CN114772900A - Papermaking industry sludge recycling device - Google Patents

Papermaking industry sludge recycling device Download PDF

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Publication number
CN114772900A
CN114772900A CN202210582606.5A CN202210582606A CN114772900A CN 114772900 A CN114772900 A CN 114772900A CN 202210582606 A CN202210582606 A CN 202210582606A CN 114772900 A CN114772900 A CN 114772900A
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CN
China
Prior art keywords
sludge
conveying belt
oven
conveying
conveyer belt
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Pending
Application number
CN202210582606.5A
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Chinese (zh)
Inventor
陆伟
章丽丽
王梅
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.)
Hefei Hongtu Printing Co ltd
Original Assignee
Hefei Hongtu Printing Co ltd
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Publication date
Application filed by Hefei Hongtu Printing Co ltd filed Critical Hefei Hongtu Printing Co ltd
Priority to CN202210582606.5A priority Critical patent/CN114772900A/en
Publication of CN114772900A publication Critical patent/CN114772900A/en
Pending legal-status Critical Current

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    • 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
    • C02F11/13Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention discloses a sludge recycling device in the paper industry, which comprises an oven and a sludge conveying belt arranged in the oven, wherein two ends of the sludge conveying belt extend out of the oven, a sludge conveying device is arranged at the initial end of the sludge conveying belt, wet sludge is conveyed onto the sludge conveying belt and is dried by the oven, and a material collecting box for collecting the dried sludge is arranged at the terminal end of the sludge conveying belt; the sludge conveying device comprises a sludge box and a spiral conveying pipe arranged at the bottom of the sludge box; the spiral conveying pipe is arranged above the sludge conveying belt, a plurality of discharging holes are uniformly distributed on the side face, facing the sludge conveying belt, of the spiral conveying pipe, a plurality of pressure rollers are arranged at the front and back positions on the sludge conveying belt at the rear part of the spiral conveying pipe, and the distance between the outer surface of each pressure roller and the sludge conveying belt is sequentially reduced from front to back; the device for recycling sludge in the paper industry realizes drying of sludge with large water content or semi-fluid state of red roots through the oven, and is convenient to collect and transport.

