CN113816582A - Pre-concentration type sludge press-filtration dehydration equipment and method - Google Patents
Pre-concentration type sludge press-filtration dehydration equipment and method Download PDFInfo
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- CN113816582A CN113816582A CN202111067434.XA CN202111067434A CN113816582A CN 113816582 A CN113816582 A CN 113816582A CN 202111067434 A CN202111067434 A CN 202111067434A CN 113816582 A CN113816582 A CN 113816582A
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- pressing
- conveying belt
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- 239000010802 sludge Substances 0.000 title claims abstract description 105
- 230000018044 dehydration Effects 0.000 title claims abstract description 42
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 42
- 238000001914 filtration Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004094 preconcentration Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 33
- 238000007790 scraping Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 3
- 230000001276 controlling effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Classifications
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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
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
Abstract
The invention discloses pre-concentration type sludge press-filtration dehydration equipment and a method, wherein the pre-concentration type sludge press-filtration dehydration equipment comprises a dehydration tank and a support for supporting the dehydration tank, wherein the top of the dehydration tank is provided with a feeding pipe, and the bottom of one end of the dehydration tank, which is far away from the feeding pipe, is provided with a discharging pipe; a sludge centrifuge is arranged in the dehydration tank and is used for primarily separating sludge from water; a poking rod piece is arranged in the discharge pipe and used for dispersing sludge discharged from the dehydration tank; the sludge dewatering device is designed according to the existing requirements, sludge is conveyed to the conveying belt to move after the sludge is primarily dewatered by the dewatering tank, the pressing belt and the conveying belt are matched to extrude the sludge under the pressure exerted by the pressing belt in the moving process, water in the sludge can be extruded, then a mud cake can be output from the discharging end, the work is continuous, and the dewatering efficiency is high.
Description
Technical Field
The invention relates to the technical field of sludge dehydration, in particular to pre-concentration type sludge press filtration dehydration equipment and a method.
Background
Sludge dewatering is a sludge treatment method in which fluid primary, concentrated or digested sludge is dewatered and converted into semi-solid or solid sludge blocks. After dewatering, the water content of the sludge can be reduced to fifty-five percent to eighty percent, depending on the properties of the sludge and the sediments and the efficiency of the dewatering equipment. Sludge can form a mud cake after being dehydrated and then can be dried.
In the sewage sludge ultrahigh pressure dewatering device with the current publication number of CN 104817245B, sludge is introduced into a filter pressing cavity through a feed inlet, a feed inlet and a discharge outlet are closed, then a power mechanism can be controlled to work, a driving push rod drives an extrusion plate to extrude the sludge, the power mechanism can be pressurized subsequently, the sludge is further extruded at high pressure, then the feed inlet and the discharge outlet are opened, and a sludge cake formed after dewatering is pushed out.
However, when the device is used, the sludge dewatering process is discontinuous, the sludge dewatering efficiency is affected, and during filter pressing, equipment in the previous process needs to be stopped for multiple times, so that the equipment is easy to damage after long-term use, and needs to be improved. Aiming at the problems, a pre-concentration type sludge press filtration dehydration device and a method are provided.
Disclosure of Invention
The invention aims to provide pre-concentration type sludge press filtration dehydration equipment and a method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a pre-concentration type sludge press-filtration dehydration device comprises a dehydration tank and a support for supporting the dehydration tank, wherein a feeding pipe is arranged at the top of the dehydration tank, and a discharging pipe is arranged at the bottom of one end, away from the feeding pipe, of the dehydration tank;
a sludge centrifuge is arranged in the dehydration tank and is used for primarily separating sludge from water;
a poking rod piece is arranged in the discharge pipe and used for dispersing sludge discharged from the dehydration tank;
arrange material pipe discharge gate department and be equipped with conveying mechanism for carry mud, including the conveyer belt with be used for supporting the first frame of conveyer belt steady operation, the conveyer belt top is equipped with the mechanism of exerting pressure for exert pressure to mud on the conveyer belt and extrude moisture.
