Reverse circulation coal powder sampling device

Abstract

The present invention relates to the technical field of sampling devices, specifically to a reverse circulation coal powder sampling device, including a vacuum machine, a recess, a second docking plate and a filter screen, wherein the outer wall of the vacuum machine is connected with a card block, one side of the card block is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a limit plate, one side of the limit plate is fixedly connected with a spring, the outer wall of the spring is movably connected with a spring groove, and the outer wall of the spring groove is connected with a first docking plate; the bottom of the first docking plate is fixedly connected with a connecting column, and the bottom of the connecting column is fixedly connected with a card strip. The reverse circulation coal powder sampling device docks one end of the vacuum machine with the mounting port on the first docking plate, so that the vacuum machine will squeeze the card blocks on both sides of the mounting port of the first docking plate toward both ends. At this time, under the elastic action of the spring, the spring will drive the limit plate and the connecting block to reset, and finally the connecting block drives the card block to be stuck on the outer wall of the vacuum machine, so as to achieve the effect of facilitating the fixing of the vacuum machine and making the installation of the vacuum machine more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a reverse circulation coal powder sampling device. Background Art

[0002] The coal powder sampling device is a special device for sampling coal powder on the primary air delivery pipeline of the positive pressure direct blowing pulverizing system. In the daily operation of the coal mill, the wear of the coal mill grinding parts, the change of coal type and block size will cause a large change in the fineness of the coal powder, which will directly affect the boiler combustion efficiency and increase the power generation cost. Therefore, the coal powder fineness should be sampled and tested regularly. When the coal powder fineness exceeds the design value, the coal mill grinding parts or the separator folding door opening should be adjusted in time.

[0003] The current reverse circulation coal powder sampling device has the following shortcomings when in use: the vacuum machine on the device needs to be installed using multiple bolts and clamps, so the existing device needs to be improved to simplify the installation process of the vacuum machine. Summary of the invention

[0004] The purpose of the present invention is to provide a reverse circulation coal powder sampling device to solve the problem that the current reverse circulation coal powder sampling device mentioned in the above background technology has the following shortcomings when in use: when installing the vacuum machine on the device, multiple bolts and clips are required to install the vacuum machine on the device. Therefore, it is necessary to improve the existing device to simplify the installation process of the vacuum machine.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a reverse circulation coal powder sampling device, comprising a vacuum machine, a notch, a second docking plate and a filter screen, wherein the outer wall of the vacuum machine is connected to a clamping block, one side of the clamping block is fixedly connected to a connecting block, one side of the connecting block is fixedly connected to a limit plate, one side of the limit plate is fixedly connected to a spring, the outer wall of the spring is movably connected to a spring groove, and the outer wall of the spring groove is connected to a first docking plate;

[0006] The bottom of the first docking plate is fixedly connected with a connecting column, the bottom of the connecting column is fixedly connected with a clamping strip, both ends of the clamping strip are fixedly connected with protrusions, the inside of the recess is movably connected with a protrusion, the outer wall of the recess is fixedly connected with a mounting groove, and the surface of the second docking plate is provided with a mounting groove;

[0007] A suction port is connected through the inside of the installation groove, a clamping block is connected to the inner wall of the suction port, a docking strip is fixedly connected to one side of the clamping block, a frame is fixedly connected to one side of the docking strip, and the outer wall of the filter is fixedly connected to the frame.

[0008] As a further preferred technical solution, two card blocks are provided, and the card blocks are semicircular structures, and the inner walls of the two card blocks are tangent to the outer wall of the vacuum machine, and a connecting block is installed at the horizontal midline position of each card block.

[0009] As a further preferred technical solution, two spring grooves are provided, and the two spring grooves are symmetrical to each other about the longitudinal center line of the first docking plate, and each spring groove is respectively connected to a group of connecting blocks, limit plates and springs, and there is an elastic linkage structure between the connecting blocks, limit plates, springs and spring grooves.

[0010] As a further preferred technical solution, a connecting column is vertically connected to the surface of the card strip, and the longitudinal center line of the connecting column is located at the same position as the longitudinal center line of the first docking plate and the card strip, and the maximum transverse vertical length of the connecting column is smaller than the maximum transverse vertical length of the card strip.

[0011] As a further preferred technical solution, a group of arc-shaped recesses are respectively provided on the inner walls at both ends of the cross section of the installation groove, and the inner dimensions of the recesses match the dimensions of the protrusions, and the protrusions are made of rubber.

[0012] As a further preferred technical solution, the inner wall of the suction port is provided with two inverted "T" shaped mounting openings, and the size of the mounting hole of the suction port matches the size of the clamping bolt and the docking strip, and the clamping bolt and the docking strip are snap-fittedly connected to the suction port.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the reverse circulation pulverized coal sampling device is in use, one end of the vacuum machine is docked with the mounting port on the first docking plate, so that the vacuum machine will squeeze the blocks on both sides of the mounting port of the first docking plate toward both ends. At this time, under the elastic action of the spring, the spring will drive the limit plate and the connecting block to reset, and finally the connecting block will drive the block to be stuck on the outer wall of the vacuum machine, so as to facilitate the fixing of the vacuum machine and make the installation of the vacuum machine more convenient.

[0015] 2. The protrusion of the reverse circulation coal powder sampling device is made of rubber. When the connecting column is pulled upward, the connecting column will move upward through the clamping strip, so that the clamping strip can drive the protrusion to move upward, so that the protrusion is docked with the recess at the upper end of the mounting groove, and finally the length of the first docking plate, the connecting column and the second docking plate is lengthened to meet the needs of actual use.

[0016] 3. The clamping bolt and docking strip of the reverse circulation pulverized coal sampling device are snap-fitted to the suction port. When in use, the docking strips and clamping bolts at both ends of the frame are docked with the inner wall of the suction port, so that the frame and the filter can be installed inside the suction port, thereby preventing large particles from clogging the suction port during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a main schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the connecting column of the present invention;

[0019] Figure 3 It is an enlarged schematic diagram of A of the present invention;

[0020] Figure 4 It is a schematic diagram of the side cross-sectional connection structure of the suction port of the present invention.

[0021] In the figure: 1, vacuum machine; 2, clamping block; 3, connecting block; 4, limiting plate; 5, spring; 6, spring groove; 7, first docking plate; 8, connecting column; 9, clamping strip; 10, protrusion; 11, recess; 12, mounting groove; 13, second docking plate; 14, suction port; 15, clamping bolt; 16, docking strip; 17, frame; 18, filter screen. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] As the instruction manual Figure 1-4As shown, the present invention provides a technical solution: a reverse circulation coal powder sampling device, including a vacuum machine 1, a clamping block 2, a connecting block 3, a limit plate 4, a spring 5, a spring groove 6, a first docking plate 7, a connecting column 8, a clamping strip 9, a protrusion 10, a recess 11, an installation groove 12, a second docking plate 13, a suction port 14, a clamping bolt 15, a docking strip 16, a frame 17 and a filter screen 18, the outer wall of the vacuum machine 1 is connected with a clamping block 2, the clamping block 2 is provided with two, and the clamping block 2 is a semicircular structure, and the inner walls of the two clamping blocks 2 are tangent to the outer wall of the vacuum machine 1, and each clamping block 2 is respectively installed with a connecting block 3 at the horizontal midline position, so that when in use, the two clamping blocks 2 can be completely fitted with the outer wall of the vacuum machine 1, so that the clamping blocks 2 and the vacuum machine 1 are connected. The docking of the empty machine 1 is more stable, one side of the clamping block 2 is fixedly connected to the connecting block 3, one side of the connecting block 3 is fixedly connected to the limiting plate 4, one side of the limiting plate 4 is fixedly connected to the spring 5, two spring grooves 6 are provided, and the two spring grooves 6 are symmetrical with each other about the longitudinal center line of the first docking plate 7, and each spring groove 6 is respectively connected with a group of connecting blocks 3, limiting plates 4 and springs 5, and the connecting block 3, limiting plates 4, springs 5 ​​and spring grooves 6 are elastically linked. The spring 5 will drive the limiting plate 4 and the connecting block 3 to reset, and finally the connecting block 3 drives the clamping block 2 to be stuck on the outer wall of the vacuum machine 1, and the outer wall of the spring 5 is movably connected with the spring groove 6, and the outer wall of the spring groove 6 is connected with the first docking plate 7.

[0025] The bottom of the first docking plate 7 is fixedly connected to a connecting column 8, and the bottom of the connecting column 8 is fixedly connected to a clamping strip 9. The surface of the clamping strip 9 is vertically connected to the connecting column 8, and the longitudinal center line of the connecting column 8 is located at the same position as the longitudinal center line of the first docking plate 7 and the clamping strip 9, and the maximum horizontal vertical length of the connecting column 8 is less than the maximum horizontal vertical length of the clamping strip 9. When the connecting column 8 is pulled upward, the connecting column 8 will move upward through the clamping strip 9, so that the clamping strip 9 can drive the protrusion 10 to move upward. The two ends of the clamping strip 9 are fixedly connected to The protrusion 10 is movably connected inside the recess 11, and the outer wall of the recess 11 is fixedly connected with a mounting groove 12. A group of arc-shaped recesses 11 are respectively arranged on the inner walls at both ends of the cross section of the mounting groove 12, and the internal size of the recess 11 matches the size of the protrusion 10, and the protrusion 10 is made of rubber, so that when the card strip 9 moves, the protrusion 10 will be driven to move, thereby causing the protrusion 10 to deform, so that the protrusion 10 can be separated from the recess 11, and the surface of the second docking plate 13 is provided with a mounting groove 12.

[0026] The mounting groove 12 is connected with a suction port 14 running through it, and the inner wall of the suction port 14 is provided with two inverted "T"-shaped mounting ports, and the size of the mounting hole of the suction port 14 matches the size of the clamp 15 and the docking strip 16, and the clamp 15 and the docking strip 16 are snap-fittedly connected to the suction port 14, and the docking strips 16 and the clamp 15 at both ends of the frame 17 are docked with the inner wall of the suction port 14, so that the frame 17 and the filter screen 18 can be installed inside the suction port 14, and the inner wall of the suction port 14 is connected with the clamp 15, and one side of the clamp 15 is fixedly connected to the docking strip 16, and one side of the docking strip 16 is fixedly connected to the frame 17, and the outer wall of the filter screen 18 is fixedly connected to the frame 17.

[0027] Specific actual working process: When using the reverse circulation coal powder sampling device, first dock one end of the vacuum machine 1 with the installation port on the first docking plate 7, so that the vacuum machine 1 will squeeze the blocks 2 on both sides of the installation port of the first docking plate 7 to both ends. At this time, under the elastic action of the spring 5, the spring 5 will drive the limit plate 4 and the connecting block 3 to reset, and finally the connecting block 3 will drive the block 2 to be stuck on the outer wall of the vacuum machine 1, so as to facilitate the fixing of the vacuum machine 1. The convex block of the device is made of rubber material 10. When the connecting column 8 is pulled upward, the connecting column 8 will move upward through the card strip 9, so that the card strip 9 can drive the convex block 10 to move upward, so that the convex block 10 and the connecting column 8 are connected. The notch 11 at the upper end of the mounting groove 12 is docked, and finally the length of the first docking plate 7, the connecting column 8 and the second docking plate 13 are lengthened, so as to meet the needs of actual use. In addition, the clamping bolt 15 and the docking strip 16 are snap-fittedly connected to the suction port 14. When in use, the docking strips 16 and the clamping bolt 15 at both ends of the frame 17 are docked with the inner wall of the suction port 14, so that the frame 17 and the filter screen 18 can be installed inside the suction port 14, so as to prevent large particles from clogging the suction port 14 when in use. This is the characteristic of the reverse circulation coal powder sampling device. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should belong to the technical scope of the present invention.

Claims

1. A reverse circulation coal powder sampling device, comprising a vacuum machine (1), a notch (11), a second docking plate (13) and a filter screen (18), characterized in that: The outer wall of the vacuum machine (1) is connected to a clamping block (2), one side of the clamping block (2) is fixedly connected to a connecting block (3), one side of the connecting block (3) is fixedly connected to a limiting plate (4), one side of the limiting plate (4) is fixedly connected to a spring (5), the outer wall of the spring (5) is movably connected to a spring groove (6), and the outer wall of the spring groove (6) is connected to a first docking plate (7); The first docking plate (7) is fixedly connected to a connecting column (8) at the bottom, the connecting column (8) is fixedly connected to a clamping strip (9) at the bottom, the clamping strip (9) is fixedly connected to protrusions (10) at both ends, the recess (11) is movably connected to the protrusions (10), the outer wall of the recess (11) is fixedly connected to a mounting groove (12), and the second docking plate (13) is provided with a mounting groove (12) on its surface; A suction port (14) is connected to the interior of the installation groove (12); a clamping bolt (15) is connected to the inner wall of the suction port (14); a docking strip (16) is fixedly connected to one side of the clamping bolt (15); a frame (17) is fixedly connected to one side of the docking strip (16); and an outer wall of the filter screen (18) is fixedly connected to the frame (17); Two of the card blocks (2) are provided, and the card blocks (2) are of a semicircular structure, and the inner walls of the two card blocks (2) are tangent to the outer wall of the vacuum machine (1), and a connecting block (3) is respectively installed at the transverse midline position of each card block (2); Two spring grooves (6) are provided, and the two spring grooves (6) are symmetrical with respect to the longitudinal midline of the first docking plate (7), and each spring groove (6) is respectively connected to a group of connecting blocks (3), limiting plates (4) and springs (5), and an elastic linkage structure is formed between the connecting blocks (3), limiting plates (4), springs (5) and spring grooves (6); The inner wall of the suction port (14) is provided with two inverted "T"-shaped mounting openings, and the size of the mounting hole of the suction port (14) matches the size of the clamping bolt (15) and the docking strip (16), and the clamping bolt (15) and the docking strip (16) are in a clamping connection with the suction port (14).

2. The reverse circulation coal powder sampling device according to claim 1 is characterized in that: A connecting column (8) is vertically connected to the surface of the clamping strip (9), and a longitudinal midline of the connecting column (8) is located at the same position as a longitudinal midline of the first docking plate (7) and the clamping strip (9), and a maximum transverse vertical length of the connecting column (8) is less than a maximum transverse vertical length of the clamping strip (9).

3. The reverse circulation coal powder sampling device according to claim 1 is characterized in that: A group of arc-shaped notches (11) are respectively provided on the inner walls at both ends of the cross section of the installation groove (12), and the internal dimensions of the notches (11) match the dimensions of the protrusions (10), and the protrusions (10) are made of rubber.

Images