CN210261510U

CN210261510U - Sewage and sludge dewatering equipment

Info

Publication number: CN210261510U
Application number: CN201920806154.8U
Authority: CN
Inventors: 俞德清
Original assignee: Ruimei Intelligent Equipment Jiangsu Co Ltd
Current assignee: Ruimei Intelligent Equipment Jiangsu Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-07
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a sewage silt dewatering equipment adjusts the thickness of mud through multiple mode, and is concrete, through leading mud and looping through the counter weight play mud board, coulter formula harrow mud device, mud scraper and flexible mud laying plate, regulates and control the sludge amount that gets into the gradient dehydration subassembly, avoids the gradient dehydration subassembly to receive too big pressure and leads to mud to spill over from both ends. The dewatering rolls and the two sections of filter belts are combined to form a gradient dewatering assembly, the gradient dewatering assembly bypasses the inside of the frame in an S shape, the gradient dewatering assembly can dewater sludge layer by layer, most of moisture is guaranteed to be separated from the area, and the phenomenon that sludge runs out of the two ends of the filter belts under the condition of large pressure is avoided. Meanwhile, the air bag pressure fine adjustment deviation rectifying system is adopted, online deviation rectifying of the filter belt in the using process is guaranteed, the phenomenon of large-amplitude deviation rectifying is avoided, and the phenomenon that the filter belt is distorted and folded due to large-amplitude deviation rectifying is avoided.

Description

Sewage and sludge dewatering equipment

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to sewage silt dewatering equipment.

Background

The sludge generated by sewage treatment has higher water content, and the organic matter content and the ash content in the sludge, particularly the addition amount of a flocculating agent, have important influence on the final solid content. The mud cake obtained after treatment contains rich nutrient elements such as nitrogen, phosphorus and potassium, and is extremely favorable for recycling resources if the treatment is proper.

In the prior art, when the pressure applied to equipment for treating sludge in sewage is too large, water is very easy to be filtered from two sides of a filter belt too soon, so that the sludge leakage at two ends of the filter belt is caused.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model provides a sewage silt dewatering equipment adjusts the thickness of mud through multiple mode to design gradient dehydration subassembly, successive layer dehydration has solved the above-mentioned problem that prior art exists.

The technical scheme is as follows: a sewage and sludge dewatering device comprises a foundation assembly, a sludge pretreatment assembly, a gradient dewatering assembly and a deviation rectifying assembly.

The basic assembly comprises a rack, a side plate fixed on the periphery of the rack and a mud inlet plate which is fixed on the rack and has the same length and width with the rack;

the sludge pretreatment assembly comprises a sludge inlet hopper, a counterweight sludge outlet plate, a plurality of coulter type sludge raking devices, a sludge scraping plate and a flexible sludge paving plate, wherein the sludge inlet hopper is fixed on the rack and is communicated with one end of the sludge inlet plate;

the gradient dewatering assembly comprises a plurality of dewatering rollers rotatably arranged in the rack, a driving roller rotatably arranged on one side of the rack, a driven roller rotatably arranged on the lower part of the driving roller, and a plurality of compression rollers rotatably arranged at preset positions outside the rack; the diameter of the dewatering roller is gradually reduced from the counterweight mud outlet plate to the mud inlet hopper; the driving roller and the driven roller are in meshing transmission through a group of synchronous gears; the gradient dehydration component is driven by two sections of filter belts which are partially overlapped;

the deviation rectifying assembly comprises a plurality of air bag fine-tuning deviation rectifying devices fixed at preset positions inside the rack.

In a further embodiment, the air bag fine adjustment deviation correcting device comprises a deviation correcting box, a deviation correcting roller which is movably arranged in the deviation correcting box and can deflect at a preset angle, and at least two tensioning air bags which are arranged between the deviation correcting box and the deviation correcting roller. The air bag pressure fine adjustment deviation rectifying system is adopted, online deviation rectifying of the filter belt in the using process is guaranteed, the phenomenon of large-amplitude deviation rectifying is avoided, and the phenomenon that the filter belt is distorted and folded due to large-amplitude deviation rectifying is avoided.

