Sample combustion test equipment

Abstract

The utility model discloses sample combustion test equipment, which comprises a combustion chamber, the combustion chamber comprises a furnace body and a furnace cover, an accommodating cavity is formed between the furnace body and the furnace cover, a positioning point is arranged in the accommodating cavity, the positioning point is used for placing a crucible and a to-be-tested sample, and an igniter is arranged on the combustion chamber. The igniter is used for heating and igniting the to-be-tested sample at the positioning point; the gas supply mechanism is communicated with the accommodating cavity and is used for inputting oxygen into the accommodating cavity; the combustion detection device is used for detecting the combustion characteristics of the sample to be tested; the opening and closing mechanism is used for opening and closing the furnace cover, so that the combustion chamber has an opening state and a sealing state; and the sample transfer mechanism is used for transferring the sample to be tested when the combustion chamber is in the open state. Compared with the prior art, the sample combustion test equipment provided by the utility model has the advantages that the manual operation intensity can be reduced, and the influence of a high-temperature and high-pressure environment in the combustion furnace on the manual safety is avoided.

Description

Technical Field

[0001] This application relates to the field of elemental content analysis technology in combustible substances, and more specifically, to a sample combustion testing system. Background Technology

[0002] Combustible materials such as coal, ore, biomass, and pharmaceuticals require analysis of their constituent elements, calorific value, and ash content. For example, with coal, before combustion in the power plant, it's necessary to quickly detect its calorific value, ash content, carbon, hydrogen, sulfur, and other components to ensure optimal coal blending before combustion. This guarantees the maximum combustion efficiency of different coal blends, controlling costs, increasing power generation output, and ensuring that exhaust emissions, combustion ash, and coking meet regulatory requirements.

[0003] In the coal analysis industry, the use of automated testing equipment to test the ash and volatile matter content in coal requires high-temperature equipment to burn the ash at (815±10)℃ and to burn the volatile matter at (900±10)℃.

[0004] At the start of the experiment, the crucible is first clamped onto the crucible rack, and then the crucible rack is transferred into the combustion furnace. After high-temperature burning, the crucible rack needs to be removed from the combustion furnace. In the existing technology, the opening and closing of the combustion furnace, sample ignition, and crucible transfer are all done manually. Manual operation is labor-intensive and prone to errors, and the high-temperature environment inside the combustion furnace can easily pose a safety hazard to workers.

[0005] Therefore, there is an urgent need for a sample combustion testing device that can reduce the intensity of manual operation and avoid the impact of the high-temperature environment inside the combustion furnace on human safety. Utility Model Content

[0006] To address the aforementioned technical problems, this application provides a sample combustion testing device that reduces the intensity of manual operation and avoids the impact of the high-temperature environment inside the combustion furnace on human safety.

[0007] The technical solution provided in this application is as follows:

[0008] A sample combustion testing device, comprising:

[0009] The combustion chamber includes a furnace body and a furnace cover, with a cavity formed between the furnace body and the furnace cover. A positioning point is provided in the cavity for placing a crucible and a sample to be tested. An igniter is provided on the combustion chamber for heating and igniting the sample to be tested located at the positioning point.

[0010] A gas supply mechanism connected to the accommodating cavity for supplying oxygen into the accommodating cavity;

[0011] A combustion detection device for detecting the combustion characteristics of the sample to be tested;

[0012] An opening and closing mechanism is used to open and close the furnace cover so that the combustion chamber has an open state and a sealed state;

[0013] A sample transfer mechanism is used to transfer the sample to be tested when the combustion chamber is in the open state.

[0014] Preferably, the opening and closing mechanism includes:

[0015] A connecting component is provided between the inner circumferential side of the opening of the furnace body and the outer circumferential side of the furnace cover;

[0016] A drive assembly is used to drive the furnace cover and the furnace body to rotate relative to each other, so that the furnace cover and the furnace body have a locked state and an unlocked state;

[0017] A lid opening assembly configured to separate the furnace lid from the furnace body when the furnace lid is in an unlocked state.

[0018] Preferably, the opening and closing mechanism further includes:

[0019] A positioning plate is disposed inside the opening and fixedly connected to the furnace body. The positioning plate is used to abut against the inner side of the furnace cover for positioning.

[0020] A sealing element is installed between the positioning plate and the furnace cover.

[0021] Preferably, the connection component includes:

[0022] An internal thread is provided on the inner circumferential side of the opening;

[0023] The furnace cover is provided with an external thread on its outer periphery, and the furnace cover and the furnace body are fixedly connected by the thread.

