CN112325691A - Paper machine stoving waste heat recovery utilizes system - Google Patents
Paper machine stoving waste heat recovery utilizes system Download PDFInfo
- Publication number
- CN112325691A CN112325691A CN202011030012.0A CN202011030012A CN112325691A CN 112325691 A CN112325691 A CN 112325691A CN 202011030012 A CN202011030012 A CN 202011030012A CN 112325691 A CN112325691 A CN 112325691A
- Authority
- CN
- China
- Prior art keywords
- filter
- waste heat
- recovery
- recovery tower
- paper machine
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/20—Waste heat recovery
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paper (AREA)
Abstract
The utility model provides a paper machine stoving waste heat recovery utilizes system, includes the centrifugal fan who is connected with the waste heat pipeline, and centrifugal fan's air outlet passes through the pipeline and links to each other with filter equipment, and filter equipment's outlet passes through the pipeline and links to each other with the recovery tower air inlet of recovery tower, is equipped with the recovery tower water inlet at the top of recovery tower, and the recovery tower water inlet passes through the pipeline and links to each other with plain boiled water recovery system, and the recovery tower delivery port of recovery tower bottom passes through the pipeline and links to each other with the fan. By adopting the structure, the heat energy generated by the drying part of the paper machine is recycled to the maximum extent and is reused in the paper making process, thereby avoiding the waste of heat energy, eliminating the pollution to the environment, having high heat energy recovery efficiency and low recovery cost, deeply purifying waste gas without extra energy consumption, avoiding the consumption of extra energy and saving the recovery cost.
Description
The technical field is as follows:
the invention relates to a heat energy recovery system, in particular to a paper machine drying waste heat recycling system.
Background art:
a paper machine is a general term for a complete set of apparatuses that link sections of pulp to form a web, and includes a headbox, a wire section, a press section, a drying section, a calender, a reel-up, a transmission section, and other main machines. The drying part of the paper machine is the key part of heat energy consumption in the paper making process, the steam consumption of products of different drying forms of different paper machines is generally 1.5-3 tons per ton of paper, and the emission is generally low-temperature steam and air mixed waste gas. At present, low-temperature steam and air mixed waste gas generated by a drying part is generally treated and then discharged into the air, and the heat energy is wasted, and meanwhile, the load is caused to the environment. Some waste heat recovery forms recycle waste heat, but most of the waste heat recovery forms are used for common heating, waste gas needs to be strictly treated, clean water needs to be adopted to obtain heat energy, energy can be additionally consumed, production cost is increased, in addition, the demand of common heating is limited by seasons, heat energy recovery is limited, and the cost performance of the whole waste heat recovery system is low.
The invention content is as follows:
the invention provides a paper machine drying waste heat recycling system which is reasonable in structural design and solves the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a paper machine drying waste heat recycling system comprises a centrifugal fan connected with a waste heat pipeline, wherein an air outlet of the centrifugal fan is connected with a filtering device through a pipeline, an outlet of the filtering device is connected with a recycling tower air inlet of a recycling tower through a pipeline, a recycling tower water inlet is formed in the top of the recycling tower, the recycling tower water inlet is connected with a white water recycling system through a pipeline, and a recycling tower water outlet in the bottom of the recycling tower is connected with a fan pump through a pipeline;
the fan pump comprises a fan pump body, wherein a white water inlet pipe is arranged on a liquid inlet pipe of the fan pump body, and the white water inlet pipe is connected with a water outlet.
Further, the filtering device comprises a filtering barrel, one end of the filtering barrel is provided with a filtering barrel air inlet pipe, a first filter screen is arranged in the filtering barrel air inlet pipe, the other end of the filtering barrel is provided with a filtering barrel air outlet pipe, and a second filter screen and a third filter screen are arranged in the filtering barrel air outlet pipe; the spiral channel is arranged in the filter vat, the adsorption material layer is arranged between the spiral channel and the filter vat, one end of the spiral channel is connected with the air inlet pipe of the filter vat, and the other end of the spiral channel is connected with the air outlet pipe of the filter vat.
Further, the spiral channel is a wire mesh channel, and the adsorption material layer is an activated carbon adsorption layer.
Further, the first filter screen is a particulate filter screen.
Further, the second filter screen and the third filter screen are metal filter screens.
Further, the first filter screen is arranged on a section of independent filter screen pipe, and the filter screen pipe is detachably arranged in the middle of the air inlet pipe of the filter barrel.
Furthermore, the top and the bottom of the filter vat are respectively provided with an access window.
