Coal pretreatment device for determination of fluorine content in coal

Abstract

The present invention discloses a coal pretreatment device for determining the fluorine content of coal, comprising a rotating mechanism, which comprises a plurality of weighing components arranged at equal intervals along the circumference, and a driving member driving the plurality of weighing components to rotate synchronously, wherein a coal tray is movably arranged on each weighing component, and a drying hood is provided above each coal tray, and each drying hood is connected to a hot air duct to dry the coal; a flipping mechanism, which comprises a tray bracket arranged on one side of the rotating mechanism, and a feed hood covered above the tray bracket, wherein the tray bracket can drive a flipping arrangement for receiving a coal tray and flipping to dump the coal in the coal tray, and the top of the feed hood is connected to a feed duct; a driving mechanism, which is used to drive the coal tray to reciprocate on the weighing component and the tray bracket. The present invention has the beneficial effect that it can bake coal intermediate processing samples in large quantities and batches, and can monitor the coal quality in real time.

Description

Technical Field

[0001] The present invention relates to the field of equipment for measuring fluorine content in coal, and more specifically, to a coal pretreatment device for measuring fluorine content in coal. Background Art

[0002] At present, before testing the coal content, the coal is usually pre-treated to prepare a general analysis sample in accordance with the national standard GB474-2008. In GB474-2008, pre-treatment includes drying the intermediate processed coal sample, and in the prior art, there are two main ways to dry the coal: one is to dry it in an oven, but the oven drying has a long drying time and cannot meet the needs of preparing large quantities of coal samples in multiple batches; the other is to dry it by traditional belt conveyor, but belt conveyor drying cannot monitor the drying quality of the coal. Therefore, there is an urgent need for a pre-treatment device that can monitor the quality of coal in real time and can dry it in large quantities in multiple batches. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and provide a coal pretreatment device for determining the fluorine content of coal, which can bake coal intermediate processing samples in large quantities and in multiple batches, and can monitor the quality of coal in real time.

[0004] In order to achieve these purposes and other advantages according to the present invention, a coal pretreatment device for determining the fluorine content of coal is provided, comprising:

[0005] The rotating mechanism comprises a plurality of weighing assemblies arranged at equal intervals along the circumferential direction and a driving member for driving the plurality of weighing assemblies to rotate synchronously, wherein a coal tray is movably arranged on each weighing assembly, a drying hood is arranged above each coal tray, and each drying hood is connected to a hot air duct to dry the coal;

[0006] A turning mechanism, comprising a tray support arranged on one side of the rotating mechanism, and a feed cover arranged above the tray support, wherein the tray support can be driven to turn over, and is used to receive the coal tray and turn over to dump the coal in the coal tray, and the top of the feed cover is connected to a feed pipe;

[0007] The driving mechanism is used for driving the coal pallet to move back and forth on the weighing assembly and the pallet support.

[0008] Preferably, the weighing assembly includes a square groove, a weighing sensor arranged at the bottom of the square groove, and a support plate arranged above the weighing sensor. The side wall of the square groove away from the central axis of the rotating mechanism is horizontally opened with a first inlet and outlet channel, and the coal tray is movably arranged on the support plate through the first inlet and outlet channel.

[0009] Preferably, the tray bracket includes a square limit groove, and the square limit groove is horizontally opened with a second inlet and outlet channel on the side wall close to the rotating mechanism. When the coal in one of the coal trays is dried to meet the standard, the driving member drives the weighing assembly to rotate to the first inlet and outlet channel on the coal tray and is located on the extension path of the second inlet and outlet channel. The driving mechanism drives the coal tray to pass through the first inlet and outlet channel and the second inlet and outlet channel in sequence and then rest on the bottom of the square limit groove; wherein, the central axis of the square limit groove when flipped is parallel to the second inlet and outlet channel, and when the square limit groove flips, it flips toward the side away from the weighing assembly.

[0010] Preferably, a limiting channel is provided on both side walls of the square groove perpendicular to the side wall where the first entrance and exit channel is located, and on both side walls of the square limiting groove perpendicular to the side wall where the second entrance and exit channel is located, and a horizontal support rod is provided on both side walls of the coal tray, a pair of support rods corresponds to a pair of limiting channels, and when the coal tray moves between the first entrance and exit channel and the second entrance and exit channel, the support rod moves along the limiting channel.

[0011] Preferably, the square limiting groove is flipped by a motor drive.

[0012] Preferably, the driving mechanism includes a pair of horizontal driving telescopic rods arranged on both sides of the square limit groove, the pair of driving telescopic rods are synchronously lifted and lowered in the vertical direction, and a horizontal support plate is provided on the telescopic end of each driving telescopic rod, and a pair of push-pull plates are provided on the support plate, and the push-pull plates are perpendicular to the driving telescopic rod. When the coal in the coal tray is dried to meet the standards, the driving member drives multiple weighing assemblies to rotate until the first inlet and outlet channel is located on the extension path of the second inlet and outlet channel, and the support rods on the coal tray respectively correspond to the pair of push-pull plates. When the pair of driving telescopic rods rises to a set height, the support rods are located between the corresponding pair of push-pull plates. At this time, the driving telescopic rods are started, and one of the push-pull plates pushes the coal tray to move onto the tray bracket. When the coal tray is flipped and fed, the driving telescopic rods are started again, and the other push-pull plate pushes the coal tray to move to the weighing assembly corresponding to the coal tray.

