Multi-stage two-stream separator for mining

Abstract

To provide a multi-stage two-stream separator for mining, which is used in the process of obtaining raw materials from ore required for refining or other industries. The system includes a feed assembly (1), a screening assembly (2), a dust removal assembly (3), and a frame (4). The feed assembly is mounted on the top of the frame, and the screening assembly is mounted inside the frame. The screening assembly includes a stepped, multi-stage screening bed with at least two stages. The device provides a heavy component collection port on the lower side of the screening bed, allowing the heavy components to be continuously or intermittently discharged through the discharge assembly, reducing the amount of heavy components entering the next stage and fully utilizing the screening capacity of the screening bed. The screening assembly can be a continuous discharge assembly, an intermittent discharge assembly, or a gravity discharge assembly. Clean air treated by the dust removal assembly is drawn into the frame via an external air supply pipe, an air intake frame, and a blower for recycling. It is then recirculated by the screening assembly, and the contaminated air flow is sent back into the bag-type dust remover. This prevents the escape of coal powder and provides a rational overall design, pollution-free operation, and high screening efficiency.

Description

[Technical Field]

[0001] The present invention relates to the technical field of air sorting, and in particular to a multi-stage two-stream sorter for mining. [Background technology]

[0002] Ore dressing is a process in which ore is crushed to a certain particle size according to the physical and chemical properties of the different minerals in the ore, and then methods such as re-sorting, flotation, magnetic separation, and electrical sorting are used to separate useful minerals from gangue minerals, to separate various coexisting useful minerals as much as possible from each other, and to remove or reduce harmful impurities, thereby obtaining raw materials needed for smelting or other industries.

[0003] Among these, the re-sorting method utilizes the difference in specific gravity of mineral raw material particles in the medium flow to separate them. Currently, there are two main methods: water sorting and air sorting. Take coal washing as an example. Water sorting has high accuracy, but the selected clean coal absorbs water, reducing the calorific value and waste caused by the clean coal being mixed into the coal mud, which affects subsequent processing or use. Air sorting has lower accuracy than water sorting, but produces a cleaner green color and does not produce wastewater or coal mud, and has been developing rapidly in recent years. In particular, in the coal preparation industry, the accuracy of air sorting is gradually approaching that of water sorting, and it does not produce coal mud or wastewater, and does not waste the clean coal mixed into the coal mud. Because the coal has a low moisture content and high calorific value, air sorting is becoming the trend for coal preparation.

[0004] Take coal sorting as an example. Most wind coal sorting machines currently used have multi-stage beds with a certain inclination angle, and separation of light and heavy components is achieved through circulating vibration and media purging. After raw coal enters a sorting bed with a certain inclination angle, it is separated by media and vibration, with the light components on top and the reconstituted components on the bottom, forming a coal layer of a certain thickness in the sorting bed. The reconstituted components (generally gangue) gradually move upward and are collected beyond the stop plate of the sorting bed. The light components and unseparated reconstituted components on the other side of the sorting bed pass through the stop plate and enter the second stage for further sorting. Coal sorting machines are also used to separate other non-carbon minerals such as iron ore and copper ore, and the principle is completely the same. However, the drawback of this process is that the material on the first stage completely enters the second stage for separation, and the material on the second stage completely enters the third stage for separation, resulting in low separation efficiency. In particular, in coal sorting scenarios where the space requirements for the sorting machine are relatively high, such as downhole sorting coal, the downhole space is often narrow, making it difficult to install a three-stage sorting bed, while the separation effect of a two-stage sorting bed is poor, the throughput is low, and it is difficult to complete the sorting task. Therefore, a multi-stage two-stream sorting machine for mining is provided. Summary of the Invention

[0005] (1) The problem to be solved In view of the shortcomings of the prior art, the present invention provides a multi-stage separator for mining to solve the problems presented in the background art.

[0006] (2) Technical means To achieve the above objectives, the present invention provides the following technical means:

[0007] A multi-stage separator for mining, comprising a feed assembly, a screening assembly, a dedusting assembly, and a frame, A supply assembly is provided at the top end of the frame, and the sorting assembly is provided inside the frame. The sorting assembly includes a stepped multi-stage sorting bed that is provided at an incline, and the multi-stage sorting bed has at least two stages, and the stages are named, from higher to lower, as the first sorting bed, the second sorting bed, ..., and the Nth sorting bed according to the height of the center of gravity. The dust removal assembly is connected to the frame by a pipe provided above the sorting assembly, and the sorting assembly includes a blower, a vibration motor, and a discharge device. The blower blows air through the multi-stage sorting bed. a vibration motor mounted on the frame; the discharge device including a heavy component discharge device and a light component discharge device; a heavy component discharge outlet provided on the higher side of each stage of the multi-stage sorting bed; a stop plate provided between the two sorting beds on the lower side of each stage except the final stage in the multi-stage sorting bed, through which the light components sorted by the current sorting bed are transported to the next sorting bed; a heavy component collection port provided below the stop plate; and a discharge assembly provided below the heavy component collection port.

[0008] Preferably, a heavy component collection port is also provided below the higher side of the multi-stage sorting bed, and a discharge assembly is provided below the heavy component collection port.

[0009] Preferably, the intermittent discharge assembly includes a connecting rod, a first rotating shaft, a cylinder, a first connecting head, a rotating rod, a first tie rod, a second rotating rod, and a first valve plate, wherein a first rotating shaft is rotatably attached to the outside of the connecting rod, a cylinder is fixedly attached to the outside of the first rotating shaft, a first connecting head is fixedly attached to a movable end of the cylinder, a rotating rod is rotatably attached to the inside of the first connecting head, a first tie rod is rotatably attached to a portion of the rotating rod located inside the first connecting head, a second rotating rod is fixedly attached to the end of the first tie rod remote from the first connection head, and a first valve plate is fixedly attached to the outside of the second rotating rod, and the first valve plate prevents the heavy components from directly entering the heavy component tank at the heavy component discharge port.

[0010] Preferably, the gravity discharge assembly includes a second tie rod, a second rotating shaft, a second connecting head, a weight, a third rotating rod, and a second valve plate, wherein the third rotating rod and the second rotating shaft are fixedly attached to both ends of the second tie rod, respectively, the second connecting head is rotatably attached to the outer side of the second rotating shaft, the weight is fixedly attached to the lower part of the second connecting head, and the second valve plate is fixedly attached to the outer side of the third rotating rod, and the second valve plate prevents the heavy components from directly dropping into the heavy component tank at the heavy component discharge port.

[0011] Preferably, the apparatus further includes a dust removal assembly, and a connecting pipe and an external air supply pipe are provided between the frame and the dust removal assembly. An air intake frame is fixedly attached to the end of the external air supply pipe remote from the dust removal assembly, and the air intake frame is fixedly connected to the frame. A light component discharge assembly is provided below the sorting assembly inside the frame. A heavy component discharge box and an air supply box are further provided at equal intervals inside the frame. An internal air supply pipe is provided below the air supply box. An air blower is provided at the end of the internal air supply pipe remote from the air supply box, and the air blower is located inside the air intake frame. A vibration motor is fixedly attached to the top end of the frame. A light component discharge port is provided below the final-stage sorting bed inside the frame. A secondary heavy component discharge pipe is provided below the heavy component discharge box so as to communicate with each other. A main heavy component discharge pipe is provided below the secondary heavy component discharge pipe. Air intake assemblies are provided above and below both ends of the air intake frame.

[0012] According to the above technical measures, the heavy components discharged from the sorting assembly can be discharged continuously or intermittently by the discharge assembly, and users can choose between a continuous discharge assembly, an intermittent discharge assembly or a gravity discharge assembly according to the actual situation, thereby greatly improving the discharge efficiency of the heavy components.

[0013] Preferably, the intake assembly includes an intake box, a filter plate is detachably attached to the bottom of the intake box, an outer insertion groove is provided on the inside of the intake box, a filter element frame is inserted into the outer insertion groove on the inside of the intake box, an inner insertion groove is provided on the inside of the filter element frame, an air filter element is inserted into the inner insertion groove, and a lock bolt is provided between the filter element frame and the intake box.

[0014] Preferably, the intake assemblies are distributed diagonally relative to the center line of the intake frame, four locking bolts are provided, the four locking bolts are distributed symmetrically relative to the horizontal line of the filter element frame, and the locking bolts extend through the filter element frame to the inside of the intake box.

[0015] According to the above technical measures, the design of the air intake assembly and the installation of the air filter element inside the air intake assembly can filter the inhaled air and prevent external dust gas from entering the frame. At the same time, the filter element frame can be quickly inserted and attached to the air intake box, and the air filter element can also be quickly inserted and attached to the filter element frame, which simplifies operation and makes assembly convenient.

[0016] Preferably, the dust removal assembly is a bag-type dust remover, the frame, the outer air supply pipe, the intake frame and the dust removal assembly are interconnected, the number of the fans, the air supply boxes and the inner air supply pipes is the same as the number of the sorting beds, and the air supply boxes and the inner air supply pipes are interconnected.

[0017] According to the above technical means, clean air treated by the dust removal assembly passes through the external air supply pipe, the intake frame, and the blower, is drawn into the frame, and is circulated for reuse. After passing through the screening assembly, the air is circulated again, and the contaminated gas is introduced into the bag-type dust remover, thereby preventing the escape of coal powder, etc.

[0018] Compared with the prior art, the present invention provides a multi-stage two-stream separator for mining, which has the following beneficial effects: 1. In this mining multi-stage two-stream separator, a heavy component collection port is provided below the lower stop plate of each stage of the multi-stage separator except the final stage, and the heavy components in the bottom layer on the separator are continuously or intermittently removed using a discharge assembly, thereby reducing the content of heavy components entering the next separator, fully utilizing the separator capacity of the current separator and eliminating the need to remix the separated heavy components and send them to the next separator. This significantly improves the separator capacity of the single separator, increasing the separator's sorting capacity and achieving the desired separator effect with fewer separators. 2. This mining multi-stage two-stream separator is equipped with a continuous discharge assembly, an intermittent discharge assembly, and a gravity discharge assembly, and users can choose to use the continuous discharge assembly, intermittent discharge assembly, or gravity discharge assembly according to their actual needs. When using the continuous discharge assembly, the output shaft of the drive motor rotates the primary pulley, and the primary pulley operates the discharger via the drive transmission belt, secondary pulley, and rotating rod, allowing the discharger to continuously discharge heavy components, thereby improving the discharge efficiency of heavy components. By using the intermittent discharge assembly or gravity discharge assembly, intermittent or automatic discharge can be achieved, with a rational design and high sorting efficiency. 3. This mining multi-stage two-flow separator is further equipped with an external air supply pipe, an air intake frame, a dust removal assembly, a connecting pipe and a blower. The clean air treated by the dust removal assembly passes through the external air supply pipe, the air intake frame and the blower, is drawn into the frame and circulated, and after passing through the sorting assembly, it is circulated again and the polluted gas is introduced into the bag-type dust remover, preventing the escape of coal powder. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a schematic diagram of the three-dimensional structure of the present invention. [Figure 2] 2 is a schematic diagram of the three-dimensional structure of the present invention. [Figure 3] 1 is a schematic diagram of a half-section structure of the present invention. [Figure 4] 2 is a schematic diagram of the three-dimensional structure of the frame of the present invention. [Figure 5] 1 is a schematic diagram of the mounting structure of the air supply box of the present invention; [Figure 6] 1 is a schematic diagram of a partially enlarged view of the structure of an intake assembly of the present invention; [Figure 7] 1 is a schematic diagram of the three-dimensional structure of an intake assembly according to the present invention; [Figure 8] 2 is a schematic diagram showing the three-dimensional structure of the intake assembly of the present invention; [Figure 9] 2 is a schematic diagram of the mounting structure of the continuous discharge assembly of the present invention; [Figure 10] 1 is a schematic diagram of a half-section structure of a continuous discharge assembly according to the present invention; [Figure 11] 2 is a schematic diagram of a second half-section of the continuous discharge assembly of the present invention; [Figure 12] 1 is a schematic diagram of the three-dimensional structure of an intermittent discharge assembly according to the present invention; [Figure 13] 2 is a second schematic diagram of the three-dimensional structure of the intermittent discharge assembly of the present invention; [Figure 14] 1 is a schematic diagram of a half-section structure of an intermittent discharge assembly of the present invention; [Figure 15] 1 is a schematic diagram of the mounting structure of the gravity discharge assembly of the present invention; [Figure 16] 1 is a schematic cross-sectional view of a gravity discharge assembly according to the present invention; [Figure 17] FIG. 16 is a schematic diagram of an enlarged structure of the present invention at point A in FIG. 15.

[0020] Explanation of symbols 1, feeding assembly; 2, sorting assembly; 201, multi-stage sorting bed; 2011, first sorting bed; 2012, second sorting bed; 2013, Nth sorting bed; 3, dust removal assembly; 4, frame; 5, connecting pipe; 6, blower; 7, vibration motor; 8, discharge device; 9, heavy component discharge outlet; 10, stop plate; 11, heavy component collection outlet; 12, discharge assembly; 13, continuous discharge assembly; 1301, drive motor; 1302, primary pulley; 1303, drive transmission belt; 1304, secondary pulley; 1305, first rotating rod; 1306, discharger; 14, intermittent discharge assembly; 1402, connecting rod; 1403, first rotating shaft; 1404, cylinder; 1405, first connecting head; 1406, rotating rod; 140 7, first tie rod; 1408, second rotating rod; 1409, first valve plate; 15, gravity discharge assembly; 1502, second tie rod; 1503, second rotating shaft; 1504, second connecting head; 1505, weight; 1506, third rotating rod; 1507, second valve plate; 16, outer air supply pipe; 17, intake frame; 18, light component discharge assembly; 19, heavy component discharge box ;20, air supply box; 21, internal air supply pipe; 22, blower; 23, light component discharge port; 24, secondary heavy component discharge pipe; 25, main heavy component discharge pipe; 26, intake assembly; 2601, intake box; 2602, filter plate; 2603, external mounting groove; 2604, filter element frame; 2605, internal mounting groove; 2606, air filter element; 2607, lock bolt. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative work fall within the scope of protection of the present invention.

[0022] Example 1 As shown in Figures 1-17, the multi-stage separator for mining provided by the present invention includes a feed assembly 1, a sorting assembly 2, a dust removal assembly 3, and a frame 4. The feed assembly 1 is provided at the top end of the frame 4, and the sorting assembly 2 is provided inside the frame 4. The sorting assembly 2 includes a stepped multi-stage sorting floor 201 that is provided at an incline, and the multi-stage sorting floor 201 has at least two stages, which are the first sorting floor 2011, the second sorting floor 2012, and the Nth sorting floor 2013 from high to low according to the height of the center of gravity. The dust removal assembly 3 is connected to the frame 4 by a pipe provided above the sorting assembly 2. The sorting assembly 2 further includes a blower 6, a vibration motor 7, and a discharge device 8. The blower 6 is provided at the bottom of the multi-stage sorting bed 201, the vibration motor 7 is provided on the frame 4, the discharge device 8 includes a heavy component discharge device and a light component discharge device, a heavy component discharge outlet 9 is provided on the higher side of each stage of the multi-stage sorting bed 201, and on the lower side of each stage of the multi-stage sorting bed 201 except for the final stage, a stop plate 10 is provided between the two sorting beds to transport the light components sorted by the sorting bed of this stage to the sorting bed of the next stage, a heavy component collection port 11 is provided below the stop plate 10, and a discharge assembly 12 is provided below the heavy component collection port 11.

[0023] Specifically, a heavy component collection port 11 is also provided below the higher side of the multi-stage sorting bed, and a discharge assembly 12 is provided below the heavy component collection port 11.

[0024] Example 2 Example 2 is the same as Example 1 except that only two-stage sorting floors, a first sorting floor 2011 and a second sorting floor 2012, are used.

[0025] Example 3 As shown in Figure 2-17, the above embodiment has been improved to meet the needs of various situations.

[0026] Specifically, the discharge assembly 12 is a continuous discharge assembly 13 , an intermittent discharge assembly 14 , or a gravity discharge assembly 15 .

[0027] Specifically, the continuous discharge assembly 13 includes a drive motor 1301, a primary pulley 1302, a drive transmission belt 1303, a secondary pulley 1304, a first rotating rod 1305, and a discharger 1306. The primary pulley 1302 is rotatably attached to the output shaft of the drive motor 1301. The drive transmission belt 1303 is attached to the outside of the primary pulley 1302. The secondary pulley 1304 is attached to the inside of the end of the drive transmission belt 1303 far from the primary pulley 1302, and the first rotating rod 1305 is fixedly attached to the inside of the secondary pulley 1304. The discharger 1306 is gear-shaped and prevents the heavy components from directly falling into the heavy components tank at the heavy component discharge port 9.

[0028] According to the above configuration, in the process of using the continuous discharge assembly 13, the output shaft of the drive motor 1301 rotates the primary pulley 1302, and the primary pulley 1302 rotates the discharger 1306 via the drive transmission belt 1303, the secondary pulley 1304, and the first rotating rod 1305, so that the discharger 1306 can continuously discharge the heavy components.

[0029] Specifically, the intermittent discharge assembly 14 includes a connecting rod 1402 , a first rotating shaft 1403 , a cylinder 1404 , a first connecting head 1405 , a rotating rod 1406 , a first tie rod 1407 , a second rotating rod 1408 and a first valve plate 1409 . A first rotating shaft 1403 is rotatably attached to the outside of the connecting rod 1402, a cylinder 1404 is fixedly attached to the outside of the first rotating shaft 1403, a first connecting head 1405 is fixedly attached to the movable end of the cylinder 1404, a rotating rod 1406 is rotatably attached to the inside of the first connecting head 1405, a first tie rod 1407 is rotatably attached to a portion of the rotating rod 1406 located inside the first connecting head 1405, a second rotating rod 1408 is fixedly attached to the end of the first tie rod 1407 remote from the first connecting head 1405, and a first valve plate 1409 is fixedly attached to the outside of the second rotating rod 1408. The first valve plate 1409 prevents heavy components from the heavy component discharge port 9 from directly falling into the heavy component tank.

[0030] According to the above configuration, when the intermittent discharge assembly 14 is used, the cylinder 1404 is used periodically, and the cylinder 1404 rotates the second rotating rod 1408 via the first connecting head 1405, the rotating rod 1406, and the first tie rod 1407, thereby opening the first valve plate 1409.

[0031] Specifically, the gravity discharge assembly 15 includes a second tie rod 1502, a second rotating shaft 1503, a second connecting head 1504, a weight 1505, a third rotating rod 1506, and a second valve plate 1507. The third rotating rod 1506 and the second rotating shaft 1503 are fixedly attached to both ends of the second tie rod 1502, respectively, the second connecting head 1504 is rotatably attached to the outer side of the second rotating shaft 1503, the weight 1505 is fixedly attached to the lower part of the second connecting head 1504, and the second valve plate 1507 is fixedly attached to the outer side of the third rotating rod 1506, and the second valve plate 1507 prevents the heavy components from directly dropping into the heavy components tank at the heavy component discharge port 9.

[0032] According to the above configuration, when the gravity discharge assembly 15 is used, if the weight of the heavy components on the top of the second valve plate 1507 becomes greater than the weight of the weight 1505, the second valve plate 1507 will automatically open; if the weight of the heavy components on the top of the second valve plate 1507 is relatively small, the weight 1505 will rotate the third rotating rod 1506 via the second connecting head 1504, the second rotating shaft 1503, and the second tie rod 1502, and the third rotating rod 1506 will close the second valve plate 1507.

[0033] Due to the designs of the continuous discharge assembly 13, the intermittent discharge assembly 14, and the gravity discharge assembly 15, the continuous discharge assembly 13 can continuously discharge the heavy components discharged by the sorting assembly 2. The intermittent discharge assembly 14 and the gravity discharge assembly 15 can realize automatic discharge. Users can select to use the continuous discharge assembly 13, the intermittent discharge assembly 14, or the gravity discharge assembly 15 according to actual conditions, thereby improving discharge efficiency.

[0034] Example 4 As shown in Figure 2-17, the above embodiment has been improved to facilitate the use of the air after it has been treated by the dust removal assembly.

