CN218321106U - Sludge dewatering processing system - Google Patents
Sludge dewatering processing system Download PDFInfo
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- CN218321106U CN218321106U CN202222426928.9U CN202222426928U CN218321106U CN 218321106 U CN218321106 U CN 218321106U CN 202222426928 U CN202222426928 U CN 202222426928U CN 218321106 U CN218321106 U CN 218321106U
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Abstract
The utility model discloses a belong to sludge dewatering technical field, specifically be a sludge dewatering processing system, include: a sludge pump that is arranged in folding spiral shell formula sludge thickening machine, is arranged in carrying out the sludge conditioning tank that takes care of to the mud after the separation, is used for carrying out dehydration subassembly that dewaters in turn, is arranged in transmitting the mud after taking care to the dehydration subassembly to the mud after the separation to the mud in the muddy water mixed liquid, fold spiral shell formula sludge thickening machine with the sludge conditioning tank is connected through the connecting pipe, the sludge conditioning tank with the input of sludge pump is connected through the connecting pipe, the utility model discloses a set up the dehydration subassembly and have the effect that realizes that the alternating carries out the dehydration to mud, dewater through realizing the alternating to mud, have the problem of solving present sludge dewatering equipment most and all being intermittent operation to can improve dehydration efficiency greatly.
Description
Technical Field
The utility model relates to a sludge dewatering technical field specifically is a sludge dewatering processing system.
Background
Sludge is produced in sewage treatment, the water content of the sludge is high, and dehydration treatment is required before sludge treatment. The conventional traditional sludge dewatering treatment process flow is generally as follows: firstly, discharging sludge-water mixed liquor into a sludge concentration tank to perform sludge-water separation by means of gravity precipitation, feeding the concentrated sludge-water mixed liquor into a sludge conditioning tank, wherein a sludge conditioner generally uses polyaluminium chloride, quicklime, PAM and the like, and after conditioning, lifting sludge to sludge dewatering equipment for dewatering by a sludge pump, wherein the sludge dewatering equipment generally comprises a belt filter press, a plate and frame filter press, a centrifugal dehydrator and the like. The supernatant (filtrate) is returned to the secondary sedimentation tank or the regulating tank.
The existing sludge dehydration treatment process has the following defects:
1. odor is generated in the operation process of the sludge concentration tank, and the sludge concentration tank needs to be covered and sealed for waste gas collection and treatment, so that the construction investment and the operation cost are high;
2. the conventional sludge concentration tank is generally designed to have the retention time of more than 12 hours, even longer, and the retention of the sludge causes anaerobic fermentation of partial sludge in the sludge concentration tank, which causes poor filter pressing of the sludge and difficult dehydration of the sludge;
3. most of the sludge concentration tanks are operated intermittently, sludge inlet and sludge outlet are not performed simultaneously, sludge-water separation is realized through natural sedimentation, and the sludge tanks cannot be built too much due to the limitation of sites, construction cost and the like, so that the treatment capacity of the sludge tanks is restricted. Due to the capacity problem of the sludge concentration tank, if sludge is continuously fed and discharged, the sludge-water separation effect is directly influenced, and sludge is carried in supernate;
4. the sludge dewatering equipment used in the traditional sludge dewatering treatment process has the advantages that the water content of the treated sludge is over 80 percent, the water content of the treated sludge is higher, and great difficulty is brought to subsequent treatment.
Therefore, it is necessary to invent a sludge dewatering treatment system.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the above and/or other problems occurring in the conventional sludge dewatering treatment system.
Therefore, the utility model aims at providing a sludge dewatering processing system can solve above-mentioned current problem of proposing.
For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:
a sludge dewatering treatment system, comprising:
the spiral sludge thickener is used for separating mud and water in the mud-water mixed liquid;
a sludge conditioning tank for conditioning the separated sludge;
the dehydration component is used for alternately dehydrating the conditioned sludge;
a sludge pump for delivering conditioned sludge to the dewatering assembly.
As the utility model discloses a sludge dewatering processing system's an optimal selection scheme, wherein: the spiral sludge thickener is connected with the sludge conditioning tank through a connecting pipe, the sludge conditioning tank is connected with the input end of the sludge pump through a connecting pipe, the output end of the sludge pump is fixedly connected with two groups of pipelines through a three-way joint, and the two ends of the dehydration component are both connected with the pipelines.
As the utility model discloses a sludge dewatering processing system's an optimal selection scheme, wherein: the dehydration assembly comprises:
the inner wall of the middle side of the bottom end of the large hollow pipe is provided with a liquid discharge hole, and two sides of the top end of the large hollow pipe are fixedly provided with pipelines;
the filter pressing components are used for extruding and filtering the muddy water mixed liquid, and are mounted on the inner walls of the two ends of the large hollow pipe.