In a further embodiment, the tensioning airbags are respectively installed at the head end and the tail end of the deviation rectifying roller and are positioned at the two sides of the deviation rectifying roller in the axial direction, and the tensioning airbags are attached to the deviation rectifying box and the deviation rectifying roller by preset pressing force. Whether the deviation occurs or not can be sensed in real time through photoelectric sensors which are arranged in the frame and are positioned at the two ends of the deviation correcting roller, and the tensioning air bags at the two ends of the deviation correcting roller are respectively controlled to finely adjust the deviation.

In a further embodiment, the coulter-type mud raking device is formed by arranging a plurality of coulters in a preset number of rows and columns to form a plurality of groups, and one row of coulters forms a group of coulter-type mud raking device. The coulter type mud raking device is used in the field of gravity dehydration, and mud at the lower part is turned up and down while being turned to two sides, so that the dehydration effect of a filter belt is ensured.

In a further embodiment, each group of coulter type mud raking device comprises fixed seats symmetrically arranged at two sides of the mud feeding plate and coulters rotatably arranged on the fixed seats; the two mutually symmetrical fixing seats are rotatably connected with a rotating shaft through a bearing seat and a bearing, and the coulter is uniformly fixed on the rotating shaft at a preset distance. The method is used for further flocculation reaction of the mud which is not uniform and can not completely react.

In a further embodiment, the power of each group of coulter type mud raking devices is synchronous; chain wheels are fixed at two ends of each rotating shaft, the chain wheels are connected through chains, and an adjusting handle is welded on the rotating shaft close to one side of the mud feeding hopper. The adjusting handle is used for adjusting the inclination angle of the coulter type mud raking device and can pull all coulters to work together.

In a further embodiment, the mud scraper is made of a 304 stainless steel plate, and the cross section of the mud scraper is in a preset arc shape; the filter belt is wound on the driving roller, the driven roller, the dewatering roller and the compression roller; the two sections of filter belts are overlapped and pressed on the dewatering roll and are S-shaped and roundabout in the frame, and the two sections of filter belts are separated between the driving roll and the driven roll. The S-shaped pressing area is formed by the S-shaped roundabout filter belt and the dewatering roll, so that most of water can be separated in the area, and the phenomenon that mud runs from two ends of the filter belt under the condition of large pressure is avoided.

In a further embodiment, the sewage sludge dewatering device further comprises a driving assembly, wherein the driving assembly comprises a speed reducing motor, and an output shaft of the speed reducing motor is connected with the synchronous gear through a coupler and used for ensuring synchronous operation of the two belts.

In a further embodiment, the flexible mud laying plate is arc-shaped in cross section, and the arc-shaped edge is matched with the circumference of the dewatering roll below the flexible mud laying plate. The flexible mud paving plate with the arc-shaped edge is used for avoiding the phenomena that the mud feeding amount is unstable in the process of filtering and dewatering the mud belts and the cloth is not uniform when the mud raking process enters between the two filter belts, and avoiding the phenomena that the filter belts are locally extended and deflected in the use process.

Has the advantages that: the utility model relates to a sewage silt dewatering equipment adjusts the thickness of mud through multiple mode, and is concrete, through leading mud and looping through the counter weight play mud board, coulter formula harrow mud device, mud scraper and flexible mud laying plate, regulates and control the sludge amount that gets into the gradient dehydration subassembly, avoids the gradient dehydration subassembly to receive too big pressure and leads to mud to spill over from both ends. The dewatering rolls and the two sections of filter belts are combined to form a gradient dewatering assembly, the gradient dewatering assembly bypasses the inside of the frame in an S shape, the gradient dewatering assembly can dewater sludge layer by layer, most of moisture is guaranteed to be separated from the area, and the phenomenon that sludge runs out of the two ends of the filter belts under the condition of large pressure is avoided. Meanwhile, the air bag pressure fine adjustment deviation rectifying system is adopted, online deviation rectifying of the filter belt in the using process is guaranteed, the phenomenon of large-amplitude deviation rectifying is avoided, and the phenomenon that the filter belt is distorted and folded due to large-amplitude deviation rectifying is avoided.

Drawings

Fig. 1 is a schematic view of the sectioning of the utility model.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic structural diagram of the middle gradient dewatering component of the present invention.

The figures are numbered: the device comprises a mud feeding hopper 1, a balance weight mud discharging plate 2, a coulter type mud raking device 3, a mud scraping plate 4, a flexible mud paving plate 5, a press roller 6, a dewatering roller 7, a tensioning air bag 8, a rack 9, a water tank 10, a deviation rectifying box 11, a high-pressure washing device 12, a filter belt 13, a driven roller 14, a deviation rectifying roller 15, a speed reducing motor 16, a mud feeding plate 17 and a driving roller 18.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 3, the utility model discloses a sewage sludge dewatering equipment, including frame 9, curb plate, advance mud board 17, advance mud bucket 1, counter weight play mud board 2, coulter formula harrow mud device 3, mud scraper 4, flexible mud board 5, dehydration roller 7, drive roll 18, driven voller 14, compression roller 6, filtering belt 13, gasbag fine setting deviation correcting device. The side plates are fixed on the periphery of the rack 9, the mud inlet plate 17 is fixed on the rack 9, and the length and the width of the mud inlet plate 17 are consistent with those of the rack 9. The mud feeding hopper 1 is fixed on the frame 9, and the mud feeding hopper 1 is communicated with one end of the mud feeding plate 17; the counterweight mud discharging plate 2 is rotatably arranged on the mud feeding plate 17, and the counterweight mud discharging plate 2 is positioned on one side of the mud feeding hopper 1; the coulter type mud raking device 3 is rotationally arranged on the mud inlet plate 17, and the coulter type mud raking device 3 is positioned on one side of the counterweight mud outlet plate 2; the mud scraping plate 4 is movably arranged on one side of the coulter type mud raking device 3, and the flexible mud paving plate 5 is rotatably arranged on one side of the mud scraping plate 4. The dewatering roll 7 is rotatably arranged in the frame 9, the driving roll 18 is rotatably arranged on one side of the frame 9, the driven roll 14 is rotatably arranged on the lower part of the driving roll 18, the press roll 6 is rotatably arranged at a preset position on the outer side of the frame 9, and the diameters of the dewatering roll 7 are sequentially reduced from the counterweight mud outlet plate 2 to the mud inlet hopper 1; the driving roller 18 and the driven roller 14 are in meshing transmission through a group of synchronous gears; the gradient dewatering assembly is driven by two sections of partly overlapping filter belts 13. The air bag fine adjustment deviation correcting device is fixed at a preset position inside the rack 9. The frame 9, the side plates and the mud inlet plate 17 form a basic assembly of the utility model; the sludge inlet hopper 1, the counterweight sludge outlet plate 2, the coulter type sludge raking device 3, the sludge scraping plate 4 and the flexible sludge paving plate 5 form a sludge pretreatment assembly of the utility model; the dewatering roll 7, the driving roll 18, the driven roll 14, the compression roll 6 and the filter belt 13 form the gradient dewatering component of the utility model; gasbag fine setting deviation correcting device constitutes the utility model discloses a subassembly of rectifying.