Preferably, the sludge centrifugal part comprises a conical shaft, the outer diameter of one end, close to the feeding pipe, of the conical shaft is smaller than the outer diameter of one end, far away from the feeding pipe, of the conical shaft, the outer wall of the conical shaft is connected with a spiral blade, and one side of the dewatering tank is provided with a motor for driving the conical shaft to rotate; the bottom of the dehydration tank is provided with a plurality of groups of water outlets communicated with the inner cavity of the dehydration tank, the support is provided with a water collecting box corresponding to the drainage end of the water outlets, and the bottom of the water collecting box is provided with a water delivery pipe.
Preferably, the poking rod pieces are four groups, the four groups of poking rod pieces are arranged on the central rod in an annular array mode, each group of poking rod pieces comprises a plurality of poking rods, the poking rods of adjacent groups are arranged in a staggered mode, and two ends of the central rod are in running fit with the inner wall of the discharge pipe.
Preferably, a water outlet is formed in one end of the center rod and connected with the driven wheel, one end, far away from the motor, of the conical shaft is connected with the driving rod, the driving rod extends out of the dewatering tank and is connected with the driving wheel, and the driving wheel is connected with the driven wheel through a synchronous belt.
Preferably, the mechanism of exerting pressure is including pressing the area, press the inside roller set of pressing that is equipped with of area, press the roller set to install in the second frame, press the area and still be equipped with the dancer roll near the inside of dewatering tank one end, the dancer roll is connected with the first extensible member that is used for controlling distance between dancer roll and the conveyer belt, press the area inside still to install and be used for carrying out the tensioning tension roller of tensioning to pressing the area, the tension roller is connected with the second extensible member that is used for controlling distance between tension roller and the conveyer belt.
Preferably, press and take the distance between feed end and the conveyer belt to be greater than and press the distance of taking out between material end and the conveyer belt, press and take and the conveyer belt to be the filter screen design of the mud drainage of being convenient for, be connected with in the second frame and be used for the drive to press roller set pivoted first transmission piece, be connected with in the first frame and be used for driving conveyer belt pivoted second rotation piece.
Preferably, the first telescopic part comprises a first fixed block, two ends of the adjusting roller are rotatably connected with the first fixed block, the bottom of the first fixed block is connected with a first telescopic rod, and the bottom of the first telescopic rod is connected with a fixed seat for supporting and fixing the first telescopic rod; the second extensible member comprises a second fixed block, the two ends of the tension roller are rotatably connected with the second fixed block, the bottom of the second fixed block is connected with a second extensible rod, and the bottom of the second extensible rod is connected with a second rack.
Preferably, one end of the pressing belt and one end of the conveying belt far away from the dewatering tank are provided with two groups of scraper mechanisms used for cleaning the pressing belt and the conveying belt, one group of scraper mechanisms are arranged at the top of the pressing belt, one group of scraper mechanisms are arranged at the bottom of the conveying belt, and the two groups of scraper mechanisms are symmetrically arranged.
Preferably, the scraping plate mechanism comprises a scraping plate, one end of the scraping plate is in contact with the pressing belt or the conveying belt, two sides of the end, far away from the end in contact with the pressing belt or the conveying belt, of the scraping plate are connected with a rotating rod, one end, far away from the scraping plate, of the rotating rod is rotatably connected with a fixed rod, one side of the bottom of the fixed rod is rotatably connected with a length-adjustable adjusting rod, one end, far away from the fixed rod, of the adjusting rod is rotatably connected with a supporting rod, and one end, far away from the adjusting rod, of the supporting rod is fixedly connected with the scraping plate; the bottom of the fixing rod on the pressing belt is fixed on the second rack through a bolt, and one end, close to the conveying belt, of the fixing rod on the conveying belt is fixed on the first rack through a bolt.
