CN217895402U - Filtrate separation type spiral sludge dewatering machine - Google Patents
Filtrate separation type spiral sludge dewatering machine Download PDFInfo
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- CN217895402U CN217895402U CN202221660544.7U CN202221660544U CN217895402U CN 217895402 U CN217895402 U CN 217895402U CN 202221660544 U CN202221660544 U CN 202221660544U CN 217895402 U CN217895402 U CN 217895402U
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Abstract
The utility model provides a filtrate separating type spiral shell stacking sludge dewatering machine, wherein a filtrate tank is arranged at the bottom of a spiral shell stacking body, the filtrate tank is divided into two cavities, namely a concentration section filtrate collecting cavity and a dewatering section filtrate collecting cavity, by a partition plate, and a sludge concentration detection device is arranged in the dewatering section filtrate collecting cavity; the concentration section filtrate collection cavity and the dehydration section filtrate collection cavity are respectively connected with an external collecting pipe through a first outflow pipe and a second outflow pipe, and a first switching valve and a second switching valve are respectively arranged on the first outflow pipe and the second outflow pipe; a third outflow pipe is communicated with the second outflow pipe, and a third switching valve is arranged on the third outflow pipe. The device can real-time supervision filtrating solid content data and use this as the nimble follow-up processing mode of adjustment of benchmark through mud concentration detection equipment, can reduce dewatering equipment's work burden to a certain extent, improves work efficiency, promotes economic benefits, and the degree of automation of device is high, can alleviate the human input, improves the operation precision.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection equipment, concretely relates to spiral shell sludge dewaterer is folded to filtrating disconnect-type.
Background
The stacked spiral sludge dewatering machine mainly comprises a stirring flocculation box, a stacked spiral body, a driving device, a frame body and the like, wherein the stacked spiral body comprises a fixed ring, a movable ring, a spiral shaft, a screw rod, a gasket, a connecting plate and the like, the spiral shaft penetrates through the fixed ring and the movable ring, the movable ring is sleeved on the spiral shaft in a hollow mode, the fixed ring and the movable ring are assembled together to form a tiny filtering gap, sewage flows out of the filtering gap, the movable ring is driven to move between the fixed ring when the spiral shaft rotates, sludge particles between the filtering gaps can be removed, and the purpose of automatic cleaning is achieved.
During filtering, the front section of the laminated spiral body is a concentration part with lower cavity pressure, and the rear section of the laminated spiral body is a dehydration part with higher cavity pressure. Mud is concentrated the back at concentrated portion through gravity, is transported dehydration portion, and the in-process that advances is along with straining seam and pitch diminishes gradually to and back pressure board's the effect of blockking down produces very big internal pressure, and the volume constantly dwindles, reaches the purpose of abundant dehydration.
However, the solid content of the filtrate filtered from the two parts of the concentration part and the dehydration part is obviously different, usually, the solid content of the filtrate in the concentration part is low, and the solid content of the filtrate in the dehydration part is much higher, so if the two parts of the filtrate are not separated and directly mixed and discharged, the secondary treatment work of water is not facilitated, a large amount of filtrate with high solid content enters a treatment tank, so that the partial sludge is fully treated, the whole treatment efficiency is reduced, and the treatment cost is undoubtedly increased.
Chinese patent CN 205295123U discloses a stacked spiral sludge dewatering machine filtrate shunting device, wherein a partition plate is arranged in a filtrate collecting box, the partition plate divides the filtrate collecting box into two cavities, namely a high-concentration filtrate cavity and a low-concentration filtrate cavity, and the low-concentration filtrate cavity is communicated with a filtrate discharge port of the filtrate collecting box; a sludge pump and a high-low liquid level float switch are arranged in the high-concentration filtrate cavity. After the design, low-concentration filtrate can be directly discharged to a subsequent treatment link, high-concentration filtrate is discharged back to the sludge tank for continuous treatment after passing through the sludge pump, and the purpose of reducing the solid content is achieved through multiple cycles.
