A furnace structure for coke strength detection

Abstract

The present application discloses a furnace structure for coke strength detection, which relates to the field of coke strength detection, including a reactor and a reaction tube fixedly arranged at the upper end of the reactor, and also including: a filter screen, the peripheral side of the filter screen is fixedly connected to the inner side wall of the lower end of the reaction tube; a rotating shaft, the upper end of the rotating shaft is rotatably connected to the reaction tube through a fixed plate, the lower end of the rotating shaft is rotatably connected to the filter screen, the lower end of the rotating shaft penetrates the filter screen, the rotating shaft is arranged at the upper end of the filter screen and is provided with a thread; a fan, the lower end of the fan rotating shaft penetrates the filter screen and is fixedly connected; a collecting plate, the collecting plate is fixedly arranged at the connection between the reaction tube and the reactor, and the upper end of the collecting plate is circumferentially provided with air holes; a dredging component, the dredging component is arranged at the upper end of the filter screen for dredging through the filter screen; a cleaning component, the cleaning component is arranged at the lower end of the filter screen for collecting flying dust; the present application has the effect of reducing the problem that flying dust generated during the reaction of coke blocks the reaction tube and affects the normal use of the device.

Description

Technical Field

[0001] The present application relates to the field of coke strength detection, and in particular to a furnace structure for coke strength detection. Background Art

[0002] Coke strength testing refers to the ability of coke to resist cracking, deterioration and wear under mechanical force and thermal stress after the coke reaction. In the coke strength test, the coke needs to be placed in the reactor first, and then the reactor is placed in the furnace for constant temperature heating reaction.

[0003] A related coke reactivity detection device includes a reactor, a vacuum pump and a reaction tube. Coke is placed in the reactor and then the vacuum pump is started so that during the reaction, the carbon monoxide in the furnace can be discharged through the reaction tube under the action of the vacuum pump.

[0004] Since coke produces flying dust during the reaction process, when the vacuum pump discharges gas, the flying dust will be sucked into the reaction tube. After long-term use, the flying dust will adhere to the inside of the reaction tube and the vacuum pump, thereby blocking the reaction tube and the vacuum pump, affecting the normal use of the device. Summary of the Invention

[0005] In order to reduce the problem of flying dust generated during the reaction of coke clogging the reaction tube and affecting the normal use of the device, the present application provides a furnace structure for coke strength detection.

[0006] The present application provides a furnace structure for coke strength testing, which adopts the following technical solution:

[0007] A furnace structure for coke strength testing includes a reactor and a reaction tube fixed at the upper end of the reactor, and further includes:

[0008] a filter screen, wherein the peripheral side of the filter screen is fixedly connected to the inner side wall of the lower end of the reaction tube;

[0009] A rotating shaft, wherein the upper end of the rotating shaft is rotatably connected to the reaction tube through a fixed plate, the lower end of the rotating shaft is rotatably connected to the filter screen, the lower end of the rotating shaft passes through the filter screen, and the rotating shaft is disposed on the upper end of the filter screen and is provided with a thread;

[0010] a fan, the fan being fixedly connected to the lower end of the rotating shaft passing through the filter;

[0011] A receiving plate, the receiving plate is fixedly arranged at the connection between the reaction tube and the reaction furnace, and the upper end of the receiving plate is circumferentially provided with air holes;

[0012] A dredging component is provided at the upper end of the filter screen and is used to dredge the filter screen;

[0013] A cleaning component is arranged at the lower end of the filter screen and is used for collecting flying dust.

[0014] By adopting the above technical solution, the presence of the filter can effectively collect fly ash, while preventing it from affecting test results. The installation of the vacuum pump and fan can enhance air circulation within the reactor, promoting the combustion and reaction of the coke. Thanks to the presence of the collecting plate, the fly ash generated during the reaction can be fully collected by the unblocking and cleaning components, thus reducing the risk of fly ash generated during the reaction from clogging the reaction tube and affecting the normal operation of the device.