Compared with the prior art, the invention has the beneficial effects that:
the sludge dewatering device can input the sludge onto the conveying belt to move after the sludge is preliminarily dewatered by the dewatering tank, and in the moving process, the pressing belt is matched with the conveying belt to extrude the sludge under the pressure exerted by the pressing belt, so that water in the sludge can be extruded out, and then a mud cake can be output from the discharge end, so that the work is continuous, and the dewatering efficiency is high;
in the invention, after the sludge is centrifugally dewatered in the dewatering tank, the discharged sludge can enter the discharge pipe, and the stirring rod piece is driven to work while the sludge centrifugal piece works, so that the sludge is dispersed and uniformly discharged onto the conveying belt, and the subsequent filter pressing is convenient;
according to the invention, the height of the feeding end of the pressing belt in the pressing mechanism can be adjusted, so that sludge can be conveniently input between the feeding belt and the conveying belt, and filter pressing operation can be conveniently and smoothly carried out.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a motor arrangement in the present invention.
Figure 3 is a schematic view of the interior of the dewatering tank and the discharge pipe according to the invention.
Fig. 4 is a schematic structural diagram of a conveying mechanism and a pressing mechanism in the invention.
Fig. 5 is a schematic structural view of the scraper mechanism of the present invention.
In the figure: 11-a dewatering tank, 12-a feeding pipe, 13-a discharging pipe, 14-a water outlet, 15-a water collecting box, 16-a conveying mechanism, 17-a pressing mechanism, 18-a scraping mechanism, 19-a motor, 20-a conveying belt, 21-a first frame, 22-a pressing belt, 23-a pressing roller set, 24-a second frame, 25-an adjusting roller, 26-a first fixed block, 27-a first telescopic rod, 28-a tension roller, 29-a second fixed block, 30-a second telescopic rod, 31-a conical shaft, 32-a spiral blade, 33-a driving wheel, 34-a driven wheel, 35-a central rod, and, 36- -poking rod piece, 37- -scraper, 38- -rotating rod, 39- -fixed rod, 40- -adjusting rod, 41- -supporting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, in an embodiment of the present invention, a pre-concentration type sludge press filtration dehydration apparatus includes a dehydration tank 11 and a support for supporting the dehydration tank 11, a feeding pipe 12 is disposed at the top of the dehydration tank 11, and a discharging pipe 13 is disposed at the bottom of one end of the dehydration tank 11 away from the feeding pipe 12;
a sludge centrifuge is arranged in the dehydration tank 11 and is used for primarily separating sludge from water;
a poking rod piece 36 is arranged in the discharge pipe 13 and used for dispersing sludge discharged from the dehydration tank 11;
arrange material pipe 13 discharge gate department and be equipped with conveying mechanism 16 for carry sludge, including conveyer belt 20 and be used for supporting the first frame 21 of conveyer belt 20 steady operation, 20 tops of conveyer belt are equipped with mechanism 17 of exerting pressure for exert pressure to the mud on the conveyer belt 20 and extrude moisture.
The sludge centrifugal part comprises a conical shaft 31, the outer diameter of one end, close to the feeding pipe 12, of the conical shaft 31 is smaller than the outer diameter of one end, far away from the feeding pipe 12, of the conical shaft 31, the outer wall of the conical shaft 31 is connected with a spiral blade 32, and one side of the dewatering tank 11 is provided with a motor 19 for driving the conical shaft 31 to rotate; a plurality of groups of water outlets 14 communicated with the inner cavity of the dehydration tank 11 are arranged at the bottom of the dehydration tank 11, a water collecting box 15 corresponding to the drainage end of the water outlets 14 is arranged on the support, and a water conveying pipe is arranged at the bottom of the water collecting box 15; the water supply pipe can be connected with an external water pipe or a water pump for use;
sludge to be dewatered can enter the dewatering tank 11 through the feeding pipe 12, the motor 19 works to drive the conical shaft 31 to rotate, the conical shaft 31 drives the spiral blade 32 to rotate, the sludge flows in the guide of the spiral blade 32, the sludge generates centrifugal force under the action of the conical shaft 31 and the spiral blade 32, in rotation, water is separated from the sludge due to different densities of the water and the sludge and flows out from the water outlet 14, and the design of the conical shaft 31 can gradually reduce a cavity through which the sludge passes, so that the water in the sludge can be discharged.