Although the device can improve the sewage treatment effect and the efficiency of sludge dewatering to a certain extent, and reduce the cost of subsequent treatment, the device also has some defects, and mainly the flexibility during treatment still needs to be improved, specifically: because the viscosity of different sewage is different and the requirements of different customers on the solid content in the filtrate are different, the simple default is that all the filtrate in the dewatering section needs to be subjected to secondary dewatering treatment unreasonably, for the sewage with the solid content not particularly high, the filtrate filtered after primary dewatering can completely enter a subsequent treatment end for corresponding treatment, and repeated dewatering treatment undoubtedly increases the equipment burden and the treatment cost; in addition, the problem of equipment aging needs to be considered, because even if sewage with low solid content is treated for a long time, when the laminated sludge dewatering equipment is put into use for about 6 months, the movable ring is abraded to a certain extent, the sludge leakage phenomenon is gradually serious, but the cost is obviously not controlled when the movable ring is directly replaced in the initial stage, and at the moment, filtrate filtered after the sewage is treated in the dewatering section cannot be directly mixed with filtrate flowing out of the concentration section to be discharged; therefore, generally speaking, the sewage is flexibly treated according to different sewage types, different equipment aging degrees and different specific requirements of different customers when the filtrate is separated, so that the equipment burden is reduced to the maximum extent, the treatment efficiency is improved, and unnecessary waste is avoided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the problem that exists among the prior art, provide a spiral shell sludge dewaterer is folded to filtrating disconnect-type, the whole degree of automation of device is high, and can adjust the mode of treatment of filtrating in real time according to the solid content size in the filtrating, and the flexibility of processing procedure is strong, and the practicality is higher.
The utility model has the following specific technical scheme: the filtrate separation type stacked spiral sludge dehydrator comprises a stirring flocculation box, a frame body and a stacked spiral body, wherein the stacked spiral body is arranged on the frame body, the stirring flocculation box is communicated with the stacked spiral body through a pipeline, a filtrate box is arranged at the bottom of the stacked spiral body, two cavities, namely a concentration section filtrate collection cavity and a dehydration section filtrate collection cavity, are separated from the filtrate box through a partition plate, and sludge concentration detection equipment is arranged in the dehydration section filtrate collection cavity; the concentration section filtrate collection cavity is connected with an external collecting pipe through a first outflow pipe, the dehydration section filtrate collection cavity is connected with the external collecting pipe through a second outflow pipe, and a first switching valve and a second switching valve are respectively arranged on the first outflow pipe and the second outflow pipe; a third outflow pipe is communicated with the second outflow pipe, and a third switching valve is arranged on the third outflow pipe.
Furthermore, the filtrate collecting cavity of the concentration section is correspondingly arranged below the concentration part of the stacked spiral body, and the filtrate collecting cavity of the dehydration section is correspondingly arranged below the dehydration part of the stacked spiral body.
Furthermore, a third outflow pipe is communicated with the second outflow pipe through a three-way joint, and a communication port of the third outflow pipe on the second outflow pipe is positioned between the second switching valve and the filtrate tank.
Furthermore, a sludge concentration detection device is arranged in the filtrate collection cavity of the concentration section.
Further, the outlet at the tail end of the third outflow pipe is communicated with the inside of the stirring flocculation box of the dehydrator through power equipment.
Further, the terminal outlet of the external collecting pipe is directly communicated with the external processing pool.
Furthermore, the sludge concentration detection equipment, the first switching valve, the second switching valve and the third switching valve are electrically connected with the master controller.
Compared with the prior art, the utility model has the advantages of as follows:
1. the filter liquor separation type spiral sludge dewatering machine is high in flexibility in the filter liquor treatment process, the filter liquor solid content data can be monitored in real time through the sludge concentration detection equipment, the next treatment mode can be flexibly adjusted on the basis of the filter liquor solid content data, when the filter liquor solid content in the filter liquor collection cavity of the dewatering section is larger than or equal to a standard value, the filter liquor flowing out of the filter liquor collection cavity of the dewatering section can be sent back to the dewatering machine again for secondary dewatering, and the filter liquor flowing out of the dewatering section is not sent into the dewatering machine for secondary dewatering like the filter liquor flowing out of the dewatering section in the existing equipment, so that the work burden of the dewatering equipment can be reduced to a certain extent, the work efficiency is improved, and the economic benefit is improved;
2. because the spiral shell sludge dewaterer is folded to filtrating disconnect-type that this application disclosed can real-time supervision filtrating solid content and carry out the regulation of mode according to specific numerical value, so even equipment appears ageing, has certain mud phenomenon of running, also can be very timely carry out effectual reply, need not be in ageing initial stage promptly for not increasing the follow-up processing degree of difficulty and just directly change the rotating ring, be favorable to saving cost more like this
3. The sludge concentration detection equipment and the three switching valves in the filtrate separation type stacked spiral sludge dewatering machine are uniformly controlled by the master controller, the critical parameters of opening and closing of the valves can be specifically adjusted according to the sewage property and the requirements of customers, the flexibility of the treatment process is further improved, and the automation degree of the device is high, so that the manual intervention in the treatment process is not needed, the labor input can be reduced, and the workload of operators can also be reduced;
4. also set up mud concentration detection equipment in concentrated section filtrating collection chamber in this application, can implement the solid rate that contains of filtrating in this cavity of monitoring to in time remind the staff to carry out the part change.