[0035] Specifically, the dust removal assembly 3 is included, and a connecting pipe 5 and an external air supply pipe 16 are provided between the frame 4 and the dust removal assembly 3. An air intake frame 17 is fixedly attached to the end of the external air supply pipe 16 remote from the dust removal assembly 3. The air intake frame 17 is fixedly connected to the frame 4. A continuous discharge assembly 13, an intermittent discharge assembly 14, or a gravity discharge assembly 15 is provided outside the sorting assembly 2. A light component discharge assembly 18 is provided below the sorting assembly 2 within the frame 4. A heavy component discharge box 19 and an air supply box 20 are further provided within the frame 4, arranged at equal intervals. An internal air supply pipe 21 is provided below the air supply box 20. A blower 22 is provided at the end of the internal air supply pipe 21 remote from the air supply box 20. The blower 22 is located within the air intake frame 17. A vibration motor 7 is fixedly attached to the top end of the exterior of the frame 4. A light component discharge port 23 is provided below the third sorting bed 2013 inside the frame 4. A secondary heavy component discharge pipe 24 is attached to the lower part of the heavy component discharge box 19 so that they communicate with each other. A main heavy component discharge pipe 25 is provided below the secondary heavy component discharge pipe 24. Intake assemblies 26 are provided on both the upper and lower ends of the intake frame 17.

[0036] Specifically, the air intake assembly 26 includes an air intake box 2601. A filter plate 2602 is detachably attached to the bottom of the air intake box 2601. An outer insertion groove 2603 is formed on the inside of the air intake box 2601. A filter element frame 2604 is inserted into the outer insertion groove 2603 on the inside of the air intake box 2601. An inner insertion groove 2605 is formed on the inside of the filter element frame 2604. An air filter element 2606 is inserted into the inner insertion groove 2605. A lock bolt 2607 is provided between the filter element frame 2604 and the air intake box 2601.

[0037] Specifically, the air intake assemblies 26 are arranged diagonally relative to the center line of the air intake frame 17. Four locking bolts 2607 are provided. The four locking bolts 2607 are arranged symmetrically relative to the horizontal line of the filter element frame 2604. The locking bolts 2607 pass through the filter element frame 2604 and extend into the air intake box 2601. This configuration allows the design of the air intake assembly 26 to accommodate an air filter element 2606 inside the air intake assembly 26, filtering the intake air and preventing external dust gas from entering the frame 4. The filter element frame 2604 can be quickly inserted and attached to the air intake box 2601, and the air filter element 2606 can also be quickly inserted and attached to the filter element frame 2604, simplifying operation and convenient assembly.

[0038] Specifically, the dust removal assembly 3 is a bag-type dust remover. The frame 4, the outer air supply pipe 16, the air intake frame 17, and the exhaust port of the dust removal assembly 3 are interconnected. The number of blowers 22, air supply boxes 20, and inner air supply pipes 21 are the same, and the air supply boxes 20 and inner air supply pipes 21 are interconnected. With this configuration, gas treated by the dust removal assembly 3 is drawn into the frame 4 by the outer air supply pipe 16, the air intake frame 17, and the blower 22, and new air is drawn in after being treated by the air intake assembly 26. The blower 22 transports the drawn air into the air supply box 20 through the inner air supply pipe 21, introduces the air into the sorting assembly 2, and circulates it again through the sorting assembly 2 and the connecting pipe 5, before being sent into the bag-type dust remover.

[0039] Operating principle: In use, the feed assembly 1 transports raw materials into the frame 4, and the sorting assembly 2 located inside the frame 4 sorts the materials. During sorting, the blower 22 transports the drawn air into the air supply box 20 via the inner air supply pipe 21, blows the air into the sorting assembly 2, and circulates it back into the bag-type dust collector via the sorting assembly 2, connecting pipe 5, outer air supply pipe 16, and intake frame 17. The dust removal assembly 3 filters the dust, and the filtered air returns to the frame 4 via the outer air supply pipe 16 and intake frame 17. During the sorting process, the stop plate 10 on the top of the sorting assembly 2 blocks heavy components, creating stratification on the sorting floor with heavy components at the bottom and light components at the top. Some of the heavy components, along with the light components, climb over the stop plates and enter the next sorting bed for further sorting. Some of the heavy components are directly discharged from the heavy component discharge port 9 located on the high side of the current sorting bed. Other heavy components enter the heavy component collection port 11 and are intermittently or continuously discharged by the discharge assembly 12. This allows the heavy components to be discharged from both the high and low sides of the sorting bed, with the light components finally dropping from the light component discharge port 23 to the top of the light component discharge assembly 18 and the heavy components being discharged from the heavy component discharge box 19. During the discharge process, the heavy components first drop into the heavy component discharge box 19, then are transported into the main heavy component discharge pipe 25 through the secondary heavy component discharge pipe 24, and finally discharged through the main heavy component discharge pipe 25. The user can select to use the continuous discharge assembly 13, intermittent discharge assembly 14, or gravity discharge assembly 15 according to the actual situation, thereby improving discharge efficiency. When the continuous discharge assembly 13 is used, the output shaft of the drive motor 1301 rotates the primary pulley 1302, and the primary pulley 1302 rotates the discharger 1306 via the drive transmission belt 1303, the secondary pulley 1304, and the first rotating rod 1305, so that the discharger 1306 can continuously discharge the heavy components. When the intermittent discharge assembly 14 is used, the cylinder 1404 is used periodically, and the cylinder 1404 rotates the second rotating rod 1408 via the first connecting head 1405, the rotating rod 1406, and the first tie rod 1407, thereby opening the first valve plate 1409.When the gravity discharge assembly 15 is in use, if the weight of the heavy component on the second valve plate 1507 becomes greater than the weight of the weight 1505, the second valve plate 1507 will automatically open; if the weight of the heavy component on the second valve plate 1507 is relatively light, the weight 1505 will rotate the third rotating rod 1506 via the second connecting head 1504, the second rotating shaft 1503, and the second tie rod 1502, and the third rotating rod 1506 will close the second valve plate 1507. This makes the design reasonable and convenient to use.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will 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, and the scope of the present invention is limited by the appended claims and their equivalents.