[0015] Optionally, the cleaning component includes:

[0016] a connecting plate, the connecting plate being fixedly mounted on a circumferential side of the rotating shaft, the upper end of the connecting plate being rotatably connected to the lower end of the filter screen;

[0017] The telescopic scraper has one end fixed on the peripheral side of the connecting plate and the other end is a free end.

[0018] By adopting the above technical solution, the presence of the connecting plate increases the stability between the rotating shaft and the telescopic scraper, avoiding shaking or damage of the telescopic scraper due to the rotation of the rotating shaft. The presence of the telescopic scraper enables the telescopic scraper to remove the flying dust on the upper and lower ends of the filter net when the rotating shaft rotates, which is simple and convenient.

[0019] Optionally, a matching groove is axially provided on the circumference of the reaction tube, and a movable groove is vertically provided on the upper end of the matching groove. The dredging component includes:

[0020] a bellows, the bellows being axially telescopically disposed in the matching groove, the end of the bellows being fixedly connected to the bottom wall of the matching groove, and the head end of the bellows being in contact with the free end of the telescopic scraper;

[0021] A dredging plate, the dredging plate is rotatably arranged on the rotating shaft through a guide member, and a dredging needle is axially arranged at the lower end of the dredging plate;

[0022] A support member, the support member is arranged in the movable groove and is used to support the dredging plate;

[0023] A communicating pipe, one end of which is communicated with the bellows, and the other end of which is communicated with the supporting member.

[0024] By adopting the above technical solution, the presence of the bellows allows the telescopic scraper to compress the bellows as it rotates, and the dredging plate can move up and down under the action of the guide member, thereby prompting the dredging plate to dredge the filter screen. The presence of the support member fixes the position of the dredging plate, increasing its stability. The connecting pipe realizes the interaction between the bellows and the dredging plate, thereby allowing the dredging plate to dredge the filter screen, which is simple and easy to operate.

[0025] Optionally, the guide member includes:

[0026] A guide plate, the guide plate is coaxially arranged with the dredging plate and is threadedly connected to the rotating shaft;

[0027] A guide rod is arranged parallel to the rotating shaft, one end of the rotating shaft is fixedly connected to the lower end of the connecting plate, and the other end is fixedly connected to the upper end of the filter screen.

[0028] By adopting the above technical solution, the presence of the guide plate and the guide rod allows the dredging plate to move up and down along the axial direction of the rotating shaft, which is simple and convenient.

[0029] Optionally, the support member includes:

[0030] a telescopic rod, the telescopic rod being transversely fixed to the bottom wall of the movable groove, a first spring being fixed in the rodless cavity of the telescopic rod, one end of the first spring being fixedly connected to the bottom wall of the rodless cavity of the telescopic rod, and the other end being fixedly connected to one end of the telescopic end of the telescopic rod being placed in the rodless cavity;

[0031] A matching plate, one end of which is fixed to the peripheral side of the dredging plate, and a lower end of which contacts the telescopic end of the telescopic rod;

[0032] A second spring, one end of the second spring is fixed to the upper side wall of the movable groove, and the other end of the second spring is fixed to the upper end of the matching plate.

[0033] By adopting the above technical solution, the presence of the matching plate and the telescopic rod allows the position of the dredging plate to be fixed when the dredging plate is not dredging, and the second spring is used to drive the matching plate to reset, thereby increasing the stability of the dredging plate.

[0034] Optionally, a push rod is provided at the lower end of the dredging plate, the push rod is fixedly connected to the lower end of the dredging plate, and the other end passes through the filter screen; the rotating shaft is located at the lower end of the filter screen and is vertically provided with a slide groove, and a third elastic member is fixed in the slide groove, one end of the third elastic member is fixedly connected to the lower side of the slide groove, and the other end is fixedly connected to the lower end of the connecting plate, and the mating groove is located on one side of the support member and is provided with a first guide slope.

[0035] By adopting the above technical solution, the presence of the push rod and the third spring enables the telescopic scraper to be pushed away from the bellows when the telescopic scraper rotates to the position of the first guide slope, thereby resetting the bellows.

[0036] Optionally, a protrusion is fixedly provided on the reaction tube at the position of the fan, and a plurality of protrusions are arranged at intervals along the circumference of the reaction tube.

[0037] By adopting the above technical solution, the setting of the protrusion causes the fan blades to vibrate when passing through the protrusion, thereby shaking off the flying dust on the fan blades, which is simple and convenient.

[0038] Optionally, gas is provided in the bellows.

[0039] By adopting the above technical solution, the arrangement of the gas enables the bellows to automatically reset itself and simultaneously push the support member to move.

[0040] In summary, the embodiment of the present invention provides a furnace structure for coke strength detection, which has at least one of the following beneficial technical effects:

[0041] 1. The presence of the filter can effectively collect fly ash and prevent it from affecting test results. The installation of the vacuum pump and fan can enhance the air circulation in the reactor, promoting the combustion and reaction of the coke. The presence of the collecting plate allows the fly ash generated during the reaction to be fully collected by the dredging and cleaning components, thus reducing the risk of fly ash generated during the reaction from clogging the reactor tube and affecting the normal operation of the device.

[0042] 2. The presence of the bellows allows the telescopic scraper to compress the bellows as it rotates, allowing the dredging plate to move up and down under the action of the guide, thereby prompting the dredging plate to dredge the filter screen. The presence of the support member fixes the position of the dredging plate and increases its stability. The connecting pipe realizes the interaction between the bellows and the dredging plate, thereby allowing the dredging plate to dredge the filter screen, making it simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic structural diagram of a furnace structure for coke strength testing provided by an embodiment of the present invention;

[0044] Figure 2 for Figure 1 Enlarged view of part A;

[0045] Figure 3 for Figure 2 Magnified view of part B.

[0046] Description of the symbols in the figure:

[0047] 11. Reactor; 12. Reaction tube; 13. Filter; 14. Rotating shaft; 15. Fan; 16. Receiving plate; 17. Fixed plate; 21. Connecting plate; 22. Telescopic scraper; 23. Matching groove; 24. Moving groove; 31. Bellows; 32. Clearing plate; 33. Connecting pipe; 4. Support member; 41. Telescopic rod; 42. Matching plate; 43. Second spring; 44. First spring; 5. Guide member; 51. Guide plate; 52. Guide rod; 61. Push rod; 62. Slide groove; 63. Third spring; 64. Protrusion; 65. First guide slope. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-3 This application is described in further detail.

[0049] Combine Figure 1 、 Figure 2 and Figure 3 The embodiment of the present application discloses a furnace body structure for testing coke strength, including: a filter screen 13, a rotating shaft 14, a fan 15, a material collecting plate 16, a dredging component and a cleaning component. The peripheral side of the filter screen 13 is fixedly connected to the inner side wall of the lower end of the reaction tube 12; the upper end of the rotating shaft 14 is rotatably connected to the reaction tube 12 through a fixing plate 17, and the lower end of the rotating shaft 14 is rotatably connected to the filter screen 13, and the rotating shaft 14 is arranged on the upper end of the filter screen 13 and is provided with a thread; the fan 15 rotating shaft 14 is fixedly connected to the lower end of the filter screen 13; the material collecting plate 16 is fixedly arranged at the connection between the reaction tube 12 and the reactor 11, and the upper end of the material collecting plate 16 is circumferentially provided with air holes; the dredging component is arranged at the upper end of the filter screen 13, for dredging through the filter screen 13; the cleaning component is arranged at the lower end of the filter screen 13, for collecting flying dust.

[0050] In an embodiment of the present application, the filter screen 13 is arranged in a disc shape, and the filter screen 13 is provided with filter holes at axial intervals. The rotating shaft 14 is arranged in a cylindrical shape. The fixed plate 17 is arranged perpendicular to the axis of the reaction tube 12. One end of the fixed plate 17 is fixed to the inner side of the reaction tube 12 by welding or bolting. The receiving plate 16 is arranged in a U shape, wherein the upper end of the receiving plate 16 is integrally formed with a disc, and the lower end is provided with a U-shaped groove for collecting flying dust.

[0051] During actual use, when the coke is reacting, the vacuum pump is turned on, causing the fan 15 to rotate, thereby driving the rotating shaft 14 to rotate, and then causing the cleaning component and the unblocking component to work, that is, the cleaning component cleans the flying dust attached to the lower end of the filter 13 into the receiving plate 16, and the unblocking component cleans the flying dust in the filter hole into the receiving plate 16, thereby reducing the flying dust generated by the coke during the reaction process to clog the reaction tube 12 and affect the normal use of the device.

[0052] Combine Figure 1 、 Figure 2 and Figure 3 In a specific embodiment, the cleaning assembly includes: a connecting plate 21 and a telescopic scraper 22. The connecting plate 21 is fixed to the peripheral side of the rotating shaft 14, and the upper end of the connecting plate 21 is rotatably connected to the lower end of the filter screen 13; one end of the telescopic scraper 22 is fixed to the peripheral side of the connecting plate 21, and the other end is a free end;

[0053] In the embodiment of the present application, the connecting plate 21 is arranged in a circular ring shape, the diameter of the connecting plate 21 is larger than the diameter of the rotating shaft 14, and the telescopic scraper 22 is arranged in a rectangular plate shape. It should be noted that the telescopic scraper 22 is extended and retracted through a slider and a sliding groove, and other sliding methods can also be used, which is not limited in the embodiment of the present application.

[0054] During actual use, when the rotating shaft 14 rotates, it drives the connecting plate 21 to rotate. Since the connecting plate 21 is fixedly connected to the telescopic scraper 22, when the connecting plate 21 rotates, the connecting plate 21 drives the telescopic scraper 22 to rotate, that is, the telescopic scraper 22 rotates axially along the lower end of the filter screen 13, so that the rotating shaft 14 can scrape off the flying dust at the lower end of the filter plate during the rotation process.

[0055] In a specific embodiment, a matching groove 23 is axially provided on the circumferential side of the reaction tube 12, and a movable groove 24 is vertically provided on the upper end of the matching groove 23. The dredging component includes: a bellows 31, a dredging plate 32, a support member 4, and a connecting pipe 33. The bellows 31 is axially telescopically arranged in the matching groove 23, and the end of the bellows 31 is fixedly connected to the bottom wall of the matching groove 23. The head end of the bellows 31 is in contact with the free end of the telescopic scraper 22; the dredging plate 32 is rotatably provided on the rotating shaft 14 through the guide member 5, and a dredging needle is axially provided at the lower end of the dredging plate 32; the support member 4 is provided in the movable groove 24 for supporting the dredging plate 32; one end of the connecting pipe 33 is connected to the bellows 31, and the other end is connected to the support member 4.

[0056] Among them, the support member 4 includes a telescopic rod 41, a matching plate 42, and a second spring 43. The telescopic rod 41 is laterally fixed to the bottom wall of the movable groove 24, and a first spring 44 is fixed in the rodless cavity of the telescopic rod 41. One end of the first spring 44 is fixedly connected to the bottom wall of the rodless cavity of the telescopic rod 41, and the other end is fixedly connected to the telescopic end of the telescopic rod 41 in one end of the rodless cavity; one end of the matching plate 42 is fixed to the peripheral side of the dredging plate 32, and the lower end of the matching plate 42 is in contact with the telescopic end of the telescopic rod 41; one end of the second spring 43 is fixed to the upper side wall of the movable groove 24, and the other end is fixed to the upper end of the matching plate 42.

[0057] The guide member 5 includes a guide plate 51, a guide rod 52 and a push rod 61. The guide plate 51 is coaxially arranged with the dredging plate 32, and the guide plate 51 is threadedly connected to the rotating shaft 14; the guide rod 52 is arranged parallel to the rotating shaft 14, one end of the rotating shaft 14 is fixedly connected to the lower end of the connecting plate 21, and the other end is fixedly connected to the upper end of the filter screen 13; the push rod 61 is fixedly connected to the lower end of the dredging plate 32, and the other end passes through the filter screen 13; the push rod 61 is arranged in a cylindrical shape.

[0058] In an embodiment of the present application, the matching groove 23 is a U-shaped annular groove, and the depth of the matching groove 23 is related to the number of turns of the bellows 31, that is, the more turns of the bellows 31, the deeper the depth of the matching groove 23. The matching groove 23 is located on one side of the support member 4 and is provided with a first guide slope 65. The movable groove 24 is arranged in a rectangular shape. It should be noted that the length of the movable groove 24 is sufficient for the dredging plate 32 to move. The specific length is set according to the specific usage conditions and will not be described in detail in the embodiment of the present application. The bellows 31 is made of rigid material, and gas is provided in the bellows 31. The dredging plate 32 is arranged in an annular hollow shape, and there is a gap between every two turns of dredging needles, thereby reducing consumables. The connecting pipe 33 can be a hose or a rigid pipe. It is only necessary to connect the telescopic rod 41 to the bellows 31.

[0059] The fixed end of the telescopic rod 41 is square-shaped, and the telescopic end is long plate-shaped. A partition plate is provided at one end of the telescopic end located at the fixed end, and the peripheral side of the partition plate is in contact with the fixed end of the telescopic rod 41. A second guide slope is provided at the end of the telescopic end close to the filter screen 13, and the matching plate 42 is rectangular. The shape of the matching plate 42 is similar to that of the telescopic end. It should be noted that a third guide slope is provided at the end of the matching plate 42 close to the fixed plate 17.

[0060] A slide groove 62 is vertically provided at the lower end of the rotating shaft 14 located at the filter screen 13. A third elastic member is fixed in the slide groove 62. One end of the third elastic member is fixedly connected to the lower side of the slide groove 62, and the other end is fixedly connected to the lower end of the connecting plate 21.

[0061] The guide plate 51 is annular in shape. Its diameter is larger than that of the rotating shaft 14 and smaller than that of the dredging plate 32. The guide plate 51, rotating shaft 14, dredging plate 32, and filter plate are coaxially arranged. A recess is provided at the lower end of the dredging plate 32, into which the guide plate 51 fits. The guide rod 52 is cylindrical in shape. Its length is sufficient to keep the dredging needle away from the filter hole.