Furthermore, an anticorrosive coating is coated inside the recovery tower, and the inside of the recovery tower is filled with a filler which is an anticorrosive material.
The invention adopts the structure and has the following advantages:
(1) the heat energy generated by the drying part of the paper machine is recycled to the greatest extent and is reused in the paper making process, so that the waste of the heat energy is avoided, the pollution to the environment is eliminated, the heat energy recovery efficiency is high, the recovery cost is low, the waste gas is deeply purified without extra energy consumption, the extra energy consumption is avoided, and the recovery cost is saved;
(2) the recovered heat energy is applied to the net part again, and the temperature of the upper wire pulp is increased, so that the viscosity of the upper wire pulp is reduced, the dewatering performance of paper sheets in the net part of a paper machine is effectively improved, the aims of reducing consumption and increasing yield are achieved, and the optimal utilization of waste heat is realized.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the filtering device of the present invention.
In the figure, 1, a centrifugal fan, 2, a filtering device, 3, a recovery tower, 4, a white water recovery system, 5, a fan pump, 6, a white water inlet pipe, 7, a filtering barrel, 8, a filtering barrel inlet pipe, 9, a first filter screen, 10, a filtering barrel outlet pipe, 11, a second filter screen, 12, a third filter screen, 13, a spiral channel, 14, an adsorption material layer, 15, a filter screen pipe, 16, an access window, 17 and fillers.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in the figure, a paper machine drying waste heat recycling system comprises a centrifugal fan 1 connected with a waste heat pipeline, wherein an air outlet of the centrifugal fan 1 is connected with a filtering device 2 through a pipeline, an outlet of the filtering device 2 is connected with a recycling tower air inlet of a recycling tower 3 through a pipeline, a recycling tower water inlet is arranged at the top of the recycling tower 3, the recycling tower water inlet is connected with a white water recycling system 4 through a pipeline, and a recycling tower water outlet at the bottom of the recycling tower 3 is connected with a fan pump 5 through a pipeline;
the fan pump 5 comprises a fan pump body, a white water inlet pipe 6 is arranged on a liquid inlet pipe of the fan pump body, and the white water inlet pipe 6 is connected with a water outlet of the recovery tower.
The white water entering the fan pump 5 is the white water which is fully mixed with the waste heat through the recovery tower 3, and enters the fan pump 3 to ensure that the temperature of the upper wire sizing agent is increased to 43-45 ℃.
The filtering device 2 comprises a filtering barrel 7, one end of the filtering barrel 7 is provided with a filtering barrel air inlet pipe 8, a first filter screen 9 is arranged in the filtering barrel air inlet pipe 8, the other end of the filtering barrel 7 is provided with a filtering barrel air outlet pipe 10, and a second filter screen 11 and a third filter screen 12 are arranged in the filtering barrel air outlet pipe 10; a spiral channel 13 is arranged in the filter vat 7, an adsorption material layer 14 is arranged between the spiral channel 13 and the filter vat 7, one end of the spiral channel 13 is connected with the air inlet pipe 8 of the filter vat, and the other end is connected with the air outlet pipe 10 of the filter vat.
The spiral channel 13 is a wire mesh channel, and the adsorption material layer 14 is an activated carbon adsorption layer.
The first filter screen 9 is a particulate filter screen.
The second filter screen 11 and the third filter screen 12 are metal filter screens.
The first filter screen 9 is arranged on a section of independent filter screen pipe 15, and the filter screen pipe 15 is detachably arranged in the middle of the filter barrel air inlet pipe 9. When the filter screen needs to be replaced, the filter screen pipe 15 can be directly detached for replacement, and convenience and rapidness are achieved.
And the top and the bottom of the filter vat 7 are respectively provided with an access window 16. When replacement of the adsorbent material layer 14 is required, the replacement may be performed directly through the access panel 16.
The interior of the recovery tower 3 is covered with an anticorrosive coating, and the interior of the recovery tower 3 is filled with a filler 17, wherein the filler 17 is a corrosion-resistant material.
The working principle is as follows: during the drying process of the drying section of the paper machine, a large amount of waste hot gas is generated and is collected through a pipeline, the collected waste heat firstly passes through the centrifugal fan 1, then the waste heat is sent into the filter device 2 by the centrifugal fan 1, the waste heat gas is filtered by the filter device 2, firstly, the solid phase substance in the air is filtered for the first time by the first filter screen 9 of the filter device 2, the waste heat gas passing through the first filter screen 9 enters the spiral channel 13, due to the action of the centrifugal fan 1, the flow entering the spiral channel 13 is still faster, due to the influence of inertia, the solid-phase substances in the waste hot gas can collide on the wall of the spiral channel 13 in sequence during the rotation process, since the spiral channel 13 is a wire mesh, and the outer side of the wire mesh is an activated carbon adsorption layer, the solid-phase substance impinging on the wall of the spiral channel is adsorbed by the activated carbon adsorption layer.
