CN113929273A - Sludge dewatering device - Google Patents
Sludge dewatering device Download PDFInfo
- Publication number
- CN113929273A CN113929273A CN202111179111.XA CN202111179111A CN113929273A CN 113929273 A CN113929273 A CN 113929273A CN 202111179111 A CN202111179111 A CN 202111179111A CN 113929273 A CN113929273 A CN 113929273A
- Authority
- CN
- China
- Prior art keywords
- extrusion rod
- dewatering
- sludge dewatering
- sludge
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000001125 extrusion Methods 0.000 claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 239000002002 slurry Substances 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 230000018044 dehydration Effects 0.000 claims description 10
- 238000006297 dehydration reaction Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 230000001877 deodorizing effect Effects 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 description 7
- 238000003825 pressing Methods 0.000 description 6
- 229920004933 Terylene® Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/27—Filter bags
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a sludge dewatering device which comprises a dewatering seat, an extrusion rod and a water filtering bag, wherein the dewatering seat is provided with a dewatering groove with an opening at the upper end, the bottom of the dewatering groove is provided with a plurality of first drainage holes, the extrusion rod can be movably arranged in the dewatering groove along the vertical direction, the upper end of the extrusion rod extends out of the dewatering groove, a movable cavity is defined between the lower end of the extrusion rod and the bottom of the dewatering groove, a grouting channel is formed in the extrusion rod, one end of the grouting channel penetrates through the upper end of the extrusion rod to form an inlet, the other end of the grouting channel penetrates through the lower end of the extrusion rod to form an outlet, the water filtering bag is arranged at the lower end of the extrusion rod and is positioned in the movable cavity, and the water filtering bag is provided with a slurry inlet communicated with the outlet. According to the sludge dewatering device provided by the invention, after sludge slurry is dewatered, filter residues are left in the water filtering bag, so that the sludge slurry is prevented from entering the first drainage hole, and the first drainage hole is prevented from being blocked.
Description
Technical Field
The invention relates to the technical field of environment-friendly treatment devices, in particular to a sludge dewatering device.
Background
Sludge, which is a general term for various sediments, floaters and the like generated in different treatment processes in the treatment of water supply and urban domestic sewage, has various forms of water such as interstitial water, capillary water, surface adsorption water and internal bound water, so that the sludge has high water content. The purpose of sludge dewatering is to reduce the water content so as to reduce the volume of the sludge, and facilitate subsequent treatment, disposal and utilization. The existing sludge dewatering device is provided with a drain hole in a dewatering tank to realize the filter-pressing dewatering of sludge, the situation that the drain hole is blocked by filter residues is inevitable in the filter-pressing process, and the drain hole can be arranged to be extremely small in order to ensure the filtering effect, so that the blocked drain hole is difficult to clean.
Disclosure of Invention
The invention mainly aims to provide a sludge dewatering device, and aims to solve the problem that a drain hole blocked by the conventional sludge dewatering device is difficult to clean.
In order to achieve the above object, the present invention provides a sludge dewatering device, comprising:
the dewatering seat is provided with a dewatering groove with an opening at the upper end, and a plurality of first drainage holes are formed in the bottom of the dewatering groove;
the extrusion rod can be movably arranged in the dehydration tank along the up-down direction, the upper end of the extrusion rod extends out of the dehydration tank, a movable cavity is defined between the lower end of the extrusion rod and the bottom of the dehydration tank, a grouting channel is formed in the extrusion rod, one end of the grouting channel penetrates through the upper end of the extrusion rod to form an inlet, and the other end of the grouting channel penetrates through the lower end of the extrusion rod to form an outlet; and the number of the first and second groups,
and the water filtering bag is arranged at the lower end of the extrusion rod and is positioned in the movable cavity, and the water filtering bag is provided with a pulp inlet communicated with the outlet.
Optionally, a clamping ring is arranged at the pulp inlet of the water filtering bag, a clamping groove is formed in the lower end of the extrusion rod, and the clamping ring is clamped with the clamping groove, so that the water filtering bag is detachably arranged at the lower end of the extrusion rod.
Optionally, the material of the water filtering bag comprises polypropylene or terylene.
Optionally, the diapire of dehydration seat is equipped with the mounting groove, and is a plurality of first drain hole runs through the tank bottom setting of mounting groove, be equipped with in the mounting groove and remove the flavor piece.
Optionally, the odor removal member comprises an activated carbon filter mesh.
Optionally, the side wall of the dewatering tank is provided with a plurality of second drain holes.
