A new type of mining material receiving and dividing device

Abstract

The utility model discloses a novel mine material receiving and proportioning device, including material receiving hopper, feeding elbow, driving motor, proportioning cylinder and proportioning ratio regulator. Feeding elbow is located in the proportioning cylinder, and its upper port is coaxially arranged with the proportioning cylinder and is connected with the material receiving hopper, and the lower port is arranged in bias; driving motor drives feeding elbow to rotate. The inner wall of proportioning cylinder is equipped with shunt vertical board and shunt arc plate, and is enclosed into sample material pass, and the rest is waste material pass. Proportioning ratio regulator is composed of fixed baffle and rotatable baffle that can rotate around the shaft, and the proportioning ratio is accurately controlled through adjusting the included angle of the two. The device can realize flexible and accurate adjustment of the proportioning ratio, improve material distribution uniformity and sampling representativeness, and has the advantages of high automation degree, reliable operation, strong adaptability and the like, and effectively meets the proportioning needs of various mineral materials.

Description

Technical Field

[0001] This utility model relates to the field of mining engineering technology, specifically a new type of mining receiving and reducing device. Background Technology

[0002] In mining production, raw material processing, and quality testing, sampling and fractionation of bulk materials such as ores and coal are crucial for ensuring sample representativeness and accurate analysis of material composition and quality. Traditional fractionation equipment generally employs a fixed fractionation ratio design, such as fixed grids, sluices, or rotary fractionators. The fractionation ratio is determined during equipment design and manufacturing, and cannot be flexibly adjusted according to material characteristics (such as particle size distribution, moisture content, and flowability) or actual sampling requirements. This fixed fractionation mode is ill-suited to diverse material types and process demands, especially when dealing with ores from different sources and with different properties. It often results in insufficient sample representativeness, affecting the accuracy of subsequent component analysis, grade determination, and process testing.

[0003] Furthermore, many existing devices have significant shortcomings in terms of material distribution uniformity. Material segregation, accumulation, or blockage easily occurs during sampling, resulting in excessive or insufficient samples in some areas, failing to accurately reflect the overall material properties. This is especially true when processing highly viscous, moist, or wide-sized materials; traditional equipment is more prone to uneven feeding and blockages, further reducing the consistency and reliability of sampling.

[0004] In terms of automation, most existing sample reduction devices still rely on manual operation for adjustment, such as manually adjusting the baffle position or replacing the sample reduction components. This is not only inefficient but also introduces human error. The lack of real-time monitoring and feedback mechanisms makes it impossible to achieve precise control and dynamic adjustment of the sample reduction process, failing to meet the development needs of modern mineral processing for automation, intelligence, and high-precision sampling.

[0005] In terms of equipment structure and reliability, traditional reducing devices often suffer from problems such as complex structure, easy wear, poor sealing, and weak anti-interference ability. Especially under harsh working conditions (such as high dust, high humidity, and large particle impact), the equipment life is shortened and the maintenance frequency is high, affecting the continuity and stability of production. At the same time, many devices perform poorly when processing large volumes or materials with poor flowability, with limited processing capacity, making it difficult to adapt to large-scale, high-efficiency production rhythms. Utility Model Content

[0006] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a new type of mining receiving and reducing device, which can achieve flexible and precise adjustment of the reducing ratio, improve the uniformity of material distribution, improve the automation level and operational reliability of the equipment, and adapt to various material characteristics and large-scale processing needs, thereby effectively improving the representativeness of sampling and the accuracy of subsequent analysis.

[0007] The technical solution adopted by this utility model to achieve the above objectives is: a new type of mining receiving and reducing device, including a receiving hopper, a feeding bend, a drive motor, a reducing cylinder, and a reducing ratio adjuster.

[0008] The feeding bend is arranged inside the shrinking cylinder, the upper port of the feeding bend is coaxial with the shrinking cylinder, the receiving hopper is arranged above the feeding bend and connected to the upper port, the lower port of the feeding bend is offset from the axis of the shrinking cylinder, and the drive motor is poweredly connected to the upper port of the feeding bend.

[0009] The inner wall of the shrinking cylinder is fixed with two sets of radially distributed diversion vertical plates. The inner side of the diversion vertical plates is fixed with a diversion arc plate that is concentrically arranged with the shrinking cylinder. The diversion vertical plates and the diversion arc plates form a sample passage. The area in the shrinking cylinder outside the sample passage is set as a waste passage.

