Dedusting ash collecting and conveying system

Abstract

A dedusting ash collecting and conveying system is characterized by comprising a deduster, a conveying device, a recovery system and an extraction system, a discharge port of the dust remover is connected with the conveying device, and the tail end of the conveying device is connected with the recovery system and / or the extraction system. According to the utility model, the dedusting ash collected by the dust remover can be conveyed by adopting the conveying device, and is selectively conveyed into the extraction system and the recovery system at the tail end of the conveying device, so that the dedusting ash can be fully recycled in the sintering system. Dust is shunted on a conveying line, so that the flow of the whole conveying system is more compact, reasonable and smooth, and the construction cost of the system and a plant is reduced.

Description

Technical Field

[0001] The utility model relates to a dust removal ash conveying system, in particular to a dust removal ash collecting and conveying system, belonging to the sintering field in iron and steel metallurgy. Background Art

[0002] The steel industry is a pillar industry in China, and its energy consumption accounts for about 15% of the national energy consumption. From the analysis of the process flow of the steel industry, sintering, as the main energy-consuming process, has prominent disadvantages such as high energy consumption, high pollution, and low waste heat utilization. The sintering process is from the entry of raw fuel into the factory to the output of finished sintered ore, including fuel reception, fuel crushing, iron-containing material reception, batching, mixing, granulation, sintering, cooling, screening and whole grain, finished product sampling and finished product output. Sintering refers to the exhaust sintering of the mixed material under the negative pressure of the main exhaust fan after ignition, and the sintering belt moves forward evenly. As the sintering process proceeds, a large amount of sintering dust will continue to be generated, and then the dust will enter the dust collector for condensation, and then be captured and enter the sintering electrostatic dust ash conveying system.

[0003] At present, the electrostatic precipitator in the domestic dust collection and transportation system is generally divided into four electric fields. The dust collected in the first and second electric fields is captured and sent to the recovery system. The dust collected in the third and fourth electric fields is captured and sent to the extraction system because it contains high alkali metal elements such as K. The compounds formed by these alkali metal elements have low boiling points and directly volatilize into the flue gas during the high-temperature sintering process, or are reduced by coke to the corresponding elemental metal gas and escape, and condense in the dust collector, and then captured into the dust collected. If the sintering ash is directly re-dosed and recycled for many times, alkali metal elements such as K will gradually enrich, so that the sintering dust contains high alkali metal elements such as K, which significantly affects the dust removal efficiency and operational stability of the dust collector, resulting in excessive dust concentration in the flue gas discharged by the electrostatic precipitator and increased energy consumption of the device. Sintered ore with high content of alkali metal elements such as K will corrode the furnace lining when entering the blast furnace, affecting the long-term operation of the blast furnace, and the K element in the sintering dust is not recovered and wasted.

[0004] In the prior art, the dust ash conveying systems of the first and second electric fields and the third and fourth electric fields of the electrostatic precipitator are distinguished, and the dust ash of the first and second electric fields and the third and fourth electric fields are collected separately and processed independently. It cannot be adjusted according to the amount of dust ash generated and the processing capacity of different processing systems, and it is a fixed and unified processing mode. The dust ash of the first and second electric fields is collected by the dispersing scraper arranged below the first and second electric fields, and is transported to the storage bin of the recovery system on the five-layer platform, and then transported to the recovery system by the conveying device in the storage bin of the recovery system. The dust ash of the third and fourth electric fields is collected by the dispersing scraper arranged below the third and fourth electric fields, and is transported to the storage bin of the extraction system on the five-layer platform, and then transported to the extraction system by the conveying device in the storage bin of the extraction system. When the first and second electric fields and the third and fourth electric fields work at the same time, since the collection and conveying systems between the two are independent, the equipment operation load is large. When the first and second electric fields and the third and fourth electric fields collect dust ash and higher alkali metal elements such as K, it is not possible to selectively enter the extraction system and the recovery system. When the dust sent to the extraction system in the system reaches one million tons or more, the downstream processing pressure of the system is very large, the system structure is complex, the plant construction cost is high, and the dust sent to the extraction system cannot be fully recycled in the sintering system. Utility Model Content

[0005] According to the purpose of the utility model, a system with strong adaptability and capable of selectively collecting and transporting dust ash is provided. The system provided by the utility model can transport the dust ash collected by the dust collector by a unified conveying device, and the end of the conveying device can selectively transport the dust ash to an extraction system or a recovery system. The system provided by the utility model can also determine the flow direction of the dust ash in advance, and transport the dust ash collected by the dust collector by separate conveying devices (a first conveying device and a second conveying device), and then transport the dust ash on different conveying devices to an extraction system or a recovery system. By using the system provided by the utility model, the dust ash can be selectively transported to different systems according to the amount of dust ash collected by the dust collector and the respective processing capacities of the extraction system or the recovery system. By using the system provided by the utility model, the processing capacity of the dust ash is improved, and the processing conditions of the dust ash generated by different working conditions are adapted.

[0006] According to an embodiment of the utility model, a dust collection and conveying system is provided.

[0007] A dust collection and conveying system, characterized in that the system comprises a dust collector, a conveying device, a recovery system and an extraction system. The discharge port of the dust collector is connected to the conveying device, and the end of the conveying device is connected to the recovery system or the extraction system.

[0008] Preferably, both ends of the conveying device are connected to the recovery system and the extraction system.

[0009] In the utility model, a switching valve is provided on the conveying device, and the conveying device is connected with the recovery system or the extraction system through the switching valve.

[0010] In the utility model, the conveying device includes a first conveying device and a second conveying device. The first conveying device is connected to the recovery system. The second conveying device is connected to the extraction system. The discharge port of the dust collector is connected to the first conveying device or the second conveying device.

[0011] Preferably, the discharge port of the dust collector is connected to the first conveying device and the second conveying device.

[0012] Preferably, the discharge port of the dust collector is provided with a switching valve, and the discharge port of the dust collector is connected to the first conveying device or the second conveying device through the switching valve.

[0013] In the utility model, the system further comprises a lifting device. The feeding end of the lifting device is connected to the conveying device or the first conveying device. The discharging end of the lifting device is connected to the recovery system.

[0014] In the utility model, the system also includes a storage silo for the recovery system and a storage silo for the extraction system. The feed port of the storage silo for the recovery system is connected to the discharge end of the lifting device. The discharge end of the storage silo for the recovery system is connected to the recovery system. The feed end of the storage silo for the extraction system is connected to the second conveying device. The discharge end of the storage silo for the extraction system is connected to the extraction system.

[0015] In the utility model, the system also includes a first dispersing scraper. The first dispersing scraper is arranged at the discharge port where the dust collector is connected to the conveying device.

[0016] In the utility model, the system also includes a first dispersing scraper and a second dispersing scraper. The first dispersing scraper is provided at the discharge port where the dust collector is connected to the first conveying device. The second dispersing scraper is provided at the discharge port where the dust collector is connected to the second conveying device.

[0017] Preferably, the system further comprises a centralized scraper. A centralized scraper is arranged between the conveying device or the first conveying device and the lifting device.

[0018] In the utility model, the system further comprises a third conveying device and a fourth conveying device. The storage bin of the recovery system is connected to the recovery system via the third conveying device. The storage bin of the extraction system is connected to the extraction system via the fourth conveying device.

[0019] Preferably, the system further comprises a dust recovery trough, wherein the dust recovery trough is connected to the lifting device and the storage bin of the recovery system respectively.

[0020] In the utility model, the dust collector is an electrostatic dust collector. A plurality of electric fields are arranged inside the dust collector. Along the flow direction of the flue gas, the plurality of electric fields are divided into a first electric field and a second electric field. The first electric field includes a primary electric field and a secondary electric field. The second electric field includes a tertiary electric field and a quaternary electric field. A first dispersing scraper is arranged below the first electric field and the second electric field. A second dispersing scraper is also arranged below the second electric field.

[0021] In the utility model, the system also includes a dust collector hopper. A dust collector hopper is provided below the electric field. A first dispersing scraper is provided at the discharge port of the dust collector hopper. A second dispersing scraper is provided at the discharge port of the dust collector hopper below the third-level electric field and the fourth-level electric field and upstream of the first dispersing scraper.

[0022] In the utility model, the recovery system is a sintering batching bin.

[0023] Preferably, the extraction system is a salt extraction device.

[0024] The utility model aims at the multiple direct re-dosing and recycling of sintering ash, which gradually enriches alkali metal elements such as K, resulting in a high content of alkali metal elements such as K in the dust ash, which significantly affects the dust removal efficiency and operation stability of the dust collector, and provides a dust ash collection and transportation system. The utility model combines the extraction and transportation lines and the recovery and transportation lines into one, and sets multiple electric fields on the dust collector, and uses a unified transportation device for transportation. The end of the transportation device can selectively transport the dust ash to the extraction system or the recovery system. The dust ash can be fully recycled in the sintering system, reducing the pressure of the downstream processing system and the construction cost of multiple transportation lines, making the transportation system process more compact, reasonable and smooth.

[0025] In the utility model, the dust collection and conveying system is generally set to five layers but not limited to five layers, that is, a multi-layer structure, which is one layer, two layers, three layers, four layers, and five layers from bottom to top. The system includes a dust collector, a conveying device, a recovery system, and an extraction system. Among them, the dust collector is arranged on the fourth-layer platform of the dust collection and conveying system, and multiple electric fields are arranged in the dust collector, and the dust is collected centrally by the electric field. The discharge port of the dust collector is connected to the conveying device, and the end of the conveying device can be connected to the recovery system and the extraction system, or the end of the conveying device is connected to one of the recovery system and the extraction system separately, which can be connected according to specific circumstances, wherein the recovery system and the extraction system are arranged on the first-layer platform of the dust collection and conveying system. A switching valve is also arranged on the discharge port of the conveying device, so that the dust collected by the dust collector can be conveyed by a unified conveying device, and the dust can be selectively conveyed to the extraction system or the recovery system through the switching valve.

[0026] In the utility model, the conveying device includes a first conveying device and a second conveying device, and the first conveying device and the second conveying device are arranged on the first platform of the dust collection and conveying system. The discharge port of the dust collector is connected to the first conveying device and the second conveying device, or only one of them can be connected, and the connection can be made according to specific circumstances. The discharge port of the dust collector can be connected to the first conveying device and the second conveying device through a switching valve, which is convenient for different materials to be stored. The first conveying device is connected to the recovery system, and the dust transported is mostly ordinary dust. The second conveying device is connected to the extraction system, and the dust transported is mostly dust containing high alkali metal elements such as K.

[0027] In the utility model, a lifting device is arranged on the first platform of the dust collecting and conveying system, wherein the lifting device extends upward from the first platform to the fifth platform. The feeding end of the lifting device is connected to the conveying device or the first conveying device. The discharging end of the lifting device is connected to the recycling system. The lifting device enables the material to be thrown up in the lifting trough and move upward at the same time. After the material falls into the feeding trough, it begins to be thrown up, at which time the material can be fully contacted with the air, and can also play a role in heat dissipation and cooling.

[0028] In the utility model, a recovery system storage bin and an extraction system storage bin are arranged on the second platform of the dust collection and conveying system. A third conveying device and a fourth conveying device are arranged on the first platform. The feed port of the recovery system storage bin is connected to the discharge end of the lifting device. The discharge end of the recovery system storage bin is connected to the recovery system through the third conveying device. The feed end of the extraction system storage bin is connected to the second conveying device. The discharge end of the extraction system storage bin is connected to the extraction system through the fourth conveying device. The recovery system storage bin and the extraction system storage bin are arranged to ensure continuous, uniform and smooth material discharge in the subsequent process, so that the production process is carried out in an orderly and stable manner, and at the same time, it serves as a buffer area. In the system, a recovery system dust trough is also arranged between the lifting device and the recovery system storage bin, and the dust in the dust collector electric field can be concentrated in the recovery system dust trough on the fifth platform, and the dust in the recovery system dust trough can be sent to the recovery system.

[0029] In the utility model, a first dispersing scraper and a second dispersing scraper are arranged on the third platform of the dust collecting and conveying system, and a concentrating scraper is arranged on the second platform. A first dispersing scraper is arranged at the discharge port where the dust collector is connected to the first conveying device. A second dispersing scraper is arranged at the discharge port where the dust collector is connected to the second conveying device. A concentrating scraper is arranged between the conveying device or the first conveying device and the lifting device. The dust collected by the electric field through the first dispersing scraper and the second dispersing scraper is sent to the concentrating scraper or the extraction system. Among them, the dust generally sent to the extraction system contains relatively high alkali metal elements such as K. The concentrating scraper sends ordinary dust to the recovery system. After the dust is captured by the electric field, it is selectively transported on a unified conveying line, which reduces the establishment of production lines and fully recycles the dust.

[0030] In the utility model, the dust collector is an electrostatic precipitator, and a plurality of electric fields are also arranged in the dust collector. Along the direction of flue gas flow, the plurality of electric fields are divided into a first electric field and a second electric field, but the establishment of the electric field can be set to be multiple according to actual needs, not limited to the first electric field and the second electric field. Among them, the first electric field includes a primary electric field and a secondary electric field, and the second electric field includes a tertiary electric field and a quaternary electric field. Among them, a first dispersing scraper is provided below the first electric field and the second electric field. A second dispersing scraper is also provided below the second electric field. Generally, the primary electric field and the secondary electric field capture ordinary dust ash, which can be directly sent to the recovery system through the first dispersing scraper. The tertiary electric field and the quaternary electric field capture dust containing a high amount of alkali metal elements such as K, but there will also be dust that does not contain alkali metal elements such as K in the tertiary electric field and the quaternary electric field, so it is necessary to selectively transport the tertiary electric field and the quaternary electric field to the extraction system for extraction or the recovery system for recovery.

[0031] In the utility model, a dust collector hopper is also provided on the third-level platform of the dust collector ash collection and conveying system, and a first dispersing scraper is provided at the discharge port of the dust collector hopper. A second dispersing scraper is provided at the discharge port of the dust collector hopper below the tertiary electric field and the quaternary electric field, and upstream of the first dispersing scraper. The first dispersing scraper is mainly responsible for collecting the dust in the primary electric field and the secondary electric field and sending it to the recovery system. The second dispersing scraper provided at the discharge port of the dust collector hopper below the tertiary electric field and the quaternary electric field is mainly responsible for collecting the dust in the dust collector hopper of the tertiary electric field and the quaternary electric field and then selectively recovering the dust, and sending the dust containing alkali metal elements such as K in the tertiary electric field and the quaternary electric field to the extraction system, and sending the dust not containing alkali metal elements such as K to the recovery system.

[0032] In the utility model, the recovery system is a sintering batching bin, and the extraction system is a salt extraction device, which can be used to improve the flow environment and flow area of ​​dust in the bin, ensure continuous production, increase the flow rate of powder and extract substances from dust.

[0033] Compared with the prior art, the utility model has the following beneficial technical effects:

[0034] 1. In the utility model, the flow direction of dust ash can be determined in advance, and the dust ash collected by the dust collector is transported by an independent conveying device, so that the dust ash in the dust collector can be selectively sent to the extraction system or the recovery system, which is conducive to the classification and utilization of sintering electric dust ash. When the dust ash sent to the extraction system reaches one million tons, the downstream processing pressure can be reduced. The dust ash sent to the extraction system can be fully recycled in the sintering system.

[0035] 2. In the utility model, the sintering ash does not need to be re-dosed and recycled for multiple times. The alkali metal elements such as K are gradually enriched and recovered through the three-level electric field and the four-level electric field, so that the sintering dust containing higher alkali metal elements such as K is directly sent to the extraction system, which significantly affects the dust removal efficiency and operating stability of the dust collector.

[0036] 3. In the present invention, the first dispersing scraper and the second dispersing scraper can directly collect the dust from the primary electric field, the secondary electric field, the tertiary electric field and the quaternary electric field, collect and transport them on a unified line, and then selectively divert them at the end of the conveying device, making the entire conveying system process more compact, reasonable and smooth, and saving the cost of plant construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The utility model is a schematic diagram of the structure of a dust collection and transportation system.

[0038] Figure 2 It is a structural schematic diagram of the dust collector of the utility model connected with the extraction system and the recovery system.

[0039] Figure 3 It is a structural schematic diagram of the dust collector of the utility model being connected to the recovery system.

[0040] Figure 4 It is a structural schematic diagram of the dust collector of the utility model being connected to the extraction system.

[0041] Figure 5 It is a cross-sectional view of the storage silo and extraction system of the extraction system of the utility model.

[0042] Reference numerals:

[0043] A: dust collector; 1: conveying device; 101: first conveying device; 102: second conveying device; 103: third conveying device; 104: fourth conveying device; 2: recovery system; 3: extraction system; 4: lifting device; 5: storage silo of recovery system; 6: storage silo of extraction system; 7: first dispersing scraper; 8: second dispersing scraper; 9: concentrating scraper; 10: dust trough of recovery system; 11: electric field; 1101: primary electric field; 1102: secondary electric field; 1103: tertiary electric field; 1104: quaternary electric field; 12: dust collector hopper. DETAILED DESCRIPTION

[0044] The technical solution of the utility model is illustrated below, and the scope of protection requested for the utility model includes but is not limited to the following embodiments.

[0045] According to a first embodiment of the utility model, a dust collection and conveying system is provided.

[0046] A dust collection and conveying system, characterized in that the system comprises a dust collector A, a conveying device 1, a recovery system 2, and an extraction system 3. The discharge port of the dust collector A is connected to the conveying device 1, and the end of the conveying device 1 is connected to the recovery system 2 or the extraction system 3.

[0047] In the present invention, the ends of the conveying device 1 are connected to the recovery system 2 and the extraction system 3 .

[0048] In the utility model, a switching valve is provided on the conveying device 1, and the conveying device 1 is connected with the recovery system 2 or the extraction system 3 through the switching valve.

[0049] In the present invention, the conveying device 1 includes a first conveying device 101 and a second conveying device 102. The first conveying device 101 is connected to the recovery system 2. The second conveying device 102 is connected to the extraction system 3. The discharge port of the dust collector A is connected to the first conveying device 101 or the second conveying device 102.

[0050] In the present invention, the discharge port of the dust collector A is connected to the first conveying device 101 and the second conveying device 102 .

[0051] In the present utility model, the discharge port of the dust collector A is provided with a switching valve, and the discharge port of the dust collector A is connected to the first conveying device 101 or the second conveying device 102 through the switching valve.

[0052] In the present invention, the system further comprises a lifting device 4. The feeding end of the lifting device 4 is connected to the conveying device 1 or the first conveying device 101. The discharging end of the lifting device 4 is connected to the recovery system 2.

[0053] In the present invention, the system further comprises a recovery system storage silo 5 and an extraction system storage silo 6. The feed port of the recovery system storage silo 5 is connected to the discharge end of the lifting device 4. The discharge end of the recovery system storage silo 5 is connected to the recovery system 2. The feed end of the extraction system storage silo 6 is connected to the second conveying device 102. The discharge end of the extraction system storage silo 6 is connected to the extraction system 3.

[0054] In the present utility model, the system further comprises a first dispersing scraper 7. The first dispersing scraper 7 is arranged at the discharge port where the dust collector A is connected to the conveying device 1.

[0055] In the present utility model, the system further comprises a first dispersing scraper 7 and a second dispersing scraper 8. The first dispersing scraper 7 is provided at the discharge port where the dust collector A is connected to the first conveying device 101. The second dispersing scraper 8 is provided at the discharge port where the dust collector A is connected to the second conveying device 102.

[0056] In the present invention, the system further comprises a centralized scraper 9. A centralized scraper 9 is provided between the conveying device 1 or the first conveying device 101 and the lifting device 4.

[0057] In the present invention, the system further comprises a third conveying device 103 and a fourth conveying device 104. The recovery system storage silo 5 is connected to the recovery system 2 via the third conveying device 103. The extraction system storage silo 6 is connected to the extraction system 3 via the fourth conveying device 104.

[0058] In the present invention, the system further comprises a recovery system dust trough 10. The recovery system dust trough 10 is connected to the lifting device 4 and the recovery system storage silo 5 respectively.

[0059] In the utility model, the dust collector A is an electrostatic precipitator. A plurality of electric fields 11 are arranged inside the dust collector. Along the flow direction of the flue gas, the plurality of electric fields 11 are divided into a first electric field and a second electric field. The first electric field includes a primary electric field 1101 and a secondary electric field 1102. The second electric field includes a tertiary electric field 1103 and a quaternary electric field 1104. A first dispersing scraper 7 is arranged below the first electric field and the second electric field. A second dispersing scraper 8 is also arranged below the second electric field.

[0060] In the present utility model, the system further includes a dust collector ash hopper 12. A dust collector ash hopper 12 is provided below the electric field 11. A first dispersing scraper 7 is provided at the discharge port of the dust collector ash hopper 12. A second dispersing scraper 8 is provided at the discharge port of the dust collector ash hopper 6 below the tertiary electric field 1103 and the quaternary electric field 1104, and upstream of the first dispersing scraper 7.

[0061] In the present invention, the recovery system 2 is a sintering batching bin.

[0062] In the present invention, the extraction system 3 is a salt extraction device.

[0063] Example 1

[0064] like Figure 1 As shown, a dust collection and conveying system includes a dust collector A, a conveying device 1, a recovery system 2, and an extraction system 3. The discharge port of the dust collector A is connected to the conveying device 1, and the end of the conveying device 1 is connected to the recovery system 2.

[0065] Example 2

[0066] Repeat Example 1, a dust collection and conveying system, the system includes a dust collector A, a conveying device 1, a recovery system 2, and an extraction system 3. The discharge port of the dust collector A is connected to the conveying device 1, and the end of the conveying device 1 is connected to the extraction system 3.

[0067] Example 3

[0068] Repeat Example 2, a dust collection and conveying system, the system includes a dust collector A, a conveying device 1, a recovery system 2, and an extraction system 3. The discharge port of the dust collector A is connected to the conveying device 1, and the ends of the conveying device 1 are connected to the recovery system 2 and the extraction system 3.

[0069] Example 4

[0070] Example 3 is repeated, except that a switching valve is provided on the conveying device 1, and the conveying device 1 is connected to the recovery system 2 through the switching valve.

[0071] Example 5

[0072] Example 4 is repeated, except that a switching valve is provided on the conveying device 1, and the conveying device 1 is connected to the extraction system 3 through the switching valve.

[0073] Example 6

[0074] like Figure 2 As shown, Example 5 is repeated, except that the conveying device 1 includes a first conveying device 101 and a second conveying device 102. The first conveying device 101 is connected to the recovery system 2. The second conveying device 102 is connected to the extraction system 3. The discharge port of the dust collector A is connected to the first conveying device 101.

[0075] Example 7

[0076] Example 6 is repeated, except that the conveying device 1 includes a first conveying device 101 and a second conveying device 102. The first conveying device 101 is connected to the recovery system 2. The second conveying device 102 is connected to the extraction system 3. The discharge port of the dust collector A is connected to the second conveying device 102.

[0077] Example 8

[0078] Example 7 is repeated, except that the discharge port of the dust collector A is connected to the first conveying device 101 and the second conveying device 102.

[0079] Example 9

[0080] Example 8 is repeated, except that a switching valve is provided at the discharge port of the dust collector A, and the discharge port of the dust collector A is connected to the first conveying device 101 through the switching valve.

[0081] Example 10

[0082] Example 9 is repeated, except that a switching valve is provided at the discharge port of the dust collector A, and the discharge port of the dust collector A is connected to the second conveying device 102 via the switching valve.

[0083] Embodiment 11

[0084] like Figure 2 and Figure 3 As shown, Example 10 is repeated, except that the system further includes a lifting device 4. The feeding end of the lifting device 4 is connected to the conveying device 1. The discharging end of the lifting device 4 is connected to the recovery system 2.

[0085] Example 12

[0086] Example 11 is repeated, except that the system further comprises a lifting device 4. The feeding end of the lifting device 4 is connected to the first conveying device 101. The discharging end of the lifting device 4 is connected to the recovery system 2.

[0087] Embodiment 13

[0088] Example 12 is repeated, except that the system further includes a recovery system storage silo 5 and an extraction system storage silo 6. The feed port of the recovery system storage silo 5 is connected to the discharge end of the lifting device 4. The discharge end of the recovery system storage silo 5 is connected to the recovery system 2. The feed end of the extraction system storage silo 6 is connected to the second conveying device 102. The discharge end of the extraction system storage silo 6 is connected to the extraction system 3.

[0089] Embodiment 14

[0090] like Figure 1 and Figure 2 As shown, Example 13 is repeated, except that the system further includes a first dispersing scraper 7. A first dispersing scraper 7 is provided at the discharge port where the dust collector A is connected to the conveying device 1.

[0091] Embodiment 15

[0092] Example 14 is repeated, except that the system further includes a first dispersing scraper 7 and a second dispersing scraper 8. The first dispersing scraper 7 is provided at the discharge port where the dust collector A is connected to the first conveying device 101. The second dispersing scraper 8 is provided at the discharge port where the dust collector A is connected to the second conveying device 102.

[0093] Example 16

[0094] Example 15 is repeated, except that the system further includes a centralized scraper 9. A centralized scraper 9 is provided between the conveying device 1 and the lifting device 4.

[0095] Embodiment 17

[0096] The embodiment 16 is repeated, except that the system further includes a centralized scraper 9. A centralized scraper 9 is provided between the first conveying device 101 and the lifting device 4.

[0097] Embodiment 18

[0098] Example 17 is repeated, except that the system further includes a third conveying device 103 and a fourth conveying device 104. The recovery system storage silo 5 is connected to the recovery system 2 via the third conveying device 103. The extraction system storage silo 6 is connected to the extraction system 3 via the fourth conveying device 104.

[0099] Embodiment 19

[0100] The embodiment 18 is repeated, except that the system further comprises a recovery system dust trough 10. The recovery system dust trough 10 is connected to the lifting device 4 and the recovery system storage silo 5 respectively.

[0101] Embodiment 20

[0102] Example 19 is repeated, except that the dust collector A is an electrostatic dust collector. A plurality of electric fields 11 are arranged inside the dust collector. Along the flow direction of the flue gas, the plurality of electric fields 11 are divided into a first electric field and a second electric field. The first electric field includes a primary electric field 1101 and a secondary electric field 1102. The second electric field includes a tertiary electric field 1103 and a quaternary electric field 1104. A first dispersing scraper 7 is arranged below the first electric field and the second electric field. A second dispersing scraper 8 is also arranged below the second electric field.

[0103] Embodiment 21

[0104] Example 20 is repeated, except that the system further includes a dust collector hopper 12. A dust collector hopper 12 is provided below the electric field 11. A first dispersing scraper 7 is provided at the discharge port of the dust collector hopper 12. A second dispersing scraper 8 is provided at the discharge port of the dust collector hopper 6 below the tertiary electric field 1103 and the quaternary electric field 1104, and upstream of the first dispersing scraper 7.

[0105] Embodiment 22

[0106] Example 21 is repeated, except that the recovery system 2 is a sintering batching bin.

[0107] Embodiment 23

[0108] Example 22 is repeated, except that the extraction system 3 is a salt extraction device.

