Height measuring system for mashed coal cake

Abstract

The utility model relates to a height measuring system for a mashed coal cake, and belongs to the technical field of mashed coke ovens. Comprising a measuring instrument, a rotating support, a connecting plate and a master controller. Two distance measuring instruments arranged in the measuring instrument are used for measuring the height of a mashed and formed coal cake, each distance measuring instrument measures the linear distance between the distance measuring instrument and the height position of a foundation and then measures the linear distance between the distance measuring instrument and the top face of the coal cake in real time, and a controller calculates two corresponding height differences according to the two linear distances measured by the two distance measuring instruments respectively. The average value of the two height differences is calculated through the controller, the sum of the height differences and the basic height is calculated by the controller to serve as the height of the current position of the coal cake, and the accuracy of measuring the height of the current position of the coal cake is improved; when one range finder is damaged, the controller obtains the numerical calculation height of the other range finder and then takes the height as the height of the coal cake at the current position, so that the real-time measurement of the height of the coal cake is ensured, and the influence on the coke forming rate of the coal cake due to untimely measurement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tampering coke ovens, in particular to a height measurement system for tampering coal cakes. Background Art

[0002] The feeder transfers the coal to the tamping coal box through the coal hopper on the SCP machine. The coal is tamped into coal cakes in the tamping coal box by the fully automatic multi-hammer tamping machine. The tamping coal loading system transfers the coal cakes to the carbonization chamber through the furnace door on one side of the SCP machine according to the operation plan.

[0003] The height of the briquette formed by tamping affects the height difference between the top surface of the briquette and the top of the carbonization chamber, and further affects the coke formation rate of the briquette after entering the carbonization chamber. In order to ensure that the height difference between the top surface of the briquette and the top of the carbonization chamber is constant and the coke formation rate of the briquette is guaranteed, it is necessary to measure the height of the briquette at different positions in real time. When measuring the height of the briquette at different positions, a standard height range of the briquette is set. The standard height range is the sum of the basic height of the briquette formed by tamping and the allowable error range. If the height of a certain position of the briquette transmitted to the carbonization chamber is within the standard height range, the coke formation rate of the briquette meets the index of coke production in the coke oven; if the height of a certain position of the briquette transmitted to the carbonization chamber is higher or lower than the standard height range, the height difference between the top surface of the briquette and the top of the carbonization chamber is small or large, the gas circulation is unstable, the heating in the carbonization chamber is uneven, and the temperature stability is poor, which easily causes the coke formed by the briquette to be over-cooked or over-fired.

[0004] However, the height measuring device in the prior art cannot be applied to the height measurement of coal cakes. The reason is that the environment in the coal box is harsh and there is a lot of coal dust. The existing height measuring device cannot accurately and real-time measure the height of the coal cake in such an environment, and may be blocked by coal dust. As a result, it is impossible to determine whether the height of the coal cake meets the standard height range, resulting in an unstable height difference between the top surface of the coal cake and the top of the carbonization chamber when the coal cake enters the carbonization chamber, and the coke yield of the coal cake cannot be guaranteed.

[0005] Based on this, it is urgent to provide a system capable of measuring the height of the tampered coal cakes. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a height measurement system for tampering coal cakes. The technical solution of the utility model is as follows:

[0007] A height measurement system for tampering coal cakes, comprising a measuring instrument, a rotating bracket, a connecting plate and a main controller, wherein one end of the rotating bracket is fixed to the top of a tampering coal box, and the measuring instrument is connected to the other end of the rotating bracket through the connecting plate; the measuring instrument comprises two rangefinders, a power adapter, a shell, an air interface and a controller, wherein the two rangefinders are fixed vertically and parallelly on the first side surface of the inner wall of the shell, and two first through holes are provided vertically and parallelly on the top of the third side surface of the shell, and the positions of the transmitting ends of the two rangefinders correspond to the positions of the two first through holes, and the power adapter and the controller are connected to each other. The devices are fixed to the second side surface of the inner wall of the shell, one end of the air interface is connected to the fourth side surface of the shell, and the other end of the air interface is connected to an external air compressor. The shell is also provided with a second through hole, and the input end of the power adapter is connected to the external power supply through the second through hole, and the output end of the power adapter is connected to the power input end of the rangefinder and the power input end of the controller; the bottom of the shell is fixedly connected to one side surface of the connecting plate; the two rangefinders are electrically connected to the controller, and the controller and the rotating bracket are electrically connected to the main controller.

