Online coal sample drying equipment

Abstract

The utility model relates to the technical field of coal sample detection and drying, and discloses online coal sample drying equipment which comprises a workbench, a fixing frame is arranged on the workbench, and a sliding block sliding in the vertical direction is installed on the fixing frame. The sliding block is fixedly connected with a supporting plate, a second motor is fixed to the supporting plate, and an output shaft of the second motor is coaxially and fixedly connected with a rotating shaft downwards. A fixed plate is fixedly arranged on the rotating shaft, and a vertical rake rod is fixedly arranged on the fixed plate; a round groove is fixedly formed in the workbench, and a sample disc is in limited sliding fit in the round groove; a cover plate is movably mounted at the top opening of the sample disc; a driving part for driving the cover plate to move up and down is arranged on the rotating shaft; the driving piece is in transmission connection with the cover plate, and the rake rod slidably penetrates through the cover plate and penetrates into the sample disc. The rake rod penetrates through the cover plate, and meanwhile, the driving piece for driving the cover plate to move up and down is arranged on the rotating shaft, so that when drying is finished, the cover plate can push down a coal sample on the rake rod, the coal sample is prevented from being left on the rake rod, and the influence on next coal sample detection is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal sample detection drying technical field, especially relate to a coal sample on -line drying equipment. BACKGROUND

[0002] The detection of coal sample generally needs to detect the content of sulfur, ash content, volatile content and other parameters in the coal sample, and the coal sample needs to be dried before detection to prevent the moisture content of the coal sample from changing during the analysis test and affecting the data of the analysis test.

[0003] The coal sample rake coal drying device disclosed in the patent No. CN220136000U comprises an oven body, a heater, a sample disc and a stirring assembly; the bottom of the oven body is fixedly installed with the heater, the top of the heater is placed with the sample disc, the top of the oven body is fixedly connected with a fixed plate, the fixed plate is fixedly and penetratively installed with a bearing, the bearing is fixedly sleeved with a connecting plate, the top end face of the connecting plate is fixedly connected with, the bottom end of the connecting plate is fixedly connected with a sliding sleeve, the sliding sleeve is slidably connected with a sliding block, the bottom end face of the sliding block is fixedly connected with a sliding rod, the bottom of the sliding sleeve is detachably connected with a bottom cover, and the sliding rod extends downward through the bottom cover; the bottom end of the sliding rod is detachably connected with a fixed block, the outer surface of the fixed block is fixedly connected with a coal sample rake, and the sliding rod is movably sleeved with a spring below the bottom cover; the sidewall of the sliding sleeve is provided with a bolt, and the sliding rod is provided with a bolt hole matched with the bolt.

[0004] Based on the above technical features, the problem is that: in the prior art, after drying the coal sample, the rake teeth on the coal sample target are easy to stick to the coal sample, which can affect the detection of the next coal sample if not cleaned in time.

[0005] Therefore, it is necessary to solve the above problems by using a coal sample on-line drying equipment. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a coal sample on-line drying equipment to solve the problems in the background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of coal sample on-line drying equipment, including workbench, fixedly arranged fixed frame is set on the workbench, sliding block is installed on the fixed frame along vertical direction;The sliding block is fixedly connected with support plate, second motor is fixedly installed on the support plate, and the output shaft of the second motor is coaxially fixedly connected with the vertical rotation axis downwards;Fixedly set fixed plate is set on the rotation axis, and vertical rake rod is fixedly set on the fixed plate;Round groove is fixedly set on the workbench, and sample disc is limitedly slidably matched in the round groove;The top opening of the sample disc is movably installed with cover plate, and driving member for driving the cover plate to move up and down is set on the rotation axis;Driving member is connected with cover plate, and rake rod is slidably penetrated through cover plate and enters into sample disc.

[0008] Preferably, the driving member includes a first spring and a square slide rod; the first spring is sleeved on the rotation axis, and is fixedly arranged between the fixed plate and the cover plate; a square insertion slot is formed in the bottom end of the rotation axis along the axial direction, the slide rod is inserted into the insertion slot and is limitedly slidably matched with the insertion slot; the cover plate is fixedly connected with the slide rod.

[0009] Preferably, a heating plate is laid on the inner wall of the round groove, and the heating plate is clamped between the round groove and the sample disc.

[0010] Preferably, a plurality of limiting blocks are fixedly installed on the inner wall of the round groove, and the plurality of limiting blocks are uniformly distributed along the circumference of the round groove; a plurality of limiting sliding grooves corresponding to the limiting blocks are formed in the outer wall of the sample disc, and each limiting block is limitedly slidably matched with the corresponding limiting sliding groove.

[0011] Preferably, a first motor is fixedly installed on the fixed frame, the output shaft of the first motor is coaxially fixedly connected with a lead screw, and the lead screw is threadedly connected with the sliding block; the sliding block is limitedly slidably matched with the fixed frame.

[0012] Preferably, a plurality of vertical push rods are slidably installed on the workbench, and the plurality of push rods are uniformly distributed along the circumference of the sample disc; the top end of each push rod is slidably penetrated through the workbench and slidably penetrates into the round groove to abutingly transmit with the bottom of the sample disc; a second spring is sleeved on each push rod, the top end of each second spring is fixedly connected with the workbench, and the bottom end of each second spring is fixedly connected with the push rod.

[0013] The utility model discloses the rake rod penetrates the cover plate, and at the same time, driving member for driving the cover plate to move up and down is set on the rotation axis, so that when ending drying, the cover plate can push the coal sample on the rake rod to fall, to prevent the coal sample remaining on the rake rod, reduce the influence on the next coal sample detection. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram for the utility model embodiment one.

[0015] Figure 2 It is a partial cross-sectional view schematic diagram of the embodiment one of the utility model.

[0016] Figure 3 It is a round groove schematic diagram of the embodiment one of the utility model.

[0017] Figure 4 It is a three-dimensional structure schematic diagram of the embodiment two of the utility model.

[0018] Figure 5 It is a partial cross-sectional view schematic diagram of the embodiment two of the utility model.

[0019] In the drawing: 1, workbench;2, round groove;3, fixed frame;4, first motor;5, screw;6, sliding block;7, support plate;8, second motor;9, rotating shaft;10, fixed plate;11, first spring;12, harrow rod;13, cover plate;14, limiting block;15, heating plate;16, sample disc;17, slot;18, sliding rod;19, push rod;20, second spring. Specific implementation

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Embodiment one: the utility model provides a kind of coal sample on-line drying equipment as shown in Figures 1 to 3 Including workbench 1. Workbench 1 is horizontally arranged, and fixed frame 3 and round groove 2 are fixedly arranged on the top of workbench 1.

[0022] First motor 4 is installed on fixed frame 3, and first motor 4 is fixedly connected with fixed frame 3. The output shaft of first motor 4 is upwards and coaxially fixedly connected with vertical screw 5. Sliding block 6 that slides along vertical direction is installed on fixed frame 3, and screw 5 is threadedly connected with sliding block 6, while sliding block 6 is limitingly slidably connected with fixed frame 3.

[0023] Sliding block 6 is fixedly connected with horizontally arranged support plate 7, and second motor 8 is bolted on support plate 7. The output shaft of second motor 8 is vertically downwards and coaxially fixedly connected with rotating shaft 9. Four fixed plates 10 are welded on rotating shaft 9 along radial direction, and the four fixed plates 10 are evenly distributed along the circumference of rotating shaft 9. Multiple vertical harrow rods 12 are welded on the bottom of each fixed plate 10, and multiple harrow rods 12 are arranged in a row in equidistant form along the radial direction of rotating shaft 9.

[0024] A plurality of limiting blocks 14 are welded and fixed on the inner wall of the side curved surface of the circular groove 2 in the axial direction, and the plurality of limiting blocks 14 are uniformly distributed along the circumference of the circular groove 2. A sample disc 16 is slidingly installed in the circular groove 2, and the sample disc 16 is in the shape of a barrel and has an opening at the top. A plurality of limiting grooves are formed on the outer wall of the side curved surface of the sample disc 16 in the axial direction, and the plurality of limiting grooves correspond to the plurality of limiting blocks 14 one by one, and each limiting block 14 is in limiting sliding cooperation with the corresponding limiting groove.

[0025] A heating plate 15 is arranged on the inner wall of the circular groove 2, and the heating plate 15 is fixedly connected with the circular groove 2, and the heating plate 15 is clamped between the circular groove 2 and the sample disc 16.

[0026] A matching cover plate 13 is movably installed at the opening at the top of the sample disc 16, the bottom end of the rotating shaft 9 is provided with a driving member, the driving member is drivingly connected with the cover plate 13 to drive the cover plate 13 to move up and down. Each rake rod 12 is slidingly penetrated through the cover plate 13 and into the sample disc 16.