Four groups of deflector rod pieces 36 are arranged, the four groups of deflector rod pieces 36 are arranged on the central rod 35 in an annular array, each group of deflector rod pieces 36 comprises a plurality of deflector rods, the deflector rods of adjacent groups are arranged in a staggered manner, and two ends of the central rod 35 are in rotating fit with the inner wall of the discharge pipe 13; a water outlet 14 extends from one end of the central rod 35 to be connected with a driven wheel 34, a driving rod is connected to one end, away from the motor 19, of the conical shaft 31, the driving rod extends out of the dewatering tank 11 to be connected with a driving wheel 33, and the driving wheel 33 is connected with the driven wheel 34 through synchronous belt transmission;
the conical shaft 31 can drive the driving wheel 33 to rotate in the rotating process, so that the driven wheel 34 is driven to drive the central rod 35 to rotate, the central rod 35 drives the deflector rod piece 36 to rotate in the rotating process, the deflector rod can assist the sludge in the dewatering tank 11 to be discharged, and meanwhile, the sludge can be scattered, and the sludge is scattered and uniformly discharged onto the conveying belt 20, so that subsequent filter pressing is facilitated;
the pressing mechanism 17 comprises a pressing belt 22, a pressing roller group 23 is arranged in the pressing belt 22, the pressing roller group 23 is installed on a second rack 24, an adjusting roller 25 is further arranged in the pressing belt 22 close to one end of the dewatering tank 11, the adjusting roller 25 is connected with a first telescopic piece used for controlling the distance between the adjusting roller 25 and the conveying belt 20, a tension roller 28 used for tensioning the pressing belt 22 is further installed in the pressing belt 22, and the tension roller 28 is connected with a second telescopic piece used for controlling the distance between the tension roller 28 and the conveying belt 20;
the sludge is conveyed on the conveying belt 20 and then conveyed between the pressing belt 22 and the conveying belt 20, and water in the sludge is filtered out through the conveying belt 20 under the extrusion of the pressing belt 22 and the conveying belt 20;
the distance between the feeding end of the pressing belt 22 and the conveying belt 20 is larger than the distance between the discharging end of the pressing belt 22 and the conveying belt 20, so that sludge is conveniently input between the pressing belt 22 and the conveying belt 20, the sludge accumulation at the feeding end of the pressing belt 22 is prevented, and the smooth conveying of the sludge is facilitated; the press belt 22 and the conveyer belt 20 are the filter screen design convenient for sludge drainage, be connected with on the second frame 24 and be used for driving press roller group 23 pivoted first transmission piece, be connected with on the first frame 21 and be used for driving conveyer belt 20 pivoted second rotation piece.
The first telescopic part comprises a first fixing block 26, two ends of the adjusting roller 25 are rotatably connected with the first fixing block 26, the bottom of the first fixing block 26 is connected with a first telescopic rod 27, and the bottom of the first telescopic rod 27 is connected with a fixing seat for supporting and fixing the first telescopic rod 27; the second telescopic part comprises a second fixed block 29, two ends of the tension roller 28 are rotatably connected with the second fixed block 29, the bottom of the second fixed block 29 is connected with a second telescopic rod 30, and the bottom of the second telescopic rod 30 is connected with the second rack 24;
the first telescopic rod 27 can control the height of the first fixing block 26 when stretching, so that the height of the adjusting roller 25 is controlled, the adjustment of the distance between the feeding end of the pressing belt 22 and the conveying belt 20 is realized, then the second telescopic rod 30 can be controlled to work, the height of the second fixing block 29 is adjusted, and the height of the tension roller 28 is adjusted, so that the pressing belt 22 can be kept in a tight state.