[0024] Preferably, the connection component includes:

[0025] A first boss is disposed above the positioning plate and fixedly connected to the furnace body, and a first groove is formed between adjacent first bosses;

[0026] A second groove is provided at intervals on the outer periphery of the furnace cover and is used in conjunction with the first boss. A second boss is formed between adjacent second grooves and the second boss is used in conjunction with the first groove.

[0027] When the furnace body and the furnace cover are locked, the second protrusion is positioned between the first protrusion and the positioning plate; when the furnace body and the furnace cover are unlocked, the second protrusion is opposite to the first groove, and the first protrusion is opposite to the second groove.

[0028] Preferably, the connection component includes:

[0029] A locking groove is provided on the outer periphery of the opening, and a plurality of the locking grooves are spaced apart around the outer periphery of the opening;

[0030] A sliding groove is provided on the furnace cover;

[0031] A locking rod, the first end of which is slidably connected to the sliding groove, and the second end of which is used to insert into the locking groove. When the first end of the locking rod moves to the first side of the sliding groove, the second end of the locking rod separates from the locking groove. When the first end of the locking rod moves to the second side of the sliding groove, the second end of the locking rod is inserted into the locking groove.

[0032] The furnace cover rotates relative to the furnace body so that the locking rod slides from the first side of the locking groove to the second side of the locking groove.

[0033] Preferably, the opening assembly is used to move the furnace cover along the axial direction of the furnace body, so as to separate the furnace cover from the furnace body.

[0034] Preferably, the lid opening assembly includes:

[0035] A furnace cover support plate is provided on the outside of the furnace cover. The furnace cover support plate is hinged to one side of the furnace body via a rotating shaft. The drive assembly is mounted on the furnace cover support plate, and the output shaft of the drive assembly is connected to the furnace cover to drive the furnace cover to rotate around the axis of the furnace body.

[0036] A driving component, wherein the telescopic rod of the driving component is used to connect with the furnace cover support plate, and pushes the furnace cover support plate to rotate around the rotating shaft, so as to separate the furnace cover from the furnace body.

[0037] Preferably, it further includes a weighing mechanism for weighing the crucible and the sample to be tested, and a sample transfer mechanism for transferring the crucible and the sample to be tested.

[0038] in,

[0039] The weighing mechanism includes:

[0040] A turntable, wherein the turntable is provided with placement holes for placing crucibles, and the circle formed by the centers of a plurality of placement holes is coaxially arranged with the turntable;

[0041] A weighing balance is installed on one side of the turntable for weighing the crucible and the sample to be tested.

[0042] A lifting mechanism is used to drive the turntable to move vertically, so that the crucible has a first state of being placed on the weighing balance for weighing and a second state of being separated from the weighing balance.

[0043] A rotating mechanism for driving the turntable to rotate around its axis.

[0044] Preferably, it further includes a cleaning assembly for cleaning the crucible after combustion;

[0045] in,

[0046] The cleaning component includes:

[0047] A turntable, wherein a first cleaning position and a second cleaning position are provided on the turntable, the first cleaning position and the second cleaning position being used to place a crucible;

[0048] A negative pressure suction mechanism is set above the first cleaning position to remove residue from the crucible;

[0049] A cleaning component positioned above the second cleaning position.

[0050] Preferably, the cleaning assembly includes:

[0051] A mounting base positioned above the second cleaning position;

[0052] A positioning element disposed on the mounting base is used to fix the crucible in the second cleaning position;

[0053] A cleaning drive unit, wherein the output shaft of the cleaning drive unit is connected to a brush, driving the brush to rotate for cleaning the crucible;

[0054] A hopper for collecting residue is located below the turntable.

[0055] Preferably, the combustion detection device includes:

[0056] A calorific value temperature probe is installed in the combustion chamber, and the calorific value temperature probe is used to collect combustion temperature.

[0057] The analysis and control system is used to acquire the combustion temperature collected by the calorific value measuring probe and analyze the temperature rise curve.

[0058] Preferably, the combustion detection device further includes:

[0059] A test channel connected to the combustion chamber, wherein a first solenoid valve is installed on the test channel;

[0060] A detection module for detecting the elemental composition of combustion gases is connected to the outlet of the test channel, and the analysis and control system is used to receive the test results of the detection module and analyze and record them.

[0061] Preferably, it further includes:

[0062] The stirring assembly installed in the combustion chamber is used to mix the gases in the combustion chamber evenly.

[0063] The sample combustion testing equipment provided by this utility model is firstly equipped with a combustion chamber, a gas supply mechanism, a combustion detection device, and an opening and closing mechanism. The combustion chamber includes a furnace body and a furnace cover, forming a cavity between the furnace body and the furnace cover. A positioning point is set in the cavity for placing a crucible and the sample to be tested. An igniter is installed on the combustion chamber to heat and ignite the sample to be tested at the positioning point, eliminating the need for manual ignition. The gas supply mechanism is connected to the cavity and supplies oxygen to provide an oxygen-rich environment for the sample to be tested to burn completely. The combustion detection device detects the combustion characteristics of the sample. The opening and closing mechanism opens and closes the furnace cover, allowing the combustion chamber to be in an open or sealed state without the need for manual opening and closing of the furnace cover.

[0064] Secondly, a sample transfer mechanism is also included. This mechanism is used to transfer the test sample when the combustion chamber is open. The sample transfer mechanism moves the preset weight of the test sample and crucible to the positioning point. The furnace lid is then closed by the opening and closing mechanism, sealing the combustion chamber. Oxygen is supplied to the chamber by the gas supply mechanism, and the test sample is heated and burned by the igniter, ensuring complete combustion in an oxygen-rich environment. During or after combustion, the combustion characteristics of the test sample are detected by a combustion detection device. After detection, the furnace lid is opened by the opening and closing mechanism, and the sample transfer mechanism moves the crucible for subsequent tests. Throughout the entire sample combustion test, minimal manual intervention is required, reducing the intensity of manual operation and avoiding any safety risks posed by the high-temperature environment inside the combustion furnace.

[0065] Therefore, compared with the prior art, the sample combustion test equipment in this utility model embodiment can reduce the intensity of manual operation and avoid the impact of the high temperature environment in the combustion furnace on the safety of personnel. Attached Figure Description

[0066] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0067] Figure 1 A schematic diagram of the sample combustion testing device provided in this embodiment of the utility model;

[0068] Figure 2 A schematic diagram of the opening assembly provided in an embodiment of this utility model;

[0069] Figure 3 A schematic diagram of the structure of a furnace body provided in an embodiment of this utility model;

[0070] Figure 4 A schematic diagram of the structure of a furnace cover provided in an embodiment of this utility model;

[0071] Figure 5 A schematic diagram of the combustion chamber provided in an embodiment of this utility model;

[0072] Figure 6 A schematic diagram of a connecting assembly provided in an embodiment of the present utility model (the second end of the locking rod is inserted into the locking groove).

[0073] Figure 7 A schematic diagram of a connecting assembly provided in an embodiment of the present utility model (the second end of the locking rod is separated from the locking groove).

[0074] Figure 8 A schematic diagram of the weighing assembly provided in an embodiment of this utility model;

[0075] Figure 9 A schematic diagram of the cleaning assembly provided in an embodiment of this utility model;

[0076] Figure 10 This is a structural schematic diagram of a cross-sectional view of a combustion chamber provided in an embodiment of the present utility model.

[0077] Reference numerals: 1. Combustion chamber; 2. Crucible; 3. Ignition device; 4. Gas supply mechanism; 6. Opening and closing mechanism; 7. Sample transfer mechanism; 8. Weighing mechanism; 9. Cleaning assembly; 11. Furnace body; 12. Furnace cover; 13. Seal; 14. Stirring assembly; 15. Exhaust channel; 16. Chassis; 51. Calorific value probe; 52. Test channel; 53. First solenoid valve; 54. Detection module; 61. Connecting assembly; 62. Drive assembly; 63. Lid opening assembly; 64. Positioning plate; 611. First boss; 612. First groove; 613. Second groove; 614. Second boss; 616. Sliding... 617. Slot; 621. Locking rod; 622. Furnace cover rotation drive mechanism; 631. Furnace cover fixing plate; 632. Furnace cover support plate; 633. Drive component; 634. Lifting seat; 635. Lifting connecting seat; 636. Lifting drive component; 637. Synchronous pulley; 638. Synchronous belt; 639. Slide rail; 81. Turntable; 82. Weighing balance; 83. Lifting mechanism; 91. Turntable; 92. Negative pressure suction mechanism; 93. First moving drive component; 94. Cleaning assembly; 95. Second moving drive component; 941. Mounting seat; 942. Positioning component; 943. Cleaning drive component; 944. Brush; 945. Collection hopper. Detailed Implementation

[0078] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0079] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0080] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0082] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0083] The embodiments of this utility model are written in a progressive manner.

