Automatic cement clinker sampling device

Abstract

The utility model relates to an automatic cement clinker sampling device which is characterized in that a sampling pipe is inserted into the bottom of a hopper, the feeding end of the sampling pipe is positioned in the hopper, the discharging end of the sampling pipe penetrates through the hopper and extends downwards, a cover plate is arranged on a discharging opening of the sampling pipe, and the cover plate is connected with a turning plate assembly; an ash hopper is arranged in the middle of the rack below the guide rail, and a limiting assembly is arranged above a feeding port of the ash hopper; and when the hopper provided with the sampling pipe runs to directly face the feeding hole of the ash hopper, the turning plate assembly turns over under the limiting action of the limiting assembly to drive the cover plate to be opened. The device can realize automatic sampling without electric appliance driving control, and is simple in structure; when clinker in a rotary cement kiln falls into the hopper, part of the cement clinker falls into the sampling pipe, when the hopper runs to the position above the ash hopper, under the limiting effect of the limiting assembly, the turning plate assembly rotates to drive the cover plate to be opened, and after a discharging port of the sampling pipe is not blocked by the cover plate, the cement clinker in the sampling pipe falls into the ash hopper below; and automatic sampling is completed.

Description

Technical Field

[0001] The present application relates to the technical field of clinker sampling, and in particular to an automatic sampling device for cement clinker. Background Art

[0002] In the cement production process, large pieces of cement raw materials are crushed by raw material crushers, and the crushed cement raw materials are sent to dryers for drying, and then sent to ball mills for grinding, and then sent to rotary kilns for calcination into clinker, and the clinker is transported to the clinker warehouse for storage through zipper machines. In order to ensure the refined control of the quality of cement clinker, relevant quality inspection personnel are required to regularly perform manual sampling, sample preparation, testing and data analysis on the clinker on the zipper machine. However, manual sampling is greatly affected by the operating factors of workers, and the sampling is not representative. Moreover, since the zipper machine is always in motion, manual sampling has safety hazards. At present, some samplers have realized automation. For example, the invention patent with patent number CN114414296B discloses an automatic sampling device, in which a driving device is fixed on the zipper machine frame. The sampling device is similar to the structure of the digging arm and bucket of an excavator. The driving device drives the telescopic rods at various levels to control the movement angle of each digging arm and bucket, thereby controlling the bucket to take materials from the hopper. The above-mentioned sampling device needs to be controlled by a driving device and requires the cooperation of multiple components to realize the digging action. The structure is relatively complex and the cost is high. Utility Model Content

[0003] The utility model aims to solve the above problems, thereby providing a sampling device with simple structure and convenient sampling.

[0004] The utility model solves the above problems and adopts the following technical solutions:

[0005] A cement clinker automatic sampling device comprises a frame, a guide rail arranged on the frame and a plurality of hoppers running on the guide rail.

[0006] A sampling tube is inserted into the bottom of the hopper, the feed end of the sampling tube is located inside the hopper, the discharge end of the sampling tube extends downward through the hopper, a cover is provided on the discharge port of the sampling tube, and the cover is connected to a flap assembly; an ash hopper is provided in the middle of the frame below the guide rail, and a limit assembly is provided above the feed port of the ash hopper; when the hopper with the sampling tube runs to face the feed port of the ash hopper, the flap assembly contacts the limit assembly and then rotates to drive the cover to open.

[0007] Compared with the prior art, the utility model adopting the above technical solution has the following beneficial effects:

[0008] The device can realize automatic sampling without electrical drive control and has a simple structure. The sampling tube is inserted in the hopper. When the clinker in the cement rotary kiln falls into the hopper, part of the cement clinker falls into the sampling tube. When the hopper provided with the sampling tube runs above the ash hopper, the flap assembly is rotated under the limiting action of the limiting assembly, so that the flap assembly drives the cover plate to open. After the discharge port of the sampling tube loses the obstruction of the cover plate, the cement clinker in the sampling tube falls into the ash hopper below, thereby completing the automatic sampling.

[0009] As a preferred embodiment, a further technical solution of the utility model is:

[0010] The flap assembly includes at least one fixed lifting ear, a first connecting plate and a second connecting plate. The fixed lifting ear is fixed to the bottom surface of the hopper provided with the sampling tube. The fixed lifting ear is rotatably connected with a rotating shaft. The fixed ends of the first connecting plate and the second connecting plate are both fixedly sleeved on the rotating shaft. The cover plate is fixed on the free end of the first connecting plate, and the free end of the second connecting plate is in contact with the limiting assembly. Through the above structure, the second connecting plate rotates after being blocked by the limiting assembly, driving the first connecting plate fixed on the same rotating shaft to rotate, so that the cover plate fixed on the first connecting plate is separated from the discharge port of the sampling tube.

[0011] A counterweight assembly is fixed to the free end of the second connecting plate, and the counterweight assembly includes a roller shaft and a bearing. The roller shaft is fixed to the second connecting plate, and a bearing is sleeved on the outer side of the roller shaft. The outer ring of the bearing contacts the limit assembly, and the axial direction of the bearing is parallel to the axial direction of the rotating shaft. Through the above structure, after sampling, the second connecting plate loses the obstruction of the limit assembly and automatically rotates due to weight, driving the cover plate on the first connecting plate to cover the discharge port of the sampling tube, thereby realizing automatic control; the bearing is arranged to contact the limit assembly and roll relative to the limit assembly to avoid damage caused by hard contact between the second connecting plate and the limit assembly.

[0012] The limit assembly includes a bullnose fixed on a frame below the silo and a limit block fixed on the bullnose. The side of the limit block opposite to the running direction of the hopper is set as an inclined surface, and the inclined surface of the limit block first contacts the outer ring of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the discharge port of the sampling tube of the present application in an unopened state;

[0014] Figure 2 It is a front view of the discharge port of the sampling tube of the present application in the state of beginning to open;

[0015] Figure 3 It is a front view of the discharge port of the sampling tube of the present application in a fully opened state;

[0016] Figure 4 is a side view of the sampling device of the present application;

[0017] Figure 5 yes Figure 1 A partial enlarged view of part A.

[0018] In the figure: 1. hopper; 2. sampling tube; 21. cover plate; 3. flap assembly; 31. fixed lifting ear; 32. rotating shaft; 33. first connecting plate; 34. second connecting plate; 35. counterweight assembly; 351. roller shaft; 352. bearing; 4. limit assembly; 41. limit block; 42. bracket; 5. guide rail; 6. ash hopper; 7. frame. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0020] Reference Figure 1-5 The embodiment of the present application discloses an automatic sampling device for cement clinker, which is applied to a zipper machine. The zipper machine includes a frame 7, a guide rail 5 arranged on the frame 7, and a plurality of hoppers 1 running on the guide rail 5.

[0021] A sampling tube 2 perpendicular to the bottom plate of the hopper 1 is inserted at the bottom of one of the hoppers 1, the feed port of the sampling tube 2 is located inside the hopper 1, and the feed port of the sampling tube 2 is a narrow mouth, and the discharge port of the sampling tube 2 extends through the hopper 1 to the bottom of the hopper 1. Specifically, the length of the sampling tube 2 located in the hopper 1 is not less than two-thirds of the total length of the sampling tube 2, and a cover plate 21 is provided on the discharge port of the sampling tube 2, and a flap assembly 3 is connected to the lower side of the cover plate 21; an ash hopper 6 is provided in the middle of the frame 7 located below the guide rail 5, and a limiting assembly 4 is provided above the feed port of the ash hopper 6; when the hopper 1 provided with the sampling tube 2 runs to the point where the discharge port of the sampling tube 2 is directly opposite to the feed port of the ash hopper 6, the flap assembly 3 rotates after contacting the limiting assembly 4 and drives the cover plate 21 to open.

[0022] In the present embodiment, the flap assembly 3 includes at least one fixed lifting ear 31, a first connecting plate 33 and a second connecting plate 34. Preferably, the present embodiment includes two fixed lifting ears 31, two first connecting plates 33 and two second connecting plates 34. The two fixed lifting ears 31 are fixed to the bottom surface of the hopper 1 provided with the sampling tube 2. The two fixed lifting ears 31 are rotatably connected with a rotating shaft 32. Specifically, both ends of the rotating shaft 32 are inserted into the fixed lifting ears 31 on both sides. The rotating shaft 32 outside the two fixed lifting ears 31 has a threaded section, and a nut is sleeved on the threaded section to prevent the rotating shaft 32 from falling off from the fixed lifting ears 31. The fixed ends of the first connecting plate 33 and the second connecting plate 34 are fixedly sleeved on the rotating shaft 32. Specifically, the fixed ends of the first connecting plate 33 and the second connecting plate 34 are provided with openings, through which the first connecting plate 33 and the second connecting plate 34 are sleeved on the rotating shaft 32 between the two fixed hanging ears 31 and fixed by welding; the cover plate 21 is welded and fixed on the free ends of the two first connecting plates 33, and the lower end of the second connecting plate 34 is in contact with the limiting assembly 4. Through the above structure, the second connecting plate 34 rotates after being blocked by the limiting assembly 4, driving the first connecting plate 33 sleeved on the same rotating shaft 32 to rotate, so that the cover plate 21 on the first connecting plate 33 is separated from the discharge port of the sampling tube 2.

[0023] In this embodiment, the limiting assembly 4 includes a bracket 42 and a limiting block 41. The bracket 42 is fixed to the frame 7 below the silo. The extension direction of the bracket 42 is opposite to the running direction of the hopper 1. The bracket 42 passes through the side wall of the feed port of the ash hopper 6 and extends to the middle of the ash hopper 6. The limiting block 41 is welded and fixed to the bracket 42. Preferably, two limiting blocks 41 are provided, and the side of the limiting block 41 opposite to the running direction of the hopper 1 is set as an inclined surface; the free end of the second connecting plate 34 is fixed with a counterweight Component 35, the counterweight component 35 includes two roller shafts 351 and bearings 352, the free ends of the two second connecting members are provided with through holes, the roller shafts 351 are fixedly inserted in the through holes, so that the axial direction of the roller shaft 351 is perpendicular to the side of the second connecting plate 34, and the two bearings 352 are respectively sleeved on the roller shafts 351 on the outer sides of the two second connecting plates 34, the axial direction of the bearings 352 is parallel to the axial direction of the rotating shaft 32, and the inclined surface of the limit block 41 first contacts the outer ring of the bearing 352. Through the above structure, after sampling, the second connecting plate 34 loses the obstruction of the limit component 4 and automatically rotates due to weight, driving the cover plate 21 on the first connecting plate 33 to cover the discharge port of the sampling tube 2, and realizing automatic control of the cover plate 21 to cover the discharge port of the sampling tube 2; when the hopper 1 is running, the bearing 352 of the second connecting plate 34 contacts and rolls on the inclined surface, avoiding the second connecting plate 34 and the limit component 4 from being damaged by hard contact.

[0024] The device can realize automatic sampling without electrical drive control, and has a simple structure. It only needs to add a sampling tube 2, a flap assembly 3, a limit assembly 4 and an ash hopper 6 on the basis of the existing zipper machine, thereby saving the cost of replacing the machine. During installation, a through hole is opened on the bottom plate of one of the hoppers 1, and the aperture of the through hole is equal to the outer diameter of the sampling tube 2. Then, the sampling tube 2 is inserted and fixed in the through hole position and fixed by welding. A fixing lug 31 is welded on the bottom surface of the rear end hopper 1 at the welding position of the sampling tube 2, and the first connecting plate 33, the second connecting plate 34 and the nut are installed, and the counterweight assembly 35 is also Installed on the second connecting plate 34; fix the ash hopper 6 in the middle of the frame 7 below the guide rail 5, weld a bracket 42 on the crossbeam of the frame 7 on the side opposite to the traveling direction of the hopper 1, and fix a limit block 41 above the bracket 42 so that the lower side of the limit block 41 faces the feeding port of the ash hopper 6; preferably, the limit block 41 is arranged close to the side wall of the ash hopper 6 on the side opposite to the traveling direction of the hopper 1, so that the distance from the limit block 41 to the opposite side wall of the ash hopper 6 is lengthened, so that when the flap assembly 3 rotates, the cement clinker in the sampling tube 2 can fall into the center of the ash hopper 6; refer to the attached Figure 1-3 , the running track of the hopper 1 is set to the left, the right side of the limit block 41 is set to an inclined surface, the hopper 1 is connected to the cement rotary kiln above, and receives the cement clinker dropped from the cement rotary kiln. When the hopper 1 runs to the left on the guide rail, when the cement clinker falls into the hopper 1 provided with the sampling tube 2, part of the cement clinker falls into the sampling tube 2. When the hopper 1 runs to the top of the feed port of the ash hopper 6, the inclined surface of the limit block 41 contacts the bearing 352 provided on the second connecting plate 34, and the bearing 352 Rolling on the inclined plane causes the second connecting plate 34 to rotate counterclockwise, thereby causing the first connecting plate 33 to rotate counterclockwise, the cover plate 21 to separate from the discharge port of the sampling tube 2, and the cement clinker in the sampling tube 2 falls into the ash hopper 6 below, completing the sampling action; when the second connecting plate 34 loses the obstruction of the limit block 41, the weight of the counterweight assembly 35 causes the second connecting plate 34 to rotate clockwise, driving the first connecting plate 33 to rotate clockwise, so that the cover plate 21 covers the discharge port of the sampling tube 2 again.

[0025] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A cement clinker automatic sampling device, comprising a frame (7), a guide rail (5) arranged on the frame (7), and a plurality of hoppers (1) running on the guide rail (5), characterized in that: A sampling tube (2) is inserted into the bottom of a hopper (1), the feeding end of the sampling tube (2) is located inside the hopper (1), the discharging end of the sampling tube (2) passes through the hopper (1) and extends downward, a cover plate (21) is provided on the discharging port of the sampling tube (2), and the cover plate (21) is connected to a flap assembly (3); an ash hopper (6) is provided in the middle of a frame (7) located below a guide rail (5), and a limit assembly (4) is provided above the feeding port of the ash hopper (6); when the hopper (1) provided with the sampling tube (2) runs to face the feeding port of the ash hopper (6), the flap assembly (3) contacts the limit assembly (4) and rotates to drive the cover plate (21) to open.

2. The automatic sampling device for cement clinker according to claim 1, characterized in that: The flap assembly (3) comprises at least one fixed lifting ear (31), a first connecting plate (33) and a second connecting plate (34); the fixed lifting ear (31) is fixed to the bottom surface of a hopper (1) provided with a sampling tube (2); a rotating shaft (32) is rotatably connected to the fixed lifting ear (31); the fixed ends of the first connecting plate (33) and the second connecting plate (34) are both fixed to the rotating shaft (32); the cover plate (21) is fixed to the free end of the first connecting plate (33); and the free end of the second connecting plate (34) is in contact with the limit assembly (4).

3. The automatic sampling device for cement clinker according to claim 2 is characterized in that: A counterweight assembly (35) is fixed to the free end of the second connecting plate (34), the counterweight assembly (35) comprising a roller shaft (351) and a bearing (352), the roller shaft (351) being fixed to the second connecting plate (34), the bearing (352) being sleeved on the outer side of the roller shaft (351), the outer ring of the bearing (352) being in contact with the limit assembly (4), and the axial direction of the bearing (352) being parallel to the axial direction of the rotating shaft (32).

4. The automatic sampling device for cement clinker according to claim 3 is characterized in that: The limit assembly (4) comprises a bracket (42) fixed on a frame (7) below the silo and a limit block (41) fixed on the bracket (42). The side of the limit block (41) opposite to the running direction of the hopper is set as an inclined surface. The inclined surface of the limit block (41) first contacts the outer ring of the bearing (352).

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