Drawings
FIG. 1 is a schematic front view of a filtrate separation type stack screw sludge dewatering machine;
FIG. 2 is a schematic top view of a filtrate separation type stacked screw sludge dewatering machine;
the system comprises a stirring flocculation tank 1, a frame body 2, a stacked spiral body 3, a filtrate tank 4, a partition plate 5, a concentration section filtrate collection cavity 6, a dehydration section filtrate collection cavity 7, sludge concentration detection equipment 8, a first outflow pipe 9, an external collecting pipe 10, a second outflow pipe 11, a first switching valve 12, a second switching valve 13, a third outflow pipe 14 and a third switching valve 15.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings, but not limited thereto, and all modifications or equivalent replacements of the technical solution of the present invention are included in the protection scope of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Example one
In order to solve the problem that the existing laminated spiral sludge dewatering machine cannot treat filtrates with different solid contents in a targeted manner in a highly flexible manner, the embodiment discloses a filtrate separation type laminated spiral sludge dewatering machine, which comprises a stirring flocculation tank 1, a frame body 2 and a laminated spiral body 3 (mainly comprising a spiral shaft with spiral blades, a motor for driving the spiral shaft to rotate and a filter disc group sleeved on the periphery of the spiral shaft, wherein the structure of the part is the prior art, and is not described herein), the laminated spiral body 3 is arranged on the frame body 2, the stirring flocculation tank 1 is communicated with the laminated spiral body 3 through a pipeline, sewage subjected to stirring flocculation or pre-concentration treatment enters the laminated spiral body 3 through the pipeline and is further dewatered by using the filter disc group, a filtrate tank 4 is arranged at the bottom of the laminated spiral body 3, two cavities are separated from the filtrate tank 4 by using a partition plate 5 in the filtrate tank 4, a concentrated filtrate collection cavity 6 correspondingly arranged below the laminated spiral body dewatering section, and a filtrate collection cavity 7 correspondingly arranged in the concentrated filtrate collection cavity 6 and a dewatering section 7 respectively, and a sludge concentration detection device 8 for detecting the solid content in real time is arranged in the filtrate collection cavity.
The concentration section filtrate collection cavity 6 is connected with an external collecting pipe 10 through a first outflow pipe 9, the dehydration section filtrate collection cavity 7 is connected with the external collecting pipe 10 through a second outflow pipe 11, and a first switching valve 12 and a second switching valve 13 are respectively arranged on the first outflow pipe 9 and the second outflow pipe 11.
A third outflow pipe 14 is connected to the second outflow pipe 11 and between the second switching valve 13 and the filtrate tank 4 through a three-way joint, a third switching valve 15 is arranged on the third outflow pipe 14, and an outlet at the tail end of the third outflow pipe 14 can be connected with power equipment such as a water pump and the like so as to re-introduce the sludge water with high solid content flowing out of the third outflow pipe 14 into the dehydrator for secondary dehydration.
The end outlet of the external collecting pipe 10 is directly communicated with an external treatment tank to carry out secondary treatment on the sewage.
The sludge concentration detection device 8, the first switching valve 12, the second switching valve 13 and the third switching valve 15 are all connected with the master controller, the sludge concentration detection device 8 feeds back the detected sludge concentration to the master controller, and the master controller controls the opening and closing of the first switching valve 12, the second switching valve 13 and the third switching valve 15 so as to adjust the outflow direction of the sewage.