[0010] The reduction ratio adjuster includes a fixed baffle and a rotating baffle arranged on the inner side of the top of the sample inlet and distributed radially. The rotating baffle rotates around the axis of the reduction cylinder within the axial projection range of the sample inlet.

[0011] Based on the above technical solutions, the following technical solutions are provided to ensure the stable assembly and operation of the aforementioned components.

[0012] It also includes a support member, the top end of the reducing cylinder is fixedly installed below the support member, the upper end of the feeding bend is rotatably installed in the support member, the drive motor is fixedly installed on the support member, and the receiving hopper is assembled above the support member.

[0013] Based on the above technical solutions, in order to ensure that the ore received by the receiving hopper can be stably transported to the upper end of the feeding bend in a uniformly distributed manner, the following technical solutions are provided.

[0014] The bottom of the receiving hopper is connected to a connecting pipe, which is rotatably connected to the upper port of the feeding bend. Two sets of vibrating motors are mounted on the outside of the receiving hopper in a symmetrical arrangement.

[0015] Based on the above technical solutions, in order to ensure that the drive motor can drive the feeding bend to operate stably, so that the feeding bend can operate stably around the axis of its upper port, thereby achieving precise and stable reduction processing of the ore, the following technical solutions are provided.

[0016] The drive motor is connected to the upper port of the feeding bend via a reducer. The drive motor is a servo motor, and the reducer is a planetary reducer.

[0017] Based on the above technical solutions, in order to ensure that the shrinkage regulator and other components in the shrinkage cylinder can be conveniently and stably assembled in the screening cylinder, and at the same time ensure the stable operation of each component and achieve accurate shrinkage of the ore, the following technical solutions are provided.

[0018] The inner wall of the reducing cylinder is fixedly connected to a connecting bracket arranged below the feeding bend. The connecting bracket is fixedly connected to an installation shaft that is coaxial with the reducing cylinder. An installation sleeve is mounted on the installation shaft. The fixed baffle is fixedly installed in the reducing cylinder and is in close contact with the inner wall of the installation sleeve, the reducing cylinder, and one of the flow dividers. The rotating baffle is fixedly installed around the installation sleeve and rotates around the installation shaft.

[0019] Based on the above technical solution, in order to ensure that the ore separated by the fixed baffle and the rotating baffle can effectively enter the sample outlet and the waste outlet respectively, and to achieve the separate feeding of sample and waste, the following technical solution is provided when adjusting the attitude of the reduction ratio adjuster.

[0020] An outer guide cone and an inner guide cone are fixedly connected to both sides of the rotating baffle. The outer guide cone is positioned away from the fixed baffle, and its upper and lower edges are in contact with the inner wall of the reducing cylinder and the top of the flow-dividing arc plate, respectively. The inner guide cone is positioned closer to the fixed baffle, with its upper edge in contact with the outer wall of the mounting sleeve and its lower edge extending to the outer side of the flow-dividing arc plate. The fixed baffle is in contact with the inner guide cone. A guide inclined plate is fixedly connected to the flow-dividing vertical plate and the flow-dividing arc plate. The guide inclined plate is positioned in the waste material outlet.

[0021] The beneficial effects of this utility model are: 1. It achieves flexible and precise adjustment of the reduction ratio. Through an innovatively designed reduction ratio adjuster, a rotating baffle that can rotate around an axis works in conjunction with a fixed baffle to steplessly and precisely adjust the reduction ratio within a predetermined range according to the specific characteristics of the material (such as particle size and moisture content) and analytical requirements. This completely overcomes the shortcomings of traditional equipment with fixed reduction ratios and poor adaptability, and greatly improves the relevance and representativeness of sampling.

[0022] 2. Ensuring high sample uniformity and representativeness, the off-axis, continuously rotating feed bend ensures material circulation and even distribution across the entire cross-section of the reducing cylinder, effectively preventing material segregation, accumulation, and blockage. Combined with the precise flow guidance of the diversion vertical plate and arc plate, this guarantees that each reducing sample obtains a uniformly distributed sample truly representative of the entire batch's characteristics, providing a reliable foundation for subsequent component analysis and grade identification.

