CN219670943U - Papermaking stoving waste heat recovery multiplexing system - Google Patents
Papermaking stoving waste heat recovery multiplexing system Download PDFInfo
- Publication number
- CN219670943U CN219670943U CN202320889172.3U CN202320889172U CN219670943U CN 219670943 U CN219670943 U CN 219670943U CN 202320889172 U CN202320889172 U CN 202320889172U CN 219670943 U CN219670943 U CN 219670943U
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- China
- Prior art keywords
- tank
- heat exchange
- pipe
- multiplexing system
- steam
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- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 239000002918 waste heat Substances 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 239000000110 cooling liquid Substances 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 10
- 238000005265 energy consumption Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000011111 cardboard Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 241000274582 Pycnanthus angolensis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
Abstract
The utility model discloses a papermaking drying waste heat recovery multiplexing system which sequentially comprises a drying cylinder, a heat exchange tank and a filtering tank, wherein a steam pipeline for introducing drying steam is arranged in the drying cylinder, a heat exchange pipe and cooling liquid are arranged in the heat exchange tank, the cooling liquid wraps the heat exchange pipe, the steam pipeline is connected with the heat exchange pipe, a water inlet pipe for introducing the cooling liquid and a vent pipe for introducing steam are arranged on the heat exchange tank, one end of the vent pipe is connected with the heat exchange pipe, the other end of the vent pipe is connected with the filtering tank, a spray pipe for discharging the cooling liquid is arranged on the heat exchange tank, a spray header is arranged on the spray pipe, the spray header discharges water towards the bottom of a net part, and the spray header is used for cleaning residual pulp on the net part. And the heated cooling liquid is led to the spray pipe, the net part is sprayed out and cleaned through the spray header, the cooled high-temperature steam is subjected to gas-liquid separation and waste discharge through the filter tank, and the water vapor is condensed into water and then is separated from other gases for discharge, so that the energy-saving and environment-friendly effects are improved.
Description
Technical Field
The utility model relates to the technical field of papermaking, in particular to a papermaking drying waste heat recovery multiplexing system.
Background
In the production process of the cardboard paper, the cardboard paper subjected to gluing needs to be dried, water in the pressed paper sheets is removed, meanwhile, the strength of the paper is improved, and the smoothness of the paper is improved. At present, the drying of the cardboard paper is mainly performed by introducing high-temperature steam into a drying part, and the high-temperature steam flows through a high-temperature steam pipe and is distributed to a plurality of groups of air supply branch pipes. The high-temperature steam is discharged outwards through the plurality of groups of ventilation holes while preheating the pipeline, so that the boxboard paper is heated and the moisture is removed. In the drying process, the production line consumes a large amount of steam, if the steam is directly treated and then discharged, heat is wasted, so that the energy consumption and the cost of the papermaking production line are improved, and the energy conservation and the environmental protection are not facilitated.
Disclosure of Invention
The utility model provides a papermaking drying waste heat recovery multiplexing system, which aims to solve the problems that in the prior art, a production line directly discharges high-temperature steam to cause heat waste, the cost and the energy consumption are increased, and the energy conservation and the environmental protection are not facilitated.
The utility model provides a multiplexing system of stoving waste heat recovery of papermaking, includes dryer, heat transfer pot, filtration jar, wire portion in proper order, be equipped with the steam line who lets in stoving steam in the dryer, be equipped with the heat exchange tube in the heat transfer pot, be full of the coolant liquid and wrap up the heat exchange tube in the heat transfer pot, steam line and heat transfer union coupling, be equipped with the breather pipe that is used for letting in the inlet tube of coolant liquid and lets out steam on the heat transfer pot, breather pipe one end and heat exchange tube coupling, the other end is connected with the filtration jar, be equipped with the shower that is used for discharging the coolant liquid on the heat transfer pot, be equipped with the shower, the shower goes out water towards the bottom of wire portion, the shower is used for wasing the incomplete thick liquid on the wire portion.