One end of the pressing belt 22 and the conveying belt 20 far away from the dewatering tank 11 is provided with two sets of scraper mechanisms 18 used for cleaning the pressing belt 22 and the conveying belt 20, one set of scraper mechanisms 18 is arranged at the top of the pressing belt 22, one set of scraper mechanisms 18 is arranged at the bottom of the conveying belt 20, and the two sets of scraper mechanisms 18 are symmetrically arranged.
The scraper mechanism 18 comprises a scraper 37, one end of the scraper 37 is in contact with the pressing belt 22 or the conveying belt 20, two sides of one end, far away from the pressing belt 22 or the conveying belt 20, of the scraper 37 are connected with a rotating rod 38, one end, far away from the scraper 37, of the rotating rod 38 is rotatably connected with a fixed rod 39, one side of the bottom of the fixed rod 39 is rotatably connected with an adjusting rod 40 with adjustable length, one end, far away from the fixed rod 39, of the adjusting rod 40 is rotatably connected with a supporting rod 41, and one end, far away from the adjusting rod 40, of the supporting rod 41 is fixedly connected with the scraper 37; the bottom of the fixed rod 39 on the pressing belt 22 is fixed on the second frame 24 through a bolt, and one end, close to the conveying belt 20, of the fixed rod 39 on the conveying belt 20 is fixed on the first frame 21 through a bolt;
the scraper 37 can scrape off the sludge remaining on the pressing belt 22 and the conveyor belt 20, and when the length of the adjusting rod 40 is adjusted, the rotating rod 38 can rotate around the fixing rod 39, so that the angle between the scraper 37 and the fixing rod 39 can be adjusted, and the distance between the scraper 37 and the pressing belt 22 or the conveyor belt 20 can be adjusted.
The working principle of the invention is as follows: when the pre-concentration type sludge press-filtration dewatering equipment is used, sludge enters the dewatering tank 11 through the feeding pipe 12, the motor 19 works to drive the conical shaft 31 to rotate, the sludge is driven by the conical shaft 31 and the helical blades 32 to do centrifugal motion and is conveyed to the side close to the discharge pipe 13, and during conveying, the water density in the sludge is lower than that of the sludge and is thrown to the inner wall of the dewatering tank 11 to flow into the water collecting box 15 from the water discharge port 14;
the sludge subjected to preliminary dehydration in the dehydration tank 11 flows into the discharge pipe 13, the conical shaft 31 drives the driving wheel 33 to rotate in the rotating process, so that the driven wheel 34 rotates under the action of the synchronous belt, and the central rod 35 drives the poking rod piece 36 to scatter the sludge and evenly convey the sludge to the conveying belt 20;
the sludge is conveyed on the conveying belt 20, then conveyed between the pressing belt 22 and the conveying belt 20, water in the sludge is filtered out through the conveying belt 20 under the extrusion of the pressing belt 22 and the conveying belt 20, then the sludge is discharged from the discharging end of the conveying belt 20, and the scraper 37 scrapes the sludge remained on the pressing belt 22 and the conveying belt 20.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
Claims (10)
1. A pre-concentration type sludge press-filtration dehydration device comprises a dehydration tank (11) and a support for supporting the dehydration tank (11), wherein a feeding pipe (12) is arranged at the top of the dehydration tank (11), and a discharging pipe (13) is arranged at the bottom of one end, far away from the feeding pipe (12), of the dehydration tank (11);
the method is characterized in that: a sludge centrifuge is arranged in the dehydration tank (11) and is used for primarily separating sludge from water;
a poking rod piece (36) is arranged in the discharge pipe (13) and is used for dispersing sludge discharged from the dehydration tank (11);
arrange material pipe (13) discharge gate department and be equipped with conveying mechanism (16) for carry mud, including conveyer belt (20) and be used for supporting first frame (21) that conveyer belt (20) stabilized work, conveyer belt (20) top is equipped with application of pressure mechanism (17) for exert pressure to mud on conveyer belt (20) and extrude moisture.
