Tool for detecting sealing performance of roasting furnace

Abstract

The invention provides a roasting furnace sealing performance detection tool, and relates to the technical field of prebaked anode processing equipment. The tool comprises a main shell, and the main shell comprises a smoke bin and a smoke outlet barrel. A movable shell is coaxially and rotationally arranged in the smoke bin, and a smoke outlet is formed in the movable shell. A fan is arranged at one end of the smoke bin, and a smoke generating part is arranged at the end, back to the fan, of the movable shell or the smoke bin. A handle component is arranged on the smoke bin and comprises a fixed handle and a movable handle, one end of the movable handle is connected with the movable shell through a pull rod, an elastic piece and a switch assembly are arranged between the other end of the movable handle and the fixed handle, and in the first working state, the two electrode plates are separated, and the smoke outlet and the smoke outlet barrel are staggered; and in the second working state, the two electrode plates are attached, and the smoke outlet is aligned with the smoke outlet cylinder. According to the roasting furnace sealing performance detection tool provided by the invention, the air tightness can be efficiently, conveniently and accurately detected.

Description

Technical Field

[0001] The present invention relates to the technical field of pre-baked anode processing equipment, and more specifically, to a sealing detection tool for a roasting furnace. Background Art

[0002] In the production process of pre-baked anodes, the last process is the roasting process. In this process, the formed pre-baked anode semi-finished products (i.e., green anodes) are placed in a roasting furnace and roasted at high temperatures. This process not only requires precise temperature control but also requires the furnace body to have good sealing performance to prevent the leakage of harmful gases and heat loss.

[0003] Due to the long-term high-temperature and chemical environment in the roasting furnace, the furnace wall materials may age and fatigue due to factors such as thermal expansion and contraction, corrosion, and oxidation, resulting in a decrease in material strength, cracks, and holes, inevitably causing air leakage, leading to energy waste, a decline in product quality, and an increase in safety hazards. Therefore, it is necessary to detect and handle air leakage points in a timely manner to reduce safety risks and energy waste.

[0004] However, due to the large size of the roasting furnace body, the existing detection methods mainly rely on physical observation of the surface, which is not only inefficient but also prone to omission. Summary of the Invention

[0005] In view of the above problems, a sealing detection tool for a roasting furnace provided by the present application can provide efficient, convenient, and accurate airtightness inspection.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0007] A sealing detection tool for a roasting furnace includes a main housing, the main housing includes a smoke chamber, and a smoke outlet tube communicating with the internal space of the smoke chamber is provided on the smoke chamber.

[0008] An activity housing is coaxially rotatably arranged in the smoke chamber, and a smoke outlet is provided on the activity housing.

[0009] A blower for blowing air into the activity housing is provided at one end of the smoke chamber.

[0010] A smoke generating component is provided at the end of the activity housing or the smoke chamber facing away from the blower.

[0011] The smoke generating component includes a sealing plate, and a resistance heating wire and a smoke sheet are provided on the sealing plate.

[0012] A handle component is provided on the smoke chamber.

[0013] The described handle component includes a fixed handle and a movable handle. The middle of the movable handle is rotationally connected to the fixed handle. One end of the movable handle is connected to the movable housing through a pull rod, and an elastic member and a switch assembly are provided between the other end of the movable handle and the fixed handle;

[0014] The described switch assembly includes two electrode plates, and the two electrode plates are respectively arranged on the fixed handle and the movable handle;

[0015] The handle component has two working states;

[0016] When the handle component is in the first working state, the two electrode plates are separated, the resistance heating wire and the blower are in a power-off and non-working state, and the smoke outlet on the movable housing is in a misaligned state with the smoke outlet pipe of the main housing;

[0017] When the handle component is in the second working state, the two electrode plates are in contact, the resistance heating wire and the blower are in a working state, and the smoke outlet on the movable housing is aligned with the smoke outlet pipe of the main housing.

[0018] Further, a first mounting cylinder is provided on the inner side surface of the sealing plate. A heating plate, a smoke sheet and a compression spring are sequentially arranged in the first mounting cylinder along the direction away from the sealing plate. The heating plate includes a chassis and a resistance heating wire. A sealing cover is provided at the opening end of the first mounting cylinder. One end of the compression spring abuts against the sealing cover, and the other end of the compression spring presses the smoke sheet against the resistance heating wire. Smoke escape holes are provided on the first mounting cylinder and / or the sealing cover.

[0019] Further, a heat insulation member made of refractory and heat-insulating material is provided between the first mounting cylinder and the heating plate. The heat insulation member includes a bottom plate located between the heating plate and the sealing plate, and a side plate is provided between the side surface of the heating plate and the first mounting cylinder.

[0020] Further, a plurality of flue gas escape grooves are provided on the inner side surface of the side plate of the heat insulation member.

[0021] Further, a second mounting cylinder is provided on the sealing plate. A fourth end plate is provided at one end of the second mounting cylinder facing the blower, and a detachable sealing cover is provided at the other end of the second mounting cylinder facing away from the blower. A heat insulation member, a heating plate, a smoke sheet and a compression spring are sequentially arranged in the second mounting cylinder along the direction close to the sealing cover. The heating plate includes a chassis and a resistance heating wire. One end of the compression spring abuts against the sealing cover, and the other end of the compression spring presses the smoke sheet against the resistance heating wire. Smoke escape holes are provided on the second mounting cylinder on the inner side of the sealing plate.

[0022] Further, the smoke chamber includes a first side enclosure plate in a circular cylindrical structure. A first end plate is provided at the rear end of the first side enclosure plate, and a first ventilation opening is provided on the first end plate. The movable housing includes a second side enclosure plate in a circular cylindrical structure. A second end plate is provided at the rear end of the second side enclosure plate, and a second ventilation opening is provided on the second end plate.

[0023] Further, when the handle component is in the first working state, the first ventilation opening and the second ventilation opening are arranged in a staggered manner; when the handle component is in the second working state, the first ventilation opening and the second ventilation opening are aligned one by one.

[0024] Further, a rotating shaft is provided on the first end plate, and the second end plate of the movable housing is rotationally connected to the rotating shaft through a bearing assembly.

[0025] Further, the sealing plate of the smoke generating component is arranged on the movable housing. The fixed handle is provided with a mounting hole for accommodating the movable handle. A first hinge post is provided on the movable handle. A second hinge post is provided at the end of the movable housing facing away from the blower. One end of the pull rod is provided with a first hinge hole that cooperates with the first hinge post, and the other end of the pull rod is provided with a second hinge hole that cooperates with the second hinge post.

[0026] Further, the movable housing includes a second side enclosure plate in a circular cylindrical structure. A third end plate is provided at the front end of the second side enclosure plate, and an avoidance mounting opening is provided on the third end plate. The sealing plate is rotationally connected to the third end plate, and a locking mechanism is provided between the sealing plate and the third end plate.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. A baking furnace airtightness detection tool provided by the present application can provide efficient, convenient and accurate airtightness inspection, so as to discover and remedy in time, ensure that the baking furnace operates in the best state, prevent uneven temperature inside the furnace caused by gas leakage and unstable stress generated during the shrinkage process, avoid premature damage of the baking furnace due to long-term poor operation state, extend the service life of the baking furnace, and improve the overall production efficiency. In addition, by reducing the defective rate caused by air leakage, the product quality can also be improved.

[0029] 2. A baking furnace airtightness detection tool provided by the embodiments of the present application adopts the method of igniting the smoke sheet with a resistance heating wire in a baking workshop where open flames are strictly prohibited, so as to completely eliminate the existence of all open flame sources, and can significantly improve the safety of the detection process.

[0030] 3. The sealing performance detection tool for a roasting furnace provided by an embodiment of the present application can observe the flow and direction of smoke at the detection points of the roasting furnace by cooperating with the negative pressure device of the roasting furnace, and can vividly and vividly judge whether there is air leakage at that place. Such an observation method is not only intuitive and easy to understand, but also can immediately reflect the sealing state of the roasting furnace, providing important information for timely detection and maintenance.

[0031] 4. The sealing performance detection tool for a roasting furnace provided by an embodiment of the present application makes the detection work more convenient and efficient, and can also effectively reduce the labor input.

[0032] 5. The sealing performance detection tool for a roasting furnace provided by an embodiment of the present application is in an open state when the handle part is held tightly and can generate smoke, and is in a closed state when the handle part is released. This not only ensures safety, but also can reduce costs and is beneficial to energy conservation and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic perspective view of a sealing performance detection tool for a roasting furnace provided by an embodiment of the present application;

[0034] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0035] Figure 3 is a side view of a sealing performance detection tool for a roasting furnace provided by an embodiment of the present application;

[0036] Figure 4 is Figure 3 a sectional view taken along line A-A in

[0037] Figure 5 is a front view of a sealing performance detection tool for a roasting furnace provided by an embodiment of the present application;

[0038] Figure 6 is Figure 5 a sectional view taken along line B-B in

[0039] Figure 7 is Figure 6 an enlarged schematic view of part B in

[0040] Figure 8 is an exploded view of a sealing performance detection tool for a roasting furnace provided by an embodiment of the present application;

[0041] Figure 9 is a schematic perspective view of a sealing performance detection tool for a roasting furnace provided by an embodiment of the present application when it is in an open state;

[0042] Figure 10Cross-section of a baking furnace sealing detection tool provided by an embodiment of the present application when in an open state Figure 1 ;

[0043] Figure 11 is Figure 10 An enlarged structural schematic diagram of part C in

[0044] Figure 12 Cross-section of a baking furnace sealing detection tool provided by an embodiment of the present application when in an open state Figure 2 ;

[0045] Figure 13 A three-dimensional structural schematic diagram of the main housing

[0046] Figure 14 A three-dimensional structural schematic diagram of the movable housing

[0047] Figure 15 A three-dimensional structural schematic diagram of the smoke generating component

[0048] Figure 16 An exploded view of the smoke generating component

[0049] Figure 17 A structural schematic diagram of the heating plate

[0050] Figure 18 A structural schematic diagram of the smoke generating component of a baking furnace sealing detection tool provided by another embodiment of the present application

[0051] In the figure: 1, main housing; 11, smoke bin; 111, first side enclosure; 112, first end plate; 1121, first ventilation opening; 113, rotating shaft; 12, smoke outlet pipe

[0052] 2, movable housing; 21, second side enclosure; 211, smoke outlet; 22, second end plate; 221, second ventilation opening; 222, avoidance hole; 23, connecting cylinder; 24, third end plate; 241, avoidance installation opening; 242, locking screw; 243, second hinge post

[0053] 31, bearing; 32, limit nut

[0054] 4, fan

[0055] 5. Smoke generating component; 51. Closing plate; 511. Locking notch; 512. First mounting tube; 513. Second mounting tube; 514. Fourth end plate; 52. Heating plate; 521. Bottom plate; 5211. Inner baffle plate; 5212. Outer baffle plate; 5213. Guide boss; 522. Resistance heating wire; 53. Smoke sheet; 54. Compression spring; 55. Closing cover; 551. Slot; 56. Smoke escape hole; 57. Heat insulation; 571. Bottom plate; 572. Side plate; 5721. Smoke escape slot;

[0056] 6. Hinge;

[0057] 7. Handle component; 71. Fixed handle; 711. Grip portion; 712. Mounting portion; 7121. Mounting hole; 713. First positioning column; 714. Third positioning column; 72. Movable handle; 721. First hinge column; 722. Second positioning column; 723. Fourth positioning column; 73. Hinge shaft; 74. Pull rod; 75. First spring; 761. Electrode plate; 762. Second spring; 763. Third spring;

[0058] 8. Battery. DETAILED DESCRIPTION

[0059] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described in detail below in conjunction with the drawings in the embodiments of the present application, and the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by those skilled in the art without creative work on the basis of the embodiments of the present application shall belong to the protection scope of the present application.

[0060] For the convenience of description, the coordinate system is defined as Figure 1 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0061] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a baking furnace sealing detection tool includes a main shell 1, and the main shell 1 includes a smoke bin 11 with a cylindrical structure. A smoke outlet 12 connected to the internal space of the smoke bin 11 is arranged on the cylindrical side wall of the smoke bin 11.

[0062] As a specific implementation, the cross section of the smoke outlet pipe 12 in this embodiment is a square structure.

[0063] A cylindrical movable housing 2 is arranged in the described smoke chamber 11. The movable housing 2 is coaxially arranged with the smoke chamber 11 and is rotatably connected to the smoke chamber 11, that is, the movable housing 2 can rotate coaxially relative to the smoke chamber 11. The outer diameter of the movable housing 2 is equal to or slightly smaller than the inner diameter of the smoke chamber 11, and a smoke outlet 211 is arranged on the cylindrical side wall of the movable housing 2.

[0064] As a specific implementation manner, as Figure 6 , Figure 13 and Figure 14 shown, in this embodiment, the described smoke chamber 11 includes a first side enclosure 111 in a circular cylindrical structure. A first end plate 112 is arranged at the rear end of the first side enclosure 111, and a first ventilation opening 1121 is arranged on the first end plate 112. The movable housing 2 includes a second side enclosure 21 in a circular cylindrical structure. A second end plate 22 is arranged at the rear end of the second side enclosure 21, and a second ventilation opening 221 is arranged on the second end plate 22. A rotating shaft 113 is arranged inside the first side enclosure 111 on the first end plate 112, and the second end plate 22 is rotatably connected to the rotating shaft 113 through a bearing 31 assembly.

[0065] As a specific implementation manner, in this embodiment, the front end of the rotating shaft 113 passes through the second end plate 22 and extends to the front side of the second end plate 22. An avoidance hole 222 allowing the rotating shaft 113 to pass through is arranged on the second end plate 22. A connecting cylinder 23 coaxial with the avoidance hole 222 is arranged on the front side surface of the second end plate 22, and the inner diameter of the connecting cylinder 23 is larger than the diameter of the avoidance hole 222. The bearing 31 assembly includes a bearing 31. The bearing 31 is located inside the connecting cylinder 23. The rear side surface of the outer ring of the bearing 31 abuts against the second end plate 22. A limit nut 32 is arranged on the rotating shaft 113 on the front side of the bearing 31, and the limit nut 32 presses against the front side surface of the inner ring of the bearing 31. Further, a hole retaining snap ring (not shown in the figure) for restricting the outer ring of the bearing 31 is arranged on the inner side surface of the connecting cylinder 23 on the front side of the bearing 31.

[0066] One end of the smoke chamber 11 is provided with a blower 4 coaxially arranged with the smoke chamber 11, and the blower 4 is used to blow air into the movable housing 2.

[0067] As a specific implementation manner, according to Figure 1In the coordinate system shown, in this embodiment, the fan 4 is located at the rear side of the smoke bin 11, and the fan 4 is fixedly connected to the first end plate 112 in a detachable manner. Exemplarily, the fan 4 is fixedly connected to the first end plate 112 by screws. The fan 4 mainly blows air into the movable housing 2 without affecting the outflow of smoke from the smoke outlet pipe 12. Therefore, a small-power micro fan 4 is preferably selected for the fan 4. Exemplarily, the power of the fan 4 is 1W, and the rotation speed is about 100 r / min.

[0068] A smoke generating component 5 is provided at one end of the movable housing 2 or the smoke bin 11 facing away from the fan 4. The smoke generating component 5 includes a sealing plate 51, and the sealing plate 51 can block the front-end opening of the movable housing 2. A resistance heating wire 522 and a smoke sheet 53 are provided on the sealing plate 51, and the smoke sheet 53 is in contact with the resistance heating wire 522. When the resistance heating wire 522 is powered on, it can ignite the smoke sheet 53 to generate smoke. Here, the so-called "ignite" should not be understood literally as combustion with open flames. Since the smoke sheet 53 is mainly used to generate a smoke effect, no open flames will be generated even in the ignited state.

[0069] As a specific implementation manner, in this embodiment, the sealing plate 51 of the smoke generating component 5 is fixedly arranged on the movable housing 2 in a detachable manner.

[0070] As a specific implementation manner, as Figure 14 shown, in this embodiment, the front end of the second side panel 21 is fixedly provided with a third end plate 24 by welding, and an avoidance mounting opening 241 is provided on the third end plate 24. The sealing plate 51 is located outside the third end plate 24 (the side where the second end plate 22 and the third end plate 24 face each other is the inner side), and is rotatably connected to the third end plate 24 by a hinge 6. A locking mechanism is provided between the sealing plate 51 and the third end plate 24.

[0071] As a specific implementation manner, as Figure 6 and Figure 15 shown, in this embodiment, the locking mechanism includes locking screws 242 provided on the third end plate 24. Exemplarily, the locking screws 242 are butterfly screws. Locking notches 511 for accommodating the locking screws 242 are provided on the sealing plate 51. Exemplarily, two locking screws 242 are provided on the third end plate 24, and correspondingly, two locking notches 511 are provided on the sealing plate 51.

[0072] As Figure 6 、 Figure 15 and Figure 16As shown, a first mounting cylinder 512 is provided on the inner side surface of the sealing plate 51 (the side where the second end plate 22 and the third end plate 24 face each other is defined as the inner side). Exemplarily, the first mounting cylinder 512 is coaxially arranged with the movable housing 2. Inside the first mounting cylinder 512, a heating plate 52, a smoke sheet 53 and a compression spring 54 are sequentially arranged in the axial direction away from the sealing plate 51. A detachable cover 55 is provided at the open end of the first mounting cylinder 512. One end of the compression spring 54 abuts against the cover 55, and the other end of the compression spring 54 presses the smoke sheet 53 so that the smoke sheet 53 contacts the resistance heating wire 522 on the heating plate 52. Exemplarily, the cover 55 is fixedly connected to the first mounting cylinder 512 by means of a threaded connection. Smoke escape holes 56 are provided on the first mounting cylinder 512 and / or the cover 55.

[0073] As a specific embodiment, in this embodiment, the specifications of the resistance heating wire are 12V, 10A, and 120W.

[0074] As a specific embodiment, in this embodiment, the axial dimension of the first mounting cylinder 512 is smaller than the axial dimension of the cover 55, and the smoke escape holes 56 are provided on the side wall of the cover 55.

[0075] Furthermore, the compression spring 54 is fixedly connected to the cover 55 by means of welding.

[0076] As a specific embodiment, as Figure 16 and Figure 17As shown, in this embodiment, the heating plate 52 includes a chassis 521 made of refractory bricks. A circular inner baffle 5211 and an outer baffle 5212 are coaxially arranged on the chassis 521. A plurality of arc-shaped guiding bosses 5213 are arranged between the inner baffle 5211 and the outer baffle 5212, and the guiding bosses 5213 are coaxially arranged with the inner baffle 5211 and the outer baffle 5212. Exemplarily, two layers of guiding bosses 5213 are arranged between the inner baffle 5211 and the outer baffle 5212, and the two layers of guiding bosses 5213 divide the area between the inner baffle 5211 and the outer baffle 5212 into a first annular area, a second annular area, and a third annular area from outside to inside in sequence. The resistance heating wire 522 first enters the second annular area from the first annular area by bypassing the opening of the outer layer guiding boss 5213, then enters the third annular area by bypassing the opening of the inner layer guiding boss 5213, then bypasses the inner baffle 5211 and then enters the second annular area again by bypassing the opening of the inner layer guiding boss 5213, and then enters the first annular area by bypassing the opening of the outer layer guiding boss 5213. The diameter of the resistance heating wire 522 is greater than the heights of the inner baffle 5211, the outer baffle 5212, and the guiding bosses 5213, so that the smoke sheet 53 can be in direct contact with the resistance heating wire 522.

[0077] Further, a heat insulation member 57 made of refractory heat insulation material is arranged between the first mounting cylinder 512 and the heating plate 52. As a specific implementation manner, in this embodiment, the heat insulation member 57 is made of asbestos board.

[0078] As Figure 16 shown, the heat insulation member 57 includes a bottom plate 571 located between the bottom surface of the heating plate 52 and the sealing plate 51, and a side plate 572 in a cylindrical tubular structure is arranged between the side surface of the heating plate 52 and the first mounting cylinder 512. Preferably, the bottom plate 571 and the side plate 572 are of an integral structure, so as to reduce heat escape.

[0079] By arranging the heat insulation member 57, the temperature of the heating plate 52 can be prevented from being transmitted to the external sealing plate 51, thereby reducing the temperature of the outer side surface of the whole tool and avoiding the danger of scalding the operator due to accidental touch.

[0080] Further, as Figure 6 、 Figure 7 and Figure 16As shown, a plurality of flue gas escape grooves 5721 are evenly distributed along the circumferential direction on the inner side surface of the side plate 572 of the heat insulation member 57. During operation, smoke is generated on the surface of the smoke sheet 53 in contact with the resistance heating wire 522. The generated smoke can escape through the gap between the smoke sheet 53 and the chassis 521 of the heating plate 52, then escape through the flue gas escape grooves 5721, and finally enter the movable housing 2 through the flue gas escape holes.

[0081] As Figure 1 , Figure 2 , Figure 4 and Figure 5 shown, a handle member 7 is provided on the first side enclosure 111 of the smoke chamber 11.

[0082] The handle member 7 includes a fixed handle 71 and a movable handle 72. The fixed handle 71 is fixedly connected to the second side enclosure 21 of the smoke chamber 11. The middle of the movable handle 72 is rotatably connected to the fixed handle 71 through a hinge shaft 73. One end of the movable handle 72 is connected to the movable housing 2 through a pull rod 74. One end of the pull rod 74 is hinged to the movable handle 72, and the other end of the pull rod 74 is hinged to the movable housing 2. An elastic member and a switch assembly are provided between the other end of the movable handle 72 and the fixed handle 71. The elastic member is used to prevent the other end of the movable handle 72 from approaching the fixed handle 71. The switch assembly includes two electrode plates 761, and the two electrode plates 761 are respectively arranged on the fixed handle 71 and the movable handle 72. The fixed handle 71 and the movable handle 72 are both made of insulating materials.

[0083] As Figure 4 , Figure 10 and Figure 11 shown, the handle member 7 has two working states:

[0084] As Figure 4 shown, when the handle member 7 is in the first working state (i.e., the closed state), the two electrode plates 761 are separated, the circuit is disconnected, the heating plate 52 and the fan 4 are both powered off and not working, the smoke outlet 211 on the movable housing 2 is in a misaligned state with the smoke outlet pipe 12 of the main housing 1, and the smoke outlet pipe 12 cannot communicate with the internal space of the movable housing 2 through the smoke outlet 211. At this time, not only no smoke is generated, but also the internal space of the movable housing 2 is not communicated with the smoke outlet pipe 12.

[0085] As Figure 10 , Figure 11 and Figure 12As shown, when the handle member 7 is in the second working state (i.e., the open state), the two electrode plates 761 are in contact, the circuit is turned on, and both the heating plate 52 and the blower 4 are in the working state. The smoke outlet 211 on the movable housing 2 is aligned with the smoke outlet pipe 12 of the main housing 1. At this time, the smoke generated by the smoke sheet 53 will sequentially pass through the smoke escape groove and the smoke escape hole 56 and enter the movable housing 2, and then enter the smoke outlet pipe 12 through the smoke outlet 211, and finally escape from the smoke outlet pipe 12.

[0086] As a specific implementation manner, as Figure 4 shown, in this embodiment, the fixed handle 71 includes a holding portion 711. One end of the holding rod close to the smoke bin 11 is provided with a mounting portion 712 protruding toward the smoke bin 11, and the mounting portion 712 is fixedly connected to the second side enclosure 21 of the smoke bin 11. The mounting portion 712 is provided with a mounting hole 7121 penetrating through the mounting portion 712 in the left-right direction. The movable handle 72 is inserted into the mounting hole 7121, and the middle portion of the movable handle 72 is rotatably connected to the mounting portion 712 through a hinge shaft 73. The right end of the movable handle 72 is provided with a first hinge column 721, the right end of the third end plate 24 of the movable housing 2 is provided with a second hinge column 243, the upper end of the pull rod 74 is provided with a first hinge hole matching with the first hinge column 721, and the lower end of the pull rod 74 is provided with a second hinge hole matching with the second hinge column 243.

[0087] As a specific implementation manner, in this embodiment, the elastic member is a first spring 75. A first positioning column 713 is provided on the upper side surface of the mounting hole 7121, and a second positioning column 722 is provided on the movable handle 72. The first positioning column 713 and the second positioning column 722 are respectively inserted into the first spring 75 from both ends.

[0088] Furthermore, both ends of the first spring 75 are fixedly connected to the fixed handle 71 and the movable handle 72 respectively.

[0089] Further, the switch assembly is located on a side of the elastic member close to the hinge shaft 73. A third positioning post 714 is provided on the fixed handle 71 (exemplarily, on the upper side of the mounting hole 7121). A second spring 762 is coaxially sleeved on the third positioning post 714. One end of the second spring 762 is fixedly connected to the fixed handle 71, and the other end of the second spring 762 is fixedly connected to the electrode plate 761. A fourth positioning post 723 is provided on the movable handle 72. A third spring 763 is coaxially sleeved on the fourth positioning post 723. One end of the third spring 763 is fixedly connected to the movable handle 72, and the other end of the third spring 763 is fixedly connected to the electrode plate 761.

[0090] Further, as Figure 8 and Figure 9 shown, when the handle member 7 is in the first working state, the first vent 1121 and the second vent 221 are arranged in a staggered manner; when the handle member 7 is in the second working state, the first vent 1121 and the second vent 221 are in a state of being aligned one by one.

[0091] The reason for such a design is that, on the one hand, when the handle member 7 is in the first working state, even if there is residual smoke in the smoke chamber 11, the smoke will not escape but will be enclosed in the smoke chamber 11. In this way, when it is opened next time, the smoke can escape from the smoke outlet tube 12 in time without waiting for a period of time, which is beneficial to improving work efficiency. On the other hand, when the handle member 7 is in the first working state, the smoke chamber 11 can form a sealed space. Due to the absence of oxygen, the smoke sheet 53 is extinguished, achieving the purpose of controlling the start and stop of the smoke.

[0092] The main components of the smoke sheet 53 are sawdust, sucrose and adhesives, and the smoke generated by it is non-toxic and harmless to the human body.

[0093] As a specific implementation manner, as Figure 13 and Figure 14 shown, in this embodiment, both the first vent 1121 and the second vent 221 are in a fan-shaped structure and are evenly arranged along the circumferential direction.

[0094] Further, a storage battery 8 is provided on the outer side surface of the second side wall 21 of the smoke chamber 11, and the storage battery 8 is used to provide electrical energy for the operation of the fan 4 and the heating plate.

[0095] A sealing detection tool provided by this application is used to detect whether there is air leakage at positions such as the joints of the roasting furnace body, the furnace door seal, the exhaust pipe, and the gas valve. Before the operator uses it, first turn on the negative pressure device of the roasting furnace and install the smoke sheet 53. Then pick up the tool, place the thumb on the fixed handle 71, and hold the movable handle 72 with the remaining four fingers. In the natural non-force state, it is in the power-off mode, and no smoke is generated at this time. When checking for air leakage points, align the smoke outlet pipe 12 with the detection point, tightly hold the movable handle 72, apply a certain pressure, which will cause the first spring 75 to undergo elastic deformation, and then the two electrode plates 761 will fit together. At this time, the pull rod 74 will drive the movable housing 2 to rotate a certain angle, so that the smoke outlet 211 is communicated with the smoke outlet pipe 12, and the first ventilation port 1121 is aligned and communicated with the second ventilation port 221 one by one. At the same time, the circuit is turned on, and the storage battery 8 supplies power to the blower 4 and the heating plate 52. Air enters the smoke chamber 11 through the blower 4, and the resistance heating wire 522 of the heating plate 52 is heated to the ignition temperature of the smoke sheet 53, and then the smoke sheet 53 can be ignited to generate smoke. The smoke will enter the smoke outlet pipe 12 through the smoke outlet 211 and then be discharged through the smoke outlet pipe 12. At this time, if the smoke quickly moves towards the detection point and is inhaled, it indicates that there is an air leakage problem at this detection point. If the smoke does not flow or moves away from the detection point and its surroundings, it indicates that the detection point is airtight and has good sealing performance. When detection is not required, release the movable handle 72, the two electrode plates 761 separate, the circuit is disconnected, at this time, the blower 4 stops rotating, the heating plate 52 stops heating, the pull rod 74 drives the movable housing 2 to reset, and the generation of smoke in the smoke chamber 11 stops due to the lack of oxygen.

[0096] Embodiment 2

[0097] The difference between this embodiment and the embodiment lies in the specific implementation manner of realizing the rotational connection between the movable housing 2 and the smoke chamber 11.

[0098] In this embodiment, both the rear ends of the smoke chamber 11 and the movable housing 2 are of an open structure. The outer cylindrical surface of the movable housing 2 is in the shape of a stepped shaft, and sequentially includes a first shaft section and a second shaft section along the front-to-back direction, and the diameter of the first shaft section is larger than the diameter of the second shaft section. A oil-free bearing 31 is coaxially sleeved on the second shaft section of the movable housing 2. The oil-free bearing 31 is fixedly connected to the movable housing 2 by an interference fit, and the outer diameter of the oil-free bearing 31 is slightly larger than the diameter of the first shaft section. Exemplarily, the outer diameter of the oil-free bearing 31 is 0.2 - 0.5 mm larger than the diameter of the first shaft section. The outer side surface of the oil-free bearing 31 is in contact with the inner cylindrical surface of the smoke chamber 11 and forms a sliding guide, so that the movable housing 2 can rotate coaxially relative to the smoke chamber 11. The smoke outlet 211 is arranged on the first shaft section.

[0099] The remaining structures are the same as those in Embodiment 1.

[0100] Embodiment III

[0101] The sealing plate 51 of the smoke generating component 5 is fixedly arranged on the front end face of the smoke chamber 11 in a detachable manner. As a specific implementation manner, in this embodiment, the sealing plate 51 has a circular structure, and the edge of the sealing plate 51 is fixedly connected to the front end face of the first side enclosure plate 111 of the smoke chamber 11 by screws.

[0102] A connecting plate extending radially outward is arranged on the second side enclosure plate 21 of the movable housing 2, and an avoidance groove for avoiding the connecting plate is arranged on the first side enclosure plate 111 of the smoke chamber 11. The second hinge column 243 is arranged on the connecting plate.

[0103] The remaining structures are the same as those in Embodiment I.

[0104] Embodiment IV

[0105] As Figure 18 shown, the sealing plate 51 has a circular structure and is fixedly connected to the front end face of the second side enclosure plate 21 of the movable housing 2 by welding. A connection hole coaxial with the movable housing 2 is arranged on the sealing plate 51, a second installation cylinder 513 is arranged in the connection hole, and the second installation cylinder 513 is fixedly connected to the sealing plate 51 by welding. A fourth end plate 514 is arranged at one end of the second installation cylinder 513 facing the blower 4, and the fourth end plate 514 is fixedly connected to the second installation cylinder 513 by welding; a detachable cover 55 is arranged at one end of the second installation cylinder 513 facing away from the blower 4. An insulating member 57, a heating plate 52, a smoke sheet 53 and a compression spring 54 are sequentially arranged in the second installation cylinder 513 along the axial direction close to the cover 55. Smoke escape holes 56 are evenly arranged on the side wall of the second installation cylinder 513 between the sealing plate 51 and the insulating member 57 in the circumferential direction.

[0106] As a specific implementation manner, in this embodiment, the cover 55 is a circular plate, an external thread is arranged on the outer cylindrical surface of the circular plate, and an internal thread matching the external thread of the circular plate is arranged on the inner side surface of the opening end of the second installation cylinder 513.

[0107] Further, a slot 551 matching a tool wrench is arranged on the outer side surface of the cover 55. As a specific implementation manner, in this embodiment, the slot 551 has a regular hexagon structure and is used to cooperate with a hexagon wrench.

[0108] The remaining structures are the same as those in Embodiment I.

[0109] Embodiment V

[0110] The cover 55 described is a circular plate. External threads are provided on the outer cylindrical surface of the circular plate, and internal threads matching the external threads of the circular plate are provided on the inner side surface of the open end of the first mounting cylinder 512. The smoke escape holes 56 are uniformly arranged on the side wall of the first mounting cylinder 512 along the circumferential direction and are located on the side of the heat insulation member 57 facing the cover 55. The remaining structure is the same as that of the first embodiment.

[0111] Embodiment Six

[0112] Smoke escape holes 56 are also provided on the cover 55 described, and the remaining structure is the same as that of the fifth embodiment.

[0113] Other embodiments obtained by those skilled in the art through means such as combination, splitting, and recombination of the embodiments provided in this application are all within the protection scope of this application.

[0114] The above specific implementation manners have described in detail the purpose, technical solutions, and beneficial effects of the embodiments of this application. The above are only the specific implementation manners of the embodiments of this application and are not used to limit the protection scope of the embodiments of this application. That is, any modifications, equivalent replacements, improvements, etc. made on the basis of the embodiments of this application shall be included within the protection scope of the embodiments of this application.

Claims

1. A sealing detection tool for a roasting furnace, characterized in that: Comprising a main housing (1), the main housing (1) includes a smoke chamber (11), and an outlet chimney (12) communicating with the internal space of the smoke chamber (11) is provided on the smoke chamber (11); An activity housing (2) is coaxially rotatably arranged in the smoke chamber (11), and a smoke outlet (211) is provided on the activity housing (2); One end of the smoke chamber (11) is provided with a blower (4) for blowing air into the activity housing (2); A smoke generating component (5) is provided at one end of the activity housing (2) or the smoke chamber (11) facing away from the blower (4); The smoke generating component (5) includes a sealing plate (51), and a resistance heating wire (522) and a smoke sheet (53) are provided on the sealing plate (51); A handle component (7) is provided on the smoke chamber (11); The handle component (7) includes a fixed handle (71) and a movable handle (72). The middle of the movable handle (72) is rotatably connected to the fixed handle (71). One end of the movable handle (72) is connected to the activity housing (2) through a pull rod (74). An elastic member and a switch assembly are provided between the other end of the movable handle (72) and the fixed handle (71); The switch assembly includes two electrode plates (761), and the two electrode plates (761) are respectively provided on the fixed handle (71) and the movable handle (72); The handle component (7) has two working states; When the handle component (7) is in the first working state, the two electrode plates (761) are separated, the resistance heating wire (522) and the blower (4) are in a power-off and non-working state, and the smoke outlet (211) on the activity housing (2) is in a misaligned state with the outlet chimney (12) of the main housing (1); When the handle component (7) is in the second working state, the two electrode plates (761) are in contact, the resistance heating wire (522) and the blower (4) are in a working state, and the smoke outlet (211) on the activity housing (2) is aligned with the outlet chimney (12) of the main housing (1).

