Coal moisture detection device

Abstract

The utility model discloses a coal moisture detection device, which belongs to the technical field of detection equipment, and comprises a box body, the top of the box body is provided with a through-type feed hopper convenient for connection, the inner top wall of the box body is provided with a fixed box, the side wall of the fixed box is provided with a through-type hollow discharge chute, and the fixed box is communicated with the feed hopper; a fixing part of the rotating motor is fixed to the bottom of the fixing box, the fixing part of the rotating motor is arranged in the protection box, and the end of the protection box is fixed to the bottom of the fixing box; the circular plate is used for throwing pulverized coal and is rotationally connected with the inner side wall of the fixing box, four fixing blocks are further symmetrically arranged at the top of the circular plate, and an output shaft of the rotating motor penetrates through the bottom of the fixing box to be connected with the circular plate. According to the device, pulverized coal can be uniformly thrown, and the pulverized coal adhered to the inner wall of the box body can be cleaned and collected, so that the loss of the pulverized coal during moisture measurement is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, in particular to a coal moisture detection device. Background Art

[0002] Since the amount of moisture in coal seriously affects its combustion performance and calorific value, it is necessary to measure the moisture content of coal. Existing coal moisture detection devices generally crush the coal and spread it flat on the drying equipment to measure the weight change. Since the flat spreading will cause the coal powder to be heated unevenly during the drying process, the moisture detection data will have errors and the accuracy is not high.

[0003] After searching, for example (authorization announcement number CN220670152U) a device for detecting the moisture content of coal, including a shell, a controller, a sliding door, a visual window, a partition, a heating box, a heater and a lifting mechanism, a controller installed on the front side of the shell, a sliding door slidably connected to the front side of the shell, a visual window provided on the sliding door, a partition fixedly connected to the inner wall of the shell, a heating box fixedly connected between the inner left wall of the shell and the partition, a heater installed inside the heating box, and an electrical connection between the heater and the controller. This device solves the problem of the difficulty in drying the moisture content of the bottom of the coal when the existing equipment is used. However, when drying the coal powder, the device still spreads it flat on the equipment, causing the coal powder to be heated unevenly during drying, resulting in inaccurate moisture detection data, reducing the practicality of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a coal moisture detection device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a coal moisture detection device, comprising:

[0006] The box body has a through-type feed hopper on the top for easy connection, a fixed box is provided on the inner top wall of the box body, and a through-type hollow discharge trough is provided on the side wall of the fixed box, and the fixed box is connected to the feed hopper;

[0007] A rotating motor, wherein a fixing portion of the rotating motor is fixed to the bottom of the fixing box, the fixing portion of the rotating motor is arranged inside the protection box, and an end portion of the protection box is fixed to the bottom of the fixing box;

[0008] The circular plate used for scattering coal powder is rotatably connected to the inner wall of the fixed box. Four fixed blocks are symmetrically provided on the top of the circular plate. The output shaft of the rotating motor passes through the bottom of the fixed box and is connected to the circular plate.

[0009] As a preferred embodiment, a vertical box is welded to the side wall of the box body, and a mounting groove is provided on the side of the vertical box away from the box body. Three fans are installed inside the mounting groove at equal intervals, and a filter connected to the mounting groove is also provided on the outside of the fan.

[0010] As a preferred embodiment, an electric heating device is also fixed to the inner wall of the vertical box. The electric heating device is located at the air outlet of the fan, and a plurality of evenly distributed through holes are provided on the surface of the electric heating device. The through holes are connected to the box body through the vertical box.

[0011] As a preferred embodiment, a side box is fixed to the side of the box body away from the vertical box, two symmetrical mesh plates are installed on the inner wall of the side box, and an air outlet is provided on the top of the side box.

[0012] As a preferred embodiment, a linear motor that is easy to adjust is installed on the inner wall of the side box, and a connecting plate is welded to the moving part of the linear motor. The connecting plate is fixed to the side wall of the mounting plate through an embedded vibration motor, and a cleaning plate for cleaning the screen is connected to the other side of the mounting plate.

[0013] As a preferred embodiment, a collecting box for collecting coal powder generated by cleaning the mesh plate is further provided at the bottom of the side box, and the end of the collecting box is fixed to the bottom of the side box by provided bolts.

[0014] As a preferred embodiment, the bottom of the box is connected to a support base, a fixed frame is provided inside the support base, a drive motor is provided inside the fixed frame, and the output shaft of the drive motor passes through the bottom of the box and is connected to one end of the threaded rod.

[0015] As a preferred embodiment, the threaded rod is threadedly connected with a threaded block for facilitating lifting, the side wall of the threaded block is welded to the side wall of the scraper through a welded connecting rod, and the scraper is slidably connected to the inner wall of the box.

[0016] Compared with the prior art, the technical effects and advantages of this utility model are:

[0017] The coal moisture detection device is driven by a rotating motor to rotate a connected circular plate. The rotation of the circular plate can centrifugally scatter the coal powder entering through the feed hopper. Combined with a fixed box fixed to the top wall of the box body, a through-type material trough set on the side wall of the fixed box, and a fixed block welded to the top of the circular plate, the coal powder that needs to be dried inside the box body is evenly air-dried, so that it is heated more evenly and thoroughly, making the measurement data of the moisture content of the coal more accurate, thereby improving the practicality of the device.

[0018] The coal moisture detection device has a fixed frame embedded in the support base, and a drive motor is installed in the fixed frame. The output shaft of the drive motor passes through the bottom of the box and is connected to the threaded rod. The threaded rod is threadedly connected to a threaded block. The side wall of the threaded block is fixed to the side wall of the scraper through four welded connecting rods. The other side of the scraper slides with the inner wall of the box. The rotation of the drive motor cleans the dry coal powder adhering to the inner wall of the box and discharges it through a funnel-like collecting trough set at the bottom of the box, thereby reducing the error value when measuring the weight of the coal powder and further improving the reliability of the data.

[0019] The device solves the problem of uneven heating of dried coal powder when existing equipment is used, avoids the inaccurate moisture data of the top coal, and improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of a coal moisture detection device in an embodiment of the present utility model;

[0022] Figure 2 Utility-oriented innovation Figure 1 Half-section of the box in the middle AA direction;

[0023] Figure 3 This is a structural diagram of a vertical box in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the side box in an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure of the linear motor in an embodiment of the present utility model;

[0026] Figure 6 It is a structural schematic diagram of the lateral bottom in an embodiment of the present utility model.

[0027] Description of reference numerals:

[0028] In the figure: 1. Box body; 2. Support base; 3. Vertical box; 4. Filter; 5. Fan; 6. Feed hopper; 7. Air outlet; 8. Side box; 9. Fixed frame; 10. Drive motor; 11. Threaded rod; 12. Scraper; 13. Fixed box; 14. Round plate; 15. Rotating motor; 16. Electric heating device; 17. Screen; 18. Cleaning plate; 19. Linear motor; 20. Connecting plate; 21. Mounting plate; 22. Collection box; 23. Bolts. DETAILED DESCRIPTION

[0029] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0030] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0031] The connection method can be bonding, welding, bolt connection, etc., which shall be based on actual needs.

[0032] Example

[0033] like Figures 1 to 6 As shown, because the determination of pulverized coal moisture is not a determination of a small amount by weight, even if sampling inspection is carried out in time, there will still be a large proportion. When the pulverized coal is dried by this device, the percentage of pulverized coal lost is relatively low relative to the overall percentage, which does not affect the determination of the overall moisture data and is ignored by default.

[0034] This embodiment includes:

[0035] The box body 1 is connected to a support base 2 at the bottom of the box body 1. A connecting groove is provided on the top of the support base 2, which abuts against the bottom side wall of the box body 1, thereby completing the fixation of the box body 1. Four supporting legs are also fixed to the bottom of the support base 2, and the supporting legs are connected to the ground. A fixed circular plate that increases the contact area is welded at the bottom of the supporting legs. The fixed circular plate is connected to the ground, so that the support base 2 and the box body 1 always remain stable during operation, thereby improving the structural stability of the device.

[0036] The top of the box body 1 is provided with a through-type feed hopper 6 for easy connection, and the inner top wall of the box body 1 is provided with a fixed box 13. The top of the fixed box 13 is provided with a closed through groove, so that the feed hopper 6 and the fixed box 13 are connected. The side wall of the fixed box 13 is provided with a through-type hollow discharge chute, and the fixed box 13 is connected to the feed hopper 6, so that the coal powder entering the interior of the box body 1 through the feed hopper 6 can be gathered inside the fixed box 13;

[0037] The rotating motor 15 has a fixed portion fixed to the bottom of the fixed box 13, and the fixed portion of the rotating motor 15 is arranged inside the protective box. The end of the protective box is fixed to the bottom of the fixed box 13. The output shaft of the rotating motor 15 passes through the bottom of the fixed box 13 and is connected to the bottom of the circular plate 14. The side wall of the circular plate 14 is rotatably connected to the inner wall of the fixed box 13. A fixed block is provided on the top of the circular plate 14. The fixed block is tilted. The circular plate 14 and the fixed block are driven to rotate by the rotating motor 15, and the pulverized coal to be dried is evenly sprinkled inside the box 1 in conjunction with the provided material trough to facilitate drying.

[0038] A vertical box 3 is welded to one side of the box body 1. The side wall of the vertical box 3 is provided with a mounting groove. Three fans 5 are installed inside the mounting groove at equal intervals. A filter 4 connected to the mounting groove is provided on the outside of the fan 5. The filter 4 can filter dust in the air to avoid affecting the equipment inside the vertical box 3.

[0039] An electric heating device 16 is also fixed inside the vertical box 3. The side wall of the electric heating device 16 is provided with a through-hole arranged in a penetrating manner. The electric heating device 16 is located at the air outlet end of the fan 5. The air is heated by the electric heating device 16. Under the action of the fan 5 and the through-hole, the hot air is directly input into the interior of the box body 1, thereby drying the coal powder thrown inside the box body 1.

[0040] A side box 8 is fixed on the other side of the box body 1. An air outlet 7 is provided on the top of the side box 8. Two symmetrical mesh plates 17 are fixed inside the side box 8. An embedded linear motor 19 is installed between the two mesh plates 17. A connecting plate 20 is welded to the moving part of the linear motor 19. A vibration motor is fixed inside the connecting plate 20. Both ends of the vibration motor are connected to mounting plates 21. A cleaning plate 18 is also fixed on the opposite side of the mounting plate 21. The moving part of the linear motor 19 drives the connected cleaning plate 18 to slide with the mesh plate 17, and cooperates with the work of the vibration motor to clean the coal powder blocked and adsorbed in the mesh of the mesh plate 17. A collection port is also provided at the bottom of the side box 8.

[0041] A collecting box 22 is also connected to the bottom of the side box 8, and the collecting box 22 is fixed to the bottom of the side box 8 by means of provided bolts 23, so that the cleaned pulverized coal is collected through the collecting box 22, thereby reducing the error in the measurement of the moisture content of the pulverized coal, making the data more accurate, and improving the reliability of the device.

[0042] A fixed frame 9 is provided at the bottom of the support seat 2, and a drive motor 10 is provided inside the fixed frame 9. The output shaft of the drive motor 10 is connected to the threaded rod 11, and the threaded rod 11 is threadedly connected to a threaded block. Four connecting rods are welded to the side wall of the threaded block. The other end of the connecting rod is welded to the side wall of the scraper 12, and the other side of the scraper 12 is slidably connected to the inner wall of the box body 1. By controlling the rotation of the output shaft of the drive motor 10, the scraper 12 is driven to move, and the coal powder adhering to the inner wall of the box body 1 is cleaned, thereby further reducing the loss of the dried coal powder and improving the accuracy of the moisture weight change.

[0043] The setting of the fixed frame 9 and the protective box is to prevent coal powder from entering the interior of the equipment through the air when the equipment is in use and affecting the equipment. The setting of the fixed frame 9 and the protective box does not affect the normal heat dissipation of the equipment when it rotates, and both are provided with corresponding heat dissipation structures.

[0044] The fan 5, drive motor 10, rotating motor 15, vibration motor, electric heating device 16 and linear motor 19 are all conventional instruments. Their working principles, sizes and models are irrelevant to the functions of this application, so they will not be described in detail; Vibration motor: The vibration motor is a group of adjustable eccentric blocks installed at both ends of the rotor shaft, and the centrifugal force generated by the high-speed rotation of the shaft and eccentric blocks is used to obtain the exciting force, so that the connected cleaning plate 18 vibrates during the movement, thereby improving the effect of cleaning the mesh plate 17; The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technical personnel in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention no longer explains the control method and circuit connection in detail.

[0045] How it works

[0046] When using this coal moisture detection device, the pulverized coal to be processed is fed into the interior of the housing 1 through the feed hopper 6. The output shaft of the rotary motor 15 is controlled to rotate, driving the connected circular plate 14 to rotate. The pulverized coal is then thrown out through the trough provided on the side of the fixed box 13. The electric heating device 16 inside the vertical box 3 is simultaneously started to operate, heating the air inside the vertical box 3. The air is then transported into the interior of the housing 1 through the through-holes in conjunction with the rotation of the fan 5. The pulverized coal is then thrown out by the circular plate 14 to complete the drying of the pulverized coal.