Optionally, the second drainage hole extends obliquely outwards in a direction from top to bottom.
Optionally, the second drainage hole is filled with filter cotton.
Optionally, a check valve is arranged at the inlet of the grouting channel.
Optionally, the outer contour of the press bar is adapted to the inner contour of the dewatering trough.
According to the technical scheme, the sludge dewatering device is used specifically as follows, firstly, sludge slurry is filled from the inlet, flows through the grouting channel and is discharged from the outlet, then enters the drainage bag through the slurry inlet to complete the filling of the sludge slurry, then the extrusion rod is moved from top to bottom to extrude the drainage bag to filter and dewater the sludge slurry, the dewatered water is discharged from the first drainage hole through the drainage bag, and filter residue is left in the drainage bag, so that the dewatering of the sludge slurry can be completed. After the sludge slurry is dehydrated, the filter residue is left in the water filtering bag, so that the first drainage hole is prevented from being plugged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a sludge dewatering device according to the present invention;
fig. 2 is an enlarged schematic view of a portion a of fig. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Sludge, which is a general term for various sediments, floaters and the like generated in different treatment processes in the treatment of water supply and urban domestic sewage, has various forms of water such as interstitial water, capillary water, surface adsorption water and internal bound water, so that the sludge has high water content. The purpose of sludge dewatering is to reduce the water content so as to reduce the volume of the sludge, and facilitate subsequent treatment, disposal and utilization. The existing sludge dewatering device is provided with a drain hole in a dewatering tank to realize the filter-pressing dewatering of sludge, the situation that the drain hole is blocked by filter residues is inevitable in the filter-pressing process, and the drain hole can be arranged to be extremely small in order to ensure the filtering effect, so that the blocked drain hole is difficult to clean.
In view of the above, referring to fig. 1 and fig. 2, fig. 1 is a schematic structural view of an embodiment of a sludge dewatering device provided in the present invention, and fig. 2 is an enlarged schematic view of a portion a in fig. 1.
As shown in fig. 1, the sludge dewatering device 100 includes a dewatering base 1, a squeezing rod 2 and a water filtering bag 4, the dewatering base 1 has a dewatering tank 11 with an open upper end, a plurality of first drainage holes 111 are formed in the bottom of the dewatering tank 11, the squeezing rod 2 is movably installed in the dewatering tank 11 in the vertical direction, the upper end of the squeezing rod 2 extends out of the dewatering tank 11, a movable cavity 3 is defined between the lower end of the squeezing rod 2 and the bottom of the dewatering tank 11, a grouting channel 21 is formed in the squeezing rod 2, one end of the grouting channel 21 penetrates through the upper end of the squeezing rod 2 to form an inlet 211, the other end penetrates through the lower end of the squeezing rod 2 to form an outlet 212, the water filtering bag 4 is installed at the lower end of the squeezing rod 2 and located in the movable cavity 3, and the water filtering bag 4 has a slurry inlet 41 communicated with the outlet 212.
In the technical scheme of the invention, the sludge dewatering device 100 is used specifically as follows, firstly, sludge slurry is filled from the inlet 211, flows through the grouting channel 21 and is discharged from the outlet 212, then enters the water filtering bag 4 through the slurry inlet 41 to complete the filling of the sludge slurry, then the extrusion rod 2 is moved from top to bottom to extrude the water filtering bag 4 to filter-press and dewater the sludge slurry, the dewatered water is discharged from the first water discharge hole 111 through the water filtering bag 4, and filter residue is left in the water filtering bag 4, thus completing the dewatering of the sludge slurry. After the sludge slurry is dehydrated, the filter residue is left in the water filtering bag 4, so that the filter residue is prevented from entering the first drainage hole 111, and the first drainage hole 111 is prevented from being blocked.
The specific material of the water filtering bag 4 is not limited in the invention, and any material capable of filtering sludge can be used. Preferably, the material of the water filtering bag 4 comprises polypropylene fiber or terylene, the material of the water filtering bag 4 can be polypropylene fiber or terylene, the polypropylene fiber and terylene have good filtering performance and are durable, and filter residues can be kept in the water filtering bag 4 sufficiently.
Further, the bottom wall of the dehydration seat 1 is provided with a mounting groove 12, the first drainage hole 111 is arranged to penetrate through the bottom of the mounting groove 12, and a smell removing part 121 is arranged in the mounting groove 12. Since the sludge slurry has odor which is an inherent characteristic, the extracted water also has odor, and the odor is diffused more rapidly due to the strong liquidity of the extracted water, so that the timely removal of the odor in the extracted water is particularly necessary. In the embodiment of the present invention, by disposing the odor removing member 121 corresponding to the first drain hole 111, the odor removing member 121 can remove odor from the water flowing through the first drain hole 111, so as to facilitate the subsequent collection and secondary treatment of the removed water.
