Screw type ship unloader blockage protection device

Abstract

The invention relates to the technical field of spiral ship unloaders, in particular to a spiral ship unloader blockage protection device which comprises a discharging mechanism, a spiral conveying pipe, a coal falling pipe arranged on the spiral conveying pipe, a feeding pipe arranged on the spiral conveying pipe and a square changing mechanism. Comprising a first bent pipe arranged on the coal dropping pipe and the feeding pipe, a monitoring pipe arranged on the first bent pipe, a second bent pipe arranged on the monitoring pipe, a square modification part arranged in the monitoring pipe, an end sealing part arranged on the square modification part and a gluing part arranged on the monitoring pipe. According to the blockage protection device for the spiral ship unloader, the blockage condition in the conveying pipe of the spiral ship unloader is directly reflected according to the flow comparison of the two ends of the discharging spiral conveying pipe, the problem of no alarm caused by partial coal accumulation blockage is solved, equipment damage caused by blockage is more comprehensively prevented, and safe and stable operation of the spiral ship unloader is protected.

Description

Technical Field

[0001] The invention relates to the technical field of screw ship unloaders, and in particular to a material blocking protection device for screw ship unloaders. Background Art

[0002] At present, due to the spiral installation method and the working mode of material extrusion and conveying of the spiral ship unloader conveying pipe, the traditional blockage protection switch cannot be installed, and problems such as coal accumulation and coal jamming in the conveying pipe cannot be warned in advance. Long-term coal blockage operation will cause excessive wear of the spiral mechanism, extrusion and burst of the conveying pipe, expand the scope of the accident, cause unnecessary equipment losses, and affect the safe and stable operation of the ship unloader. Summary of the invention

[0003] In view of the above problems existing in the material blocking protection device of the existing spiral ship unloader, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a material blocking protection device for a screw ship unloader, the object of which is to monitor the blockage situation in the conveying pipe of the screw ship unloader.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:

[0006] The unloading mechanism comprises a spiral conveying pipe, a coal dropping pipe arranged on the spiral conveying pipe, and a feeding pipe arranged on the spiral conveying pipe;

[0007] The square-changing mechanism comprises a first elbow disposed on the coal dropping pipe and the feed pipe, a monitoring pipe disposed on the first elbow, a second elbow disposed on the monitoring pipe, a square-changing portion disposed in the monitoring pipe, an end sealing portion disposed on the square-changing portion, a gluing portion disposed on the monitoring pipe, and a through-hole portion disposed on the square-changing portion; and,

[0008] The monitoring mechanism includes a shell portion arranged on the monitoring tube, a laser scanner arranged in the shell portion, a fixing portion arranged on the shell portion, a compensation portion arranged on the fixing portion, a torsion portion arranged on the shell portion, and a limiting portion arranged on the shell portion.

[0009] As a preferred solution of the spiral ship unloader blockage protection device of the present invention, the square modification part includes a square modification fixing frame arranged in the monitoring tube, a square tube arranged on the square modification fixing frame, and a foam cavity arranged between the square tube and the monitoring tube.

[0010] As a preferred solution of the spiral ship unloader material blocking protection device of the present invention, the end sealing part includes end covers arranged at both ends of the square tube, square holes arranged on the end covers and adapted to the square tube, and a slope surface arranged on the end covers.

[0011] As a preferred solution of the material blocking protection device of the spiral ship unloader of the present invention, the gluing part includes a gluing groove arranged on the monitoring tube, and a fixing plate arranged on the monitoring tube and matched with the gluing groove.

[0012] As a preferred solution of the material blocking protection device for the spiral ship unloader of the present invention, the through hole portion includes a monitoring hole arranged on the square fixing frame and a blocking piece arranged in the monitoring hole.

[0013] As a preferred solution of the material blocking protection device for the spiral ship unloader of the present invention, the shell portion includes a mounting shell arranged on the monitoring tube and a mounting groove arranged on the mounting shell.