As the utility model discloses a sludge dewatering processing system's an optimal selection scheme, wherein: the filter pressing assembly comprises:
two groups of circular plates are fixedly installed on the inner walls of the two ends of the large hollow pipe, the circular plates are fixedly installed on the two ends of the small hollow pipe, and a pipeline is fixedly installed on the inner wall of the top end of the small hollow pipe;
the extrusion component is used for filtering the muddy water mixed liquid, and the inner wall of one end of the small hollow pipe is provided with the extrusion component;
and the sealing assembly is used for blocking the muddy water mixed liquid and can be detachably connected to the inner wall of the other end of the small hollow pipe.
As a sludge dewatering processing system a preferred scheme, wherein: the extrusion assembly includes:
the inner walls of two sides of one end of the small hollow pipe are fixedly provided with the supporting rods;
the supporting blocks are fixedly arranged between the two groups of supporting rods;
the box body is fixedly arranged on the supporting block;
and the hydraulic cylinder is fixedly arranged on the inner wall of the box body.
As the utility model discloses a sludge dewatering processing system's an optimal selection scheme, wherein: the compression assembly further comprises:
the output end of the hydraulic cylinder is fixedly provided with a pressing plate through a piston rod, the pressing plate is connected in the inner cavity of the large hollow pipe in a sliding manner, and a sealing ring is arranged between the pressing plate and the large hollow pipe;
and the inner wall of the pressure plate is provided with a plurality of filter holes.
As the utility model discloses a sludge dewatering processing system's an optimal selection scheme, wherein: the sealing component is as follows:
the inner wall of the first baffle is provided with a plurality of through holes;
the screw, the one end of screw is through-hole threaded connection on the little hollow tube, and is equipped with the sealing washer between little hollow tube and the first baffle.
As a sludge dewatering processing system a preferred scheme, wherein: the sealing component is as follows:
the cross section of the second baffle is T-shaped, and the second baffle is in threaded connection with the inner wall of the other end of the small hollow pipe;
a drive plate fixedly mounted on one side of the second baffle plate.
Compared with the prior art:
1. through setting up and folding spiral shell formula sludge thickening machine, have the effect of realizing cancelling sludge thickening tank, through cancelling sludge thickening tank, have the stink pollution problem that the sludge thickening tank brought of cancelling, avoided the exhaust gas collection to handle the problem, and sludge thickening tank most all is the problem of intermittent operation. The whole process of sludge dewatering is in a semi-closed state, so that the odor in a sludge dewatering room is reduced, and the operating environment is improved.
2. Have the effect that realizes that the alternating dewaters, continuous processing mud through setting up the dehydration subassembly, dewater mud through realizing the alternating, have and solve present sludge dewatering equipment most all be intermittent type operation's problem to can improve dehydration efficiency greatly.
3. Compared with the traditional sludge dewatering treatment process, the sludge dewatering treatment system can continuously operate, the sludge-water mixed liquid enters and exits at the same time, the sludge treatment capacity is obviously improved, the sludge treatment capacity can be improved by 20-25 percent, and the direct cost of sludge treatment can be reduced by about 5 percent.
4. Through the utility model discloses a sludge dewatering processing system, the moisture content of mud can reduce to below 50%, and prior art adopts ordinary plate and frame filter press to handle back mud moisture content and generally is not less than 75%, and belt filter press, centrifugal dehydration machine handle back mud moisture content and generally are not less than 80%, and dehydration efficiency is higher.
Drawings
FIG. 1 is a schematic view of the overall flow of the structure of the present invention;
FIG. 2 is a schematic front view of a dewatering module according to embodiment 1 of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
fig. 4 is a schematic front view of a dewatering component in embodiment 2 of the present invention.
In the figure: the device comprises a stacked spiral sludge thickener 10, a sludge conditioning tank 20, a sludge pump 30, a dewatering component 40, a large hollow pipe 41, a liquid discharge hole 42, a pipeline 43, a filter pressing component 50, a small hollow pipe 51, a circular plate 52, an extrusion component 60, a support rod 61, a support block 62, a box body 63, a hydraulic cylinder 64, a pressing plate 65, a filter hole 66, a sealing component 70, a first baffle plate 71, a through hole 72, a screw 73, a second baffle plate 76 and a driving plate 77.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1:
the utility model provides a sludge dewatering processing system, please refer to fig. 1-3, include: the sludge treatment device comprises a stacked spiral sludge concentrator 10 for separating sludge from water in sludge-water mixed liquor, a sludge conditioning tank 20 for conditioning the separated sludge, a dehydration component 40 for alternately dehydrating the conditioned sludge, and a sludge pump 30 for conveying the conditioned sludge into the dehydration component 40.