The specific use flow of the device is as follows:
when the equipment is operated, the pressure of the front section cavity of the laminated spiral body is low, the pressure of the rear section cavity is high, the filtrate tank 4 is divided into two cavities, and in the sewage dehydration process, the filtrate with the low pressure of the front section cavity enters the filtrate collecting cavity 6 of the concentration section, and the filtrate with the high pressure of the rear section cavity enters the filtrate collecting cavity 7 of the dehydration section; the sludge concentration detection equipment 8 monitors solid contents of filtrates in the two cavities in real time, corresponding data are fed back to the master controller, when the sludge concentration detection equipment 8 in the filtrate collection cavity 7 at the dehydration section monitors that the solid contents of sewage in the cavities are lower than a set value (the set value can be set on the master controller according to the properties of different sludge and specific requirements of customers), the switching valve III 15 is controlled to be closed, the switching valve I12 and the switching valve II 13 are opened, and all filtrates in the two cavities are collected into the external collecting pipe 10 and then flow out of an external treatment pool from the outlet end of the collecting pipe to be subjected to subsequent secondary treatment; and when the solid content of the sewage in the dewatering section filtrate collection cavity 7 is larger than or equal to a set critical value, closing the second switching valve 13, opening the first switching valve 12 and the third switching valve 15, enabling the filtrate in the concentration section filtrate collection cavity 6 to flow out through the external collecting pipe 10, and enabling the filtrate in the dewatering section filtrate collection cavity 7 to flow out from the third outflow pipe 14 and then to be conveyed into the dewatering machine again through power equipment such as a pump for secondary dewatering treatment.
If the sludge concentration detection equipment 8 in the filtrate collection cavity 6 of the concentration section monitors that the solid content of the sewage in the cavity is higher than the set value of the system of the filtrate in the cavity set on the master controller, the equipment is proved to be abnormal, because the solid content of the sewage in the filtrate of the concentration section is lower in a normal state, the equipment is proved to be in a serious state due to abnormal numerical values, and related parts reach the service life limit, at this moment, the parts need to be replaced.
The structure greatly reduces the content of sludge in the subsequent filtrate collecting tank, improves the filtrate treatment efficiency, avoids resource waste, reduces the treatment cost, has high flexibility of the whole treatment process, can carry out real-time adjustment on the treatment mode according to different conditions, and has stronger practicability.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. The filtrate separation type stack spiral sludge dehydrator comprises a stirring flocculation box, a frame body and a stack spiral body, wherein the stack spiral body is arranged on the frame body, and the stirring flocculation box is communicated with the stack spiral body through a pipeline;
the concentrating section filtrate collecting cavity is connected with an external collecting pipe through a first outflow pipe, the dehydrating section filtrate collecting cavity is connected with the external collecting pipe through a second outflow pipe, and a first switching valve and a second switching valve are respectively arranged on the first outflow pipe and the second outflow pipe;
a third outflow pipe is communicated with the second outflow pipe, and a third switching valve is arranged on the third outflow pipe.
2. The filtrate separation type stacked spiral sludge dewatering machine according to claim 1, wherein the filtrate collection chamber of the concentration section is correspondingly arranged below the concentration part of the stacked spiral body, and the filtrate collection chamber of the dewatering section is correspondingly arranged below the dewatering part of the stacked spiral body.
3. The filtrate separation type spiral sludge dewatering machine as claimed in claim 1, wherein a third outflow pipe is communicated with the second outflow pipe through a three-way joint, and a communication port of the third outflow pipe on the second outflow pipe is located between the second switching valve and the filtrate tank.
4. The filtrate separation type stack spiral sludge dewatering machine of claim 1, wherein a sludge concentration detection device is provided in the filtrate collection chamber of the concentration section.
5. The filtrate separation type stack spiral sludge dehydrator according to claim 1, wherein an outlet at a terminal end of the third outflow pipe is communicated with the inside of the stirring flocculation tank of the dehydrator through a power device.
6. The filtrate separation type stack spiral sludge dewatering machine of claim 1, wherein the end outlet of the external collecting pipe is directly communicated with the external treatment tank.
7. The filtrate separation type stack spiral sludge dewatering machine of claim 4, wherein the sludge concentration detection device, the first switching valve, the second switching valve and the third switching valve are all electrically connected with a master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221660544.7U CN217895402U (en) | 2022-06-30 | 2022-06-30 | Filtrate separation type spiral sludge dewatering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221660544.7U CN217895402U (en) | 2022-06-30 | 2022-06-30 | Filtrate separation type spiral sludge dewatering machine |
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| Publication Number | Publication Date |
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| CN217895402U true CN217895402U (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221660544.7U Active CN217895402U (en) | 2022-06-30 | 2022-06-30 | Filtrate separation type spiral sludge dewatering machine |
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|---|---|
| CN (1) | CN217895402U (en) |
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- 2022-06-30 CN CN202221660544.7U patent/CN217895402U/en active Active
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