Mine waste rock recovery pretreatment equipment

Abstract

The utility model discloses mine waste rock recovery pretreatment equipment which comprises a crushing device, a screening device and a sorting device, and a discharging port A of the crushing device corresponds to a feeding port B of the screening device. A first-level screen, a second-level screen and a third-level screen which can screen micro-fine particles, fine particles and coarse particles are sequentially arranged on a drum screen in the screening device from left to right, corresponding discharging ports B of all levels are formed below the screens of all levels, and a first-level sorting bin, a second-level sorting bin and a third-level sorting bin corresponding to the discharging ports B of all levels are arranged in the sorting device. The waste rock crushing and screening device has the functions that waste rock can be continuously and circularly crushed, screened and sorted through the crushing device, the screening device and the sorting device which are communicated with one another, the crushing and screening steps are simplified, the screening precision is not influenced, materials containing metal and the waste rock are distinguished, manpower and material resources can be saved, and the production efficiency is improved. And the production efficiency is improved, and the method is suitable for industrial production.

Description

Technical Field

[0001] This utility model patent belongs to the technical field of mineral processing equipment, and specifically relates to a mine waste rock recovery and pretreatment equipment. Background Art

[0002] Ore dressing is the most important link in the entire mineral production process and is a key department in mining companies. Generally, large-scale mining companies are resource-based enterprises that integrate mining, selection and smelting. The process of separating useful minerals from useless minerals (usually called gangue) or harmful minerals in mineral raw materials by physical or chemical methods, or separating multiple useful minerals is called ore dressing, also known as "mineral processing". Ore dressing can significantly improve the quality of mineral raw materials, reduce transportation costs, alleviate the difficulties of further processing, reduce processing costs, and realize the comprehensive utilization of mineral raw materials. my country is a country with rich mineral resources and a mining country. The large-scale storage of low-grade surrounding rocks (referred to as mine waste rocks) generated during mine construction and mining not only causes a large amount of waste of low-grade metal sulfide minerals contained, but also causes great damage to the environment and increases the pressure of safe production.

[0003] With the large-scale and high-speed development of my country's social construction, the demand for construction sand and gravel is strong. The traditional large-scale mining of natural sand has caused serious ecological damage, and natural sand mining has begun to be restricted. Therefore, machine-made sand will be produced in large quantities. However, the environmental and safety problems caused by the traditional sand making method of splitting mountains and blasting rocks are very prominent.

[0004] The surrounding rock components of my country's underground metal mines are mostly carbonate and granite types, with the main components being non-metallic minerals such as limestone, calcite, quartz, and a small amount of feldspar. Therefore, mining waste rock has natural utilization conditions, but due to its relatively small economic value, large output, complex composition, and difficulty in processing, there are currently few recycling production cases at home and abroad.

[0005] In the prior art, there is a comprehensive recovery process for metal mining waste rock, such as the one disclosed in Chinese patent (CN111790518B), which can process mining waste rock. However, the crushing and screening device for the waste rock in the pretreatment stage is too complicated, and different crushing devices are required for multi-stage crushing and screening. This method uses many devices and has complicated operating steps. At the same time, when performing multi-stage screening, the screened materials in each stage need to be transported to the next step, which will consume a lot of manpower and material resources, increase production costs, and is not conducive to industrial production.

[0006] In order to solve the above problems, this paper proposes a mine waste rock recovery pretreatment equipment. Utility Model Content

[0007] In order to achieve the above-mentioned technical effect, the utility model is implemented through the following technical scheme: a mine waste rock recovery pretreatment equipment, including a crushing device, a screening device, and a sorting device. The crushing device is installed on the left side of the screening device, and the sorting device is installed below the screening device. The discharge port A of the crushing device corresponds to the feed port B of the screening device. The drum screen in the screening device is provided with a primary screen, a secondary screen, and a tertiary screen from left to right for screening fine particles, fine particles, and coarse particles. Corresponding primary discharge ports B, secondary discharge ports B, and tertiary discharge ports B are arranged below each level of the screen. The sorting device is provided with primary sorting bins, secondary sorting bins, and tertiary sorting bins corresponding to the discharge ports B at each level.

[0008] Preferably, the crushing device also includes a base A, a crushing box, a rolling wheel group, a No. 1 driving motor, a synchronous belt, a pulley group, a feed port A, and a discharge port A. The crushing box is installed on the top of the base A, the rolling wheel group is installed in the crushing box, a pulley group is installed on the left driving end of the rolling wheel group, the pulley group is connected to the No. 1 driving motor through a synchronous belt, and the No. 1 driving motor is installed on the base A below the crushing box. The feed port A and the discharge port A are respectively provided on the upper and lower sides of the crushing box.

[0009] Preferably, the screening device also includes a screening box, a supporting roller group, a drum screen, a second drive motor, a large gear and a small gear. Symmetrical supporting roller groups are installed on the front and rear sides of the inner cavity of the screening box. The drum screen is rollingly installed on the supporting roller group through the slide grooves on its outer surface, and the slide grooves are respectively arranged between the various levels of screens. A large gear is arranged on the outer side of the rear end of the drum screen, and a small gear is meshed and connected above the large gear. The left side of the small gear is connected to the driving end of the No. 2 drive motor, and the No. 2 drive motor is installed on the right side of the top of the screening box.

[0010] Preferably, the screening box is provided with a feed port B and a discharge port C on the front and rear sides respectively, a primary discharge port B, a secondary discharge port B and a tertiary discharge port B on the bottom of the screening box, and a vibration motor is provided on the top left side of the screening box.

[0011] Preferably, a spiral guide rail and a supporting frame are provided inside the drum screen.

[0012] Preferably, the sorting bin further comprises an eddy current sorting device, a material separation plate, a material collection box, and a baffle. The eddy current sorting device is installed on the upper rear side of the inner cavity of the sorting bin. A material separation plate is installed on the sorting bin in front of the eddy current sorting device. A material collection box is arranged below the material separation plate, and a baffle is arranged on the front side of the material separation plate.

[0013] Preferably, the eddy current separation device further comprises a conveyor belt, a permanent magnet roller and a conveying roller, the conveyor belt is installed on the permanent magnet roller and the conveying roller, and the permanent magnet roller is installed on the front side of the conveying roller.

[0014] Preferably, the aggregate box is provided with a metal ore box and a waste rock box from front to back respectively.

[0015] The beneficial effects of the utility model are:

[0016] The device can continuously and cyclically crush, screen and sort waste rock through the interconnected crushing device, screening device and sorting device. The device simplifies the crushing and screening steps without affecting the screening accuracy, distinguishes metal-containing materials from waste rock, saves manpower and material resources, and improves production efficiency, and is suitable for industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a structural diagram of the utility model;

[0020] Figure 3 It is the front view of the utility model;

[0021] Figure 4 For this utility model Figure 3 A is a cross-sectional schematic diagram;

[0022] Figure 5 For this utility model Figure 3 Middle B is a cross-sectional schematic diagram;

[0023] Figure 6 It is a right side view of the utility model;

[0024] Figure 7 For this utility model Figure 6 The cross-sectional diagram of middle C;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] Crushing device 1, screening device 2, sorting device 3, base A4, crushing box 5, rolling wheel group 6, No. 1 driving motor 7, synchronous belt 8, pulley group 9, feed port A10, discharge port A11, feed port B12, primary screen 13, secondary screen 14, tertiary screen 15, primary discharge port B16, secondary discharge port B17, tertiary discharge port B18, discharge port C19, screening box 20, supporting roller group 21, drum screen 22, No. 2 driving motor 23, large gear 24, small gear 25, chute 26, vibration motor 27, spiral guide rail 28, supporting frame 29, primary sorting bin 30, secondary sorting bin 31, tertiary sorting bin 32, dividing plate 33, baffle 34, conveyor belt 35, permanent magnet roller 36, conveyor roller 37, metal ore box 38, waste rock box 39. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. Example 1

[0028] like Figures 1 to 7 As shown, the prior art in this embodiment has the following problems: the inventors have found that in the prior art, there is a comprehensive recovery process for metal mining waste rock, such as the one disclosed in Chinese patent (CN111790518B), which can process mine waste rock, but the crushing and screening device 2 of the waste rock in the pretreatment stage is too complicated, and different crushing devices 1 are required for multi-stage crushing and screening. This method uses many devices and has complicated operation steps. At the same time, when performing multi-stage screening, the screened materials in each stage need to be transported to the next step, which will consume a lot of manpower and material resources, increase production costs, and is not conducive to industrial production;

[0029] Therefore, the inventor provides a mining waste rock recovery pretreatment equipment, including a crushing device 1, a screening device 2, and a sorting device 3. The crushing device 1 is installed on the left side of the screening device 2, and the sorting device 3 is installed below the screening device 2. The discharge port A11 of the crushing device 1 corresponds to the feed port B12 of the screening device 2. The drum screen 22 in the screening device 2 is provided with a primary screen 13, a secondary screen 14, and a tertiary screen 15 that can screen fine particles, fine particles, and coarse particles from left to right. Below each level of the screen is a corresponding primary discharge port B16, a secondary discharge port B17, and a tertiary discharge port B18. The sorting device 3 is provided with a primary sorting bin 30, a secondary sorting bin 31, and a tertiary sorting bin 32 corresponding to each level of the discharge port B.

