Coal transport screening control device

Abstract

The application discloses a coal conveying and screening control device, and relates to the technical field of coal conveying and screening control devices, which comprises a screening component, an adaptive component and a filter screen component.

Description

Technical Field

[0001] This invention relates to the technical field of coal transportation screening, and more particularly to a coal transportation screening control device. Background Technology

[0002] Coal screening is an indispensable step in coal transportation. Through screening, different types of coal can be separated to meet the needs of different users.

[0003] In the process of coal screening, filter screens are usually used to screen the coal. During long-term screening, some large pieces of material will fall on the filter screen and cannot roll off in time. If the screening device cannot be adjusted according to the actual situation, it may not be able to achieve the best screening effect, resulting in low screening efficiency. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Given that the existing screening devices cannot be adjusted according to actual conditions, which may prevent the achievement of optimal screening results and lead to low screening efficiency, a coal transportation screening control device is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a screening component, including a screening container and a screening support, a feed hopper disposed on the screening container, a collection hopper disposed on the screening support, and a screening plate disposed on the screening support;

[0007] The adaptive component includes a power assembly disposed on the screening support, a detection assembly disposed on the power assembly, and a flow control assembly disposed on the detection assembly;

[0008] The filter assembly includes a filter holder disposed within the screening chamber, a filter body disposed on the filter holder, and an anti-clogging component disposed on the filter body.

[0009] As a preferred embodiment of the coal transportation screening control device of the present invention, the power assembly includes a power support mounted on the screening support, a power push rod mounted on the power support, a power push block mounted on the power push rod, and a power push groove mounted on the screening container.

[0010] The power push groove is adapted to the power push block.

[0011] As a preferred embodiment of the coal transportation screening control device of the present invention, the detection component includes a detection stand mounted on the power support, a detection conveyor belt mounted on the detection stand, a detection protrusion mounted on the detection conveyor belt, an abutting protrusion mounted on the screening container, and a feeder mounted on the detection stand.

[0012] The abutting protrusion is adapted to the detection protrusion.

[0013] As a preferred embodiment of the coal transportation screening control device of the present invention, the power supply component includes a power supply box disposed on the power support, a power supply switch disposed on the power supply box, and a trigger protrusion disposed on the screening container.

[0014] The power supply switch and the electric push rod are electrically connected.

[0015] As a preferred embodiment of the coal transportation screening control device of the present invention, the flow control component includes a discharge port opened on the feed hopper, a flow control plate disposed on the feed hopper, and a drive component disposed on the flow control plate.

[0016] As a preferred embodiment of the coal transportation screening control device of the present invention, the driving component includes a fixed frame disposed on the screening support, a driving protrusion disposed on the fixed frame, and a driving groove formed on the flow control plate.

[0017] The driving protrusion is adapted to the driving groove.

[0018] As a preferred embodiment of the coal transportation screening control device of the present invention, the anti-clogging component includes a tensioning horizontal plate disposed on the filter screen holder, a tensioning groove opened on the screening box, an elastic element disposed on the filter screen holder, and a locking element disposed on the tensioning horizontal plate.

[0019] In a preferred embodiment of the coal transportation screening control device of the present invention, the elastic element includes an elastic slide rod disposed on the filter screen holder, a first slide groove formed on the screening container, and an elastic spring sleeved on the elastic slide rod.

[0020] In a preferred embodiment of the coal transportation screening control device of the present invention, the positioning component includes a positioning bracket disposed on the screening support, a positioning adsorption plate disposed on the positioning bracket, and a limiting bracket disposed on the screening container.

[0021] As a preferred embodiment of the coal transportation screening control device of the present invention, the stretching cross plate further includes a limiting plate, a limiting slide rod, a limiting spring, and a limiting adsorption block. The limiting plate is disposed on the stretching cross plate, the limiting slide rod is disposed at both ends of the limiting plate, the limiting spring is sleeved on the limiting slide rod, and the limiting adsorption block is disposed at one end of the limiting slide rod.

[0022] The beneficial effects of the coal transportation screening control device of the present invention are as follows: the coal raw material is screened and filtered by the screening component. During the screening process, the degree of coal accumulation on the screening box is detected by the adaptive component. When the filter body is blocked, it can be dealt with in a timely manner to prevent the low screening and filtration efficiency caused by the blockage of the filter body and improve the working efficiency of the filter body. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a schematic diagram of the overall structure of the coal transportation screening control device in this invention.

[0025] Figure 2 This is a partial structural diagram of the adaptive component in this invention.

[0026] Figure 3 This is an exploded structural diagram of the power component in this invention.

[0027] Figure 4 In this invention Figure 3 Enlarged view of part A in the middle.

[0028] Figure 5 This is a three-dimensional structural diagram of the feed hopper in this invention.

[0029] Figure 6 In this invention Figure 1 Enlarged view of section B.

[0030] Figure 7 This is a schematic diagram of the overall structure of the screening container in this invention.

[0031] Figure 8 This is a partial structural diagram of the filter component in this invention.

[0032] Figure 9 This is a schematic diagram of the overall structure of the anti-clogging component in this invention.

[0033] Figure label:

[0034] 100. Screening component; 101. Screening container; 102. Screening support; 103. Feed hopper; 104. Collection hopper; 105. Screening plate; 200. Adaptive component; 201. Power assembly; 202. Detection assembly; 203. Flow control assembly; 300. Filter screen component; 301. Filter screen holder; 302. Filter screen body; 303. Anti-clogging assembly; 201a. Power support; 201b. Power push rod; 201c. Power push block; 201d. Power push groove; 202a. Detection stand; 202b. Detection conveyor belt; 202c. Detection protrusion; 202d. Abutment protrusion; 202e. Power supply component; 202e-1. Power supply box; 202e-2. Power supply switch ; 202e-3, Triggering protrusion; 203a, Discharge port; 203b, Flow control plate; 203c, Driving component; 203c-1, Fixed stand; 203c-2, Driving protrusion; 203c-3, Driving slide; 303a, Stretching cross plate; 303b, Stretching slide; 303c, Elastic component; 303d, Positioning component; 303c-1, Elastic slide bar; 303c-2, First slide; 303c-3, Elastic spring; 303d-1, Positioning bracket; 303d-2, Positioning adsorption plate; 303d-3, Limiting bracket; 303a-1, Limiting plate; 303a-2, Limiting slide bar; 303a-3, Limiting spring; 303a-4, Limiting adsorption block. Detailed Implementation

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0038] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0039] Example 1

[0040] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a coal transportation screening control device, including a screening component 100, comprising a screening container 101 and a screening support 102, a feed hopper 103 disposed on the screening container 101, a collection hopper 104 disposed on the screening support 102, and a screening plate 105 disposed on the screening support 102; wherein, a vibration motor is disposed at one end of the screening container 101 to generate vibration force to shake the particulate matter on the filter screen component 300, thereby preventing the material from accumulating in the screen holes. By feeding material into the feed hopper 103, the raw material enters the screening container 101 through the feed hopper 103 for screening. After screening, smaller coal particles are collected through the collection hopper 104, while larger coal particles are discharged through the filter screen component 300 from the screening plate 105, thereby realizing the screening of coal.

[0041] The adaptive component 200 includes a power assembly 201 disposed on the screening support 102, a detection assembly 202 disposed on the power assembly 201, and a flow control assembly 203 disposed on the detection assembly 202.

[0042] Specifically, the power assembly 201 includes a power support 201a mounted on the screening support 102, a power push rod 201b mounted on the power support 201a, a power push block 201c mounted on the power push rod 201b, and a power push groove 201d mounted on the screening container 101. The power push groove 201d is adapted to the power push block 201c. The power support 201a is located on the side of the screening support 102 away from the screening plate 105, and the power push rods 201b are symmetrically arranged at the upper end of the power support 201a. The power push rods 201b are programmed to remain stationary for a period of time when they reach their highest point. After retraction, the power push block 201c is located at the upper end of the power push rod 201b, and its end cross-section is circular. The power push groove 201d is opened below the screening container 101 at a position corresponding to the power push block 201c, and its cross-section is semi-arc. It is combined with the power push block 201c to connect the power push rod 201b and the screening container 101. The detection component 202 provides data for the power push rod 201b to start, so that the power push rod 201b pushes the screening container 101, and the angle between the screening container 101 and the screening support 102 increases, thereby enabling the large particles of coal on the filter screen body 302 to be dumped.

[0043] The detection component 202 includes a detection stand 202a mounted on a power support 201a, a detection conveyor belt 202b mounted on the detection stand 202a, a detection protrusion 202c mounted on the detection conveyor belt 202b, an abutting protrusion 202d mounted on the screening container 101, and a feeder 202e mounted on the detection stand 202a. The abutting protrusion 202d and the detection protrusion 202c are adapted to each other. The detection stand 202a is located on the side of the power support 201a away from the filter screen component 300. The detection stand 202a and the detection conveyor belt 202b are rotatably connected, and there is a certain resistance between the detection stand 202a and the detection conveyor belt 202b. Only when the impurities on the filter screen component 300 accumulate to a certain extent can the filter screen component 300 drive the detection conveyor belt 202b to slide on the detection stand 202a, thereby realizing the detection of the accumulation on the filter screen component 300.

[0044] Furthermore, the power supply component 202e includes a power supply box 202e-1 mounted on the power support 201a, a power supply switch 202e-2 mounted on the power supply box 202e-1, and a triggering protrusion 202e-3 mounted on the screening container 101. The power supply switch 202e-2 is electrically connected to the electric push rod. The power supply box 202e-1, mounted on the power support 201a, is used to store electrical energy. The power supply switch 202e-2, mounted on the power supply box 202e-1, is used to control whether the power supply box 202e-1 supplies electrical energy to the power assembly 201. The load-bearing condition of the filter screen component 300 on the screening container 101 drives the detection conveyor belt 202b on the detection stand 202a to rotate, causing the triggering protrusion 202e-3 to trigger the power supply switch 202e-2, thereby providing power to the power push rod 201b.

[0045] Operation process: When screening coal raw materials, the raw materials are fed into the feed hopper 103 and reach the screening container 101. The filter screen component 300 in the screening container 101 is used to screen the coal raw materials. During the screening process, large particles accumulate on the filter screen component 300, causing the weight of the screening container 101 to increase and rotate along the hinge point on the screening support 102. Because the abutting protrusion 202d on the screening container 101 contacts the detection protrusion 202c, it can support the screening container 101 when there is no accumulation of material. When some large particles accumulate on the screening container 101, the screening container 101... By engaging the contacting protrusion 202d with the detection protrusion 202c, the detection conveyor belt 202b moves on the detection bracket, causing the trigger protrusion 202e-3 on the screening container 101 to engage with the power supply switch 202e-2. The power supply box 202e-1 then discharges to provide power to the power push rod 201b. At this time, the power push rod 201b drives the power push block 201c to engage with the power push groove 201d, pushing the screening container 101 and increasing the angle between the screening container 101 and the screening, making it easier for large materials to be discharged from the screening container 101, thus facilitating screening and improving the screening effect of the screening container 101.

[0046] Example 2

[0047] Reference Figures 5-6This is the second embodiment of the present invention, which is based on the previous embodiment, but differs in that: the flow control component 203 includes a discharge port 203a opened on the feed hopper 103, a flow control plate 203b disposed on the feed hopper 103, and a driving component 203c disposed on the flow control plate 203b. The flow control plate 203b is disposed at the bottom of the feed hopper 103 and is slidably connected to the feed hopper 103. It is adapted to the discharge port 203a. The driving component 203c drives the flow control plate 203b to move, so that it can discharge material within a suitable range, effectively preventing the filter screen component 300 from clogging and greatly rationalizing the material discharge in the coal screening process.

[0048] The rest of the structure is the same as in Example 1.

[0049] The driving component 203c includes a fixed frame 203c-1 mounted on the screening support 102, a driving protrusion 203c-2 mounted on the fixed frame 203c-1, and a driving groove 203c-3 formed on the flow control plate 203b. The driving protrusion 203c-2 and the driving groove 203c-3 are adapted to each other. The fixed frame 203c-1 is symmetrically arranged on both sides of the screening support 102, and the driving protrusion 203c-2 is located on the side of the fixed frame 203c-1 near the flow control plate 203b. The driving protrusion 203c-2 and the driving groove 203c-3 are adapted to each other. The movement of the screening container 101 drives the feed hopper 103 to move, so that the flow control plate 203b slides under the restriction of the fixed frame 203c-1, controlling the size of the discharge port 203a, thereby effectively preventing the accumulation of filter screen components 300 during the filtration process.

[0050] Operation process: When the screening container 101 is rotated along the hinge point under force, the feed hopper 103 will also rotate along with the screening container 101. The flow control plate 203b is kept still by the fixed frame 203c-1, so that the feed hopper 103 partially blocks the discharge port 203a during the sliding process, thereby slowing down the discharge of material from the discharge port 203a and thus controlling the flow of material from the feed hopper 103. After the impurities on the screening container 101 are emptied, the screening container 101 is reset. At this time, the feed hopper 103 is reset along with the rotation of the screening container 101, so that the flow control plate 203b separates from the discharge port 203a and normal discharge is achieved.

[0051] Example 3

[0052] Reference Figures 1-9This is the third embodiment of the present invention, which differs from the second embodiment in that: the filter screen component 300 includes a filter screen holder 301 disposed in the screening container 101, a filter screen body 302 disposed on the filter screen holder 301, and an anti-clogging component 303 disposed on the filter screen body 302. The filter screen holder 301 is disposed in the screening container 101, and together with the filter screen body 302, it forms the filtration part of the screening component 100 for filtering coal raw materials. The anti-clogging component 303 is disposed on the filter screen component 300 for cleaning the filter screen body 302 and preventing low screening and filtration efficiency caused by clogging of the filter screen body 302.

[0053] The rest of the structure is the same as in Example 2.

[0054] Specifically, the anti-clogging component 303 includes a stretching cross plate 303a disposed on the filter screen holder 301, a stretching groove 303b opened on the screening container 101, an elastic element 303c disposed on the filter screen holder 301, and a locking element 303d disposed on the stretching cross plate 303a.

[0055] The elastic element 303c includes an elastic slide bar 303c-1 disposed on the filter screen holder 301, a first sliding groove 303c-2 opened on the screening container 101, and an elastic spring 303c-3 sleeved on the elastic slide bar 303c-1. The elastic slide bar 303c-1 is symmetrically arranged on both sides of the screening container 101. It is fixedly connected to the filter screen holder 301 and slidably connected to the first sliding groove 303c-2. The elastic spring 303c-3 is disposed on the side of the elastic slide bar 303c-1 away from the screening container 101. It is used to increase the path of the filter screen body 302 during the shaking process, thereby facilitating the cleaning of the filter screen body 302.

[0056] Furthermore, the positioning component 303d includes a positioning bracket 303d-1 disposed on the screening support 102, a positioning adsorption plate 303d-2 disposed on the positioning bracket 303d-1, and a limiting bracket 303d-3 disposed on the screening container 101. The positioning bracket 303d-1 is symmetrically arranged on the screening support 102. The contact position between the positioning adsorption plate 303d-2 and the limiting adsorption block 303d-4 is made of magnetic material. The limiting bracket 303d-3 is disposed above the stretching cross plate 303a and is used to limit the positioning component 303d.

[0057] Furthermore, the stretching cross plate 303a also includes a limiting plate 303a-1, a limiting slide rod 303a-2, a limiting spring 303a-3, and a limiting suction block 303a-4. The limiting plate 303a-1 is disposed on the stretching cross plate 303a, the limiting slide rod 303a-2 is disposed at both ends of the limiting plate 303a-1, the limiting spring 303a-3 is sleeved on the limiting slide rod 303a-2, and the limiting suction block 303a-4 is disposed at one end of the limiting slide rod 303a-2. The limiting plate 303a-1 is disposed above the stretching cross plate 303a, and the stretching cross plate 303a has a limiting clip adapted to the limiting plate 303a-1. The limiting plate 303a-1 and the limiting slot are slidably connected. The end of the limiting plate 303a-1 extends into the limiting slot. The cross section of the limiting plate 303a-1 is a right trapezoidal shape, with one triangular end extending into the limiting slot. The limiting slide rod 303a-2 is fixedly connected to the stretching cross plate 303a. The limiting slide rod 303a-2 and the limiting bracket 303d-3 are slidably connected. The limiting spring 303a-3 is sleeved on the limiting slide rod 303a-2 near one end of the stretching cross plate 303a. The limiting adsorption block 303a-4 is located at the end of the limiting slide rod 303a-2 near the positioning adsorption plate 303d-2.

[0058] Operation process: When the screening container 101 flips along the junction point to pour out large particles on the filter screen body 302, during the flipping process, the limiting plate 303a-1 on the stretching plate 303a begins to approach the positioning adsorption plate 303d-2 on the limiting bracket 303d-3. This continues until the limiting adsorption block 303a-4 reaches the height that the positioning adsorption plate 303d-2 can adsorb. At this point, the positioning adsorption plate 303d-2 begins to adsorb the limiting adsorption block 303a-4, causing the limiting plate 303a-1, driven by the limiting adsorption block 303a-4, to be pulled out of the limiting slot. Simultaneously, the limiting slide rod 303a-2 compresses the limiting spring 303a-3 to store force. After the stretching plate 303a is no longer limited by the limiting plate 303a-1, the filter screen bracket 301... The presence of movement gaps allows the mesh on the filter body 302 to deform under gravity. With the vibration of the vibrating motor, some particles stuck in the mesh can be peeled off the filter body 302. The blockage of the filter body 302 can also be resolved in time after the screening container 101 is emptied. During the slow reset process of the screening container 101, the clamping adsorption plate 303d-2 is still connected to the limiting adsorption block 303a-4 until it separates from the limiting adsorption block 303a-4. The elastic force of the limiting spring 303a-3 is released. At the same time, the limiting clamping plate 303a-1 is clamped on the stretching cross plate 303a to limit the stretching cross plate 303a. This allows the stretching cross plate 303a to straighten the filter body 302 through the filter clamping bracket 301, making it convenient for the filter body 302 to continue working.

[0059] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0060] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A coal transportation screening control device, characterized in that: include, The screening component (100) includes a screening container (101) and a screening support (102), a feed hopper (103) disposed on the screening container (101), a collection hopper (104) disposed on the screening support (102), and a screening plate (105) disposed on the screening support (102). The adaptive component (200) includes a power assembly (201) disposed on the screening support (102), a detection assembly (202) disposed on the power assembly (201), and a flow control assembly (203) disposed on the detection assembly (202). The filter component (300) includes a filter holder (301) disposed in the screening container (101), a filter body (302) disposed on the filter holder (301), and an anti-clogging component (303) disposed on the filter body (302). The anti-clogging component (303) includes a stretching cross plate (303a) disposed on the filter screen holder (301), a stretching groove (303b) opened on the screening container (101), an elastic element (303c) disposed on the filter screen holder (301), and a locking element (303d) disposed on the stretching cross plate (303a). The elastic element (303c) includes an elastic slide bar (303c-1) disposed on the filter screen holder (301), a first slide groove (303c-2) opened on the screening container (101), and an elastic spring (303c-3) sleeved on the elastic slide bar (303c-1). The positioning component (303d) includes a positioning bracket (303d-1) disposed on the screening support (102), a positioning adsorption plate (303d-2) disposed on the positioning bracket (303d-1), and a limiting bracket (303d-3) disposed on the screening container (101). The stretching cross plate (303a) further includes a limiting plate (303a-1), a limiting slide rod (303a-2), a limiting spring (303a-3), and a limiting suction block (303a-4). The limiting plate (303a-1) is disposed on the stretching cross plate (303a), the limiting slide rod (303a-2) is disposed at both ends of the limiting plate (303a-1), the limiting spring (303a-3) is sleeved on the limiting slide rod (303a-2), and the limiting suction block (303a-4) is disposed at one end of the limiting slide rod (303a-2).

2. The coal transportation screening control device as described in claim 1, characterized in that: The power assembly (201) includes a power support (201a) disposed on the screening support (102), a power push rod (201b) disposed on the power support (201a), a power push block (201c) disposed on the power push rod (201b), and a power push groove (201d) disposed on the screening container (101). The power push groove (201d) is adapted to the power push block (201c).

3. The coal transportation screening control device as described in claim 2, characterized in that: The detection assembly (202) includes a detection stand (202a) disposed on the power support (201a), a detection conveyor belt (202b) disposed on the detection stand (202a), a detection protrusion (202c) disposed on the detection conveyor belt (202b), an abutment protrusion (202d) disposed on the screening container (101), and a feed member (202e) disposed on the detection stand (202a). The abutting protrusion (202d) is adapted to the detection protrusion (202c).

4. The coal transportation screening control device as described in claim 3, characterized in that: The power supply component (202e) includes a power supply box (202e-1) disposed on the power support (201a), a power supply switch (202e-2) disposed on the power supply box (202e-1), and a trigger protrusion (202e-3) disposed on the screening container (101). The power supply switch (202e-2) is electrically connected to the electric push rod.

5. The coal transportation screening control device as described in claim 4, characterized in that: The flow control assembly (203) includes a discharge port (203a) opened on the feed hopper (103), a flow control plate (203b) disposed on the feed hopper (103), and a drive component (203c) disposed on the flow control plate (203b).

6. The coal transportation screening control device as described in claim 5, characterized in that: The driving component (203c) includes a fixed support (203c-1) disposed on the screening support (102), a driving protrusion (203c-2) disposed on the fixed support (203c-1), and a driving groove (203c-3) formed on the flow control plate (203b). The drive bump (203c-2) and the drive slide (203c-3) are adapted to each other.

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