Coal flow conveying system and control method of coal flow shaping device

Abstract

The invention provides a coal flow conveying system and a control method of a coal flow shaping device.The coal flow conveying system comprises a coal flow input part, the coal flow shaping device, a coal flow output part and a conveying belt, and the conveying belt sequentially conveys coal flow to the coal flow shaping device and the coal flow output part from the coal flow input part. The coal flow shaping device comprises a pressing roller assembly, a supporting frame, an adjusting piece and a first locking piece. The pressing roller assembly is arranged above the conveying belt. The supporting frame is provided with a containing groove extending in the vertical direction, and the adjusting piece is arranged in the containing groove. The adjusting piece is provided with a through hole and a first connecting hole; the through hole is used for accommodating a rotating shaft of the compression roller assembly; the first locking piece penetrates through the first connecting hole and extends out of the bottom of the adjusting piece to abut against the containing groove. The height position of the compression roller assembly can be adjusted by screwing the first locking piece, so that a preset height difference is kept between the upper surface of the coal flow and the preset reference surface, and the detection accuracy of the coal quality detector is improved.

Description

Technical Field

[0001] The present application relates to the technical field of coal quality testing sample preparation, and particularly relates to a control method for a coal flow conveying system and a coal flow shaping device. Background Art

[0002] At present, in the field of coal quality testing, more and more coal shipping stations and occasions with coal quality grading and testing requirements have started to use coal quality testing instruments. The coal quality testing instruments can generate test reports for coal quality testing, and cooperate with automated sampling mechanisms to complete the sampling and testing of the entire batch of coal at regular times, fixed points, and multiple times.

[0003] However, in the production and assembly process of the existing coal flow conveying system, there will be processing errors, assembly errors, etc. After assembly, there will be a large cumulative error, which cannot ensure the consistency of the height difference between the height of the upper surface of the shaped coal flow and the height required by the supporting coal quality detector, resulting in fluctuations and inaccuracies in the coal flow detection results output by the coal quality detector. Summary of the Invention

[0004] In view of the above technical problems, the present application provides a control method for a coal flow conveying system and a coal flow shaping device, which can ensure the consistency between the upper surface of the shaped coal flow and the height required by the coal quality detector, and thus improve the accuracy of the coal flow detection results.

[0005] In a first aspect, the present application provides a coal flow conveying system, which includes: a coal flow input part, a coal flow shaping device, a coal flow output part, and a conveyor belt. The conveyor belt sequentially conveys the coal flow from the coal flow input part to the coal flow shaping device and the coal flow output part.

[0006] The coal flow shaping device includes:

[0007] A pressure roller assembly, which is arranged above the conveyor belt;

[0008] A support frame, which has a receiving groove extending in the vertical direction;

[0009] An adjusting member, which is arranged in the receiving groove; the adjusting member has a through hole and a first connection hole, and the through hole is used to accommodate the rotating shaft of the pressure roller assembly;

[0010] A first locking member, which passes through the first connection hole and extends out of the bottom of the adjusting member to abut against the receiving groove;

[0011] Among them, the coal flow conveying system has a preset reference plane; by screwing the first locking member, the height of the first locking member protruding from the bottom of the adjusting member can be adjusted, so that the pressure roller assembly has different height positions, and further enables the upper surface of the coal flow output by the coal flow shaping device to maintain a preset height difference from the preset reference plane.

[0012] In the coal flow conveying system provided by the present application, by adjusting the height between the part of the first locking member protruding from the end of the adjusting member and the receiving groove of the support frame, the height position of the adjusting member is further adjusted, and the adjusting member can be limited to different height positions as required. The height of the pressure roller assembly can be adjusted synchronously with the adjusting member, so that the upper surface of the shaped coal flow matches the preset height of the coal quality detector, and the height difference is kept stable, thus improving the detection accuracy of the coal quality detector.

[0013] As an optional implementation manner, the preset reference plane is flush with the bottom surface of the receiving groove.

[0014] With such a setting, the accuracy of the position of the preset reference plane can be ensured, and the cumulative error in the production and assembly processes can be reduced.

[0015] As an optional implementation manner, the coal flow shaping device further includes a second locking member, and the adjusting member has a second connection hole; the receiving groove has a third connection hole aligned with the second connection hole;

[0016] Among them, the second locking member passes through the second connection hole and is locked with the third connection hole, so that the pressure roller assembly is limited to a specified height position.

[0017] With such a setting, the height of the adjusting member can be limited, ensuring that the adjustment can be stabilized at the preset height after adjustment.

[0018] As an optional implementation manner, the adjusting member includes a horizontal portion and a protruding portion, the through hole is partially provided in the horizontal portion and partially provided in the protruding portion, and both the first connection hole and the second connection hole extend along the vertical direction of the adjusting member.

[0019] With such a setting, the stability of the adjusting member supporting the pressure roller assembly through the through hole can be improved.

[0020] As an optional implementation manner, the receiving groove has a stepped portion, and the stepped portion has an upper end surface and a lower end surface; the end of the first locking member abuts against the upper end surface, and the end of the second locking member is locked with the upper end surface; the vertical projection of the through hole partially covers the lower end surface.

[0021] With such a setting, the adjusting member can be positioned and limited. Under the adjustment of the first locking member, the adjusting member moves vertically to avoid lateral displacement or shaking.