[0013] Preferably, a pair of driving telescopic rods are driven by a cylinder to achieve synchronous lifting in the vertical direction.

[0014] Preferably, the top of the feed hood is also connected to a dust removal channel and an air blowing channel.

[0015] Preferably, it also includes a box body, and the rotating mechanism, the drying hood, the tray bracket, the feed hood, and the driving mechanism are all installed in the box body. A vertical discharge pipe is provided at the bottom of the box body, and the discharge pipe is located below the square limiting groove to facilitate the coal poured out from the coal tray to fall into the discharge pipe.

[0016] Preferably, the top of the discharge pipe is funnel-shaped.

[0017] The present invention has at least the following beneficial effects:

[0018] By designing a weighing component, a driving part, a coal tray, a drying hood, a hot air duct, a tray bracket, a feeding hood, a feeding pipe and a driving mechanism, when in use, the coal tray loaded with coal is placed on the weighing component, the drying hood bakes the coal in the corresponding coal tray, the weighing component monitors the quality of the coal in the coal tray during baking in real time, when the coal is baked to meet the standard, the rotating mechanism rotates the coal tray that meets the baking standard to face the tray bracket, the driving mechanism drives the coal tray to move from the weighing component to the tray bracket, the tray bracket flips and dumps, and the coal in the coal tray is dumped out, and the dumped coal enters the next link, and after the coal tray that has dumped the coal is flipped and reset again by the tray bracket, the feeding pipe on the feeding hood feeds the coal tray, and the feeding is completed, the driving mechanism drives the coal tray to move to the weighing component corresponding to the coal tray, the drying hood above the weighing component bakes the coal on the coal tray again, and the above steps are repeated; as a whole, large-scale and multi-batch baking can be achieved, and the quality of the coal being baked can be monitored in real time, which is helpful to understand the baking degree and improves the efficiency and accuracy of coal sample preparation.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a coal pretreatment device for determining the fluorine content in coal according to one of the technical solutions of the present invention;

[0021] Figure 2 This is a structural side view of the feed drying cover, the square limit groove, and the discharge pipe according to one of the technical solutions of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a weighing assembly according to one of the technical solutions of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a tray support according to one of the technical solutions of the present invention;

[0024] Figure 5 It is a top view of the structure of a pair of push-pull plates and corresponding support rods when the driving telescopic rod is raised to a set height in one of the technical solutions of the present invention;

[0025] Figure 6 A top view of the structure of the multiple drying hoods and the feed hood in one of the technical solutions of the present invention;

[0026] Figure 7 It is a top view of the structure of multiple weighing components in one of the technical solutions of the present invention.

[0027] Figure markings: 1-box; 2-cylinder; 3-drive telescopic rod; 4-discharge pipe; 5-support column; 6-square limit groove; 7-square groove; 8-rotating frame; 9-first motor; 10-second motor; 11-drying hood; 12-feeding hood; 13-first connecting rod; 14-second connecting rod; 15-feeding channel; 16-dust removal channel; 17-blowing channel; 18-hot air channel; 19-support plate; 21-weight sensor; 22-display screen; 23-rotating shaft; 24-support rod; 25-second inlet and outlet channel; 26-limiting channel; 27-wind box; 28-push-pull plate; 29-support plate; 30-coal tray; 31-first inlet and outlet channel. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0029] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0030] The pretreatment operations of the general analytical sample for determining the fluorine content in coal of the present invention include crushing, mixing, shrinking, screening, air drying, etc. The corresponding pretreatment devices include crushing devices, shrinking devices, screening devices, drying devices, etc., that is, the drying device disclosed in the present application is only one of the coal pretreatment devices. In actual use, it can be used in conjunction with other various pretreatment devices (such as crushing devices, shrinking devices, etc.) to prepare the coal into a general analytical sample suitable for determining the fluorine content in coal.

[0031] like Figure 1-7 As shown, the present invention provides a coal pretreatment device for determining the fluorine content of coal, comprising:

[0032] The rotating mechanism comprises a plurality of weighing assemblies arranged at equal intervals along the circumferential direction and a driving member for driving the plurality of weighing assemblies to rotate synchronously, wherein a coal tray 30 is movably arranged on each weighing assembly, a drying hood 11 is arranged above each coal tray 30, and each drying hood 11 is connected to a hot air duct 18 to dry the coal;

[0033] The turning mechanism comprises a tray support arranged at one side of the rotating mechanism and a feed cover 12 arranged above the tray support, wherein the tray support can be driven to turn over, and is used to receive the coal tray 30 and turn over to dump the coal in the coal tray 30, and the top of the feed cover 12 is connected to a feed pipe 15;

[0034] A driving mechanism for driving the coal tray 30 to reciprocate between the weighing assembly and the tray support;