Through adopting above-mentioned technical scheme, stoving steam is high temperature steam, high temperature steam keeps the high temperature state after drying paper in the dryer and gets into the heat transfer tank through the heat exchange tube, because there is the difference in temperature between steam and coolant liquid, high temperature steam exchanges heat with the coolant liquid in the heat transfer tank, coolant liquid temperature after the heat transfer risees and is used for spraying the washing net portion through the shower and sends out, the keeping away of net portion is similar with the conveyer belt of circulation operation, net portion can carry out the washing of net portion through the shower head after moving to the downside, hot water temperature is high, consequently the water molecule motion is fast, cleaning effect is better, the cleaning effect to incomplete thick liquid is better, carry out reasonable reuse to the heat, reduce cost and energy consumption, the steam after the heat transfer is discharged after filtering, reduce harmful gas's discharge, more energy-conservation and environmental protection.
Optionally, a heating copper pipe for heating the cooling liquid is arranged in the spray pipe.
Through adopting above-mentioned technical scheme, the condition that little coolant liquid exists not heat transfer, and its temperature is lower when spraying, and spraying effect is relatively poor, and the condition that the incomplete influence of washing was carried the product can appear, consequently can then heat the coolant liquid that does not satisfy the temperature requirement to the temperature of needs through heating the copper pipe, improves cleaning performance.
Optionally, the lower part of filtering jar is equipped with the fluid-discharge tube that is used for discharging liquid, the upper portion of filtering jar is equipped with the outlet duct, the inside of filtering jar is equipped with the filter layer that is used for absorbing harmful gas.
By adopting the technical scheme, not only steam exists in high-temperature steam, but also some other harmful gases exist, and the steam can be condensed and the like in the heat exchange process because of temperature reduction, so that the liquid discharge pipe and the air outlet pipe are arranged to separate the gas from the liquid, the gas floats upwards and absorbs the harmful gases through the filter layer, and the discharge of the harmful gases is reduced.
Optionally, the filter layer is disposed at the lower side of the air outlet pipe, and the filter layer includes a water absorption layer and an activated carbon layer.
By adopting the technical scheme, the gas possibly carries some liquid in the floating process, so that the water absorption layer is arranged in the filter layer, the situation that part of liquid is mixed in the gas can be reduced, and the activated carbon is used for absorbing harmful gas, so that the situation of discharging the harmful gas is reduced.
Optionally, a liquid inlet pipe for introducing condensate is further arranged on the filtering tank.
By adopting the technical scheme, part of the water vapor is still in a gaseous state when entering the filter tank, so that the water vapor is separated from harmful gas by the aid of condensate liquid for assisting the liquefaction of the water vapor, the discharged water quantity is increased, and the recycling rate is improved.
Optionally, the heat exchange tube is spirally arranged, and the heat exchange tube covers the inside of the whole heat exchange tank.
By adopting the technical scheme, the spiral heat exchange tube and the cooling liquid have larger basic area, the stroke of high-temperature steam can be increased to a certain extent, the heat exchange time is prolonged to improve the heat exchange effect, and the situation that the high-temperature steam is not finished to exchange heat and is discharged is reduced.
Optionally, an exhaust fan is arranged at the air outlet pipe, and the exhaust fan faces the air outlet of the filter tank.
Through adopting above-mentioned technical scheme, set up exhaust fan in outlet duct department, through forming pressure differential, drive gas is discharged from the outlet duct, reduces the condition of gaseous deposit in the filtration jar bottom, promotes filtration efficiency.
Optionally, the filter tank includes a tank cover and a tank body, the tank cover is detachably connected with the tank body, a placing rack is arranged in the tank body, and the filter layer is placed on the placing rack.
Through adopting above-mentioned technical scheme, can dismantle between filter tank's the cover and the jar body and be connected, and the filter layer is for placing on the rack, consequently the staff can lift down the cover, takes out the filter layer and changes, reduces the filter layer and reaches the condition that loses the filter effect behind the upper limit of absorption to waste gas.
Optionally, a recovery tank for receiving cooling liquid is arranged on the lower side of the spray pipe.
By adopting the technical scheme, the sprayed and cleaned cooling liquid still has recycling value, so that the recovery tank is arranged to recover the cooling liquid, and the waste of resources is further reduced.
In summary, the utility model has at least the following advantages:
1. the utility model solves the problems that in the prior art, the production line directly discharges high-temperature steam to cause heat waste, the cost and the energy consumption are increased, and the energy conservation and the environmental protection are not facilitated.
2. According to the utility model, the filtering tank is used for discharging waste gas and waste liquid in an up-and-down layering manner, the gas passes through the filtering layer in the floating process, the harmful gas in the steam is collected and then discharged, and the water vapor enters the filtering tank after being condensed in a part in the heat exchange process and is further liquefied by the condensate liquid to be used as waste liquid to be discharged and reused, so that the environmental protection and energy saving effects are improved.