Description

Papermaking industry sludge recycling device
Technical Field
The invention belongs to the field of sludge treatment, and particularly relates to a sludge recycling device in the papermaking industry.
Background
A large amount of sludge is generated in the paper-making production process, the paper-making sludge refers to precipitates, particles and floating materials generated after wastewater is treated by a physical method, a chemical method, a physical-chemical method, a biological method and the like, and the paper-making sludge is an end product of wastewater treatment in the pulping and paper-making processes. The composition of the sludge is somewhat complex and consists mainly of inorganic and organic substances. The inorganic substance is mainly composed of fillers and coatings from paper, so its main components are clay and calcium carbonate and talc; the organic matter refers to cellulose, lignin, hemicellulose, etc. If the sludge generated during the paper making is directly discarded, not only the resource waste is caused, but also the environment is polluted, but when the paper making sludge is recycled, the sludge is very difficult to control if the sludge is recycled in a fluid state.
Disclosure of Invention
The invention aims to provide a device for recycling sludge in the paper industry, which is used for drying sludge with high water content or enabling red roots to be in a semi-fluid state through an oven, and is convenient to collect and transport.
The invention relates to a device for recycling sludge in paper industry, which comprises an oven and a sludge conveyer belt arranged in the oven, wherein two ends of the sludge conveyer belt extend out of the oven, a sludge conveying device is arranged at the initial end of the sludge conveyer belt, wet sludge is conveyed onto the sludge conveyer belt and is dried by the oven, and a collecting box for collecting the dried sludge is arranged at the terminal end of the sludge conveyer belt;
the sludge conveying device comprises a sludge box and a spiral conveying pipe arranged at the bottom of the sludge box; spiral delivery pipe set up in mud conveyer belt top, just spiral delivery pipe orientation the equipartition is provided with a plurality of discharge openings on the side of mud conveyer belt, it is provided with a plurality of nip rolls to be the front-back position on the mud conveyer belt at spiral delivery pipe rear portion, the distance reduces by preceding back in proper order between nip roll surface and the mud conveyer belt.
Preferably, the sludge conveying belt comprises a conveying belt body and water baffles integrally connected to two edges of the conveying belt body, and the length of the nip roll is smaller than the width of the conveying belt body.
Preferably, the top of the sludge conveying belt is raised upwards, and a pressing roller for changing the direction of the conveying belt body to the horizontal state is arranged on the conveying surface of the conveying belt body.
Preferably, at least two layers of sludge conveying belts are arranged in the baking oven; each layer of sludge conveying belt is independently driven and controlled.
Preferably, a plurality of deflector rods for stirring the sludge on the sludge conveying belt are arranged above the conveying belt body in the oven.
Preferably, the drying oven is connected with a hot air device, the hot air device comprises a burner, an air inlet pipe connected with an air outlet of the burner, an air inlet which is arranged at the end, close to the sludge conveying belt, of the drying oven and is connected with the air inlet pipe, and an air outlet arranged at the top of the drying oven, the air outlet of the heat exchanger is connected with the air inlet of the burner.
The papermaking industry sludge recycling device has the beneficial effects that: through the oven, realize drying the mud that water content is big or the red root is the semifluid state, be convenient for collect and transport.
Drawings
FIG. 1 is a schematic structural view of a sludge recycling device in paper industry according to the technical solution of the present invention,
fig. 2 is a top view of fig. 1.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.
As shown in fig. 1 and 2, the sludge recycling device in paper industry according to the present invention comprises an oven 1 and a sludge conveying belt 2 disposed in the oven 1. Oven 1 all extends at 2 both ends of mud conveyer belt, and the top of mud conveyer belt 2 is provided with and send mud device 4, carries wet mud to mud conveyer belt 2 on, through oven 1 stoving. The terminal of the sludge conveyer belt 2 is provided with a material collecting box for collecting the dried sludge. Through this technical scheme, the wet mud that will contain water content is toasted through this oven 1 for the evaporation of moisture in the mud in a large number obtains the mud or the dry mud that the water content is few, and the cost of mud cost in the turnover is reduced in collection, splendid attire and the transportation of the mud of being convenient for, more can avoid the secondary pollution of mud to the environment simultaneously.
In this technical scheme, send mud device 4 to include sludge box 41 and place spiral delivery pipe 42 in sludge box 41 bottom. The spiral conveying pipe 42 is arranged above the sludge conveying belt 2, and a plurality of discharging holes 43 are uniformly distributed on the side surface of the spiral conveying pipe 42 facing the sludge conveying belt 2. Through the arrangement of the spiral conveying pipe 42 and the discharging hole 43, the sludge conveying device 4 can uniformly convey the sludge onto the sludge conveying belt 2. Discharge opening 43's setting for mud is discrete heap form and falls on the mud conveyer belt, is carried forward, avoids a large amount of disposable of mud to fall on the mud conveyer belt, and crosses the mud conveyer belt, causes mud to unload, causes the secondary pollution of environment.
In the technical scheme, a plurality of pressure rollers 6 are arranged at the rear and the front of the sludge conveying belt 2 at the rear part of the spiral conveying pipe 42, and the distance between the outer surface of each pressure roller 6 and the sludge conveying belt 2 is reduced from front to back in sequence. The piled sludge is dispersed through the material pressing rollers, the heating area of the sludge is increased, the moisture evaporation area in the sludge is increased, and the drying efficiency is improved.
In the technical scheme, the sludge conveying belt 2 comprises a conveying belt body 21 and water baffle plates 22 which are integrally connected to two edges of the conveying belt body 21, and the length of the nip rolls 3 is smaller than the width of the conveying belt body 21. Due to the arrangement of the water baffle plate 22, the sludge and the moisture in the sludge are blocked, and the sludge is prevented from overflowing the range of the sludge conveying belt.
In this technical scheme, the top of mud conveyer belt 2 upwards raises, avoids getting into the mud on the mud conveyer belt and flows out by mud conveyer belt tip, causes secondary pollution. The conveying surface of the conveying belt body 21 is provided with a press roller 7 for realizing the redirection of the conveying belt body 21 to the horizontal state.
In the technical scheme, at least two layers of sludge conveying belts 2 are arranged in the oven 1; and each layer of sludge conveyer belt is independently driven and controlled. The number of layers or the number of the sludge conveying belts is increased, the utilization rate of heat in the drying oven is improved, and the sludge treatment efficiency is improved.
In the technical scheme, a plurality of shift levers 3 for shifting sludge on the sludge conveying belt are arranged above the conveying belt body 21 in the oven 1. The deflector rod 3 turns over or fluctuates the sludge, so that the sludge is heated uniformly, and the evaporation speed of water in the sludge is increased.
In the technical scheme, the oven 1 is connected with a hot air device, and the hot air device comprises a burner 51, an air inlet pipe 52 connected with an air outlet of the burner 51, an air inlet which is arranged at the end of the oven 1 close to the sludge conveying belt and connected with the air inlet pipe 52, and an air outlet arranged at the top of the oven 1. The air outlet is connected with a heat exchanger 53, and the air outlet of the heat exchanger 53 is connected with the air inlet of the combustor 51. The combustor is realized heating the air through burning natural gas, obtains high temperature air, then carry high temperature air to the oven in, dry to the mud memorability on the mud conveyer belt in the oven, then the moisture content of mud is discharged along with the air by the air vent on the oven, to the heat transfer gas in, the heat exchanger is through the heat transfer, gets rid of the moisture content in the exhaust, then obtains the air of certain high temperature, heats this air that has certain high temperature through the combustor, realizes heat recovery and utilizes. In the technical scheme, the air is heated through the burner, the obtained heating air is high in temperature, and the sludge drying effect is good.
Technical solution of the invention is described above with reference to the accompanying drawings by way of example, and it is obvious that the invention is not limited to the above embodiments, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and technical solution, or to apply the inventive concept and technical solution to other situations without any modification.