The waste hot gas passing through the spiral channel 13 does not contain solid-phase substances with large volume basically, and the gas passes through the second filter screen 11 and the third filter screen 12 again to filter out small impurities in the gas, so that relatively clean hot gas is obtained.
The air filtered by the filter device 2 enters the recovery tower 3, white water is gathered in the recovery tower 3, the white water is clear water, the clear water and the hot gas are mixed in the recovery tower 3, the filler filled in the recovery tower 3 is corrosion-resistant particles, the clear water and the hot gas can be fully mixed, the temperature of the clear water is increased, the clear water flows to the bottom of the recovery tower 3, and the clear water is discharged from a water outlet of the recovery tower and enters the fan pump 5.
The heated clear water, the paper pulp and various auxiliary materials are mixed in the fan pump 5, the temperature of the finally controlled pulp is 43-45 ℃, the temperature of the common pulp is approximately 35-38 ℃, the viscosity of the pulp at 43-45 ℃ is reduced compared with that of the pulp at 35-38 ℃, the net dewatering can be effectively improved, the vehicle speed is improved, the production efficiency is improved, and the quality of the produced paper product is better.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. The utility model provides a paper machine stoving waste heat recovery utilizes system which characterized in that: the system comprises a centrifugal fan connected with a waste heat pipeline, wherein an air outlet of the centrifugal fan is connected with a filtering device through a pipeline, an outlet of the filtering device is connected with an air inlet of a recovery tower through a pipeline, a water inlet of the recovery tower is arranged at the top of the recovery tower, the water inlet of the recovery tower is connected with a white water recovery system through a pipeline, and a water outlet of the recovery tower at the bottom of the recovery tower is connected with a fan pump through a pipeline;
the fan pump comprises a fan pump body, wherein a white water inlet pipe is arranged on a liquid inlet pipe of the fan pump body, and the white water inlet pipe is connected with a water outlet.
2. The paper machine drying waste heat recycling system according to claim 1, characterized in that: the filter device comprises a filter barrel, wherein a filter barrel air inlet pipe is arranged at one end of the filter barrel, a first filter screen is arranged in the filter barrel air inlet pipe, a filter barrel air outlet pipe is arranged at the other end of the filter barrel, and a second filter screen and a third filter screen are arranged in the filter barrel air outlet pipe; the spiral channel is arranged in the filter vat, the adsorption material layer is arranged between the spiral channel and the filter vat, one end of the spiral channel is connected with the air inlet pipe of the filter vat, and the other end of the spiral channel is connected with the air outlet pipe of the filter vat.
3. The paper machine drying waste heat recycling system according to claim 2, characterized in that: the spiral channel is a wire mesh channel, and the adsorption material layer is an activated carbon adsorption layer.
4. The paper machine drying waste heat recycling system according to claim 2, characterized in that: the first filter screen is a particulate filter screen.
5. The paper machine drying waste heat recycling system according to claim 2, characterized in that: the second filter screen and the third filter screen are metal filter screens.
6. The paper machine drying waste heat recycling system according to claim 2, characterized in that: the first filter screen is arranged on a section of independent filter screen pipe, and the filter screen pipe is detachably arranged in the middle of the air inlet pipe of the filter barrel.
7. The paper machine drying waste heat recycling system according to claim 2, characterized in that: and the top and the bottom of the filter barrel are respectively provided with an access window.