Drawings
Fig. 1 is a flow chart of the present embodiment.
Fig. 2 is a perspective view of the present embodiment.
Fig. 3 is a cross-sectional view of the heat exchange tank in this embodiment.
Fig. 4 is a cross-sectional view of the filter tank in this embodiment.
Reference numerals illustrate:
1. a heat exchange tank; 11. a heat exchange tube; 12. a water inlet pipe; 2. a vent pipe; 3. a filter tank; 31. a can lid; 32. a tank body; 33. a liquid discharge pipe; 34. an air outlet pipe; 341. an exhaust fan; 35. a filter layer; 351. a water-absorbing layer; 352. an activated carbon layer; 36. a liquid inlet pipe; 37. a placing rack; 4. a shower pipe; 41. a water pump; 42. a spray header; 43. heating the copper pipe; 5. a mesh portion; 6. a recovery pool;
Detailed Description
The utility model will be further described in detail by means of specific examples in connection with the accompanying drawings.
The utility model provides a multiplexing system of papermaking stoving waste heat recovery, as shown in fig. 1 and 2, including the dryer in proper order, heat transfer tank 1, filter tank 3, wire section 5, the dryer is equipped with steam line with the principle of roller in the dryer, thereby the steam line lets in has high temperature steam, thereby high temperature steam improves the temperature of dryer surface stoving paper, heat transfer tank 1 sets up behind the dryer, be equipped with heat exchange tube 11 in the heat transfer tank 1, heat exchange tube 11 and steam piping connection, still be equipped with inlet tube 12 and shower 4 on the heat transfer tank 1, be equipped with water pump 41 and shower 42 on the shower 4, shower 42 sets up towards the diapire of wire section 5, the downside of shower 4 is equipped with recovery tank 6, filter tank 3 sets up behind heat transfer tank 1, be equipped with 2 between filter tank 3 and the heat transfer tank 1, breather pipe 2 one end is connected with heat exchange tube 11, the other end is connected with filter tank 3. In specific implementation, the cooling liquid introduced from the water inlet pipe 12 is water, the net part 5 is the same equipment far away from the circulating conveyor belt, part of paper pulp is adhered to the net part 5 during transportation, the shower head 42 sprays heat-exchanged water towards the lower side of the net part 5 under the action of the water pump 41, so that residual pulp on the net part 5 is cleaned, and the cleaned water is communicated with the residual pulp and is recovered by the recovery tank 6.
As shown in fig. 2 and 3, the part of the heat exchange tube 11 extending into the heat exchange tank 1 is spirally arranged, the joint of the heat exchange tube 11 and the steam pipeline is positioned at the top end of the heat exchange tank 1, the joint of the heat exchange tube 11 and the ventilation pipe 2 is positioned at the bottom end of the heat exchange tank 1, and the heat exchange tube 11 covers the inside of the whole heat exchange tube 11. In specific implementation, the water inlet pipe 12 fills the heat exchange tank 1 with water, and the water wraps the heat exchange pipe 11 to exchange heat with high-temperature steam therein.
As shown in fig. 2 and 3, a heating copper pipe 43 is provided in the shower pipe 4. In particular, the copper heating tube 43 heats the water in the shower pipe 4. In other embodiments, a temperature sensor may be further disposed in the shower pipe 4 to detect whether the water in the shower pipe 4 needs to be heated and control the heating copper pipe 43, so that the increase of energy consumption caused by the continuous operation of the heating copper pipe 43 is reduced.
As shown in fig. 2 and 4, the filter tank 3 includes a tank cover 31 and a tank body 32, the tank cover 31 is detachably connected with the tank body 32, a drain pipe 33 is arranged at the lower part of the filter tank 3, an air outlet pipe 34 is arranged at the upper part of the filter tank 3, an air exhaust fan 341 is arranged at the air outlet pipe 34, the air exhaust fan 341 faces the air outlet of the filter tank 3, a placing rack 37 is arranged in the tank body 32, the placing rack 37 is arranged at the lower side of the air outlet pipe 34, a filter layer 35 is arranged on the placing rack 37, the filter layer 35 comprises a water absorption layer 351 and an activated carbon layer 352, the water absorption layer 351 is arranged on the activated carbon layer 352, the water absorption layer 351 can be made of sponge materials, a liquid inlet pipe 36 is further arranged on the side wall of the filter tank 3, and the liquid inlet pipe 36 is arranged between the filter layer 35 and the vent pipe 2. In specific implementation, cold water is introduced into the liquid inlet pipe 36 as condensate, the condensate further condenses the steam, the condition that part of the steam is not completely liquefied is reduced, and the gas floats upwards through the filter layer 35 and is discharged through the air outlet pipe 34.
Working principle: the dryer is put into high temperature steam to dry paper, then the high temperature steam is put into the heat exchange tank 1 along the pipeline, and a large temperature difference exists between the high temperature steam and the cooling liquid, so that the high temperature strives for exchanging heat with the cooling liquid, the high temperature steam after heat exchange is put into the filtering tank 3 to be subjected to gas-liquid separation and discharge, harmful gas is absorbed, and the cooling liquid after heat exchange is discharged from the spraying tank to be used for cleaning the net part 5.
The above is a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. The utility model provides a multiplexing system of papermaking stoving waste heat recovery which characterized in that: including dryer, heat transfer tank (1), filtration jar (3), wire section (5) in proper order, be equipped with the steam line that lets in stoving steam in the dryer, be equipped with heat exchange tube (11) in heat transfer tank (1), be full of coolant liquid and wrap up heat exchange tube (11) in heat transfer tank (1), steam line is connected with heat exchange tube (11), be equipped with on heat transfer tank (1) inlet tube (12) and breather pipe (2) that are used for letting in coolant liquid and let out steam, breather pipe (2) one end is connected with heat exchange tube (11), and the other end is connected with filtration jar (3), be equipped with shower (4) that are used for discharging coolant liquid on heat transfer tank (1), be equipped with shower head (42) on shower (4), shower head (42) are towards the bottom play water of wire section (5), shower head (42) are used for wasing the incomplete thick liquid on wire section (5).
2. The papermaking drying waste heat recovery multiplexing system according to claim 1, wherein: a heating copper pipe (43) for heating the cooling liquid is arranged in the spray pipe (4).
3. The papermaking drying waste heat recovery multiplexing system according to claim 1, wherein: the lower part of the filter tank (3) is provided with a liquid discharge pipe (33) for discharging liquid, the upper part of the filter tank (3) is provided with an air outlet pipe (34), and the inside of the filter tank (3) is provided with a filter layer (35) for absorbing harmful gas.
4. A papermaking drying waste heat recovery multiplexing system according to claim 3, wherein: the filter layer (35) is arranged on the lower side of the air outlet pipe (34), and the filter layer (35) comprises a water absorption layer (351) and an activated carbon layer (352).
5. A papermaking drying waste heat recovery multiplexing system according to claim 3, wherein: the filtering tank (3) is also provided with a liquid inlet pipe (36) for introducing condensate.
6. The papermaking drying waste heat recovery multiplexing system according to claim 1, wherein: the heat exchange tube (11) is spirally arranged, and the heat exchange tube (11) covers the inside of the whole heat exchange tank (1).
7. A papermaking drying waste heat recovery multiplexing system according to claim 3, wherein: an exhaust fan (341) is arranged at the air outlet pipe (34), and the exhaust fan (341) faces the air outlet of the filter tank (3).
8. A papermaking drying waste heat recovery multiplexing system according to claim 3, wherein: the filter tank (3) comprises a tank cover (31) and a tank body (32), the tank cover (31) is detachably connected with the tank body (32), a placing frame (37) is arranged in the tank body (32), and the filter layer (35) is placed on the placing frame (37).
9. The papermaking drying waste heat recovery multiplexing system according to claim 1, wherein: the lower side of the spray pipe (4) is provided with a recovery tank (6) for receiving cooling liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320889172.3U CN219670943U (en) | 2023-04-18 | 2023-04-18 | Papermaking stoving waste heat recovery multiplexing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320889172.3U CN219670943U (en) | 2023-04-18 | 2023-04-18 | Papermaking stoving waste heat recovery multiplexing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219670943U true CN219670943U (en) | 2023-09-12 |
Family
ID=87926118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320889172.3U Active CN219670943U (en) | 2023-04-18 | 2023-04-18 | Papermaking stoving waste heat recovery multiplexing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219670943U (en) |
-
2023
- 2023-04-18 CN CN202320889172.3U patent/CN219670943U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |