A multi-process flexible group production and flow splitting device for iron-containing surrounding rock and its flow splitting method

Abstract

The present invention discloses a multi-process flexible production grouping and diversion device for iron-containing surrounding rock and its diversion method, which relates to the technical field of comprehensive utilization of iron-containing surrounding rock. The multi-process flexible production grouping and diversion device for iron-containing surrounding rock includes the ground floor of the factory building, the second floor ground of the factory building, the third floor ground of the factory building and the outer wall of the factory building. A rough concentrate transfer belt is arranged on the ground floor of the factory building, and a row of rock belts are arranged through the outer wall of the factory building. The top of the second floor ground of the factory building is provided with a second row of rock belts. The multi-process flexible production grouping and diversion device for iron-containing surrounding rock and its diversion method adopt an online adjustable multi-process flexible production grouping in the first-stage coarse crushing and dry separation system. Through the online adjustable multi-process flexible production grouping process, the stable quality and quantity production of the whole series are ensured. At the same time, the online adjustable multi-system flexible production grouping method is used, which not only ensures the stable quality and quantity of the whole series production of the comprehensive utilization of surrounding rock, but also ensures the stable and smooth production of the rock discharging in the open-pit stope.

Description

Technical Field

[0001] The present invention relates to the technical field of comprehensive utilization of iron-containing surrounding rock, and specifically relates to a multi-process flexible production grouping and diversion device for iron-containing surrounding rock and a diversion method thereof. Background Art

[0002] With the rapid development of the iron and steel industry, the iron ore production capacity has been continuously improved, the stripping ratio of mines has been increasing year by year, and the amount of iron-containing surrounding rock stripped has been continuously increasing. Stacking a large amount of iron-containing surrounding rock in the waste dump not only occupies a large amount of land resources and damages the environment, but also requires a large amount of funds to be invested in treatment every year. In recent years, a few mining enterprises have actively explored and practiced in its comprehensive utilization. Most of them use the semi-continuous rock stripping process to crush and dry-separate part of the available magnetite from the iron-containing surrounding rock to reduce the amount of waste rock discharged. For some iron-containing surrounding rock with a high content of diorite porphyry and granodiorite porphyry, not only magnetite can be recovered, but also the remaining surrounding rock can be recovered as building stone to maximize the comprehensive utilization of iron-containing surrounding rock. This not only increases the mining efficiency, but also maximizes the reduction of the pressure and cost of waste dump environmental protection treatment.

[0003] At present, the production line process for the comprehensive utilization of iron-containing surrounding rock by the semi-continuous process in open-pit mines is still relatively extensive. Especially in the first-stage coarse crushing and dry separation process, the production process is simple, unable to respond in a timely manner to the variability of the raw materials in the stope, and the production stagnation and product quality problems caused by sudden situations of the production system equipment. Although some production processes can achieve the switching of some parallel systems through the regulation of flap valves, online regulation cannot be achieved, and the switching system is troublesome to operate and has a high labor intensity. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a multi-process flexible production grouping and diversion device for iron-containing surrounding rock and a diversion method thereof, which solves the problem that the production line process for the comprehensive utilization of iron-containing surrounding rock by the semi-continuous process in open-pit mines is still relatively extensive. Especially in the first-stage coarse crushing and dry separation process, the production process is simple, unable to respond in a timely manner to the variability of the raw materials in the stope, and the production stagnation and product quality problems caused by sudden situations of the production system equipment. Although some production processes can achieve the switching of some parallel systems through the regulation of flap valves, online regulation cannot be achieved, and the switching system is troublesome to operate and has a high labor intensity.

[0006] (2) Technical Solution To achieve the above objectives, the present invention is realized through the following technical solutions: A multi-process flexible production grouping and diversion device for iron-containing surrounding rock, including the ground floor of the factory building, the second floor ground of the factory building, the third floor ground of the factory building, and the outer wall of the factory building. A rough and fine ore transfer belt is arranged on the ground floor of the factory building. A row of rock belts is penetrated through the outer wall of the factory building. A second row of rock belts is arranged on the top of the second floor ground of the factory building. A second surrounding rock funnel and a rough and fine ore funnel are penetrated through the second floor ground of the factory building from left to right. A gate valve is arranged on the second surrounding rock funnel. A first surrounding rock funnel is arranged on the top of the second surrounding rock funnel. The feeding ports of the first surrounding rock funnel and the rough and fine ore funnel penetrate through the third floor ground of the factory building. A dry magnetic separator magnetic pulley, a protective cover, a ore distributor, and a gate valve type frame are respectively arranged on the third floor ground of the factory building;

[0007] The gate valve includes a portal frame. A gate valve body and an electric hoist for controlling the valve body are arranged on the portal frame. A gate valve slideway is arranged on the first surrounding rock funnel and is arranged in cooperation with it.

[0008] A multi-process flexible production grouping and diversion device for iron-containing surrounding rock and its diversion method, including the multi-process flexible production grouping and diversion device for iron-containing surrounding rock described above. The specific operations are as follows:

[0009] S1. In the open-pit iron ore mine, a semi-continuous waste dumping process is adopted. The surrounding rock is stripped by mining equipment and loaded onto mining trucks;

[0010] S2. It is transported by mining trucks to the raw material bin inside the mine and vibrated for feeding through a bar feeder. Small-particle materials enter the surrounding rock transfer belt through the sieve holes; large-particle materials are vibrated and sent to a jaw crusher to be crushed to qualified particle sizes and then sent to the surrounding rock transfer belt;

[0011] S3. The materials are sent to a dry magnetic separator for large-piece dry separation. The separated materials are sorted and diverted through a sorting funnel. The diversion process is as follows:

[0012] S31. Waste dumping process (the diversion gate valve is closed): Magnetite is sent to the rough and fine ore transfer belt and transported to the II-stage dry magnetic separation system. The surrounding rock is sorted to the waste dumping reversible belt and then reverse-transported to the waste dumping belt for discharging to the waste dump;

[0013] S32. Waste dumping process I (the diversion gate valve is opened in place and the waste dumping reversible belt stops): Magnetite is sent to the rough and fine ore transfer belt and transported to the II-stage dry magnetic separation system. The surrounding rock is discharged to the surrounding rock 1# processing system through the waste dumping belt;

[0014] S33. Waste dumping process II (the diversion gate valve is closed): Magnetite is sent to the rough and fine ore transfer belt and transported to the II-stage dry magnetic separation system. The surrounding rock is sorted to the waste dumping reversible belt and then forward-transported to the waste dumping belt for discharging to the surrounding rock 2# processing system;

[0015] S34. Full-series process: The magnetite is sent to the rough concentrate transfer belt and transported to the second-stage dry magnetic separation system. The surrounding rock adjusts the transportation volume of the waste rock belt and the waste rock belt by raising and lowering the diversion gate plate.

[0016] S4. After the surrounding rock reaches the sorting funnel, the magnetite and the surrounding rock are shunted by a ore splitter. The surrounding rock realizes shunting and closing by raising and lowering the ore splitter gate plate installed in the gate plate slideway through the electric hoist installed on the gantry.

[0017] The present invention provides a multi-process flexible production grouping and shunting device for iron-bearing surrounding rock and its shunting method, which has the following beneficial effects: The multi-process flexible production grouping and shunting device for iron-bearing surrounding rock and its shunting method adopt an online adjustable multi-process flexible production grouping in the first-stage coarse crushing and dry separation system. Through the online adjustable multi-process flexible production grouping process, the stable quality and quantity production of the whole series are ensured. At the same time, by using the online adjustable multi-system flexible production grouping method, not only the stable quality and quantity production of the comprehensive utilization of the surrounding rock in the whole series are ensured, but also the stable and smooth production of the waste rock discharge in the open-pit stope is ensured. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of a general surrounding rock recovery system;

[0019] Figure 2 It is a schematic diagram of the multi-system flexible production grouping and surrounding rock recovery;

[0020] Figure 3 It is a schematic diagram of the flip-type shunting;

[0021] Figure 4 It is a schematic diagram of the online adjustable gate plate type shunting;

[0022] Figure 5 It is a schematic diagram of the online adjustable gate valve.

[0023] 1.1, Raw material bin; 1.2, Jaw crusher; 1.3, Grizzly feeder; 1.4, Surrounding rock transfer belt; 1.5, Dry magnetic separator; 1.6, Sorting funnel; 1.7, Rough concentrate transfer belt; 1.8 Surrounding rock transfer belt; 1.9 Waste dump; 1.10, Section II dry magnetic separation system; 2.1, Raw material bin; 2.2, Jaw crusher; 2.3, Grizzly feeder; 2.4, Surrounding rock transfer belt; 2.5, Dry magnetic separator; 2.6, Sorting funnel; 2.7, Rock discharging reversible belt; 2.8, Rough concentrate transfer belt; 2.9, Rock discharging belt; 2.10, Original first rock discharging belt; 2.11, Original second rock discharging belt; 2.12, Section II dry magnetic separation system; 2.13, Surrounding rock #1 processing system; 2.14, Surrounding rock #2 processing system; 2.15, Waste dump; 3.1, Ground floor of Factory Building 1; 3.2, Second floor ground of Factory Building; 3.3, Third floor ground of Factory Building; 3.4 Exterior wall of factory building; 3.5, Magnetic pulley of dry magnetic separator; 3.6, Protective cover; 3.7, Ore distributor; 3.8, Surrounding rock funnel; 3.9, Flap valve; 3.10, Hydraulic push rod; 3.11, Rock discharging belt; 3.12, Rock discharging belt; 3.13 Rough concentrate transfer belt; 3.14 Rough concentrate funnel; 4.1, Ground floor of Factory Building 1; 4.2, Second floor ground of Factory Building; 4.3, Third floor ground of Factory Building; 4.4 Exterior wall of factory building; 4.5, Magnetic pulley of dry magnetic separator; 4.6, Protective cover; 4.7, Ore distributor; 4.8, Existing first surrounding rock funnel; 4.9, Gate valve; 4.10, Existing second surrounding rock funnel; 4.11, Existing first rock discharging belt; 4.12, Existing second rock discharging belt; 4.13 Rough concentrate transfer belt; 4.14 Rough concentrate funnel; 4.15 Gate valve type frame; 5.1, Gate valve body; 5.2, Gantry; 5.3, Gate slideway; 5.4, Electric hoist. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5, the present invention provides a technical solution: a multi-process flexible production grouping and diversion device for iron-bearing surrounding rock, including the ground floor 4.1 of the factory building, the ground floor 4.2 of the second floor of the factory building, the ground floor 4.3 of the third floor of the factory building, and the outer wall 4.4 of the factory building. A rough and fine ore transfer belt 4.13 is arranged on the ground floor 4.1 of the factory building. A row of rock belts 4.11 is penetrated through the outer wall 4.4 of the factory building. The top of the ground floor 4.2 of the second floor of the factory building is provided with a second row of rock belts 4.12. The second row of surrounding rock funnels 4.10 and the rough and fine ore funnels 4.14 are penetrated through the ground floor 4.2 of the second floor of the factory building from left to right. A gate valve 4.9 is arranged on the second row of surrounding rock funnels 4.10. The top of the second row of surrounding rock funnels 4.10 is provided with a first row of surrounding rock funnels 4.8. The feeding ports of the first row of surrounding rock funnels 4.8 and the rough and fine ore funnels 4.14 are penetrated through the ground floor 4.3 of the third floor of the factory building. A dry magnetic separator magnetic pulley 4.5, a shield 4.6, a ore distributor 4.7, and a gate valve type frame 4.15 are respectively arranged on the ground floor 4.3 of the third floor of the factory building;

[0026] The gate valve 4.9 includes a gantry frame 5.2. A gate valve body 5.1 and an electric hoist 5.4 for controlling the gate valve body 5.1 are arranged on the gantry frame 5.2. A gate slide 5.3 is arranged on the first row of surrounding rock funnels 4.8 and is arranged in cooperation with it.