2. The pre-concentrated sludge press filtration dewatering device according to claim 1, wherein: the sludge centrifugal part comprises a conical shaft (31), the outer diameter of one end, close to the feeding pipe (12), of the conical shaft (31) is smaller than the outer diameter of one end, far away from the feeding pipe (12), of the conical shaft (31), the outer wall of the conical shaft (31) is connected with a spiral blade (32), and one side of the dewatering tank (11) is provided with a motor (19) for driving the conical shaft (31) to rotate;
the bottom of the dewatering tank (11) is provided with a plurality of groups of water outlets (14) communicated with the inner cavity of the dewatering tank (11), the support is provided with a water collecting box (15) corresponding to the water discharging end of the water outlets (14), and the bottom of the water collecting box (15) is provided with a water conveying pipe.
3. The pre-concentrated sludge press filtration dewatering device according to claim 2, wherein: the poking rod pieces (36) are four groups, the four groups of poking rod pieces (36) are arranged on the central rod (35) in an annular array mode, each group of poking rod pieces (36) comprises a plurality of poking rods, the poking rods of adjacent groups are arranged in a staggered mode, and two ends of the central rod (35) are in running fit with the inner wall of the discharge pipe (13).
4. The pre-concentrated sludge press filtration dewatering device according to claim 3, wherein: one end of the central rod (35) extends out of the water outlet (14) to be connected with the driven wheel (34), one end, far away from the motor (19), of the conical shaft (31) is connected with the driving rod, the driving rod extends out of the dehydration tank (11) to be connected with the driving wheel (33), and the driving wheel (33) is connected with the driven wheel (34) through synchronous belt transmission.
5. The pre-concentrated sludge press filtration dewatering device according to claim 1, wherein: pressing mechanism (17) are including pressing area (22), press area (22) inside and be equipped with pressing roller set (23), press roller set (23) and install on second frame (24), press area (22) and still be equipped with regulating roll (25) near the inside of dewatering tank (11) one end, regulating roll (25) are connected with and are used for controlling the first extensible member of distance between regulating roll (25) and conveyer belt (20), press area (22) inside still install and be used for carrying out tensioning tension roller (28) to pressing area (22), tension roller (28) are connected with and are used for controlling the second extensible member of distance between tension roller (28) and conveyer belt (20).
6. The pre-concentrated sludge press filtration dewatering device according to claim 5, wherein: the press belt (22) is greater than the press belt (22) between the feed end and the conveyer belt (20) apart from between the discharge end and the conveyer belt (20), press belt (22) and conveyer belt (20) and be the filter screen design of the mud drainage of being convenient for, be connected with on second frame (24) and be used for the drive to press roller set (23) pivoted first transmission piece, be connected with on first frame (21) and be used for driving conveyer belt (20) pivoted second rotation piece.
7. The pre-concentrated sludge press filtration dewatering device according to claim 5, wherein: the first telescopic piece comprises a first fixing block (26), two ends of the adjusting roller (25) are rotatably connected with the first fixing block (26), the bottom of the first fixing block (26) is connected with a first telescopic rod (27), and the bottom of the first telescopic rod (27) is connected with a fixing seat for supporting and fixing the first telescopic rod (27);
the second extensible member comprises a second fixed block (29), the two ends of the tension roller (28) are rotatably connected with the second fixed block (29), a second extensible rod (30) is connected to the bottom of the second fixed block (29), and a second rack (24) is connected to the bottom of the second extensible rod (30).