[0062] In the embodiment of the present application, when the fan 15 rotates, it drives the rotating shaft 14 to rotate. As the rotating shaft 14 rotates, the telescopic scraper 22 rotates. The free end of the telescopic scraper 22 contacts the starting end of the bellows 31. Therefore, the telescopic scraper 22 squeezes the bellows 31 during the rotation process, thereby causing the bellows 31 to contract. Since the bellows 31 is rigid, the telescopic scraper 22 does not squeeze the outer ring of the bellows 31 during the rotation process. During the contraction of the bellows 31, the gas in the bellows 31 is squeezed, and then the gas enters the rod cavity of the telescopic rod 41 through the connecting pipe 33, and then the partition plate moves toward the bottom wall of the rodless cavity of the telescopic rod 41, compressing the first spring 44, and the telescopic end of the telescopic rod 41 moves into the fixed end, so that the movable end is separated from the mating plate 42, that is, the movable end and the mating plate 42 are not in low contact, and the connection is disconnected. Since the rotating shaft 14 is provided with a thread, the dredging plate 32 will be driven to rotate toward the filter screen 13 when it rotates, so that the dredging needle will clean the flying dust in the filter hole. Due to the existence of the first guide slope 65, when the telescopic scraper 22 rotates to the first guide slope 65, due to the existence of the push rod 61, the push rod 61 pushes the telescopic scraper 22 in the direction of the downward fan 15, so that the telescopic scraper 22 does not conflict with the bellows 31. Since the rotating shaft 14 keeps rotating, when the telescopic scraper 22 does not abut against the bellows 31, the elastic recovery potential energy of the third spring 63 causes the telescopic scraper 22 to be in contact with the filter screen 13. The lower end of the filter screen 13 is in conflict, and at the same time, the first spring 44 pushes the partition plate toward the rod cavity due to the elastic recovery potential energy of the spring, so that the gas in the rod cavity enters the bellows 31 through the connecting pipe 33, thereby restoring the bellows 31 to its original state, and the guide plate 51 slides upward due to the rotation of the rotating shaft 14. In the process of sliding upward, since the matching plate 42 and the telescopic end of the telescopic rod 41 respectively have a second guide inclined surface and a third guide inclined surface, when the guide plate 51 slides upward, it pushes the dredging plate 32 upward, and at the same time, the matching plate 42 squeezes the second spring 43, so that the dredging plate 32 returns to its original position.

[0063] Combine Figure 1 、 Figure 2 and Figure 3 In a specific embodiment, a protrusion 64 is fixedly provided at the position of the fan 15 in the reaction tube 12 , and a plurality of protrusions 64 are arranged at intervals along the circumference of the reaction tube 12 .

[0064] In the implementation of the present application, the protrusion 64 is in the shape of silicone, so that the blades of the fan 15 will vibrate due to the obstruction of the gas when rotating, thereby shaking off the flying dust on the blades into the receiving plate 16.

[0065] The working principle of the embodiment of the present application is as follows: when the coke needs to react, the vacuum pump works, and when the fan 15 rotates, the rotating shaft 14 is driven to rotate. The telescopic scraper 22 squeezes the bellows 31 during the rotation, causing the bellows 31 to contract. During the contraction of the bellows 31, the gas in the bellows 31 is squeezed, and then the gas enters the rod cavity of the telescopic rod 41 through the connecting pipe 33, and then the partition plate moves toward the bottom wall of the rodless cavity of the telescopic rod 41, compressing the first spring 44, and the telescopic end of the telescopic rod 41 moves to the fixed end. The movable end is separated from the matching plate 42, and the dredging plate 32 moves toward one end of the filter 13, so that the dredging needle cleans the flying dust in the filter hole. During the rotation of the fan 15, due to the existence of the protrusion 64, the fan blades of the fan 15 vibrate, so that the flying dust on the fan blades falls into the receiving plate 16. During the rotation of the rotating shaft 14, the telescopic scraper 22 cleans the flying dust under the filter 13 into the receiving plate 16, thereby reducing the flying dust generated by the coke during the reaction process to block the reaction tube 12 and affect the normal use of the device.