[0030] The device can continuously and cyclically crush, screen and sort waste rock through the interconnected crushing device 1, screening device 2 and sorting device 3. The device simplifies the crushing and screening steps without affecting the screening accuracy, distinguishes metal-containing materials from waste rock, can save manpower and material resources, and improves production efficiency, and is suitable for industrial production. Example 2

[0031] like Figures 1 to 7 As shown, derived from the above embodiments, the crushing device 1 provided in this embodiment also includes a base A4, a crushing box 5, a roller group 6, a No. 1 driving motor 7, a synchronous belt 8, a pulley group 9, a feed port A10, and a discharge port A11. The crushing box 5 is installed on the top of the base A4, the roller group 6 is installed in the crushing box 5, and a pulley group 9 is installed on the left driving end of the roller group 6. The pulley group 9 is connected to the No. 1 driving motor 7 through the synchronous belt 8. The No. 1 driving motor 7 is installed on the base A4 below the crushing box 5. The upper and lower sides of the crushing box 5 are respectively provided with a feed port A10 and a discharge port A11; this structure can crush the excavated waste rock and the waste rock that has not been screened out and discharge them into the drum screen 22 for screening. Example 3

[0032] like Figures 1 to 7 As shown, from the above embodiments, the screening device 2 provided in this embodiment also includes a screening box 20, a supporting roller group 21, a drum screen 22, a second drive motor 23, a large gear 24, and a small gear 25. Symmetrical supporting roller groups 21 are installed on the front and rear sides of the inner cavity of the screening box 20. The drum screen 22 is rollingly installed on the supporting roller group 21 through the slide grooves 26 on its outer surface, and the slide grooves 26 are respectively arranged between the screens of each level. A large gear 24 is arranged on the outer side of the rear end of the drum screen 22, and a small gear 25 is meshed and connected above the large gear 24. The left side of the small gear 25 is connected to the driving end of the second drive motor 23, and the second drive motor 23 is installed on the right side of the top of the screening box 20; the supporting roller group 21 in this structure can provide stable support for the drum screen 22, and the stability of its power transmission can be ensured by gear transmission between the drum screen 22 and the second drive motor 23.

[0033] Among them, the front and rear sides of the screening box 20 are respectively provided with a feed port B12 and a discharge port C19, the bottom of the screening box 20 is provided with a first-level discharge port B16, a second-level discharge port B17, and a third-level discharge port B18, and a vibration motor 27 is provided on the top left side of the screening box 20; the discharge port C19 arranged in the structure can discharge the waste rock that has not been screened out of the drum screen 22 so that it can be collected and crushed and screened again; the discharge ports B at various levels designed at the bottom of the screening box 20 can discharge the screened materials of different particle sizes into the sorting bins at various levels respectively, without consuming manpower for transportation and delivery; the design of the vibration motor 27 can avoid clogging of the screen.

[0034] Among them, a spiral guide rail 28 and a support frame 29 are arranged on the inner side of the drum screen 22; the spiral guide rail 28 in this structure can guide and stir the ore from left to right when the drum screen 22 rolls, thereby avoiding blockage caused by ore accumulation and improving the ore screening efficiency; and the support frame 29 can increase the stability of the drum screen 22 and extend its service life. Example 4

[0035] like Figures 1 to 7 As shown, derived from the above embodiments, the sorting bin provided in this embodiment also includes an eddy current sorting device 3, a dividing plate 33, a collecting box, and a baffle 34. The eddy current sorting device 3 is installed on the upper rear side of the inner cavity of the sorting bin, and a dividing plate 33 is installed on the sorting bin in front of the eddy current sorting device 3. A collecting box is arranged below the dividing plate 33, and a baffle 34 is arranged on the front side of the dividing plate 33. In this structure, the dividing plate 33 can cooperate with the eddy current sorting device 3 to separate the sorted and falling materials, and then separate and collect them in the collecting box, while the baffle 34 can prevent the materials from splashing out of the sorting bin.

