet and falls onto the second filter belt; on the inner side of the first filter belt, the first filter belt and the second filter belt are gradually superposed until the two filter belts are separated at the mud belt separating device and respectively run; the sludge sequentially passes through a wedge-shaped dehydration structure, an S-shaped dehydration device and a movable counter-pressure device under the wrapping of the two filter belts; the dewatered sludge is discharged out of the dewaterer from the sludge belt separating device through a sludge discharge port; the directional hair planting on the surface of the filter belt can effectively prevent the sludge loss;

the water outlet is arranged at the bottom of the frame of the dehydrator; the sewage generated by the non-clogging cleaning device and used for cleaning the filter belt of the dehydrator and the water generated by each part of the dehydrator are discharged out of the dehydrator through the water outlet;

the thickener also comprises a first mud separating device; the first mud separating device comprises a plurality of first brackets which are connected to the inner side of the concentrator frame at equal intervals; the first support is arranged above the thickener filter belt in a hanging manner and is vertical to the running direction of the thickener filter belt; the bottom end of each first bracket is connected with a plurality of raker arms for paving sludge from one side to the other side of the thickener filter belt; the harrow hand comprises a V-shaped groove, and the bottom of the V-shaped groove is provided with a V-shaped thickness adjusting device for paving sludge; the V-shaped thickness adjusting device is made of rubber, a certain gap exists between the V-shaped thickness adjusting device and the thickener filter belt, and the gap can be adjusted according to the amount of flocculent sludge on the thickener filter belt, so that the sludge is spread on the thickener filter belt as far as possible; the dehydrator also comprises a sludge gravity dehydration device arranged above the first filter belt, and the sludge gravity dehydration device has the same structure as the first sludge separation device;

the wedge-shaped dewatering structure is a wedge-shaped opening formed when the first filter belt and the second filter belt are gradually overlapped, and the wedge-shaped openings formed by the two filter belts wrap the sludge in the middle of the filter belts; the angles of the two filter belts are reduced to be parallel in the moving process, and sludge in the two filter belts is squeezed and dewatered;

the S-shaped dehydration device comprises a plurality of rollers which are arranged in an S shape, and the diameters of the rollers are arranged from large to small in sequence along the moving direction of the filter belt of the dehydrator;

the movable counter-pressure device comprises two groups of counter-pressure rollers for clamping the filter belt of the dehydrator and the sludge in the middle; the distance between the two groups of counter-pressure rollers and the filter belt is gradually reduced under the driving of the cylinder;

the concentrator is provided with a first deviation adjusting detection device and a first deviation adjusting device; the first deviation adjusting detection device is in signal connection with the first deviation adjusting device and the PLC system, and meanwhile, the first deviation adjusting device is in signal connection with the PLC system; the first deviation adjusting monitoring device can detect the deviation condition of the thickener filter belt in real time through position sensing arranged on the thickener filter belt and transmits a deviation signal to the PLC; after data processing, the PLC gives an offset adjustment action instruction, and then the offset adjustment of the designated data is realized through the first offset adjustment device; in the same structure, a second deviation adjusting detection device and a second deviation adjusting device are arranged on the dehydrator;

the first deviation adjusting device comprises a belt seat self-aligning bearing driven by a cylinder and a carrier roller carrying a filter belt of the thickener; when the filter belt of the thickener deviates and the running direction of the filter belt of the thickener is not vertical to the carrier roller, the carrier roller can be driven by the cylinder to perform deflection adjustment at a certain angle, and the filter belt is adjusted to the central path by the oblique carrier roller.

2. The belt concentrator/dehydrator module as in claim 1, wherein: the thickener and the dehydrator are respectively provided with a non-blocking cleaning device which is opposite to the filter belt; the non-blocking cleaning device comprises a flushing pipe, wherein a high-pressure nozzle which is right opposite to the filter belt of the thickener is arranged on the flushing pipe, and the high-pressure nozzle can spray high-pressure water to clean the filter belt of the thickener.

3. The belt thickening and dewatering integrated machine of claim 1, wherein: the maintenance platform comprises a plurality of support frames arranged on the ground, and a horizontal thickener mounting seat, a vertical stirrer mounting seat and a walking platform are arranged on the support frames; one side of the supporting frame is provided with an inclined ladder communicated with the walking platform.

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