CN215250342U - Sludge double-layer mechanical dewatering system - Google Patents
Sludge double-layer mechanical dewatering system Download PDFInfo
- Publication number
- CN215250342U CN215250342U CN202120677916.6U CN202120677916U CN215250342U CN 215250342 U CN215250342 U CN 215250342U CN 202120677916 U CN202120677916 U CN 202120677916U CN 215250342 U CN215250342 U CN 215250342U
- Authority
- CN
- China
- Prior art keywords
- sludge
- outlet
- inlet
- crusher
- filter press
- 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.)
- Active
Links
Images
Abstract
The utility model provides a double-deck mechanical dewatering system of mud, energy consumption is low, dehydration efficiency is high, the sludge treatment cost is low, the press filtrate is easy to handle. The outlet of the primary pulp sludge tank is connected with the sludge inlet of the plate-and-frame filter press through a sludge pipeline; a primary pulp stirrer is arranged in the primary pulp sludge tank; the outlet of the medicament mixing box is connected with a sludge pipeline through a medicament feeding pipeline; a medicament stirrer is arranged in the medicament mixing box; the outlet of the industrial water tank is connected with the squeezing inlet and the cleaning inlet of the plate-and-frame filter press through pipelines; the outlet of the plate-and-frame filter press is connected with the inlet of the sludge crusher I; an outlet of the sludge crusher I is connected with an inlet of the spiral distributing device; the outlet of the spiral distributor is connected with the inlet of the belt dehydrator, and the outlet of the belt dehydrator is connected with the inlet of the sludge crusher II; and the outlet of the sludge crusher II is connected with a dry sludge bin.
Description
Technical Field
The utility model relates to a double-deck mechanical dewatering system of mud mainly is applied to industrial sludge, municipal sludge, especially at the dehydration of papermaking trade activated sludge.
Background
Since the 90 s of the 20 th century, China produces over 1 hundred million tons of sludge every year. The sludge accumulated in large quantity not only occupies a large amount of land area, but also contains a large amount of pathogenic bacteria, parasites, pathogenic microorganisms, heavy metals such as arsenic, copper, chromium, mercury and the like, dioxin, radioactive elements and other poisonous and harmful substances which are difficult to degrade, and the sludge has high water content and large volume, thereby bringing difficulties to stacking and transportation, and if the municipal sludge is not properly or standardly treated, such as random disposal, abuse in farmlands and the like, the sludge can cause extremely serious threats to the ecological environment.
The sludge dewatering and volume reduction are both an important link in the sludge nursing process and the most difficult link to realize. The mechanical dehydration method commonly used in domestic sewage treatment plants can only reduce the water content of the sludge to about 80 percent, and a large amount of water brings serious difficulties for the subsequent treatment of the sludge. If the heat drying method is directly adopted to remove water, huge energy consumption is consumed, and the sludge treatment cost is high.
The water content of the sludge is divided into an external water content and an internal water content. Because the internal moisture in the sludge is combined in the cells, the traditional dehydration technology such as a belt filter press, a centrifugal filter press and the like can only reduce the moisture content of the sludge to about 80 percent. Common mechanical dewatering modes commonly used in China are belt filter press dewatering and screw press centrifuge dewatering. Both of these machines convert sewage having an initial concentration of about 97% water content into sludge having a water content of about 80% by first-stage press filtration.
The belt filter press has poor site environment, large odor and moisture, and is easy to cause secondary pollution; the spiral squeezing centrifuge has relatively high power consumption, and generally, the power of a motor needs about 60kW when 100t/d of sludge is processed. In addition, the water content of the treated sludge can only reach about 80 percent, and the requirement of the sludge in a boiler for incineration cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a double-deck mechanical dewatering system of mud that structural design is reasonable, the energy consumption is low, dehydration efficiency is high, the sludge treatment is with low costs, the press filtrate is easy to handle.
