Coal colloid layer thickness detection device

Abstract

The present application provides a device for detecting the thickness of a coal colloid layer, which belongs to the technical field of thickness detection, and includes a detection platform, a heating furnace, a coal cup, a pressure plate body, a pressure plate rod, a thermocouple, cigarette paper and a probe. A U-shaped groove is provided through the top of the pressure plate rod, a pillar is installed on the U-shaped groove, support rods are symmetrically installed on the detection platform, levers are hinged on the support rods, a heavy weight is placed on the suspended end of the lever, the lever is tangent to the pillar on the inner side wall of the U-shaped groove, the lever and the pillar are slidably connected, a limit rod group is sleeved on the support rod, a clamping groove is opened on the limit rod group, a sliding matching assembly is installed on the detection platform, and a sliding limit assembly is installed on the limit rod group; the present application can limit the pressure plate rod by the limit rod, ensure that the pressure plate rod remains vertical during the downward movement, ensure the accuracy of the detection data, and at the same time make the connection operation of the lever and the pressure plate rod easier.

Description

Technical Field

[0001] The present application relates to the technical field of thickness detection, and in particular to a device for detecting the thickness of a coal colloid layer. Background Art

[0002] The thickness of the coal colloidal layer refers to the maximum vertical thickness of the area inside the coal sample where soft coal is transformed into semi-coke during the heating process. The measurement data of the colloidal layer is one of the important indicators for the classification of coking coal, and has a direct impact on the utilization rate of coal resources and the stability of coke quality. The operation steps include the preparation of the coal sample, loading into the coal cup, heating, cooling and data recording. During the heating process, the equipment will record the volume change curve of the coal sample, and use a probe to measure the height of the upper and lower layers of the coal sample at the appropriate temperature point to determine the maximum thickness of the colloidal layer.

[0003] Referring to the Chinese patent document with authorization announcement number CN213543512U and announcement date June 25, 2021, the name is "A test colloid layer measuring instrument", which includes a pressure device, a probe device and a control system. When the weight moves downward, the pressure plate is driven downward by the weight push rod and the pressure plate push rod to apply pressure to the coal sample. The telescopic manipulator drives the probe to detect the upper and lower layers of the colloid body. The pull rod displacement sensor detects and records the displacement, which is convenient for calculating the maximum thickness value of the colloid layer.

[0004] Referring to the above technical solution, the weights on both sides press the lever downward. When the weights of the symmetrical weights on both sides are inconsistent, the center of gravity of the lever connected by the pin in the middle part is offset, and the lever is prone to shaking and tilting. Therefore, when the lever tilts, the top rod on the pressure plate body is tilted, which may cause one side of the pressure plate body to be close to or stuck to the inner wall of the coal cup, causing the local pressure in the coal cup to change, which may cause the probe hole to be misaligned, affecting the insertion of the probe, and thus affecting the accuracy of the test results. Summary of the invention

[0005] In view of this, the present application provides a coal colloid layer thickness detection device, which is mainly used to solve the problem of the pressure plate rod tilting during the downward movement.

[0006] In order to solve the above-mentioned technical problems, the present application provides a coal colloid layer thickness detection device, including a detection platform, a heating furnace, a coal cup, a pressure plate body, a pressure plate rod, a thermocouple, cigarette paper and a probe; a U-shaped groove is provided through the top of the pressure plate rod, a pillar is installed on the U-shaped groove, and support rods are symmetrically installed on the detection platform, and levers are hinged on the support rods, and a heavy weight is placed on the suspended end of the lever, the lever is tangent to the pillar on the inner side wall of the U-shaped groove, and the lever and the pillar are slidably connected; a limit rod group for vertically limiting the pressure plate rod is sleeved on the support rod, and a clamping groove for clamping the pressure plate rod is opened on the limit rod group; a sliding fitting assembly is installed on the detection platform, and the sliding fitting assembly can support the sliding trajectory of the free end of the lever, and a pressure plate rod vertical sliding limit assembly is installed on the limit rod group.

[0007] By adopting the above technical solution, when the lever is placed in the U-shaped groove at the top of the pressure plate rod and is tangent to the pillar, the weight continuously applies pressure to one end of the lever. Since the clamping groove on the limit rod group limits the pressure plate rod vertically, the pressure plate rod will drive the pressure plate body to move vertically downward, and the pressure at the bottom of the pressure plate body will not change locally, which can ensure the stability of the detection environment and the accuracy of the detection data, while making the connection operation of the lever and the pressure plate rod easier.

[0008] Optionally, the sliding fitting assembly includes a fixed rod, a triangular bracket, a first tightening ring, a vertical rod, a cross rod, a second tightening ring and a support rod. The fixed rod is fixedly mounted on the detection table, the triangular bracket is sleeved on the fixed rod, the first tightening ring is installed at the corner of the triangular bracket, the vertical rod is sleeved on the first tightening ring, the cross rod is sleeved on the top of the vertical rod, the second tightening ring is installed on one end of the cross rod, the support rod is sleeved on the second tightening ring, and the other end of the support rod is connected to the suspended end of the lever.

[0009] By adopting the above technical solution, when one end of the lever is pressed by a weight, one end of the lever undergoes an arc displacement around the hinged end of the lever, and with the cooperation of the sliding fitting assembly, the end of the lever can be supported to undergo an arc displacement.

[0010] Optionally, the sliding limit assembly includes an L-shaped sliding plate, a telescopic spring, a limit head and a limit groove, the L-shaped sliding plate is installed on the limit rod group, the L-shaped sliding plate is provided with a telescopic spring located inside the limit rod group, one end of the telescopic spring is connected to the inner side wall of the L-shaped sliding plate, and the other end is connected to the inner side wall of the internal cavity structure of the limit rod group, the L-shaped sliding plate is provided with a limit head that penetrates the inner side wall of the clamping groove, the side wall of the pressure plate rod is vertically opened, the limit groove and the limit head are relatively fixed, and when the pressure plate rod moves up and down, the limit groove moves relatively.

[0011] By adopting the above technical solution, the L-shaped sliding plate can be driven to reciprocate and retract under the elastic force of the telescopic spring, so that the limit head is installed inside the limit groove. When the pressure plate rod slides downward, the pressure plate rod can be further limited to prevent the pressure plate rod from shifting when applying downward pressure on the pressure plate body.

[0012] Optionally, the limiting rod group includes a first limiting rod and a second limiting rod, and the first limiting rod and the second limiting rod are hingedly connected via a hinge.

[0013] By adopting the above technical solution, the first limiting rod is connected to the second limiting rod by a hinge, and when the device is idle, it is convenient for the staff to fold and store the first limiting rod and the second limiting rod.

[0014] Optionally, an isolation cover is installed on the second limiting rod, and a smoke exhaust chimney is arranged at the upper center of the heating furnace.

[0015] By adopting the above technical scheme, the isolation cover can isolate the high temperature and smoke generated by the heating furnace, keeping them inside the isolation cover, ensuring that personnel will not be scalded during operation; the smoke generated during the heating process can be discharged from the chimney, protecting the thermocouple, probe, lever and other components above the coal cup, preventing the thermocouple, probe and lever from aging and damage due to long-term high temperature and smoke.

[0016] Optionally, a guide tube for guiding the probe is installed on the cigarette paper.

[0017] By adopting the above technical solution, when inserting the probe to measure the thickness of the colloid layer, the cigarette paper jack is connected to the pressing plate jack, which facilitates the insertion of the probe through the guide tube sleeved on the cigarette paper, thereby ensuring that the probe is inserted vertically.

[0018] Optionally, auxiliary rods are symmetrically installed on the detection platform, and a rotating baffle is installed on the inner wall of the lever.

[0019] By adopting the above technical solution, when the lever is placed on the pillar inside the U-shaped groove, the rotating baffle can be rotated so that the auxiliary rod is located inside the rotating baffle. When the lever undergoes an arc displacement, the lever undergoes an arc displacement on the same horizontal plane, which can further limit the lever.

[0020] Optionally, a rotating shaft ring is installed on the support rod, and the lever is hinged to the support rod through the rotating shaft ring.

[0021] By adopting the above technical solution, when the coal cup is placed in the heating furnace, there may be a certain deviation in the angle. The pressure plate rod can be rotated around the support rod at a certain angle through the rotating axis so that the lever can accurately fall into the U-shaped groove above the pressure plate rod.

[0022] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When the pressure plate rod moves up and down, the limit head is clamped in the limit groove of the pressure plate rod. During the up and down movement of the pressure plate rod, the pressure plate rod can be ensured to move in the vertical direction to prevent local changes in the pressure on the bottom of the pressure plate body, thereby ensuring the stability of the detection environment and the accuracy of the detection data. At the same time, the tangential sliding between the top of the pressure plate rod and the lever can make the connection operation of the lever and the pressure plate rod easier.

[0024] 2. By adding an isolation cover and an exhaust chimney to the device, the high temperature generated by the heating furnace can be isolated to ensure that personnel will not be scalded during operation. The smoke is discharged from the exhaust chimney to prevent the smoke from fumigating the device and protect the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the coal colloid layer thickness detection device of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of the isolation cover, exhaust chimney and limit rod group of this application;

[0027] Figure 3 A schematic diagram of the structure of the lever and coal cup for this application;

[0028] Figure 4 A cross-sectional view of the coal cup for this application;

[0029] Figure 5 This is a schematic diagram of the structure of the limit rod group of this application;

[0030] Figure 6 This is a cross-sectional view of the limiting rod assembly of this application.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. test table; 11. heating furnace; 12. support rod; 121. rotating shaft ring; 13. lever; 14. weight; 15. exhaust chimney; 16. auxiliary rod; 17. rotating baffle; 2. coal cup; 3. pressure plate body; 31. cigarette paper; 32. probe; 33. guide tube; 4. pressure plate rod; 41. U-shaped groove; 42. support; 43. clamping groove; 6. limit rod group; 61. first limit rod; 62. second limit rod; 7. sliding fitting assembly; 71. fixed rod; 72. triangular bracket; 73. first tightening ring; 74. vertical rod; 75. horizontal rod; 76. second tightening ring; 77. support rod; 8. sliding limit assembly; 81. L-shaped sliding plate; 82. telescopic spring; 83. limit head; 84. limit groove; 9. isolation cover. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 6 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The present embodiment provides a device for detecting the thickness of a coal colloid layer, comprising a detection platform 1, a heating furnace 11 is installed on the detection platform 1, a coal cup 2 is placed inside the heating furnace 11, a pressure plate body 3 is installed inside the coal cup 2, a pressure plate rod 4 is extended upward from the center of the pressure plate body 3, a thermocouple and cigarette paper 31 are inserted through the through holes of the pressure plate body 3, and a probe 32 is inserted through the cigarette paper 31 when detecting the thickness of the colloid layer.

[0034] A U-shaped groove 41 is provided through the top of the pressure plate rod 4, and a pillar 42 is installed on the U-shaped groove 41. Support rods 12 are symmetrically installed on the testing platform 1, and levers 13 are hinged on the support rods 12. A weight 14 is placed on the suspended end of the lever 13. The lever 13 is tangent to the pillar 42 on the inner wall of the U-shaped groove 41, and the lever 13 and the pillar 42 are slidably connected.

[0035] The support rod 12 is sleeved with a limiting rod group 6 for vertically limiting the pressure plate rod 4 , and the limiting rod group 6 is provided with a clamping groove 43 for clamping the pressure plate rod 4 .

[0036] The detection platform 1 is provided with a sliding fit assembly 7 , which can support the sliding track of the free end of the lever 13 , and the limiting rod group 6 is provided with a vertical sliding limit assembly 8 of the pressure plate rod 4 .

[0037] Put raw materials into the coal cup 2 and put the coal cup 2 into the heating furnace 11, rotate the lever 13 around the hinged end of the lever 13, place the lever 13 on the pillar 42 inside the U-shaped groove 41, and the lever 13 is tangent to the pillar 42 inside the U-shaped groove 41. By rotating the limiting rod group 6, the clamping groove 43 on the limiting rod group 6 is clamped on the side wall of the pressure plate rod 4 to limit the pressure plate rod 4. During the up and down movement of the pressure plate rod 4, the pressure plate rod 4 is kept moving vertically downward.

[0038] During the heating process of the raw materials inside the coal cup 2, a weight 14 is continuously added to the suspended end of the lever 13, so that the lever 13 applies pressure to the pressure plate rod 4, and then the pressure plate body 3 moves downward to apply pressure to the raw materials. At different heating temperatures, a probe 32 is inserted into the cigarette paper 31 to measure data.

[0039] Reference Figure 1 The sliding fitting assembly 7 includes a fixed rod 71, a triangular bracket 72, a first tightening ring 73, a vertical rod 74, a cross rod 75, a second tightening ring 76 and a support rod 77. The fixed rod 71 is fixedly mounted on the detection platform 1, the triangular bracket 72 is sleeved on the fixed rod 71, the first tightening ring 73 is installed at the corner of the triangular bracket 72, the vertical rod 74 is sleeved on the first tightening ring 73, the cross rod 75 is sleeved on the top of the vertical rod 74, the second tightening ring 76 is installed at one end of the cross rod 75, the support rod 77 is sleeved on the second tightening ring 76, and the other end of the support rod 77 is connected to the suspended end of the lever 13.

[0040] When one end of the lever 13 is subjected to pressure and moves in an arc shape around the hinged end of the lever 13 , the support rod 77 is pulled by the lever 13 and gradually moves downward, and the cross bar 75 gradually moves to the left. The sliding fitting assembly 7 is used to assist the movable end of the lever 13 in the arc displacement.

[0041] Reference Figure 4 , Figure 5 and Figure 6 The sliding limit assembly 8 includes an L-shaped sliding plate 81, a telescopic spring 82, a limit head 83 and a limit groove 84. The L-shaped sliding plate 81 is installed on the limit rod group 6. The L-shaped sliding plate 81 is provided with a telescopic spring 82 located inside the limit rod group 6. One end of the telescopic spring 82 is connected to the inner side wall of the L-shaped sliding plate 81, and the other end is connected to the inner side wall of the internal cavity structure of the limit rod group 6. The L-shaped sliding plate 81 is provided with a limit head 83 that penetrates the inner side wall of the clamping groove 43. A limit groove 84 is vertically opened on the side wall of the pressure plate rod 4. The limit groove 84 is relatively fixed to the limit head 83. When the pressure plate rod 4 moves up and down, the limit groove 84 moves relatively.

[0042] When the locking groove 43 on the limit rod group 6 contacts the side wall of the pressure plate rod 4, the L-shaped sliding plate 81 is driven by the telescopic spring 82 and expands and contracts when subjected to external pressure, and through the telescopic force of the telescopic spring 82, when the locking groove 43 is completely locked on the pressure plate rod 4, the limit head 83 is locked inside the limit groove 84 on the side wall of the pressure plate rod 4.

[0043] Reference Figure 5 The limiting rod group 6 includes a first limiting rod 61 and a second limiting rod 62, and the first limiting rod 61 and the second limiting rod 62 are hinged by a hinge.

[0044] The second limiting rod 62 can be folded onto the first limiting rod 61 through a hinge.

[0045] Reference Figure 1 , Figure 2 and Figure 4An isolation cover 9 is installed on the second limiting rod 62, and a smoke exhaust chimney 15 is arranged at the upper center of the heating furnace 11.

[0046] When the heating furnace 11 is heating, the isolation cover 9 can isolate the high temperature and smoke from the lever 13, the limit rod group 6 and the top of the pressure plate rod 4, and the smoke generated during heating is discharged from the exhaust chimney 15.

[0047] Reference Figure 3 and Figure 4 A guide tube 33 for guiding the probe 32 is installed on the cigarette paper 31.

[0048] When the probe 32 is inserted, the guide tube 33 guides the probe 32 to a limited position.

[0049] Reference Figure 1 , Figure 4 and Figure 5 An auxiliary rod 16 is symmetrically installed on the detection platform 1, and a rotating baffle 17 is installed on the inner side wall of the lever 13.

[0050] When the lever 13 is placed on the support 42 inside the U-shaped groove 41 , the rotating baffle 17 is rotated so that the auxiliary rod 16 is located inside the rotating baffle 17 , and the lever 13 is displaced in an arc shape on the same plane.

[0051] Reference Figure 1 A rotating shaft ring 121 is installed on the support rod 12, and the lever 13 is hinged to the support rod 12 through the rotating shaft ring 121.

[0052] The rotating shaft ring 121 drives the lever 13 to rotate around the central axis of the rotating shaft ring 121 , so that the lever 13 corresponds to the top of the U-shaped groove 41 on the pressure plate rod 4 .

[0053] The implementation principle of the coal colloid layer thickness detection device in the embodiment of the present application is:

[0054] Before detecting the thickness of the coal colloid layer, install the pressure plate body 3 and the pressure plate rod 4 inside the coal cup 2, insert the cigarette paper 31 into the hole of the pressure plate body 3, and insert the guide tube 33 on the cigarette paper 31, and put them into the coal cup 2 together, place it on the heating furnace 11, pull out the metal rod, insert the thermocouple, place the lever 13 inside the U-shaped groove 41 on the pressure plate rod 4, and fix the chimney 15 on the heating furnace 11.