[0023] 3. The automation level of the equipment has been improved. The drive system adopts a servo motor and planetary reducer, which can realize stepless and precise control of the speed of the feeding bend, with fast response and high speed adjustment accuracy. If further combined with self-locking adjustment mechanisms such as worm gears and worm wheels and angle scale markings, the semi-automatic or fully automatic precise setting and locking of the rotating baffle angle can be realized, which greatly reduces manual operation intervention and subjective error, and provides a hardware foundation for building an intelligent sampling system.

[0024] 4. The overall reliability and durability of the equipment have been enhanced. Key components such as the receiving hopper are made of wear-resistant and corrosion-resistant stainless steel with polished inner walls; the feeding bend is supported by high-precision bearings and equipped with a sealing and lubrication system; the transmission system has a robust structure and is equipped with temperature monitoring. These designs enable the equipment to operate stably for extended periods in harsh conditions such as high dust, high humidity, and large particle impact, significantly reducing the failure rate and maintenance frequency, and extending its service life.

[0025] 5. The structural design and processing capacity have been optimized. The modular structural design (such as the segmented design of the split drum) facilitates manufacturing, installation, and maintenance. The symmetrically arranged vibratory motors and adjustable excitation force design, combined with the smooth bucket walls and anti-clogging devices, ensure smooth and uniform feeding of various mineral materials (including sticky and wet materials), effectively improving the equipment's adaptability to different materials and its overall processing capacity. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the reducing cylinder and other components. Figure 3 for Figure 2 A structural diagram from another perspective; Figure 4 A schematic diagram of the components assembled inside the reducing cylinder; Figure 5 for Figure 4 A structural diagram from another perspective; Figure 6 A schematic diagram of the assembly of various components in the reducing cylinder; Figure 7 This is a structural diagram of the rotating baffle and its connecting components.

[0027] In the diagram: 1 receiving hopper, 11 connecting pipe, 12 vibrating motor, 2 feeding bend, 21 upper port, 22 lower port, 3 drive motor, 31 reducer, 4 reducing cylinder, 41 diverting vertical plate, 42 diverting arc plate, 43 sample material outlet, 44 waste material outlet, 45 connecting bracket, 46 mounting shaft, 47 mounting sleeve, 48 guide inclined plate, 51 fixed baffle, 52 rotating baffle, 521 outer guide cone, 522 inner guide cone, 6 support component. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7 A novel mining receiving and reducing device includes a receiving hopper 1, a feeding bend 2, a drive motor 3, a reducing cylinder 4, and a reducing ratio adjuster.

[0030] The feeding bend 2 is arranged inside the shrinking cylinder 4. The upper port 21 of the feeding bend 2 is coaxial with the shrinking cylinder 4. The receiving hopper 1 is arranged above the feeding bend 2 and is connected to the upper port 21. The lower port 22 of the feeding bend 2 is offset from the axis of the shrinking cylinder 4. The drive motor 3 is connected to the upper port 21 of the feeding bend 2.

[0031] Two sets of radially distributed diversion vertical plates 41 are fixed to the inner wall of the shrinking cylinder 4. Diversion arc plates 42, which are concentrically arranged with the shrinking cylinder 4, are fixed to the inner side of the diversion vertical plates 41. The diversion vertical plates 41 and the diversion arc plates 42 form a sample passage 43. The area outside the sample passage 43 in the shrinking cylinder 4 is set as a waste passage 44.

[0032] The reduction ratio adjuster includes a fixed baffle 51 and a rotating baffle 52 arranged on the inner side of the top of the sample inlet 43 and distributed radially. The rotating baffle 52 rotates around the axis of the reduction cylinder 4 within the axial projection range of the sample inlet 43.

[0033] The receiving hopper 1 is used to receive the ore to be slit and sampled and to stably transmit it to the feeding bend 2. The upper port 21 of the feeding bend 2 is connected to the receiving hopper 1 and rotates stably around the common axis of the upper port 21 and the slit cylinder 4 under the drive of the drive motor 3. Since the lower port 22 of the feeding bend 2 is offset from the axis of the slit cylinder 4, the ore falling from the lower port 22 of the feeding bend 2 can deviate from the axis of the slit cylinder 4. During the continuous operation of the feeding bend 2, the ore output from the lower port 22 can repeatedly fall into the axial projection area of ​​the sample outlet 43 and the waste outlet 44, thereby realizing uniform and stable slit processing of the ore.

[0034] The ore falling into the sample inlet 43 is eventually separated from the bottom of the reducing cylinder 4 to achieve uniform sampling of the ore and to carry out various applications such as subsequent mineral composition analysis, grading test, and process test.

