Quantitative discharging device and coal detection system

Abstract

The utility model relates to the technical field of coal sample detection, and discloses a quantitative discharging device and a coal detection system, which comprise a material storage container and a material containing part, and the material containing part is switched to the material taking position and the material unloading position at the preset interval time, so that the preset amount of materials contained in the material containing part can be discharged out of the material outlet at the preset interval time. When the discharge port is located above the detection belt conveyor, the material is the coal sample, quantitative discharge of the coal sample is matched with the detection belt conveyor which conveys the coal sample at a constant speed, so that the coal sample can be quantitatively distributed on the detection belt conveyor, the sizes of all the plastic coal samples of the compression roller are consistent, and the detection precision of the coal sample is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of coal sample detection, in particular to a quantitative discharging device and a coal detection system. Background Art

[0002] Coal quality testing is a necessary process in the coal industry. In the currently commonly used coal quality rapid testing technology, a pressure roller and a coal quality rapid testing analyzer are set on the testing belt conveyor. The coal enters the feeding belt conveyor from the sampling machine, and is then transported to the discharge chute by the feeding belt conveyor, and enters the testing belt conveyor along the discharge chute. During the transportation of the testing belt conveyor, the coal sample is first rolled by the pressure roller for plasticity, and then the coal quality is analyzed by the coal quality rapid testing analyzer.

[0003] However, since the coal quality rapid test analyzer uses the optical detection principle for detection and analysis, it has high requirements for the consistency of the size of the coal sample. In the above-mentioned detection method, since the sampler is intermittently sampling and the amount of coal sampled each time is uncertain, the unloading chute intermittently outputs piles of coal samples, and the amount of each pile of coal samples is different, resulting in inconsistent sizes of the cake-shaped coal samples formed after plasticization by the pressure roller, affecting the detection accuracy. Utility Model Content

[0004] The purpose of the utility model is to overcome the problem in the prior art that the size of the coal cake samples formed after plasticization is inconsistent due to the inconsistency of the coal samples being output to the detection belt conveyor in an unquantified manner, and to provide a quantitative discharging device and a coal detection system. The quantitative discharging device can output the coal samples evenly so that the size of the coal cake samples formed after plasticization is consistent.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the utility model provides a quantitative discharging device, including: a material storage container, the material storage container has an inlet for material to enter and an outlet for material to discharge; and a material holding portion, the material holding portion is connected to the outlet, the material holding portion can be driven to switch between a material taking position and a material unloading position at predetermined intervals, the material holding portion can hold a predetermined amount of material inside the material storage container at the material taking position, and can discharge the held material to the outside of the quantitative discharging device at the unloading position.

[0006] Preferably, the material holding part is configured to switch between a material taking position and a material discharging position by rotating, and a plurality of material holding parts are evenly arranged along the rotation direction.

[0007] Preferably, the material storage container includes a temporary storage section and a feeding section which are interconnected from top to bottom, the feed port is connected to the temporary storage section, the feeding section is connected to the discharge port, the material holding portion is arranged in the feeding section, the material holding portion has a material holding cavity for holding materials, at the material taking position, the opening of the material holding cavity faces the outlet of the temporary storage section so as to be able to hold the materials in the temporary storage section, and at the unloading position, the opening of the material holding cavity faces the discharge port so as to be able to discharge the materials in the material holding cavity to the discharge port.

[0008] Preferably, the material holding portion is configured to switch between a material taking position and a material unloading position by rotation. During the rotation, the size of the fitting gap between the material holding portion and the feeding section is configured to prevent the material in the temporary storage section from entering the fitting gap; and / or the concave surface of the material holding cavity is an arc surface.

[0009] Preferably, the quantitative discharging device also includes a blocking part, which can be driven to switch between a blocking position and a releasing position. The blocking part can block the outlet of the temporary storage section in the blocking position, and can open the outlet of the temporary storage section in the releasing position to allow the material in the temporary storage section to fall into the material holding part.

[0010] Preferably, the blocking portion has a blocking surface, and in the blocking position, the blocking surface blocks the outlet of the temporary storage section, and in the releasing position, the blocking surface is away from the outlet of the temporary storage section.

[0011] Preferably, the blocking portion can be driven to rotate so as to switch between the blocking position and the releasing position by rotation, and a plurality of the blocking portions are evenly arranged along the rotation direction.

[0012] Preferably, the material holding portion and the sealing portion are formed as an integrated material feeding component, the material feeding component is a rotating body with a notch formed on the outer peripheral surface, the notch forms a material holding cavity, and the outer peripheral surface of the material feeding component forms a sealing surface.

[0013] Preferably, the feeding component has a plurality of material holding portions and a plurality of blocking portions, and the material holding portions and the blocking portions are alternately arranged around the circumference of the feeding component.

[0014] The second aspect of the utility model provides a coal detection system, comprising a detection belt conveyor and the above-mentioned quantitative discharging device, wherein the quantitative discharging device is located above the detection belt conveyor.

[0015] Through the above technical solution, the material first enters the storage container from the feed port. After a predetermined amount is stored in the storage container, the material holding part is driven, and the material is held by the material holding part located at the material taking position, and is driven by the material holding part to the unloading position, and then discharged from the discharge port. The material holding part switches to the material taking position and the unloading position at a predetermined interval, so that the predetermined amount of material held by the material holding part can be discharged to the outside of the discharge port at a predetermined interval. When the discharge port is located above the detection belt conveyor, the material is a coal sample. The quantitative discharge of the coal sample is combined with the detection belt conveyor with uniform speed conveyance, so that the coal sample can be quantitatively distributed on the detection belt conveyor, so that the size of all coal samples of the pressure roller plastic is consistent, thereby ensuring the detection accuracy of the coal sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the quantitative storage device and the detection belt conveyor of the utility model, wherein the upper material holding part is located at the material taking position, the lower material holding part is located at the material unloading position, and the blocking part is located at the release position;

[0017] Figure 2 yes Figure 1 A schematic diagram of the main structure of the feeding component;

[0018] Figure 3 is a schematic diagram of the front view structure of the quantitative storage device, wherein the upper blocking portion is located in the blocking position; and

[0019] Figure 4 It is a schematic diagram of the side structure of the quantitative storage device.

[0020] Description of Reference Numerals

[0021] 10. Material storage container; 11. Material inlet; 12. Material outlet; 13. Temporary storage section; 14. Material feeding section; 15. Material discharge section; 20. Material feeding component; 21. Material holding section; 211. Material holding cavity; 22. Sealing section; 221. Sealing surface; 30. Driving component; 31. Motor; 32. Rotating shaft; 40. Prompt component; 41. Material level meter; 42. Alarm light; 9. Detection belt conveyor. DETAILED DESCRIPTION

[0022] In the present invention, unless otherwise specified, the directional words such as "upper, lower," generally refer to the upper and lower directions shown in the drawings. "Inside, outside" refer to the inside and outside of the outline of the corresponding component.

[0023] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0024] See also Figures 1 to 4 As shown, the utility model provides a quantitative discharging device, comprising: a material storage container 10, the material storage container 10 having an inlet 11 for material to enter and an outlet 12 for material to be discharged; and a material holding portion 21, the material holding portion 21 is connected to the outlet 12, the material holding portion 21 can be driven to switch between a material taking position and a material unloading position at a predetermined interval time, the material holding portion 21 can hold a predetermined amount of material inside the material storage container 10 at the material taking position, and can discharge the held material to the outside of the quantitative discharging device at the unloading position.

[0025] In this embodiment, the material enters the storage container 10 from the feed port 11. After a predetermined amount of material is accumulated in the storage container 10, the material holding part 21 is driven to the material taking position. After the material holding part 21 is filled with a predetermined amount of material, the material holding part 21 is driven to the unloading position to discharge the material. When the material holding part 21 is driven to the material taking position and the unloading position at a predetermined interval, the predetermined amount of material contained in the material holding part 21 can be output at the same interval, so that the amount of material output each time is consistent. When the quantitative discharging device is located above the detection belt conveyor 9, the material is a coal sample. The quantitative output of the coal sample, combined with the uniform speed conveying of the detection belt conveyor 9, makes the amount of each pile of coal samples intermittently falling onto the detection belt conveyor 9 the same, and then makes the size of each pile of cake-shaped coal samples after plasticization by the roller consistent, thereby ensuring the detection accuracy of the coal sample.

[0026] Specifically, the material holding portion 21 can be driven to rotate or to move.

[0027] See also Figures 1 to 4 As shown, in some embodiments of the present invention, the material holding portion 21 is configured to switch between a material taking position and a material discharging position by rotating, and a plurality of material holding portions 21 are evenly arranged along the rotation direction.

[0028] In this embodiment, the material receiving part 21 rotates at a constant speed, and each material receiving part 21 discharges a predetermined amount of material when it rotates to the unloading position, so that multiple piles of material are output within one rotation of the material receiving part 21, thereby improving the material output efficiency. When the quantitative discharging device is applied to the coal sample detection system, it can improve the efficiency of coal sample output to the detection belt conveyor 9, thereby improving the coal sample detection efficiency.

[0029] See also Figures 1 to 4 As shown, in some embodiments of the utility model, the material storage container 10 includes a temporary storage section 13 and a feeding section 14 which are interconnected from top to bottom, the feed port 11 is connected to the temporary storage section 13, the feeding section 14 is connected to the discharge port 12, and the material holding portion 21 is arranged in the feeding section 14. The material holding portion 21 has a material holding cavity 211 for holding materials. At the material taking position, the opening of the material holding cavity 211 faces the outlet of the temporary storage section 13 so as to be able to hold the material in the temporary storage section 13. At the unloading position, the opening of the material holding cavity 211 faces the discharge port 12 so as to be able to discharge the material in the material holding cavity 211 to the discharge port 12.

[0030] In this embodiment, at the material taking position, the material in the temporary storage section 13 falls by gravity into the material holding cavity 211 of the material holding portion 21. In the process of the material holding portion 21 moving from the material taking position to the material unloading position, the material holding cavity 211 cooperates with the inner wall of the feeding section 14, and the inner wall of the feeding section 14 is located at the opening of the material holding cavity 211. The two form a cavity for accommodating the material. When the material holding portion 21 reaches the unloading position, the cooperation relationship between the material holding cavity 211 and the inner wall of the feeding section 14 disappears, and the cavity no longer exists. The material falls by gravity from the opening of the material holding cavity 211 to the discharge port 12 to be output from the quantitative discharge device.

[0031] Specifically, the feed port 11 is arranged at the top of the temporary storage section 13, and the top of the temporary storage section 13 can be open, and the open opening forms the feed port 11. The storage container 10 also includes a discharge section 15 located below the feeding section 14, and the discharge port 12 is arranged at the bottom of the discharge section 15, and the bottom of the discharge section 15 can be open, and the open opening forms the discharge port 12.

[0032] See also Figures 1 to 4 As shown, in some embodiments of the utility model, the material holding portion 21 is configured to switch between the material taking position and the material unloading position by rotation. During the rotation process, the matching gap size between the material holding portion 21 and the feeding section 14 is configured to prevent the material in the temporary storage section 13 from entering the matching gap.

[0033] In this embodiment, the material in the temporary storage section 13 enters the material holding cavity 211 due to gravity. To prevent the material from falling into the matching gap between the material holding portion 21 and the feeding section 14 and affecting the rotation of the material holding portion 21, the size of the matching gap is smaller than the minimum size of the material in the temporary storage section 13.

[0034] See also Figures 1 to 4 As shown, in some embodiments of the present invention, the concave surface of the material holding cavity 211 is an arc surface.

[0035] In this embodiment, when the material receiving portion 21 is located at the material taking position, the material in the temporary storage section 13 can slide down to the bottom along the concave surface of the material receiving cavity 211, promoting the accumulation of the material in the material receiving cavity 211. When the material receiving portion 21 is located at the material discharging position, the arc surface of the material receiving cavity 211 can form point contact or line contact with most of the material, reducing the contact area between the material receiving cavity 211 and the material, thereby reducing the friction between the two, and further promoting the material to fall off from the cavity wall of the material receiving cavity 211, avoiding material residue in the material receiving cavity 211.

[0036] See also Figures 1 to 4As shown, in some embodiments of the utility model, the quantitative discharging device also includes a blocking portion 22, which can be driven to switch between a blocking position and a releasing position. The blocking portion 22 can block the outlet of the temporary storage section 13 in the blocking position, and can open the outlet of the temporary storage section 13 in the releasing position, so that the material in the temporary storage section 13 falls into the material holding portion 21.

[0037] In this embodiment, when the material holding portion 21 leaves the material taking position, the blocking portion 22 blocks the outlet of the temporary storage section 13 to prevent the material in the temporary storage section 13 from falling, thereby ensuring that the amount of material discharged from the quantitative discharging device at each predetermined interval is the amount of material in the material holding cavity 211, thereby ensuring the consistency of the amount of material output intermittently.

[0038] See also Figures 1 to 4 As shown, in some embodiments of the present invention, the blocking portion 22 has a blocking surface 221. In the blocking position, the blocking surface 221 blocks the outlet of the temporary storage section 13. In the releasing position, the blocking surface 221 is away from the outlet of the temporary storage section 13.

[0039] In this embodiment, in the blocking position, the blocking portion 22 provides a supporting force for the material in the temporary storage section 13, so that the material in the temporary storage section 13 is located on the blocking surface 221, offsetting the gravity of the material itself and preventing the material from falling due to gravity; in the releasing position, the supporting force provided by the blocking portion 22 to the material in the temporary storage section 13 disappears, so that the material in the temporary storage section 13 falls due to gravity.

[0040] Specifically, the size of the blocking surface 221 is larger than the outlet size of the temporary storage section 13 so as to be able to block the outlet of the temporary storage section 13 .

[0041] See also Figures 1 to 4 As shown, in some embodiments of the present invention, the blocking portion 22 can be driven to rotate so as to switch between the blocking position and the releasing position by rotation, and a plurality of the blocking portions 22 are evenly arranged along the rotation direction.

[0042] In this embodiment, the blocking portion 22 rotates at a uniform speed. When each blocking portion 22 rotates to the blocking position, it blocks the material in the temporary storage end 13 , and cooperates with the multiple material holding portions 21 so that the material can only be transported and output through the material holding portion 21 .

[0043] See also Figures 1 to 4 As shown, in some embodiments of the utility model, the material holding portion 21 and the sealing portion 22 form an integrated feeding component 20, and the feeding component 20 is a rotating body with a notch formed on the outer peripheral surface, the notch is formed as a material holding cavity 211, and the outer peripheral surface of the feeding component 20 is formed as a sealing surface 221.

[0044] In this embodiment, when the feeding part 20 is driven, the material holding part 21 and the sealing part 22 are driven at the same time, so that the material taking and unloading of the material holding part 21 and the sealing and releasing of the sealing part 22 are coordinated with each other. On the one hand, the structure of the material holding part 21 and the sealing part 22 is simple, that is, multiple functions are realized through a simple structure; on the other hand, the number of driving parts 30 used to drive the material holding part 21 and the sealing part 22 is reduced, saving resources.

[0045] Specifically, the notch is an arc-shaped notch, corresponding to the arc surface of the material receiving cavity 211. The notch can be a groove formed on the wall surface of the rotating body, or can extend along the entire axial direction of the rotating body. The inner wall surface of the feeding section 14 is an arc surface adapted to the blocking surface 221, and the matching clearance between the material receiving portion 21 and the feeding section 14 is the clearance between the blocking surface 221 and the inner wall surface of the feeding section 14. Figure 4 As shown, the temporary storage section 13 protrudes from the temporary storage section 13 in the axial direction of the feeding component 20, preventing the material from entering the fitting gap between the end of the feeding component 20 and the inner wall of the feeding section 14. When the gap extends along the entire axial direction of the rotating body, the size of the fitting gap is smaller than the minimum size of the material in the temporary storage section 13. The inner wall of the storage container 10 and the feeding component 20 are both made of anti-sticking material, or are formed with an anti-sticking layer, such as galvanizing the inner wall of the storage container 10 and the surface of the feeding component 20, to prevent the material with a high water content from sticking to the inner wall of the storage container 10 and the surface of the feeding component 20, so as to achieve strict quantitative output of the material.

[0046] See also Figures 1 to 4 As shown, in some embodiments of the present invention, the feeding component 20 has a plurality of material holding portions 21 and a plurality of blocking portions 22 , and the material holding portions 21 and the blocking portions 22 are alternately arranged around the circumference of the feeding component 20 .

[0047] In this embodiment, during the rotation of the feeding component 20, when a material holding portion 21 leaves the material taking position, a blocking portion 22 enters the blocking position, and when the blocking portion 22 leaves the blocking position, the next material holding portion 21 enters the material taking position, and so on, alternatingly, so that the material holding portion 21 and the blocking portion 22 cooperate alternately, achieving the output of materials at the same interval time while ensuring that the amount of material output each time is the same.

[0048] Specifically, there are two material holding parts 21 and two sealing parts 22, and the two material holding parts 21 are arranged opposite to each other. When one material holding part 21 is located at the material taking position, the other material holding part 21 is located at the material discharging position. The time interval for the two material holding parts 21 to rotate to the material taking position and the time interval for the two material holding parts 21 to rotate to the material discharging position are the same; the two sealing parts 22 are arranged opposite to each other. When one sealing part 22 is located at the blocking position, the other sealing part 22 is located directly above the discharge port 12.

[0049] Specifically, when the blocking portion 22 rotates to the blocking position, the blocking surface 221 is located in the temporary storage section 13, and the blocking portion 22 lifts the material in the temporary storage section 13 through the blocking surface 221. The blocking portion 22 continues to rotate toward the release position, and the support force provided by the blocking portion 22 to the material in the temporary storage section 13 disappears. The material falls into the material holding cavity 211 under gravity. Through the falling distance combined with the gravity acceleration, the material falling onto the cavity wall of the material holding cavity 211 can generate impact force and disperse, thereby separating some of the adhered materials. During the uniform rotation of the feeding component 20, the blocking portion 22 can periodically lift the material in the temporary storage section 13 to improve the dispersion effect of the material.

[0050] See also Figures 1 to 4 As shown, in some embodiments of the utility model, the quantitative discharging device also includes a driving component 30 driven and connected to the feeding component 20, and the driving component 30 includes a rotating shaft 32 axially passing through the center of the feeding component 20 and a motor 31 connected to the rotating shaft 32.

[0051] In this embodiment, the motor 31 can achieve strict uniform rotation, ensuring that the interval time of the materials outputted by the material receiving portion 21 each time is the same.

[0052] Specifically, the motor 31 is located outside the feeding section 14 to save space inside the feeding section 14 .

[0053] See also Figures 1 to 4 As shown, in some embodiments of the utility model, the quantitative discharging device also includes a prompt component 40, the prompt component 40 includes a level meter 41 and an alarm light 42, the level meter 41 is arranged on the inner wall of the temporary storage section 13, the level meter 41 forms a predetermined vertical distance with the feeding section 14, the alarm light 42 is arranged on the outer wall of the temporary storage section 13, and the level meter 41 and the alarm light 42 are communicatively connected via a controller.

[0054] In this embodiment, the original position of the feeding component 20 is that the blocking portion 22 is in the blocking position. The material is gradually accumulated in the temporary storage section 13 under the support of the blocking portion 22. When the material is accumulated to the level meter 41, the level meter 41 generates a signal and sends the signal to the controller. After receiving the signal, the controller controls the alarm light 42 to light up. After the operator observes that the alarm light 42 is on, it is determined that the material in the temporary storage section 13 has accumulated to a predetermined amount, and the motor 31 is started, so that the motor 31 drives the feeding component 20 to rotate through the rotating shaft 32, thereby realizing the timed and quantitative output of the material.

[0055] The utility model further provides a coal detection system, comprising a detection belt conveyor 9 and the above-mentioned quantitative discharging device, wherein the quantitative discharging device is located above the detection belt conveyor 9 .

[0056] In this embodiment, the quantitative discharging device of the coal detection system has all the technical solutions and all the technical effects of the above-mentioned quantitative discharging device, which will not be repeated here.

[0057] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A quantitative discharging device, characterized in that: include: A material storage container (10), wherein the material storage container (10) has an inlet (11) for material to enter and an outlet (12) for material to exit; and A material holding portion (21), the material holding portion (21) being connected to the material discharge port (12), the material holding portion (21) being capable of being driven to switch between a material taking position and a material discharge position at predetermined intervals, the material holding portion (21) being capable of holding a predetermined amount of material inside the material storage container (10) at the material taking position, and being capable of discharging the held material to the outside of the quantitative discharge device at the material discharge position.

2. The quantitative discharging device according to claim 1, characterized in that: The material holding portion (21) is configured to switch between the material taking position and the material discharging position by means of rotation, and a plurality of the material holding portions (21) are evenly arranged along the rotation direction.

3. The quantitative discharging device according to claim 1, characterized in that: The material storage container (10) comprises a temporary storage section (13) and a feeding section (14) which are interconnected from top to bottom, the material inlet (11) is connected to the temporary storage section (13), the material feeding section (14) is connected to the material outlet (12), the material holding portion (21) is arranged in the material feeding section (14), the material holding portion (21) has a material holding cavity (211) for holding materials, at the material taking position, the opening of the material holding cavity (211) faces the outlet of the temporary storage section (13) so as to be able to hold the materials in the temporary storage section (13), and at the material unloading position, the opening of the material holding cavity (211) faces the material outlet (12) so as to be able to unload the materials in the material holding cavity (211) to the material outlet (12).

4. The quantitative discharging device according to claim 3, characterized in that: The material holding portion (21) is configured to switch between the material taking position and the material discharging position by means of rotation, and during the rotation process, the size of the matching gap between the material holding portion (21) and the material feeding section (14) is configured to prevent the material in the temporary storage section (13) from entering the matching gap; and / or, The concave surface of the material holding cavity (211) is a curved surface.

5. The quantitative discharging device according to claim 3, characterized in that: The quantitative discharging device further comprises a blocking portion (22), wherein the blocking portion (22) can be driven to switch between a blocking position and a releasing position, wherein the blocking portion (22) can block the outlet of the temporary storage section (13) in the blocking position, and can open the outlet of the temporary storage section (13) in the releasing position, so that the material in the temporary storage section (13) falls into the material holding portion (21).

6. The quantitative discharging device according to claim 5, characterized in that: The blocking portion (22) has a blocking surface (221). In the blocking position, the blocking surface (221) blocks the outlet of the temporary storage section (13). In the releasing position, the blocking surface (221) is away from the outlet of the temporary storage section (13).

7. The quantitative discharging device according to claim 6, characterized in that: The blocking portion (22) can be driven to rotate so as to switch between the blocking position and the releasing position by means of rotation, and a plurality of the blocking portions (22) are evenly arranged along the rotation direction.

8. The quantitative discharging device according to claim 7, characterized in that: The material holding portion (21) and the sealing portion (22) form an integrated material feeding component (20), and the material feeding component (20) is a rotating body with a notch formed on the outer peripheral surface, the notch forms the material holding cavity (211), and the outer peripheral surface of the material feeding component (20) forms the sealing surface (221).

9. The quantitative discharging device according to claim 8, characterized in that: The material feeding component (20) comprises a plurality of material receiving parts (21) and a plurality of blocking parts (22), and the material receiving parts (21) and the blocking parts (22) are alternately arranged around the circumference of the material feeding component (20).

10. A coal detection system, characterized in that: It comprises a detection belt conveyor (9) and a quantitative discharging device as claimed in any one of claims 1 to 9, wherein the quantitative discharging device is located above the detection belt conveyor (9).

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