The spiral sludge thickener 10 is connected with the sludge conditioning tank 20 through a connecting pipe, the sludge conditioning tank 20 is connected with the input end of the sludge pump 30 through a connecting pipe, the output end of the sludge pump 30 is fixedly connected with two groups of pipelines 43 through a three-way joint, two ends of the dehydration component 40 are both connected with the pipelines 43, the sludge thickener is a concentration and clarification device which works continuously or intermittently in a central transmission type, and is mainly used for water treatment systems of blast furnaces, continuous casting, hot rolling, water plants and the like in the metallurgical industry or for concentration or purification of all solid-containing slurry in industries such as coal, chemical industry, building materials, water sources, sewage treatment and the like, and can also be used for concentration and dehydration of fine ore pulp and tailing pulp in wet-type ore dressing operation.
In the embodiment, the spiral sludge concentrator 10 receives the treated wastewater, and the main water quality indexes are that COD is 10000-15000mg/L and ammonia nitrogen is 500-800mg/L. The effluent quality indexes of the secondary sedimentation tank after biochemical treatment are that COD is 200-300mg/L and ammonia nitrogen is 5-10mg/L. The main components of the biochemical sludge comprise water, microorganism corpses, organic pollutants, inorganic matters and the like, and the organic matter content of the sludge is about 70 percent.
The operating parameter data of the stacked sludge thickener 10 are as follows:
1. sludge feeding amount: depending on the equipment type, currently 30-50m 3 /h；
2. Adding the medicine amount: PAM, 0.3-0.5 per mill of the mass percentage of the oven dry sludge;
3. rotating speed of the screw shaft: and (5) frequency conversion speed regulation, which is timely adjusted according to the mud discharging effect.
Dewatering assembly 40 includes: the large hollow pipe 41 and a filter pressing assembly 50 for extruding and filtering the muddy water mixed liquid;
a liquid discharge hole 42 is formed in the inner wall of the middle side of the bottom end of the large hollow pipe 41, pipelines 43 are fixedly mounted on two sides of the top end of the large hollow pipe 41, a group of valves are arranged on each group of pipelines 43, and filter pressing assemblies 50 are mounted on the inner walls of two ends of the large hollow pipe 41;
the press assembly 50 includes: the device comprises two groups of small hollow pipes 51, an extrusion assembly 60 for filtering the muddy water mixed liquid and a sealing assembly 70 for blocking the muddy water mixed liquid;
two sets of circular plates 52 are fixedly mounted on the inner walls of the two ends of the large hollow tube 41, the circular plates 52 are fixedly mounted on the two ends of the small hollow tube 51, the pipeline 43 is fixedly mounted on the inner wall of the top end of the small hollow tube 51, the extrusion assembly 60 is mounted on the inner wall of one end of the small hollow tube 51, and the sealing assembly 70 is detachably connected to the inner wall of the other end of the small hollow tube 51.
The pressing assembly 60 includes: the support rod 61, the supporting block 62, the box body 63, the hydraulic cylinder 64, the pressure plate 65 and the filter hole 66;
the equal fixed mounting bracing piece 61 of one end both sides inner wall of small hollow tube 51, supporting shoe 62 fixed mounting is between two sets of bracing pieces 61, box body 63 fixed mounting is on supporting shoe 62, pneumatic cylinder 64 fixed mounting is on the inner wall of box body 63, piston rod fixed mounting clamp plate 65 is passed through to the output of pneumatic cylinder 64, clamp plate 65 sliding connection is in the inner chamber of big hollow tube 41, and be equipped with the sealing washer between clamp plate 65 and the big hollow tube 41, a plurality of filtration pores 66 are seted up to the inner wall of clamp plate 65, the diameter of filtration pore 66 can be set for according to the demand.
The seal assembly 70 is: a first shutter 71, a screw 73;
a plurality of through holes 72 are formed in the inner wall of the first baffle 71, one end of the screw 73 is connected to the small hollow tube 51 through the through holes 72 in a threaded manner, and a sealing ring is arranged between the small hollow tube 51 and the first baffle 71.
Before the sludge enters the dehydration component 40, the sludge is conditioned in the sludge conditioning tank 20, and the specific dosage is as follows: PAM, which is 0.8-1.2 per mill of the mass percentage of the absolutely dry sludge; polyaluminum chloride accounting for 6-10% of the mass of the absolutely dry sludge. The sludge conditioning pool is covered and sealed and is provided with a stirring device so as to accelerate the sludge conditioning efficiency.