[0035] The actual area of ​​the sample inlet 43 that receives ore can be adjusted by the reduction ratio adjuster. In specific adjustment, it can be flexibly adjusted according to different ore characteristics, particle size distribution and analysis requirements. Specifically, the angle between the rotating baffle 52 and the fixed baffle 51 can be adjusted by adjusting the position and posture of the rotating baffle 52. The ore falling between the fixed baffle 51 and the rotating baffle 52 will eventually enter the sample inlet 43 enclosed by the diversion vertical plate 41 and the diversion arc plate 42, while the ore falling outside the fixed baffle 51 and the rotating baffle 52 will eventually enter the waste outlet 44 for unified discharge.

[0036] By designing the included angle between the two sets of separation vertical plates 41, the maximum range of the ore reduction ratio can be determined. When the included angle between the two sets of separation vertical plates is designed to be 90°, the rotating baffle 52 can be adjusted within the range of 90° so that the included angle between the rotating baffle 52 and the fixed baffle 51 is set within the range of 0 to 90°, thereby achieving precise adjustment of the reduction ratio within the range of 1:4.

[0037] To ensure the stable assembly and operation of the aforementioned components, the following technical solutions are provided.

[0038] It also includes a support member 6, the top of the reducing cylinder 4 is fixedly installed below the support member 6, the upper port 21 of the feeding bend 2 is rotatably installed in the support member 6, the drive motor 3 is fixedly installed on the support member 6, and the receiving hopper 1 is assembled above the support member 6.

[0039] The support component 6 ensures that the receiving hopper 1, feeding bend 2, drive motor 3, and reducing cylinder 4 are matched and combined according to the design requirements, and ensures that the drive motor 3 can drive the feeding bend 2 to operate stably around the axis of the reducing cylinder 4, so as to achieve precise and stable reducing of the ore, achieve uniform acquisition of the sample to make it sufficiently representative, and meet the subsequent application requirements of the sample.

[0040] To ensure that the ore received by the receiving hopper 1 can be stably conveyed to the upper port 21 of the feeding bend 2 in a uniformly distributed manner, the following technical solution is provided.

[0041] The bottom of the receiving hopper 1 is connected to a connecting pipe 11, which is rotatably connected to the upper port 21 of the feeding bend pipe 2. Two sets of vibrating motors 12 are mounted on the outside of the receiving hopper 1 in a symmetrical arrangement.

[0042] The receiving hopper 1 is made of stainless steel, which has excellent corrosion resistance, wear resistance and high temperature resistance. Its inner wall is polished to a smooth surface to reduce material adhesion. An anti-clogging device can be installed at the bottom, and the capacity can be selected according to the different minerals being processed. The receiving hopper 1 has an overall structure that is wider at the top and narrower at the bottom. It is assembled to the support component 6 by means of fixed installation or pull-out installation, so as to achieve stable installation or replaceable operation of the receiving hopper 1.

[0043] The connection pipe 11 allows the ore in the receiving hopper 1 to enter the upper port 21 of the feeding bend 2 along the connection pipe 11. When the feeding bend 2 is driven by the drive motor 3, the two will not interfere with each other in spatial movement.

[0044] The vibration frequency of the vibration motor 12 can be adjusted within the range of 10 to 50 Hz. Equipped with a frequency converter, it can steplessly adjust the excitation force and amplitude. The vibration mode can be switched between elliptical vibration, linear vibration, and random vibration.

[0045] To ensure that the drive motor 3 can drive the feeding bend 2 to operate stably, so that the feeding bend 2 can operate stably around the axis of its upper port 21, thereby achieving precise and stable reduction processing of the ore, the following technical solution is provided.

[0046] The drive motor 3 is connected to the upper port 21 of the feeding bend 2 via the reducer 31. The drive motor 3 is a servo motor and the reducer 31 is a planetary reducer.

[0047] The upper port 21 of the feeding bend 2 is assembled to the support 6 by a rolling bearing consisting of a deep groove ball bearing. The high precision ensures the stable operation of the upper port 21 of the feeding bend 2 while being able to withstand radial and axial loads. Equipped with a sealing device and a lubrication system, the feeding bend 2 can adapt to harsh working conditions while operating stably, and achieve uniform reduction of the ore.