[0035] In the above technical solution, as Figure 1 , Figure 7 shown, the rotating mechanism further includes a rotating frame 8 and a driving member for driving the rotation of the rotating frame 8. The rotating frame 8 includes a vertical support column, a plurality of horizontal fixing rods provided on the upper side wall of the support column, and the plurality of fixing rods are arranged at equal intervals in the circumferential direction. One end of each fixing rod is connected to the side wall of the support column, and the other end is suspended in the air. A weighing assembly is connected to the suspended end of each fixing rod. The driving member may be a first motor 9, and the bottom of the support column is coaxially fixed to the output end of the first motor 9, so that when the output shaft of the first motor 9 rotates, it drives the support column, the plurality of fixing rods, and the plurality of weighing assemblies to rotate synchronously. The number of the weighing assemblies is preferably four; the coal tray 30 can be inserted into the weighing assembly, and the weighing assembly is used for real-time monitoring of the quality of the coal during baking. The weighing assembly may be an existing electronic scale. The drying hood 11 is located above and close to the coal tray 30. The hot air duct 18 is communicated with an external heat supply device to supply hot air to the drying hood 11 for baking coal. Specifically, the air outlet end of the hot air duct 18 is communicated with the top of a wind distribution box 27. The wind distribution box 27 is communicated with a plurality of air outlet pipes, and the plurality of air outlet pipes correspond to the plurality of drying hoods 11. The air outlet end of the air outlet pipe is communicated with the corresponding drying hood 11 to bake the coal located below the drying hood 11; the structure of the tray support may include a C-shaped plate. Slots are provided on the opposite side walls of the two plates of the C-shaped plate in the same direction. The middle plate of the C-shaped plate perpendicular to the two plates in the same direction is away from the rotating mechanism. A rotating shaft is fixedly connected to the side walls of the two plates of the C-shaped plate in the same direction away from each other. A pair of rotating shafts are rotatably installed on a pair of fixed vertical rods, and a pair of fixed vertical rods are provided on the support surface. One of the rotating shafts is driven to rotate by a motor. In this way, when it is necessary to pour the coal, the driving mechanism moves the coal tray 30 to the coal tray 30 is inserted into the C-shaped plate through the slot, and the motor drives the C-shaped plate to rotate to pour the coal;

[0036] In this technical solution, during use, the coal tray 30 loaded with coal is placed on the weighing assembly, and the drying hood 11 bakes the coal in the corresponding coal tray 30. The weighing assembly monitors the quality of the coal in the coal tray 30 during baking in real time. When the coal is baked to meet the standard, the rotating mechanism rotates the coal tray 30 that meets the standard to face the tray bracket, and the driving mechanism drives the coal tray 30 to move from the weighing assembly to the tray bracket. The tray bracket flips and dumps the coal in the coal tray 30, and the dumped coal enters the next link. After the coal tray 30 that has dumped the coal is flipped and reset again by the tray bracket, the feeding pipe 15 on the feeding hood 12 feeds the coal tray 30. After the feeding is completed, the driving mechanism drives the coal tray 30 to move to the weighing assembly corresponding to the coal tray 30, and the drying hood 11 above the weighing assembly bakes the coal on the coal tray 30 again, and the above steps are repeated;

[0037] The beneficial effect of adopting this technical solution is that by designing the weighing assembly, the driving part, the coal tray 30, the drying hood 11, the hot air duct 18, the tray bracket, the feed hood 12, the feed duct 15, and the driving mechanism, large-scale multi-batch baking can be achieved, and the quality of the coal being baked can be monitored in real time, which helps to understand the degree of baking and improves the efficiency and accuracy of coal sample preparation.

[0038] In another technical solution, the weighing assembly includes a square groove 7, a weighing sensor arranged at the bottom of the square groove 7, and a support plate 19 arranged above the weighing sensor 21. The side wall of the square groove 7 away from the central axis of the rotating mechanism is horizontally opened with a first inlet and outlet channel 31, and the coal tray 30 is movably arranged on the support plate 19 through the first inlet and outlet channel 31; specifically, the square groove 7 is a square groove body with the notch facing upward, which is convenient for the drying cover 11 to bake the coal, and the size of the square groove 7 is adapted to the coal tray 30, which is convenient for the coal tray 30 to be placed in the square groove 7. The weighing sensor 21 It is a product structure well known to those skilled in the art, wherein the support plate 19 does not contact the inner wall of the square groove 7, and a first horizontal inlet and outlet channel 31 is provided through the side wall of the square groove 7 away from the central axis of the rotating mechanism for the coal tray 30 to enter and exit; when in use, the coal tray 30 enters and exits the square groove 7 through the first inlet and outlet channel 31, and the weighing sensor 21 monitors the coal quality in real time; the technical solution has the beneficial effect that, by designing the square groove 7, the weighing sensor 21, the support plate 19, and the first inlet and outlet channel 31, a structure of a weighing assembly is provided, which is convenient for the coal tray 30 to enter and exit and can monitor the coal quality in real time.

[0039] In another technical solution, the tray bracket includes a square limit groove 6, and the square limit groove 6 is horizontally provided with a second inlet and outlet channel 25 near the side wall of the rotating mechanism. When the coal in one of the coal trays 30 is dried to meet the standard, the driving member drives the weighing assembly to rotate until the first inlet and outlet channel 31 on the coal tray 30 is located on the extension path of the second inlet and outlet channel 25, and the driving mechanism drives the coal tray 30 to pass through the first inlet and outlet channel 31 and the second inlet and outlet channel 25 in sequence and then rest on the bottom of the square limit groove 6; wherein, the central axis of the square limit groove 6 when flipped is parallel to the second inlet and outlet channel 25, and when the square limit groove 6 is flipped, it flips toward the side away from the weighing assembly; specifically, the square limit groove 6 is a square groove body with the notch facing upward, and the square limit groove 6 is adapted to the size of the coal tray 30 to prevent the coal tray 30 from shaking in the square limit groove 6, and the square limit groove 6 is close to the A second horizontal inlet and outlet channel 25 is provided through the side wall of the rotating mechanism for the coal tray 30 to enter and exit, and the first inlet and outlet channel 31 and the second inlet and outlet channel 25 are parallel. When in use, when the coal in one of the coal trays 30 is roasted to meet the standard, the first motor 9 drives the rotating frame 8 to rotate until the first inlet and outlet channel 31 on the coal tray 30 is located on the extension path of the second inlet and outlet channel 25. At this time, the driving mechanism drives the coal tray 30 to pass through the first inlet and outlet channel 31 and the second inlet and outlet channel 25 in sequence and then rests on the bottom of the square limit groove 6. During the movement of the coal tray 30, when the end of the coal tray 30 away from the central axis of the rotating mechanism moves to the square limit groove 6, the end of the coal tray 30 close to the central axis of the rotating mechanism is located in the square groove 7 until the coal tray 30 completely leaves the square groove 7 and enters the square limit groove 6. At this time, the square limit groove 6 can be driven to flip so that the square limit groove 6 flips to the side away from the weighing component, that is, Figure 1 In the figure, the square limit groove 6 is flipped in the counterclockwise direction, and the coal is poured out from the notch at the top of the square limit groove 6; the beneficial effect obtained by adopting this technical solution is that, by setting the square limit groove 6 and the second inlet and outlet channel 25, a structure of a tray bracket is provided, which ensures that the tray bracket can be driven to flip while placing the coal tray 30, and the structure is simple.

[0040] In another technical solution, a limiting channel 26 is provided on both side walls of the square groove 7 perpendicular to the side wall where the first inlet and outlet channel 31 is located, and on both side walls of the square limiting groove 6 perpendicular to the side wall where the second inlet and outlet channel 25 is located. A horizontal support rod 24 is provided on both side walls of the coal tray 30, and a pair of support rods 24 corresponds to a pair of limiting channels 26. When the coal tray 30 moves between the first inlet and outlet channel 31 and the second inlet and outlet channel 25, the support rod 24 moves along the limiting channel 26. Specifically, a horizontal limiting channel 26 is provided on both side walls of the square groove 7 perpendicular to the side wall where the first inlet and outlet channel 31 is located. The limiting channel 26 is provided on both side walls of the square groove 7 perpendicular to the side wall where the first inlet and outlet channel 31 is located. The channel 26 is perpendicular to the first inlet and outlet channel 31, and a horizontal limiting channel 26 is also provided on both side walls of the square limiting groove 6 which are perpendicular to the side walls where the second inlet and outlet channel 25 is located. The limiting channel 26 is perpendicular to the second inlet and outlet channel 25. When in use, when the coal tray 30 moves between the first inlet and outlet channel 31 and the second inlet and outlet channel 25, the support rod 24 moves along the limiting channel 26. The beneficial effect obtained by adopting this technical solution is that, by designing the limiting channel 26 and the support rod 24, on the one hand, it can prevent the coal tray 30 from being displaced up and down between the first inlet and outlet channel 31 and the second inlet and outlet channel 25, and at the same time assist the subsequent driving mechanism.

[0041] In another technical solution, the square limit slot 6 is turned over by a motor drive; specifically, a pair of support columns 5 are provided on both sides of the square limit slot 6, and the arrangement orientation of the pair of support columns 5 is as follows: Figure 1 As shown, it is arranged on the outer side of the two side walls of the square limiting groove 6 with the limiting channel 26, and a horizontal rotating shaft 23 is arranged between each support column 5 and the square limiting groove 6, one end of the rotating shaft 23 is fixedly connected to the corresponding side wall of the square limiting groove 6, and the other end is rotatably connected to the corresponding support column 5, wherein one rotating shaft 23 rotates to pass through the support column 5, and the passing end of the rotating shaft 23 is coaxially fixedly connected to the output shaft of a second motor 10, and the second motor 10 is installed on the corresponding support column 5. When the second motor 10 drives its output shaft to rotate, it drives the rotating shaft 23 and the corresponding square limiting groove 6 to rotate, so as to facilitate the flipping of the square limiting groove 6. Among them, the rotating shaft 23 is arranged above the limiting channel 26 of the square limiting groove 6; when in use, the second motor 10 drives a pair of rotating shafts 23 to rotate, driving the square limiting groove 6 to flip toward the side away from the rotating mechanism, and the coal in the coal tray 30 in the square limiting groove 6 is poured out from the notch at the upper part of the square limiting groove 6. After the pouring is completed, the second motor 10 drives the square limiting groove 6 to reset; the use of this technical solution has the beneficial effect that, by designing the support column 5, the second motor 10, and the rotating shaft 23, a square limiting groove 6 driving flippable structure is provided, which has a simple structure, is easy to install, and has a good driving effect and stable driving.

