A cluster wind purification system for mobile intelligent dry coal preparation system

Abstract

The present invention provides a cluster wind purification system for a mobile dry intelligent coal selection system, which is suitable for a mobile intelligent dry coal selection system. The cluster wind purification system is an independent unit module, which includes a gas inlet and a purified gas outlet. The dusty gas enters the cluster wind purification system through the gas inlet, and the gas purified by the cluster wind purification system is discharged through the purified gas outlet. The cluster wind purification system reduces the manufacturing cost of the manufacturer, improves the efficiency of sorting and grading, and reduces energy consumption; further, in a mobile working environment, it improves resource utilization, saves energy and reduces emissions.

Description

Technical Field

[0001] The present invention belongs to the field of dry coal sorting, and specifically relates to a cluster wind purification system for a mobile intelligent dry coal sorting system, which is suitable for a full-particle-grade low-quality coal dry combined sorting system. Background Art

[0002] Coal is a solid combustible mineral that is gradually formed by ancient plants buried underground and undergoing complex biochemical and physical and chemical changes. Coal is known as black gold and food for industry. It has been one of the main energy sources used by the human world since the 18th century. Since the beginning of the 21st century, although the value of coal is not as high as before, it is still one of the indispensable sources of energy for our production and life at present and for a long time in the future. The supply of coal is also related to the stability of the development of my country's industry and even the entire society. The supply security of coal is also the most important link in my country's energy security.

[0003] Coal sorting is mainly divided into two directions: water washing and dry sorting. Water washing basically adopts jigging, heavy media, flotation and other processes. The disadvantages are large construction investment, long cycle, high production cost, and large water resource consumption and waste. The water consumption of washing 1 ton of raw coal is about 0.1m3. In addition, low-quality by-products such as coal slime will be produced. Dry sorting is a coal preparation method that has existed and developed slowly in the past 20 years. It has the advantages of no water, simple process, low investment and low production cost. The main representative process is wind dry coal preparation process. From the perspective of coal distribution area, the west accounts for 80.4% of the country, the central accounts for 15.2% of the country, and the east accounts for 4.4% of the country. The west is the main distribution area of ​​coal in my country, and it happens to be an arid and water-scarce area. Therefore, compared with water washing, dry sorting has broader demand and prospects. In a very short period of time, it has been widely promoted in my country and around the world. The water content, ash content and sulfur content of coal are important factors affecting coal quality. In order to improve the quality of coal, coal must be dehydrated and sorted. With the development of coal quality improvement technology, coal drying and dry separation processes have been widely used and achieved remarkable results.

[0004] In the process of coal drying or dry sorting, a large amount of dust-containing gas will inevitably be generated. Therefore, dust removal operations must be carried out for dust-containing gas. At present, the conventional dust removal equipment commonly used in domestic dry coal sorting equipment is electrostatic precipitator, spray dust removal, bag dust removal, etc. Because electrostatic precipitator technology requires the use of ionization equipment and generates electric sparks during the dust removal process, and coal is a flammable substance, it is often easy to cause the sorted coal to burn, thereby causing a decrease in coal sorting efficiency and coal quality. Spray dust removal is mainly to install a water spray device at the front end and after the sorting to increase the humidity of the coal and make it less likely to dust. However, spray dust removal faces the problems of large investment and huge water consumption. At the same time, it causes a large loss of coal calorific value and the coal slime cleaning further causes coal loss and increases the cost of coal slime treatment. In addition, the treatment effect is poor and cannot meet the national environmental protection standard of 10 mg / m3. Therefore, bag dust removal has been widely used and promoted in the dry coal sorting process.

[0005] However, the current coal dry sorting process uses conventional bag dust collectors for dust removal. Although its technical effect is better than that of electrostatic dust removal and spray dust removal, it also has many technical problems. Specifically: (1) The bags in the existing bag dust collectors have high water absorption, are easy to scale, are not anti-static, are not flame retardant, and have poor ventilation in long-term operation, which affects the dust removal effect; (2) The dust collector generates secondary pollution during the cleaning process; (3) Unreasonable and unscientific cleaning of the dust collector will cause energy loss; (4) The equipment is prone to aging, has high maintenance costs, a large maintenance workload, a short service life, and occupies a large area.