Claims

1. A multi-stage two-stream separator for mining, comprising a feed assembly (1), a sorting assembly (2), a dust removal assembly (3), and a frame (4), A supply assembly (1) is provided at the top end of the frame (4), and the sorting assembly (2) is provided inside the frame (4). The sorting assembly (2) includes a stepped multi-stage sorting bed (201) that is provided at an angle. The multi-stage sorting bed (201) has at least two stages, which are the first sorting bed (2011), the second sorting bed (2012), ..., and the Nth sorting bed, in order from higher to lower, according to the height of the center of gravity. The dust removal assembly (3) is connected to the frame (4) by a pipe provided above the sorting assembly (201). The sorting assembly (2) includes a blower (6), a vibration motor (7), and an exhaust device (8). The blower (6) is a multi-stage sorting bed. a vibration motor (7) mounted on a frame (4); the discharge device (8) includes a heavy component discharge device and a light component discharge device; a heavy component discharge port (9) is provided on the higher side of each stage of the multi-stage sorting bed (201); at the lower side of each stage except the final stage of the multi-stage sorting bed (201), a stop plate (10) is provided between the two sorting beds, through which the light components separated by the current sorting bed are transported to the next sorting bed; a heavy component collection port (11) is provided below the stop plate (10); and a discharge assembly (12) is provided below the heavy component collection port (11).

2. 2. The mining multi-stage two-stream separator according to claim 1, wherein a heavy component collection port (11) is also provided below the higher side of the multi-stage separation bed, and a discharge assembly (12) is provided below the heavy component collection port (11).

3. 3. A multi-stage two-stream separator for mining according to claim 1 or 2, characterized in that the discharge assembly (12) is a continuous discharge assembly (13), an intermittent discharge assembly (14) or a gravity discharge assembly (15).

4. The continuous discharge assembly (13) includes a drive motor (1301), a primary pulley (1302), a drive transmission belt (1303), a secondary pulley (1304), a first rotating rod (1305), and a discharger (1306). The primary pulley (1302) is attached to the output shaft of the drive motor (1301) so as to be capable of transmitting power. The drive transmission belt (1303) is provided on the outside of the primary pulley (1302). The primary pulley (1302) of the drive transmission belt (1303) is connected to the primary pulley (1302). 2) to the inside of the end, a secondary pulley (1304) is provided, a first rotating rod (1305) is fixedly attached to the inside of the secondary pulley (1304), and a discharger (1306) is fixedly attached to the outside of the first rotating rod (1305), the discharger (1306) is gear-shaped, and the discharger (1306) prevents heavy components from directly falling into a heavy component tank at the heavy component discharge port.