[0042] In another technical solution, the driving mechanism includes a pair of horizontal driving telescopic rods 3 respectively arranged on both sides of the square limit groove 6, and the pair of driving telescopic rods 3 are synchronously lifted and lowered in the vertical direction. A horizontal support plate 29 is provided on the telescopic end of each driving telescopic rod 3, and a pair of push-pull plates 28 are provided on the support plate 29. The push-pull plates 28 are perpendicular to the driving telescopic rod 3. When the coal in the coal tray 30 is dried to meet the standard, the driving member drives the multiple weighing components to rotate until the first inlet and outlet channel 31 is located on the extension path of the second inlet and outlet channel 25. The support rods 24 on the coal tray 30 correspond to the pair of push-pull plates 28 respectively. When the pair of driving telescopic rods 3 rises to the set height, the support rods 24 are located between the corresponding pair of push-pull plates 28. At this time, the driving telescopic rods 3 are started, and one of the push-pull plates 28 pushes the coal tray 30 to move to the tray bracket. When the coal tray 30 is turned over and fed, the driving telescopic rod 3 is started again, and the other push-pull plate 28 pushes the coal tray 30 to move to the weighing component corresponding to the coal tray 30.

[0043] In the above technical scheme, specifically, it also includes another pair of support columns 5, which are arranged on both sides of the square limiting groove 6, and each driving telescopic rod 3 corresponds to a pair of support columns 5 located on one side of the square limiting groove 6, the driving telescopic rod 3 is a hydraulic rod, which includes a fixed part and a telescopic part, the driving telescopic rod 3 is located on the side of the support column 5 close to the square limiting groove 6, and a pair of driving telescopic rods 3 are lifted and lowered synchronously; a vertical telescopic rod is installed on each support column 5, and the telescopic rod can be a hydraulic rod, an electric telescopic rod or a cylinder 2, and the driving telescopic rod 3 and a pair of telescopic rods located on the same side of the square limiting groove 6 correspond, and the telescopic end of the telescopic rod is connected to the fixed rod part of the corresponding driving telescopic rod 3, and the fixed end of the telescopic rod is connected to the corresponding support column 5, so that when a pair of telescopic rods are synchronously extended and retracted, the corresponding driving telescopic rod 3 is driven to rise and fall in the vertical direction. In actual use, the four telescopic rods are synchronously extended and retracted to Drive a pair of driving telescopic rods 3 to rise and fall synchronously; the telescopic end of the driving telescopic rod 3 is provided with a horizontal support plate 29, and a pair of push-pull plates 28 are vertically provided on the support plate 29, and the push-pull plate 28 is located on the side of the support plate 29 close to the square limit groove 6. When the rotating mechanism rotates to the point where the first inlet and outlet channel 31 on one of the square grooves 7 is located on the extension path of the second inlet and outlet channel 25, the pair of support plates 29 on the square groove 7 respectively correspond to a pair of support plates 29, and each pair of support rods 24 also corresponds to a pair of push-pull plates 28 on the corresponding support plate 29. When the driving telescopic rod 3 is raised to a set height, the support rod 24 is located between the corresponding pair of push-pull plates 28. Specifically, in the initial state, the driving telescopic rod 3 is in an extended state. When the driving telescopic rod 3 is raised to a set height, the support rod 24 is located between the pair of push-pull plates 28 and is attached to a push-pull plate 28 of the pair of push-pull plates 28 that is away from the central rotation axis 23 of the rotating mechanism.

[0044] When the coal in one of the coal trays 30 is roasted to the required level, the rotating mechanism starts to rotate the coal tray 30 to the first inlet and outlet channel 31 on the corresponding square slot 7, and then the first inlet and outlet channel 31 on the corresponding square slot 7 is located on the extension path of the second inlet and outlet channel 25. Then, after the pair of driving telescopic rods 3 are synchronously raised to the set height under the drive of the telescopic rods, the support rod 24 on the coal tray 30 is located between the corresponding pair of push-pull plates 28 and is attached to one of the push-pull plates 28 (the push-pull plate 28 in the pair of push-pull plates 28 that is away from the central axis of the rotating mechanism). At this time, the telescopic end of the driving telescopic rod 3 is retracted to the other push-pull plate 28 to contact the support rod 24, and the driving telescopic rod 3 continues to retract until the other push-pull plate 28 drives the support rod 24 to retract synchronously, thereby driving the coal tray 30 to pass through the first inlet and outlet channel 31 and the second inlet and outlet channel 25 in turn and then be placed on the bottom of the square limit slot 6. At this time, the pair of driving telescopic rods 3 is synchronously lowered to the set position, and then the square limit groove 6 is driven to flip and dump the coal in the coal tray 30, and the square limit groove 6 is driven to flip and reset (the square limit groove 6 is horizontal after resetting), and then after the feeding pipe 15 feeds the coal tray 30, it is necessary to move the coal tray 30 into the square groove 7. At this time, the pair of driving telescopic rods 3 are synchronously raised to the set height. At this time, the support rod 24 on the coal tray 30 is attached to the other push-pull plate 28 of the corresponding pair of push-pull plates 28. At this time, the pair of driving telescopic rods 3 are started, and the pair of driving telescopic rods 3 are synchronously extended. During the extension process, the push-pull plate 28 away from the central axis of the rotating mechanism is attached to the support rod 24, and drives the support rod 24 to move toward the square groove 7, and finally drives the coal tray 30 to move into the square groove 7. At this time, the pair of driving telescopic rods 3 are synchronously lowered to the set position, and the drying hood 11 continues to bake the coal in the corresponding coal tray 30; repeat the above steps;