Claims (6)

1. The device for recycling the sludge in the papermaking industry is characterized by comprising an oven and a sludge conveying belt arranged in the oven, wherein two ends of the sludge conveying belt extend out of the oven, a sludge conveying device is arranged at the initial end of the sludge conveying belt, wet sludge is conveyed onto the sludge conveying belt and is dried by the oven, and a collecting box for collecting the dried sludge is arranged at the terminal end of the sludge conveying belt;
the sludge conveying device comprises a sludge box and a spiral conveying pipe arranged at the bottom of the sludge box; auger delivery pipe set up in sludge conveyer belt top, just auger delivery pipe orientation the equipartition is provided with a plurality of discharge openings on sludge conveyer belt's the side, it is the fore-and-aft position on the sludge conveyer belt at auger delivery pipe rear portion and is provided with a plurality of nip rolls, the distance reduces by preceding in proper order backward between nip roll surface and the sludge conveyer belt.
2. The recycling device for sludge in paper industry as claimed in claim 1, wherein the sludge conveying belt comprises a conveying belt body and water baffles integrally connected to two edges of the conveying belt body, and the length of the nip roll is smaller than the width of the conveying belt body.
3. The papermaking industry sludge recycling device according to claim 1, wherein the starting end of the sludge conveying belt is raised upward, and a pressing roller for realizing the redirection of the conveying belt body to the horizontal state is arranged on the conveying surface of the conveying belt body.
4. The papermaking industry sludge recycling device according to claim 1, wherein the number of the sludge conveying belts in the oven is not less than two; each layer of sludge conveying belt is independently driven and controlled.
5. The sludge recycling device in the paper industry according to claim 1, wherein a plurality of deflector rods for stirring the sludge on the sludge conveyer belt are arranged above the conveyer belt body in the oven.
6. The papermaking industry sludge recycling device according to claim 1, wherein the oven is connected with a hot air device, the hot air device comprises a burner, an air inlet pipe connected with an air outlet of the burner, an air inlet arranged at a terminal of the oven close to the sludge conveying belt and connected with the air inlet pipe, and an air outlet arranged at the top of the oven, the air outlet is connected with a heat exchanger, and an air outlet of the heat exchanger is connected with an air inlet of the burner.
CN202210582606.5A 2022-05-26 2022-05-26 Papermaking industry sludge recycling device Pending CN114772900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210582606.5A CN114772900A (en) 2022-05-26 2022-05-26 Papermaking industry sludge recycling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210582606.5A CN114772900A (en) 2022-05-26 2022-05-26 Papermaking industry sludge recycling device

