Automatic sampling device and sampling system for coal-fired furnace

Abstract

The embodiment of the application provides a kind of automatic sampling device into coal furnace, it is related to coal sampling technical field.A kind of automatic sampling device into coal furnace and sampling system include: the inside of the hanging box is provided with sampling pipe, the inside coaxial of sampling pipe is provided with spiral shaft, and the bottom of spiral shaft is provided with telescopic hole, the inside of the telescopic hole is provided with impact column that can impact coal, impact column is impacted larger piece of coal while rotating, to facilitate its coal sampling.The sampling system of the automatic sampling device into coal furnace, including sampling room and the laser positioning support arranged in sampling room, the entrance of sampling room is provided with barrier gate, card reader and display are installed in front of barrier gate, the laser positioning support is fixed with laser positioning device, the whole compartment range can be realized full coverage, there is no sampling blind area, laser positioning device is used, and accurate sampling point can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal sampling, in particular to an automatic sampling device for coal entering a furnace and a sampling system. BACKGROUND

[0002] The coal in the coal car entering the power plant needs to be sampled. Some existing internal sampling machines of power plants are manually operated to collect coal samples of coal cars. The coal car is manually commanded to stop at a specified position, and the sampling machine is manually operated by a sampler. Since manual sampling cannot reduce human intervention on the coal sample, and the operation steps of the sampling machine are complex and tedious, the drill bit positioning and sampling depth rely on the naked eye recognition of the sampler, the sampling weight cannot be measured, and the vehicle information of each vehicle needs to be manually recorded. Therefore, most of the existing sampling machines complete the sampling of coal through an automatic sampling system.

[0003] When the coal in the coal car needs to be sampled, a self-service sampling control system is used, a gate is arranged at the entrance and exit of the sampling machine, a card reader and an LED display screen are installed in front of the gate. The coal car enters the factory, the length, width, height, reinforcing bar and coal type information of the coal car are recorded, and then the card is swiped to enter the sampling machine for sampling. The self-service sampling control system identifies the vehicle radio frequency card through the card reader to read the vehicle information and sends it to a newly-built full-automatic spiral automobile sampling machine, thereby realizing automatic sampling. However, the size of the coal in some coal cars is different, so when the sampling machine moves downward for sampling, the larger coal blocks are easy to jam the moving sampling machine, thereby affecting sampling. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To solve the problem that large coal blocks in the coal car affect the sampling of the sampling component, the present application provides an automatic sampling device for coal entering a furnace and a sampling system.

[0005] According to an automatic sampling device for coal entering a furnace according to an embodiment of the present application, a hanging box is provided, which comprises:

[0006] A sampling pipe is arranged in the inside of the hanging box, a spiral shaft is coaxially arranged in the inside of the sampling pipe, and an expansion hole is formed in the bottom of the spiral shaft. An impact column capable of impacting coal is arranged in the inside of the expansion hole.

[0007] Further, a motor capable of driving the spiral shaft to rotate for sampling is arranged at the top of the sampling pipe. A second crown gear is arranged at the output end of the motor extending into the inside of the sampling pipe.

[0008] Further, a first crown gear is arranged at the top of the spiral shaft. A first gear is engagedly connected between the first crown gear and the second crown gear.

[0009] Further, the top of the screw shaft is downwardly provided with a rotating hole, a reciprocating screw rod is arranged in the rotating hole, a sliding block is sleeved on the outer surface of the reciprocating screw rod, a positioning tube is upwardly arranged on the top of the sliding block, a positioning column is arranged in the positioning tube and extends to the inner wall of the sampling tube.

[0010] Further, the bottom of the sliding block is hingedly provided with a rotatable magnetic ring.

[0011] Further, the impact column is provided with an impact block above, a limiting assembly is arranged between the bottom of the impact block and the bottom of the rotating hole, and a spring is fixedly arranged between the bottom surface of the impact block and the bottom of the rotating hole.

[0012] Further, the sampling tube is internally provided with a top plate, a driving groove is arranged in the bottom of the top plate opposite to the opening of the discharge pipe, and a positive and negative screw shaft is arranged in the driving groove.

