CN220912042U - Roasting furnace heat recycling device - Google Patents
Roasting furnace heat recycling device Download PDFInfo
- Publication number
- CN220912042U CN220912042U CN202322686462.0U CN202322686462U CN220912042U CN 220912042 U CN220912042 U CN 220912042U CN 202322686462 U CN202322686462 U CN 202322686462U CN 220912042 U CN220912042 U CN 220912042U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- heat recovery
- purifying box
- outlet
- filter plate
- 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.)
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- 238000004064 recycling Methods 0.000 title claims abstract description 10
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 7
- 238000010926 purge Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 10
- 239000002808 molecular sieve Substances 0.000 abstract description 10
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003345 natural gas Substances 0.000 abstract description 5
- 238000003915 air pollution Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 8
- 239000012535 impurity Substances 0.000 description 8
- -1 polytetrafluoroethylene Polymers 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to a roasting furnace heat recycling device, and belongs to the technical field of molecular sieve production. The hot blast stove comprises a heat recovery device, wherein an inlet of the heat recovery device is connected with an outlet of a draught fan through a first pipeline, and an outlet of the heat recovery device is connected with a hot blast stove through a second pipeline; the heat recovery device comprises a purifying box, a filtering component is arranged in the purifying box, an outlet of the purifying box is connected with the hot blast stove through a second pipeline, a third pipeline is arranged on the second pipeline, the second pipeline is communicated with the first pipeline through the third pipeline, and a harmful gas detector is arranged at the outlet of the purifying box. The utility model improves the initial temperature in the hot blast stove, reduces the consumption of natural gas, reduces air pollution, and realizes energy conservation, emission reduction, cost reduction and synergy.
Description
Technical Field
The utility model relates to a roasting furnace heat recycling device, and belongs to the technical field of molecular sieve production.
Background
The molecular sieve is produced through four technological processes including crystallization, filtering, exchange and roasting, and the final roasting step is to dry molecular sieve slurry in flash drier, spray the sprayed semi-finished molecular sieve product in roasting furnace for deep processing, sectional heating in the roasting furnace, absorbing the molecular sieve drier in the bag dust collector in the tail of the roasting furnace, and setting hot blast stove in one end of the flash drier to produce hot blast to the flash drier for providing heat for the flash drier. Part of heat in the roasting process is used for producing the molecular sieve, and the other part of heat is directly discharged into the atmosphere, so that not only is the environment polluted, but also the resource waste is caused.
Chinese patent (CN 202121202324.5) discloses a device for recovering and utilizing waste heat of a molecular sieve roasting furnace, which comprises a rotary roasting furnace arranged obliquely, wherein the rotary roasting furnace is connected with a smoke exhaust pipeline, and the smoke exhaust pipeline is connected to a conical storage bin and then connected to a chimney; the bottom of the conical storage bin is connected with a feeding auger and then connected to a microwave heating furnace, and the tail end of the microwave heating furnace is connected to the rotary roasting furnace through a pipeline; according to the utility model, the traditional directly discharged high-temperature flue gas is converted into the primary heating of the molecular sieve raw powder, so that part of heat originally lost can be effectively recycled, and the energy loss is reduced; meanwhile, when the molecular sieve raw powder is initially heated and dehydrated in the microwave heating furnace, the heating time of the microwave heating furnace can be shortened, so that the energy consumption of the microwave heating furnace is reduced, and the energy consumption can be greatly saved for a user.
The problems with the above patents are: although the heat in the high-temperature flue gas is recycled, the flue gas is not purified, so that a great amount of harmful gas and impurities exist in the discharged gas, and air pollution is caused.
Disclosure of utility model
The utility model aims to solve the technical problems that: the utility model overcomes the defects of the prior art, provides a roasting furnace heat recycling device, which improves the initial temperature in the hot blast stove, reduces the consumption of natural gas, reduces air pollution, and realizes energy conservation, emission reduction, cost reduction and synergy.
The utility model relates to a roasting furnace heat recycling device, which comprises a heat recycling device, wherein an inlet of the heat recycling device is connected with an outlet of a draught fan through a first pipeline, and an outlet of the heat recycling device is connected with a hot blast stove through a second pipeline;
the heat recovery device comprises a purifying box, a filtering component is arranged in the purifying box, an outlet of the purifying box is connected with the hot blast stove through a second pipeline, a third pipeline is arranged on the second pipeline, the second pipeline is communicated with the first pipeline through the third pipeline, and a harmful gas detector is arranged at the outlet of the purifying box.
The heat in the roasting furnace enters the purifying box through the first pipeline, flows out of the outlet of the purifying box after being filtered by the filtering component, and is detected by the harmful gas detector arranged at the outlet of the purifying box; if the gas is qualified, the gas enters the hot blast stove through the second pipeline, so that the initial temperature in the hot blast stove is increased, and the consumption of natural gas is reduced.
The periphery of the purifying box is provided with an insulating layer. Prevent heat from radiating out and improve heat recovery rate.
The filter assembly comprises a first filter plate and a second filter plate, wherein the first filter plate is close to the inlet of the purifying box, and the second filter plate is close to the outlet of the purifying box. The first filter plate is used for filtering impurities in gas, the second filter plate is used for neutralizing harmful gas, the first filter plate is arranged in front of the second filter plate, the purpose is to remove the impurities first, the second filter plate is prevented from being blocked by the impurities, and the neutralizing effect of the second filter plate is prevented from being influenced.
The first filter plate comprises a filter membrane and non-woven fabrics. The filtering membrane is made of polytetrafluoroethylene, and the polytetrafluoroethylene has the characteristics of temperature resistance, good ventilation, acid and alkali sulfur resistance and water resistance, and can not influence other passage when filtering impurities. And the strength of the first filter plate is ensured by the non-woven fabrics, and the service life of the first filter plate is greatly prolonged.
The first filter plate and the second filter plate are connected with the purifying box through bolts. Realize dismantling of first filter and second filter, when first filter and second filter appear damaging, need wash first filter, change the second filter, under the condition that does not damage first filter and second filter, realized the change of first filter and second filter.
The number of the first filter plates is two. The two first filter plates ensure better and more thorough filtering effect and avoid impurities from entering the second filter plate.
The number of the second filter plates is at least two. The neutralization of harmful gases can be realized by ensuring the gas to pass once.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the utility model, the heat recovery device and the pipeline are arranged, so that the heat is recovered and reused, the pipeline conveys the heat to the hot blast stove, the initial temperature in the hot blast stove is increased, the consumption of natural gas is reduced, the filtering component is arranged, the filtration of impurities in high-temperature gas and the neutralization of harmful gas are realized, and the air pollution is reduced.
(2) The periphery of the purifying box is provided with an insulating layer. Prevent heat from radiating out and improve heat recovery rate.
(3) The first filter plate comprises a filter membrane and a non-woven fabric. The filtering membrane is made of polytetrafluoroethylene, and the polytetrafluoroethylene has the characteristics of temperature resistance, good ventilation, acid and alkali sulfur resistance and water resistance, and can not influence other passage when filtering impurities. And the strength of the first filter plate is ensured by the non-woven fabrics, and the service life of the first filter plate is greatly prolonged.
Drawings
FIG. 1 is a schematic diagram showing the front view structure of embodiment 1 of the present utility model;
figure 2 is a schematic cross-sectional view of a first filter plate according to the utility model.
In the figure: 1. hot blast stove; 2. a roasting furnace; 3. a first pipeline; 4. a heat preservation layer; 5. a purifying box; 6. a second pipeline; 7. a first valve; 8. a second valve; 9. a second filter plate; 10. a first filter plate; 101. a filtering membrane; 102. a nonwoven fabric; 11. a third pipeline; 12. and (5) a draught fan.
Detailed Description
The utility model is further described below with reference to examples:
Example 1
As shown in fig. 1-2, the heat recovery and utilization device of the roasting furnace comprises a heat recovery device, wherein an inlet of the heat recovery device is connected with an outlet of a draught fan 12 through a first pipeline 3, and an outlet of the heat recovery device is connected with a hot blast stove 1 through a second pipeline 6;
The heat recovery device comprises a purifying box 5, a filtering component is arranged in the purifying box 5, an outlet of the purifying box 5 is connected with a hot blast stove 1 through a second pipeline 6, a first valve 7 is arranged at one end, close to the hot blast stove 1, of the second pipeline 6, a third pipeline 11 is arranged on the second pipeline 6, the second pipeline 6 is communicated with the first pipeline 3 through the third pipeline 11, a second valve 8 is arranged at one side, close to the second pipeline 6, of the third pipeline 11, and a harmful gas detector is arranged at the outlet of the purifying box 5. The periphery of the purifying box 5 is provided with an insulating layer 4.
The filter assembly comprises a first filter plate 10 and a second filter plate 9, the first filter plate 10 being arranged close to the inlet of the purge bin 5 and the second filter plate 9 being arranged close to the outlet of the purge bin 5. The first filter plate 10 comprises a filter membrane 101 and a nonwoven fabric 102. The first filter plate 10 and the second filter plate 9 are connected to the purge bin 5 by bolts. The number of first filter plates 10 is two. The number of second filter plates 9 is two.
The working process comprises the following steps:
The heat in the roasting furnace 2 enters the purifying box 5 through the first pipeline 3, is filtered by the first filter plate 10 and the second filter plate 9, flows out of the outlet of the purifying box 5, and is detected by a harmful gas detector arranged at the outlet of the purifying box 5, if the gas is unqualified in inspection, the first valve 7 is closed, the second valve 8 is opened, and the gas returns to the first pipeline 3 from the third pipeline 11 and enters the purifying box 5 again for purification; if the gas is checked to be qualified, the second valve 8 is closed, the first valve 7 is opened, and the gas enters the hot blast stove 1 through the second pipeline 6, so that the initial temperature in the hot blast stove 1 is increased, and the consumption of natural gas is reduced.
The description of the directions and the relative positional relationships of the structures, such as the description of the front, back, left, right, up and down, in the present utility model does not limit the present utility model, but is merely for convenience of description.
Claims (7)
1. The heat recovery and utilization device of the roasting furnace is characterized by comprising a heat recovery device, wherein an inlet of the heat recovery device is connected with an outlet of an induced draft fan (12) through a first pipeline (3), and an outlet of the heat recovery device is connected with a hot blast stove (1) through a second pipeline (6);
The heat recovery device comprises a purifying box (5), a filtering component is arranged in the purifying box (5), an outlet of the purifying box (5) is connected with the hot blast stove (1) through a second pipeline (6), a third pipeline (11) is arranged on the second pipeline (6), the second pipeline (6) is communicated with the first pipeline (3) through the third pipeline (11), and a harmful gas detector is arranged at the outlet of the purifying box (5).
2. The roasting furnace heat recycling device according to claim 1, wherein an insulating layer (4) is arranged on the periphery of the purifying box (5).
3. The calciner heat recovery and utilization device according to claim 1 or 2, characterized in that the filter assembly comprises a first filter plate (10) and a second filter plate (9), the first filter plate (10) being arranged close to the inlet of the clean box (5), the second filter plate (9) being arranged close to the outlet of the clean box (5).
4. A calciner heat recovery and utilization device according to claim 3, characterized in that the first filter plate (10) comprises a filter membrane (101) and a non-woven fabric (102).
5. A roasting furnace heat recovery apparatus according to claim 3, characterized in that the first filter plate (10) and the second filter plate (9) are connected to the purge bin (5) by bolts.
6. The furnace heat recovery apparatus according to claim 5, wherein the number of the first filter plates (10) is two.
7. The furnace heat recovery device according to claim 5, wherein the number of second filter plates (9) is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322686462.0U CN220912042U (en) | 2023-10-08 | 2023-10-08 | Roasting furnace heat recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322686462.0U CN220912042U (en) | 2023-10-08 | 2023-10-08 | Roasting furnace heat recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220912042U true CN220912042U (en) | 2024-05-07 |
Family
ID=90905496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322686462.0U Active CN220912042U (en) | 2023-10-08 | 2023-10-08 | Roasting furnace heat recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220912042U (en) |
-
2023
- 2023-10-08 CN CN202322686462.0U patent/CN220912042U/en active Active
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