[0014] As a preferred solution of the spiral ship unloader blockage protection device of the present invention, the laser scanner includes a scanner body arranged in the mounting shell, a scanner probe arranged on the scanner body and adapted to the monitoring hole, and a scanner data line arranged on the scanner body.

[0015] As a preferred solution of the material blocking protection device for the spiral ship unloader of the present invention, the fixing portion comprises an arc-shaped plate arranged on the mounting shell and an arc surface arranged on the arc-shaped plate.

[0016] As a preferred solution of the material blocking protection device of the spiral ship unloader of the present invention, the compensation part includes a threaded rod arranged on the arc plate and an extrusion head arranged on the threaded rod.

[0017] As a preferred solution of the material blocking protection device of the spiral ship unloader of the present invention, the torsion part comprises a torsion shaft arranged on the mounting shell, a torsion plate arranged on the torsion shaft, a torsion spring arranged on the torsion shaft, and an extrusion roller arranged on the torsion plate, and the arc center of the arc surface and the axis center of the torsion shaft are on the same axis;

[0018] The limiting part includes a limiting roller arranged in the mounting shell, and a limiting head arranged on the monitoring tube and matched with the scanner body.

[0019] The beneficial effects of the present invention are as follows: by comparing the flow rates at both ends of the discharge spiral conveying pipe, the blockage situation in the conveying pipe of the spiral ship unloader can be directly reflected, the problem of no alarm caused by partial coal accumulation and blockage can be reduced, equipment damage caused by blockage can be more comprehensively prevented, and the safe and stable operation of the spiral ship unloader can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the material blocking protection device of the spiral ship unloader of the present invention.

[0022] Figure 2 It is a structural schematic diagram of a monitoring pipe of a material blocking protection device of a spiral ship unloader of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the modified part of the material blocking protection device of the spiral ship unloader of the present invention.

[0024] Figure 4 It is a schematic structural diagram of the end sealing portion of the material blocking protection device of the spiral ship unloader of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the laser scanner of the material blocking protection device of the spiral ship unloader of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the fixing part of the material blocking protection device of the spiral ship unloader of the present invention.

[0027] Figure 7 The material blocking protection device of the spiral ship unloader of the present invention Figure 2 A local enlarged schematic diagram of point A in the middle.

[0028] Figure 8 It is a schematic diagram of the scanning range of the material blocking protection device of the spiral ship unloader of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1

[0034] Reference Figures 1 to 7 , which is the first embodiment of the present invention, provides a material blocking protection device for a spiral ship unloader, the device comprising:

[0035] The unloading mechanism 100 includes a spiral conveying pipe 101, a coal dropping pipe 102 arranged on the spiral conveying pipe 101, and a feeding pipe 103 arranged on the spiral conveying pipe 101;

[0036] The square-changing mechanism 200 includes a first elbow 201 disposed on the coal dropping pipe 102 and the feeding pipe 103, a monitoring pipe 202 disposed on the first elbow 201, a second elbow 203 disposed on the monitoring pipe 202, a square-changing portion 204 disposed in the monitoring pipe 202, an end sealing portion 205 disposed on the square-changing portion 204, a gluing portion 206 disposed on the monitoring pipe 202, and a through hole portion 207 disposed on the square-changing portion 204; and,

[0037] The monitoring mechanism 300 includes a shell portion 301 arranged on the monitoring tube 202, a laser scanner 302 arranged in the shell portion 301, a fixing portion 303 arranged on the shell portion 301, a compensation portion 304 arranged on the fixing portion 303, a torque portion 305 arranged on the shell portion 301, and a limiting portion 306 arranged on the shell portion 301.

[0038] Furthermore, the coal drop pipe 102 and the feed pipe 103 are arranged perpendicular to the spiral conveying pipe 101, and the first bend 201 and the second bend 203 have a certain curvature, so that the monitoring pipe 202 is not perpendicular to the spiral conveying pipe 101, so that when the coal enters the monitoring pipe 202, it can slide along the inner wall of the monitoring pipe 202 instead of freely falling in the monitoring pipe 202, thereby increasing the accuracy of the device monitoring.

[0039] During use, when the coal enters the spiral conveying pipe 101 through the feed pipe 103, the monitoring mechanism 300 monitors the change of the coal flow, and obtains the real-time flow data of the coal entering the feed pipe 103. After a delay of 10 seconds, when the coal leaves the coal dropping pipe 102 through the spiral conveying pipe 101, the monitoring mechanism 300 monitors the change of the coal flow, and obtains the real-time flow data of the coal leaving the coal dropping pipe 102. The two real-time flow data after a delay of 10 seconds (10 seconds is the time for the coal to pass through the spiral conveying pipe 101) are compared through the PLC host computer. When the deviation of the two real-time flow data is greater than 30% and exceeds 4 seconds, the spiral conveying pipe 101 is stopped through program interlocking, and the host computer displays a blockage fault in the spiral conveying pipe 101, prompting the operating personnel to check whether the spiral conveying pipe 101 is blocked.

[0040] Example 2

[0041] Reference Figures 1 to 4 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the square modification part 204 includes a square modification fixing frame 204a arranged in the monitoring tube 202, a square tube 204b arranged on the square modification fixing frame 204a, and a foam cavity 204c arranged between the square tube 204b and the monitoring tube 202; wherein, the square modification fixing frame 204a is fixedly connected to the inner wall of the monitoring tube 202, and is used to increase the contact area between the square tube 204b and the inner wall of the monitoring tube 202, and increase the stability of the square tube 204b; the foam cavity 204c is used to fill the foaming agent, increase the structural strength of the square tube 204b, and prevent the square tube 204b from having potholes, which affects the accuracy of monitoring by the laser scanner 302.

[0042] The end sealing portion 205 includes end covers 205a arranged at both ends of the square tube 204b, square holes 205c arranged on the end covers 205a and adapted to the square tube 204b, and slopes 205b arranged on the end covers 205a; wherein, two end covers 205a are arranged, fixedly connected to both ends of the square tube 204b, and are used to seal the foam cavity 204c to prevent materials from entering the foam cavity 204c. The setting of the slope 205b makes it easy for materials to enter the square tube 204b and prevent them from accumulating on the end covers 205a.

[0043] The gluing part 206 includes a gluing groove 206a arranged on the monitoring tube 202, and a fixing plate 206b arranged on the monitoring tube 202 and adapted to the gluing groove 206a; wherein, the setting of the gluing groove 206a facilitates the insertion of the glue gun, thereby facilitating the filling of the foam agent, the gluing groove 206a corresponds to the foam cavity 204c, and is staggered with the square fixing frame 204a, and the fixing plate 206b is fixedly connected to the monitoring tube 202.

[0044] The through hole portion 207 includes a monitoring hole 207a arranged on the square-modified fixing frame 204a, and a blocking piece 207b arranged in the monitoring hole 207a; wherein, the through hole portion 207 is arranged on the top of the square-modified fixing frame 204a, and is used for the insertion of the laser scanner 302. At the same time, the setting at the top facilitates the laser scanner 302 to perform scanning and monitoring. The blocking piece 207b is made of glass to prevent the material from squeezing and damaging the laser scanner 302 through the monitoring hole 207a when blocking.

[0045] The remaining structures are the same as those of Example 1.

[0046] During use, the monitoring tube 202 is fixedly connected between the first elbow 201 and the second elbow 203 through the flange, the foaming agent is filled into the foam cavity 204c through the glue groove 206a, and the fixing plate 206b is used to seal and fix it. The coal enters the square tube 204b through the slope 205b, and the coal in the square tube 204b is monitored by the laser scanner 302. Through the setting of the square tube 204b, the scanning of the laser scanner 302 can cover the entire pipeline cross-section, thereby increasing the accuracy of monitoring.

