CN114772900A - Papermaking industry sludge recycling device - Google Patents
Papermaking industry sludge recycling device Download PDFInfo
- 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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- China
- Prior art keywords
- sludge
- conveying belt
- oven
- conveying
- conveyer belt
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- 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.)
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- 239000010802 sludge Substances 0.000 title claims abstract description 113
- 238000004064 recycling Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 4
- 235000013479 Amaranthus retroflexus Nutrition 0.000 abstract description 3
- 235000014224 Ceanothus americanus Nutrition 0.000 abstract description 3
- 240000005674 Ceanothus americanus Species 0.000 abstract description 3
- 235000001904 Ceanothus herbaceus Nutrition 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
Landscapes
- 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
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.
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 |
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Publication Number | Publication Date |
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CN114772900A true CN114772900A (en) | 2022-07-22 |
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ID=82408925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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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)
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)
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 |
-
2022
- 2022-05-26 CN CN202210582606.5A patent/CN114772900A/en active Pending
Patent Citations (7)
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)
Title |
---|
鲁明高: "人造板机械", 中国林业出版社, pages: 132 * |
Cited By (2)
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 |
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RJ01 | Rejection of invention patent application after publication |