[0022] As an alternative embodiment, both the pressure roller assembly and the adjusting member are plural. The support frame is provided with a plurality of receiving grooves, and the plurality of adjusting members are respectively arranged in the plurality of receiving grooves. The plurality of pressure roller assemblies respectively cooperate with the plurality of adjusting members, so that different pressure roller assemblies can be adjusted to the same height through the individually adjustable adjusting members.

[0023] With such a setting, the plurality of pressure roller assemblies can roll-press the coal flow in sequence, and the corresponding adjusting members ensure the consistency of the heights of the plurality of pressure roller assemblies, so that the height of the upper surface of the coal flow can be accurately controlled.

[0024] As an alternative embodiment, the coal flow shaping device further includes a driving assembly. The driving assembly includes a driving unit, a flexible transmission member, and a plurality of transmission wheels. The driving unit is connected to the adjusting member, and the plurality of transmission wheels are respectively coaxially connected to the plurality of pressure roller assemblies. The flexible transmission member is wound around the plurality of transmission wheels. The output end of the driving unit is coaxially connected to one of the plurality of pressure roller assemblies to drive the plurality of pressure roller assemblies to rotate synchronously.

[0025] With such a setting, the process of the plurality of pressure roller assemblies rotating and rolling can be kept stable and consistent.

[0026] As an alternative embodiment, it further includes a mounting plate. The support frame is mounted on the mounting plate. The extending direction of the mounting plate is the same as the coal flow conveying direction of the conveyor belt. The mounting plate is also used to support the coal quality detector. Wherein, the upper surface of the mounting plate for supporting the coal quality detector is defined as the preset reference surface.

[0027] With such a setting, the value of the height difference between the preset reference surface and the upper surface of the coal flow can be accurately controlled.

[0028] As an alternative embodiment, there are two support frames, and the two support frames are respectively arranged on both sides in the width direction of the conveyor belt. The axial direction of the pressure roller assembly extends along the width direction of the conveyor belt, and both ends of the rotating shaft of the pressure roller assembly are rotatably connected to the through holes of the two support frames.

[0029] Wherein, the two support frames are respectively provided with the adjusting members, and the two adjusting members are respectively used to adjust the heights of both ends of the pressure roller assembly so that the heights of both ends of the pressure roller assembly are kept consistent.

[0030] With such a setting, the levelness of the pressure roller assembly relative to the surface of the conveyor belt can be improved, ensuring that the upper surface of the coal flow after the pressure roller remains flat.

[0031] In a second aspect, the present application provides a control method for a coal flow shaping device, where the coal flow shaping device includes:

[0032] A support frame provided with a receiving groove;

[0033] An adjusting member provided with a first connection hole and a second connection hole;

[0034] A pressure roller assembly;

[0035] A first locking member and a second locking member;

[0036] Wherein, the receiving groove has a third connection hole aligned with the second connection hole, and the adjusting member is configured such that the first locking member passes through the first connection hole and the end portion extending out of the first connection hole abuts against the receiving groove, and the second locking member passes through the second connection hole and the end portion extending out of the second connection hole is locked with the third connection hole.

[0037] The method includes:

[0038] In response to an instruction to raise the pressure roller assembly, first, the second locking member is screwed upward so that the adjusting member can move upward relative to the receiving groove to a first height position; at the first height position, then the first locking member is screwed downward so that the end face of the first locking member abuts against the receiving groove again;

[0039] In response to an instruction to lower the pressure roller assembly, first, the first locking member is screwed upward so that the end face of the first locking member disengages from the receiving groove; then the second locking member is screwed downward so that the first locking member abuts against the receiving groove again, thereby causing the adjusting member to move downward to a second height position.

[0040] The present application provides a control method for a coal flow conveying system and a coal flow shaping device. The coal flow conveying system includes a coal flow input section, a coal flow shaping device, a coal flow output section, and a conveyor belt. The conveyor belt sequentially conveys the coal flow from the coal flow input section to the coal flow shaping device and the coal flow output section. The coal flow shaping device includes a pressure roller assembly, a support frame, an adjusting member, and a first locking member. The pressure roller assembly is disposed above the conveyor belt. The support frame has a receiving groove extending in the vertical direction, and the adjusting member is disposed in the receiving groove. The adjusting member has a through hole and a first connection hole. The through hole is used to receive the rotating shaft of the pressure roller assembly. The first locking member passes through the first connection hole and extends out of the bottom of the adjusting member to abut against the receiving groove. By screwing the first locking member, the height of the first locking member extending out of the bottom of the adjusting member can be adjusted, so that the pressure roller assembly has different height positions, and further, the upper surface of the coal flow output from the coal flow shaping device maintains a preset height difference from a preset reference plane, maintaining a stable height difference and improving the detection accuracy of the coal quality detector.