[0008] Optionally, the rotating bracket includes a support, a motor, three hydraulic cylinders, multiple groups of sliding members, two groups of rotating members and a connecting seat, the motor is vertically fixed to the top of the coal box, the output shaft of the motor is connected to the cylinder body end of the first hydraulic cylinder through the support, the piston rod end of the first hydraulic cylinder is connected to the top surface of the connecting seat, the cylinder body end of the second hydraulic cylinder is rotatably connected to one side of the connecting seat through the first rotating member, the cylinder body end of the third hydraulic cylinder is rotatably connected to the cylinder body outer wall of the first hydraulic cylinder through the second rotating member, the piston rod end of the third hydraulic cylinder is slidably connected to the cylinder body outer wall of the second hydraulic cylinder through multiple sliding members; the piston rod end of the second hydraulic cylinder is connected to the other side of the connecting plate; the motor and the three hydraulic cylinders are all electrically connected to the main controller.

[0009] Optionally, a height measurement system for tamping coal cakes also includes a coal flattening machine, a fixed bracket and an inclination sensor; the coal flattening machine includes a coal flattening car, a coal flattening wheel, a drag rod and a connecting shaft, the coal flattening wheel is rollingly connected to the top surface of the coal cake, the coal flattening car is located on one side of the coal cake, one end of the drag rod is fixedly connected to the top of the coal flattening wheel, the other end of the drag rod is rotatably connected to one end of the connecting shaft, the other end of the connecting shaft is fixedly connected to one side of the coal flattening car, the fixed bracket is fixed to the top of the other end of the drag rod, and the inclination sensor is connected to the fixed bracket; the inclination sensor is electrically connected to the main controller.

[0010] Optionally, the support member includes two T-shaped support rods, a first support plate, a second support plate and two connecting buckles, the cross-sectional shape of the first support plate is circular, the cross-sectional shape of the second support plate is annular, the diameter of the first support plate is smaller than the inner diameter of the second support plate, one side of the first support plate is connected to the output shaft of the motor, and the other side of the first support plate is connected to the cylinder body end of the first hydraulic cylinder, the second support plate is sleeved on the outer periphery of the first support plate, the bottom of the second support plate and the bottom of the first support plate are connected by two symmetrically distributed connecting buckles, the two T-shaped support rods are symmetrically clamped in the gap between the first support plate and the second support plate, the ends of the vertical parts of the two T-shaped support rods are fixed to the box top of the coal tamping box, and the horizontal parts of the T-shaped support rods are abutted against the bottom of the first support plate and the bottom of the second support plate.

[0011] Optionally, each group of the sliding parts includes a slide groove, a slider and a connecting rod, the groove of the slide groove faces outward, and the slide groove is fixed to the outer wall of the cylinder body of the second hydraulic cylinder, the slider is slidably connected to the slide groove, one end of the connecting rod is connected to the slider, and the other end of the connecting rod is connected to the end of the piston rod of the third hydraulic cylinder; multiple slide grooves in multiple groups of sliding parts are circumferentially fixed to the outer wall of the cylinder body of the second hydraulic cylinder.

[0012] Optionally, each group of the rotating parts includes a U-shaped fixing seat and two rotating shafts, one end of the two rotating shafts are rotatably connected to the first side surface and the second side surface opposite to the U-shaped fixing seat; the other ends of the two rotating shafts of the first group of rotating parts are symmetrically fixed to the outer wall of the cylinder body of the second hydraulic cylinder, and the third side surface of the U-shaped fixing seat is fixedly connected to one side surface of the connecting seat; the other ends of the two rotating shafts of the second group of rotating parts are symmetrically fixed to the outer wall of the cylinder body of the first hydraulic cylinder, and the third side surface of the U-shaped fixing seat is fixedly connected to the cylinder end of the third hydraulic cylinder.

[0013] All the optional technical solutions mentioned above can be combined arbitrarily, and the present utility model does not provide detailed descriptions of the structures after the combinations one by one.

[0014] By means of the above scheme, the beneficial effects of the utility model are as follows:

[0015] By setting up a measuring instrument and a rotating bracket, the measuring instrument is fixed on the top of the coal box by the rotating bracket, so that it can be away from the coal dust generated by the tamping machine in the process of tamping the coal cakes; the height of the tamped coal cakes is measured by two rangefinders set in the measuring instrument, each rangefinder first measures the distance to the base height position, and then measures the straight-line distance between a certain position on the top surface of the coal cake in real time, and then the controller calculates the height difference between a certain position on the top surface of the coal cake and the base height position for each rangefinder. Therefore, there are two height differences between a certain position on the top surface of the coal cake and the base height position, and then the controller calculates the average value of the two height differences as a certain height difference of the top surface of the coal cake The final height difference of the position is improved to improve the accuracy of calculating the height difference of a certain position of the coal cake; and when one of the rangefinders is damaged, the controller takes the numerical value of the other rangefinder to calculate the height as the height of the coal cake at the current position, ensuring the real-time measurement of the coal cake height and avoiding untimely measurement, which affects the coke yield of the coal cake; by setting an air interface, an external air compressor blows air into the measuring instrument through the air interface, and the air blown by the air compressor will pass through the transmitting ends of the two rangefinders and finally be blown out of the casing through the two first through holes. Therefore, the wind entering the casing in this process can bring the coal dust on the transmitting end out of the casing, thereby ensuring the accuracy of the measurement of the two rangefinders.

