Modular combined small-scale gold mine mobile beneficiation system

Abstract

The application discloses a modular combined small gold mine mobile beneficiation system, and belongs to the jigging machine field. The modular combined small gold mine mobile beneficiation system comprises a mobile carrier and a crushing and stirring unit, a magnetic screening unit and a jigging screening unit which are assembled on the mobile carrier. The mobile carrier is used for driving the crushing and stirring unit, the magnetic screening unit and the jigging screening unit to move and move them to a specified position. The crushing and stirring unit is used for crushing and stirring treatment of ores to form ore particles. The magnetic screening unit is used for screening of ores to separate first raw material particles and second raw material particles. The jigging screening unit comprises a machine shell, and a jigging unit, a conveying section and a discharging unit are sequentially arranged on the machine shell from front to back. The jigging screening unit can realize relatively accurate separation of gold particles and other ore particles.

Description

Technical Field

[0001] This invention relates to the field of jigs, and more specifically, to a modular, combined, small-scale mobile gold ore beneficiation system. Background Technology

[0002] Gold ore is a type of mineral that is usually mixed with other minerals. During the mining process, various minerals are usually mined together, and after mining is completed, the gold and other substances need to be separated.

[0003] For example, Chinese patent CN209465166U discloses an ore jig with good screening effect, which can screen minerals of different materials to form two mineral layers, and then separate the two minerals through two discharge ports.

[0004] However, when separating gold ore, the height of the separation between the two mineral layers is fixed because the jigging machine is affected by the ore. Different ores have different mineral contents, which causes the height of the two mineral layers to change continuously. After separating minerals at a fixed height, errors are likely to occur. Since gold ore is a precious metal, the loss caused by the error during separation will be magnified proportionally to its weight. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this invention is to provide a modular and combined small mobile gold ore beneficiation system, which can achieve relatively accurate separation of gold ore particles and other mineral particles.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A modular, combined small-scale mobile gold ore beneficiation system includes a mobile carrier and a crushing and mixing unit, a magnetic screening unit, and a jigging screening unit mounted on the mobile carrier.

[0010] The mobile carrier is used to move the crushing and mixing unit, the magnetic screening unit and the jigging screening unit to a designated position;

[0011] The crushing and mixing unit is used to crush and mix the ore to form ore particles;

[0012] The magnetic screening unit is used to sort the ore and separate the first raw material particles and the second raw material particles;

[0013] The jigging screening unit includes a housing, on which a jigging unit, a conveying section and a discharge unit are arranged in sequence from front to back. Pressure measuring and detection units are fixedly connected to both sides of the housing, located on the conveying section near the discharge unit.

[0014] The jigging unit is used to separate the first raw material particles and the second raw material particles, so that the first raw material particles and the second raw material particles form a first particle layer and a second particle layer.

[0015] The jigging unit includes a feed hopper, a water inlet unit, a membrane, and a pneumatic pressure booster. The feed hopper is fixedly connected to the front end inside the housing 500. The membrane is fixedly connected to the inside of the housing. The front end of the membrane is fixedly connected to the inner wall of the front end of the housing and located at the lower part of the feed hopper. The rear end of the membrane is located at the upper end of the conveying section. The pneumatic pressure booster is installed inside the housing and located at the lower part of the membrane. The water inlet unit is installed inside the housing at the front end and located at the upper part of the membrane.

[0016] A water flow buffer is provided inside the housing and below the water inlet unit. The water flow buffer includes two vertical guide rails fixedly connected to the inner walls of both sides of the housing and arranged opposite each other. A vertical slide block is slidably connected inside each of the two vertical guide rails. A rotating rod is rotatably connected inside each of the two vertical slide blocks. A buffer plate is fixedly connected between the two rotating rods. A buoyancy airbag is fixedly connected to the lower side of the buffer plate.

[0017] The pressure measurement and detection unit is used to detect the boundary height between the first particle layer and the second particle layer located at the end of the conveying section after separation by the jigging unit, forming a particle layer boundary line;

[0018] The discharge unit includes a distribution pipe fixedly connected to the rear end of the housing. The rear end of the distribution pipe is fixedly connected to a first discharge pipe and a second discharge pipe. The interior of the distribution pipe is equipped with a partition plate connected to the boundary line between the first discharge pipe and the second discharge pipe. The end of the partition plate away from the boundary line between the first discharge pipe and the second discharge pipe is located at the front end inside the distribution pipe. The distribution pipe is provided with an adjustment component that drives the front end of the partition plate to move to the height of the particle layer boundary line.