[0013] Further, rotating grooves are arranged in the two sides of the bottom of the top plate, first chain wheels are oppositely arranged in the rotating grooves, and rotating belts are sleeved on the outer surfaces of the two groups of first chain wheels.

[0014] Further, a universal joint is arranged between the end of the first chain wheel and the end of the positive and negative screw shaft, a second chain wheel is arranged in the rotating belt, a second gear is arranged on the end of the second chain wheel, and a third crown gear is arranged on the outer surface of the screw shaft and is in meshing connection with the second gear.

[0015] Further, the sampling room and a laser positioning support arranged in the sampling room are included, a gate is arranged at the entrance and exit of the sampling room, a card reader and a display are installed in front of the gate, a laser positioning device is fixed to the laser positioning support, the whole carriage range can be fully covered, there is no sampling blind area, and the laser positioning device can be used to accurately sample the point.

[0016] The beneficial effects of the present application are: after the coal car moves to the inside of the sampling room, the driving mechanism can move the sampling pipe downward after operation, and then the coal inside the coal car is sampled, in the sampling, the motor drives the reciprocating screw rod to rotate, and the sliding block can move up and down after the reciprocating screw rod rotates, after the sliding block moves in the direction of the impact block, the impact block can be magnetically attracted by the magnetic ring, and after the sliding block moves reversely, the spring can be stretched, and finally when the magnetic force of the magnetic ring is smaller than the elastic force of the stretched spring, the spring can quickly pull the impact block to hit the impact column, so that the impact column impacts the large coal at the same time of rotating, to facilitate the sampling of the coal, and when the third bevel gear rotates, the third bevel gear can drive the second gear to rotate, and after the second gear rotates, the rotating belt can rotate, and then the two groups of opposite rotating belt bottoms can move the coal at the top of the sampling pipe to the opening of the discharge pipe, thereby facilitating the discharge of the coal, and at the same time of the rotation of the first sprocket, the positive and negative spiral shafts can be rotated through the universal joint, and after the positive and negative spiral shafts rotate, the coal can be moved to the sides of the rotating belt, thereby facilitating the discharge of the coal and preventing the coal from being blocked.

[0017] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0019] Figure 1 It is a whole structure schematic view of an automatic sampling device and sampling system of a coal inlet furnace according to the embodiments of the present application;

[0020] Figure 2 It is a sampling room structure schematic view according to the embodiments of the present application;

[0021] Figure 3 It is a hanging box structure schematic view according to the embodiments of the present application;

[0022] Figure 4 It is a hanging box upper view plane structure schematic view according to the embodiments of the present application;

[0023] Figure 5 It is a A-A section structure schematic view according to the embodiments of the present application;

[0024] Figure 6is a schematic diagram of an upper view of a structure of a motor according to an embodiment of the present application;

[0025] Figure 7 is a schematic diagram of a structure according to an embodiment of the present application along the B-B section;

[0026] Figure 8 is a schematic diagram of a structure according to an embodiment of the present application; Figure 7 is a schematic diagram of an enlarged structure at A in the middle;

[0027] Figure 9 is a schematic diagram of a structure according to an embodiment of the present application; Figure 7 is a schematic diagram of an enlarged structure at C in the middle;

[0028] Figure 10 is a schematic diagram of an upper view of a structure of a sampling tube according to an embodiment of the present application;

[0029] Figure 11 is a schematic diagram of a structure according to an embodiment of the present application along the C-C section;

[0030] Figure 12 is a schematic diagram of a structure according to an embodiment of the present application; Figure 11 is a schematic diagram of an enlarged structure at D in the middle;

[0031] Figure 13 is a schematic diagram of a structure according to an embodiment of the present application; Figure 7 is a schematic diagram of an enlarged structure at B in the middle;

[0032] Figure 14 is a schematic diagram of a structure according to an embodiment of the present application; Figure 11 is a schematic diagram of an enlarged structure at E in the middle;

[0033] Figure 15 is a schematic diagram of a structure of a spiral shaft according to an embodiment of the present application;

[0034] Figure 16 is a schematic diagram of a structure of a rotating belt according to an embodiment of the present application;

[0035] Figure 17 is a schematic diagram of a system block structure according to an embodiment of the present application.

[0036] Icon: 1, coal car; 2, laser positioning support; 3, sampling room; 31, card reader; 32, display; 33, barrier gate; 34, laser positioning device; 4, travelling crane; 5, box; 51, driving mechanism; 52, moving groove; 53, hanging plate; 6, sampling pipe; 61, discharge pipe; 62, motor; 63, second crown gear; 64, positioning column; 65, reciprocating screw rod; 66, sliding block; 661, positioning pipe; 662, magnetic ring; 67, top plate; 671, driving groove; 672, rotating groove; 7, first gear; 8, spiral shaft; 81, first crown gear; 82, rotating hole; 83, impact block; 84, limiting assembly; 85, spring; 86, impact column; 87, third crown gear; 88, telescopic hole; 9, rotating belt; 91, first sprocket; 92, universal joint; 93, positive and negative spiral shaft; 94, second sprocket; 95, second gear. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0038] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0040] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0042] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0043] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0045] Hereinafter, referring to the drawings, an automatic sampling device and sampling system for a coal-fired furnace according to an embodiment of the present application will be described.

[0046] As Figures 1-5 As shown, the automatic sampling device and sampling system for a coal-fired furnace according to an embodiment of the present application, comprising: a sampling room 3 capable of automatically sampling coal, a laser positioning support 2 is arranged inside the sampling room 3, and the laser positioning support 2 can position the coal car 1 inside the sampling room 3.

[0047] Meanwhile, the upper part of the sampling room 3 is provided with the travelling crane 4, and the sampling part, i.e. the sampling tube 6 and the screw shaft 8, is arranged between the two travelling cranes 4. The hoisting box 5 is arranged between the two travelling cranes 4, and the sampling tube 6 for sampling the coal in the coal car 1 is arranged in the hoisting box 5. Therefore, the automatic sampling of the incoming coal car 1 can be conveniently realized.

[0048] As shown in Figures 3-8 the front of the hoisting box 5 is provided with the moving groove 52, the sampling tube 6 can extend out of the discharge tube 61 and move up and down in the moving groove 52, and the driving mechanism 51 for driving the sampling tube 6 to move up and down is arranged on the top of the hoisting box 5, and the sampling tube 6 can be moved through the hoist plate 53.

[0049] As shown in Figures 5-12 the top of the sampling tube 6 is provided with the motor 62 for driving the screw shaft 8 to rotate, the output end of the motor 62 extends into the sampling tube 6 and is provided with the second crown gear 63, the first gear 7 is engagedly connected between the second crown gear 63 and the first crown gear 81, and therefore, when the motor 62 rotates, the screw shaft 8 can be driven to rotate for sampling the coal through the second crown gear 63, the first gear 7 and the first crown gear 81. The first crown gear 81 extends to the inside of the screw shaft 8 and is provided with the rotating hole 82, and the second crown gear 63 extends to the inside of the rotating hole 82 and is provided with the reciprocating screw rod 65.

[0050] The reciprocating screw rod 65 is sleeved with the sliding block 66 on the outer surface of the reciprocating screw rod 65 in the rotating hole 82, the top of the sliding block 66 extends upwardly and is provided with the positioning tube 661, the positioning tube 661 extends to the top of the inner wall of the sampling tube 6 and is provided with the positioning column 64. When the motor 62 rotates, the second crown gear 63 rotates, the reciprocating screw rod 65 on the top of the second crown gear 63 rotates, and the sliding block 66 reciprocates along the length direction of the reciprocating screw rod 65. Meanwhile, the magnetic ring 662 rotatably connected to the bottom of the sliding block 66.

[0051] The end of the screw shaft 8 penetrates into the rotating hole 82 and is provided with an expansion hole 88. The expansion hole 88 is internally provided with a telescopic impact column 86 which can be telescopically moved, and the top of the impact column 86 extends into the rotating hole 82. An impact block 83 is arranged above the impact column 86, and a limiting component 84 is arranged between the bottom of the impact block 83 and the bottom of the rotating hole 82. A spring 85 is fixedly arranged between the bottom surface of the impact block 83 and the bottom of the rotating hole 82. After the coal car 1 moves into the sampling room 3, the driving mechanism 51 operates to move the sampling pipe 6 downward, and then the coal in the coal car 1 is sampled. During sampling, the motor 62 drives the reciprocating screw rod 65 to rotate, and the sliding block 66 can move up and down reciprocally after the reciprocating screw rod 65 rotates. When the sliding block 66 moves towards the impact block 83, the magnetic ring 662 can magnetically attract the impact block 83. When the sliding block 66 moves reversely, the spring 85 can be stretched. When the magnetic force of the magnetic ring 662 is smaller than the elastic force of the stretched spring 85, the spring 85 can quickly pull the impact block 83 to impact the impact column 86, so that the impact column 86 rotates and impacts the large coal, thereby facilitating the sampling of the coal.

[0052] As Figure 8 and Figure 9 When the screw shaft 8 rotates to sample, the sampled coal moves to the opening of the discharge pipe 61, and the sampled coal is easy to block the opening. The sampling pipe 6 arranged above the screw shaft 8 is provided with a top plate 67, and a driving groove 671 is arranged at the bottom of the top plate 67 opposite to the opening of the discharge pipe 61. A positive and negative screw shaft 93 is arranged inside the driving groove 671. Rotating grooves 672 are arranged at the bottom of the two sides of the top plate 67, and first sprockets 91 are arranged inside the rotating grooves 672. Rotating belts 9 are sleeved on the outer surfaces of the two groups of first sprockets 91. Universal joints 92 are arranged between the ends of the two groups of first sprockets 91 and the ends of the positive and negative screw shaft 93. Second sprockets 94 are arranged inside the rotating belts 9, and second gears 95 are arranged at one side of the ends of the second sprockets 94.

[0053] A third crown gear 87 is arranged on the outer surface of the screw shaft 8 and is meshed with the second gear 95. When the third crown gear 87 rotates, the second gear 95 can be driven to rotate. When the second gear 95 rotates, the rotating belts 9 can rotate. The two groups of opposite rotating belts 9 at the bottom can move the coal at the top of the sampling pipe 6 to the opening of the discharge pipe 61, thereby facilitating the discharge of the coal. When the first sprockets 91 rotate, the positive and negative screw shaft 93 can rotate through the universal joints 92. When the positive and negative screw shaft 93 rotates, the coal can be moved to the two sides of the rotating belts 9, thereby facilitating the discharge of the coal and preventing the coal from being blocked.

[0054] The sampling system comprises a sampling room 3 and a laser positioning support 2 arranged inside the sampling room 3, a gate 33 is arranged at the entrance of the sampling room 3, a card reader 31 and a display 32 are arranged in front of the gate 33, the laser positioning support 2 is fixed with a laser positioning device 34, the whole carriage range can be fully covered, there is no sampling blind area, and the laser positioning device 34 can accurately sample the point position.

[0055] Specifically, the working principle of the automatic coal furnace sampling device and the sampling system is as follows: after the coal car 1 moves to the inside of the sampling room 3, the driving mechanism 51 operates to move the sampling pipe 6 downward, and then the coal in the coal car 1 is sampled. During sampling, the motor 62 drives the reciprocating screw rod 65 to rotate, and the sliding block 66 moves up and down reciprocally after the reciprocating screw rod 65 rotates. When the sliding block 66 moves in the direction of the impact block 83, the magnetic ring 662 can magnetically attract the impact block 83. When the sliding block 66 moves reversely, the spring 85 is stretched. Finally, when the magnetic force of the magnetic ring 662 is smaller than the elastic force of the stretched spring 85, the spring 85 quickly pulls the impact block 83 to hit the impact column 86, so that the impact column 86 rotates while impacting the large coal, thereby facilitating the sampling of the coal.