[0027] The driving member includes a first spring 11 and a square-shaped sliding rod 18. The first spring 11 is sleeved on the rotating shaft 9 and is fixedly arranged between the fixed plate 10 and the cover plate 13.

[0028] A square-shaped insertion slot 17 is formed in the bottom end of the rotating shaft 9 in the axial direction, the sliding rod 18 is matched with the insertion slot 17, the sliding rod 18 is inserted into the insertion slot 17 and is in limiting sliding cooperation with the insertion slot 17. The cover plate 13 is fixedly connected with the bottom end of the sliding rod 18.

[0029] The working principle of the first embodiment is as follows: when drying, the coal sample is placed in the sample disc 16, and then the heating plate 15 heats the sample disc 16. During the heating process, the first motor 4 is started. The output shaft of the first motor 4 drives the screw rod 5 to rotate, the screw rod 5 drives the sliding block 6 to slide down. The sliding block 6 drives the support plate 7 to move down, the support plate 7 drives the second motor 8 to move down. The output shaft of the second motor 8 drives the rotating shaft 9 to move down, the rotating shaft 9 drives the rake rod 12 and the cover plate 13 to move down synchronously through the fixed plate 10 and the first spring 11 respectively.

[0030] When the cover plate 13 contacts the top of the sample disc 16, the cover plate 13 compresses the first spring 11, and the sliding rod 18 slides upward relative to the rotating shaft 9. At this time, the rake rod 12 penetrates into the sample disc 16 downward relative to the cover plate 13. Then, the first motor 4 is turned off, and the second motor 8 is started. The output shaft of the second motor 8 drives the rotating shaft 9 to rotate, the rotating shaft 9 drives the fixed plate 10 and the sliding rod 18 to rotate synchronously. The fixed plate 10 drives the rake rod 12 to revolve around the rotating shaft 9, and the rake rod 12 stirs the coal sample in the sample disc 16. In this process, the rake rod 12 and the sliding rod 18 drive the cover plate 13 to rotate on the top of the sample disc 16. In order to make the cover plate 13 slide more smoothly, a sliding aid such as a roller or a ball can be arranged on the cover plate 13 to rotate.

[0031] When the drying is completed, the heating plate 15 stops working. Then the second motor 8 is turned off, and the first motor 4 is turned on, the output shaft of the first motor 4 reverses and drives the lead screw 5 to reverse, the lead screw 5 pushes the sliding block 6 to slide up. At this time, the rotating shaft 9 moves up, and the rake rod 12 moves up through the fixed plate 10. Due to the elastic force of the first spring 11, the cover plate 13 is stationary relative to the sample disc 16, and the rake rod 12 slides up relative to the cover plate 13. In this process, the cover plate 13 scrapes the coal sample adhered to the rake rod 12. When the rake rod 12 slides to above the cover plate 13, the first spring 11 returns to the natural length. Then the rotating shaft 9 pulls the cover plate 13 to move up synchronously through the first spring 11, and when the cover plate 13 moves up to not affect the sample disc 16 to be taken out of the circular groove 2, the first motor 4 is turned off

[0032] Finally, the sample disc 16 is taken out of the circular groove 2.

[0033] Embodiment two: the utility model provides a kind of coal sample online drying equipment as shown in Figures 4 to 5 The difference between the embodiment and embodiment one is that a plurality of vertical push rods 19 are slidingly installed on the workbench 1, and the plurality of push rods 19 are evenly distributed along the circumference of the sample disc 16. Each push rod 19 penetrates through the workbench 1, and the top end of each push rod 19 penetrates into the circular groove 2 and abuts against the bottom of the sample disc 16 to drive the sample disc 16 to slide up.

[0034] A second spring 20 is sleeved on each push rod 19, the top end of each second spring 20 is fixedly connected with the bottom of the workbench 1, and the bottom end of each second spring 20 is fixedly connected with the push rod 19.

[0035] The working principle of embodiment two: the difference between the working principle and embodiment one is that the rake rod 12 gradually contacts the inner wall of the bottom of the sample disc 16 after penetrating into the sample disc 16, and then the rake rod 12 drives the sample disc 16 to slide down, the sample disc 16 drives all the push rods 19 to slide down, and all the push rods 19 stretch the connected second springs 20. When the bottom of the sample disc 16 contacts the heating plate 15, the first motor 4 is turned off, and the second motor 8 is started.