2. A sealing detection tool for a roasting furnace according to claim 1, characterized in that: A first mounting cylinder (512) is provided on the inner side surface of the sealing plate (51). A heating plate (52), a smoke sheet (53), and a compression spring (54) are sequentially arranged in the first mounting cylinder (512) in a direction away from the sealing plate (51). The heating plate (52) includes a chassis (521) and a resistance heating wire (522). A sealing cover (55) is provided at the open end of the first mounting cylinder (512). One end of the compression spring (54) abuts against the sealing cover (55), and the other end of the compression spring (54) presses the smoke sheet (53) against the resistance heating wire (522). Smoke escape holes (56) are provided on the first mounting cylinder (512) and / or the sealing cover (55).

3. The sealing detection tool for a roasting furnace according to claim 2, characterized in that: An insulating member (57) made of refractory and heat-insulating material is provided between the first mounting cylinder (512) and the heating plate (52). The insulating member (57) includes a bottom plate (571) located between the heating plate (52) and the sealing plate (51), and a side plate (572) is provided between the side surface of the heating plate (52) and the first mounting cylinder (512).

4. A baking furnace sealing detection tool according to claim 3, characterized in that: A plurality of flue gas escape grooves (5721) are provided on the inner side surface of the side plate (572) of the insulating member (57).

5. A sealing detection tool for a roasting furnace according to claim 1, characterized in that: A second mounting cylinder (513) is provided on the sealing plate (51). A fourth end plate (514) is provided at one end of the second mounting cylinder (513) facing the blower (4), and a detachable cover (55) is provided at the other end of the second mounting cylinder (513) facing away from the blower (4). An insulating member (57), a heating plate (52), a smoke sheet (53), and a compression spring (54) are sequentially arranged in the second mounting cylinder (513) along the direction close to the cover (55). The heating plate (52) includes a chassis (521) and a resistance heating wire (522). One end of the compression spring (54) abuts against the cover (55), and the other end of the compression spring (54) presses the smoke sheet (53) against the resistance heating wire (522). A smoke escape hole (56) is provided on the second mounting cylinder (513) inside the sealing plate (51).

6. The sealing detection tool for a roasting furnace according to claim 1, characterized in that: The smoke chamber (11) includes a first side enclosure (111) in a circular cylindrical structure. A first end plate (112) is provided at the rear end of the first side enclosure (111), and a first ventilation opening (1121) is provided on the first end plate (112). The movable housing (2) includes a second side enclosure (21) in a circular cylindrical structure. A second end plate (22) is provided at the rear end of the second side enclosure (21), and a second ventilation opening (221) is provided on the second end plate (22).

7. A sealing detection tool for a roasting furnace according to claim 6, characterized in that: When the handle member (7) is in the first working state, the first ventilation opening (1121) and the second ventilation opening (221) are arranged in a staggered manner; when the handle member (7) is in the second working state, the first ventilation opening (1121) and the second ventilation opening (221) are aligned one by one.

8. A sealing detection tool for a roasting furnace according to claim 6, characterized in that: A rotating shaft (113) is provided on the first end plate (112), and the second end plate (22) of the movable housing (2) is rotatably connected to the rotating shaft (113) through a bearing (31) assembly.

9. A sealing detection tool for a roasting furnace according to claim 1, characterized in that: The closing plate (51) of the smoke generating component (5) is arranged on the movable housing (2). The fixed handle (71) is provided with a mounting hole (7121) for accommodating the movable handle (72). The movable handle (72) is provided with a first hinge post (721). A second hinge post (243) is arranged at one end of the movable housing (2) facing away from the blower (4). One end of the pull rod (74) is provided with a first hinge hole matching with the first hinge post (721), and the other end of the pull rod (74) is provided with a second hinge hole matching with the second hinge post (243).

10. A sealing detection tool for a roasting furnace according to claim 9, characterized in that: The movable housing (2) includes a second side enclosure plate (21) in a circular cylindrical structure. A third end plate (24) is arranged at the front end of the second side enclosure plate (21). An avoidance mounting opening (241) is arranged on the third end plate (24). The closing plate (51) is rotatably connected to the third end plate (24), and a locking mechanism is arranged between the closing plate (51) and the third end plate (24).

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