[0045] The beneficial effect of adopting this technical solution is that, by designing the driving telescopic rod 3, the support plate 29, the push-pull plate 28, and the telescopic rod, a driving mechanism structure is provided, which can effectively and stably drive the coal tray 30 to move between the square groove 7 and the square limit groove 6.

[0046] In another technical solution, a pair of driving telescopic rods 3 are driven by the cylinder 2 to achieve synchronous lifting in the vertical direction; the beneficial effect obtained by adopting this technical solution is that by designing the cylinder 2, the cylinder 2 is driven stably and quickly, and the material is widely used, and the installation is simple and convenient.

[0047] In another technical solution, the top of the feed hood 12 is also connected to a dust removal duct 16 and an air blowing duct 17. When the coal tray 30 in the coal tray 30 is dumped and the coal push plate is reset, the air blowing duct 17 blows air into the coal tray 30 to blow up the residual materials at the bottom of the coal tray 30, and then the dust removal duct 16 absorbs the residual materials into another processing channel. By designing the dust removal duct 16 and the air blowing duct 17, it is possible to avoid residual materials remaining in the coal tray 30 and affecting the next coal sample preparation.

[0048] In another technical solution, it also includes a box body 1, the rotating mechanism, the drying cover 11, the tray bracket, the feed cover 12, and the driving mechanism are all installed in the box body 1, and a vertical discharge pipe 4 is provided at the bottom of the box body 1, and the discharge pipe 4 is located below the square limit groove 6, so that the coal poured out of the coal tray 30 can fall into the discharge pipe 4; specifically, the first motor 9 is installed on the inner bottom wall of the box body 1, and the bottom of the support column 5 is installed on the inner bottom wall of the box body 1. The top of the box body 1 is provided with a through hole for the feed pipe 15, the hot air pipe 18, the dust removal pipe 16, and the blowing pipe 17 to pass through, and the bottom of the discharge pipe 4 passes through the box At the bottom of the box body 1, the discharge pipe 4 is located below the square limit groove 6 and the discharge pipe 4 is located on the side of the driving telescopic rod 3 close to the square limit groove 6, so as to conveniently receive the coal poured out from the coal tray 30 when the square limit groove 6 is flipped; the wind box 27 is connected to the inner wall of the box body 1 through the first connecting rod 13, and the feed cover 12 is connected to the inner wall of the box body 1 through the second connecting rod 14; when in use, the square limit groove 6 is flipped, and the coal in the coal tray 30 falls into the discharge pipe 4; the technical solution has the beneficial effect that, by designing the box body 1 and the discharge pipe 4, the rotating mechanism and the tray bracket are conveniently installed, and the discharge is convenient.

[0049] In another technical solution, the top of the discharge pipe 4 is funnel-shaped. Specifically, the funnel-shaped top of the discharge pipe 4 covers the square limiting groove 6. The beneficial effect obtained by adopting this technical solution is that by designing the top of the discharge pipe 4 into a funnel shape, it is convenient to fully receive the dumped coal.

[0050] The invention discloses a coal pretreatment device for determining the fluorine content of coal, comprising:

[0051] A rotating mechanism, comprising a plurality of weighing assemblies arranged at equal intervals along the circumferential direction, and a driving member driving the plurality of weighing assemblies to rotate synchronously, wherein a coal tray 30 is movably arranged on each weighing assembly, a drying hood 11 is arranged above each coal tray 30, and each drying hood 11 is connected to a hot air duct 18 to dry the coal; the weighing assembly comprises a square groove 7, a weighing sensor arranged at the bottom of the square groove 7, and a support plate 19 arranged above the weighing sensor 21, a first inlet and outlet channel 31 is horizontally opened on the side wall of the square groove 7 away from the central axis of the rotating mechanism, and the coal tray 30 is movably arranged on the support plate 19 through the first inlet and outlet channel 31;

[0052] A flipping mechanism, which includes a tray support arranged on one side of the rotating mechanism, a feed cover 12 covered above the tray support, and a dust removal pipe 16 and a blowing pipe 17 are also connected to the top of the feed cover 12, wherein the tray support can be driven to flip, and is used to receive a coal tray 30 and flip it to dump the coal in the coal tray 30, and the top of the feed cover 12 is connected to a feed pipe 15; the tray support includes a square limit groove 6, and the square limit groove 6 is horizontally opened with a second inlet and outlet channel 25 near the side wall of the rotating mechanism. When the coal in one of the coal trays 30 is dried to meet the standard, the driving member drives the weighing assembly to rotate to the first inlet and outlet channel 31 on the coal tray 30, which is located on the extension path of the second inlet and outlet channel 25. The driving mechanism drives the coal tray 30 to pass through the first inlet and outlet channel 31 and the second inlet and outlet channel 25 in sequence, and then rests on the bottom of the square limit groove 6; wherein, the central axis of the square limit groove 6 when flipped is parallel to the second inlet and outlet channel 25, and when the square limit groove 6 flips, it flips toward the side away from the weighing assembly;

[0053] The driving mechanism is used to drive the coal tray 30 to reciprocate on the weighing assembly and the tray bracket; the driving mechanism includes a pair of horizontal driving telescopic rods 3 arranged on both sides of the square limit groove 6, and the pair of driving telescopic rods 3 are synchronously lifted in the vertical direction. A horizontal support plate 29 is provided on the telescopic end of each driving telescopic rod 3, and a pair of push-pull plates 28 are provided on the support plate 29. The push-pull plates 28 are perpendicular to the driving telescopic rods 3. When the coal in the coal tray 30 is dried to meet the standard, the driving member drives the multiple weighing assemblies to rotate to the first inlet and outlet channel 31 located at the second inlet and outlet channel 25 When the coal tray 30 is on the extension path, the support rods 24 on the coal tray 30 correspond to a pair of push-pull plates 28 respectively. When the pair of driving telescopic rods 3 rises to the set height, the support rods 24 are located between the corresponding pair of push-pull plates 28. At this time, the driving telescopic rods 3 are started, and one of the push-pull plates 28 pushes the coal tray 30 to move to the tray bracket. When the coal tray 30 is turned over and fed, the driving telescopic rods 3 are started again, and the other push-pull plate 28 pushes the coal tray 30 to move to the weighing assembly corresponding to the coal tray 30. The pair of driving telescopic rods 3 are driven by the cylinder 2 to achieve synchronous lifting in the vertical direction.

[0054] A limiting channel 26 is provided on both side walls of the square groove 7 perpendicular to the side wall where the first inlet and outlet channel 31 is located, and on both side walls of the square limiting groove 6 perpendicular to the side wall where the second inlet and outlet channel 25 is located. A horizontal support rod 24 is provided on both side walls of the coal tray 30. A pair of support rods 24 corresponds to a pair of limiting channels 26. When the coal tray 30 moves between the first inlet and outlet channel 31 and the second inlet and outlet channel 25, the support rod 24 moves along the limiting channel 26. The square limiting groove 6 is driven to flip by a motor.

[0055] It also includes a box body 1, the rotating mechanism, the drying cover 11, the tray bracket, the feed cover 12, and the driving mechanism are all installed in the box body 1, and a vertical discharge pipe 4 is provided at the bottom of the box body 1. The discharge pipe 4 is located below the square limit groove 6, so that the coal poured out of the coal tray 30 can fall into the discharge pipe 4; the top of the discharge pipe 4 is funnel-shaped;

[0056] In the above technical solution, when in use, the initial state of the driving telescopic rod 3 is the extended state. When the coal in one of the coal trays 30 is roasted to the standard, the rotating mechanism starts to rotate the coal tray 30 to the first inlet and outlet channel 31 on the corresponding square slot 7, which is located on the extension path of the second inlet and outlet channel 25. Then, after the pair of driving telescopic rods 3 are synchronously raised to the set height under the drive of the cylinder 2, the support rod 24 on the coal tray 30 is located between the corresponding pair of push-pull plates 28 and with one of the push-pull plates 28 (the one of the pair of push-pull plates 28 is far away from the center of the rotating mechanism). At this time, the telescopic end of the driving telescopic rod 3 is retracted until the other pushing and pulling plate 28 contacts the support rod 24, and the driving telescopic rod 3 continues to retract until the other pushing and pulling plate 28 drives the support rod 24 to retract synchronously, thereby driving the coal tray 30 to pass through the first inlet and outlet channel 31 and the second inlet and outlet channel 25 in sequence and then be placed on the bottom of the square limit groove 6. At this time, a pair of driving telescopic rods 3 are synchronously lowered to the set position, and then the square limit groove 6 is turned over under the drive of the second motor 10, and the coal is poured out from the notch of the square limit groove 6. The coal falls into the discharge pipe 4 and enters the next link. After the square limit groove 6 has dumped the coal, it is turned over and reset again under the drive of the second motor 10 (the square limit groove 6 is horizontal after being reset). Then the blowing pipe 17 blows air to the coal tray 30 to blow up the residual materials remaining in the coal tray 30. The dust removal pipe 16 absorbs the residual materials. At this time, there is no obvious residual materials on the coal tray 30. Then, after the feeding pipe 15 feeds the coal tray 30, the coal tray 30 needs to be moved into the square groove 7. At this time, a pair of driving telescopic rods 3 are synchronously raised to the set height. The support rod 24 on the coal tray 30 is attached to the other push-pull plate 28 of the corresponding pair of push-pull plates 28, and the pair of driving telescopic rods 3 is started at this time, and the pair of driving telescopic rods 3 are extended synchronously. During the extension process, the push-pull plate 28 away from the central axis of the rotating mechanism is attached to the support rod 24, and drives the support rod 24 to move toward the square groove 7, and finally drives the coal tray 30 to move into the square groove 7. At this time, the pair of driving telescopic rods 3 are synchronously lowered to the set position, and the drying cover 11 continues to bake the coal in the corresponding coal tray 30; repeat the above steps;