[0041] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions, the other technical problems that can be solved by the coal flow conveying system and the control method of the coal flow shaping device provided by the present application, the other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0043] Figure 1 It is a schematic structural diagram of the coal flow conveying system provided by the embodiment of the present application;

[0044] Figure 2 It is a partial schematic diagram of the coal flow conveying system provided by the embodiment of the present application;

[0045] Figure 3 It is a side sectional view of the coal flow conveying system provided by the embodiment of the present application Figure 1 ;

[0046] Figure 4 It is a side sectional view of the coal flow conveying system provided by the embodiment of the present application Figure 2 ;

[0047] Figure 5Schematic structural diagram of the coal flow shaping device in the coal flow conveying system provided by the embodiment of the present application;

[0048] Figure 6 Explosion diagram of the pressure roller assembly in the coal flow conveying system provided by the embodiment of the present application;

[0049] Figure 7 Schematic structural diagram of the adjusting part in the coal flow conveying system provided by the embodiment of the present application;

[0050] Figure 8 Schematic structural diagram of the bearing on the pressure roller assembly in the coal flow conveying system provided by the embodiment of the present application;

[0051] Figure 9 Schematic structural diagram of the pressure roller mounting base plate in the coal flow conveying system provided by the embodiment of the present application;

[0052] Figure 10 Position adjustment schematic diagram of the adjusting part in the coal flow conveying system provided by the embodiment of the present application Figure 1 ;

[0053] Figure 11 Position adjustment schematic diagram of the adjusting part in the coal flow conveying system provided by the embodiment of the present application Figure 2 ;

[0054] Figure 12 Explosion diagram of the coal flow shaping device in the coal flow conveying system provided by the embodiment of the present application;

[0055] Figure 13 Schematic structural diagram of the mounting plate in the coal flow conveying system provided by the embodiment of the present application;

[0056] Figure 14 Schematic diagram of the setting of the bottom support plate in the coal flow conveying system provided by the embodiment of the present application;

[0057] Figure 15 Explosion diagram of the bottom support plate and the mounting plate in the coal flow conveying system provided by the embodiment of the present application.

[0058] Explanation of reference numerals:

[0059] 1 - Coal flow input part;

[0060] 2 - Coal flow shaping device; 21 - Preset reference plane; 22 - Upper surface of coal flow;

[0061] 3 - Coal quality detector;

[0062] 4 - Mounting plate; 41 - Shaping mounting surface; 42 - Support plate mounting surface;

[0063] 5 - Instrument bottom support plate; 51 - Upper surface of instrument bottom support plate;

[0064] 6 - Coal flow output section;

[0065] 7 - Press roller bottom support plate; 71 - Upper surface of the press roller bottom support plate;

[0066] 8 - Driving unit;

[0067] 9 - Press roller mounting bottom plate; 91 - Upper surface of the press roller mounting bottom plate; 92 - Third connection hole;

[0068] 10 - Side support block;

[0069] 11 - Primary press roller assembly;

[0070] 12 - Secondary press roller assembly; 121 - First shaft shoulder surface; 122 - First shaft circular surface; 123 - Second shaft circular surface; 124 - Third shaft circular surface; 125 - Second shaft shoulder surface; 126 - Fourth shaft circular surface;

[0071] 13 - Central support block;

[0072] 14 - Adjusting part; 141 - Hole end face; 142 - Inner hole surface; 143 - Protrusion; 144 - Horizontal part; 145 - First connection hole; 146 - Second connection hole; 147 - Locking threaded hole; 148 - Through hole;

[0073] 15 - First locking part;

[0074] 16 - Second locking part;

[0075] 17, 23 - Bearing; 171 - Outer circular surface; 172 - End side surface;

[0076] 18 - Flexible transmission part;

[0077] 19 - Bush;

[0078] 20 - Transmission wheel;

[0079] Δh - Relative height of the upper surface of the coal flow. Detailed implementation manners

[0080] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts fall within the scope of protection of this application.

[0081] The terms "first", "second", "third", "fourth", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances. For example, without departing from the scope of this text, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0082] Depending on the context, the word "if" as used herein can be interpreted as "when" or "while" or "in response to determining".

[0083] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to also include the plural forms, unless the context indicates otherwise.

[0084] It should be further understood that the terms "comprising", "including" indicate the presence of features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups.

[0085] The term "or" and "and / or" used herein are interpreted inclusively, or mean any one or any combination. Thus, "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B and C". An exception to this definition occurs only when the combination of elements, functions, steps or operations are mutually exclusive in some way.

[0086] For the sake of easy understanding, the following first explains the key terms in the technical field related to this application.

[0087] Coal quality detection: Detect the moisture, ash, volatile matter, etc. of coal samples, determine the calorific value, and ensure that the coal meets the production requirements (such as power plants, steel mills), trade pricing basis and environmental protection standards (such as sulfur emission limits).

[0088] Coal flow sample preparation: Shape and output the coal samples to be detected to ensure that they meet the detection requirements of coal quality detection equipment.

[0089] Relative height of the upper surface of the coal flow: After the coal flow is shaped, the relative height from the upper surface of the coal flow to the instrument installation reference surface. The coal quality detection instrument requires the relative height of the upper surface of the coal flow to be kept as close as possible to a preset fixed value. The closer the height of the upper surface of the coal flow is to the preset fixed value, the higher the accuracy of the detection result, and vice versa, the greater the deviation of the result.

[0090] At present, in more and more occasions with the need for coal quality grading and detection, such as coal shipping stations, coal quality detection instruments are being introduced for automated and rapid coal quality detection. In cooperation with an automated sampling mechanism, the coal quality detection instrument can quickly generate a test report for coal quality detection, and complete the sampling and detection of the entire batch of coal regularly, at fixed points, and multiple times. However, during the production and assembly process of existing coal conveying equipment, there will be processing errors, assembly errors, etc. After assembly, there will be a large cumulative error, which cannot ensure the consistency of the relative height of the upper surface of the coal flow, resulting in a large deviation between the detection results output by the coal quality detection instrument and the standard value, and unable to ensure the accuracy and stability of the detection results.