[0047] A side box 8 is fixed to the other side of the box body 1. Two mesh plates 17 are installed in the side box 8. A linear motor 19 is fixed to the inner wall of the side box 8 between the mesh plates 17. A connecting plate 20 is fixed to the moving part of the linear motor 19. The connecting plate 20 is fixed to the mounting plate 21 through an embedded vibration motor. A cleaning plate 18 is connected to the other side of the mounting plate 21. The movement of the moving part of the linear motor 19 is controlled to drive the cleaning plate 18 and the mesh plates 17 to slide, thereby cleaning the mesh inside the mesh plates 17 and collecting the cleaned coal powder through a provided collection box 22.

[0048] Finally, the output shaft of the control driving motor 10 rotates, driving the threaded rod 11 to rotate. The threaded rod 11 drives the threaded block connected by the thread to move. The threaded block is fixed to the scraper 12 through a welded connecting rod. The side wall of the scraper 12 slides with the inner wall of the box body 1, thereby cleaning the inner wall of the box body 1 and discharging it through the discharge port set on the inner bottom wall of the box body 1.

[0049] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal moisture detection device, characterized in that: include: A box body (1), the top of the box body (1) is provided with a through-type feed hopper (6) for easy connection, the inner top wall of the box body (1) is provided with a fixed box (13), the side wall of the fixed box (13) is provided with a through-type hollowed-out discharge chute, and the fixed box (13) is communicated with the feed hopper (6); A rotating motor (15), wherein a fixing portion of the rotating motor (15) is fixed to the bottom of the fixing box (13), the fixing portion of the rotating motor (15) is arranged inside the protection box, and an end portion of the protection box is fixed to the bottom of the fixing box (13); A circular plate (14) for scattering coal powder is rotatably connected to the inner wall of the fixed box (13). Four fixed blocks are symmetrically provided on the top of the circular plate (14). The output shaft of the rotating motor (15) passes through the bottom of the fixed box (13) and is connected to the circular plate (14).

2. The coal moisture detection device according to claim 1, characterized in that: A vertical box (3) is welded to the side wall of the box body (1), and a mounting groove is provided on a side of the vertical box (3) away from the box body (1). Three fans (5) arranged at equal intervals are installed inside the mounting groove, and a filter (4) connected to the mounting groove is also provided on the outside of the fan (5).

3. The coal moisture detection device according to claim 2, characterized in that: An electric heating device (16) is also fixed to the inner wall of the vertical box (3), and the electric heating device (16) is located at the air outlet end of the fan (5). A plurality of evenly spaced through holes are provided on the surface of the electric heating device (16), and the through holes are connected to the inside of the box body (1) through the vertical box (3).

4. The coal moisture detection device according to claim 3, characterized in that: A side box (8) is fixed to the side of the box body (1) away from the vertical box (3), two symmetrical mesh plates (17) are installed on the inner wall of the side box (8), and an air outlet (7) is provided on the top of the side box (8).

5. The coal moisture detection device according to claim 4, characterized in that: The inner wall of the side box (8) is installed with a linear motor (19) that is easy to adjust. The moving part of the linear motor (19) is welded with a connecting plate (20). The connecting plate (20) is fixed to the side wall of the mounting plate (21) through the embedded vibration motor. The other side of the mounting plate (21) is connected to a cleaning plate (18) for cleaning the mesh plate (17).

6. The coal moisture detection device according to claim 5, characterized in that: The bottom of the side box (8) is also provided with a collection box (22) for collecting coal powder generated by cleaning the mesh plate (17), and the end of the collection box (22) is fixed to the bottom of the side box (8) by a provided bolt (23).

7. The coal moisture detection device according to claim 1, characterized in that: The bottom of the box body (1) is connected to a support base (2), a fixing frame (9) is provided inside the support base (2), a driving motor (10) is provided inside the fixing frame (9), and an output shaft of the driving motor (10) passes through the bottom of the box body (1) and is connected to one end of a threaded rod (11).

8. The coal moisture detection device according to claim 7, characterized in that: The threaded rod (11) is threadedly connected to a threaded block for facilitating lifting, and the side wall of the threaded block is welded to the side wall of the scraper (12) through a welded connecting rod, and the scraper (12) is slidably connected to the inner wall of the box body (1).

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