More specifically, the air bag fine adjustment deviation correcting device comprises a deviation correcting box 11, a deviation correcting roller 15 and a tensioning air bag 8. The deviation rectifying roller 15 is movably arranged on the deviation rectifying box 11, the deviation rectifying roller 15 can deflect at a preset angle along the axis of the deviation rectifying roller 15, and the tensioning air bag 8 is arranged between the deviation rectifying box 11 and the deviation rectifying roller 15. The air bag pressure fine adjustment deviation rectifying system is adopted, online deviation rectifying of the filter belt 13 in the using process is guaranteed, the phenomenon of large-amplitude deviation rectifying is avoided, and the phenomenon that the filter belt 13 is distorted and folded due to large-amplitude deviation rectifying is avoided. The tension airbags 8 are respectively installed at the head end and the tail end of the deviation rectifying roller 15 and located at the two sides of the axis direction of the deviation rectifying roller, and the tension airbags 8 are attached to the deviation rectifying box 11 and the deviation rectifying roller 15 through preset pressing force. Whether deviation occurs or not can be sensed in real time through photoelectric sensors which are arranged in the frame 9 and are positioned at the two ends of the deviation rectifying roller 15, and the tensioning airbags 8 positioned at the two ends of the deviation rectifying roller 15 are respectively controlled to conduct fine adjustment and correction. The coulter-type mud raking device 3 is formed by arranging a plurality of coulters in a preset row number and a preset column number to form a plurality of groups, and one column of coulters forms a group of coulter-type mud raking device 3. The coulter-type mud raking device 3 is used in the field of gravity dehydration, and ensures that mud at the lower part is turned up and down while being turned to two sides, thereby ensuring the dehydration effect of the filter belt 13. Each group of coulter type mud raking devices 3 comprises fixed seats symmetrically arranged at two sides of the mud feeding plate 17 and coulters rotatably arranged on the fixed seats; the two mutually symmetrical fixing seats are rotatably connected with a rotating shaft through a bearing seat and a bearing, and the coulter is uniformly fixed on the rotating shaft at a preset distance. The method is used for further flocculation reaction of the mud which is not uniform and can not completely react. The power of each group of coulter type mud raking devices 3 is synchronous; chain wheels are fixed at two ends of each rotating shaft, the chain wheels are connected through chains, and an adjusting handle is welded on the rotating shaft close to one side of the mud feeding hopper 1. The adjusting handle is used for adjusting the inclination angle of the coulter type mud raking device 3 and can pull all coulters to work together. The mud scraping plate 4 is made of a 304 stainless steel plate, and the section of the mud scraping plate 4 is in a preset arc shape; the filter belt 13 is wound on the driving roller 18, the driven roller 14, the dewatering roller 7 and the press roller 6; two sections of filter belts 13 are overlapped and pressed on the dewatering roll 7 and are S-shaped and circuitous in the frame 9, and the two sections of filter belts 13 are separated between a driving roll 18 and a driven roll 14. The S-shaped roundabout filter belt 13 and the dewatering roll 7 form an S-shaped pressing area, so that most of water can be ensured to be separated in the area, and the phenomenon that mud runs from two ends of the filter belt 13 under the condition of large pressure is avoided. A water tank 10 is arranged below the S-shaped pressing area and is used for collecting water extruded by the dewatering roll 7. And a high-pressure flushing device 12 is arranged below the S-shaped squeezing area, and the filter belt 13 is flushed by utilizing the jetted high-pressure water column, so that the filter belt 13 is prevented from being blocked by fine silt. The sewage sludge dewatering equipment further comprises a driving assembly, the driving assembly comprises a speed reducing motor 16, and an output shaft of the speed reducing motor 16 is connected with the synchronous gear through a coupler and used for ensuring synchronous operation of the two strips. The section of the flexible mud laying plate 5 is arc-shaped, and the arc-shaped edge is matched with the circumference of the dewatering roll 7 below the flexible mud laying plate 5. The flexible mud paving plate 5 with the arc-shaped edge is used for avoiding the phenomena of unstable mud feeding amount in the process of filtering and dewatering of the mud belts and uneven cloth when the mud raking process enters between the two filter belts 13, and avoiding the phenomena of local extension and deviation of the filter belts 13 in the using process.