[0055] Rotate the limit rod group 6 to make the clamping groove 43 on the limit rod group 6 contact the side wall of the pressure plate rod 4 to limit the vertical movement of the pressure plate rod 4. Driven by the telescopic spring 82, the L-shaped sliding plate 81 expands and contracts when subjected to external pressure, and through the telescopic force of the telescopic spring 82, when the clamping groove 43 completely clamps the pressure plate rod 4, the limit head 83 is clamped in the limit groove 84 on the side wall of the pressure plate rod 4 to limit the vertical movement of the pressure plate rod 4. During the heating process, the probe 32 is inserted from the perforation above the guide tube 33, and measurements are taken under different temperature conditions to ensure the accuracy of the measurement data.

[0056] The movement of the limiting rod group 6 drives the isolation cover 9 to move synchronously, and isolates the heat generated by the heating furnace 11 from the upper part of the device, and the smoke generated during heating is discharged from the exhaust chimney 15.

[0057] When the isolation cover 9 and the limiting rod set 6 need to be withdrawn, the L-shaped sliding plate 81 is slid to make the limiting head 83 disengage from the limiting groove 84, and the isolation cover 9 and the limiting rod set can be moved out.

[0058] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A device for detecting the thickness of a coal colloid layer, comprising a detection platform, a heating furnace, a coal cup, a pressure plate body, a pressure plate rod, a thermocouple, cigarette paper and a probe, characterized in that: A U-shaped groove is provided through the top of the pressure plate rod, a pillar is installed on the U-shaped groove, support rods are symmetrically installed on the testing platform, levers are hinged on the support rods, a weight is placed on the suspended end of the lever, the lever is tangent to the pillar on the inner side wall of the U-shaped groove, and the lever and the pillar are slidably connected; The support rod is sleeved with a limit rod group for vertically limiting the pressure plate rod, and the limit rod group is provided with a clamping groove for clamping the pressure plate rod; The detection table is equipped with a sliding fit component, which can support the sliding track of the free end of the lever, and the limit rod group is equipped with a sliding limit component that is limited to the vertical sliding of the pressure plate rod; The sliding limit assembly comprises an L-shaped sliding plate mounted on the limit rod group, the L-shaped sliding plate is provided with a telescopic spring located inside the limit rod group, the L-shaped sliding plate is provided with a limit head penetrating the inner side wall of the clamping groove, and the side wall of the pressure plate rod is vertically provided with a limit groove adapted to the limit head; When the locking groove on the limit rod group contacts the side wall of the pressure plate rod, the L-shaped sliding plate is driven by the telescopic spring and expands and contracts under external pressure, and through the telescopic force of the telescopic spring, when the locking groove is completely locked on the pressure plate rod, the limit head is locked inside the limit groove on the side wall of the pressure plate rod.

2. The device for detecting the thickness of the coal colloid layer according to claim 1, characterized in that: The sliding fitting assembly includes a fixed rod fixedly mounted on the detection table, a triangular bracket is sleeved on the fixed rod, a first tightening ring is installed at the corner of the triangular bracket, a vertical rod is sleeved on the first tightening ring, a cross rod is sleeved on the top of the vertical rod, a second tightening ring is installed on the cross rod, and a support rod sleeved inside the second tightening ring is provided at the suspended end of the lever.

3. The device for detecting the thickness of the coal colloid layer according to claim 1, characterized in that: The limiting rod group comprises a first limiting rod and a second limiting rod, and the first limiting rod and the second limiting rod are hingedly connected via a hinge.

4. The device for detecting the thickness of the coal colloid layer according to claim 3 is characterized in that: An isolation cover is installed on the second limiting rod, and a smoke exhaust chimney is arranged at the center of the upper part of the heating furnace.

5. The device for detecting the thickness of the coal colloid layer according to claim 1, characterized in that: A guide tube for guiding the probe is installed on the cigarette paper.

6. The device for detecting the thickness of the coal colloid layer according to claim 1, characterized in that: Auxiliary rods are symmetrically installed on the detection platform, and a rotating baffle is installed on the inner side wall of the lever.

7. The device for detecting the thickness of the coal colloid layer according to claim 1, characterized in that: A rotating shaft ring is installed on the support rod, and the lever is hinged to the support rod through the rotating shaft ring.

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