[0019] Furthermore, the dividing plate includes a dividing plate fixedly connected to the rear end of the dividing pipe and connected to the dividing line between the first discharge pipe and the second discharge pipe, and the front end of the dividing plate is connected to a movable plate through a flexible connecting piece.

[0020] Furthermore, the adjusting component includes a second motor fixedly connected to the upper end of the dispensing pipe and electrically connected to the pressure testing unit. The output end of the second motor is fixedly connected to a vertically arranged screw, and the screw is threadedly connected to the moving plate.

[0021] Furthermore, the pressure testing unit includes a pressure gauge fixedly connected to the housing and located on both sides of the conveying section near the discharge unit. The pressure gauge is equipped with a plurality of vertically arrayed pressure measuring heads.

[0022] Furthermore, the conveying section includes a first moving belt, a first support plate, a first motor, and two first rotating shafts. The two first rotating shafts are rotatably connected to the rear end inside the housing. The first moving belt is mounted on the outside of the two first rotating shafts. The first motor is fixedly connected to the outside of the housing, and the output end of the first motor is connected to one of the first rotating shafts. The first support plate is fixedly connected to the inside of the housing, and the upper side of the first support plate and the inner wall of the upper side of the first moving belt are in clearance fit.

[0023] Furthermore, a pressurizing unit is installed on the housing and above the first moving belt. The pressurizing unit includes a fixed plate fixedly connected to the housing and above the conveying section. A vertical moving structure is fixedly connected to the fixed plate, and a pressurizing conveyor belt is mounted on the vertical moving structure.

[0024] Furthermore, the pressurized conveyor belt includes a top support fixedly connected to the vertical moving structure. Two second rotating shafts are rotatably connected to the lower side of the top support. A second moving belt is mounted on the outer side of the two second rotating shafts. A third motor is fixedly connected to the upper side of the top support. The third motor and one of the second rotating shafts are connected via a belt drive assembly. A second support plate is fixedly connected inside the housing and inside the second moving belt. The lower side of the second support plate and the inner wall of the lower side of the second support plate are in clearance fit.

[0025] Furthermore, the mobile vehicle includes three mobile bodies, and the crushing and mixing unit, magnetic screening unit and jigging screening unit are respectively mounted on the three mobile bodies, with adjacent mobile bodies connected by universal joints.

[0026] 3. Beneficial Effects

[0027] Compared with the prior art, the advantages of this invention are:

[0028] This solution can crush and separate ore by setting up a crushing and mixing unit, a magnetic screening unit, and a jigging screening unit, separating gold materials from other materials in the ore. The pressure detection unit detects the boundary between different materials, and then the separator plate is automatically adjusted to the corresponding height, so as to accurately separate gold ore particles from other ore particles. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a cross-sectional structural diagram of the jigging screening unit of the present invention;

[0031] Figure 3 This is a cross-sectional side view of the jigging screening unit of the present invention;

[0032] Figure 4 For the present invention Figure 3 A partial structural diagram;

[0033] Figure 5 This is a cross-sectional structural diagram of the discharge unit of the present invention;

[0034] Figure 6 This is a schematic diagram of the pressurization unit of the present invention;

[0035] Figure 7 This is a cross-sectional structural diagram of the pressurization unit of the present invention;

[0036] Figure 8 This is a schematic diagram of the pressure measurement and detection unit of the present invention;

[0037] Figure 9 This is a schematic diagram of the conveying section of the present invention;

[0038] Figure 10 This is a schematic diagram of the structure of the mobile vehicle of the present invention;

[0039] Figure 11 For the present invention Figure 3 A magnified view of a portion of point A in the middle.

[0040] Explanation of the labels in the diagram:

[0041] 100. Mobile vehicle; 101. Mobile vehicle body; 102. Universal connector; 200. Crushing and mixing unit; 300. Magnetic screening unit; 400. Jigging screening unit; 500. Machine casing; 600. Jigging unit; 601. Feed hopper; 602. Water inlet unit; 603. Membrane; 604. Air pressure booster; 605. Water flow buffer; 606. Vertical guide rail; 607. Vertical slide; 608. Rotating rod; 609. Buffer plate; 610. Buoyancy airbag; 700. Conveying section; 701. First rotating shaft; 702. First moving belt; 703. First support plate; 704. First motor; 800, discharge unit; 801, distribution pipe; 802, first discharge pipe; 803, second discharge pipe; 804, distribution plate; 805, flexible connecting piece; 806, moving plate; 807, second motor; 808, screw; 900, pressurizing unit; 901, fixing plate; 902, top bracket; 903, guide vertical rod; 904, electric push rod; 905, second rotating shaft; 906, second moving belt; 907, third motor; 908, belt drive assembly; 909, second support plate; 1100, pressure testing unit; 1101, pressure gauge; 1102, pressure measuring head. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0043] Example 1:

[0044] Please see Figure 1-11 A modular combined small mobile gold mine beneficiation system includes a mobile carrier 100 and a crushing and stirring unit 200, a magnetic screening unit 300 and a jigging screening unit 400 assembled on the mobile carrier 100.

[0045] The mobile carrier 100 is used to move the crushing and mixing unit 200, the magnetic screening unit 300 and the jigging screening unit 400 to a designated position.

[0046] The crushing and mixing unit 200 is used to crush and mix the ore to form ore particles.

[0047] The magnetic screening unit 300 is used to sort the ore and separate the first raw material particles and the second raw material particles.

[0048] Please see here. Figure 1-5The jigging screening unit 400 includes a housing 500. The housing 500 is arranged in a front-to-back order with a jigging unit 600, a conveying section 700 and a discharge unit 800. Pressure measuring and detection units 1100 are fixedly connected to both sides of the housing 500, located at the end of the conveying section 700 near the discharge unit 800.

[0049] The jigging unit 600 is used to separate the first raw material particles and the second raw material particles, so that the first raw material particles and the second raw material particles form a first particle layer and a second particle layer, and the first particles with lower density are located on the second particles with higher density.

[0050] The pressure testing unit 1100 is used to detect the boundary height between the first and second particle layers located at the end of the conveying section 700 after separation by the jigging unit 600, forming a particle layer boundary line.

[0051] The discharge unit 800 includes a distribution pipe 801 fixedly connected to the rear end of the housing 500. The rear end of the distribution pipe 801 is fixedly connected to a first discharge pipe 802 and a second discharge pipe 803. The interior of the distribution pipe 801 is equipped with a partition plate connected to the boundary line between the first discharge pipe 802 and the second discharge pipe 803. One end of the partition plate away from the boundary line between the first discharge pipe 802 and the second discharge pipe 803 is located at the front end inside the distribution pipe 801. The distribution pipe 801 is provided with an adjusting component that drives the front end of the partition plate to move to the height of the particle layer boundary line.

[0052] At this time, when the jigging unit 600 separates the first raw material particles and the second raw material particles to form a first particle layer and a second particle layer, the pressure detection unit 1100 detects the height of the first particle layer and the second particle layer at the end of the conveying section 700 after separation by the jigging unit 600, forming a particle layer boundary line. Then, the adjusting component drives the front end of the partition plate to move to the height of the particle layer boundary line, so that the first raw material particles and the second raw material particles can be discharged relatively accurately through the first discharge pipe 802 and the second discharge pipe 803 respectively.

[0053] Please see Figure 3-5 As shown, the partition plate includes a partition plate 804 fixedly connected to the rear end of the partition pipe 801 and connected to the dividing line of the first discharge pipe 802 and the second discharge pipe 803. The front end of the partition plate 804 is connected to a movable plate 806 through a flexible connecting piece 805. At this time, through the flexible connection of the flexible connecting piece 805, the movable plate 806 can be moved freely to the corresponding height. Compared with the direct connection to the pivot of the partition plate 802 and the dividing line of the second discharge pipe 803, the gap between the partition plate and the dividing line of the first discharge pipe 802 and the second discharge pipe 803 can be reduced.

[0054] The adjusting component includes a second motor 807 fixedly connected to the upper end of the distribution pipe 801 and electrically connected to the pressure testing unit 1100. The output end of the second motor 807 is fixedly connected to a vertically arranged screw 808. The screw 808 and the moving plate 806 are threadedly connected. When the second motor 807 is started, it can drive the screw 808 to rotate. When the screw 808 rotates, it will drive the moving plate 806 to move vertically, thereby moving the height of the moving plate 806 to the height of the particle layer boundary line.