Claims

1. A dust collection and transportation system, characterized in that: The system comprises a dust collector (A), a conveying device (1), a recovery system (2), and an extraction system (3); the discharge port of the dust collector (A) is connected to the conveying device (1), and the end of the conveying device (1) is respectively connected to the recovery system (2) and / or the extraction system (3).

2. The system according to claim 1, characterized in that: The conveying device (1) is provided with a switching valve, and the conveying device (1) is connected to the recovery system (2) or the extraction system (3) via the switching valve.

3. The system according to claim 1, characterized in that: The conveying device (1) comprises a first conveying device (101) and a second conveying device (102); the first conveying device (101) is connected to the recovery system (2); the second conveying device (102) is connected to the extraction system (3); the discharge port of the dust collector (A) is connected to the first conveying device (101) and / or the second conveying device (102); Preferably, the discharge port of the dust collector (A) is provided with a switching valve, and the discharge port of the dust collector (A) is connected to the first conveying device (101) or the second conveying device (102) through the switching valve.

4. The system according to claim 2 or 3, characterized in that: The system further comprises a lifting device (4); the feeding end of the lifting device (4) is connected to the conveying device (1) or the first conveying device (101); and the discharging end of the lifting device (4) is connected to the recovery system (2).

5. The system according to claim 4, characterized in that: The system also includes a recovery system storage silo (5) and an extraction system storage silo (6); the feed port of the recovery system storage silo (5) is connected to the discharge end of the lifting device (4); the discharge end of the recovery system storage silo (5) is connected to the recovery system (2); the feed end of the extraction system storage silo (6) is connected to the second conveying device (102); and the discharge end of the extraction system storage silo (6) is connected to the extraction system (3).

6. The system according to claim 5, characterized in that: The system further comprises a first dispersing scraper (7); the first dispersing scraper (7) is provided at the discharge port where the dust collector (A) is connected to the conveying device (1); or The system further comprises a first dispersing scraper (7) and a second dispersing scraper (8); the first dispersing scraper (7) is provided at the discharge port where the dust collector (A) is connected to the first conveying device (101); the second dispersing scraper (8) is provided at the discharge port where the dust collector (A) is connected to the second conveying device (102); and / or The system also includes a centralized scraper (9); the centralized scraper (9) is provided between the conveying device (1) or the first conveying device (101) and the lifting device (4).

7. The system according to any one of claims 1 to 5, characterized in that: The system further comprises a third conveying device (103) and a fourth conveying device (104); the recovery system storage silo (5) and the recovery system (2) are connected via the third conveying device (103); the extraction system storage silo (6) and the extraction system (3) are connected via the fourth conveying device (104); and / or The system also comprises a recovery system dust trough (10); the recovery system dust trough (10) is respectively connected to the lifting device (4) and the recovery system storage bin (5).

8. The system according to any one of claims 1 to 7, characterized in that: The dust collector (A) is an electrostatic dust collector; a plurality of electric fields (11) are arranged inside the dust collector; along the flow direction of the flue gas, the plurality of electric fields (11) are divided into a first electric field and a second electric field; The first electric field comprises a primary electric field (1101) and a secondary electric field (1102); the second electric field comprises a tertiary electric field (1103) and a quaternary electric field (1104); a first dispersing scraper (7) is provided below both the first electric field and the second electric field; and a second dispersing scraper (8) is also provided below the second electric field.

9. The system according to claim 8, characterized in that: The system also includes a dust collector ash hopper (12); a dust collector ash hopper (12) is arranged below the electric field (11); a first dispersing scraper (7) is arranged at the discharge port of the dust collector ash hopper (12); a second dispersing scraper (8) is arranged at the discharge port of the dust collector ash hopper (6) below the tertiary electric field (1103) and the quaternary electric field (1104), and upstream of the first dispersing scraper (7).

10. The system according to any one of claims 1 to 9, characterized in that: The recovery system (2) is a sintering batching bin; and / or The extraction system (3) is a salt extraction device.

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