[0016] In summary, the utility model provides a coal cake height measurement system, which can timely measure the height of the coal cake formed by tamping, and has high measurement accuracy.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the measuring instrument in the utility model;

[0020] Figure 3 It is a right side view of the measuring instrument in the utility model;

[0021] Figure 4 It is a schematic diagram of the measuring relationship between the measuring instrument and the top surface of the coal cake in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the rotating bracket in the utility model;

[0023] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0024] Figure 7 This is a schematic diagram of the positional relationship among the coal leveling machine, the fixed bracket and the inclination sensor in the utility model;

[0025] Figure 8 This is a schematic diagram of the positional relationship of the flat coal wheel, the towing rod, the fixed bracket and the inclination sensor of the utility model during driving;

[0026] Fig. 9 It is a schematic diagram of the positional relationship between the tow bar, the fixed bracket and the inclination sensor in the utility model;

[0027] Fig.10 It is a schematic diagram of the measurement relationship among the flat coal wheel, the drag rod and the inclination sensor in the utility model;

[0028] Fig.11 It is a right side view of the rotating bracket in the utility model.

[0029] Description of Figure Numbers:

[0030] 1. Measuring instrument; 11. Distance meter; 12. Power adapter; 13. Housing; 131. First side; 132. Second side; 133. Third side; 134. Fourth side; 14. Second through hole; 15. Controller; 16. Air interface; 2. Rotating bracket; 21. Support member; 211. T-shaped support rod; 212. First support plate; 213. Second support plate; 214. Connecting buckle; 22. Motor; 23. Hydraulic cylinder; 24. Sliding member; 241. Slide groove; 242. Sliding block; 243. Connecting rod; 25. Rotating member; 251. U-shaped fixing seat; 252. Rotating shaft; 26. Connecting seat; 3. Connecting plate; 4. Coal leveling machine; 41. Coal leveling car; 42. Coal leveling wheel; 43. Drag rod; 44. Connecting shaft; 5. Fixed bracket; 6. Inclination sensor; 7. Box top; 8. Coal cake. DETAILED DESCRIPTION

[0031] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] like Figures 1 to 11As shown, the utility model provides a height measurement system for tamping coal cakes, including a measuring instrument 1, a rotating bracket 2, a connecting plate 3 and a main controller, one end of the rotating bracket 2 is fixed to the box top 7 of the tamping coal box, and the measuring instrument 1 is connected to the other end of the rotating bracket 2 through the connecting plate 3; the measuring instrument 1 includes two rangefinders 11, a power adapter 12, a shell 13, an air interface 16 and a controller 15, the two rangefinders 11 are fixed vertically and parallelly on the first side surface 131 of the inner wall of the shell 13, and two first through holes are opened vertically and parallelly on the top of the third side surface 133 of the shell 13, the positions of the transmitting ends of the two rangefinders 11 correspond to the positions of the two first through holes, and the power adapter 12 and the controller 15 are fixed to the second side surface 132 of the inner wall of the shell 13, one end of the air interface 16 is connected to the fourth side surface 134 of the shell 13, and the other end of the air interface 16 is connected to an external air compressor. The shell 13 is also provided with a second through hole 14, and the input end of the power adapter 12 is connected to the external power supply through the second through hole 14, and the output end of the power adapter 12 is connected to the power input end of the rangefinder 11 and the power input end of the controller 15; the bottom of the shell 13 is fixedly connected to one side of the connecting plate 3; the two rangefinders 11 are electrically connected to the controller 15, and the controller 15 and the rotating bracket 2 are electrically connected to the main controller.

[0033] In a specific implementation, the rangefinder 11 close to the top surface of the inner wall of the housing 13 is recorded as the first rangefinder 11, and the other rangefinder 11 is recorded as the second rangefinder 11. Since the two rangefinders 11 are fixed in parallel up and down, the light beams emitted by the transmitting ends of the two rangefinders 11 are parallel to each other, so the angles between the light beams emitted by the transmitting ends of the two rangefinders 11 and the vertical direction are consistent, and the irradiation position of the first rangefinder 11 on the top surface of the coal cake 8 is always located on one side of the irradiation position of the second rangefinder 11 on the top surface of the coal cake 8.

[0034] Furthermore, after the coal is pounded into coal cakes 8 by the pounding machine, there is a base height, and the sum of the base height and the allowable error range is the standard height range.

[0035] For example, Figure 4 As shown, the coal cake 8 enters the carbonization chamber by tamping the transport bin in the coal bin. Therefore, it is assumed that a basic irradiation position is provided on the bin wall of the transport bin, and the straight-line distance from the basic irradiation position to the bottom of the transport bin is the basic height of the coal cake 8. The top surface of the coal cake 8 has a first irradiation position. In the process of transporting the coal cake 8 to the carbonization chamber, the basic irradiation position on the bin wall of the transport bin is first irradiated by the first rangefinder 11, and then by the second rangefinder 11. The first irradiation position on the top surface of the coal cake 8 is first irradiated by the first rangefinder 11, and then by the second rangefinder 11.

