Dredging mechanism of boiler feeding bin

Abstract

The utility model discloses a dredging mechanism of a boiler feed bin, which relates to the technical field of dredging of feed bins and comprises lateral stirring mechanisms which are respectively arranged on the left side and the right side of the feed bin and are used for stirring a coal mine plugging layer. The lateral stirring mechanism located on the left side comprises a circular barrel welded to the left side of the feeding bin and communicating with the feeding bin and connecting plates welded to the upper side and the lower side of the circular barrel correspondingly, the two connecting plates both extend to the left side of the circular barrel, and a hydraulic oil cylinder is fixedly arranged between the extending ends. An output shaft of the driving motor is connected with a main shaft, the right end part of the main shaft is fixedly provided with a turntable matched with the inner cavity of the circular cylinder, the right end surface of the turntable is welded with a plurality of poke rods positioned in the circular cylinder, and the right end part of each poke rod is welded with a pointed cone. The feeding bin dredging device has the advantages that the working intensity of workers is greatly relieved, and the dredging efficiency of the feeding bin is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging of a feed bin, in particular to a dredging mechanism for a boiler feed bin. Background Art

[0002] The function of the boiler in the factory is to heat water to generate high-temperature steam, which can be used to supply the production equipment in the workshop. The operation steps of the boiler in a certain factory to generate steam are as follows: workers shovel coal into the feed bin 2 located at the top of the boiler combustion chamber 1, and the shoveling direction is as follows: Figure 1 As shown by the middle arrow, when the coal falls into the combustion chamber 1 of the boiler, the jet flame in the combustion chamber 1 ignites the coal. The heat generated by the combustion heats the water in the boiler. The heated water turns into high-temperature steam, which is transported to the production equipment in the workshop through pipelines.

[0003] When the coal is shoveled into the feed bin 2, a large amount of coal will accumulate at the lower port of the feed bin 2 due to the shoveling speed being too fast or the coal size being large, so as to form a coal blocking layer 3. Figure 2 As shown, the coal mine blocking layer 3 hinders the subsequent coal mine from entering the combustion chamber of the boiler. In order to solve the above problem, it is necessary to manually use a wooden stick to dig down the coal mine blocking layer 3, so as to dredge the feed bin 2.

[0004] Although this can solve the problem, every time the feed bin 2 is blocked, it needs to be manually unblocked with a wooden stick, which undoubtedly increases the workload of the workers. In addition, the coal mine blocking layer 3 is thick, and it takes a long time for workers to unblock the coal mine blocking layer 3, which undoubtedly reduces the unblocking efficiency of the feed bin.

[0005] Therefore, there is an urgent need for a dredging mechanism that can greatly reduce the workload of workers and greatly improve the dredging efficiency of the feed bin. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a dredging mechanism for a boiler feed bin which greatly reduces the workload of workers and greatly improves the dredging efficiency of the feed bin.

[0007] The purpose of the utility model is achieved through the following technical solutions: a dredging mechanism for a boiler feed bin, which includes lateral stirring mechanisms respectively arranged on the left and right sides of the feed bin for stirring the coal mine sealing layer, the lateral stirring mechanism located on the left side includes a circular cylinder welded to the left side of the feed bin and connected to the feed bin, and connecting plates respectively welded to the upper and lower sides of the circular cylinder, the two connecting plates both extend to the left side of the circular cylinder, and a hydraulic cylinder is fixed between the extended ends;

[0008] The piston rod of the hydraulic cylinder extends to the right, and a mounting plate is fixed on the extended end, a driving motor is fixed on the right end surface of the mounting plate, the output shaft of the driving motor is connected to the main shaft, a turntable matching the inner cavity of the circular cylinder is fixed on the right end portion of the main shaft, and a plurality of toggle rods located in the circular cylinder are welded on the right end surface of the turntable, and a pointed cone is welded on the right end portion of each toggle rod.

[0009] A fixing plate is fixed between the extended ends of the two connecting plates. The cylinder body of the hydraulic oil cylinder passes through the fixing plate. A flange is welded on the cylinder body of the hydraulic oil cylinder. The cylinder body of the hydraulic oil cylinder is fixed to the fixing plate via the flange.

[0010] A through hole communicating with the feed bin is opened in the left side wall of the feed bin, and the circular cylinder is welded in the through hole.

[0011] The two lateral stirring mechanisms are arranged symmetrically about the feed bin.

[0012] Multiple toggle rods are evenly welded on the turntable.

[0013] The dredging mechanism also includes a controller, which is electrically connected to the hydraulic cylinder and the drive motor via a signal line.

[0014] The utility model has the following advantages: greatly reducing the workload of workers and greatly improving the dredging efficiency of the feed bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of shoveling coal into the feed bin;

[0016] Figure 2 Schematic diagram of blocking the feed bin for coal mine sealing layer;

[0017] Figure 3 It is a structural diagram of the utility model;

[0018] Figure 4 for Figure 3 A partial enlarged view of part A;

[0019] Figure 5 This is a schematic diagram of the connection between the turntable, the toggle lever and the pointed cone;

[0020] Figure 6 for Figure 5 The main cross-sectional diagram of

[0021] Figure 7 This is a schematic diagram of the pointed cone on the toggle rod being inserted into the coal mine sealing layer;

[0022] Figure 8 for Figure 7 A partial enlarged view of part B;

[0023] In the picture:

[0024] 1-combustion chamber, 2-feeding bin, 3-coal mine sealing layer, 4-lateral stirring mechanism, 5-circular cylinder, 6-connecting plate, 7-hydraulic cylinder, 9-drive motor, 10-main shaft, 11-turntable, 12-toggle rod, 13-cone, 14-flange. DETAILED DESCRIPTION

[0025] The present invention is further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following:

[0026] like Figures 3 to 6 As shown, a dredging mechanism for a boiler feed bin includes lateral stirring mechanisms 4, respectively arranged on the left and right sides of the feed bin 2, for stirring the coal mine sealing layer. The lateral stirring mechanism 4 located on the left side includes a circular cylinder 5 welded to the left side of the feed bin 2 and connected to the feed bin 2, and connecting plates 6 respectively welded to the upper and lower sides of the circular cylinder 5. A through hole connected to the feed bin 2 is opened in the left side wall of the feed bin 2, and the circular cylinder 5 is welded into the through hole. Both connecting plates 6 extend to the left side of the circular cylinder 5, and a hydraulic cylinder 7 is fixed between the extended ends; the two lateral stirring mechanisms 4 are arranged symmetrically about the feed bin 2.

[0027] The piston rod of the hydraulic cylinder 7 extends to the right, and a mounting plate is fixed on the extended end. A drive motor 9 is fixed on the right end face of the mounting plate. A main shaft 10 is connected to the output shaft of the drive motor 9. A turntable 11 that matches the inner cavity of the circular cylinder 5 is fixed on the right end face of the main shaft 10. A plurality of toggle rods 12 located in the circular cylinder 5 are welded on the right end face of the turntable 11. The plurality of toggle rods 12 are evenly welded on the turntable 11, and a pointed cone 13 is welded on the right end face of each toggle rod 12.

[0028] A fixing plate is fixed between the extended ends of the two connecting plates 6 , and the cylinder body of the hydraulic cylinder 7 passes through the fixing plate. A flange 14 is welded to the cylinder body of the hydraulic cylinder 7 , and the cylinder body of the hydraulic cylinder 7 is fixed to the fixing plate via the flange 14 .

[0029] The dredging mechanism also includes a controller, which is electrically connected to the hydraulic cylinder 7 and the drive motor 9 via a signal line. Workers can use the controller to control the production or retraction of the piston rod of the hydraulic cylinder 7, and can also control the start or shut down of the drive motor 9, which facilitates the workers' operation and has the characteristics of a high degree of automation.

[0030] When shoveling coal into the feed bin 2, due to the shoveling speed being too fast or the coal being too large, a large amount of coal will accumulate at the lower end of the feed bin 2, forming a coal blocking layer. The coal blocking layer prevents the subsequent coal from entering the combustion chamber of the boiler. At this time, the worker will clear the feed bin 2 as follows:

[0031] S1, control the piston rods of the hydraulic cylinders 7 of the two lateral stirring mechanisms 4 to extend, the piston rods drive the mounting plate to move toward the feed bin 2, the mounting plate drives the drive motor 9 to move toward the feed bin 2, the drive motor 9 drives the main shaft 10 and the turntable 11 to move synchronously toward the feed bin 2, the turntable 11 drives the toggle rod 12 to enter the feed bin 2, and the pointed cone 13 on the toggle rod 12 is inserted into the coal mine sealing layer, as shown in FIG. Figure 7-Figure 8 As shown;

[0032] S2. Start the drive motors 9 of the two lateral stirring mechanisms 4. The drive motors 9 drive the main shaft 10 to rotate. The main shaft 10 drives the turntable 11 to rotate. The turntable 11 drives the toggle lever 12 to rotate around the axis of the turntable 11. During the rotation, the toggle lever 12 stirs the coal mine blocking layer to evacuate the coal mine blocking layer. The evacuated coal mine falls into the combustion chamber 1 of the boiler. After a period of time, the feed bin 2 can be finally dredged.

[0033] S3. After the feed bin 2 is unblocked, the worker first controls the drive motor 9 to turn off, and then controls the piston rod of the hydraulic cylinder 7 to retract. The piston rod drives the mounting plate to move away from the feed bin 2. The mounting plate drives the drive motor 9, the spindle 10, the turntable 11, and the toggle rod 12 to move away from the feed bin 2. When the piston rod of the hydraulic cylinder 7 is fully retracted, the toggle rod 12 re-enters the circular cylinder 5 to prepare for subsequent use.

[0034] S4. After the toggle lever 12 is reset, the worker can continue to shovel the subsequent coal into the feed bin 2.

[0035] Among them, it can be seen from steps S1~S2 that workers only need to use the linkage cooperation of the hydraulic cylinder 7 and the drive motor 9 of the two lateral stirring mechanisms 4 to automatically evacuate the coal mine blocking layer blocked in the feed bin 2, thereby realizing automatic dredging of the feed bin 2, without the need for workers to use wooden sticks to dredge the coal mine blocking layer in the feed bin 2. This not only greatly reduces the work intensity of the workers, but also realizes the dredging of the coal mine blocking layer in a short time, thereby greatly improving the dredging efficiency of the feed bin 2.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dredging mechanism for a boiler feed bin, characterized by: It comprises lateral stirring mechanisms (4) respectively arranged on the left and right sides of the feed bin (2) for stirring the coal mine sealing layer. The lateral stirring mechanism (4) located on the left side comprises a circular cylinder (5) welded to the left side of the feed bin (2) and connected to the feed bin (2), and connecting plates (6) respectively welded to the upper and lower sides of the circular cylinder (5). Both connecting plates (6) extend to the left side of the circular cylinder (5), and a hydraulic oil cylinder (7) is fixed between the extended ends. The piston rod of the hydraulic cylinder (7) extends to the right, and a mounting plate is fixedly provided on the extended end. A driving motor (9) is fixedly provided on the right end surface of the mounting plate. The output shaft of the driving motor (9) is connected to a main shaft (10). A turntable (11) that matches the inner cavity of the circular cylinder (5) is fixedly provided on the right end portion of the main shaft (10). A plurality of toggle rods (12) located in the circular cylinder (5) are welded on the right end surface of the turntable (11), and a pointed cone (13) is welded on the right end portion of each toggle rod (12).

2. A dredging mechanism for a boiler feed bin according to claim 1, characterized in that: A fixed plate is fixed between the extended ends of the two connecting plates (6), the cylinder body of the hydraulic oil cylinder (7) passes through the fixed plate, a flange (14) is welded to the cylinder body of the hydraulic oil cylinder (7), and the cylinder body of the hydraulic oil cylinder (7) is fixed to the fixed plate via the flange (14).

3. The dredging mechanism for a boiler feed bin according to claim 1, characterized in that: A through hole communicating with the feed bin (2) is provided in the left side wall of the feed bin (2), and the circular cylinder (5) is welded in the through hole.

4. The dredging mechanism for a boiler feed bin according to claim 1, characterized in that: The two lateral stirring mechanisms (4) are arranged symmetrically with respect to the feed bin (2).

5. The dredging mechanism for a boiler feed bin according to claim 1, characterized in that: A plurality of toggle rods (12) are uniformly welded on the turntable (11).

6. The dredging mechanism for a boiler feed bin according to claim 1, characterized in that: The dredging mechanism also includes a controller, which is electrically connected to the hydraulic cylinder (7) and the drive motor (9) via a signal line.

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