Preferably, the odor removing part 121 includes an activated carbon filter screen, and the activated carbon filter screen has high-efficiency adsorption performance and good effect of removing odor in water. More preferably, the active carbon filter screen adopts a honeycomb structure filter screen, so that the effect of removing odor in water is better; more preferably, the activated carbon filter screen is made of shell activated carbon, so that the specific surface area is large, and the effect of removing odor in water is better.
In addition, the odor removing member 121 may also be a resin filter screen, or may also be another odor removing member 121 with an effect of removing odor in water, which is not described in detail herein.
Furthermore, the side wall of the dewatering tank 11 is provided with a plurality of second drain holes 112, and since the extrusion rod 2 is movably installed in the dewatering tank 11, a gap 5 is inevitably formed between the side wall of the extrusion rod 2 and the side wall of the dewatering tank 11, and thus the water removed part flows out through the gap 5. The second drain hole 112 is provided to facilitate the drainage of the water flowing out through the gap 5 from the dewatering tub 11 in time.
Preferably, the second drainage hole 112 is formed to extend obliquely outward from top to bottom, so as to guide the water and drain the water more quickly.
Furthermore, the second water discharge hole 112 is filled with filter cotton 112a, harmful impurities such as pathogenic microorganisms and parasitic ova can be contained in the water separated from the sludge slurry, and the filter cotton 112a is arranged, so that the harmful impurities such as pathogenic microorganisms and parasitic ova can be remained on the filter cotton 112a when the water flows out through the second water discharge hole 112, which is beneficial to reducing the harmful impurities in the water and is convenient for long-time storage of the subsequent water.
Further, a check valve 211a is provided at an inlet 211 of the grouting channel 21, the check valve 211a having a function of preventing a reverse flow of fluid, and by providing the check valve 211a at the inlet 211, the check valve 211a can effectively prevent sludge or removed water from being discharged from the inlet 211 through the grouting channel 21 during the squeezing of the filtered water bag 4 by the squeezing rod 2.
The outer contour of the extrusion rod 2 is matched with the inner contour of the dewatering tank 11, so that the extrusion rod 2 can slide up and down along the side wall of the dewatering tank 11, the movement of the extrusion rod 2 is smoother, and the dewatering efficiency is improved.
It should be noted that the sludge dewatering device 100 further includes a hydraulic cylinder (not shown in the drawings), an output shaft of the hydraulic cylinder is connected to the extrusion rod 2, and is used for driving the extrusion rod 2 to move in the up-and-down direction, the driving force of the hydraulic cylinder is large, and the filter-pressing dewatering effect is better.
As shown in fig. 2, a clamping ring 411 is arranged at a pulp inlet 41 of the water filtration bag 4, a clamping groove 22 is arranged at the lower end of the extrusion rod 2, and the clamping ring 411 is clamped with the clamping groove 22, so that the water filtration bag 4 is detachably arranged at the lower end of the extrusion rod 2, after each filter pressing dehydration, the water filtration bag 4 can be detached, and after filter residues are taken out, the filter residues are cleaned, so that the next dehydration is facilitated, and the production cost is reduced. The invention is not limited to the specific way that the water filtering bag 4 can be detachably arranged at the lower end of the extrusion rod 2, and the mode that the clamping ring 411 is combined with the clamping groove 22 can be, and the following modes can also be adopted: the pulp inlet 41 of the water filtering bag 4 is provided with a threaded ring, the lower end of the extrusion rod 2 is provided with a threaded hole, and the threaded ring is in threaded connection with the threaded hole.
It should be noted that, in order to make the connection between the water filtration bag 4 and the clamping ring 411 more secure, a fastening ring 412 is sleeved outside the slurry inlet 41 of the water filtration bag 4, and the fastening ring 412 is used for fastening the water filtration bag 4 to the clamping ring 411.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A sludge dewatering device, comprising:
the dewatering seat is provided with a dewatering groove with an opening at the upper end, and a plurality of first drainage holes are formed in the bottom of the dewatering groove;
the extrusion rod can be movably arranged in the dehydration tank along the up-down direction, the upper end of the extrusion rod extends out of the dehydration tank, a movable cavity is defined between the lower end of the extrusion rod and the bottom of the dehydration tank, a grouting channel is formed in the extrusion rod, one end of the grouting channel penetrates through the upper end of the extrusion rod to form an inlet, and the other end of the grouting channel penetrates through the lower end of the extrusion rod to form an outlet; and the number of the first and second groups,
and the water filtering bag is arranged at the lower end of the extrusion rod and is positioned in the movable cavity, and the water filtering bag is provided with a pulp inlet communicated with the outlet.