[0047] Example 3

[0048] Reference Figures 5 to 8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the shell portion 301 includes a mounting shell 301a arranged on the monitoring tube 202, and a mounting groove 301b arranged on the mounting shell 301a; wherein, the mounting shell 301a is fixedly connected to the monitoring tube 202, and the mounting groove 301b is opened on the top of the mounting shell 301a for placing the laser scanner 302.

[0049] The laser scanner 302 includes a scanner body 302a arranged in the mounting shell 301a, a scanner probe 302b arranged on the scanner body 302a and adapted to the monitoring hole 207a, and a scanner data line 302c arranged on the scanner body 302a; wherein, the scanner probe 302b is located in the middle of the monitoring tube 202, perpendicular to the opening in the tube wall, and the scanner probe 302b extends 1 mm into the square tube 204b. Through the setting of the square tube 204b, the scanning angle of the laser scanner 302 only needs to be 90 degrees to cover the entire cross-section of the square tube 204b, and there is no blind spot scanning, thereby increasing the monitoring accuracy of the device.

[0050] The fixing portion 303 includes an arc plate 303a arranged on the mounting shell 301a, and an arc surface 303b arranged on the arc plate 303a; wherein the arc plate 303a is an arc plate, and the inner arc surface is adapted to the corner of the mounting shell 301a, and two arc plates 303a are provided, which are arranged at two corners of the mounting shell 301a and are rotatably connected to the mounting shell 301a, and the arc surface 303b is used for separating the torque portion 305.

[0051] The compensation part 304 includes a threaded rod 304a disposed on the arc plate 303a and an extrusion head 304b disposed on the threaded rod 304a; wherein the threaded rod 304a is threadedly connected to the end of the arc plate 303a to adjust the height of the extrusion head 304b and increase the applicability of the device.

[0052] The torsion unit 305 includes a torsion shaft 305a disposed on the mounting shell 301a, a torsion plate 305b disposed on the torsion shaft 305a, a torsion spring 305c disposed on the torsion shaft 305a, and a squeezing roller 305d disposed on the torsion plate 305b. The arc center of the arc surface 303b and the axis center of the torsion shaft 305a are on the same axis. The torsion shaft 305a is rotatably disposed on the mounting shell 301a, the torsion plate 305b is fixedly connected to the torsion shaft 305a, and the torsion spring 305c is disposed on the torsion shaft 305a. One end of 5c is fixedly connected to the torsion plate 305b, and the other end is fixedly connected to the mounting shell 301a. The squeezing roller 305d is rotatably set on the torsion plate 305b. The arc center of the arc surface 303b and the axis center of the torsion shaft 305a are on the same axis. Therefore, the squeezing roller 305d can be rotated along the arc surface 303b to separate from the arc plate 303a. The elastic force of the torsion spring 305c drives the squeezing roller 305d to squeeze the arc plate 303a, so that the scanner body 302a can be fixed.

[0053] The limiting portion 306 includes a limiting roller 306a arranged in the mounting shell 301a, and a limiting head 306b arranged on the monitoring tube 202 and adapted to the scanner body 302a; wherein, there are a plurality of limiting rollers 306a, which are rotatably arranged at the front and rear of the mounting shell 301a, so as to facilitate the placement and removal of the scanner body 302a and reduce the wear of the scanner body 302a; the limiting head 306b is fixedly arranged on the monitoring tube 202, and is used to limit the scanner body 302a; and the stability of the scanner body 302a is further increased by the arrangement of the limiting head 306b.

[0054] The remaining structure is the same as that of Example 2.

[0055] During use, the squeezing roller 305d is bent and rotated along the arc surface 303b, thereby disengaging from the arc plate 303a. At the same time, the squeezing roller 305d drives the torsion plate 305b to twist the torsion spring 305c, and then the arc plate 303a is rotated to make the squeezing head 304b move away from the mounting groove 301b. The scanner body 302a is placed in the mounting shell 301a through the mounting groove 301b, and the scanner probe 302b is inserted into the monitoring hole 207a, and the scanner body 302a is fixed at the same time.