[0091] To solve the above technical problems, the present application provides a control method for a coal flow conveying system and a coal flow shaping device. Through the structural design of the shaping device in the coal flow conveying system, the height of the pressure roller structure used in the shaping device can be accurately and quickly adjusted to ensure that the relative height value of the upper surface of the coal flow output by shaping is accurate and stable, and as close as possible to the preset fixed value, thereby ensuring the accuracy and stability of the structure of the coal quality detection instrument for detecting the coal flow.

[0092] The following is an example description of the application scenario of the coal flow conveying system provided in the embodiments of the present application.

[0093] The coal flow conveying system provided in the embodiments of the present application can be used in any occasion during the process of coal mining, shipping, and use. As long as there is a need for coal quality detection, coal quality grading detection, etc., the coal flow conveying system provided in the present application can be adopted. The embodiments of the present application do not make specific limitations on this.

[0094] As Figures 1 to 4 shown, the present application provides a coal flow conveying system, which includes: a coal flow input part 1, a coal flow shaping device 2, a coal flow output part 6, and a conveyor belt. The conveyor belt conveys the coal flow from the coal flow input part 1 to the coal flow shaping device 2 and the coal flow output part 6 in sequence.

[0095] When the coal flow passes through the coal flow shaping device 2, the coal flow shaping device 2 can roll and shape the coal flow, playing the role of coal flow sample preparation. Among them, the coal flow shaping device 2 includes a pressure roller assembly, a support frame, and an adjustment part 14. The pressure roller assembly is arranged above the conveyor belt. When the conveyor belt conveys the coal flow, the coal flow can pass through between the pressure roller assembly and the conveyor belt, and the pressure roller assembly rolls the coal flow, thereby forming a relatively flat upper surface of the coal flow.

[0096] It can be understood that the support frame has a receiving groove extending in the vertical direction. The adjusting member 14 is arranged in the receiving groove. The adjusting member 14 has a through hole 148 for receiving the rotating shaft of the pressure roller assembly, so that the adjusting member 14 plays a supporting role for the pressure roller assembly. In the embodiment of the present application, the height of the adjusting member 14 can be adjusted by adjusting the position of the adjusting member 14 in the receiving groove, and then the height of the pressure roller assembly can be adjusted.

[0097] Please refer to Figures 1 to 5 , in some embodiments, the coal flow shaping device 2 further includes a first locking member 15. The adjusting member 14 has a first connection hole 145. The first locking member 15 passes through the first connection hole 145 and extends out of the bottom of the adjusting member 14 to abut against the receiving groove. The first locking member 15 is used to adjust the height position of the adjusting member 14 in the receiving groove.

[0098] Among them, the coal flow conveying system has a preset reference plane 21. By screwing the first locking member 15, the height of the first locking member 15 extending out of the bottom of the adjusting member 14 can be adjusted, so that the pressure roller assembly has different height positions, and further the upper surface 22 of the coal flow output from the coal flow shaping device 2 is kept at a preset height difference from the preset reference plane 21.

[0099] It should be noted that the preset reference plane 21 of the coal flow conveying system can be used as the installation reference plane of the coal quality detector 3, that is, the height difference between the upper surface 22 of the coal flow and the preset reference plane 21 is the relative height of the upper surface of the coal flow. When the first locking member 15 is screwed upward, the height of the first locking member 15 extending out of the bottom of the adjusting member 14 becomes smaller, the position of the adjusting member 14 in the receiving groove drops, the position of the pressure roller assembly drops, and the position of the upper surface of the coal flow shaped by the pressure roller assembly drops. Further, the height difference between the upper surface 22 of the coal flow and the preset reference plane 21 increases, and the relative height of the upper surface of the coal flow increases. Correspondingly, when the first locking member 15 is screwed downward, the height of the first locking member 15 extending out of the bottom of the adjusting member 14 becomes larger, the position of the adjusting member 14 in the receiving groove rises, the position of the pressure roller assembly rises, and the position of the upper surface of the coal flow shaped by the pressure roller assembly rises. Further, the height difference between the upper surface 22 of the coal flow and the preset reference plane 21 decreases, and the relative height of the upper surface of the coal flow decreases.

[0100] In the coal flow conveying system provided by the present application, by adjusting the height between the part of the first locking member 15 extending out of the end of the adjusting member 14 and the receiving groove of the support frame, the height position of the adjusting member 14 is further adjusted. According to needs, the adjusting member 14 can be limited at different height positions, and the height of the pressure roller assembly can be adjusted synchronously with the adjusting member 14. Further, the relative height between the upper surface 22 of the coal flow and the preset reference plane 21 is kept stable, and the preset height of the upper surface 22 of the shaped coal flow matches the installation reference plane of the coal quality detector 3, so that the detection accuracy and stability of the coal quality detector 3 can be improved.

[0101] In addition, the coal flow conveying system provided by the embodiments of the present application can be equipped with a coal quality detector 3, and the installation reference plane of the coal quality detector 3 can be equivalent to the preset reference plane 21. For example, the coal quality detector 3 can be installed above the coal flow output part 6. When the coal flow enters the coal flow output part 6 after being output from the coal flow shaping device 2, the coal flow will pass under the coal quality detector 3, so that the coal quality detector 3 can detect and analyze the coal flow.

[0102] Please refer to Figures 6 to 12 , and in combination with Figures 1 to 5 , in some embodiments, the preset reference plane 21 is flush with the bottom surface of the receiving groove. In this way, the accuracy of the position of the preset reference plane 21 can be ensured, and the cumulative error in the production and assembly processes can be reduced.