The working principle is as follows: firstly, continuously discharging sludge-water mixed liquor into a screw-stacked sludge concentrator 10, concentrating sludge by the screw-stacked sludge concentrator 10 under the driving action of a screw shaft and depending on the continuous change of gaps among laminated sheets to realize sludge-water separation, feeding the concentrated sludge-water mixed liquor into a sludge conditioning tank, and conveying a sludge conditioner to a dehydration component 40 for dehydration through a sludge pump 30 after conditioning by using a sludge conditioner which is generally polyaluminium chloride, quicklime, PAM and the like;
the working principle of the dewatering assembly 40 is as follows:
the method comprises the following steps: starting a group of valves to enable the conditioned sludge to flow into a group of small hollow pipes 51 through a group of pipelines 43 until the amount of the sludge in the small hollow pipes 51 reaches a proper amount, and at the moment, moving a pressure plate 65 into the small hollow pipes 51 through a hydraulic cylinder 64 to enable the sludge in the small hollow pipes 51 to be extruded and filter-pressed, wherein the liquid after filter pressing flows out through a liquid discharge hole 42;
step two: after filter pressing, starting another group of valves to enable the conditioned sludge to flow into another group of small hollow pipes 51 through another group of pipelines 43, wherein the rest steps are consistent with the process in the first step;
step three: when the other filter pressing assembly 50 works, the screws on one filter pressing assembly 50 are taken down to realize the disassembly of the first baffle 71, after the disassembly, the sludge in the group of small hollow pipes 51 is taken away, and after the sludge is taken away, the first baffle 71 is installed to realize the alternate dehydration of the sludge.
In the embodiment, a sludge concentration tank is omitted, so that the problem of odor pollution caused by the sludge concentration tank is solved, and the problem of waste gas collection and treatment is avoided; the sludge dewatering treatment system can continuously operate, the sludge-water mixed liquid enters and exits at the same time, the sludge treatment efficiency is high, the water content of the sludge can be reduced to below 50%, and the sludge treatment capacity can be improved by 20%.
Example 2:
the utility model provides a sludge dewatering processing system, please refer to fig. 4, seal assembly 70 is: a second shutter 76, a drive plate 77 whose cross section is T-shaped;
a second baffle 76 is screwed on the inner wall of the other end of the small hollow tube 51, and a driving plate 77 is fixedly installed on one side of the second baffle 76.
The working principle of the dewatering assembly 40 is as follows:
the method comprises the following steps: starting a group of valves to enable the conditioned sludge to flow into a group of small hollow pipes 51 through a group of pipelines 43 until the amount of the sludge in the small hollow pipes 51 reaches a proper amount, and at the moment, moving a pressure plate 65 into the small hollow pipes 51 through a hydraulic cylinder 64 to enable the sludge in the small hollow pipes 51 to be extruded and filter-pressed, wherein the liquid after filter pressing flows out through a liquid discharge hole 42;
step two: after filter pressing, starting another group of valves to enable the conditioned sludge to flow into another group of small hollow pipes 51 through another group of pipelines 43, wherein the rest steps are consistent with the process in the first step;
step three: when the other filter pressing assembly 50 works, the driving plate 77 on the other filter pressing assembly 50 rotates to realize the disassembly of the second baffle plate 76, the sludge in the group of small hollow pipes 51 is taken away after the disassembly, and then the second baffle plate 76 is installed to realize the alternate dehydration of the sludge.
In the embodiment, a sludge concentration tank is omitted, so that the problem of odor pollution caused by the sludge concentration tank is solved, and the problem of waste gas collection and treatment is avoided; the sludge dewatering treatment system can continuously operate, the sludge-water mixed liquid enters and exits simultaneously, the sludge treatment efficiency is high, the water content of the sludge can be reduced to below 50%, and the sludge treatment capacity can be improved by 25%.