[0055] Please see Figure 3 and Figure 8 As shown, the pressure testing unit 1100 includes a pressure measuring instrument 1101 fixedly connected to the housing 500 and located on both sides of the conveying section 700 near the discharge unit 800. The pressure measuring instrument 1101 is provided with a plurality of vertically arrayed pressure measuring heads 1102.

[0056] At this time, the side pressure of the particle layer at different heights is detected by multiple pressure measuring heads 1102. The side pressure applied to the pressure measuring head 1102 by particles of different materials is different. The boundary height of the particle layer is measured by the pressure difference measured by the pressure measuring head 1102.

[0057] Please see Figure 1-3 As shown, the jigging unit 600 includes a feed hopper 601, a water inlet unit 602, a membrane 603, and a pneumatic pressure booster 604. The feed hopper 601 is fixedly connected to the front end inside the housing 500. The membrane 603 is fixedly connected to the inside of the housing 500, with its front end fixedly connected to the inner wall of the front end of the housing 500 and located below the feed hopper 601. The rear end of the membrane 603 is located at the upper end of the conveying section 700. The pneumatic pressure booster 604 is installed inside the housing 500 and located below the membrane 603. The water inlet unit 602 is installed inside the front end of the housing 500 and located above the membrane 603. At this time, after feeding through the feed hopper 601, water is introduced through the water inlet unit 602, allowing the water flow to move the granules on the membrane 603. Then, the pneumatic pressure booster 604 applies an upward vibration force to the upper side of the membrane 603, causing the first raw material granules and the second raw material granules to form a first granule layer and a second granule layer.

[0058] like Figure 3 and Figure 11In order to reduce the water pressure of the water flow output from the water inlet unit 602 from damaging the first and second particle layers, a water flow buffer 605 is provided inside the housing 500 and below the water inlet unit 602. The water flow buffer 605 includes two vertical guide rails 606 fixedly connected to the inner walls of both sides of the housing 500 and arranged opposite each other. Vertical slide blocks 607 are vertically slidably connected inside the two vertical guide rails 606. Rotating rods 608 are rotatably connected inside the two vertical slide blocks 607. A buffer plate 609 is fixedly connected between the two rotating rods 608. A buoyancy airbag 610 is fixedly connected to the lower side of the buffer plate 609.

[0059] At this time, when water is input into the water inlet unit 602, it will first fall onto the upper side of the buffer plate 609, and then fall into the water inside the casing 500 after being buffered by the buffer plate 609. During this process, under the action of buoyancy, the buoyancy airbag 610 will drive the buffer plate 609 to float on the water surface, reducing the drop between the buffer plate 609 and the water surface, and keeping the buffer plate 609 always on the upper side of the particle layer, reducing the contact between the particle layer and the buffer plate 609. At the same time, when the water surface is undulating, it will drive the buffer plate 609 to rotate around the rotating rod 608 as the axis, so that the slope of the buffer plate 609 can adapt to the undulation of the water surface.

[0060] In summary, this embodiment, by setting up a crushing and stirring unit 200, a magnetic screening unit 300, and a jigging screening unit 400, can achieve the crushing and sorting of ore, separating gold materials from other materials in the ore. Furthermore, the pressure detection unit 1100 detects the boundary between different materials, and then the separator plate is automatically adjusted to the corresponding height, which can accurately separate gold ore particles from other ore particles.

[0061] Example 2:

[0062] Please see Figure 1-3 and Figure 9 The difference between this embodiment and Embodiment 1 is that the conveying section 700 includes a first moving belt 702, a first support plate 703, a first motor 704, and two first rotating shafts 701. The two first rotating shafts 701 are rotatably connected to the rear end inside the housing 500. The first moving belt 702 is mounted on the outside of the two first rotating shafts 701. The first motor 704 is fixedly connected to the outside of the housing 500, and the output end of the first motor 704 is connected to one of the first rotating shafts 701. At this time, by starting the first rotating shaft 701, the first moving belt 702 can be driven to move outside the two first rotating shafts 701, so that the first moving belt 702 drives the particle layer on its upper side to move, thereby reducing the pressure movement generated when the particle layer is pushed to move.

[0063] The first support plate 703 is fixedly connected inside the housing 500, and the upper side of the first support plate 703 and the inner wall of the upper side of the first moving belt 702 are fitted with a clearance. At this time, the upper side of the first moving belt 702 is supported by the first support plate 703, which can reduce the longitudinal displacement of the particle layer under gravity.

[0064] Example 3:

[0065] Please see Figure 1-3 and Figure 7-8 As shown, the only difference between this embodiment and embodiment 2 is that a pressurizing unit 900 is installed on the housing 500 and on the upper side of the first moving belt 702. The pressurizing unit 900 includes a fixed plate 901 fixedly connected to the housing 500 and located on the upper side of the conveying section 700. A vertical moving structure is fixedly connected to the fixed plate 901, and a pressurizing conveyor belt is assembled on the vertical moving structure. At this time, by activating the vertical moving structure, the pressurizing conveyor belt is driven to move, so that the pressurizing conveyor belt is pressed down onto the particle layer to pressurize the particle layer.

[0066] Specifically, the pressurized conveyor belt includes a top support 902 fixedly connected to the vertical moving structure. Two second rotating shafts 905 are rotatably connected to the lower side of the top support 902. A second moving belt 906 is mounted on the outer side of the two second rotating shafts 905. A third motor 907 is fixedly connected to the upper side of the top support 902. The third motor 907 and one of the second rotating shafts 905 are connected through a belt drive assembly 908. At this time, by starting the third motor 907, the second rotating shaft 905 can be driven to rotate through the belt drive assembly 908. When the second rotating shaft 905 rotates, it will drive the second moving belt 906 to rotate together, so that the second moving belt 906 moves together with the first moving belt 702, thereby reducing the pressure displacement of the top support 902 on the particle layer.

[0067] A second support plate 909 is fixedly connected inside the housing 500 and inside the second moving belt 906. The lower side of the second support plate 909 and the inner wall of the lower side of the second support plate 909 are fitted with a gap, and the second moving belt 906 is supported by the second support plate 909.

[0068] Please see Figure 6-7 The vertical moving structure includes an electric push rod 904 fixedly connected to the fixed plate 901. The output end of the electric push rod 904 is fixedly connected to the top support 902. The top support 902 is also fixedly connected to a guide rod 903 that is slidably connected to the fixed plate 901. At this time, the top support 902 can be moved by starting the electric push rod 904 to adjust the height of the pressurized conveyor belt.

[0069] Example 4:

[0070] Please see Figure 1 and Figure 10 As shown, the mobile vehicle 100 includes three mobile bodies 101. The crushing and mixing unit 200, the magnetic screening unit 300, and the jigging screening unit 400 are respectively mounted on the three mobile bodies 101. Adjacent mobile bodies 101 are connected by universal joints 102. At this time, the universal joints 102 adapt to the displacement difference between the two adjacent mobile bodies 101, thus adapting to the terrain differences of the mine.