[0048] The drive motor 3 adopts a servo motor to achieve stepless speed regulation with an adjustment accuracy of ±1% and a response time of no more than 3 seconds. The planetary reducer adopts a three-stage planetary gear structure with an adjustable reduction ratio, high transmission efficiency, low noise, and long service life. The output end of the planetary reducer is equipped with a drive gear, while the upper port 21 of the feeding bend 2 is equipped with a transmission gear ring that meshes with the drive gear. The power output by the planetary reducer can drive the feeding bend 2 to rotate stably around the upper port 21 and the axis of the shrinking cylinder 4 through the combination of the drive gear and the transmission gear ring.

[0049] The entire transmission system, consisting of a servo motor, planetary reducer, drive gear, and transmission gear ring, can also be equipped with a temperature monitoring device and a lubrication system to ensure long-term stable operation in harsh environments.

[0050] To ensure that the shrinkage regulator and other components in the shrinkage cylinder 4 can be easily and stably assembled in the screening cylinder, and to ensure the stable operation of each component and achieve accurate shrinkage of the ore, the following technical solution is provided.

[0051] A connecting bracket 45 arranged below the feeding bend 2 is fixedly connected to the inner wall of the shrinking cylinder 4. An installation shaft 46 coaxially arranged with the shrinking cylinder 4 is fixedly connected to the connecting bracket 45. An installation sleeve 47 is mounted on the installation shaft 46. A fixed baffle 51 is fixedly installed in the shrinking cylinder 4 and keeps in contact with the inner wall of the installation sleeve 47, the shrinking cylinder 4 and one of the flow vertical plates 41. A rotating baffle 52 is fixedly installed around the installation sleeve 47 and rotates around the installation shaft 46.

[0052] The connecting bracket 45 ensures that the mounting shaft 46 is stably installed on the axis of the reducing cylinder 4 and provides a stable upper support point for the fixed installation of the fixed baffle 51. The mounting sleeve 47 can rotate around the mounting shaft 46 to adjust the tilt angle of the rotating baffle 52, and the mounting sleeve 47 and the rotating baffle 52 are locked by the locking nut screwed onto the mounting shaft 46. Alternatively, the mounting sleeve 47 can be connected to a worm gear mechanism. By rotating the worm, the worm gear and the mounting sleeve 47 can be rotated synchronously to achieve precise adjustment of the tilt angle of the rotating baffle 52. At the same time, the worm gear has a self-locking characteristic. After the attitude adjustment of the rotating baffle 52 is completed, the worm gear can lock and position the worm gear, the mounting sleeve 47, and the rotating baffle 52.

[0053] The mounting sleeve 47 or the mounting shaft 46 can be equipped with scale markings to indicate the deflection angle, so as to intuitively understand the included angle between the rotating baffle 52 and the fixed baffle 51.

[0054] To ensure the stable installation of each component in the shrinking cylinder 4, and to ensure the cooperation between the shrinking cylinder 4 and the feeding bend 2 and the support 6, as well as to separate the shrunk sample material from the waste material, the shrinking cylinder 4 can be set as an axially distributed multi-segment structure, which facilitates the processing and manufacturing of the equipment.

[0055] When adjusting the attitude of the reduction ratio adjuster, in order to ensure that the ore separated by the fixed baffle 51 and the rotating baffle 52 can effectively enter the sample outlet 43 and the waste outlet 44 respectively, and to achieve the separation of sample and waste material feeding, the following technical solution is provided.

[0056] An outer guide cone 521 and an inner guide cone 522 are fixedly connected to both sides of the rotating baffle 52, respectively. The outer guide cone 521 is located on the side away from the fixed baffle 51, and its upper and lower edges are in contact with the inner wall of the reducing cylinder 4 and the top of the diverting arc plate 42, respectively. The inner guide cone 522 is located on the side close to the fixed baffle 51, with its upper edge in contact with the outer wall of the mounting sleeve 47 and its lower edge extending to the outer side of the diverting arc plate 42. The fixed baffle 51 is in contact with the inner guide cone 522. A guide inclined plate 48 is fixedly connected to the diverting vertical plate 41 and the diverting arc plate 42. The guide inclined plate 48 is located in the waste outlet 44.

[0057] The outer guide cone 521 and the inner guide cone 522 operate synchronously with the mounting sleeve 47 and the rotating baffle 52. The outer guide cone 521 can guide the ore falling between the two diversion vertical plates 41 and outside the rotating baffle 52 to the waste outlet 44. The inner guide cone 522 can guide the ore falling between the fixed baffle 51 and the rotating baffle 52 and inside the diversion arc plate 42 to the sample outlet 43. This ensures the uniformity and accuracy of the ore reduction processing and ensures that the included angle between the rotating baffle 52 and the fixed baffle 51 can represent the actual reduction ratio.

[0058] All the ore falling into the waste outlet 44 can be separated and discharged under the action of the guide plate 48, effectively distinguishing it from the sample falling into the sample outlet 43, thus avoiding secondary mixing of the sample and the waste.

[0059] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel mining receiving and reducing device, characterized in that: Includes receiving hopper (1), feeding bend (2), drive motor (3), shrinking cylinder (4), and shrinking ratio adjuster; The feeding bend (2) is arranged inside the shrinking cylinder (4). The upper port (21) of the feeding bend (2) is coaxial with the shrinking cylinder (4). The receiving hopper (1) is arranged above the feeding bend (2) and is connected to the upper port (21). The lower port (22) of the feeding bend (2) is offset from the axis of the shrinking cylinder (4). The drive motor (3) is connected to the upper port (21) of the feeding bend (2). The inner wall of the shrinking cylinder (4) is fixed with two sets of radially distributed diversion vertical plates (41). The inner side of the diversion vertical plates (41) is fixed with a diversion arc plate (42) arranged concentrically with the shrinking cylinder (4). The diversion vertical plates (41) and the diversion arc plate (42) form a sample outlet (43). The area outside the sample outlet (43) in the shrinking cylinder (4) is set as a waste outlet (44). The reduction ratio adjuster includes a fixed baffle (51) and a rotating baffle (52) arranged on the inner side of the top of the sample inlet (43) and distributed radially. The rotating baffle (52) rotates around the axis of the reduction cylinder (4) within the axial projection range of the sample inlet (43).

2. The novel mining receiving and reducing device according to claim 1, characterized in that: It also includes a support member (6), the top end of the shrinking cylinder (4) is fixedly installed below the support member (6), the upper port (21) of the feeding bend (2) is rotatably installed in the support member (6), the drive motor (3) is fixedly installed on the support member (6), and the receiving hopper (1) is assembled above the support member (6).

3. A novel mining receiving and reducing device according to claim 2, characterized in that: The bottom of the receiving hopper (1) is connected to a connecting pipe (11), which is rotatably connected to the upper port (21) of the feeding bend (2). Two sets of vibrating motors (12) are mounted on the outside of the receiving hopper (1) in a symmetrical arrangement.

4. A novel mining receiving and reducing device according to claim 2, characterized in that: The drive motor (3) is connected to the upper port (21) of the feeding bend (2) via a reducer (31). The drive motor (3) is a servo motor, and the reducer (31) is a planetary reducer.

5. A novel mining receiving and reducing device according to claim 1, characterized in that: The inner wall of the shrinking cylinder (4) is fixedly connected to a connecting bracket (45) arranged below the feeding bend (2). The connecting bracket (45) is fixedly connected to an installation shaft (46) that is coaxially arranged with the shrinking cylinder (4). An installation sleeve (47) is mounted on the installation shaft (46). The fixed baffle (51) is fixedly installed in the shrinking cylinder (4) and is in close contact with the inner wall of the installation sleeve (47), the shrinking cylinder (4), and one of the flow vertical plates (41). The rotating baffle (52) is fixedly installed around the installation sleeve (47) and rotates around the installation shaft (46).

6. A novel mining receiving and reducing device according to claim 5, characterized in that: An outer guide cone (521) and an inner guide cone (522) are fixedly connected to both sides of the rotating baffle (52). The outer guide cone (521) is arranged on the side away from the fixed baffle (51), and the upper and lower edges of the outer guide cone (521) are in contact with the inner wall of the shrinking cylinder (4) and the top of the flow-dividing arc plate (42), respectively. The inner guide cone (522) is arranged on the side closer to the fixed baffle (51). The upper edge of the inner guide cone (522) is in contact with the outer wall of the mounting sleeve (47), and the lower edge of the inner guide cone (522) extends to the outside of the diversion arc plate (42). The fixed baffle (51) is in contact with the inner guide cone (522). A guide inclined plate (48) is fixedly connected to the diversion vertical plate (41) and the diversion arc plate (42). The guide inclined plate (48) is arranged in the waste outlet (44).

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