[0036] On the basis of the above contents, when the height of a certain position of the coal cake 8 is determined by the measuring instrument 1, it is achieved by the following method:

[0037] First, before the shaped coal cake 8 is transferred to the carbonization chamber, the external power supply supplies power to the two rangefinders 11 and the controller 15 through the power adapter 12. The two rangefinders 11 emit two light beams to illuminate the basic irradiation position of the transport bin wall, and the two rangefinders 11 respectively measure the straight-line distance from their transmitting end to the basic irradiation position; during the process of transferring the shaped coal cake 8 to the carbonization chamber, the two rangefinders 11 again emit two light beams from the transmitting end to illuminate the top surface of the coal cake 8. First, the first rangefinder 11 measures the straight-line distance between the transmitting end and the first irradiation position; then, the first rangefinder 11 transmits the two measured straight-line distances to the controller 15, and the controller 15 calculates the first height difference between the basic irradiation position and the first irradiation position according to formula (1):

[0038] ΔH1=cosα1*(L1-L2) (1)

[0039] Among them, α1 is the acute angle between the light beam emitted by the rangefinder 11 and the vertical direction, L1 is the straight-line distance between the transmitting end of the first rangefinder 11 and the basic irradiation position, L2 is the straight-line distance between the transmitting end of the first rangefinder 11 and the first irradiation position, and ΔH1 is the height difference between the basic irradiation position and the first irradiation position.

[0040] Next, the second rangefinder 11 measures the straight-line distance between the transmitting end and the first irradiation position, and then calculates the second height difference between the basic irradiation position and the first irradiation position using the above formula (1);

[0041] The controller 15 calculates the average value of the first height difference and the second height difference, and then calculates the sum of the average value and the base height as the height of the first irradiation position of the coal cake 8 .

[0042] Furthermore, the controller 15 analyzes whether the height corresponding to the first irradiation position of the coal cake 8 is within the standard height range. If not, the controller 15 transmits the analysis result to the main controller, and the main controller controls the tampering machine to re-tamper the first irradiation position of the next coal cake 8 that needs to be transferred to the carbonization chamber; if it is within the standard height range, the controller 15 transmits the analysis result to the main controller, and the main controller does not need to control the tampering machine to re-tamper the first irradiation position.

[0043] It should be noted that, since the coal cake 8 is always in a transportation state, in the above measurement process, the first rangefinder 11 always measures the first irradiation position first, and then the second rangefinder 11 measures the first irradiation position, so that the same first irradiation position will obtain two height differences, and then the average value of the two height differences is calculated as the final height difference between the basic irradiation position and the first irradiation position on the top surface of the coal cake 8, so as to improve the measurement accuracy; and the first irradiation position will change with the transportation of the coal cake 8, thereby realizing the measurement of the entire top surface height of the coal cake 8 by the two rangefinders 11.

[0044] By setting up a measuring instrument 1 and a rotating bracket 2, the measuring instrument 1 is fixed to the box top 7 of the tamping coal box through the rotating bracket 2, so that the measuring instrument 1 can be kept away from the coal dust generated by the tamping machine during the tamping of the coal cakes 8; the height of the tamped coal cakes 8 is measured by two rangefinders 11 arranged in the measuring instrument 1, and the two rangefinders 11 respectively measure the straight-line distance between the transmitting end and the basic irradiation position of the transport bin wall through which the coal cakes 8 pass and the first irradiation position on the top surface of the coal cakes 8 in real time, and then the controller 15 respectively calculates the two height differences between the basic irradiation position and the first irradiation position, and the controller calculates the average value of the two height differences as the final height difference between the basic irradiation position and the first irradiation position on the top surface of the coal cake 8, so as to improve the accuracy of the calculated height difference; and then the sum of the final height difference and the basic height is calculated as the height of the first irradiation position, so as to further improve the accuracy of the measuring instrument 1 The measurement accuracy of the height of the first irradiation position of the coal cake 8; and when one of the rangefinders 11 is damaged, the controller 15 takes the two straight-line distances measured by the other rangefinder 11 to calculate the height difference between the basic irradiation position and the first irradiation position, and calculates the height of the first irradiation position of the coal cake 8 based on this data, thereby ensuring the real-time measurement of the height of the coal cake 8, avoiding untimely measurement and affecting the coke yield of the coal cake 8; by setting the air interface 16, an external air compressor blows air into the shell 13 through the air interface 16, and the wind blown into the shell 13 by the air compressor will pass through the transmitting ends of the two rangefinders 11, and finally be blown out of the shell 13 through the two first through holes. Therefore, in this process, the wind entering the shell 13 can bring the coal dust on the transmitting end out of the shell 13, thereby avoiding the two rangefinders 11 from being affected by the coal dust, and ensuring the accuracy of the measurement of the two rangefinders 11.