[0056] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0057] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A material blocking protection device for a spiral ship unloader, characterized in that: include, The unloading mechanism (100) comprises a spiral conveying pipe (101), a coal dropping pipe (102) arranged on the spiral conveying pipe (101), and a feeding pipe (103) arranged on the spiral conveying pipe (101); The square-changing mechanism (200) comprises a first curved pipe (201) arranged on the coal dropping pipe (102) and the feeding pipe (103), a monitoring pipe (202) arranged on the first curved pipe (201), a second curved pipe (203) arranged on the monitoring pipe (202), a square-changing portion (204) arranged in the monitoring pipe (202), an end sealing portion (205) arranged on the square-changing portion (204), a gluing portion (206) arranged on the monitoring pipe (202), and a through hole portion (207) arranged on the square-changing portion (204); and, The monitoring mechanism (300) comprises a shell portion (301) arranged on the monitoring tube (202), a laser scanner (302) arranged in the shell portion (301), a fixing portion (303) arranged on the shell portion (301), a compensation portion (304) arranged on the fixing portion (303), a torsion portion (305) arranged on the shell portion (301), and a limiting portion (306) arranged on the shell portion (301).

2. The material blocking protection device for a screw ship unloader according to claim 1 is characterized in that: The square modification part (204) comprises a square modification fixing frame (204a) arranged in the monitoring tube (202), a square tube (204b) arranged on the square modification fixing frame (204a), and a foam cavity (204c) arranged between the square tube (204b) and the monitoring tube (202).

3. The material blocking protection device for a screw ship unloader according to claim 2 is characterized in that: The end sealing portion (205) comprises end covers (205a) arranged at both ends of the square tube (204b), square holes (205c) arranged on the end covers (205a) and matching the square tube (204b), and a slope surface (205b) arranged on the end covers (205a).

4. The material blocking protection device for a screw ship unloader according to claim 3 is characterized in that: The gluing part (206) comprises a gluing groove (206a) arranged on the monitoring tube (202), and a fixing plate (206b) arranged on the monitoring tube (202) and matched with the gluing groove (206a).

5. The material blocking protection device for a screw ship unloader according to claim 4 is characterized in that: The through hole portion (207) comprises a monitoring hole (207a) arranged on the square fixing frame (204a) and a blocking piece (207b) arranged in the monitoring hole (207a).

6. The material blocking protection device for a screw ship unloader according to claim 5 is characterized in that: The housing portion (301) comprises a mounting shell (301a) disposed on the monitoring tube (202) and a mounting groove (301b) disposed on the mounting shell (301a).

7. The material blocking protection device for a screw ship unloader according to claim 6 is characterized in that: The laser scanner (302) comprises a scanner body (302a) disposed in the mounting shell (301a), a scanner probe (302b) disposed on the scanner body (302a) and adapted to the monitoring hole (207a), and a scanner data line (302c) disposed on the scanner body (302a).

8. The material blocking protection device for a screw ship unloader according to claim 7 is characterized in that: The fixing portion (303) comprises an arc-shaped plate (303a) arranged on the mounting shell (301a) and an arc surface (303b) arranged on the arc-shaped plate (303a).

9. The material blocking protection device for a screw ship unloader according to claim 8 is characterized in that: The compensation part (304) comprises a threaded rod (304a) arranged on the arc-shaped plate (303a) and an extrusion head (304b) arranged on the threaded rod (304a).

10. The material blocking protection device for a screw ship unloader according to claim 9, characterized in that: The torsion portion (305) comprises a torsion shaft (305a) arranged on the mounting shell (301a), a torsion plate (305b) arranged on the torsion shaft (305a), a torsion spring (305c) arranged on the torsion shaft (305a), and a squeezing roller (305d) arranged on the torsion plate (305b), and the arc center of the arc surface (303b) and the axis center of the torsion shaft (305a) are on the same axis; The limiting portion (306) comprises a limiting roller (306a) arranged in the mounting shell (301a), and a limiting head (306b) arranged on the monitoring tube (202) and adapted to the scanner body (302a).

Images