8. The pre-concentrated sludge press filtration dewatering device according to claim 5, wherein: one end of the pressing belt (22) and one end of the conveying belt (20) far away from the dewatering tank (11) are provided with two groups of scraper mechanisms (18) used for cleaning the pressing belt (22) and the conveying belt (20), one group of scraper mechanisms (18) are arranged at the top of the pressing belt (22), one group of scraper mechanisms (18) are arranged at the bottom of the conveying belt (20), and the two groups of scraper mechanisms (18) are symmetrically arranged.
9. The pre-concentrated sludge press filtration dewatering device according to claim 8, wherein: the scraper mechanism (18) comprises a scraper (37), one end of the scraper (37) is in contact with a pressing belt (22) or a conveying belt (20), two sides of one end, in contact with the pressing belt (22) or the conveying belt (20), of the scraper (37) are far away from the scraper (37), are connected with a rotating rod (38), one end, far away from the scraper (37), of the rotating rod (38) is rotated to be connected with a fixing rod (39), one side of the bottom of the fixing rod (39) is rotatably connected with an adjusting rod (40) with adjustable length, one end, far away from the fixing rod (39), of the adjusting rod (40) is rotatably connected with a supporting rod (41), and one end, far away from the adjusting rod (40), of the supporting rod (41) is fixedly connected with the scraper (37); the bottom of a fixing rod (39) on the pressing belt (22) is fixed on the second rack (24) through a bolt, and one end, close to the conveying belt (20), of the fixing rod (39) on the conveying belt (20) is fixed on the first rack (21) through a bolt.
10. A method of using the pre-concentrated sludge press filtration dewatering apparatus of any one of claims 1-9, comprising the steps of:
step one, sludge enters a dewatering tank (11) through a feeding pipe (12), a motor (19) works to drive a conical shaft (31) to rotate, the sludge is driven by the conical shaft (31) and a helical blade (32) to do centrifugal motion and is conveyed to one side close to a discharging pipe (13), and during conveying, the water density in the sludge is smaller than that of the sludge and is thrown to the inner wall of the dewatering tank (11) to flow into a water collecting box (15) from a water outlet (14);
secondly, the primarily dewatered sludge in the dewatering tank (11) flows into a discharge pipe (13), a driving wheel (33) is driven to rotate by a conical shaft (31) in the rotating process, so that a driven wheel (34) rotates under the action of a synchronous belt, and a central rod (35) drives a poking rod piece (36) to scatter the sludge and evenly convey the sludge to a conveying belt (20);
and step three, conveying the sludge on the conveying belt (20), conveying the sludge between the pressing belt (22) and the conveying belt (20), filtering water in the sludge through the conveying belt (20) under the extrusion of the pressing belt (22) and the conveying belt (20), discharging the sludge from the discharge end of the conveying belt (20), and scraping residual sludge on the pressing belt (22) and the conveying belt (20) by the scraper (37).
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| CN202111067434.XA CN113816582A (en) | 2021-09-13 | 2021-09-13 | Pre-concentration type sludge press-filtration dehydration equipment and method |
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| CN202111067434.XA CN113816582A (en) | 2021-09-13 | 2021-09-13 | Pre-concentration type sludge press-filtration dehydration equipment and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114291999A (en) * | 2021-12-28 | 2022-04-08 | 广州棱谱仪器科技有限公司 | Low-energy-consumption sludge dewatering and drying integrated equipment |
| CN115466033A (en) * | 2022-11-14 | 2022-12-13 | 枣庄市金地源环保设备有限公司 | A mud hydroextractor for sewage treatment |
| CN115925215A (en) * | 2022-11-18 | 2023-04-07 | 盐城市泉通环保设备有限公司 | Sludge treatment device and working method thereof |
| KR102631037B1 (en) * | 2023-07-10 | 2024-01-30 | 주식회사 진우기술 | Sludge Dehydrator Having Efficient Sludge Discharge Structure |
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