[0036] Among them, the eddy current separation device 3 also includes a conveyor belt 35, a permanent magnet roller 36, and a conveying roller 37. The conveyor belt 35 is installed on the permanent magnet roller 36 and the conveying roller 37, and the permanent magnet roller 36 is installed on the front side of the conveying roller 37. This structure can separate metal-containing particles and non-metallic waste rocks from particles of the same diameter.

[0037] The aggregate box is provided with a metal ore box 38 and a waste rock box 39 from the front to the back; this structure can conveniently collect metal-containing particles and non-metallic waste rock separately.

[0038] The working principle of the utility model is:

[0039] When the crushed waste rock enters the drum screen 22, the waste rock can be turned over by the rotation of the drum screen 22, and guided by the spiral guide rail 28, so that the waste rock can be continuously screened, and the large pieces of waste rock that have not been screened are discharged from the discharge port C19, and can be put into the crushing device 1 for crushing after collection, and the cycle is repeated until all the waste rock materials are crushed and screened out, wherein the process of feeding the mobile phone box can be completed by a transmission device (conveyor belt 35), saving labor costs; as described above, the screened materials are discharged from the discharge ports B at each level to the corresponding sorting bins at each level, and the sorting bins at each level separate the waste rock and metal ore in the materials through the eddy current sorting device 3.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mining waste rock recovery and pretreatment equipment, including a crushing device, a screening device, and a sorting device, characterized in that: The crushing device is installed on the left side of the screening device, and a sorting device is installed below the screening device. The discharge port A of the crushing device corresponds to the feed port B of the screening device. The drum screen in the screening device is provided with a primary screen, a secondary screen, and a tertiary screen from left to right for screening fine particles, fine particles, and coarse particles. Below each level of the screen is a corresponding primary discharge port B, a secondary discharge port B, and a tertiary discharge port B. The sorting device is provided with a primary sorting bin, a secondary sorting bin, and a tertiary sorting bin corresponding to each level of the discharge port B.

2. The mining waste rock recovery and pretreatment equipment according to claim 1 is characterized by: The crushing device also includes a base A, a crushing box, a rolling wheel group, a No. 1 driving motor, a synchronous belt, a pulley group, a feed port A, and a discharge port A. The crushing box is installed on the top of the base A, the rolling wheel group is installed in the crushing box, a pulley group is installed on the left driving end of the rolling wheel group, the pulley group is connected to the No. 1 driving motor through a synchronous belt, and the No. 1 driving motor is installed on the base A below the crushing box. The feed port A and the discharge port A are respectively arranged on the upper and lower sides of the crushing box.

3. The mining waste rock recovery and pretreatment equipment according to claim 1 is characterized by: The screening device also includes a screening box, a supporting roller group, a drum screen, a second drive motor, a large gear and a small gear. Symmetrical supporting roller groups are installed on the front and rear sides of the inner cavity of the screening box. The drum screen is rollingly installed on the supporting roller group through the slide grooves on its outer surface, and the slide grooves are respectively arranged between the various levels of screens. A large gear is arranged on the outer side of the rear end of the drum screen, and a small gear is meshed and connected above the large gear. The left side of the small gear is connected to the driving end of the No. 2 drive motor, and the No. 2 drive motor is installed on the right side of the top of the screening box.

4. The mining waste rock recovery and pretreatment equipment according to claim 3 is characterized by: The screening box is provided with a feed port B and a discharge port C on the front and rear sides respectively, a primary discharge port B, a secondary discharge port B and a tertiary discharge port B on the bottom of the screening box, and a vibration motor is provided on the left side of the top of the screening box.

5. The mining waste rock recovery and pretreatment equipment according to claim 3 is characterized by: The inner side of the drum screen is provided with a spiral guide rail and a supporting frame.

6. The mining waste rock recovery and pretreatment equipment according to claim 1 is characterized by: The sorting bin also includes an eddy current sorting device, a material separation plate, a material collection box, and a baffle. The eddy current sorting device is installed on the upper rear side of the inner cavity of the sorting bin. A material separation plate is installed on the sorting bin in front of the eddy current sorting device. A material collection box is arranged below the material separation plate, and a baffle is arranged on the front side of the material separation plate.

7. The mining waste rock recovery and pretreatment equipment according to claim 6 is characterized by: The eddy current separation device also includes a conveyor belt, a permanent magnet roller and a conveying roller. The conveyor belt is installed on the permanent magnet roller and the conveying roller, and the permanent magnet roller is installed on the front side of the conveying roller.

8. The mining waste rock recovery and pretreatment equipment according to claim 6 is characterized by: The aggregate box is respectively provided with a metal ore box and a waste rock box from front to back.

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