Pulverized coal humidity detection system

Abstract

The utility model relates to the technical field of pulverized coal humidity detection, in particular to a pulverized coal humidity detection system which comprises a detection box and a heating layer, the heating layer and a control assembly are installed in the detection box, and a drying cylinder is arranged in the detection box; the coal powder drying device has the beneficial effects that the weighing sensor at the bottom of the mounting plate can weigh coal powder which is not dried in the drying cylinder for the first time, weighing data are displayed on the display screen, the electric push rod is started to drive the drying cylinder to retract to the bottom to abut against the top of the displacement sensor, and the cover plate is closed; a displacement sensor transmits information to a control assembly to control a heating layer to be started to heat and dry the interior of the detection box, after drying is completed, an electric push rod is started again to extend upwards to lift a drying cylinder to the top of the detection box, and at the moment, a weighing sensor weighs the pulverized coal again; the problem that the humidity detection work of pulverized coal is tedious and inconvenient due to the fact that multiple times of weighing and transferring are needed in the humidity detection process of the pulverized coal is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal powder humidity detection, in particular to a coal powder humidity detection system. Background Art

[0002] Coal powder humidity refers to the amount of water contained in coal powder, which is one of the basic conditions for coal powder molding. The humidity of coal powder has a great influence on the molding effect and the quality of the finished product. Too high humidity will cause the coal blocks after molding to crack and deform easily, while too low humidity will increase the difficulty of molding and reduce the quality of the finished product. The methods for measuring coal powder humidity include drying method, microwave method, capacitance method, etc. Among them, the drying method is the most commonly used method.

[0003] In the prior art, when testing the humidity of coal powder, a portion of the coal powder is first taken, weighed, and placed in a drying oven for drying. The coal powder is dried to a constant weight at a certain temperature, the dried coal powder is taken out and weighed again, and then the moisture content is calculated based on the mass difference to complete the detection of the humidity of the coal powder.

[0004] However, the process of measuring the humidity of coal powder requires multiple weighing and transfers, which makes the humidity detection of coal powder cumbersome and inconvenient, and requires workers to perform repeated operations, which is time-consuming and laborious. Utility Model Content

[0005] The utility model aims to provide a coal powder humidity detection system to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a coal powder humidity detection system, including a detection box and a heating layer,

[0007] A heating layer and a control component are installed inside the detection box, a drying cylinder is arranged inside the detection box, a cover plate is installed on the top of the detection box, exhaust holes are equidistantly provided on the upper side of the detection box, a connecting cover is plugged into one side of the drying cylinder, and evaporation holes are provided inside the connecting cover.

[0008] Preferably, a weighing mechanism is provided at the bottom of the drying cylinder, and the weighing mechanism comprises a connecting sleeve on the outside of the drying cylinder, and a threaded connecting column is installed at the bottom of the connecting sleeve.

[0009] Preferably, the interior of the threaded connection column is threadedly connected to the threaded rod, the bottom of the threaded rod is fixed to a mounting plate, and a weighing sensor is connected to the bottom of the mounting plate.

[0010] Preferably, the bottom of the weighing sensor is connected to the top of the electric push rod, one side of the weighing sensor is in contact with the displacement sensor, and the outer sides of the electric push rod and the displacement sensor are both connected to the detection box.

[0011] Preferably, a uniform drying mechanism is provided on the outside of the drying cylinder, and the uniform drying mechanism includes a connecting layer connected to the outer wall of the drying cylinder, and the outer side of the drying cylinder is rotatably connected to a connecting groove provided inside the connecting sleeve through the connecting layer.

[0012] Preferably, a transmission gear ring is installed on one side of the drying cylinder, and the outer side of the transmission gear ring is meshed with the transmission gear. A drive motor is installed on one side of the detection box, and one side of the drive motor is installed with the transmission gear ring through a coupling.

[0013] Preferably, a filter plate is installed on one side of the connecting cover, and a display screen, control buttons and a warning light are installed on the outside of the detection box.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model proposes a coal powder humidity detection system. The weighing sensor at the bottom of the mounting plate will carry out the first weighing of the undried coal powder inside the drying drum, and display the weighing data on the display screen. When the electric push rod is started to drive the drying drum to retract to the bottom, it will abut against the top of the displacement sensor. The cover plate is closed, and the displacement sensor transmits information to the control component to control the start of the heating layer to heat and dry the inside of the detection box. After the drying is completed, the electric push rod is started again to extend upward to lift the drying drum to the top of the detection box. At this time, the weighing sensor weighs the coal powder again, which solves the problem that the humidity detection of the coal powder needs to be carried out multiple times of weighing and transfer in the process of the humidity detection of the coal powder, which makes the humidity detection of the coal powder cumbersome and inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the drying drum of the utility model;

[0019] Figure 4 It is a schematic diagram of the side view structure of the drying drum of the utility model.