[0006] In particular, the amount of dry coal sorting in open-pit mining is very large, and conventional bag dust collectors are simply not suitable for such ultra-large-volume coal sorting operations. Therefore, it is urgent to improve the existing bag dust collectors and develop a purification and dust removal system suitable for dry coal sorting. Summary of the invention

[0007] Based on the problems existing in the prior art, the present invention provides a clustered wind purification system for a mobile intelligent dry coal preparation system, which not only solves the technical problems existing in the prior art, but also improves the processing capacity of coal sorting and realizes intelligent sorting in open-pit mines.

[0008] According to the technical solution of the present invention, a cluster wind purification system for a mobile intelligent dry coal preparation system is provided, which is suitable for the mobile intelligent dry coal preparation system. The cluster wind purification system is an independent unit module, which includes a gas inlet and a purified gas outlet. The dust-containing gas enters the cluster wind purification system through the gas inlet, and the gas purified by the cluster wind purification system is discharged through the purified gas outlet.

[0009] Preferably, the cluster wind purification system is an independent combination module in the mobile intelligent dry coal preparation system, and is arranged at any sorting stage or any sorting level of the intelligent dry coal preparation. The cluster wind purification system preferably adopts full bag dust removal and fresh air coal preparation.

[0010] More preferably, the cluster wind purification system for the mobile intelligent dry coal preparation system includes a skid-mounted base, a purification chamber and a purification chamber wall panel. The skid-mounted base is used for dragging the wind purification system, and is installed at the bottom of the cluster wind purification system; the cluster wind purification system includes multiple purification chambers and multiple purification chamber wall panels, each purification chamber wall panel surrounds a certain area, and the purification chamber wall panel is used to set the circulation range of the purified gas; several purification chambers are arranged in this area, and the dust-containing gas is purified and dust-removed in the purification chamber.

[0011] Furthermore, the cluster wind purification system includes a plurality of purification devices, and the plurality of purification devices are matched with a plurality of purification chambers in a one-to-one correspondence, and the purification devices and the purification chambers constitute a group of purification units.

[0012] Furthermore, the cluster wind purification system further includes a plurality of purification devices, and the plurality of purification devices are matched with a plurality of purification chambers in a one-to-many correspondence, and the one purification chamber and the plurality of purification devices constitute a group of purification units.

[0013] Preferably, the cluster wind purification system includes multiple groups of purification units, and the number of purification units selected is 4 to 10.

[0014] More preferably, the air inlets of the purification chambers in each group of purification units are combined into one unit air inlet, and multiple unit air inlets are combined into a gas inlet of the clustered wind purification system; the exhaust outlets of the purification chambers in each group of purification units are combined into one unit exhaust outlet, and multiple unit exhaust outlets are combined into a purified gas exhaust outlet of the clustered wind purification system.

[0015] Preferably, a purified gas collection area is provided on the upper part of the cluster type wind purification system, and the purified gas collection area collects the purified gases of the multiple groups of purification units included in the cluster type wind purification system and discharges them through the purified gas outlet.

[0016] In addition, a dust-containing gas collection area is arranged at the bottom of the cluster wind purification system, and the dust-containing gas from the gas inlet is distributedly supplied to the multiple purification units included in the cluster wind purification system through the dust-containing gas collection area.

[0017] The clustered wind purification system for a mobile intelligent dry coal preparation system of the present invention is suitable for open-pit mining and adapted to coal sorting operations with ultra-large processing volumes; further, it is suitable for operations in multiple occasions.

[0018] The cluster wind purification system of the mobile intelligent dry coal preparation system of the present invention reduces the manufacturing cost of the manufacturer, improves the efficiency of sorting and grading, and reduces energy consumption. Furthermore, in the mobile working environment, it plays an irreplaceable role in improving resource utilization, saving energy and reducing emissions, and reducing solid waste environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of an application scenario of a mobile intelligent dry coal preparation system using the cluster wind purification system of the present invention;

[0020] Figure 2 It is a structural schematic diagram of a cluster wind purification system according to the present invention.

[0021] The names of the components indicated by the reference numerals in the figures are as follows:

[0022] 1. Scraper conveyor for raw coal crushing; 2. Belt conveyor; 3. Grading screen; 4. Belt conveyor for fine coal; 5. Skid-mounted dry separator; 6. Scraper conveyor for fine clean coal; 7. Scraper conveyor for fine medium coal; 8. Scraper conveyor for fine gangue; 9. Blower; 10. Cluster wind purification system; 11. Induced draft fan; 12. Belt conveyor for lump coal; 13. IDS dry separator; 14. Belt conveyor for lump clean coal; 15. Belt conveyor for lump gangue; 41. Skid-mounted base; 42. Inspection door; 43. Purification chamber; 44. Purification chamber wall panel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] A cluster wind purification system for a mobile intelligent dry coal preparation system is provided, which is suitable for the mobile intelligent dry coal preparation system. The cluster wind purification system is an independent unit module, which includes a gas inlet and a purified gas outlet. The dusty gas enters the cluster wind purification system through the gas inlet, and the gas purified by the cluster wind purification system is discharged through the purified gas outlet. The cluster wind purification system can be used as an independent combination module in the mobile intelligent dry coal preparation system, and can be set at any sorting stage or any sorting level of the intelligent dry coal preparation. The cluster wind purification system preferably adopts full bag dust removal and clean air coal preparation.

[0025] like Figure 2As shown, the cluster wind purification system for the mobile intelligent dry coal preparation system includes a skid-mounted base 41, a purification chamber 43 and a purification chamber wall plate 44. The skid-mounted base 41 is used for dragging and installing the wind purification system. It is installed at the bottom of the cluster wind purification system and can move the cluster wind purification system as a whole. The cluster wind purification system includes multiple purification chambers 43 and multiple purification chamber wall plates 44. Each purification chamber wall plate 44 surrounds a certain area. The purification chamber wall plate 44 is used to set the circulation range of the purified gas. Several purification chambers 43 are arranged in the area, and the dust-containing gas is purified and dust-removed in the purification chamber 43. The cluster wind purification system further includes multiple purification devices. In one embodiment, multiple purification devices are matched with multiple purification chambers 43 in a one-to-one correspondence, that is, each purification device corresponds to a purification chamber 43, and the purification device and the purification chamber constitute a group of purification units; in another embodiment, multiple purification devices are matched with multiple purification chambers 43 in a one-to-many correspondence, that is, each purification chamber 43 corresponds to multiple purification devices, and the one purification chamber and multiple purification devices constitute a group of purification units. The cluster wind purification system includes multiple groups of purification units, and can be actually produced, and a plurality of groups of purification units can be selected for assembly and assembly, preferably 4 to 10 groups of purification units for assembly and assembly. In the present invention, a cluster wind purification system consisting of 5 groups of purification units is selected. The air inlet of the purification chamber in each group of purification units is combined into one unit air inlet, and multiple unit air inlets are combined into the gas inlet of the cluster wind purification system; correspondingly, the exhaust port of the purification chamber in each group of purification units is combined into one unit exhaust port, and multiple unit exhaust ports are combined into the purified gas exhaust port of the cluster wind purification system.

[0026] In one embodiment, a purified gas collection area is set at the upper part of the cluster wind purification system, and the purified gas collection area concentrates the purified gases of the multiple groups of purification units included in the cluster wind purification system and discharges them through the purified gas exhaust port; a dust-containing gas collection area is set at the lower part of the cluster wind purification system, and the dust-containing gas from the gas inlet is distributedly supplied to the multiple groups of purification units included in the cluster wind purification system via the dust-containing gas collection area.

[0027] Further, each group of purification units can form a one-to-one correspondence with the area surrounded by a purification chamber wall plate 44. The purification device is preferably a bag filter. More preferably, the purification device is preferably a keelless bag filter, the cylinder wall of the keelless bag filter is made of a material with a selective gas permeability function, and preferably a reinforcing fiber material with a reinforcing and ductile function is added to the cylinder wall.

[0028] According to production needs, the cluster wind purification system can be dragged to the designated production site, and then the cluster wind purification system can be fixed to the designated production site using a fixing mechanism; after completing the phased production task, the cluster wind purification system can be dragged and moved to the next production site. The wind purification system in the cluster wind purification system is used to purify the dust-containing gas generated by the previous sorting end, that is, the dust-containing gas enters from the gas inlet of the cluster wind purification system, and the clean gas after dust removal is discharged from the purified gas outlet of the cluster wind purification system. When using the cluster wind purification system, the dust-containing gas flows through the inner cylinder of the purification device, and the clean gas passes through the purification device through the dust removal effect of the purification device, that is, the clean gas penetrates from the inner cylinder of the purification device to the outer cylinder of the purification device and enters the purification chamber 43, and the clean gas passes through the purification chamber 43 and is discharged via the purified gas outlet.

[0029] The cluster wind purification system further includes a negative pressure draft system, a circulating wind working system and an automatic air volume distribution and control device. In the negative pressure draft system and the circulating wind working system, the automatic air volume distribution and control device is set to implement clean air coal selection. The negative pressure draft system is set at the upper part of the cluster wind purification system to generate negative pressure. The negative pressure acts on the purification device and generates negative pressure in the purification device, so that the dust-containing gas passes through the purification device from bottom to top, and is purified in the process of passing through the purification device. The automatic air volume distribution and control device is set in the dust-containing gas collection area of ​​the cluster wind purification system. It adjusts the air volume entering each purification device appropriately according to the data obtained by the pressure sensor and flow sensor set in the purification device. The circulating wind working system is used to circulate and purify the dust-containing gas. According to the data detected by the sensors such as dust concentration, impurities, inlet and outlet pressure difference set at the exhaust port of the purification device, it guides the dust-containing gas that has been purified once to undergo secondary purification, until multiple purifications.

[0030] Sensors for dust concentration, impurities, inlet and outlet pressure difference, etc. are set at the outlet of the purification device to automatically detect the dust concentration at the inlet and outlet of the dust collector and the inlet and outlet pressure difference. In addition, the cluster wind purification system realizes automatic backblowing and vibration of each purification device according to the change of resistance to maintain the best working state of the purification device. A coal powder and impurity collection area is set below the dust-containing gas collection area of ​​the cluster wind purification system, and a spray device is installed in the coal powder and impurity collection area. The coal powder removed by the purification device is collected in the coal powder and impurity collection area. The spray device is started when the coal powder reaches a certain value and controls the amount of water. The moisture content of the coal powder is measured through humidification and stirring through the spray device and the amount of water sprayed is controlled.

[0031] The cluster wind purification system for the mobile intelligent dry coal preparation system of the present invention adopts a large-capacity purification and dust removal technology. Compared with the prior art, the existing small-capacity bag purification and dust removal cannot be applied to the needs of large-volume sorting of the present invention. Therefore, the mobile intelligent dry coal preparation system of the present invention adopts a cluster wind purification system. The notable feature of the cluster wind purification system is that multiple dust removal units are used, and the dust removal chambers of the dust removal units are divided by purification chamber wall panels. The purification units formed by the purification chamber wall panels are surrounded by the large-capacity cluster wind purification system. The large-capacity cluster wind purification system is suspended in the purification unit. Preferably, multiple cluster wind purification systems are concentrated to one or more air inlets through a centralized pipeline, and the specific setting is based on the intensity of the on-site wind flow and the flow rate of the wind flow, especially the processing gas flow, filtering wind speed, dust removal efficiency, inlet dust concentration, emission concentration, filter bag specifications and quantity, dust removal skeleton specifications and quantity, electromagnetic pulse valve specifications and quantity, pressure loss, air leakage rate, steel consumption, induced draft fan specifications and models, length, width and height of the dust collector, etc. to select the number of air inlets. Furthermore, the purification device generally uses a purification device with a high permeability of 4-15 meters in length and 15-50 centimeters in diameter. The purification device in the present invention uses a cluster wind purification system without a keel and a dust removal frame, which is convenient for atmospheric airflow filtration. The anti-static fiber dust removal bag with a length of 6 meters and a diameter of 20 centimeters is preferred.

[0032] Furthermore, an inspection door 42 is provided on the side of the cluster wind purification system for the mobile intelligent dry coal preparation system. The inspection door 42 is used for daily maintenance or emergency troubleshooting. Preferably, the number of inspection doors is set according to the overall capacity of the cluster wind purification system. The inspection door is generally provided on the outside of the wind purification system and close to the skid-mounted base, so as to facilitate the entry and exit or entry of maintenance personnel.

[0033] The cluster wind purification system provided by this patent is suitable for a mobile intelligent dry coal preparation system, and the mobile intelligent dry coal preparation system is suitable for the sorting of full-size raw coal in open-pit mines. The "full-size raw coal" sorting of the present invention is substantially improved and very different from the "full-size" sorting previously used by the applicant. In the prior art, the technology of "full-size raw coal" sorting of the present invention has never appeared. The full-size sorting previously used by the applicant refers to and realizes the dry sorting of 0mm-80mm low-quality coal; the full-size raw coal sorting described in the present invention refers to the sorting of self-generated raw coal in the whole system, which includes the sorting of raw coal of all sizes; for giant lump coal with a particle size greater than 10 meters excavated from the mine, firstly perform a primary crushing into lump coal with a particle size less than 10 meters, and then enter the secondary crushing step of the present invention, and obtain lump coal with a particle size less than 300mm in the secondary crushing stage.

[0034] The mobile intelligent dry coal preparation system applicable to the cluster wind purification system of the present invention includes a combination of modular sorting modules and intelligent control systems, and realizes a serialized sorting combination design for raw coal; the modular sorting modules specifically include main modules such as transportation module, crushing module, sorting module, purification module and air supply module, and each of the main modules adopts a closed operation. The entire mobile intelligent dry coal preparation system adopts a skid-mounted design, and each main module constituting the mobile intelligent dry coal preparation system is transported to the site separately, and each module can be connected on site to be put into operation. No concrete is used during the installation process of the mobile intelligent dry coal preparation system. It is a completely steel structure module and can be quickly put into use all year round.

[0035] The above-mentioned mobile intelligent dry coal preparation system is equipped with an intelligent control system. It adopts digital management and can share information with the coal mine dispatching room center and connect online. The mobile intelligent dry coal preparation system adopts intelligent control, and each module is equipped with multiple measurement and control devices and data analysis software. No operator is required, realizing the "dark factory" design.

[0036] Combine the following Figure 1 Let's explain in detail the mobile intelligent dry coal preparation system applicable to the cluster wind purification system. Figure 1 As shown, the mobile intelligent dry coal preparation system includes a raw coal crushing scraper conveyor 1, a belt conveyor 2, a grading screen 3, a fine coal belt conveyor 4, a skid-mounted dry separator 5, a fine clean coal scraper conveyor 6, a fine medium coal scraper conveyor 7, a fine gangue scraper conveyor 8, a blower 9, a cluster wind purification system 10, an induced draft fan 11, a lump coal belt conveyor 12, an IDS dry separator 13, a lump clean coal belt conveyor 14 and a lump gangue belt conveyor 15.

[0037] The raw coal crushing scraper conveyor 1 crushes the raw coal and transfers the crushed raw coal to the belt conveyor 2 by scraper conveying method, and the crushed coal blocks are transported to the grading screen 3 via the belt conveyor 2. The grading screen 3 is arranged in the raw coal screening workshop. The grading screen 3 is used to screen the raw coal and divide the raw coal into two parts: raw coal with a particle size greater than 6 mm and raw coal with a particle size less than or equal to 6 mm; a fully sealed purification and dust removal system is arranged in the raw coal screening workshop, and the purification and dust removal system is used for dust removal in the raw coal screening workshop.

[0038] Furthermore, a fine coal belt conveyor 4 and a lump coal belt conveyor 12 are arranged at the rear end of the grading screen 3. The fine coal belt conveyor 4 is used to transport the raw coal from the grading screen 3 to the skid-mounted dry separator 5, and the lump coal belt conveyor 12 is used to transport the lump coal obtained by screening the grading screen 3 to the IDS dry separator 13. The IDS dry separator 13 is used to sort lump coal with a particle size of 80mm-300mm. Preferably, the IDS dry separator 13 uses an IDS X-ray intelligent lump coal separator, and the lump clean coal sorted by the IDS dry separator 13 is transported to the clean lump coal storage via the lump clean coal belt conveyor 14, and the gangue sorted by the IDS dry separator 13 is transported to the gangue storage via the lump gangue belt conveyor 15 or directly backfilled into the pit of the open-pit mine. The skid-mounted dry separator 5 is used for sorting raw coal with a particle size of 0-80 mm. The sorted coal powder with a particle size of 0-6 mm is directly sent to the coal powder bin for standby. The sorted clean coal with a particle size of 6 mm-80 mm is sent to the clean coal bin for transportation via the fine clean coal scraper conveyor 6. The sorted gangue is sent to the gangue bin for transportation via the fine gangue scraper conveyor 8. After transportation, the gangue is backfilled into the open-pit mine or used as building materials, etc.; the sorted medium coal is sent to the medium coal bin via the fine medium coal scraper conveyor 7, and enters the secondary sorting after transportation through the medium coal bin. Furthermore, a fully sealed cluster purification and dust removal system is provided on the skid-mounted dry sorting machine 5, so that there is no external leakage of pollutants in the entire system. The cluster purification and dust removal system removes dust via a cluster wind purification system 10, and a blower 9 is used to blow the dust-containing gas from the skid-mounted dry sorting machine 5 into the cluster wind purification system 10, and the clean gas filtered by the cluster wind purification system 10 is returned to the skid-mounted dry sorting machine 5 via an induced draft fan 11 for use.

[0039] The cluster wind purification system for the mobile intelligent dry coal preparation system of this patent is easy to move and disassemble, and can be moved regularly with the coal mining machine at the open-pit mining face. It can realize on-site purification and dust removal of the open pit, improving the coal mining efficiency. In addition, the cluster wind purification system for the mobile intelligent dry coal preparation system has the conditions for realizing prefabricated buildings. A large amount of on-site work can be completed in the production workshop, and only installation is required on site, achieving the purpose of reducing safety accidents and saving human resources.

[0040] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cluster wind purification system for a mobile intelligent dry coal preparation system, characterized in that: It is suitable for a mobile intelligent dry coal preparation system. The cluster wind purification system is an independent unit module, which includes a gas inlet and a purified gas outlet. The dusty gas enters the cluster wind purification system through the gas inlet, and the gas purified by the cluster wind purification system is discharged through the purified gas outlet. As an independent combined module in the mobile intelligent dry coal preparation system, the cluster wind purification system is set at any sorting stage or any sorting level of the intelligent dry coal preparation system. The cluster wind purification system preferably adopts full bag dust removal and clean air coal preparation; The cluster wind purification system further includes a negative pressure induced draft system, a circulating wind working system and an automatic air volume distribution and control device. In the negative pressure induced draft system and the circulating wind working system, the automatic air volume distribution and control device is set to implement clean air coal selection; the negative pressure induced draft system is set at the upper part of the cluster wind purification system to generate negative pressure, which acts on the purification device and generates negative pressure in the purification device, so that the dust-containing gas passes through the purification device from bottom to top, and is then purified in the process of passing through the purification device; the automatic air volume distribution and control device is set in the dust-containing gas collection area of ​​the cluster wind purification system, and appropriately adjusts the air volume entering each purification device according to the data obtained by the pressure sensor and flow sensor set in the purification device; the circulating wind working system is used to circulate and purify the dust-containing gas, and according to the data of the dust concentration, impurities and inlet and outlet pressure difference set at the exhaust port of the purification device, guides the dust-containing gas that has been purified once to undergo secondary purification, or even multiple purifications; An inspection door is provided on the side of the cluster wind purification system used for the mobile intelligent dry coal preparation system, and the inspection door is used for daily maintenance or emergency troubleshooting; The raw coal crushing scraper conveyor crushes the raw coal and uses a scraper conveying method to transfer the crushed raw coal to the belt conveyor, and the crushed coal blocks are transported to the grading screen via the belt conveyor. The grading screen is set up in the raw coal screening workshop. The grading screen is used to screen the raw coal and divide the raw coal into two parts: raw coal with a particle size greater than 6mm and raw coal with a particle size less than or equal to 6mm; a fully sealed purification and dust removal system is set up in the raw coal screening workshop, and the purification and dust removal system is used for dust removal in the raw coal screening workshop.

2. The cluster wind purification system for a mobile intelligent dry coal preparation system according to claim 1 is characterized in that: It comprises a skid-mounted base (41), a purification chamber (43) and a purification chamber wall plate (44); the skid-mounted base (41) is used for dragging and installing a wind purification system, and is installed at the bottom of a cluster wind purification system; the cluster wind purification system comprises a plurality of purification chambers (43) and a plurality of purification chamber wall plates (44); each purification chamber wall plate (44) surrounds a certain area; the purification chamber wall plate (44) is used to set the circulation range of the purified gas; a plurality of purification chambers (43) are arranged in the area, and the dust-containing gas is purified and dust-removed in the purification chamber (43).

3. The cluster wind purification system for a mobile intelligent dry coal preparation system according to claim 2 is characterized in that: The cluster wind purification system further comprises a plurality of purification devices, the plurality of purification devices are matched with the plurality of purification chambers (43) in a one-to-one correspondence, and the purification devices and the purification chambers constitute a group of purification units.

4. The cluster wind purification system for a mobile intelligent dry coal preparation system according to claim 2 is characterized in that: The cluster wind purification system further comprises a plurality of purification devices, and the plurality of purification devices are matched with a plurality of purification chambers (43) in a one-to-many correspondence, and the one purification chamber and the plurality of purification devices constitute a group of purification units.

5. The cluster wind purification system for a mobile intelligent dry coal preparation system according to any one of claims 3 or 4, characterized in that: The cluster wind purification system includes multiple groups of purification units.

6. The cluster wind purification system for a mobile intelligent dry coal preparation system according to claim 5 is characterized in that: The purification unit uses 4 to 10 groups of purification units.

7. The cluster wind purification system for a mobile intelligent dry coal preparation system according to claim 5 is characterized in that: The air inlets of the purification chambers in each group of purification units are combined into one unit air inlet, and multiple unit air inlets are combined into a gas inlet of the cluster wind purification system; the exhaust ports of the purification chambers in each group of purification units are combined into one unit exhaust port, and multiple unit exhaust ports are combined into a purified gas exhaust port of the cluster wind purification system.

8. The cluster wind purification system for a mobile intelligent dry coal preparation system according to claim 3 is characterized in that: A purified gas collection area is arranged on the upper part of the cluster wind purification system. The purified gas collection area collects the purified gases of the multiple groups of purification units included in the cluster wind purification system and discharges them through the purified gas outlet.

9. The cluster wind purification system for a mobile intelligent dry coal preparation system according to claim 3 is characterized in that: A dust-containing gas collection area is arranged at the lower part of the cluster wind purification system, and the dust-containing gas from the gas inlet is distributedly supplied to the multiple purification units included in the cluster wind purification system through the dust-containing gas collection area.

Images