Automatic sampling device for coal as fired

Abstract

The invention discloses an automatic as-fired coal sampling device, and particularly relates to the technical field of sampling, the automatic as-fired coal sampling device comprises a sampling electric cylinder, a push block, a linkage strip and a linkage sampling discharging mechanism; the linkage sampling and discharging mechanism comprises a linkage block, an arc-shaped stop block, a furnace feeding pipe, a sampling hole, a connecting column, a sampling barrel and a limiting ring, and the linkage sampling and discharging mechanism further comprises a positioning discharging and sampling assembly and a linkage pushing assembly. Through the linkage sampling and discharging mechanism, the device has the advantages that a sampling barrel moves leftwards along a sampling hole, coal can be directly taken out from the inside of a furnace feeding pipe in a penetrating manner, the coal can be quickly discharged to a specified sampling position in the penetrating and sampling process, and the sampling efficiency is greatly improved; therefore, the problem that the sampling efficiency is relatively low due to the fact that the coal is difficult to be quickly discharged to a specified sampling position in the penetrating sampling process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling, and more particularly to an automatic sampling device for coal entering a furnace. Background Art

[0002] During the production process, changes in coal quality have a great impact on production processes and product quality. Collecting accurate coal samples is a prerequisite for coal quality analysis. The automatic sampling device for coal entering the furnace can accurately sample from the coal flow or coal pile in a timely and quantitative manner through a preset program, avoiding problems such as uneven sampling and inconsistent sampling time that may occur during manual sampling. High-precision sensors and advanced control algorithms ensure the accuracy and consistency of each sampling, thereby improving the accuracy of coal quality analysis.

[0003] In the existing public documents, the patent announcement number CN217765542U discloses an automatic sampling device for coal entering the furnace of a direct-blowing pulverizing system. This technology completes automatic sampling and automatic transportation by sampling and collecting when the collection reaches the designed time. When the material in the inner cavity of the collection tank needs to be taken out, the material collected in the inner cavity of the collection tank can be directly taken out by removing the sealing cover. This process is completed by rotating the conveying pipeline and closing and opening the electric control valve, thereby realizing automatic sampling, eliminating the need for manual sampling by staff, reducing the workload and improving work efficiency. However, this technology still has the following defects.

[0004] During the automatic sampling process of coal entering the furnace, the sampling position needs to be opened to take the coal, and then it needs to be taken out. It is difficult to quickly discharge the coal to the designated sampling position during the sampling process, which leads to low sampling efficiency. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: an automatic sampling device for coal entering a furnace, comprising a sampling electric cylinder, a push block and a linkage bar, the push block is fixed on the output end of the sampling electric cylinder, the linkage bar is fixed on one side of the push block, and a linkage sampling and discharging mechanism is provided on the lower surface of the linkage bar; the linkage sampling and discharging mechanism comprises a linkage block fixedly arranged on the lower surface of the linkage bar, and an arc-shaped stopper is fixedly connected to the bottom end of the linkage block, a furnace feed pipe is provided on one side of the arc-shaped stopper, and the furnace feed pipe is fixedly connected to the sampling electric cylinder, and a sampling hole is opened on the inner wall of the furnace feed pipe; a connecting column is fixedly installed on the bottom end of the linkage bar, a sampling tube is fixedly connected to the bottom end of the connecting column, the outer wall of the sampling tube is slidably connected to a limiting ring, and the limiting ring is fixedly connected to the furnace feed pipe.

[0006] Preferably, the vertical cross-section of the arc-shaped stopper is an arc-shaped, and the arc-shaped stopper is slidably connected to the furnace feed pipe, the linkage bar is slidably connected to the furnace feed pipe, and the vertical cross-section of the linkage bar is L-shaped; the outer wall of the sampling tube and the inner wall of the limit ring are both smooth surfaces. A controller is installed on one side of the sampling electric cylinder, and the furnace feed pipe and the sampling electric cylinder are fixedly connected to the controller.

[0007] When this technology is in use, the furnace feed pipe is docked at the furnace coal inlet, the sampling electric cylinder is started by the controller to push the push block to the left, the linkage bar drives the linkage block to move left, the arc block opens the sampling hole, the connecting column drives the sampling tube to move left, the sampling tube squeezes the coal inside the furnace feed pipe out, and the sampling tube moves left along the sampling hole.

[0008] Preferably, a positioning and discharging sampling assembly is installed inside the sampling barrel; the positioning and discharging sampling assembly includes a push block slidably installed inside the sampling barrel, and one end of the push block is fixedly connected to a push rod, one end of the push rod is fixedly connected to a pushing electric cylinder, one end of the pushing electric cylinder is fixedly installed with a reinforcement column, and the outer wall of the reinforcement column is fixedly connected to a concave frame, and the concave frame is fixedly connected to the sampling barrel; one side of the outer wall of the sampling barrel is fixedly connected to an induction block, one side of the sampling barrel is provided with a pillar, and the pillar is fixedly connected to the furnace feed pipe, one end of the pillar is fixedly installed with a sleeve block, and the sleeve block drives the inner wall to be plugged with a proximity sensor. The vertical cross-section of the push block is circular, and the outer wall of the push block and the inner wall of the sampling barrel are both smooth surfaces. The pillar is used to support the sleeve block, and the vertical cross-section of the pillar is circular.

[0009] When this technology is in use, the sleeve block supports the proximity sensor. When the proximity sensor senses the sensing block, the sampling electric cylinder is closed through the controller, and the pushing electric cylinder is started at the same time. The concave frame supports the reinforcement column, and the pushing electric cylinder pushes the push rod to move. The pushing block is pushed along the inside of the sampling tube to push the coal out while sampling.

[0010] Preferably, a linkage pushing assembly is provided on one side of the arc-shaped stopper; the linkage pushing assembly includes a pushing block arranged on one side of the arc-shaped stopper, and the pushing block is slidably connected to the feeding pipe into the furnace, one side of the pushing block is slidably connected to a limiting plate, the bottom end of the limiting plate is fixedly connected to a guide plate, the guide plate and the limiting plate are both fixedly connected to the feeding pipe into the furnace, and one side of the limiting plate is fixedly connected to a sliding frame.

[0011] The inner wall of the slide frame is rotatably connected with a screw, and a reduction motor is fixedly installed on one side of the inner wall of the slide frame. The output end of the reduction motor is fixedly connected to the screw, and the outer wall of the screw is threadedly connected with a threaded sleeve, and one end of the threaded sleeve is fixedly connected with a linkage ring; the inner wall of the linkage ring is fixedly installed with a linkage rod, and the linkage rod is fixedly connected with a push block, and one end of the linkage rod is fixedly connected with a discharge block, and the discharge block is slidably connected with the guide plate. The threaded sleeve is slidably connected with the limit plate, and the reduction motor is used to drive the screw to rotate. One side of the push block is chamfered, and the vertical cross-section of the linkage rod is circular.

[0012] When this technology is in use, the reduction motor drives the screw to rotate, and the screw drives the threaded sleeve to move right under the action of the thread transmission force, the linkage ring drives the linkage rod to move right, the pushing block moves right along the guide plate, and the coal inside the guide plate moves right to push the material out.

[0013] Technical effects and advantages of the present invention: 1. The present invention uses a linkage sampling and discharging mechanism. The sampling electric cylinder is started by a controller to push the push block to move left, the linkage bar drives the linkage block to move left, the linkage block drives the arc-shaped stopper to move left, the linkage bar drives the connecting column to move left, the connecting column drives the sampling tube to move left, the sampling tube moves left along the inner wall of the limit ring, and the sampling tube moves left along the sampling hole. It can directly penetrate from the inside of the furnace feed pipe to take out the coal. In the process of penetrating sampling, the coal can be quickly discharged to the designated sampling position, thereby greatly improving the sampling efficiency.

[0014] 2. The present invention adopts a positioning discharge sampling component. When the proximity sensor senses the sensing block, the sampling electric cylinder is closed through the controller, and the pushing electric cylinder is started at the same time. The pushing electric cylinder pushes the push rod to move, and the push rod pushes the pushing block to move, pushing out the coal inside the sampling tube. The coal is pushed out while sampling, greatly improving the sampling efficiency.

[0015] 3. The present invention adopts a linkage pushing assembly. The reduction motor drives the screw to rotate. The screw drives the threaded sleeve to move right under the action of the thread transmission force. The linkage ring drives the linkage rod to move right. The linkage rod drives the push block to move right. The linkage rod drives the discharge block to move right. In this way, the coal inside the guide plate moves right to push the discharge, which greatly improves the sampling efficiency.

[0016] The mutual influence of the above-mentioned multiple effects first enables the coal to be directly taken out from the furnace feed pipe, then the coal in the sampling tube is pushed out, the coal is pushed out while sampling, and finally the coal in the guide plate is moved to the right to promote the discharge. In summary, the coal can be quickly discharged to the designated sampling position during the sampling process, greatly improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the automatic sampling device for coal entering the furnace of the present invention.

[0018] Figure 2 It is a schematic diagram of the vertical cross-section structure of the automatic sampling device for coal entering the furnace of the present invention.

[0019] Figure 3 It is a schematic diagram of the local structure of the vertical section of the connection between the linkage block and the arc-shaped stopper of the present invention.

[0020] Figure 4 It is a schematic diagram of the local structure of the vertical section of the connection between the sampling tube and the connecting column of the present invention.

[0021] Figure 5 It is a schematic diagram of the partial structure of the connection between the support and the furnace feed pipe of the present invention.

[0022] Figure 6 It is a schematic diagram of the partial structure of the connection between the reinforcement column and the concave frame of the present invention from a front view.

[0023] Figure 7 It is a schematic diagram of the top view of the structure of the automatic sampling device for coal entering the furnace of the present invention.

[0024] Figure 8 It is a schematic diagram of a partial structure of the linkage pushing assembly of the present invention.

[0025] The accompanying drawings are marked as follows: 1. Sampling electric cylinder; 2. Push block; 3. Linkage bar; 4. Linkage block; 5. Arc stopper; 6. Furnace feed pipe; 7. Sampling hole; 8. Connecting column; 9. Sampling tube; 10. Limiting ring; 11. Controller; 12. Push block; 13. Push rod; 14. Pushing electric cylinder; 15. Concave frame; 16. Induction block; 17. Reinforcement column; 18. Pillar; 19. Bushing; 20. Proximity sensor; 21. Push block; 22. Limiting plate; 23. Guide plate; 24. Slide frame; 25. Screw; 26. Reducer motor; 27. Threaded bushing; 28. Linkage rod; 29. ​​Discharging block; 30. Linkage ring. DETAILED DESCRIPTION

[0026] 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.

[0027] As attached Figure 1 - Attachment Figure 8An automatic sampling device for coal entering the furnace is shown, which is provided with a linkage sampling and discharging mechanism, a positioning and discharging sampling component, and a linkage pushing component. The arrangement of each mechanism and component can quickly discharge the coal to the designated sampling position throughout the sampling process, thereby greatly improving the sampling efficiency. The specific structural arrangement of each mechanism and component is as follows.

[0028] In this embodiment, as shown in the attached Figure 1 - Attachment Figure 4 As shown, the push block 2 is fixed on the output end of the sampling electric cylinder 1, the linkage bar 3 is fixed on one side of the push block 2, and the lower surface of the linkage bar 3 is provided with a linkage sampling and discharging mechanism; the linkage sampling and discharging mechanism includes a linkage block 4 fixedly arranged on the lower surface of the linkage bar 3, and the bottom end of the linkage block 4 is fixedly connected with an arc-shaped stopper 5, one side of the arc-shaped stopper 5 is provided with a furnace feed pipe 6, and the furnace feed pipe 6 is fixedly connected with the sampling electric cylinder 1, and the inner wall of the furnace feed pipe 6 is provided with a sampling hole 7; the bottom end of the linkage bar 3 is fixedly installed with a connecting column 8, and the bottom end of the connecting column 8 is fixedly connected with a sampling tube 9, and the outer wall of the sampling tube 9 is slidably connected with a limit ring 10, and the limit ring 10 is fixedly connected with the furnace feed pipe 6. A controller 11 is installed on one side of the sampling electric cylinder 1, and the furnace feed pipe 6 and the sampling electric cylinder 1 are both fixedly connected with the controller 11.

[0029] In this embodiment, as shown in the attached Figure 5 - Attachment Figure 6 As shown, a positioning and discharging sampling component is installed inside the sampling barrel 9; the positioning and discharging sampling component includes a pushing block 12 slidably installed inside the sampling barrel 9, and one end of the pushing block 12 is fixedly connected to a push rod 13, one end of the push rod 13 is fixedly connected to a pushing electric cylinder 14, one end of the pushing electric cylinder 14 is fixedly installed with a reinforcement column 17, and the outer wall of the reinforcement column 17 is fixedly connected to a concave frame 15, and the concave frame 15 is fixedly connected to the sampling barrel 9.

[0030] The outer wall of the sampling tube 9 is fixedly connected with a sensing block 16, and a support 18 is provided on one side of the sampling tube 9, and the support 18 is fixedly connected to the furnace feed pipe 6, and a sleeve block 19 is fixedly installed at one end of the support 18, and the sleeve block 19 drives the inner wall to be plugged with a proximity sensor 20. The vertical cross-section of the pusher block 12 is circular, and the outer wall of the pusher block 12 and the inner wall of the sampling tube 9 are both smooth surfaces. The support 18 is used to support the sleeve block 19, and the vertical cross-section of the support 18 is circular.

[0031] In this embodiment, as shown in the attached Figure 7 - Attachment Figure 8As shown, a linkage pushing assembly is provided on one side of the arc-shaped stopper 5; the linkage pushing assembly includes a pushing block 21 arranged on one side of the arc-shaped stopper 5, and the pushing block 21 is slidably connected to the furnace feed pipe 6, one side of the pushing block 21 is slidably connected to a limiting plate 22, the bottom end of the limiting plate 22 is fixedly connected to a guide plate 23, the guide plate 23 and the limiting plate 22 are both fixedly connected to the furnace feed pipe 6, and one side of the limiting plate 22 is fixedly connected to a sliding frame 24.

[0032] The inner wall of the slide frame 24 is rotatably connected with a screw rod 25, and a reduction motor 26 is fixedly installed on one side of the inner wall of the slide frame 24. The output end of the reduction motor 26 is fixedly connected to the screw rod 25. The outer wall of the screw rod 25 is threadedly connected with a threaded sleeve 27, and one end of the threaded sleeve 27 is fixedly connected with a linkage ring 30; the inner wall of the linkage ring 30 is fixedly installed with a linkage rod 28, and the linkage rod 28 is fixedly connected with the push block 21. One end of the linkage rod 28 is fixedly connected with a discharge block 29, and the discharge block 29 is slidably connected with the guide plate 23. The threaded sleeve 27 is slidably connected with the limit plate 22, and the reduction motor 26 is used to drive the screw rod 25 to rotate. One side of the push block 21 is chamfered, and the vertical cross-section of the linkage rod 28 is circular.

[0033] The working principle of the automatic sampling device for coal entering the furnace of the present invention is as follows: Step 1, when taking sampling and discharging materials in linkage, dock the furnace feed pipe 6 at the feeding port of the furnace coal, so that the coal enters the furnace feed pipe 6, and starts the sampling electric cylinder 1 through the controller 11 to push the push block 2 to move left, and the push block 2 drives the linkage bar 3 to move left, and the linkage bar 3 drives the linkage block 4 to move left, and the linkage block 4 drives the arc block 5 to move left, and the arc block 5 opens the sampling hole 7. At the same time, the linkage bar 3 drives the connecting column 8 to move left, and the connecting column 8 drives the sampling barrel 9 to move left, and the sampling barrel 9 moves left along the inner wall of the limit ring 10, and the sampling barrel 9 squeezes and discharges the coal in the furnace feed pipe 6, and the sampling barrel 9 moves left along the sampling hole 7, and can directly penetrate and take out the coal from the inside of the furnace feed pipe 6.

[0034] Step 2. When positioning and discharging samples, the sampling tube 9 will drive the sensing block 16 to move, and support the pillar 18 through the furnace feeding pipe 6. The pillar 18 supports the sleeve block 19, and the sleeve block 19 supports the proximity sensor 20. When the proximity sensor 20 senses the sensing block 16, the sampling electric cylinder 1 is closed through the controller 11, and the pushing electric cylinder 14 is started at the same time. The sampling tube 9 supports the concave frame 15, and the concave frame 15 supports the reinforcement column 17. The reinforcement column 17 supports the pushing electric cylinder 14 to increase the stability of the pushing electric cylinder 14. The pushing electric cylinder 14 pushes the push rod 13 to move, and the push rod 13 pushes the push block 12 to move. The push block 12 is pushed along the inside of the sampling tube 9 to push the coal inside the sampling tube 9. The coal is pushed out while sampling, and the coal enters the guide plate 23, and the limit plate 22 is limited at the same time.

[0035] Step three, when pushing the material in linkage, the reduction motor 26 is started through the controller 11, the reduction motor 26 drives the screw 25 to rotate, the screw 25 drives the threaded sleeve 27 to move right under the action of the thread transmission force, the threaded sleeve 27 drives the linkage ring 30 to move right, the linkage ring 30 drives the linkage rod 28 to move right, the linkage rod 28 drives the push block 21 to move right, the push block 21 moves right along the guide plate 23, and at the same time the linkage rod 28 drives the discharging block 29 to move right, so that the coal material inside the guide plate 23 moves right and is pushed to be discharged, and the material is discharged onto the sampling and detection platform.

[0036] It is worth noting that the left shift in step 1 and the right shift in step 2 are Figure 7 For example, taking the furnace feeding pipe 6 as the center, the guide plate 23 is arranged on its left side, and its orientation is the left direction, and the sampling tube 9 is arranged on its right side, and its orientation is the right direction.

[0037] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic sampling device for coal entering a furnace, comprising a sampling electric cylinder (1), a push block (2) and a linkage bar (3), characterized in that: The push block (2) is fixed on the output end of the sampling electric cylinder (1), the linkage bar (3) is fixed on one side of the push block (2), and the lower surface of the linkage bar (3) is provided with a linkage sampling and discharging mechanism; The linkage sampling and discharging mechanism comprises a linkage block (4) fixedly arranged on the lower surface of the linkage bar (3), and the bottom end of the linkage block (4) is fixedly connected to an arc-shaped stopper (5), one side of the arc-shaped stopper (5) is provided with a furnace feed pipe (6), and the furnace feed pipe (6) is fixedly connected to the sampling electric cylinder (1), and the inner wall of the furnace feed pipe (6) is provided with a sampling hole (7); A connecting column (8) is fixedly mounted on the bottom end of the linkage bar (3), a sampling tube (9) is fixedly connected to the bottom end of the connecting column (8), a limiting ring (10) is slidably connected to the outer wall of the sampling tube (9), and the limiting ring (10) is fixedly connected to the furnace feed pipe (6); A linkage pushing assembly is provided on one side of the arc-shaped stopper (5); The linkage pusher assembly comprises a push block (21) arranged on one side of the arc-shaped stopper (5); one side of the push block (21) is slidably connected to a limit plate (22); and the bottom end of the limit plate (22) is fixedly connected to a guide plate (23); A sliding frame (24) is fixedly connected to one side of the limiting plate (22).

2. The automatic sampling device for coal entering the furnace according to claim 1 is characterized in that: The vertical cross-section of the arc-shaped stopper (5) is in the shape of an arc, and the arc-shaped stopper (5) is slidably connected to the furnace feed pipe (6).

3. The automatic sampling device for coal entering the furnace according to claim 1 is characterized in that: The linkage bar (3) is slidably connected to the furnace feed pipe (6), and the vertical cross-section of the linkage bar (3) is L-shaped; The outer wall of the sampling tube (9) and the inner wall of the limiting ring (10) are both smooth surfaces.

4. The automatic sampling device for coal entering the furnace according to claim 1 is characterized in that: A controller (11) is installed on one side of the sampling electric cylinder (1), and the furnace feeding pipe (6) and the sampling electric cylinder (1) are both fixedly connected to the controller (11).

5. The automatic sampling device for coal entering the furnace according to claim 1 is characterized in that: A positioning and discharging sampling component is installed inside the sampling cylinder (9); The positioning and discharging sampling assembly comprises a push block (12) slidably mounted inside the sampling barrel (9), and one end of the push block (12) is fixedly connected to a push rod (13), one end of the push rod (13) is fixedly connected to a driving electric cylinder (14), one end of the driving electric cylinder (14) is fixedly mounted to a reinforcement column (17), and the outer wall of the reinforcement column (17) is fixedly connected to a concave frame (15), and the concave frame (15) is fixedly connected to the sampling barrel (9); A sensing block (16) is fixedly connected to one side of the outer wall of the sampling tube (9), a support (18) is provided on one side of the sampling tube (9), and the support (18) is fixedly connected to the furnace feed pipe (6), a sleeve block (19) is fixedly installed on one end of the support (18), and the sleeve block (19) drives the inner wall to be plugged with a proximity sensor (20).

6. The automatic sampling device for coal entering the furnace according to claim 5 is characterized in that: The vertical cross-section of the pusher block (12) is circular, and the outer wall of the pusher block (12) and the inner wall of the sampling tube (9) are both smooth surfaces.

7. The automatic sampling device for coal entering the furnace according to claim 5 is characterized in that: The pillar (18) is used to support the sleeve block (19), and the vertical cross-section of the pillar (18) is circular.

8. The automatic sampling device for coal entering the furnace according to claim 1 is characterized in that: The linkage pusher assembly further comprises a screw (25) arranged on the inner wall of the slide frame (24) and rotatably connected thereto, a reduction motor (26) is fixedly mounted on one side of the inner wall of the slide frame (24), an output end of the reduction motor (26) is fixedly connected to the screw (25), an outer wall of the screw (25) is threadedly connected to a threaded sleeve (27), and one end of the threaded sleeve (27) is fixedly connected to a linkage ring (30); A linkage rod (28) is fixedly mounted on the inner wall of the linkage ring (30), the linkage rod (28) is fixedly connected to the push block (21), one end of the linkage rod (28) is fixedly connected to a discharge block (29), and the discharge block (29) is slidably connected to the guide plate (23); The pushing block (21) is slidably connected to the furnace feeding pipe (6), and the guide plate (23) and the limit plate (22) are both fixedly connected to the furnace feeding pipe (6).

9. The automatic sampling device for coal entering the furnace according to claim 8, characterized in that: The threaded sleeve (27) is slidably connected to the limiting plate (22), and the reduction motor (26) is used to drive the screw rod (25) to rotate.

10. The automatic sampling device for coal entering the furnace according to claim 8, characterized in that: One side of the pushing block (21) is chamfered, and the vertical cross-section of the linkage rod (28) is circular.

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