[0020] In the figure: 1. detection box; 2. heating layer; 3. drying cylinder; 4. control component; 101. cover plate; 102. exhaust hole; 301. connecting cover; 302. evaporation hole; 5. weighing mechanism; 501. connecting sleeve; 502. threaded connecting column; 503. threaded rod; 504. mounting plate; 505. weighing sensor; 506. electric push rod; 507. displacement sensor; 6. uniform drying mechanism; 601. connecting layer; 602. connecting groove; 603. transmission gear ring; 604. transmission gear; 605. driving motor; 606. filter plate; 7. display screen; 701. control button; 702. warning light. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0022] See also Figure 1-Figure 3 The utility model provides a technical solution: a coal powder humidity detection system, including a detection box 1 and a heating layer 2,

[0023] A heating layer 2 and a control component 4 are installed inside the detection box 1, a drying drum 3 is arranged inside the detection box 1, a cover plate 101 is installed on the top of the detection box 1, exhaust holes 102 are equidistantly opened on the upper side of the detection box 1, a connection cover 301 is plugged into one side of the drying drum 3, and an evaporation hole 302 is opened inside the connection cover 301;

[0024] A weighing mechanism 5 is provided at the bottom of the drying drum 3, and the weighing mechanism 5 includes a connecting sleeve 501 on the outside of the drying drum 3, a threaded connecting column 502 is installed at the bottom of the connecting sleeve 501, the inside of the threaded connecting column 502 is threadedly connected to the threaded rod 503, the bottom of the threaded rod 503 is fixed to the mounting plate 504, and a weighing sensor 505 is connected to the bottom of the mounting plate 504, the bottom of the weighing sensor 505 is connected to the top of the electric push rod 506, one side of the weighing sensor 505 is abutted against the displacement sensor 507, the weighing sensor 505 is a sensor with a model of HYLF-010-2, the displacement sensor 507 is a sensor with a model of LT20, and the outer sides of the electric push rod 506 and the displacement sensor 507 are both connected to the detection box 1.

[0025] In specific implementation, according to Figures 1 to 3In order to facilitate the rapid completion of the humidity detection of the coal powder, the cover plate 101 on the top of the detection box 1 is opened, and a command is sent to the control component 4 through the control button 701 to control the start of the electric push rod 506, and the electric push rod 506 pushes the drying cylinder 3 upward until the drying cylinder 3 is pushed out of the detection box 1. The operator rotates and removes the drying cylinder 3, and opens the connecting cover 301 to pour the sample coal powder into the drying cylinder 3 and then closes the connecting cover 301. The installation of the drying cylinder 3 is completed through the threaded connection column 502 at the bottom of the connecting sleeve 501 and the threaded rod 503 at the top of the mounting plate 504. At this time, the weighing sensor 505 at the bottom of the mounting plate 504 will weigh the coal powder inside the drying cylinder 3 for the first time, and display the weighing data on the display screen 7;

[0026] The electric push rod 506 is started to drive the drying cylinder 3 to retract until the bottom of the weighing sensor 505 abuts against the top of the displacement sensor 507, and then the cover 101 is closed. The displacement sensor 507 transmits information to the control component 4 to control the start of the heating layer 2 to heat the inside of the detection box 1. The heated heat will be transmitted to the inside through the drying cylinder 3 to dry the coal powder. The water vapor formed during drying will escape to the inside of the detection box 1 through the evaporation hole 302, and finally be discharged from the exhaust hole 102. After the drying of the coal powder is completed, the electric push rod 506 is started again to extend upward to lift the drying cylinder 3 to the top of the detection box 1. At this time, the weighing sensor 505 weighs the coal powder again, and compares and displays the weighing data on the display screen 7, and obtains the humidity data after calculation through the calculation module in the control component 4. The coal powder humidity detection system can quickly complete the weighing of the coal powder before drying, as well as the weighing of the coal powder after drying, and the operation is time-saving and convenient. Embodiment 2

