CN110615592A - Sludge treatment equipment - Google Patents

Sludge treatment equipment Download PDF

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Publication number
CN110615592A
CN110615592A CN201910984797.6A CN201910984797A CN110615592A CN 110615592 A CN110615592 A CN 110615592A CN 201910984797 A CN201910984797 A CN 201910984797A CN 110615592 A CN110615592 A CN 110615592A
Authority
CN
China
Prior art keywords
sludge
pipeline
section
mixing
pump
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
Application number
CN201910984797.6A
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Chinese (zh)
Inventor
赵向勇
颉春春
田建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inner Mongolia Shuoda Zhishui Ecological Technology Co Ltd
Original Assignee
Inner Mongolia Shuoda Zhishui Ecological Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inner Mongolia Shuoda Zhishui Ecological Technology Co Ltd filed Critical Inner Mongolia Shuoda Zhishui Ecological Technology Co Ltd
Priority to CN201910984797.6A priority Critical patent/CN110615592A/en
Publication of CN110615592A publication Critical patent/CN110615592A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents

Abstract

The invention relates to sludge treatment equipment which comprises a sludge storage tank, a flushing machine, a cutting machine, a sludge inlet pump, a mixing and stirring tank, a dosing device, a dewatering device, a compression roller and a rotary conveyor, wherein the sludge storage tank is connected with the flushing machine; a sludge outlet of the sludge storage tank is connected to the cutting machine through a first pipeline, and sludge enters the cutting machine for cutting; cutting machine mud exit linkage to mix the stirring pond, set up between second pipeline and third pipeline advance the dredge pump, mix the stirring pond and connect charge device, sludge transfer to dewatering device after adding medicine and mixing the stirring dewaters, the export of driping hopper is provided with multistage compression roller, and the roll-in through multistage compression roller is further dehydrated, passes through the scraper in the exit of final compression roller and scrapes the mud product and carry to the mud product collection device in through the rotary conveyor.