The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a double-deck mechanical dewatering system of mud which characterized in that: the system comprises a primary pulp sludge pool, a plate-and-frame filter press, a first sludge crusher, a primary pulp stirrer, a spiral distributor, a belt type dehydrator, a second sludge crusher, a dry sludge bin, a medicament mixing box, a medicament stirrer and an industrial water tank; the outlet of the primary pulp sludge tank is connected with the sludge inlet of the plate-and-frame filter press through a sludge pipeline; a primary pulp stirrer is arranged in the primary pulp sludge tank; the outlet of the medicament mixing box is connected with a sludge pipeline through a medicament feeding pipeline; a medicament stirrer is arranged in the medicament mixing box; the outlet of the industrial water tank is connected with the squeezing inlet and the cleaning inlet of the plate-and-frame filter press through pipelines; the outlet of the plate-and-frame filter press is connected with the inlet of the sludge crusher I; an outlet of the sludge crusher I is connected with an inlet of the spiral distributing device; the outlet of the spiral distributor is connected with the inlet of the belt dehydrator, and the outlet of the belt dehydrator is connected with the inlet of the sludge crusher II; and the outlet of the sludge crusher II is connected with a dry sludge bin.
The utility model discloses sludge pipeline on install mud screw pump.
The utility model discloses the medicine-adding pipeline on install the pipeline mixer and measure and add the medicine.
The utility model discloses install the diaphragm squeeze pump on the pipeline that industrial water tank export and plate and frame filter press squeeze access connection.
The utility model discloses install the washing water pump on the pipeline that industrial water tank export and plate and frame filter press wash access connection.
The utility model discloses still include band conveyer one, the access connection of band conveyer one and sludge crusher one is passed through in the export of plate and frame filter press.
The utility model discloses still include screw conveyer, screw conveyer and spiral distributor's access connection is passed through in the export of sludge crusher one.
The utility model discloses still include band conveyer two and band conveyer three, the export of sludge crusher is passed through band conveyer two and is connected with band conveyer three, and band conveyer three is connected with dry mud feed bin.
Compared with the prior art, the utility model, have following advantage and effect:
1. in the initial stage of sludge dehydration, namely the stage of dehydrating 92-97% of water-containing sewage to 55-65% of water-containing sludge, a mechanical filter pressing mode is adopted, so that heat energy is not consumed, and the energy consumption is low; in the deep sludge dewatering stage, namely dewatering sludge with 55-65% of water content to sludge with 45-55% of water content, a multi-section V-shaped high-pressure belt type dewatering machine mode is adopted. The double-layer mechanical sludge dewatering process makes full use of the advantages that a high-pressure diaphragm plate-and-frame filter press is high in dewatering efficiency in a low-concentration sludge stage, and a belt type dewatering machine can effectively and continuously dewater in a high-concentration sludge stage, so that energy consumption is greatly reduced, and sludge dewatering cost is reduced.
2. The single ton sludge treatment cost is low. The operation cost of 80 percent moisture per ton of single-ton sludge can be as low as 40.95 yuan/ton, which is far lower than the current domestic mainstream sludge deep dehydration operation cost. The detailed sludge cost analysis is shown in the following table (taking the sludge treatment capacity of 1000t/d as an example):
3. the double-layer mechanical dehydration process is used for direct granulation (the granularity of the outlet of the belt type dehydrator is less than 10mm after being crushed by a crusher), and favorable conditions are created for subsequent in-furnace incineration, power generation and resource utilization.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1, the embodiment of the utility model provides a include magma sludge impoundment 1, mud screw pump 2, plate and frame filter press 3, band conveyer 4, sludge crusher 5, magma agitator 6, screw conveyer 7, spiral distributor 8, belt dewaterer 9, two 10 of sludge crusher, two 11 of band conveyer, three 12 of band conveyer, dry sludge storage bin 13, medicament mixing box 14, medicament agitator 15, pipeline mixer 16, measurement dosing pump 17, industrial water tank 18, diaphragm squeeze pump 19, washing water pump 20.
The outlet of the primary pulp sludge pool 1 is connected with the sludge inlet of the plate-and-frame filter press 3 through a sludge pipeline, and a sludge screw pump 2 and a corresponding matched valve are arranged on the sludge pipeline. A primary pulp stirrer 6 is arranged in the primary pulp sludge tank 1 and used for mixing and stirring the primary pulp sludge.
The outlet of the agent mixing box 14 is connected with a sludge pipeline through a dosing pipeline, and a pipeline mixer 16, a metering dosing pump 17 and corresponding matched valves are arranged on the dosing pipeline. A medicine stirrer 15 is installed in the medicine mixing box 14 for mixing and stirring the medicine.
The outlet of the industrial water tank 18 is connected with the squeezing inlet of the plate-and-frame filter press 3 through a pipeline, and a diaphragm squeezing pump 19 and corresponding matched valves are arranged on the pipeline; and the outlet of the industrial water tank 18 is connected with the cleaning inlet of the plate-and-frame filter press 3 through a pipeline, and a cleaning water pump 20 and a corresponding matched valve are arranged on the pipeline.
The outlet of the plate-and-frame filter press 3 is connected with the inlet of a sludge crusher 5 through a belt conveyor 4. The plate-and-frame filter press 3 is a high-pressure diaphragm plate-and-frame filter press.
The outlet of the sludge crusher I5 is connected with the inlet of the spiral distributor 8 through the spiral conveyor 7.
The outlet of the spiral distributor 8 is directly connected with the feed inlet of the belt dehydrator 9, and the outlet of the belt dehydrator 9 is connected with the inlet of the sludge crusher two 10. The belt dehydrator 9 is a multi-section V-shaped high-pressure strong belt dehydrator, adopts a flexible strong metal pressurizing belt, and has working tension not less than 15 MPa. The spiral distributor 8 is a double-shaft spiral distributor.
An outlet of the second sludge crusher 10 is connected with a third belt conveyor 12 through a second belt conveyor 11; and the third belt conveyor 12 is connected with a dry sludge bin 13.
The belt conveyor may be replaced with a screw conveyor or a buried scraper conveyor.
The working method of the utility model comprises the following steps:
(1) conveying a raw sludge solution with water content of 92% -97% of a sewage treatment plant to a raw sludge tank 1 for storage, adding PAC or PAM agents to a raw sludge outlet pipeline for tempering, and not adding agents such as lime which have great influence on the heat value of sludge; the addition amount of PAC is 2-4% of the absolute dry amount of sludge, and the addition amount of PAM is 1-2 per mill of the absolute dry amount of sludge.
(2) Conveying sludge with water content of 92% -97% in a primary pulp sludge pool 1 to a plate-and-frame filter press 3 through a sludge screw pump 2 for filter pressing and dehydration, conveying the sludge to a sludge crusher 5 for crushing through a belt conveyor I4 after the sludge is dehydrated to water content of 55% -65%, and feeding the crushed sludge into a primary pulp stirrer 6;
(3) transferring sludge from an outlet of the primary pulp stirrer 6 through a screw conveyor 7, uniformly distributing the sludge to a belt type dehydrator 9, performing multi-section V-shaped high-pressure extrusion dehydration until the water content is 45-55%;
(4) the dry sludge after the belt type dewatering machine 9 is crushed to be less than 10mm and is conveyed to a dry sludge bin 13 for storage.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (8)
1. The utility model provides a double-deck mechanical dewatering system of mud which characterized in that: the system comprises a primary pulp sludge pool, a plate-and-frame filter press, a first sludge crusher, a primary pulp stirrer, a spiral distributor, a belt type dehydrator, a second sludge crusher, a dry sludge bin, a medicament mixing box, a medicament stirrer and an industrial water tank; the outlet of the primary pulp sludge tank is connected with the sludge inlet of the plate-and-frame filter press through a sludge pipeline; a primary pulp stirrer is arranged in the primary pulp sludge tank; the outlet of the medicament mixing box is connected with a sludge pipeline through a medicament feeding pipeline; a medicament stirrer is arranged in the medicament mixing box; the outlet of the industrial water tank is connected with the squeezing inlet and the cleaning inlet of the plate-and-frame filter press through pipelines; the outlet of the plate-and-frame filter press is connected with the inlet of the sludge crusher I; an outlet of the sludge crusher I is connected with an inlet of the spiral distributing device; the outlet of the spiral distributor is connected with the inlet of the belt dehydrator, and the outlet of the belt dehydrator is connected with the inlet of the sludge crusher II; and the outlet of the sludge crusher II is connected with a dry sludge bin.
2. The sludge double-layer mechanical dewatering system according to claim 1, characterized in that: and a sludge screw pump is arranged on the sludge pipeline.
3. The sludge double-layer mechanical dewatering system according to claim 1, characterized in that: the dosing pipeline is provided with a pipeline mixer and a metering dosing device.
4. The sludge double-layer mechanical dewatering system according to claim 1, characterized in that: and a diaphragm squeeze pump is arranged on a pipeline connecting the outlet of the industrial water tank and the squeezing inlet of the plate-and-frame filter press.
5. The sludge double-layer mechanical dewatering system according to claim 1, characterized in that: and a cleaning water pump is arranged on a pipeline connecting the outlet of the industrial water tank and the cleaning inlet of the plate-and-frame filter press.
6. The sludge double-layer mechanical dewatering system according to claim 1, characterized in that: the filter press further comprises a first belt conveyor, and an outlet of the plate-and-frame filter press is connected with an inlet of the first sludge crusher through the first belt conveyor.
7. The sludge double-layer mechanical dewatering system according to claim 1, characterized in that: the sludge crusher also comprises a screw conveyor, and an outlet of the sludge crusher I is connected with an inlet of the spiral distributor through the screw conveyor.
8. The sludge double-layer mechanical dewatering system according to claim 1, characterized in that: the sludge crusher also comprises a belt conveyor II and a belt conveyor III, wherein the outlet of the sludge crusher II is connected with the belt conveyor III through the belt conveyor II, and the belt conveyor III is connected with a dry sludge bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120677916.6U CN215250342U (en) | 2021-04-02 | 2021-04-02 | Sludge double-layer mechanical dewatering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120677916.6U CN215250342U (en) | 2021-04-02 | 2021-04-02 | Sludge double-layer mechanical dewatering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215250342U true CN215250342U (en) | 2021-12-21 |
Family
ID=79507293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120677916.6U Active CN215250342U (en) | 2021-04-02 | 2021-04-02 | Sludge double-layer mechanical dewatering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215250342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114940569A (en) * | 2022-05-26 | 2022-08-26 | 马鞍山钢铁股份有限公司 | Drying and resource utilization method for oil-containing hot-rolled sludge |
-
2021
- 2021-04-02 CN CN202120677916.6U patent/CN215250342U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114940569A (en) * | 2022-05-26 | 2022-08-26 | 马鞍山钢铁股份有限公司 | Drying and resource utilization method for oil-containing hot-rolled sludge |
| CN114940569B (en) * | 2022-05-26 | 2023-10-27 | 马鞍山钢铁股份有限公司 | Oil-containing hot-rolled sludge drying and resource utilization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102249498B (en) | Biochemical treatment method for waste water from small and medium-sized starch factories | |
| CN103253842A (en) | Sludge deep dewatering treatment system and process | |
| CN108503181B (en) | Harmless integrated treatment method for oily sludge | |
| CN202415341U (en) | Device capable of integrating high-pressure dehydration, drying and deodorization for sludge | |
| CN215250342U (en) | Sludge double-layer mechanical dewatering system | |
| KR100953061B1 (en) | An apparatus and method of dehydrating treatment in high moisture content sludge | |
| CN112608006A (en) | System for cooperative treatment of food waste and municipal sludge and operation process | |
| CN203187511U (en) | Deep sludge dewatering treatment system | |
| Hansen et al. | Operational experiences from a sludge recovery plant | |
| CN101665305B (en) | Method for processing straw-pulp-papermaking wastewater by using combined UASB plus A/O technique | |
| CN215250360U (en) | Sludge combined drying treatment system | |
| CN213113030U (en) | Low-temperature dried sludge treatment system for deep dehydration all-in-one machine | |
| CN214457569U (en) | Sludge dewatering mummification processing system | |
| CN201553674U (en) | Band-type sludge thickening and dewatering machine | |
| CN212790875U (en) | Production facility of waste cloth leather sludge treatment in coordination | |
| CN201031177Y (en) | Anaerobic reactor for processing high solid slag organic wastewater | |
| CN204824568U (en) | Mud decrement processing system | |
| CN209854446U (en) | Device for treating black liquor | |
| CN204022626U (en) | Paper waste recycling treatment system | |
| CN209752351U (en) | Cold rolling cleaning section waste liquid treatment system | |
| CN111138059A (en) | Printing and dyeing sludge dewatering method | |
| CN111774415A (en) | Sewage sludge, garbage and excrement slag based co-treatment method and system | |
| CN101525440B (en) | Preparation method of high molecular compound polyacrylamide flocculant | |
| CN204417305U (en) | A kind of high speed sludge treating system | |
| CN204151211U (en) | A kind of mud is used for the ridge grain seeding treatment system of dry-process rotary kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |