CN221099276U - Production device for strengthening roasting process of metal oxide agglomerates - Google Patents
Production device for strengthening roasting process of metal oxide agglomerates Download PDFInfo
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- CN221099276U CN221099276U CN202321246858.7U CN202321246858U CN221099276U CN 221099276 U CN221099276 U CN 221099276U CN 202321246858 U CN202321246858 U CN 202321246858U CN 221099276 U CN221099276 U CN 221099276U
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 21
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 21
- 238000005728 strengthening Methods 0.000 title claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 136
- 238000001816 cooling Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000002791 soaking Methods 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims description 42
- 230000001172 regenerating effect Effects 0.000 claims description 24
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000010304 firing Methods 0.000 abstract description 10
- 238000007605 air drying Methods 0.000 abstract description 9
- 239000004484 Briquette Substances 0.000 abstract description 6
- 238000009736 wetting Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
A production apparatus for strengthening a metal oxide briquette firing process, the apparatus comprising a firing device (1); according to the trend of the materials, a first drying section (101), a second drying section (102), a third drying section (103), a preheating section (104), a roasting section (105), a soaking section (106), a first cooling section (107) and a second cooling section (108) are sequentially arranged on the roasting equipment (1); the air outlet of the cooling second section (108) is connected to the air inlet of the drying first section (101) through a first pipeline (L1); a second pipe (L2) branches off from the first pipe (L1) and is connected to the air inlet of the drying two-stage (102). According to the utility model, on the basis that the traditional roasting equipment is provided with only two drying sections, a new drying section is additionally arranged, and hot gas discharged from the cooling second section is respectively conveyed to the drying first section and the drying second section through the first pipeline and the second pipeline, so that the influence of excessive wetting on the upper part of a material layer of the traditional forced air drying section is weakened, and the roasting process is strengthened.
Description
Technical Field
The utility model relates to a roasting process of metal oxide agglomerates, in particular to a production device for strengthening the roasting process of metal oxide agglomerates, and belongs to the field of ferrous metallurgy and nonferrous metallurgy raw material preparation.
Background
The metal oxide agglomerate refers to an agglomerate obtained by finely grinding and granulating a metal oxide-containing material, including metal minerals and recycled materials from metallurgical plants, and is usually spherical, and then subjected to high-temperature roasting by a roasting machine to obtain a charge suitable for smelting, such as pellets.
The granulated metal oxide agglomerate needs to be dried in a roasting machine to remove water, then heated and preheated, and then roasted and cooled at high temperature to obtain the metallurgical furnace burden with the physical properties and metallurgical properties meeting the requirements.
In the prior art, during the drying and baking of the agglomerate, the drying stage is usually air-blast drying, so that the upper part of the material layer is excessively wet. Correspondingly, the temperature of the heat carrier in the second drying stage can be limited to be lower than 330 ℃ and the initial temperature of the preheating stage is lower than 400 ℃, so that the progress of the drying and roasting process is slower.
Disclosure of utility model
In view of the above-mentioned shortcomings in the prior art, the present utility model provides a production apparatus for strengthening the roasting process of metal oxide agglomerates. The device is added with a new drying process section on the basis that the traditional roasting equipment is provided with only two drying process sections, namely a drying first section, a drying second section and a drying third section, and hot gas discharged from the cooling second section is respectively conveyed to the drying first section and the drying second section through a first pipeline and a second pipeline, so that the influence of excessive wetting on the upper part of a material layer of the traditional forced air drying section is weakened, the next-following drying third section can adopt higher air flow temperature, the roasting process is enhanced, and the equipment productivity is greatly improved.
According to an embodiment of the present utility model, a production apparatus for strengthening a metal oxide lump firing process is provided.
A production apparatus for strengthening a metal oxide briquette baking process includes a baking device. According to the trend of the materials, the roasting equipment is sequentially provided with a first drying section, a second drying section, a third drying section, a preheating section, a roasting section, a soaking section, a first cooling section and a second cooling section. The air outlet of the cooling second section is connected to the air inlet of the drying first section through a first pipeline. The second pipeline is separated from the first pipeline and connected to the air inlet of the drying two-stage.
In the utility model, the air outlet of the cooling second section is connected to the air inlet of the bottom bellows of the drying first section via a first pipe, and a blower is arranged on the first pipe. The blower is located downstream of the location where the second conduit is connected to the first conduit.
In the present utility model, a second duct is branched from the first duct, and the second duct is connected to an air inlet at the top of the drying two-stage.
In the utility model, a third pipeline led out from air outlets of a bottom air box at the rear part of the roasting section and the soaking section is connected to an air inlet at the top of the drying three sections, and a regenerative fan is arranged on the third pipeline.
In the utility model, a fourth pipeline is separated from the third pipeline and connected to the air inlet of the preheating section, and the connection position of the fourth pipeline and the third pipeline is positioned at the downstream of the regenerative fan.
Preferably, the device further comprises a regulating valve. The regulating valve is arranged on the second pipeline. Preferably, the regulating valve is an electric regulating butterfly valve.
Preferably, the device further comprises a cool air valve. The cold air valve is arranged on the third pipeline and is positioned at the upstream of the regenerative fan. Preferably, the cold air valve is an electric regulating butterfly valve.
Preferably, the apparatus further comprises a pressure detector. The pressure detector is arranged in the furnace cover of the drying two-section.
Preferably, the apparatus further comprises a temperature detector. The temperature detector is arranged on the third pipeline and is positioned at the air inlet of the regenerative fan.
In the present utility model, the apparatus further comprises a control device. The control device is connected with the regulating valve, the cold air valve, the pressure detector and the temperature detector and controls the operation of the regulating valve, the cold air valve, the pressure detector and the temperature detector.
The conventional roasting equipment is generally provided with seven process sections of a drying section, a preheating section, a roasting section, a soaking section, a cooling section and a cooling section, the granulated metal oxide agglomerates are firstly dried in the drying section and the drying section of the roasting equipment (such as a belt type roasting machine) to remove water, then are heated and preheated in the preheating section, enter the roasting section to be roasted at high temperature, and then enter the cooling section and the cooling section to be cooled through the soaking section, so that the metallurgical furnace burden with physical properties and metallurgical properties meeting requirements is obtained. In the prior art, during the drying and firing of the metal oxide agglomerates, the drying stage is typically air-blast dried, so that the upper part of the layer is too wet. Accordingly, the temperature of the heat carrier in the drying secondary and preheating stages is also limited, so that the progress of the drying and roasting process is slow, thereby affecting the progress of the whole process.
In order to overcome the defects in the prior art, the utility model provides a production device for strengthening the roasting process of metal oxide agglomerates. The device is added with a new drying process section on the basis that the traditional roasting equipment is provided with only two drying process sections, namely a drying first section, a drying second section and a drying third section, and hot gas discharged from the cooling second section is respectively conveyed to the drying first section and the drying second section through a first pipeline and a second pipeline, so that the influence of excessive wetting on the upper part of a material layer of the traditional forced air drying section is weakened, the next-following drying third section can adopt higher air flow temperature, the roasting process is enhanced, and the equipment productivity is greatly improved.
In the present utility model, the production apparatus for the enhanced metal oxide briquette firing process includes a firing device. According to the trend of the materials, eight process sections such as a drying section, a preheating section, a roasting section, a soaking section, a cooling section and a cooling section are sequentially arranged on the roasting equipment. The air outlet of the cooling second section is connected to the air inlet of the drying first section through a first pipeline. The second pipeline is separated from the first pipeline and connected to the air inlet of the drying two-stage. The utility model sets three drying sections, and uses the hot gas (temperature is 200-330 ℃) discharged from the cooling two sections as the heat carrier of the drying one section and the drying two sections, so as to weaken the influence of the over-wet layer, so that the drying three sections immediately behind the drying three sections can adopt higher air flow temperature, the roasting process is strengthened, the roasting heat consumption is reduced, and meanwhile, part of the hot gas discharged from the cooling two sections enters the drying two sections for recycling without discharging, thereby reducing the exhaust emission.
Preferably, the air outlet of the cooling second section is connected to the air inlet of the bottom bellows of the drying first section via a first pipe, and a blower is arranged on the first pipe. The blower is located downstream of the location where the second conduit is connected to the first conduit. And a second pipeline is separated from the first pipeline and is connected to an air inlet at the top of the drying second section. And a third pipeline led out from the air outlets of the bottom bellows of the baking section and the soaking section is connected to the air inlet at the top of the drying section, and a regenerative fan is arranged on the third pipeline. That is, in the utility model, the air inlet of the first drying section is arranged on the bottom air box, the air inlet of the second drying section is arranged on the top furnace cover, and the air inlet of the third drying section is arranged on the top furnace cover. That is, the drying mode adopted in the first drying section is forced air drying, the drying mode adopted in the second drying section is induced draft drying, and the drying mode adopted in the third drying section is induced draft drying. The first drying section and the second drying section adopt forced air drying and induced draft drying respectively, namely the drying air flow directions of the two adjacent sections are opposite, and under the action of bidirectional drying air flow, the influence of over-wet on the upper part of the material layer of the traditional forced air drying section is greatly weakened, and correspondingly, the three adjacent drying sections can also adopt higher air flow temperature. The heat carrier of the drying three sections is hot air (namely, hot air returned by a bellows) discharged from the rear part of the roasting section and the material layer of the soaking section, so that the temperature of the drying three sections of heat carrier can be increased while the influence of the over-wet layer is weakened, the drying and preheating are enhanced, the initial temperature of the preheating section and the thickness of the material layer are increased, the roasting process is enhanced, the energy consumption is reduced, and the equipment productivity is greatly improved. In the prior art, the temperature of the heat carrier in the second drying stage is generally limited below 330 ℃ and the initial temperature of the preheating stage is lower than 400 ℃, so that the temperature of the heat carrier in the third drying stage, namely the temperature of the hot air returned by the bellows, can be increased from 330 ℃ to about 450 ℃, and the initial temperature of the preheating stage can be increased to about 500 ℃.
Further preferably, the present utility model provides a regulating valve (e.g., an electrically-operated butterfly valve) on the second conduit. A cold air valve (such as an electric regulating butterfly valve) is arranged on the third pipeline, and the cold air valve is positioned at the upstream of the hot air return fan. A pressure detector is arranged in the top furnace cover of the drying second section. And a temperature detector is arranged on the third pipeline and is positioned at the air inlet of the regenerative fan. The control device is connected with the regulating valve, the cold air valve, the pressure detector and the temperature detector and controls the operation of the regulating valve, the cold air valve, the pressure detector and the temperature detector. In the roasting process of the metal oxide agglomerate, the control device controls the pressure detector to detect the pressure of the furnace cover of the drying second section, and adjusts the opening of the regulating valve according to the corresponding pressure detection result. When the pressure detector detects that the pressure of the furnace cover of the drying second section is lower than a set value, the control device controls the opening of the regulating valve to be increased; otherwise, the opening of the regulating valve is reduced. Correspondingly, the control device controls the temperature detector to detect the temperature of the air inlet of the regenerative fan, and adjusts the opening of the cold air valve according to the corresponding temperature detection result. When the temperature detector detects that the temperature of the air inlet of the regenerative fan is higher than a set value, the control device adjusts and increases the opening of the cold air valve; otherwise, the opening of the cold air valve is reduced. The utility model reduces the influence of the over-wet layer and strengthens the roasting, and simultaneously, the pressure and the temperature of the furnace cover of the second drying section and the temperature of the air inlet of the back-heating fan are kept within the set range by detecting and adjusting the pressure and the temperature, thereby ensuring the smooth proceeding of the roasting process. The temperature of the air inlet of the regenerative fan is detected and regulated, namely the temperature of the heat carrier in the three drying sections is actually controlled, so that the strengthening effect of the scheme of the utility model on the roasting process is ensured.
In the present application, the setting value of the oven hood pressure of the drying two stage is-100 Pa to-50 Pa (e.g., -50 Pa). The temperature of the air inlet of the regenerative fan can be set as required, for example, the set value of the air inlet temperature of the regenerative fan is 450 ℃.
Compared with the prior art, the utility model has the following beneficial effects:
1. On the basis that the traditional roasting equipment is provided with only two drying process sections, the novel drying process section is additionally arranged, namely the novel drying process section comprises a first drying section, a second drying section and a third drying section, and hot gas discharged from the second cooling section is respectively conveyed to the first drying section and the second drying section through a first pipeline and a second pipeline, so that the influence of excessive wetting on the upper part of a material layer of the traditional forced air drying section is weakened, the next three drying sections can adopt higher air flow temperature, and the roasting process is strengthened.
2. In the utility model, the first drying section and the second drying section adopt forced air drying and induced draft drying respectively, namely, the directions of drying air flows of two adjacent sections are opposite, and under the action of bidirectional drying air flows, the influence of over-wet on the upper part of a material layer of the traditional forced air drying section is greatly weakened, correspondingly, the temperature of a heat carrier of the immediately following drying three sections can be increased to strengthen drying and preheating, and the initial temperature and the thickness of the material layer of the preheating section are increased, so that the roasting process is strengthened, the energy consumption is reduced, and the equipment productivity is greatly improved.
3. The utility model uses the hot gas discharged from the cooling second section as the heat carrier of the drying first section and the drying second section to weaken the influence of the over-wet layer, reduce the roasting heat consumption, and simultaneously, part of the hot gas discharged from the cooling second section enters the drying second section for recycling without discharging, thereby reducing the exhaust emission.
4. The utility model reduces the influence of the over-wet layer and strengthens the roasting, and simultaneously ensures that the pressure of the furnace cover of the drying second section and the temperature of the air inlet of the regenerative fan are kept within a set range by detecting and adjusting the pressure and the temperature, thereby ensuring the smooth implementation of the roasting process.
Drawings
FIG. 1 is a schematic structural view of a production apparatus for strengthening a metal oxide briquette firing process according to the present utility model;
FIG. 2 is a schematic diagram of a thermal system of a roasting apparatus of the prior art;
fig. 3 is a schematic diagram of a control device according to the present utility model.
Reference numerals:
1: roasting equipment; 101: drying for one section; 102: drying the second section; 103: drying for three sections; 104: a preheating section; 105: a roasting section; 106: a soaking section; 107: cooling the first section; 108: cooling the second section; 2: a blower; 3: a regenerative fan; 4: a regulating valve; 5: a cold air valve; 6: a pressure detector; 7: a temperature detector; k: a control device;
L1: a first pipe; l2: a second pipe; l3: a third conduit; l4: and a fourth pipeline.
Detailed Description
The following examples illustrate the technical aspects of the utility model, and the scope of the utility model claimed includes but is not limited to the following examples.
According to an embodiment of the present utility model, a production apparatus for strengthening a metal oxide lump firing process is provided.
A production apparatus for strengthening a metal oxide briquette baking process includes a baking apparatus 1. According to the trend of the materials, a first drying section 101, a second drying section 102, a third drying section 103, a preheating section 104, a roasting section 105, a soaking section 106, a first cooling section 107 and a second cooling section 108 are sequentially arranged on the roasting equipment 1. The air outlet of the cooling second section 108 is connected to the air inlet of the drying first section 101 via a first pipe L1. The second pipeline L2 is separated from the first pipeline L1 and is connected to an air inlet of the drying second section 102.
In the present utility model, the air outlet of the cooling two stage 108 is connected to the air inlet of the bottom windbox of the drying one stage 101 via a first duct L1, and a blower 2 is provided on the first duct L1. The blower 2 is located downstream of the point where the second duct L2 is connected to the first duct L1.
In the present utility model, a second duct L2 is branched from the first duct L1, and the second duct L2 is connected to an air inlet at the top of the drying section 102.
In the present utility model, a third pipe L3 led out from the air outlets of the bottom windboxes of the roasting section 105 and the soaking section 106 is connected to the air inlet at the top of the drying three section 103, and a heat recovery fan 3 is provided on the third pipe L3.
In the utility model, a fourth pipeline L4 is separated from the third pipeline L3 and is connected to the air inlet of the preheating section 104, and the connection position of the fourth pipeline L4 and the third pipeline L3 is positioned at the downstream of the regenerative fan 3.
Preferably, the device further comprises a regulating valve 4. The regulating valve 4 is arranged on the second pipe L2. Preferably, the regulating valve 4 is an electric regulating butterfly valve.
Preferably, the device further comprises a cool air valve 5. The cold air valve 5 is arranged on the third pipeline L3 and is positioned at the upstream of the regenerative fan 3. Preferably, the cold air valve 5 is an electric regulating butterfly valve.
Preferably, the device further comprises a pressure detector 6. The pressure detector 6 is arranged in the oven cover of the drying two-stage 102.
Preferably, the device further comprises a temperature detector 7. The temperature detector 7 is arranged on the third pipeline L3 and is positioned at the air inlet of the regenerative fan 3.
In the present utility model, the device further comprises a control device K. The control device K is connected with the regulating valve 4, the cold air valve 5, the pressure detector 6 and the temperature detector 7, and controls the operation of the regulating valve 4, the cold air valve 5, the pressure detector 6 and the temperature detector 7.
Example 1
As shown in fig. 1, a production apparatus for strengthening a metal oxide briquette firing process includes a firing device 1. According to the trend of the materials, a first drying section 101, a second drying section 102, a third drying section 103, a preheating section 104, a roasting section 105, a soaking section 106, a first cooling section 107 and a second cooling section 108 are sequentially arranged on the roasting equipment 1. The air outlet of the cooling second section 108 is connected to the air inlet of the drying first section 101 via a first pipe L1. The second pipeline L2 is separated from the first pipeline L1 and is connected to an air inlet of the drying second section 102.
Example 2
Example 1 was repeated except that the air outlet of the cooling two stage 108 was connected to the air inlet of the bottom windbox of the drying one stage 101 via the first duct L1, and that a blower 2 was provided on the first duct L1. The blower 2 is located downstream of the point where the second duct L2 is connected to the first duct L1.
Example 3
Example 2 was repeated except that a second line L2 was split from the first line L1, the second line L2 being connected to the air intake at the top of the drying section 102.
Example 4
Example 3 was repeated except that a third duct L3 led from the air outlet of the bottom windbox of the baking section 105 and the soaking section 106 was connected to the air inlet at the top of the drying three section 103, and a heat recovery fan 3 was provided on the third duct L3.
Example 5
Example 4 was repeated except that a fourth line L4 was branched from the third line L3 and connected to the air intake of the preheating section 104, and the connection position of the fourth line L4 and the third line L3 was located downstream of the heat recovery fan 3.
Example 6
Example 5 is repeated except that the device further comprises a regulating valve 4. The regulating valve 4 is arranged on the second pipe L2. The regulating valve 4 is an electric regulating butterfly valve.
Example 7
Example 6 was repeated except that the apparatus further included a cool air valve 5. The cold air valve 5 is arranged on the third pipeline L3 and is positioned at the upstream of the regenerative fan 3. The cold air valve 5 is an electric regulating butterfly valve.
Example 8
Example 7 was repeated except that the device also included a pressure detector 6. The pressure detector 6 is arranged in the oven cover of the drying two-stage 102.
Example 9
Example 8 is repeated except that the device further comprises a temperature detector 7. The temperature detector 7 is arranged on the third pipeline L3 and is positioned at the air inlet of the regenerative fan 3.
Example 10
As shown in fig. 3, example 9 is repeated except that the apparatus further comprises a control device K. The control device K is connected with the regulating valve 4, the cold air valve 5, the pressure detector 6 and the temperature detector 7, and controls the operation of the regulating valve 4, the cold air valve 5, the pressure detector 6 and the temperature detector 7.