Description

Sludge treatment equipment
Technical Field
The invention relates to the technical field of sludge treatment, in particular to sludge treatment equipment.
Background
The sludge is solid waste generated in the sewage treatment process, and the domestic sewage treatment amount and treatment degree are continuously enlarged and improved along with the acceleration of the modern life rhythm in recent years, and the generated sludge amount is increasingly increased. However, since the treatment investment and operation cost of sludge are very large, the cost for sludge treatment is high in the operation cost of a sewage treatment plant, and a heavy burden is imposed on the sewage treatment plant. Meanwhile, sewage sludge contains a large amount of organic matters and nutrient substances, and also has harmful costs such as heavy metals, bacteria, parasites and the like, so that in order to prevent secondary pollution caused by sludge and ensure the treatment effect of a sewage treatment plant, the treatment process of sewage sludge needs to be optimized.
Most of sludge treatment methods in the prior art are natural airing, and although the natural airing method is low in cost, odor and flies around airing fields can be caused to breed in the process of naturally airing sludge.
In addition, in some prior art, steam is generally adopted as a heat source in the drying process of the sludge, so that the energy consumption is high, the operation cost is high, and the high-temperature drying also has the risk of dust separation explosion.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide sludge treatment equipment which is simple in structure, can avoid the risk of dust explosion in the high-temperature drying process, can reduce the energy consumption of the whole sludge treatment system and reduce the water content of sludge; and the processing cost is low, and the installation is convenient. The invention can be used in large-scale sludge treatment occasions, the water content of the treated sludge is effectively reduced, and the treated sludge can be used for incineration power generation, thereby realizing the harmless treatment of the sludge.
The technical scheme of the invention is as follows:
a sludge treatment device comprises a sludge storage tank, a cutting machine, a sludge inlet pump, a mixing and stirring tank, a dosing device, a dewatering device, a compression roller and a rotary conveyor;
the sludge storage tank is provided with a sludge outlet of the sludge storage tank, the sludge outlet of the sludge storage tank is connected to the cutting machine through a first pipeline, and sludge enters the cutting machine for cutting; a sludge outlet of the cutting machine is connected to the mixing and stirring tank through a second pipeline and a third pipeline, the sludge inlet pump is arranged between the second pipeline and the third pipeline, and the cut sludge is conveyed to the mixing and stirring tank through the sludge inlet pump; mix the stirring pond and connect charge device, charge device through add the medicine pump with the medicine add extremely mix the stirring pond and carry out intensive mixing so that make medicine and mud carry out intensive mixing, sludge transfer to dewatering device after adding the medicine and mixing the stirring dewaters, gets into the drop dry hopper after the dehydration, the export of drop dry hopper is provided with multistage compression roller, and the roll-in through multistage compression roller is further dewatered, passes through the scraper with the mud product scraping in the exit of final compression roller rotatory conveyer to the mud product collection device in.
Preferably, the dosing device is provided with a water feeding pipeline so as to fill the medicine into the mixing and stirring tank by using water; the dosing device is provided with a first electromagnetic flow meter and is used for metering the dosing amount so as to be mixed with sludge with preset mass according to a preset volume ratio.
Preferably, a second electromagnetic flow pump is arranged at the outlet pipeline of the mixing and stirring tank and used for metering the amount of the sludge entering the dewatering device.
Preferably, the dewatering device comprises a draining conveyor belt, a scraper and a dividing device, wherein the scraper is arranged above the draining conveyor belt and is used for scraping sludge on the draining conveyor belt; the first end of the scraper is connected to the top edge of the side part of the dewatering device, the lower edge of the scraper is used for scraping sludge, and the sludge enters the dividing device after being scraped and dewatered by the scraper; the multiunit cutting device is evenly arranged at equal intervals behind the scraper blade, each group cutting device comprises a crossbeam and a plurality of division bars perpendicular to the setting of the crossbeam, a plurality of division bars divide the mud of being strickled off on the conveyer belt of will driping into after the intensive mixing, mud is through the driping board driping, get into the driping hopper after the driping, the exit of driping hopper is provided with the conveyer belt and is provided with the inclination, so that at the gliding in-process down, further driping moisture, get into lower floor's driping conveyer belt.
Preferably, the draining conveyer belt is provided with a preset mesh number of meshes so as to drain the moisture in the sludge.
Preferably, a flushing pump is arranged below the draining hopper to flush residual sludge on the draining conveyor belt, so that the draining effect of the draining conveyor belt is prevented from being influenced.
Preferably, the rotary conveyor comprises a first rotary conveying device and a second rotary conveying device, the first rotary conveying device is perpendicular to at least one group of second rotary conveying devices, the first rotary conveying device is perpendicular to the dewatering device, the second rotary conveying device is parallel to the dewatering device, each rotary conveying device comprises a rotary conveying pump, a horizontally arranged rotary screw is arranged in each rotary conveying pump, and the rotary screws are driven by the rotary conveying pumps to move to convey sludge.
Preferably, the first pipeline comprises a first section, a second section and a third section; the first section of the first pipeline is directly connected with a sludge outlet of the sludge storage pool, and a first switch valve is arranged at the first section of the first pipeline of the sludge outlet; and a second switch valve is arranged at the inlet of the sludge inlet of the cutting machine.
Preferably, the second section of the first pipeline is arranged perpendicular to the first section of the first pipeline, the third section of the first pipeline is arranged perpendicular to the second section of the first pipeline, and the first section of the first pipeline and the third section of the first pipeline are arranged in parallel and at intervals and are respectively located on two sides of the second section of the first pipeline.
Preferably, the outlet of the mud pump is connected to the first portion of the third conduit; the second part of the third pipeline is arranged underground, the first part of the third pipeline is disposed with the second part of the third pipeline, and a first flowmeter is arranged on the second part of the third pipeline and used for metering the amount of sludge conveyed to the mixing and stirring tank; the second part of the third pipeline is respectively positioned at two ends of the first part of the third pipeline.
Compared with the prior art, the invention has the advantages that:
the invention can be widely applied to sludge treatment occasions, has simple structure, can avoid the risk of dust explosion in the high-temperature drying process, can reduce the energy consumption of the whole sludge treatment system and reduce the water content of the sludge; and the processing cost is low, and the installation is convenient.
Drawings
The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic configuration diagram of a sludge treatment apparatus according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
The sludge treatment equipment 100 according to the present invention, as shown in fig. 1, comprises a sludge storage tank 1, a cutter 2, a sludge feeding pump 3, a mixing and stirring tank 4, a dosing pump 5, a draining conveyor belt, a washing pump 6, and a press roll and a rotary conveyor 7.
The sludge storage tank 1 is provided with a sludge storage tank sludge outlet, the sludge storage tank sludge outlet is connected to the cutting machine 2 through a first pipeline, and sludge enters the cutting machine 2 for cutting. A sludge outlet of the cutting machine is connected to the mixing and stirring tank 4 through a second pipeline and a third pipeline, a sludge inlet pump 3 is arranged between the second pipeline and the third pipeline, and the cut sludge is conveyed to the mixing and stirring tank 4 through the sludge inlet pump 3; the mixing and stirring tank 4 is connected with a chemical feeding device which feeds a chemical, for example, a water treatment agent, into the mixing and stirring tank 4 through a chemical feeding pump 5 to be sufficiently stirred so as to sufficiently mix the chemical with the sludge, and preferably, the chemical feeding device is provided with a water feeding pipe so as to fill the chemical into the mixing and stirring tank 4 with water.
Preferably, the dosing device is provided with a first electromagnetic flow meter for metering the dosing amount so as to be mixed with sludge with a preset mass according to a preset ratio.
After the stirring, the water removal device 8 performs water removal treatment. The outlet of the mixing and stirring tank 4 is connected with a water device.
Specifically, a second electromagnetic flow pump is provided at the outlet pipe of the mixing and stirring tank 4 for metering the amount of sludge entering the dewatering device. The dewatering device comprises a draining conveying belt, a scraping plate and a cutting device, wherein the scraping plate is arranged above the draining conveying belt and is used for scraping sludge on the draining conveying belt. The first end of scraper blade is connected to the top edge of the lateral part of dewatering device, and the lower edge of scraper blade is used for strickleing off mud, strickles off the back through the scraper blade and goes into segmenting device. The multiunit cutting device is evenly arranged at equal intervals behind the scraper blade, each group cutting device comprises a cross beam and a plurality of division bars perpendicular to the cross beam, the division bars divide the scraped sludge on the draining conveying belt into sections and fully mixes the separated sludge, the sludge is drained through the draining plate, the drained sludge enters the draining hopper after being drained, the conveying belt is arranged at the outlet of the draining hopper, so that the water is further drained in the process of sliding downwards, and the drained sludge enters the lower draining conveying belt. The draining conveyer belt is provided with meshes with preset meshes so as to drain the water in the sludge.
Be provided with flush pump 6 in the below of driping hopper, wash and dripe remaining mud on the conveyer belt, avoid influencing the driping effect of driping the conveyer belt. The rotary conveyor 7 comprises a first rotary conveying device and a second rotary conveying device, the first rotary conveying device is perpendicular to at least one group of second rotary conveying devices, the first rotary conveying device is perpendicular to the dewatering device, the second rotary conveying device is parallel to the dewatering device, each rotary conveying device comprises a rotary conveying pump, a rotary screw rod horizontally arranged in the rotary conveying pump is arranged in the rotary conveying pump, and the rotary screw rod is driven by the rotary conveying pump to move to convey sludge.
And a multi-stage press roller is arranged at the outlet of the draining hopper, so that the sludge can be further dewatered through the multi-stage press roller, and finally, a sludge product which meets the standard after treatment is output. Preferably, at the outlet of the multistage press roll, a scraper is provided, which scrapes off the sludge product on the draining conveyor belt, which is transported by means of a rotating conveyor 7 to a sludge product collecting device.
Preferably, the scraper is located above the last press roll, the scraper being inclined in the opposite direction to the movement of the draining conveyor.
Preferably, the first conduit comprises a first section, a second section and a third section.
The first section of the first pipeline is directly connected with a sludge outlet of the sludge storage pool, and a first switch valve is arranged at the first section of the first pipeline at the sludge outlet.
Preferably, the sludge storage tank is provided with a plurality of sludge outlets, and correspondingly, the number of the first sections of the first pipeline and the number of the first switching methods correspond to the number of the sludge outlets. The second section of the first pipeline is perpendicular to the first section of the first pipeline, the third section of the first pipeline is perpendicular to the second section of the first pipeline, and the first section of the first pipeline and the third section of the first pipeline are parallel and spaced and are respectively positioned at two sides of the second section of the first pipeline. Preferably, the number of the third sections of the first pipeline is multiple, and the number of the cutters needing to be connected is determined according to the number of the third sections of the first pipeline.
The cutter 2 includes an enclosure and the cutter motor is located outside of the cutter, e.g., on top or otherwise, without interfering with other structures. The motor drives the cutting part of the cutting machine 2 to cut. The cutting part sets up in cutting machine 2's inside, avoids locating to produce and splashes in the cutting process, preferably, cutting machine 2's shell includes casing and top cap, and the top cap relies on locking device and when connecting the trouble, opens the top cap and carries out the breakdown maintenance. Further, be provided with first couple on the top cap, be provided with the second couple on the cutting machine casing lateral wall, fix top cap and casing through the spring. Preferably, the number of the springs is two, and the springs are respectively arranged on two sides of the locking device and used for further fixing the top cover and the cutter shell.
Preferably, the side of the housing of the cutter 2 is provided with a cutter sludge inlet and a cutter sludge outlet, and preferably, the cutter 2 has a plurality of sludge outlets. Preferably, a second switch valve is arranged at the inlet of the sludge inlet of the cutting machine. When the sludge outlet of the cutting machine 2 is limited, the cutting machine is plugged through the flange, and can be connected with a corresponding pipeline to work when in use.
The cutting motor is arranged on the top cover of the cutting machine 2.
Preferably, the first end of the second pipeline is connected with the sludge outlet of the cutting machine, the second section of the second pipeline, i.e. the outlet of the second pipeline, is connected with the sludge inlet pump 3, and the cut sludge is conveyed to the third pipeline through the sludge inlet pump 3.
Preferably, the second pipeline is an L-shaped structural member, and the outlet of the sludge inlet pump is perpendicular to the third pipeline.
The outlet of the second pipeline is vertical to the pipeline of the sludge inlet pump 3. And a third switch valve is arranged at the joint of the outlet of the sludge inlet pump 3 and the side wall of the third pipeline so as to control the amount of sludge entering the third pipeline after being cut by each cutting machine 2. And a fourth switch valve is arranged between the outlets of two adjacent sludge inlet pumps 3 in the third pipeline. Preferably, the outlet of the sludge pump 3 is connected to the first part of the third pipeline. The second part of the third pipeline is arranged underground, the first part of the third pipeline is disposed with the second part of the third pipeline, and a first flow meter is arranged on the second part of the third pipeline and used for metering the amount of the sludge conveyed to the mixing and stirring tank.
The second part of the third pipeline is respectively positioned at two ends of the first part of the third pipeline.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. Those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "at least three" means two or more unless otherwise specified.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A sludge treatment device is characterized by comprising a sludge storage tank, a cutting machine, a sludge inlet pump, a flushing machine, a mixing and stirring tank, a dosing device, a dewatering device, a compression roller and a rotary conveyor;
the sludge storage tank is provided with a sludge outlet of the sludge storage tank, the sludge outlet of the sludge storage tank is connected to the cutting machine through a first pipeline, and sludge enters the cutting machine for cutting; a sludge outlet of the cutting machine is connected to the mixing and stirring tank through a second pipeline and a third pipeline, the sludge inlet pump is arranged between the second pipeline and the third pipeline, and the cut sludge is conveyed to the mixing and stirring tank through the sludge inlet pump; mix the stirring pond and connect charge device, charge device through add the medicine pump with the medicine add extremely mix the stirring pond and carry out intensive mixing so that make medicine and mud carry out intensive mixing, sludge transfer to dewatering device after adding the medicine and mixing the stirring dewaters, gets into the drop dry hopper after the dehydration, the export of drop dry hopper is provided with multistage compression roller, and the roll-in through multistage compression roller is further dewatered, scrapes the mud product through the scraper in the exit of final compression roller, through rotatory conveyer is to in the mud product collection device.
2. The sludge treatment apparatus according to claim 1, wherein the chemical adding means is provided with a water feeding pipe for feeding a chemical into the mixing and stirring tank with water; the dosing device is provided with a first electromagnetic flow meter and is used for metering the dosing amount so as to be mixed with sludge with preset mass according to a preset volume ratio.
3. The sludge treatment apparatus as claimed in claim 1, wherein a second electromagnetic flow pump is provided at the outlet line of the mixing and stirring tank for metering the amount of sludge into the dewatering device.
4. The sludge treatment apparatus according to claim 1, wherein the dewatering device comprises a draining conveyor, a scraper, and a dividing device, wherein the scraper is arranged above the draining conveyor and is used for scraping the sludge on the draining conveyor; the first end of the scraper is connected to the top edge of the side part of the dewatering device, the lower edge of the scraper is used for scraping sludge, and the sludge enters the dividing device after being scraped and dewatered by the scraper; the multiunit cutting device is evenly arranged at equal intervals behind the scraper blade, each group cutting device comprises a crossbeam and a plurality of division bars perpendicular to the setting of the crossbeam, a plurality of division bars divide the mud of being strickled off on the conveyer belt of will driping into after the intensive mixing, mud is through the driping board driping, get into the driping hopper after the driping, the exit of driping hopper is provided with the conveyer belt and is provided with the inclination, so that at the gliding in-process down, further driping moisture, get into lower floor's driping conveyer belt.
5. The sludge treatment apparatus as claimed in claim 4, wherein the draining conveyer is provided with a mesh of a predetermined mesh number for draining the water contained in the sludge.
6. The sludge treatment apparatus according to claim 5, wherein a washing pump is provided below the draining hopper to wash away sludge remaining on the draining conveyor belt to avoid affecting the draining effect of the draining conveyor belt.
7. The sludge treatment apparatus according to claim 1, wherein the rotary conveyor includes a first rotary conveyor and a second rotary conveyor, the first rotary conveyor is perpendicular to at least one set of the second rotary conveyors, the first rotary conveyor is perpendicular to the dewatering device, the second rotary conveyor is parallel to the dewatering device, each rotary conveyor includes a rotary conveyor pump, and the rotary conveyor pump includes a horizontally arranged rotary screw which is driven by the rotary conveyor pump to move to convey sludge.
8. The sludge treatment apparatus of claim 1 wherein the first conduit includes a first section, a second section, and a third section; the first section of the first pipeline is directly connected with a sludge outlet of the sludge storage pool, and a first switch valve is arranged at the first section of the first pipeline of the sludge outlet; and a second switch valve is arranged at the inlet of the sludge inlet of the cutting machine.
9. The sludge treatment apparatus of claim 8 wherein the second section of the first conduit is disposed perpendicular to the first section of the first conduit, the third section of the first conduit is disposed perpendicular to the second section of the first conduit, and the first section of the first conduit and the third section of the first conduit are disposed in parallel and spaced apart and are disposed on either side of the second section of the first conduit.
10. The sludge treatment apparatus of claim 9 wherein the outlet of the sludge intake pump is connected to the first portion of the third conduit; the second part of the third pipeline is arranged underground, the first part of the third pipeline is disposed with the second part of the third pipeline, and a first flowmeter is arranged on the second part of the third pipeline and used for metering the amount of sludge conveyed to the mixing and stirring tank; the second part of the third pipeline is respectively positioned at two ends of the first part of the third pipeline.
CN201910984797.6A 2019-10-16 2019-10-16 Sludge treatment equipment Pending CN110615592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910984797.6A CN110615592A (en) 2019-10-16 2019-10-16 Sludge treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910984797.6A CN110615592A (en) 2019-10-16 2019-10-16 Sludge treatment equipment

Publications (1)

Publication Number Publication Date
CN110615592A true CN110615592A (en) 2019-12-27

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Application Number Title Priority Date Filing Date
CN201910984797.6A Pending CN110615592A (en) 2019-10-16 2019-10-16 Sludge treatment equipment

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CN (1) CN110615592A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906369A (en) * 1986-10-21 1990-03-06 Baehr Albert Apparatus for dewatering sludge and similar substances
CN101628781A (en) * 2009-08-24 2010-01-20 杭州绿鼎压滤机制造有限公司 SludgeDewatering equipment and sludge dewatering process
CN204509085U (en) * 2015-03-24 2015-07-29 杭州沐阳建筑技术有限公司 A kind of channel cleanout sludge dewatering system
CN206730647U (en) * 2017-04-19 2017-12-12 新疆金谷园生物科技有限公司 A kind of scraper-type dregs of rice material draining device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906369A (en) * 1986-10-21 1990-03-06 Baehr Albert Apparatus for dewatering sludge and similar substances
CN101628781A (en) * 2009-08-24 2010-01-20 杭州绿鼎压滤机制造有限公司 SludgeDewatering equipment and sludge dewatering process
CN204509085U (en) * 2015-03-24 2015-07-29 杭州沐阳建筑技术有限公司 A kind of channel cleanout sludge dewatering system
CN206730647U (en) * 2017-04-19 2017-12-12 新疆金谷园生物科技有限公司 A kind of scraper-type dregs of rice material draining device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
谢小青: "《污水处理工》", 30 June 2011, 厦门大学出版社 *
郑喜群等: "《现代甜菜糖厂技术装备》", 31 August 2017, 中国轻工业出版社 *

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Application publication date: 20191227