5. The intermittent discharge assembly (14) includes a connecting rod (1402), a first rotating shaft (1403), a cylinder (1404), a first connecting head (1405), a rotating rod (1406), a first tie rod (1407), a second rotating rod (1408), and a first valve plate (1409). A first rotating shaft (1403) is rotatably attached to the outside of the connecting rod (1402), a cylinder (1404) is fixedly attached to the outside of the first rotating shaft (1403), a first connecting head (1405) is fixedly attached to a movable end of the cylinder (1404), and a first valve plate (1409) is attached to the inside of the first connecting head (1405).

4. A multi-stage two-stream separator for mining according to claim 3, characterized in that a rotating rod (1406) is rotatably attached, a first tie rod (1407) is rotatably attached to a portion of the rotating rod (1406) located inside the first connecting head (1405), a second rotating rod (1408) is fixedly attached to an end of the first tie rod (1407) remote from the first connecting head (1405), and a first valve plate (1409) is fixedly attached to the outside of the second rotating rod (1408), and the first valve plate (1409) prevents heavy components from directly entering a heavy component tank at the heavy component discharge port.

6. 4. The gravity discharge assembly (15) comprises a second tie rod (1502), a second rotating shaft (1503), a second connecting head (1504), a plumb bob (1505), a third rotating rod (1506), and a second valve plate (1507), wherein a third rotating rod (1506) and a second rotating shaft (1503) are fixedly attached to both ends of the second tie rod (1502), a second connecting head (1504) is rotatably attached to the outer side of the second rotating shaft (1503), a plumb bob (1505) is fixedly attached to the lower part of the second connecting head (1504), and a second valve plate (1507) is fixedly attached to the outer side of the third rotating rod (1506), and the second valve plate (1507) prevents heavy components from directly falling into a heavy components tank at the heavy component discharge port.

7. The dust removal assembly (3) includes a connecting pipe (5) and an external air supply pipe (16) provided between the frame (4) and the dust removal assembly (3). An air intake frame (17) is fixedly attached to the end of the external air supply pipe (16) far from the dust removal assembly (3). The air intake frame (17) is fixedly connected to the frame (4). A light component discharge assembly (18) is provided below the sorting assembly (2) inside the frame (4). A heavy component discharge box (19) and an air supply box (20) are further provided inside the frame (4) at equal intervals. An internal air supply pipe (21) is provided at the bottom of the air supply box (20). The internal air supply pipe (21) is connected to the light component discharge assembly (18).

7. The multi-stage two-stream separator for mining according to claim 4, wherein a blower (22) is provided at the end of the heavy component discharge box (19) far from the air supply box (20), a vibration motor (7) is fixedly attached to the top end of the exterior of the frame (4), a light component discharge port (23) is provided below the final stage sorting floor inside the frame (4), a secondary heavy component discharge pipe (24) is provided at the bottom of the heavy component discharge box (19) so as to communicate with each other, a main heavy component discharge pipe (25) is provided below the secondary heavy component discharge pipe (24), and air intake assemblies (26) are provided on both the top and bottom of both ends of the air intake frame (17).

8. 8. The multi-stage two-stream separator for mining according to claim 7, wherein the air intake assembly (26) includes an air intake box (2601), a filter plate (2602) is detachably attached to the lower part of the air intake box (2601), an outer insertion groove (2603) is provided on the inside of the air intake box (2601), a filter element frame (2604) is inserted into the outer insertion groove (2603) on the inside of the air intake box (2601), an inner insertion groove (2605) is provided on the inside of the filter element frame (2604), an air filter element (2606) is inserted into the inner insertion groove (2605), and a lock bolt (2607) is provided between the filter element frame (2604) and the air intake box (2601).

9. The multi-stage two-stream separator for mining according to claim 8, characterized in that the intake assemblies (26) are distributed diagonally with respect to the center line of the intake frame (17), four rock bolts (2607) are provided, the four rock bolts (2607) are distributed symmetrically with respect to the horizontal line of the filter element frame (2604), and the rock bolts (2607) extend through the filter element frame (2604) to the inside of the intake box (2601).

10. 10. The multi-stage two-stream separator for mining according to claim 9, characterized in that the dust removal assembly (3) is a bag-type dust remover, the frame (4), the outer air supply pipe (16), the air intake frame (17) and the dust removal assembly (3) are in communication with each other, the number of the blowers (22), the air supply boxes (20) and the inner air supply pipe (21) is the same as the number of the sorting beds, and the air supply boxes (20) and the inner air supply pipe (21) are in communication with each other.

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