[0027] A multi-process flexible production grouping and diversion device for iron-bearing surrounding rock and its diversion method, including the above-mentioned multi-process flexible production grouping and diversion device for iron-bearing surrounding rock, and the specific operation is as follows:

[0028] S1. In the open-pit iron ore mine, a semi-continuous waste-dumping process is adopted. The surrounding rock is stripped by mining equipment and loaded onto mining trucks;

[0029] S2. It is transported by mining trucks to the raw material bin 2.1 inside the mine and vibrated for feeding through a bar feeder 2.3. Small-particle materials enter the surrounding rock transfer belt 2.4 through the sieve holes; large-particle materials are vibrated and sent to a jaw crusher 2.2 for crushing to qualified particle sizes and then sent to the surrounding rock transfer belt 2.4;

[0030] S3. The materials are sent to a dry magnetic separator 2.5 for bulk dry separation. The dry-separated materials are sorted and diverted through a sorting funnel 2.6. The diversion process is as follows:

[0031] S31. Waste-dumping process (the diversion gate valve is closed): Magnetite is sent to the rough and fine ore transfer belt 2.8 and transported to the second-stage dry magnetic separation system 2.12. The surrounding rock is sorted to the waste-dumping reversible belt 2.7 and then reversely transported to the waste-dumping belt 2.10 and discharged to the waste-dumping site 2.15;

[0032] S32. Waste-dumping process I (the diversion gate valve is opened in place), and the waste-dumping reversible belt stops: Magnetite is sent to the rough and fine ore transfer belt 2.8 and transported to the second-stage dry magnetic separation system 2.12. The surrounding rock is discharged to the surrounding rock No. 1 processing system 2.13 through the waste-dumping belt 2.11;

[0033] S33, Waste Disposal Process II (shunt gate valve closed): The magnetite is transported to the dry magnetic separation system 2.12 in Section II via the rough concentrate transfer belt 2.8. The surrounding rock is sorted and transported to the waste rock reversible belt 2.7 and then to the waste rock belt 2.9 for discharge to the surrounding rock #2 processing system 2.14.

[0034] S34, Full series process: The magnetite is transported to the dry magnetic separation system 2.12 in Section II via the rough concentrate transfer belt 2.8. The transportation volume of the waste rock belt 2.9 and the waste rock belt 2.12 is adjusted by raising and lowering the shunt gate for the surrounding rock.

[0035] S4, After the surrounding rock reaches the sorting funnel, the magnetite and the surrounding rock are shunted by the ore splitter 4.7. The surrounding rock realizes shunting and closing by raising and lowering the ore shunt gate 5.1 placed in the gate slide 5.3 by the electric hoist 5.4 placed on the gantry 5.5.

[0036] In summary, for the multi-process flexible production grouping and shunting device for iron-bearing surrounding rock and its shunting method, in the first-stage primary crushing and dry separation system, online adjustable multi-process flexible production grouping is adopted. Through the online adjustable multi-process flexible production grouping process, stable quality and quantity production of the full series are ensured. At the same time, by using the online adjustable multi-system flexible production grouping method, not only the stable quality and quantity production of the comprehensive utilization of the surrounding rock in the full series are ensured, but also the stable and smooth production of waste rock disposal in the open-pit mine is guaranteed.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow splitting method for a multi-process flexible group production and flow splitting device for iron-bearing surrounding rock, characterized in that: It includes a multi-process flexible production grouping and diversion device for iron-bearing surrounding rock. The multi-process flexible production grouping and diversion device for iron-bearing surrounding rock includes the ground floor of the first floor of the factory building (4.1), the ground floor of the second floor of the factory building (4.2), the ground floor of the third floor of the factory building (4.3), and the outer wall of the factory building (4.4). A rough and fine ore transfer belt (4.13) is arranged on the ground floor of the first floor of the factory building (4.1). A row of rock belts (4.11) is arranged through the outer wall of the factory building (4.4). The top of the ground floor of the second floor of the factory building (4.2) is provided with a second row of rock belts (4.12). The ground floor of the second floor of the factory building (4.2) is successively provided with a second surrounding rock funnel (4.10) and a rough and fine ore funnel (4.14) from left to right. A gate valve (4.9) is arranged on the second surrounding rock funnel (4.10). The top of the second surrounding rock funnel (4.10) is provided with a first surrounding rock funnel (4.8). The feeding ports of the first surrounding rock funnel (4.8) and the rough and fine ore funnel (4.14) are arranged through the ground floor of the third floor of the factory building (4.3). A dry magnetic separator magnetic pulley (4.5), a shield (4.6), a ore distributor (4.7), and a gate valve type frame (4.15) are respectively arranged on the ground floor of the third floor of the factory building (4.3); The gate valve (4.9) includes a portal frame (5.2). A gate valve body (5.1) and an electric hoist (5.4) for controlling the gate valve body (5.1) are arranged on the portal frame (5.2). A gate valve slideway (5.3) is arranged on the first surrounding rock funnel (4.8) and is matched with it. The specific operation is as follows: S1. In the open-pit iron ore mine, the semi-continuous waste dumping process is adopted. The surrounding rock is stripped by the mining equipment and loaded onto the mining truck; S2. It is transported by the mining truck to the raw material bin (2.1) inside the mine field and vibrated for feeding through the bar feeder (2.3). The small-particle materials enter the surrounding rock transfer belt (2.4) through the sieve holes; the large-particle materials are vibrated and sent to the jaw crusher (2.2) for crushing to the qualified particle size and then sent to the surrounding rock transfer belt (2.4); S3. The materials are sent to the dry magnetic separator (2.5) for large-piece dry separation. The separated materials are sorted and diverted through the sorting funnel (2.6). The diversion process is as follows: S31. Waste dumping process, the diversion gate valve is closed: The magnetite is sent to the rough and fine ore transfer belt (2.8) and transported to the second-stage dry magnetic separation system (2.12). The surrounding rock is sorted to the waste dumping reversible belt (2.7), reversely transported to the waste dumping belt (2.10), and discharged to the waste dump (2.15); S32. Waste dumping process I, the diversion gate valve is opened in place, and the waste dumping reversible belt stops: The magnetite is sent to the rough and fine ore transfer belt (2.8) and transported to the second-stage dry magnetic separation system (2.12). The surrounding rock is discharged to the surrounding rock No. 1 processing system (2.13) through the waste dumping belt (2.11); S33. Waste dumping process II, the diversion gate valve is closed: The magnetite is sent to the rough and fine ore transfer belt (2.8) and transported to the second-stage dry magnetic separation system (2.12). The surrounding rock is sorted to the waste dumping reversible belt (2.7), positively transported to the waste dumping belt (2.9), and discharged to the surrounding rock No. 2 processing system (2.14); S34. Full series of processes: The magnetite is sent to the rough concentrate transfer belt (2.8) and transported to the second-stage dry magnetic separation system (2.12). The wall rock adjusts the transportation volume of the waste rock belt (2.9) and the waste rock belt (2.12) by lifting and lowering the diversion gate plate. S4. After the wall rock reaches the sorting funnel, the magnetite and the wall rock are shunted by the ore splitter (4.7). The wall rock realizes shunting and closing by lifting and lowering the gate valve body (5.1) placed in the gate slideway (5.3) through the electric hoist (5.4) placed on the gantry (5.2).

Images