According to the above technical solution, the following is to the utility model discloses a working process and method explain in detail:

adjust the thickness of mud through multiple mode, it is specific, through leading mud and loop through counterweight mud discharging plate 2, coulter formula mud raking device 3, mud scraper 4 and flexible mud paving plate 5, regulate and control the sludge amount that gets into the gradient dehydration subassembly, avoid the gradient dehydration subassembly to receive too big pressure and lead to mud to spill over from both ends. First, sewage containing sludge flows from the sludge inlet hopper 1 into the sludge inlet plate 17; then, the sewage passes through the counterweight sludge discharging plate 2, and the thickness of the sludge is adjusted by adjusting the number and scale positions of the counterweight blocks; the counterweight mud discharging plate 2 comprises a counterweight lever, a counterweight block, a chuck and a flat bed plate; the counterweight lever can rotate around a rotating shaft, the counterweight block is sleeved on the counterweight lever, and the chuck is clamped on the counterweight lever and used for clamping and limiting the counterweight block; the flat laying plate is welded and fixed at one end of the counterweight lever; the balance weight lever is provided with preset scales. The mud that comes out in with the hopper is tiled through the form of counter weight, realizes the adjustment to silt thickness according to the position on-the-spot adjustment of upper portion balancing weight. Then, the sludge after passing through the counterweight sludge discharge plate 2 flows to the sludge raking group, and the adjusting handle is pulled to change the inclination angle of the coulter type sludge raking device 3, so that the sludge at the lower part is turned up and down while turning to the two sides. Then, the sludge passing through the coulter type sludge raking device 3 flows to the sludge scraping plate 4, and the sludge scraping plate 4 scrapes the sludge. The sludge after passing through the mud scraping plate 4 flows into the flexible mud paving plate 5 to control the mud feeding amount entering the dewatering assembly. The flexible mud laying plate 5 is arranged above the dewatering roll 7, and one side, close to the dewatering roll 7, of the flexible mud laying plate 5 is provided with a preset radian which is matched with the edge of the dewatering roll 7. The flexible mud paving plate 5 is used for avoiding the phenomena of unstable mud feeding amount in the mud belt filtering and dewatering process and uneven cloth distribution when mud enters between the two filter belts 13 in the mud raking process, and avoiding the phenomena of local extension and deviation of the filter belts 13 in the using process. Before the sewage enters the mud discharging plate, the speed reducing motor 16 is started for preheating, the speed reducing motor 16 drives the driving roller 18 to rotate, and the driving roller 18 transmits power to the driven roller 14 through a pair of synchronous gears. At the moment, the power of the driving roller 18 and the driven roller 14 is completely synchronous, the driving roller 18 and the driven roller 14 respectively drive the two sections of filter belts 13 to operate, and the two sections of filter belts 13 positioned in the frame 9 are overlapped and pressed to extrude the sludge flowing through; two sections of filter belts 13 outside the frame 9 are separated between the driving rollers 18 and the driven rollers 14 to extrude the extruded sludge. It is worth mentioning that the diameter of the dewatering rollers 7 is gradually reduced from the counterweight mud outlet plate 2 to the mud inlet hopper 1, the sludge is firstly rolled between two sections of filter belts 13 at the dewatering rollers 7, the rolled sludge continuously passes through a plurality of S-shaped dewatering rollers 7 to form an S-shaped roundabout, and the sludge is fully ground in the roundabout rolling process to ensure further dewatering; through multiple experiments and strict calculation, the S-shaped roundabout grinding mode can ensure that the dehydration rate of the sludge reaches the standard, and the water-containing filtration of the finally extruded mud cake reaches the standard, namely, is less than or equal to 60 percent. The water extruded by milling flows into a water tank 10 to be collected. It is worth mentioning that the dewatering roll 7 close to the flexible mud laying plate 5 is a large wrap angle low pressure dewatering roll 7, and due to the characteristics of the mud, namely, if the pressure of the water is too large to be filtered out from the two sides of the filter belt 13 when the hydraulic load or the solid content and the like fluctuate, the mud leaking phenomenon to the two ends can occur. The large roll with 228 degrees of wrap angle and 1200mm diameter ensures that the belt has a low-pressure dewatering area of more than 2500mm, ensures that most of water is already dewatered when entering an S-shaped pressing zone, and avoids the phenomenon of mud leakage at two ends of the filter belt 13 under the condition of large pressure. It is worth mentioning, the utility model discloses an air bag pressure fine setting deviation correcting system ensures that filter belt 13 rectifies on line in the use, can not appear the phenomenon of rectifying by a wide margin, avoids filter belt 13 to rectify by a wide margin and forms the phenomenon that the distortion was discounted. The working process of the air bag pressure fine adjustment deviation correction system is as follows: the two ends of the deviation rectifying roller 15, which are arranged in the axial direction, are provided with at least two tensioning airbags 8, and the tensioning airbags 8 are attached to the deviation rectifying box 11 and the deviation rectifying roller 15 by preset pressing force. Photoelectric sensors are arranged in the frame 9 and at two ends of the rectification roller 15, and can sense whether deviation occurs in real time and respectively control the tensioning airbags 8 at two ends of the rectification roller 15 to finely adjust the deviation. Meanwhile, the tension airbag 8 is also arranged at other positions of the equipment, such as between the frame 9 and the press roll 6, and the pressing force between the press roll 6 and the filter belt 13 is adjusted by controlling the inflation and deflation of the tension airbag 8, so that the pressing force between the filter belt 13 and the dewatering roll 7, the driving roll 18, the driven roll 14 and the press roll 6 is ensured to be within a preset range.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A sewage sludge dewatering apparatus, comprising:

the basic assembly comprises a rack, a side plate fixed on the periphery of the rack and a mud inlet plate which is fixed on the rack and has the same length and width as the rack;

2. The sewage sludge dewatering apparatus of claim 1, wherein: the air bag fine adjustment deviation correcting device comprises a deviation correcting box, a deviation correcting roller and at least two tensioning air bags, wherein the deviation correcting roller is movably arranged in the deviation correcting box and can preset angle deflection, and the at least two tensioning air bags are arranged between the deviation correcting box and the deviation correcting roller.

3. The sewage sludge dewatering apparatus of claim 2, wherein: the tensioning air bags are respectively arranged at the head end and the tail end of the deviation rectifying roller and positioned at two sides of the deviation rectifying roller in the axis direction, and the tensioning air bags are attached to the deviation rectifying box and the deviation rectifying roller by preset pressing force.

4. The sewage sludge dewatering apparatus of claim 1, wherein: the coulter type mud raking device is formed by arranging a plurality of coulters in a preset row number and a preset column number to form a plurality of groups, and one column of coulters form a group of coulter type mud raking device.

5. The sewage sludge dewatering apparatus of claim 4, wherein: each group of coulter type mud raking devices comprise fixed seats symmetrically arranged on two sides of the mud feeding plate and coulters rotatably arranged on the fixed seats; the two mutually symmetrical fixing seats are rotatably connected with a rotating shaft through a bearing seat and a bearing, and the coulter is uniformly fixed on the rotating shaft at a preset distance.

6. The sewage sludge dewatering apparatus of claim 5, wherein: the power of each group of coulter type mud raking devices is synchronous; chain wheels are fixed at two ends of each rotating shaft, the chain wheels are connected through chains, and an adjusting handle is welded on the rotating shaft close to one side of the mud feeding hopper.

7. The sewage sludge dewatering apparatus of claim 1, wherein: the mud scraper is made of a 304 stainless steel plate, and the section of the mud scraper is in a preset arc shape; the filter belt is wound on the driving roller, the driven roller, the dewatering roller and the compression roller; the two sections of filter belts are overlapped and pressed on the dewatering roll and are S-shaped and roundabout in the frame, and the two sections of filter belts are separated between the driving roll and the driven roll.

8. The sewage sludge dewatering apparatus of claim 1, wherein: the sewage sludge dewatering equipment further comprises a driving assembly, the driving assembly comprises a speed reducing motor, and an output shaft of the speed reducing motor is connected with the synchronous gear through a coupler.

9. The sewage sludge dewatering apparatus of claim 1, wherein: the section of the flexible mud laying plate is arc-shaped, and the arc-shaped edge is matched with the circumference of the dewatering roll below the flexible mud laying plate.