[0057] The beneficial effect of adopting the above technical scheme is that a coal pretreatment device for determining the fluorine content of coal is provided, which can realize large-scale multi-batch baking and can monitor the quality of the coal being baked in real time, which helps to understand the degree of baking and improves the efficiency and accuracy of coal sample preparation.

[0058] The number of equipment and processing scale described here are used to simplify the description of the present invention. The application, modification and variation of the coal pretreatment device for determining the fluorine content of coal of the present invention will be obvious to those skilled in the art.

[0059] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A coal pretreatment device for determining fluorine content in coal, characterized in that: include: The rotating mechanism comprises a plurality of weighing assemblies arranged at equal intervals along the circumferential direction and a driving member for driving the plurality of weighing assemblies to rotate synchronously, wherein a coal tray is movably arranged on each weighing assembly, a drying hood is arranged above each coal tray, and each drying hood is connected to a hot air duct to dry the coal; A turning mechanism, comprising a tray support arranged on one side of the rotating mechanism, and a feed cover arranged above the tray support, wherein the tray support can be driven to turn over, and is used to receive the coal tray and turn over to dump the coal in the coal tray, and the top of the feed cover is connected to a feed pipe; A driving mechanism, which is used to drive the coal pallet to move back and forth on the weighing assembly and the pallet support; The weighing assembly comprises a square groove, a weighing sensor arranged at the bottom of the square groove, and a support plate arranged above the weighing sensor. A first inlet and outlet channel is horizontally opened on the side wall of the square groove away from the central axis of the rotating mechanism, and the coal tray is movably arranged on the support plate through the first inlet and outlet channel. The tray bracket includes a square limit groove, and the side wall of the square limit groove near the rotating mechanism is horizontally opened with a second inlet and outlet channel. When the coal in one of the coal trays is dried to meet the standard, the driving member drives the weighing assembly to rotate until the first inlet and outlet channel on the coal tray is located on the extension path of the second inlet and outlet channel, and the driving mechanism drives the coal tray to pass through the first inlet and outlet channel and the second inlet and outlet channel in sequence and then rest on the bottom of the square limit groove; wherein, the central axis of the square limit groove when flipped is parallel to the second inlet and outlet channel, and when the square limit groove flips, it flips toward the side away from the weighing assembly; A limiting channel is provided on both side walls of the square groove perpendicular to the side wall where the first inlet and outlet channel is located and on both side walls of the square limiting groove perpendicular to the side wall where the second inlet and outlet channel is located. A horizontal support rod is provided on both side walls of the coal tray. A pair of support rods corresponds to a pair of limiting channels. When the coal tray moves between the first inlet and outlet channel and the second inlet and outlet channel, the support rod moves along the limiting channel. The square limit groove is driven to flip by a motor; The driving mechanism comprises a pair of horizontal driving telescopic rods respectively arranged on both sides of the square limit groove, the pair of driving telescopic rods are synchronously lifted and lowered in the vertical direction, a horizontal support plate is arranged on the telescopic end of each driving telescopic rod, a pair of push-pull plates are arranged on the support plate, and the push-pull plates are perpendicular to the driving telescopic rod. When the coal in the coal tray is dried to meet the standard, the driving member drives the multiple weighing assemblies to rotate until the first inlet and outlet channel is located on the extension path of the second inlet and outlet channel, and the support rods on the coal tray respectively correspond to the pair of push-pull plates. When the pair of driving telescopic rods rises to the set height, the support rods are located between the corresponding pair of push-pull plates. At this time, the driving telescopic rods are started, and one of the push-pull plates pushes the coal tray to move onto the tray bracket. When the coal tray is turned over and fed, the driving telescopic rods are started again, and the other push-pull plate pushes the coal tray to move to the weighing assembly corresponding to the coal tray. A pair of driving telescopic rods are driven by cylinders to achieve synchronous lifting in the vertical direction.

2. The coal pretreatment device for measuring the fluorine content in coal according to claim 1, characterized in that: The top of the feed cover is also connected with a dust removal channel and an air blowing channel.

3. The coal pretreatment device for measuring the fluorine content in coal according to claim 2, characterized in that: It also includes a box body, in which the rotating mechanism, the drying hood, the tray bracket, the feed hood, and the driving mechanism are all installed. A vertical discharge pipe is provided at the bottom of the box body, and the discharge pipe is located below the square limiting groove to facilitate the coal dumped from the coal tray to fall into the discharge pipe.

4. The coal pretreatment device for measuring the fluorine content in coal according to claim 3, characterized in that: The top of the discharge pipe is funnel-shaped.

Images