[0056] When the third crown gear 87 rotates, the third crown gear 87 drives the second gear 95 to rotate, and the rotating belt 9 rotates after the second gear 95 rotates. Then, the two groups of opposite rotating belts 9 at the bottom can move the coal at the top of the sampling pipe 6 to the opening of the discharge pipe 61, thereby facilitating the discharge of the coal. At the same time, the positive and negative helical shaft 93 rotates together through the universal joint 92 when the first sprocket 91 rotates, and the positive and negative helical shaft 93 rotates to move the coal to the two sides of the rotating belt 9, thereby facilitating the discharge of the coal and preventing the coal from being blocked.

[0057] It should be noted that the specific model and specifications of the motor 62 and the driving mechanism 51 need to be determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0058] The above is only an embodiment of the present application and does not limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and variations. 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. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0059] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic sampling device for a coal furnace, comprising a suspended housing (5), characterized in that, include: The sampling tube (6) is installed inside the container (5). A spiral shaft (8) is coaxially installed inside the sampling tube (6). A telescopic hole (88) is opened at the bottom of the spiral shaft (8). An impact column (86) for impacting coal is installed inside the telescopic hole (88). A motor (62) for driving the spiral shaft (8) to rotate and sample is installed at the top of the sampling tube (6). The output end of the motor (62) extends into the sampling tube (6) and a second crown gear (63) is installed inside. A first crown gear is installed at the top of the spiral shaft (8). (81), a first gear (7) meshes between the first crown gear (81) and the second crown gear (63), a rotating hole (82) is provided at the top of the spiral shaft (8) facing downwards, a reciprocating screw (65) is provided inside the rotating hole (82) at the top of the second crown gear (63), a slider (66) is sleeved on the outer surface of the reciprocating screw (65), a positioning tube (661) is provided at the top of the slider (66) facing upwards, and a positioning tube (661) is provided at the top of the inner wall of the sampling tube (6). A rotatable magnetic ring (662) is hinged to the bottom of the positioning post (64) and the slider (66). An impact block (83) is provided above the impact post (86). A limit component (84) is provided between the bottom sides of the impact block (83) and the bottom of the rotating hole (82). A spring (85) is fixedly provided between the bottom surface of the impact block (83) and the bottom of the rotating hole (82). During sampling, the motor (62) drives the reciprocating screw (65) to rotate. After the reciprocating screw (65) rotates, the slider (66) can move to the left and right. The slider (66) moves up and down repeatedly. After the slider (66) moves towards the impact block (83), the impact block (83) can be magnetically attracted by the magnetic ring (662). After the impact block (83) moves in the opposite direction as the slider (66), the spring (85) can be stretched. Finally, when the magnetic force of the magnetic ring (662) is less than the elastic force of the stretched spring (85), the spring (85) can quickly pull the impact block (83) to hit the impact column (86), so that the impact column (86) can impact the larger piece of coal while rotating, so as to facilitate the sampling of the coal.

2. The automatic coal sampling device for a coal-fired furnace according to claim 1, characterized in that, The sampling tube (6) has a top plate (67) inside. The bottom of the top plate (67) opposite to the opening of the discharge tube (61) has a drive groove (671) inside. The drive groove (671) has a positive and negative spiral shaft (93).

3. The automatic sampling device for coal feeders according to claim 2, characterized in that, The top plate (67) has a rotating groove (672) through both sides at the bottom. The rotating groove (672) has a first sprocket (91) arranged opposite to each other on both sides. At the same time, the outer surfaces of the two sets of first sprockets (91) are fitted with rotating belts (9).

4. The automatic sampling device for coal feeders according to claim 3, characterized in that, A universal joint (92) is provided between the end of the first sprocket (91) and the end of the positive and negative spiral shaft (93), while a second sprocket (94) is provided inside the rotating belt (9), and a second gear (95) is provided on the end of the second sprocket (94) extending to one side. A third crown gear (87) is provided on the outer surface of the spiral shaft (8) and meshes with the second gear (95).

Images