2. The sludge dewatering device according to claim 1, wherein a clamping ring is provided at the slurry inlet of the water filtration bag, a clamping groove is provided at the lower end of the extrusion rod, and the clamping ring is clamped with the clamping groove, so that the water filtration bag is detachably provided at the lower end of the extrusion rod.
3. The sludge dewatering device of claim 1, wherein the material of the water filtration bag comprises polypropylene or polyester.
4. The sludge dewatering apparatus of claim 1, wherein the dewatering base has a bottom wall provided with a mounting groove, and a plurality of the first drainage holes are provided through a bottom of the mounting groove, and a deodorizing member is provided in the mounting groove.
5. The sludge dewatering apparatus of claim 4, wherein the odor removal member comprises an activated carbon filter screen.
6. The sludge dewatering apparatus of claim 1, wherein the side wall of the dewatering tank is provided with a plurality of second drain holes.
7. The sludge dewatering apparatus according to claim 6, wherein the second drain hole is provided to extend obliquely outward in a direction from top to bottom.
8. The sludge dewatering apparatus of claim 6, wherein the second drain hole is filled with filter cotton.
9. The sludge dewatering apparatus of claim 1, wherein a check valve is provided at an inlet of the grouting passage.
10. The sludge dewatering apparatus of claim 1, wherein the outer profile of the squeeze bar is adapted to the inner profile of the dewatering trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111179111.XA CN113929273A (en) | 2021-10-09 | 2021-10-09 | Sludge dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111179111.XA CN113929273A (en) | 2021-10-09 | 2021-10-09 | Sludge dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113929273A true CN113929273A (en) | 2022-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111179111.XA Pending CN113929273A (en) | 2021-10-09 | 2021-10-09 | Sludge dewatering device |
Country Status (1)
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| CN (1) | CN113929273A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05318189A (en) * | 1992-05-19 | 1993-12-03 | Nagaoka:Kk | Pressurization type dehydrating device for sludge treatment and sludge treatment |
| JP2017009474A (en) * | 2015-06-24 | 2017-01-12 | スバル興業株式会社 | Dewaterer |
| CN107902867A (en) * | 2017-12-28 | 2018-04-13 | 福建省农业科学院农业工程技术研究所 | The quick desiccation apparatus of pig farm sludge and its method of work |
| CN108839371A (en) * | 2018-08-01 | 2018-11-20 | 长兴曼尔申机械科技有限公司 | A kind of hydraulic side extruding screw discharge device for dehydrating sladge waste |
| CN110902997A (en) * | 2019-12-02 | 2020-03-24 | 长兴昊太机械有限公司 | Full-automatic filter pressing equipment based on ore mud |
| CN212713200U (en) * | 2020-06-18 | 2021-03-16 | 贵州路桥集团有限公司 | Waste slurry treatment equipment for bridge construction |
-
2021
- 2021-10-09 CN CN202111179111.XA patent/CN113929273A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05318189A (en) * | 1992-05-19 | 1993-12-03 | Nagaoka:Kk | Pressurization type dehydrating device for sludge treatment and sludge treatment |
| JP2017009474A (en) * | 2015-06-24 | 2017-01-12 | スバル興業株式会社 | Dewaterer |
| CN107902867A (en) * | 2017-12-28 | 2018-04-13 | 福建省农业科学院农业工程技术研究所 | The quick desiccation apparatus of pig farm sludge and its method of work |
| CN108839371A (en) * | 2018-08-01 | 2018-11-20 | 长兴曼尔申机械科技有限公司 | A kind of hydraulic side extruding screw discharge device for dehydrating sladge waste |
| CN110902997A (en) * | 2019-12-02 | 2020-03-24 | 长兴昊太机械有限公司 | Full-automatic filter pressing equipment based on ore mud |
| CN212713200U (en) * | 2020-06-18 | 2021-03-16 | 贵州路桥集团有限公司 | Waste slurry treatment equipment for bridge construction |
Non-Patent Citations (1)
| Title |
|---|
| 黄树杰等: "《环境水处理药剂》", 31 August 2019, 广东高等教育出版社 * |
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Application publication date: 20220114 |