Publications (1)

Publication Number Publication Date
CN114772900A true CN114772900A (en) 2022-07-22

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CN202210582606.5A Pending CN114772900A (en) 2022-05-26 2022-05-26 Papermaking industry sludge recycling device

Country Status (1)

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CN (1) CN114772900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115925215A (en) * 2022-11-18 2023-04-07 盐城市泉通环保设备有限公司 Sludge treatment device and working method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020043526A (en) * 2002-05-16 2002-06-10 진영섭 Organic / Inorganic Sludge Dryer
CA2884187A1 (en) * 2015-03-10 2016-09-10 Axsiom Management, Inc. On-site activation of sludges, organic compounds and wastewater for microbial digestion using peroxodisulphate derived from toxic sulfur compounds
CN106242233A (en) * 2016-08-30 2016-12-21 上海东诚环保科技有限公司 low temperature sludge drying system
CN207294551U (en) * 2017-06-12 2018-05-01 大连经济技术开发区排水管理有限公司 A kind of sludge drying mechanism
CN112811776A (en) * 2020-12-30 2021-05-18 蕉岭金发纸业有限公司 Treatment system and treatment method for papermaking sludge of recycled paper
CN113636686A (en) * 2021-09-07 2021-11-12 合肥宏图彩印有限公司 Papermaking sludge recycling process and equipment
CN114291995A (en) * 2021-12-27 2022-04-08 中科鼎实环境工程有限公司 Sludge dewatering and drying device and construction method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020043526A (en) * 2002-05-16 2002-06-10 진영섭 Organic / Inorganic Sludge Dryer
CA2884187A1 (en) * 2015-03-10 2016-09-10 Axsiom Management, Inc. On-site activation of sludges, organic compounds and wastewater for microbial digestion using peroxodisulphate derived from toxic sulfur compounds
CN106242233A (en) * 2016-08-30 2016-12-21 上海东诚环保科技有限公司 low temperature sludge drying system
CN207294551U (en) * 2017-06-12 2018-05-01 大连经济技术开发区排水管理有限公司 A kind of sludge drying mechanism
CN112811776A (en) * 2020-12-30 2021-05-18 蕉岭金发纸业有限公司 Treatment system and treatment method for papermaking sludge of recycled paper
CN113636686A (en) * 2021-09-07 2021-11-12 合肥宏图彩印有限公司 Papermaking sludge recycling process and equipment
CN114291995A (en) * 2021-12-27 2022-04-08 中科鼎实环境工程有限公司 Sludge dewatering and drying device and construction method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
鲁明高: "人造板机械", 中国林业出版社, pages: 132 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115925215A (en) * 2022-11-18 2023-04-07 盐城市泉通环保设备有限公司 Sludge treatment device and working method thereof
CN115925215B (en) * 2022-11-18 2023-09-12 盐城市泉通环保设备有限公司 Sludge treatment device and working method thereof

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Application publication date: 20220722

RJ01 Rejection of invention patent application after publication