[0045] Optionally, the rotating bracket 2 includes a support 21, a motor 22, three hydraulic cylinders 23, multiple groups of sliding members 24, two groups of rotating members 25 and a connecting seat 26, the motor 22 is vertically fixed to the box top 7 of the tamping coal box, the output shaft of the motor 22 is connected to the cylinder end of the first hydraulic cylinder 23 through the support 21, the piston rod end of the first hydraulic cylinder 23 is connected to the top surface of the connecting seat 26, the cylinder end of the second hydraulic cylinder 23 is rotatably connected to one side of the connecting seat 26 through the first rotating member 25, the cylinder end of the third hydraulic cylinder 23 is rotatably connected to the cylinder outer wall of the first hydraulic cylinder 23 through the second rotating member 25, the piston rod end of the third hydraulic cylinder 23 is slidably connected to the cylinder outer wall of the second hydraulic cylinder 23 through multiple sliding members 24; the piston rod end of the second hydraulic cylinder 23 is connected to the other side of the connecting plate 3; the motor 22 and the three hydraulic cylinders 23 are all electrically connected to the main controller.

[0046] Specifically, the number of the sliding members 24 can be two groups or three groups. Preferably, the number of the sliding members 24 of the present invention is two groups.

[0047] In a specific implementation, the main controller starts the motor 22 and the three hydraulic cylinders 23. The motor 22 drives the first hydraulic cylinder 23 to rotate in a circle under the support of the support member 21, thereby adjusting the angle of the rotating bracket 2 in the vertical direction; the piston rod of the first hydraulic cylinder 23 is extended and retracted, thereby adjusting the length of the rotating bracket 2 in the vertical direction; the piston rod of the second hydraulic cylinder 23 is extended and retracted, thereby adjusting the length of the rotating bracket 2 in the horizontal direction; the piston rod of the third hydraulic cylinder 23 is extended and retracted, driving the second hydraulic cylinder 23 to rotate under the action of the first rotating member 25, thereby adjusting the angle of the rotating bracket 2 in the vertical direction; the piston rod of the third hydraulic cylinder 23 is connected to the outer wall of the cylinder body of the second hydraulic cylinder 23 through two sliding members 24, which can provide support for the rotation of the second hydraulic cylinder 23.

[0048] Furthermore, when the rotation angle of the output shaft of the motor 22 is controlled by the master controller, the rotation angle of the first hydraulic cylinder 23 can be adjusted. When the extension length or retraction length of the piston rods of the three hydraulic cylinders 23 is controlled by the master controller, the vertical length and horizontal length of the rotating bracket 2 can be limited, and the rotation angle of the second hydraulic cylinder 23 can be adjusted.

[0049] According to different volumes of tinkering coal boxes and different tinkering environments, the main controller controls the movement of the motor 22 and the three hydraulic cylinders 23 to adjust the angle and length of the rotating bracket 2, and then adjusts the position of the measuring instrument 1 in the tinkering coal box, so that the measuring instrument 1 can adapt to tinkering coal boxes of different volumes and tinkering environments, thereby improving the scope of application of the measuring instrument 1 of the utility model.

[0050] Optionally, a height measurement system for tamping coal cakes also includes a coal flattening machine 4, a fixed bracket 5 and an inclination sensor 6; the coal flattening machine 4 includes a coal flattening car 41, a coal flattening wheel 42, a drag rod 43 and a connecting shaft 44, the coal flattening wheel 42 is rollingly connected to the top surface of the coal cake 8, the coal flattening car 41 is located on one side of the coal cake 8, one end of the drag rod 43 is fixedly connected to the top of the coal flattening wheel 42, the other end of the drag rod 43 is rotatably connected to one end of the connecting shaft 44, the other end of the connecting shaft 44 is fixedly connected to one side of the coal flattening car 41, the fixed bracket 5 is fixed on the top of the other end of the drag rod 43, and the inclination sensor 6 is connected to the fixed bracket 5; the inclination sensor 6 is electrically connected to the main controller.

[0051] In a specific implementation, after the coal is tamped into coal cakes 8, the top surface of the coal cakes 8 is first flattened by a flat coal car 41 and a flat coal wheel 42. The flat coal car 41 is connected to a tow rod 43 and a flat coal wheel 42 via a connecting shaft 44. When the flat coal car 41 travels on a track set on one side of the coal cake 8, it can drive the flat coal wheel 42 to roll on the top surface of the coal cake 8.

[0052] For example, Fig.10 As shown, it is assumed that there are two positions on the top surface of the coal cake 8, the position that is first flattened by the flat coal wheel 42 is recorded as the first position, and the other position is recorded as the second position; in the process of the flat coal wheel 42 moving from the first position to the second position, the inclination sensor 6 connected to the top surface of the drag rod 43 through the fixed bracket 5 can measure the change in the angle between the drag rod 43 and the vertical direction in real time.

[0053] The coal leveler 4, the fixed support 5 and the inclination sensor 6 are used to cooperate with the main controller to measure the height of the coal cake 8. The specific process is as follows:

[0054] First, when the flat coal wheel 42 moves from the first position to the second position, the inclination sensor 6 detects that the angle is zero, and the inclination sensor 6 transmits the detected angle to the main controller, and the main controller determines that there is no height difference between the first position and the second position; when the flat coal wheel 42 moves from the first position to the second position, the inclination sensor 6 detects that the angle changes, and the inclination sensor 6 transmits the detected angle to the main controller, and the main controller determines that there is a height difference between the first position and the second position, and calculates the height difference between the first position and the second position according to formula (2):

[0055] ΔH2=L3-cosα2*L3 (2)

[0056] Wherein, α2 is the angle between the drag rod 43 and the vertical direction, L3 is the distance between the center position of the drag rod 43 and the bottom of the flat coal wheel 42, and ΔH2 is the height difference between the first position and the second position.

[0057] Then, the master controller calculates the height difference and the base height of the coal cake 8 to obtain the height of the coal cake 8 at the second position. At this time, the height of the second position is the final height of the coal cake 8 at the current measurement position.

[0058] It should be noted that the second position in the above measurement process is the first position in the next process of determining the height of the coal cake 8 by the inclination sensor 6 .

[0059] The height obtained by measuring the height of the second position of the coal cake 8 by using the inclination sensor 6 is recorded as the first height. Later, during the process of transferring the coal cake 8 to the carbonization chamber, the height of the second position of the top surface of the coal cake 8 is measured by the measuring instrument 1. The controller 15 calculates the second height. Both the first height and the second height are transmitted to the main controller for comparison. If the first height is the same as the second height or the difference is small, it proves that the inclination sensor 6 and the measuring instrument 1 are working properly. The main controller then determines whether the first height and the second height are within the standard height range, and then controls whether the tamping machine needs to tamper the second position of the next coal cake 8 that needs to be transferred to the carbonization chamber again; if the difference between the first height and the second height is large, it proves that the inclination sensor 6 and the measuring instrument 1 may be faulty, and the staff only needs to repair them.

[0060] It should be noted that the height of the coal cake 8 in the present invention can be measured by using only the measuring instrument 1; it can also be measured by combining the measuring instrument 1 with the inclination sensor 6. The measurement method using the measuring instrument 1 and the inclination sensor 6 in combination can improve the measurement accuracy of the height of the coal cake 8.

[0061] Furthermore, after calculating the height of the coal cake 8, the mass of the coal cake 8 can also be calculated by formula (3), which is:

[0062] m=V*ρ=L*W*H*ρ (3)

[0063] Among them, V is the volume of the coal cake 8, ρ is the density of the coal, L is the length of the coal cake 8, W is the width of the coal cake 8, H is the average value of the final heights of multiple first irradiation positions on the top surface of the coal cake 8 obtained by measuring with the measuring instrument 1 or the average value of the final heights of multiple second positions on the top surface of the coal cake 8 obtained by measuring with the measuring instrument 1 and the inclination sensor 6, and m is the mass of the coal cake 8.

[0064] Optionally, the support member 21 includes two T-shaped support rods 211, a first support plate 212, a second support plate 213 and two connecting buckles 214, the cross-sectional shape of the first support plate 212 is circular, the cross-sectional shape of the second support plate 213 is annular, the diameter of the first support plate 212 is smaller than the inner diameter of the second support plate 213, one side of the first support plate 212 is connected to the output shaft of the motor 22, the other side of the first support plate 212 is connected to the cylinder end of the first hydraulic cylinder 23, and the second support The plate 213 is sleeved on the outer periphery of the first support plate 212, and the bottom of the second support plate 213 and the bottom of the first support plate 212 are connected by two symmetrically distributed connecting buckles 214. The two T-shaped support rods 211 are symmetrically clamped in the gap between the first support plate 212 and the second support plate 213. The ends of the vertical parts of the two T-shaped support rods 211 are fixed to the box top 7 of the tamping coal box, and the horizontal parts of the T-shaped support rods 211 are in contact with the bottom of the first support plate 212 and the bottom of the second support plate 213.

[0065] The support member 21 can provide support for the output shaft of the motor 22 to drive the rotation of the first hydraulic cylinder 23 and the rotation of other structures connected to the first hydraulic cylinder 23, thereby preventing the output shaft of the motor 22 from being damaged due to excessive load on the connection.

[0066] Optionally, each group of the sliding members 24 includes a slide groove 241, a slider 242 and a connecting rod 243, the notch of the slide groove 241 faces outward, and the slide groove 241 is fixed to the outer wall of the cylinder body of the second hydraulic cylinder 23, the slider 242 is slidably connected to the slide groove 241, one end of the connecting rod 243 is connected to the slider 242, and the other end of the connecting rod 243 is connected to the piston rod end of the third hydraulic cylinder 23; multiple slide grooves 241 in multiple groups of the sliding members 24 are circumferentially fixed to the outer wall of the cylinder body of the second hydraulic cylinder 23.

[0067] In a specific implementation manner, the utility model also includes four fixing rings, the first fixing ring is sleeved on the cylinder end of the second hydraulic cylinder 23, and is used to connect with the first group of rotating parts 25; the second fixing ring and the third fixing ring are both sleeved on the piston rod near the second hydraulic cylinder 23, and the second fixing ring and the third fixing ring are both used to fix the slide groove 241; the fourth fixing ring is sleeved on the outer wall of the cylinder body of the first hydraulic cylinder 23, and is used to connect with the second group of rotating parts 25.

[0068] When the utility model adopts two sliding members 24, the sliding grooves 241 of the two sliding members 24 are symmetrically fixed on both sides of the second fixing ring and the third fixing ring with the notches facing outwards.

[0069] Furthermore, if Fig.11As shown, when the cylinder end of the second hydraulic cylinder 23 is connected to the right side of the connecting seat 26 through the first group of rotating parts 25, the piston rod of the third hydraulic cylinder 23 extends, driving the slider 242 to slide in the slide groove 241 along the direction close to the piston rod of the second hydraulic cylinder 23, and at the same time driving the second hydraulic cylinder 23 to rotate counterclockwise along the first rotating part 25; when the piston rod of the third hydraulic cylinder 23 retracts, it drives the slider 242 to slide in the slide groove 241 along the direction away from the piston rod of the second hydraulic cylinder 23, and at the same time drives the second hydraulic cylinder 23 to rotate clockwise along the first rotating part 25.

[0070] Optionally, each group of the rotating parts 25 includes a U-shaped fixed seat 251 and two rotating shafts 252, and one end of the two rotating shafts 252 is rotatably connected to the first side and the second side opposite to the U-shaped fixed seat 251; the other ends of the two rotating shafts 252 of the first group of rotating parts 25 are symmetrically fixed on the outer wall of the cylinder body of the second hydraulic cylinder 23, and the third side of the U-shaped fixed seat 251 is fixedly connected to one side of the connecting seat 26; the other ends of the two rotating shafts 252 of the second group of rotating parts 25 are symmetrically fixed on the outer wall of the cylinder body of the first hydraulic cylinder 23, and the third side of the U-shaped fixed seat 251 is fixedly connected to the cylinder end of the third hydraulic cylinder 23.

[0071] In a specific embodiment, the other ends of the two rotating shafts 252 in the first group of rotating parts 25 are symmetrically fixed on both sides of the first fixed ring of the second hydraulic cylinder 23. During the rotation of the second hydraulic cylinder 23, the second hydraulic cylinder 23 rotates in the U-shaped fixed seat 251 through the support of the two rotating shafts 252.

[0072] The other ends of the two rotating shafts 252 in the second group of rotating parts 25 are symmetrically fixed to the two sides of the fourth fixed ring. During the extension and retraction of the piston rod of the third hydraulic cylinder 23, the cylinder body of the third hydraulic cylinder 23 and the U-shaped fixing seat 251 can rotate through the support of the two rotating shafts 252.

[0073] In summary, the height measurement system for shaped coal cakes provided by the utility model has two height measurement modes, and can timely measure the height of the shaped coal cakes 8 with high measurement accuracy.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A height measurement system for tampering with coal cakes, characterized in that: include: A measuring instrument (1), a rotating bracket (2), a connecting plate (3) and a master controller, wherein one end of the rotating bracket (2) is fixed to the top (7) of the tamping coal box, and the measuring instrument (1) is connected to the other end of the rotating bracket (2) via the connecting plate (3); The measuring instrument (1) comprises two rangefinders (11), a power adapter (12), a housing (13), an air interface (16) and a controller (15); the two rangefinders (11) are fixed vertically and parallelly on a first side surface (131) of an inner wall of the housing (13); two first through holes are provided vertically and parallelly on the top of a third side surface (133) of the housing (13); the positions of the transmitting ends of the two rangefinders (11) correspond to the positions of the two first through holes; the power adapter (12) and the controller (15) are both connected to the housing (13); The air interface (16) is fixed to the second side surface (132) of the inner wall of the shell (13), one end of the air interface (16) is connected to the fourth side surface (134) of the shell (13), and the other end of the air interface (16) is connected to an external air compressor. The shell (13) is also provided with a second through hole (14), and the input end of the power adapter (12) is connected to an external power source through the second through hole (14), and the output end of the power adapter (12) is connected to both the power input end of the rangefinder (11) and the power input end of the controller (15); The bottom of the housing (13) is fixedly connected to a side surface of the connecting plate (3); The two rangefinders (11) are electrically connected to the controller (15), and the controller (15) and the rotating bracket (2) are both electrically connected to the master controller.

2. A coal cake height measurement system according to claim 1, characterized in that: The rotating bracket (2) comprises: a support member (21), a motor (22), three hydraulic cylinders (23), a plurality of sliding members (24), two groups of rotating members (25) and a connecting seat (26); the motor (22) is vertically fixed to the box top (7) of the tamping coal box; the output shaft of the motor (22) is connected to the cylinder end of the first hydraulic cylinder (23) through the support member (21); the piston rod end of the first hydraulic cylinder (23) is connected to the top surface of the connecting seat (26); the cylinder end of the second hydraulic cylinder (23) is rotatably connected to a side surface of the connecting seat (26) through the first rotating member (25); the cylinder end of the third hydraulic cylinder (23) is rotatably connected to the outer cylinder wall of the first hydraulic cylinder (23) through the second rotating member (25); the piston rod end of the third hydraulic cylinder (23) is slidably connected to the outer cylinder wall of the second hydraulic cylinder (23) through a plurality of sliding members (24); The piston rod end of the second hydraulic cylinder (23) is connected to the other side surface of the connecting plate (3); The motor (22) and the three hydraulic cylinders (23) are all electrically connected to the master controller.

3. A coal cake height measurement system according to claim 1 or 2, characterized in that: Also includes: A coal leveling machine (4), a fixing bracket (5) and an inclination sensor (6); The coal leveling machine (4) comprises a coal leveling car (41), a coal leveling wheel (42), a drag rod (43) and a connecting shaft (44); the coal leveling wheel (42) is rollingly connected to the top surface of the coal cake (8); the coal leveling car (41) is located on one side of the coal cake (8); one end of the drag rod (43) is fixedly connected to the top of the coal leveling wheel (42); the other end of the drag rod (43) is rotatably connected to one end of the connecting shaft (44); the other end of the connecting shaft (44) is fixedly connected to one side of the coal leveling car (41); the fixed bracket (5) is fixed to the top of the other end of the drag rod (43); and the inclination sensor (6) is connected to the fixed bracket (5); The inclination sensor (6) is electrically connected to the main controller.

4. A coal cake height measurement system according to claim 2, characterized in that: The support member (21) comprises: two T-shaped support rods (211), a first support plate (212), a second support plate (213) and two connecting buckles (214); the cross-sectional shape of the first support plate (212) is circular, the cross-sectional shape of the second support plate (213) is annular, the diameter of the first support plate (212) is smaller than the inner diameter of the second support plate (213), one side of the first support plate (212) is connected to the output shaft of the motor (22), the other side of the first support plate (212) is connected to the cylinder end of the first hydraulic cylinder (23), and the second support plate (214) is connected to the cylinder end of the first hydraulic cylinder (23). (213) is sleeved on the outer periphery of the first support plate (212), the bottom of the second support plate (213) and the bottom of the first support plate (212) are connected by two symmetrically distributed connecting buckles (214), the two T-shaped support rods (211) are symmetrically clamped in the gap between the first support plate (212) and the second support plate (213), the ends of the vertical parts of the two T-shaped support rods (211) are fixed to the box top (7) of the tamping coal box, and the horizontal part of the T-shaped support rod (211) is in contact with the bottom of the first support plate (212) and the bottom of the second support plate (213).

5. The height measurement system for tampering coal cakes according to claim 2 is characterized in that: Each group of the sliding members (24) comprises: a slide groove (241), a slider (242) and a connecting rod (243); the notch of the slide groove (241) faces outward, and the slide groove (241) is fixed to the outer wall of the cylinder body of the second hydraulic cylinder (23); the slider (242) is slidably connected to the slide groove (241); one end of the connecting rod (243) is connected to the slider (242); and the other end of the connecting rod (243) is connected to the end of the piston rod of the third hydraulic cylinder (23); The plurality of slide grooves (241) in the plurality of groups of sliding members (24) are circumferentially fixed on the outer wall of the cylinder body of the second hydraulic cylinder (23).

6. A coal cake height measurement system according to claim 2, characterized in that: Each group of the rotating members (25) comprises: a U-shaped fixing seat (251) and two rotating shafts (252), one end of the two rotating shafts (252) being rotatably connected to a first side surface and a second side surface opposite to the U-shaped fixing seat (251) respectively; The other ends of the two rotating shafts (252) of the first group of rotating members (25) are symmetrically fixed to the outer wall of the cylinder body of the second hydraulic cylinder (23), and the third side surface of the U-shaped fixing seat (251) is fixedly connected to one side surface of the connecting seat (26); The other ends of the two rotating shafts (252) of the second group of rotating members (25) are symmetrically fixed to the outer wall of the cylinder body of the first hydraulic cylinder (23), and the third side surface of the U-shaped fixing seat (251) is fixedly connected to the cylinder body end of the third hydraulic cylinder (23).

Images