[0071] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A modular, combined, small-scale mobile gold ore beneficiation system, comprising a mobile carrier (100) and a crushing and stirring unit (200), a magnetic screening unit (300), and a jigging screening unit (400) mounted on the mobile carrier (100), characterized in that: The mobile carrier (100) is used to drive the crushing and stirring unit (200), the magnetic screening unit (300) and the jigging screening unit (400) to move to a designated position; The crushing and mixing unit (200) is used to crush and mix the ore to form ore particles; The magnetic screening unit (300) is used to sort the ore and separate the first raw material particles and the second raw material particles; The jigging screening unit (400) includes a housing (500), on which a jigging unit (600), a conveying section (700) and a discharge unit (800) are arranged in sequence from front to back. Pressure measuring and detection units (1100) are fixedly connected to both sides of the housing (500) near the end of the conveying section (700) close to the discharge unit (800). The jigging unit (600) is used to separate the first raw material particles and the second raw material particles, so that the first raw material particles and the second raw material particles form a first particle layer and a second particle layer. The jigging unit (600) includes a feed hopper (601), a water inlet unit (602), a membrane (603), and a pneumatic booster (604). The feed hopper (601) is fixedly connected to the front end inside the housing 500. The membrane (603) is fixedly connected to the inside of the housing (500). The front end of the membrane (603) is fixedly connected to the inner wall of the front end of the housing (500) and located at the lower part of the feed hopper (601). The rear end of the membrane (603) is located at the upper end of the conveying section (700). The pneumatic booster (604) is installed inside the housing (500) and located at the lower part of the membrane (603). The water inlet unit (602) is installed inside the front end of the housing (500) and located at the upper part of the membrane (603). A water flow buffer (605) is provided inside the housing (500) and below the water inlet unit (602). The water flow buffer (605) includes two vertical guide rails (606) fixedly connected to the inner walls of both sides of the housing (500) and arranged opposite to each other. A vertical slide block (607) is vertically slidably connected inside each of the two vertical guide rails (606). A rotating rod (608) is rotatably connected inside each of the two vertical slide blocks (607). A buffer plate (609) is fixedly connected between the two rotating rods (608). A buoyancy airbag (610) is fixedly connected to the lower side of the buffer plate (609). The pressure testing unit (1100) is used to detect the boundary height between the first particle layer and the second particle layer at the end of the conveying section (700) after separation by the jigging unit (600), forming a particle layer boundary line; The discharge unit (800) includes a distribution pipe (801) fixedly connected to the rear end of the housing (500). The rear end of the distribution pipe (801) is fixedly connected to a first discharge pipe (802) and a second discharge pipe (803). The inside of the distribution pipe (801) is equipped with a partition plate connected to the boundary line of the first discharge pipe (802) and the second discharge pipe (803). One end of the partition plate away from the boundary line of the first discharge pipe (802) and the second discharge pipe (803) is located at the front end inside the distribution pipe (801). The distribution pipe (801) is provided with an adjusting component that drives the front end of the partition plate to move to the height of the particle layer boundary line. The conveying section (700) includes a first moving belt (702), a first support plate (703), a first motor (704), and two first rotating shafts (701). The two first rotating shafts (701) are rotatably connected to the rear end inside the housing (500). The first moving belt (702) is mounted on the outside of the two first rotating shafts (701). The first motor (704) is fixedly connected to the outside of the housing (500), and the output end of the first motor (704) is connected to one of the first rotating shafts (701). The first support plate (703) is fixedly connected inside the housing (500), and the upper side of the first support plate (703) and the inner wall of the upper side of the first moving belt (702) are in clearance fit. A pressurizing unit (900) is installed on the housing (500) and above the first moving belt (702). The pressurizing unit (900) includes a fixed plate (901) fixedly connected to the housing (500) and above the conveying section (700). A vertical moving structure is fixedly connected to the fixed plate (901), and a pressurizing conveyor belt is mounted on the vertical moving structure.

2. The modular combined small-scale mobile gold mine beneficiation system according to claim 1, characterized in that: The partition plate includes a partition plate (804) fixedly connected to the rear end of the partition pipe (801) and the boundary line between the first discharge pipe (802) and the second discharge pipe (803). The front end of the partition plate (804) is connected to a movable plate (806) via a flexible connecting piece (805).

3. The modular combined small-scale mobile gold mine beneficiation system according to claim 2, characterized in that: The adjusting component includes a second motor (807) fixedly connected to the upper end of the feed pipe (801) and electrically connected to the pressure detection unit (1100). The output end of the second motor (807) is fixedly connected to a vertically arranged screw (808), and the screw (808) is threadedly connected to the moving plate (806).

4. The modular combined small-scale mobile gold mine beneficiation system according to claim 1, characterized in that: The pressure testing unit (1100) includes a pressure gauge (1101) fixedly connected to the housing (500) and located on both sides of the conveying section (700) near the discharge unit (800). The pressure gauge (1101) is provided with a plurality of vertically arrayed pressure measuring heads (1102).

5. A modular, combined, small-scale mobile gold mine beneficiation system according to claim 1, characterized in that: The pressurized conveyor belt includes a top support (902) fixedly connected to the vertical moving structure. Two second rotating shafts (905) are rotatably connected to the lower side of the top support (902). A second moving belt (906) is assembled on the outer side of the two second rotating shafts (905). A third motor (907) is fixedly connected to the upper side of the top support (902). The third motor (907) and one of the second rotating shafts (905) are connected by a belt drive group (908). A second support plate (909) is fixedly connected inside the housing (500) and inside the second moving belt (906). The lower side of the second support plate (909) and the inner wall of the lower side of the second support plate (909) are in clearance fit.

6. A modular, combined, small-scale mobile gold mine beneficiation system according to any one of claims 1-5, characterized in that: The mobile vehicle (100) includes three mobile bodies (101), and the crushing and mixing unit (200), magnetic screening unit (300) and jigging screening unit (400) are respectively mounted on the three mobile bodies (101). Adjacent mobile bodies (101) are connected by universal connectors (102).

Images