8. The paper machine drying waste heat recycling system according to claim 1, characterized in that: the interior of the recovery tower is covered with an anticorrosive coating, and the interior of the recovery tower is filled with a filler which is an anticorrosive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011030012.0A CN112325691A (en) | 2020-09-27 | 2020-09-27 | Paper machine stoving waste heat recovery utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011030012.0A CN112325691A (en) | 2020-09-27 | 2020-09-27 | Paper machine stoving waste heat recovery utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112325691A true CN112325691A (en) | 2021-02-05 |
Family
ID=74304240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011030012.0A Pending CN112325691A (en) | 2020-09-27 | 2020-09-27 | Paper machine stoving waste heat recovery utilizes system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112325691A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1606563A1 (en) * | 1988-12-14 | 1990-11-15 | Центральный Научно-Исследовательский И Проектно-Конструкторский Институт По Проектированию Оборудования Для Целлюлозно-Бумажной Промышленности | Arrangement for recuperating heat in ventilation system of paper-making machine |
| CN203229833U (en) * | 2013-04-26 | 2013-10-09 | 广东理文造纸有限公司 | Surplus heat recovery system of papermaking drying part |
| CN204570376U (en) * | 2015-03-26 | 2015-08-19 | 江苏理文造纸有限公司 | Papermaking dry portion waste heat recovery circulating device |
| DE102015202398A1 (en) * | 2015-02-11 | 2015-12-17 | Voith Patent Gmbh | filter means |
| CN207143608U (en) * | 2017-08-22 | 2018-03-27 | 中国海诚工程科技股份有限公司 | One-level recuperation of heat tail gas heat quantity recycling system |
| CN208066064U (en) * | 2017-12-29 | 2018-11-09 | 江苏恩洁优环境服务有限公司 | A kind of organic exhaust gas reclaimer |
| CN209771729U (en) * | 2019-04-12 | 2019-12-13 | 东营职业学院 | petrochemical processing tower |
-
2020
- 2020-09-27 CN CN202011030012.0A patent/CN112325691A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1606563A1 (en) * | 1988-12-14 | 1990-11-15 | Центральный Научно-Исследовательский И Проектно-Конструкторский Институт По Проектированию Оборудования Для Целлюлозно-Бумажной Промышленности | Arrangement for recuperating heat in ventilation system of paper-making machine |
| CN203229833U (en) * | 2013-04-26 | 2013-10-09 | 广东理文造纸有限公司 | Surplus heat recovery system of papermaking drying part |
| DE102015202398A1 (en) * | 2015-02-11 | 2015-12-17 | Voith Patent Gmbh | filter means |
| CN204570376U (en) * | 2015-03-26 | 2015-08-19 | 江苏理文造纸有限公司 | Papermaking dry portion waste heat recovery circulating device |
| CN207143608U (en) * | 2017-08-22 | 2018-03-27 | 中国海诚工程科技股份有限公司 | One-level recuperation of heat tail gas heat quantity recycling system |
| CN208066064U (en) * | 2017-12-29 | 2018-11-09 | 江苏恩洁优环境服务有限公司 | A kind of organic exhaust gas reclaimer |
| CN209771729U (en) * | 2019-04-12 | 2019-12-13 | 东营职业学院 | petrochemical processing tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5685789B2 (en) | Method and apparatus for effective utilization of metakaolin in paper sludge ash and coal ash | |
| CN104913613B (en) | Spinning fabric energy-saving dryer | |
| CN104195779A (en) | Open-width continuous high-speed scouring, bleaching and whitening combine for chemical-fiber woven fabric | |
| CN105386349A (en) | Custom environment-friendly paper machine for office and home use | |
| CN206157451U (en) | High -efficient environmental protection paper machine of domestic water conservation of official working | |
| CN112325691A (en) | Paper machine stoving waste heat recovery utilizes system | |
| CN102182091B (en) | Method for wastepaper deinking and pulping | |
| CN207792946U (en) | Sewage treatment utilizes device in a kind of paper-making process | |
| CN109629289B (en) | Waste paper pulping device for preparing papermaking pulp of corrugated medium paper | |
| CN107119484A (en) | A kind of environmentally friendly deinking slag starches process for producing method with OCC | |
| CN211935916U (en) | Surface adhesive deslagging system | |
| CN216910117U (en) | Maltodextrin apparatus for producing | |
| CN215481941U (en) | Waste paper papermaking equipment capable of recycling waste heat | |
| CN107587368A (en) | A kind of bio-pulping equipment | |
| CN209816553U (en) | Recycling device for papermaking drying tail gas | |
| CN2778364Y (en) | Heating unit of filtering assembly | |
| CN207786125U (en) | A kind of waste liquid recovery apparatus in paper-making process | |
| CN210214825U (en) | Liquid iron-free aluminum sulfate production system | |
| CN210214824U (en) | Solid iron-free aluminum sulfate production system | |
| CN109437496B (en) | A kind of energy-saving Treatment of Beer Wastewater system | |
| CN208751179U (en) | A kind of micron order light calcium carbonate powder drying device | |
| CN206070245U (en) | Paper pulp stickies control device | |
| CN206448109U (en) | Steam afterheat recovery device in a kind of paper making process | |
| CN205775599U (en) | A kind of plain boiled water tower for processing mthod of white water from paper making and system | |
| CN202379757U (en) | Recovery installation for slurry generated in titanium tetrachloride production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210205 |
|
| WD01 | Invention patent application deemed withdrawn after publication |