Claims (16)
1. A production device for strengthening the roasting process of metal oxide agglomerates, which is characterized in that: the device comprises a roasting equipment (1); according to the trend of the materials, a first drying section (101), a second drying section (102), a third drying section (103), a preheating section (104), a roasting section (105), a soaking section (106), a first cooling section (107) and a second cooling section (108) are sequentially arranged on the roasting equipment (1); the air outlet of the cooling second section (108) is connected to the air inlet of the drying first section (101) through a first pipeline (L1); a second pipeline (L2) is separated from the first pipeline (L1) and is connected to an air inlet of the drying second section (102); the device also comprises a pressure detector (6); the pressure detector (6) is arranged in the furnace cover of the drying two-stage (102).
2. The production device according to claim 1, wherein: the air outlet of the cooling second section (108) is connected to the air inlet of the bottom air box of the drying first section (101) through a first pipeline (L1), and a blower (2) is arranged on the first pipeline (L1); the blower (2) is located downstream of the connection of the second duct (L2) to the first duct (L1).
3. The production device according to claim 1 or 2, characterized in that: a second pipe (L2) is branched from the first pipe (L1), and the second pipe (L2) is connected to an air inlet at the top of the drying section (102).
4. The production device according to claim 1 or 2, characterized in that: a third pipeline (L3) led out from the rear part of the roasting section (105) and the air outlet of the bottom air box of the soaking section (106) is connected to the air inlet at the top of the drying three section (103), and a regenerative fan (3) is arranged on the third pipeline (L3).
5. The production device according to claim 4, wherein: a fourth pipeline (L4) is separated from the third pipeline (L3) and connected to an air inlet of the preheating section (104), and the connection position of the fourth pipeline (L4) and the third pipeline (L3) is positioned at the downstream of the regenerative fan (3).
6. The production apparatus according to any one of claims 1, 2, 5, wherein: the device also comprises a regulating valve (4); the regulating valve (4) is arranged on the second pipeline (L2).
7. The production device according to claim 4, wherein: the device also comprises a regulating valve (4); the regulating valve (4) is arranged on the second pipeline (L2).
8. The production device according to claim 6, wherein: the regulating valve (4) is an electric regulating butterfly valve.
9. The production device according to claim 7, wherein: the regulating valve (4) is an electric regulating butterfly valve.
10. The production device according to claim 4, wherein: the device also comprises a cold air valve (5); the cold air valve (5) is arranged on the third pipeline (L3) and is positioned at the upstream of the regenerative fan (3).
11. The production apparatus according to any one of claims 5, 7, 9, wherein: the device also comprises a cold air valve (5); the cold air valve (5) is arranged on the third pipeline (L3) and is positioned at the upstream of the regenerative fan (3).
12. The production device according to claim 10, wherein: the cold air valve (5) is an electric regulating butterfly valve.
13. The production device according to claim 11, wherein: the cold air valve (5) is an electric regulating butterfly valve.
14. The production device according to claim 4, wherein: the device also comprises a temperature detector (7); the temperature detector (7) is arranged on the third pipeline (L3) and is positioned at the air inlet of the regenerative fan (3).
15. The production apparatus according to any one of claims 5, 7, 9, 10, 12, 13, characterized in that: the device also comprises a temperature detector (7); the temperature detector (7) is arranged on the third pipeline (L3) and is positioned at the air inlet of the regenerative fan (3).
16. The production device according to claim 15, wherein: the device also comprises a control device (K); the control device (K) is connected with the regulating valve (4), the cold air valve (5), the pressure detector (6) and the temperature detector (7) and controls the operation of the regulating valve (4), the cold air valve (5), the pressure detector (6) and the temperature detector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321246858.7U CN221099276U (en) | 2023-05-23 | 2023-05-23 | Production device for strengthening roasting process of metal oxide agglomerates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321246858.7U CN221099276U (en) | 2023-05-23 | 2023-05-23 | Production device for strengthening roasting process of metal oxide agglomerates |
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| CN221099276U true CN221099276U (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321246858.7U Active CN221099276U (en) | 2023-05-23 | 2023-05-23 | Production device for strengthening roasting process of metal oxide agglomerates |
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| Country | Link |
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| CN (1) | CN221099276U (en) |
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2023
- 2023-05-23 CN CN202321246858.7U patent/CN221099276U/en active Active
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