Example 3:
different from the embodiment 1, the dehydration component 40 of the sludge dehydration treatment system in the embodiment adopts a high-pressure plate-and-frame filter press, the sludge feeding mode is divided into 2 stages of low-pressure sludge feeding and high-pressure sludge feeding, the sludge feeding pressure of the low-pressure sludge feeding is controlled to be not more than 0.6MPa, and the sludge feeding time is 0.8-1.2h; controlling the mud feeding pressure to be not more than 1.2MPa and the mud feeding time to be 3.5-4.5h; the squeezing pressure is 1.8-2.0 MPa, which is 0.2-0.4MPa higher than that of the traditional plate-and-frame filter press, and the squeezing time is 0.8-1.2h. And the mud feeding stage and the squeezing stage are automatically switched by a PLC control system. Due to the change of the sludge feeding mode, the sludge feeding time is shortened, and the squeezing time is shortened due to the improvement of the squeezing pressure, so that the water content of the sludge can be reduced to be below 50%, the sludge squeezing efficiency is increased by more than 1 time, the water content of the sludge after the treatment of the common plate-and-frame filter press is generally not lower than 75%, and the water content of the sludge after the treatment of the belt filter press and the centrifugal dehydrator is generally not lower than 80%, therefore, the sludge dewatering efficiency can be greatly improved in the embodiment.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. A sludge dewatering treatment system, comprising:
a spiral-stacked sludge concentrator (10) for separating sludge and water in the sludge-water mixed liquid;
a sludge conditioning tank (20) for conditioning the separated sludge;
a dewatering assembly (40) for alternately dewatering the conditioned sludge;
a sludge pump (30) for delivering conditioned sludge to the dewatering assembly (40).
2. The sludge dewatering treatment system according to claim 1, wherein the screw-stacked sludge thickener (10) is connected with the sludge conditioning tank (20) through a connecting pipe, the sludge conditioning tank (20) is connected with the input end of the sludge pump (30) through a connecting pipe, the output end of the sludge pump (30) is fixedly connected with two sets of pipelines (43) through a three-way joint, and both ends of the dewatering component (40) are connected with the pipelines (43).
3. The sludge dewatering treatment system according to claim 1, wherein the dewatering assembly (40) includes:
the inner wall of the middle side of the bottom end of the large hollow pipe (41) is provided with a liquid discharge hole (42), and two sides of the top end of the large hollow pipe (41) are fixedly provided with pipelines (43);
the filter pressing assembly (50) is used for extruding and filtering the muddy water mixed liquid, and the filter pressing assemblies (50) are arranged on the inner walls of the two ends of the large hollow pipe (41).
4. A sludge dewatering treatment system according to claim 3, wherein the press assembly (50) comprises:
two groups of circular plates (52) are fixedly installed on the inner walls of the two ends of the large hollow pipe (41), the circular plates (52) are fixedly installed on the two ends of the small hollow pipe (51), and a pipeline (43) is fixedly installed on the inner wall of the top end of the small hollow pipe (51);
the extrusion component (60) is used for filtering the muddy water mixed liquid, and the extrusion component (60) is arranged on the inner wall of one end of the small hollow pipe (51);
and the sealing assembly (70) is used for blocking the muddy water mixed liquid, and the sealing assembly (70) is detachably connected to the inner wall of the other end of the small hollow pipe (51).
5. A sludge dewatering treatment system according to claim 4, wherein the pressing assembly (60) comprises:
the inner walls of two sides of one end of the small hollow pipe (51) are fixedly provided with the supporting rods (61);
the supporting block (62), the said supporting block (62) is fixedly mounted between two groups of support bars (61);
the box body (63), the said box body (63) is fixedly mounted on supporting shoe (62);
and the hydraulic cylinder (64) is fixedly arranged on the inner wall of the box body (63).
6. The sludge dewatering treatment system according to claim 5, wherein the pressing assembly (60) further includes:
the output end of the hydraulic cylinder (64) is fixedly provided with the pressure plate (65) through a piston rod, the pressure plate (65) is connected in the inner cavity of the large hollow pipe (41) in a sliding manner, and a sealing ring is arranged between the pressure plate (65) and the large hollow pipe (41);
the inner wall of the pressure plate (65) is provided with a plurality of filtering holes (66).
7. A sludge dewatering treatment system according to claim 4, wherein the sealing assembly (70) is:
the inner wall of the first baffle plate (71) is provided with a plurality of through holes (72);
the screw (73), the one end of screw (73) is through-hole (72) threaded connection on little hollow tube (51), and is equipped with the sealing washer between little hollow tube (51) and first baffle (71).
8. A sludge dewatering treatment system according to claim 4, wherein the sealing assembly (70) is:
the cross section of the second baffle plate (76) is T-shaped, and the second baffle plate (76) is in threaded connection with the inner wall of the other end of the small hollow pipe (51);
a driving plate (77), the driving plate (77) being fixedly mounted on one side of the second baffle plate (76).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222426928.9U CN218321106U (en) | 2022-09-14 | 2022-09-14 | Sludge dewatering processing system |
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| CN202222426928.9U CN218321106U (en) | 2022-09-14 | 2022-09-14 | Sludge dewatering processing system |
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