[0036] When the rake rod 12 moves up, the sample disc 16 and the cover plate 13 move up synchronously with the rake rod 12 under the elastic force of the second spring 20. When the sum of the elastic forces of all the second springs 20 is equal to the sum of the elastic force of the first spring 11 and the gravity of the sample disc 16, the coal sample, the cover plate 13, and all the push rods 19, the sample disc 16 and the cover plate 13 begin to be relatively stationary, and then the rake rod 12 slides up relative to the cover plate 13, and the sample disc 16 continues to slide up relative to the circular groove 2.

[0037] When the rake rod 12 moves to the top of the cover plate 13, the sample disc 16 is stationary relative to the circular groove 2. At this time, the weight of the sample disc 16, the coal sample, and all the push rods 19 is equal to the sum of the elastic force of all the second springs 20. Then the rotating shaft 9 pulls the cover plate 13 up by the first spring 11, and the cover plate 13 is moved up to the point that it does not affect the sample disc 16 from being taken out of the circular groove 2, and the first motor 4 is turned off

[0038] At this time, the top of the sample disc 16 is completely slid out of the circular groove 2, so that the sample disc 16 is easily taken out and the hands of the personnel are prevented from being scalded.

[0039] Finally, it should be noted that the above description is only the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A coal sample on-line drying apparatus comprising a workbench (1), characterized in that: The fixed frame (3) is fixedly arranged on the workbench (1), and the sliding block (6) sliding in the vertical direction is installed on the fixed frame (3); the sliding block (6) is fixedly connected with the supporting plate (7), the second motor (8) is fixedly installed on the supporting plate (7), and the output shaft of the second motor (8) is coaxially fixedly connected with the vertical rotating shaft (9) downward; the fixed plate (10) is fixedly arranged on the rotating shaft (9), and the vertical rake rod (12) is fixedly arranged on the fixed plate (10); the circular groove (2) is fixedly arranged on the workbench (1), and the sample disc (16) is limitedly and slidingly matched in the circular groove (2); the cover plate (13) is movably installed at the top opening of the sample disc (16), and the driving member for driving the cover plate (13) to move up and down is arranged on the rotating shaft (9); the driving member is in transmission connection with the cover plate (13), and the rake rod (12) slidingly penetrates through the cover plate (13) and penetrates into the sample disc (16).

2. The coal sample on-line drying apparatus according to claim 1, characterized in that: The driving member comprises the first spring (11) and the square sliding rod (18); the first spring (11) is sleeved on the rotating shaft (9) and is fixedly arranged between the fixed plate (10) and the cover plate (13); the bottom end of the rotating shaft (9) is provided with the square insertion slot (17) in the axial direction, the sliding rod (18) is inserted into the insertion slot (17) and is limitedly and slidingly matched with the insertion slot (17); and the cover plate (13) is fixedly connected with the sliding rod (18).

3. The coal sample on-line drying apparatus according to claim 1, characterized in that: The heating plate (15) is arranged on the inner wall of the circular groove (2), and the heating plate (15) is clamped between the circular groove (2) and the sample disc (16).

4. The coal sample on-line drying apparatus according to claim 3, characterized in that: A plurality of limiting blocks (14) are fixedly installed on the inner wall of the circular groove (2) and are uniformly distributed in the circumferential direction of the circular groove (2); a plurality of limiting sliding grooves corresponding to the limiting blocks (14) are formed in the outer wall of the sample disc (16), and each limiting block (14) is limitedly and slidingly matched with the corresponding limiting sliding groove.

5. The coal sample on-line drying apparatus according to claim 1, characterized in that: The first motor (4) is fixedly installed on the fixed frame (3), the output shaft of the first motor (4) is coaxially fixedly connected with the lead screw (5), the lead screw (5) is in threaded connection with the sliding block (6), and the sliding block (6) is limitedly and slidingly matched with the fixed frame (3).

6. The coal sample on-line drying apparatus according to claim 1, characterized in that: A plurality of vertical push rods (19) are slidingly installed on the workbench (1) and are uniformly distributed in the circumferential direction of the sample disc (16); the top end of each push rod (19) slidingly penetrates through the workbench (1) and slidingly penetrates into the circular groove (2) and is in transmission cooperation with the bottom of the sample disc (16); one second spring (20) is sleeved on each push rod (19), the top end of each second spring (20) is fixedly connected with the workbench (1), and the bottom end of each second spring (20) is fixedly connected with the push rod (19).

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