[0103] It can be understood that both the preset reference plane 21 and the bottom surface of the receiving groove can be horizontal planes. The conveyor belt conveys the coal flow in the horizontal direction, and the bottom surface of the receiving groove is used to define the preset reference plane 21, making it easier to accurately adjust and determine the relative height of the upper surface of the coal flow.

[0104] Exemplarily, the upper surface of the coal flow can be approximately a plane, and the relative height difference between the upper surface 22 of the coal flow and the preset reference plane 21 can be Δh, that is, the relative height of the upper surface of the coal flow is Δh. When in the preset coal quality detection scenario, the height difference between the installation reference plane of the coal quality detector 3 and the upper surface 22 of the coal flow is H, the height position of the adjustment member 14 can be adjusted so that the value of Δh is equal to or as close as possible to the value of H. In this way, the closer the actual relative height Δh of the upper surface of the coal flow is to H, the more accurate the detection result of the coal quality detector 3 will be.

[0105] Please refer to Figures 13 to 15 , in some embodiments, an instrument bottom support plate 5 and a pressure roller bottom support plate 7 are provided below the conveyor belt. Among them, the instrument bottom support plate 5 is opposite to the position of the coal quality detector 3, and the position of the pressure roller bottom support plate 7 is opposite to the position of the coal flow shaping device 2. Since the conveyor belt is a flexible structure, the instrument bottom support plate 5 and the pressure roller bottom support plate 7 play a supporting role for the conveyor belt, and the stability of the height position of the upper surface 22 of the coal flow can be ensured when the pressure roller assembly rolls the coal flow.

[0106] It can be understood that an installation plate 4 is provided on the side of the conveyor belt, and both the instrument bottom support plate 5 and the pressure roller bottom support plate 7 can be installed on the upper installation plate 4. The installation surfaces of the instrument bottom support plate 5 and the pressure roller bottom support plate 7 on the installation plate 4 are the same surface. The belt is lifted by the instrument bottom support plate 5 and the pressure roller bottom support plate 7, and the belt runs on the upper surfaces of the instrument bottom support plate 5 and the pressure roller bottom support plate 7. In this way, the horizontal height of the upper surface of the belt from the pressure roller to below the instrument is ensured to be consistent, and the height relative to the installation reference plane of the coal quality detector 3 can also be relatively fixed.

[0107] Exemplarily, the instrument base plate 5 and the pressure roller base plate 7 can be a complete flat plate structure, or can be multiple flat plate structures provided separately. For example, two instrument base plates 5 and one pressure roller base plate 7 can be provided. Specifically, it can be determined according to the covering length range of the coal quality detector 3 and the coal flow shaping device 2 in the conveyor belt conveying direction. When the covered length is longer, multiple flat plate structures can be set to maintain good support stability.

[0108] Exemplarily, the installation reference surface of the coal quality detector 3 can be set on the upper surface of the mounting plate 4. Please refer to Figure 13 , and the upper surface of the mounting plate 4 can also be provided with a shaping installation surface 41 for installing the coal flow shaping device 2. The lower surface of the mounting plate 4 can be formed with a base plate installation surface 42 for installing the instrument base plate 5 and the pressure roller base plate 7. The installation reference surface can be equivalent to the preset reference surface 21.

[0109] It should be noted that the installation reference surface, the shaping installation surface 41, and the base plate installation surface 42 can all ensure their relative heights through machining accuracy. The upper surface 51 of the instrument base plate and the upper surface 71 of the pressure roller base plate can be respectively fixed on the base plate installation surface 42 of the mounting plate 4 by bolts. The upper surface 51 of the instrument base plate and the upper surface 71 of the pressure roller base plate are both in contact with the inner side of the conveyor belt, lifting the conveyor belt to ensure that the upper surface of the conveyor belt is at the same height when passing through the coal flow shaping device 2 and the coal quality detector 3.

[0110] In some embodiments, the coal flow shaping device 2 can further include a second locking member 16, and the adjusting member 14 has a second connection hole 146, and the receiving groove has a third connection hole 92 aligned with the second connection hole 146.

[0111] Wherein, the second locking member 16 passes through the second connection hole 146 and is locked with the third connection hole 92, so that the pressure roller assembly is limited to a specified height position, thereby the height of the adjusting member 14 can be limited, ensuring that the adjustment can be stable at this position after being adjusted to the preset height.

[0112] The support frame can include support blocks and a pressure roller mounting bottom plate 9. Multiple support blocks are arranged at intervals on the pressure roller mounting bottom plate 9, and a receiving groove is formed between adjacent support blocks. Exemplarily, the support blocks and the pressure roller mounting bottom plate 9 can be sequentially penetrated and installed on the shaping installation surface 41 of the mounting plate 4 by bolts.

[0113] It can be understood that both the first locking member 15 and the second locking member 16 can be threaded structures. The second connection hole 146 can be a through hole penetrating the adjusting member 14, and the third connection hole 92 can be a threaded hole. The adjusting member 14 is arranged in the receiving groove. When the second locking member 16 is not fully locked, the position of the adjusting member 14 relative to the roller mounting base plate 9 can move up and down along the second connection hole 146. The first connection hole 145 can be a threaded hole. When the first locking member 15 is tightened through the first connection hole 145, the bottom end will abut against the upper surface 91 of the roller mounting base plate, and the adjusting member 14 will be jacked up. When both the first locking member 15 and the second locking member 16 are stressed, the height position of the adjusting member 14 will be limited and fixed, making it unable to move.

[0114] It should be noted that the coal flow conveying system provided by the embodiment of the present application can adjust the height position of the adjusting member 14 by tightening and loosening the first locking member 15 and the second locking member 16, and then adjust the height position of the roller assembly to adjust the height of the upper surface 22 of the coal flow.

[0115] In some embodiments, the adjusting member 14 can include a horizontal portion 144 and a protruding portion 143. The through hole 148 is partially arranged in the horizontal portion 144 and partially arranged in the protruding portion 143. The first connection hole 145 and the second connection hole 146 both extend along the vertical direction of the adjusting member 14, so as to improve the stability of the adjusting member 14 supporting the roller assembly through the through hole 148.

[0116] It can be understood that the protruding portion 143 can be connected below the horizontal portion 144. When the adjusting member 14 cooperates with the receiving groove, the protruding portion 143 can cooperate with the groove on the roller mounting base plate 9, thereby reducing the thickness of the roller mounting base plate 9 at the position where the adjusting member 14 is located, making the height range of the up and down adjustment of the adjusting member 14 larger. When adjusting the height position of the roller assembly, the roller assembly is closer to the upper surface of the conveyor belt, having a better coal flow shaping effect.

[0117] In some embodiments, the receiving groove has a stepped portion, and the stepped portion has an upper end surface and a lower end surface. The end of the first locking member 15 abuts against the upper end surface, and the end of the second locking member 16 is locked with the upper end surface. The vertical projection of the through hole 148 partially covers the lower end surface.

[0118] It can be understood that the stepped portion can form a groove structure on the upper surface of the roller mounting base plate 9, so as to position and limit the adjusting member 14. Under the adjustment of the first locking member 15, the adjusting member 14 moves and adjusts vertically, avoiding lateral displacement or shaking.

[0119] In some embodiments, both the pressing roller assemblies and the adjusting members 14 are multiple. The support frame is provided with a plurality of receiving grooves, and the multiple adjusting members 14 are respectively arranged in the multiple receiving grooves. The multiple pressing roller assemblies are respectively matched with the multiple adjusting members 14, so that different pressing roller assemblies can be adjusted to the same height through the independently adjustable adjusting members 14.

[0120] Among them, the multiple pressing roller assemblies can sequentially roll-press the coal flow, having a better coal flow shaping effect, and the corresponding adjusting members 14 ensure the height consistency of the multiple pressing roller assemblies, so that the height of the upper surface of the coal flow can be accurately controlled.

[0121] Taking two pressing roller assemblies as an example, it may include a primary pressing roller assembly 11 and a secondary pressing roller assembly 12. The support block includes two side support blocks 10 and a middle support block 13. An accommodating groove is formed between each side support block 10 and the middle support block 13 respectively, and the two accommodating grooves are respectively used to accommodate the adjusting members 14 for adjusting the primary pressing roller assembly 11 and the secondary pressing roller assembly 12.

[0122] Please refer to Figures 5 to 12 , as an alternative embodiment, the coal flow shaping device 2 further includes a driving assembly. The driving assembly includes a driving unit 8 and a transmission mechanism. The driving motor provides power, and the transmission mechanism transmits the power to make the primary pressing roller assembly 11 and the secondary pressing roller assembly 12 rotate synchronously. The coal flow is conveyed by the conveyor belt and sequentially passes through the primary pressing roller assembly 11 and the secondary pressing roller assembly 12 for two compression shaping operations.

[0123] Among them, the driving unit 8 can be a driving motor. The transmission mechanism includes a flexible transmission member 18 and a plurality of transmission wheels 20. The driving unit 8 is connected to the adjusting member 14, and the plurality of transmission wheels 20 are respectively coaxially connected to the plurality of pressing roller assemblies. The flexible transmission member 18 is wound around the plurality of transmission wheels 20. The output end of the driving unit 8 is coaxially connected to one of the plurality of pressing roller assemblies to drive the plurality of pressing roller assemblies to rotate synchronously. In this way, the process of the plurality of pressing roller assemblies rotating and rolling can be kept stable and consistent. When the height of the adjusting member 14 is adjusted, the entire driving assembly moves along with the adjusting member.

[0124] Exemplarily, one end of the primary pressing roller assembly 11 and the secondary pressing roller assembly 12 can be respectively coaxially connected to a transmission wheel 20. The transmission wheel 20 can be a sprocket, and the flexible transmission member 18 can be a chain. The flexible transmission member 18 is wound around the two transmission wheels 20. The driving unit 8 can drive the secondary pressing roller assembly 12 to rotate, so as to drive the primary pressing roller assembly 11 to rotate synchronously through the transmission mechanism.

[0125] In some embodiments, the coal flow conveying system further includes a mounting plate 4, on which the support frame is mounted. The extending direction of the mounting plate 4 is the same as the coal flow conveying direction of the conveyor belt, and the mounting plate 4 is also used to support the coal quality detector 3. Wherein, the upper surface of the mounting plate 4 for supporting the coal quality detector 3 is defined as a preset reference surface 21, so that the value of the height difference between the preset reference surface 21 and the upper surface 22 of the coal flow can be accurately controlled.

[0126] Exemplarily, there may be two support frames, which are respectively arranged on both sides in the width direction of the conveyor belt. The axial direction of the pressure roller assembly extends along the width direction of the conveyor belt, and both ends of the rotating shaft of the pressure roller assembly are respectively rotatably connected to the through holes 148 of the two support frames.

[0127] Wherein, the two support frames are respectively provided with adjusting members 14, and the two adjusting members 14 are respectively used to adjust the heights of both ends of the pressure roller assembly, so that the heights of both ends of the pressure roller assembly are kept consistent, improving the levelness of the pressure roller assembly relative to the surface of the conveyor belt, keeping horizontal relative to the surface of the conveyor belt, and ensuring that the upper surface 22 of the coal flow after the pressure roller is flat.

[0128] In some embodiments, one end of the pressure roller assembly away from the drive unit 8 is installed with a bearing 23 limited by a second shaft shoulder surface 125 and a fourth shaft circular surface 126, and the transmission wheel 20 is installed with a limit by the cooperation of a first shaft shoulder surface 121 and a first shaft circular surface 122; the inner circular surface of the shaft sleeve 19 is installed in cooperation with the second shaft circular surface 123, and the transmission wheel 20 is fixed by being tightened. The transmission wheel 20 is provided with a locking structure to fix it on the rotating shaft of the pressure roller assembly. The bearing 17 is installed in cooperation with the second shaft circular surface 123, penetrates into the shaft after the shaft sleeve 19, and abuts against the side surface of the shaft sleeve 19. The drive unit 8 is installed in cooperation with the third shaft circular surface 124, and transmits power through the keyway structure on the third shaft circular surface 124.

[0129] Wherein, the outer circular surface 171 of the bearing 17 is an outer ring limiting surface, and the end side surface 172 is an outer ring limiting end surface. The hole end surface 141 of the through hole 148 cooperates with the end side surface 172 of the bearing 17 to limit the axial direction of the bearing, and the inner hole surface 142 of the through hole 148 cooperates with the outer circular surface 171 of the bearing 17 to limit the radial displacement of the bearing. The adjusting member 14 is provided with a locking threaded hole 147, and a locking set screw can be installed to fix the position of the bearing 17. The bearings 17 and 23 on the left and right sides respectively limit the axial and radial directions of both ends of the pressure roller assembly, ensuring the stability of its rotation process.

[0130] It should be noted that different pressure roller assemblies can be arranged in parallel and adopt the same or similar structures as above, which will not be elaborated here.

[0131] The embodiment of the present application provides a control method for a coal flow shaping device 2. Please refer to Figures 1 to 15, wherein, the coal flow shaping device 2 includes: a support frame provided with a receiving groove, an adjusting member 14 provided with a first connection hole 145 and a second connection hole 146, a pressure roller assembly, a first locking member 15 and a second locking member 16.

[0132] Wherein, the receiving groove has a third connection hole 92 aligned with the second connection hole 146, and the adjusting member 14 is configured such that the first locking member 15 passes through the first connection hole 145 and the end portion extending out of the first connection hole 145 abuts against the receiving groove, and the second locking member 16 passes through the second connection hole 146 and the end portion extending out of the second connection hole 146 is locked with the third connection hole 92.

[0133] The control method of the coal flow shaping device 2 includes:

[0134] S100. In response to the instruction to raise the pressure roller assembly, first, the second locking member 16 is screwed upward so that the adjusting member can move upward relative to the receiving groove to a first height position; at the first height position, then the first locking member is screwed downward so that the end face of the first locking member abuts against the receiving groove again.

[0135] It can be understood that when the second locking member 16 is screwed upward, the limit above the adjusting member 14 is cancelled, and the adjusting member 14 can move up and down along the second connection hole 146 to adjust the height position. During the upward adjustment to the first height position, the lower end face of the first locking member 15 is separated from the receiving groove. When reaching the first height position, the first locking member 15 is screwed downward, the height of the first locking member 15 extending out of the bottom of the adjusting member 14 becomes larger, and it abuts against the receiving groove again to form a lower limit. And at the first height position, the second locking member 16 also forms an upper limit for the adjusting member 14 again. In this way, the adjusting member 14 can be fixed at the first height position.

[0136] S200. In response to the instruction to lower the pressure roller assembly, first, the first locking member is screwed upward so that the end face of the first locking member is separated from the receiving groove; then the second locking member 16 is screwed downward so that the first locking member abuts against the receiving groove again, thereby causing the adjusting member to move downward to a second height position.

[0137] It can be understood that when the first locking member 15 is screwed upward, the height of the first locking member 15 extending out of the bottom of the adjusting member 14 decreases, and the bottom end face of the first locking member 15 is separated from the receiving groove. At this time, the lower limit of the adjusting member 14 is cancelled, and the adjusting member 14 can move downward along the second locking member 16. When moving to the second height position, the bottom end face of the first locking member 15 abuts against the receiving groove again to form a lower limit again. And by screwing the second locking member 16 downward, the upper limit of the adjusting member 14 can be maintained. In this way, the adjusting member 14 can be fixed at the second height position.

[0138] The coal flow transportation system provided in this embodiment may include a memory and at least one processor. Optionally, the system further includes a communication component. Among them, the memory, the processor, and the communication component are connected through a bus.

[0139] In the specific implementation process, at least one processor executes the computer-executable instructions stored in the memory, so that at least one processor executes the above-mentioned method.

[0140] For the specific implementation process of the processor, reference can be made to the above method embodiment, and its implementation principle and technical effect are similar, so details are not described here in this embodiment.

[0141] In the above embodiment, it should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the invention can be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0142] The memory may include a high-speed random access memory (RAM), and may also include a non-volatile memory (NVM), such as at least one disk memory.

[0143] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, the buses in the drawings of this application are not limited to only one bus or one type of bus.

[0144] This application also provides a computer program product, including a computer program, which implements the above-mentioned method when executed by a processor.

[0145] This application also provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the processor executes the computer-executable instructions, the above-mentioned method is implemented.

[0146] The above-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, a magnetic disk, or an optical disk. The readable storage medium can be any available medium accessible by a general-purpose or special-purpose computer.

[0147] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A coal flow conveying system, characterized in that, Comprising: A coal flow input section, a coal flow shaping device, a coal flow output section, and a conveyor belt. The conveyor belt sequentially conveys the coal flow from the coal flow input section to the coal flow shaping device and the coal flow output section; The coal flow shaping device includes: A pressure roller assembly disposed above the conveyor belt; A support frame having a receiving groove extending in the vertical direction; An adjusting member disposed in the receiving groove; the adjusting member has a through hole and a first connection hole, and the through hole is used to receive the rotating shaft of the pressure roller assembly; A first locking member passing through the first connection hole and extending out of the bottom of the adjusting member to abut against the receiving groove; Wherein, the coal flow conveying system has a preset reference plane; by screwing the first locking member, the height of the first locking member extending out of the bottom of the adjusting member can be adjusted, so that the pressure roller assembly has different height positions, and further making the upper surface of the coal flow output from the coal flow shaping device maintain a preset height difference from the preset reference plane.

2. The coal flow conveying system according to claim 1, wherein The preset reference plane is flush with the bottom surface of the receiving groove.

3. The coal flow conveying system according to claim 1, wherein The coal flow shaping device further includes a second locking member, and the adjusting member has a second connection hole; the receiving groove has a third connection hole aligned with the second connection hole; Wherein, the second locking member passes through the second connection hole and is locked with the third connection hole, so that the pressure roller assembly is limited to a specified height position.

4. The coal flow conveying system according to claim 3, characterized in that, The adjusting member includes a horizontal portion and a protruding portion. The through hole is partially disposed in the horizontal portion and partially disposed in the protruding portion. The first connection hole and the second connection hole both extend along the vertical direction of the adjusting member.

5. The coal flow conveying system according to claim 3, characterized in that, The receiving groove has a stepped portion with an upper end surface and a lower end surface; the end of the first locking member abuts against the upper end surface, and the end of the second locking member is locked with the upper end surface; the vertical projection of the through hole partially covers the lower end surface.

6. The coal flow conveying system according to any one of claims 1-5, characterized in that, Both the pressure roller assembly and the adjusting member are multiple. The support frame is provided with multiple receiving grooves. Multiple adjusting members are respectively disposed in multiple receiving grooves, and multiple pressure roller assemblies are respectively matched with multiple adjusting members, so that different pressure roller assemblies can be adjusted to the same height through the independently adjustable respective adjusting members.

7. The coal flow conveying system according to claim 6, wherein, The coal flow shaping device further includes a driving assembly, which includes a driving unit, a flexible transmission member, and multiple transmission wheels. The driving unit is connected to the adjusting member, and multiple transmission wheels are respectively coaxially connected to multiple pressure roller assemblies. The flexible transmission member is wound around multiple transmission wheels; the output end of the driving unit is coaxially connected to one of the multiple pressure roller assemblies to drive the multiple pressure roller assemblies to rotate synchronously.

8. The coal flow conveying system according to any one of claims 1-5, characterized in that, It further includes a mounting plate. The support frame is mounted on the mounting plate. The extending direction of the mounting plate is the same as the coal flow conveying direction of the conveyor belt. The mounting plate is also used to support a coal quality detector; wherein, the upper surface of the mounting plate for supporting the coal quality detector is defined as the preset reference plane.

9. The coal flow conveying system according to any one of claims 1-5, characterized in that, There are two support frames, and the two support frames are respectively arranged on both sides of the conveyor belt in the width direction; the axial direction of the pressure roller assembly extends along the width direction of the conveyor belt, and both ends of the rotating shaft of the pressure roller assembly are rotatably connected to the through holes of the two support frames; Wherein, the two support frames are respectively provided with the adjusting members, and the two adjusting members are respectively used to adjust the heights of both ends of the pressure roller assembly so that the heights of both ends of the pressure roller assembly are kept consistent.

10. A control method for a coal flow shaping device, the coal flow shaping device comprising: A support frame provided with a receiving groove; An adjusting member provided with a first connection hole and a second connection hole; A pressure roller assembly; A first locking member and a second locking member; Wherein, the receiving groove has a third connection hole aligned with the second connection hole, and the adjusting member is configured such that the first locking member passes through the first connection hole and the end portion extending out of the first connection hole abuts against the receiving groove, and the second locking member passes through the second connection hole and the end portion extending out of the second connection hole is locked with the third connection hole; The method includes: In response to a command to raise the pressure roller assembly, first, the second locking member is screwed upward so that the adjusting member can move upward relative to the receiving groove to a first height position; at the first height position, then the first locking member is screwed downward so that the end face of the first locking member abuts against the receiving groove again; In response to a command to lower the pressure roller assembly, first, the first locking member is screwed upward so that the end face of the first locking member is disengaged from the receiving groove; then the second locking member is screwed downward so that the first locking member abuts against the receiving groove again, thereby causing the adjusting member to move downward to a second height position.

Images