[0066] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A furnace structure for testing coke strength, comprising a reaction furnace (11) and a reaction tube (12) fixedly mounted on the upper end of the reaction furnace (11), characterized in that: Also includes: A filter screen (13), the peripheral side of the filter screen (13) being fixedly connected to the inner side wall of the lower end of the reaction tube (12); A rotating shaft (14), the upper end of the rotating shaft (14) is rotatably connected to the reaction tube (12) through a fixing plate (17), the lower end of the rotating shaft (14) is rotatably connected to the filter screen (13), the lower end of the rotating shaft (14) penetrates the filter screen (13), and the rotating shaft (14) is disposed on the upper end of the filter screen (13) and is provided with a thread; A fan (15), the fan (15) being fixedly connected to the lower end of the rotating shaft (14) passing through the filter screen (13); A material receiving plate (16), the material receiving plate (16) being fixedly arranged at the connection between the reaction tube (12) and the reaction furnace (11), and the upper end of the material receiving plate (16) being circumferentially provided with air holes; A dredging component, the dredging component is arranged at the upper end of the filter screen (13) and is used to dredge the filter screen (13); A cleaning component, which is arranged at the lower end of the filter screen (13) and is used to collect flying dust; The cleaning component includes: A connecting plate (21), the connecting plate (21) being fixedly arranged on the peripheral side of the rotating shaft (14), the upper end of the connecting plate (21) being rotatably connected to the lower end of the filter screen (13); A telescopic scraper (22), one end of the telescopic scraper (22) is fixedly arranged on the peripheral side of the connecting plate (21), and the other end is a free end; The reaction tube (12) is axially provided with a matching groove (23), and the upper end of the matching groove (23) is vertically provided with a moving groove (24). The dredging component comprises: a bellows (31), the bellows (31) being axially telescopically arranged in the matching groove (23), the end of the bellows (31) being fixedly connected to the bottom wall of the matching groove (23), and the head end of the bellows (31) being in contact with the free end of the telescopic scraper (22); A dredging plate (32), the dredging plate (32) being rotatably disposed on the rotating shaft (14) through a guide member (5), and a dredging needle being axially disposed at the lower end of the dredging plate (32); A support member (4), the support member (4) being arranged in the movable groove (24) and used for supporting the dredging plate (32); A connecting pipe (33), one end of which is connected to the corrugated pipe (31) and the other end of which is connected to the supporting member (4).

2. A furnace structure for coke strength detection according to claim 1, characterized in that: The guide member (5) comprises: A guide plate (51), wherein the guide plate (51) is coaxially arranged with the dredging plate (32), and the guide plate (51) is threadedly connected with the rotating shaft (14); A guide rod (52), wherein the guide rod (52) is arranged parallel to the rotating shaft (14), one end of the rotating shaft (14) is fixedly connected to the lower end of the connecting plate (21), and the other end is fixedly connected to the upper end of the filter screen (13).

3. The furnace structure for coke strength detection according to claim 1, characterized in that: The support member (4) comprises: A telescopic rod (41), the telescopic rod (41) is transversely fixed to the bottom wall of the movable groove (24), a first spring (44) is fixed in the rodless cavity of the telescopic rod (41), one end of the first spring (44) is fixedly connected to the bottom wall of the rodless cavity of the telescopic rod (41), and the other end is fixedly connected to one end of the telescopic end of the telescopic rod (41) placed in the rodless cavity; A matching plate (42), one end of which is fixedly arranged on the peripheral side of the dredging plate (32), and the lower end of the matching plate (42) contacts the telescopic end of the telescopic rod (41); A second spring (43), one end of the second spring (43) is fixedly arranged on the upper side wall of the movable groove (24), and the other end of the second spring (43) is fixedly arranged on the upper end of the matching plate (42).

4. A furnace structure for coke strength detection according to claim 3, characterized in that: A push rod (61) is provided at the lower end of the dredging plate (32), and the push rod (61) is fixedly connected to the lower end of the dredging plate (32), and the other end passes through the filter screen (13); the rotating shaft (14) is located at the lower end of the filter screen (13) and is vertically provided with a slide groove (62), and a third elastic member is fixedly provided in the slide groove (62), one end of the third elastic member is fixedly connected to the lower side of the slide groove (62), and the other end is fixedly connected to the lower end of the connecting plate (21); the matching groove (23) is located on one side of the support member (4) and is provided with a first guide inclined surface (65).

5. The furnace structure for coke strength detection according to claim 1, characterized in that: The reaction tube (12) is provided with a protrusion (64) at a position where the fan (15) is located, and a plurality of protrusions (64) are arranged at intervals along the circumference of the reaction tube (12).

6. The furnace structure for coke strength detection according to claim 3, characterized in that: Gas is arranged in the bellows (31).

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