[0027] See also Figure 2-Figure 4 On the basis of the first embodiment, in order to realize the drying operation of the pulverized coal: a uniform drying mechanism 6 is arranged on the outside of the drying cylinder 3, and the uniform drying mechanism 6 includes a connecting layer 601 connected to the outer wall of the drying cylinder 3, and the outer side of the drying cylinder 3 is rotatably connected to the connecting groove 602 opened inside the connecting sleeve 501 through the connecting layer 601, and a transmission gear ring 603 is installed on one side of the drying cylinder 3, and the outer side of the transmission gear ring 603 is meshed with the transmission gear 604, and a driving motor 605 is installed on one side of the detection box 1, and one side of the driving motor 605 is installed with the transmission gear ring 603 through a coupling, and a filter plate 606 is installed on one side of the connecting cover 301, and a display screen 7, a control button 701 and a warning light 702 are installed on the outside of the detection box 1.

[0028] In specific implementation, according to Figure 2-Figure 4In order to speed up the drying speed of the coal powder in the drying drum 3, when the electric push rod 506 drives the weighing sensor 505 to abut against the displacement sensor 507, the bottom of the transmission gear ring 603 on one side of the drying drum 3 will be plugged into the transmission gear 604, and the driving motor 605 will be started. The driving motor 605 drives the transmission gear 604 to rotate and mesh with the top transmission gear ring 603 through the coupling on one side, thereby driving the drying drum 3 installed with the transmission gear ring 603 to rotate under the rotation of the connecting layer 601 and the connecting groove 602 inside the connecting sleeve 501, driving the coal powder to turn over and dry, so that the coal powder can be dried quickly and evenly. At the same time, a filter plate 606 is installed at the evaporation hole 302 of the drying drum 3 to prevent the coal powder from clogging the evaporation hole 302 and affecting the subsequent detection data. The warning light 702 is used to remind the operator that the drying work of the detection box 1 has been completed. The coal powder humidity detection system is provided with a uniform drying mechanism 6, which can quickly and evenly dry the coal powder inside the drying drum 3, saving detection time.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal powder humidity detection system, comprising a detection box (1) and a heating layer (2), characterized in that: A heating layer (2) and a control component (4) are installed inside the detection box (1), a drying cylinder (3) is arranged inside the detection box (1), a cover plate (101) is installed on the top of the detection box (1), exhaust holes (102) are equidistantly provided on the upper side of the detection box (1), a connecting cover (301) is plugged into one side of the drying cylinder (3), and an evaporation hole (302) is provided inside the connecting cover (301).

2. A coal powder humidity detection system according to claim 1, characterized in that: A weighing mechanism (5) is provided at the bottom of the drying cylinder (3), and the weighing mechanism (5) comprises a connecting sleeve (501) on the outside of the drying cylinder (3), and a threaded connecting column (502) is installed at the bottom of the connecting sleeve (501).

3. A coal powder humidity detection system according to claim 2, characterized in that: The threaded connection column (502) is threadedly connected to the threaded rod (503) inside, the bottom of the threaded rod (503) is fixed to the mounting plate (504), and the bottom of the mounting plate (504) is connected to a weighing sensor (505).

4. A coal powder humidity detection system according to claim 3, characterized in that: The bottom of the weighing sensor (505) is connected to the top of the electric push rod (506), one side of the weighing sensor (505) is in contact with the displacement sensor (507), and the outer sides of the electric push rod (506) and the displacement sensor (507) are both connected to the detection box (1).

5. A coal powder humidity detection system according to claim 2, characterized in that: A uniform drying mechanism (6) is arranged on the outside of the drying cylinder (3), and the uniform drying mechanism (6) comprises a connecting layer (601) connected to the outer wall of the drying cylinder (3), and the outer side of the drying cylinder (3) is rotatably connected to a connecting groove (602) provided inside the connecting sleeve (501) via the connecting layer (601).

6. A coal powder humidity detection system according to claim 5, characterized in that: A transmission gear ring (603) is installed on one side of the drying cylinder (3), and the outer side of the transmission gear ring (603) is meshed with a transmission gear (604). A drive motor (605) is installed on one side of the detection box (1), and one side of the drive motor (605) is installed with the transmission gear ring (603) via a coupling.

7. A coal powder humidity detection system according to claim 1, characterized in that: A filter plate (606) is installed on one side of the connection cover (301), and a display screen (7), a control button (701) and a warning light (702) are installed on the outside of the detection box (1).

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