[0084] like Figures 1 to 10 As shown, this utility model embodiment provides a sample combustion testing device, including: a combustion chamber 1, the combustion chamber 1 including a furnace body 11 and a furnace cover 12, a cavity being formed between the furnace body 11 and the furnace cover 12, a positioning point being provided in the cavity, the positioning point being used to place a crucible 2 and a sample to be tested, an igniter 3 being provided on the combustion chamber 1, the igniter 3 being used to heat and ignite the sample to be tested located at the positioning point; a gas supply mechanism 4 communicating with the cavity and used to input oxygen into the cavity; a combustion detection device for detecting the combustion characteristics of the sample to be tested; an opening and closing mechanism for opening and closing the furnace cover 12, so that the combustion chamber 1 has an open state and a sealed state; and a sample transfer mechanism 7 for transferring the sample to be tested when the combustion chamber 1 is in the open state.

[0085] Current automated calorific value testing equipment requires pre-filling the sample and crucible with an oxygen bomb, separately opening and closing the oxygen bomb lid, aligning the oxygen bomb with the ignition device or ignition motor, and then placing it into the testing furnace for closed-lid analysis. This current automated calorific value testing equipment not only requires an independent oxygen bomb lid opening and closing mechanism but also necessitates the transfer of oxygen bombs back and forth, resulting in a complex structure and low transfer efficiency.

[0086] In addition, in the existing technology, the opening and closing of the combustion furnace, the ignition of the sample, and the transfer of the crucible 2 are all done manually. Manual operation is labor-intensive and prone to operational errors. Furthermore, the high-temperature environment inside the combustion furnace can easily endanger the safety of the operators.

[0087] The sample combustion testing equipment provided by this utility model is firstly equipped with a combustion chamber 1, a gas supply mechanism, a combustion detection device, and an opening and closing mechanism. The combustion chamber 1 includes a furnace body 11 and a furnace cover 12, forming a cavity between the furnace body 11 and the furnace cover 12. A positioning point is set in the cavity for placing a crucible 2 and the sample to be tested. An igniter 3 is set on the combustion chamber 1 to heat and ignite the sample to be tested at the positioning point without manual ignition. The gas supply mechanism is connected to the cavity and supplies oxygen to the cavity to provide an oxygen-rich environment for the sample to be tested to burn completely. The combustion detection device is used to detect the combustion characteristics of the sample to be tested. The opening and closing mechanism is used to open and close the furnace cover 12, allowing the combustion chamber 1 to be in an open or sealed state without manual opening and closing of the furnace cover 12.

[0088] Secondly, a sample transfer mechanism 7 is also provided. This mechanism is used to transfer the test sample when the combustion chamber 1 is open. The sample transfer mechanism 7 transfers the pre-set weight of the test sample and the crucible 2 to the positioning point. The furnace lid 12 is then closed via the opening and closing mechanism, sealing the combustion chamber 1. Oxygen is supplied to the chamber via the gas supply mechanism, and the test sample is heated and burned by the igniter 3, ensuring complete combustion in an oxygen-rich environment. During or after combustion, the combustion characteristics of the test sample are detected by a combustion detection device. After detection, the furnace lid 12 is opened via the opening and closing mechanism, and the crucible 2 is transferred by the sample transfer mechanism 7 for subsequent testing. Throughout the entire sample combustion test, minimal manual intervention is required, reducing the intensity of manual operation and avoiding any impact on operator safety from the high-temperature environment inside the combustion furnace.

[0089] Therefore, compared with the prior art, the sample combustion test equipment in this utility model embodiment can reduce the intensity of manual operation and avoid the impact of the high temperature environment in the combustion furnace on the safety of personnel.

[0090] In the above-mentioned device, the sample transfer mechanism 7 in this embodiment of the present invention can be used to place the test sample and crucible 2 of a preset weight at the positioning point. The test sample can be measured manually or by a weighing device, and no further restrictions are imposed here.

[0091] In one embodiment of the above-described device, the sample combustion testing equipment of this utility model further includes an exhaust channel 15, which is used to discharge the mixed gas in the combustion chamber 1 after the test. Furthermore, the exhaust channel 15 can be connected to a vacuum generator for rapid exhaust.

[0092] In the above-mentioned equipment, when the combustion chamber 1 is in the open state, the opening and closing mechanism opens the furnace cover 12, which facilitates the sample transfer mechanism 7 to transfer the sample to be tested and the crucible 2. When the combustion chamber 1 is in the closed state, the opening and closing mechanism closes the furnace cover 12. During the combustion process, the sample to be tested will generate a large amount of gas, and the furnace cover 12 and the furnace body 11 are in a sealed state. In one embodiment, the opening and closing mechanism of this utility model includes a connecting component 61, a driving component 62, and a cover opening component 63. The connecting component 61 is disposed on the inner circumference of the opening of the furnace body 11 and the outer circumference of the furnace cover 12. The furnace cover 12 is used to open and close the opening of the furnace body 11. The driving component 62 is used to drive the furnace cover 12 and the furnace body 11 to rotate relative to each other, so that the furnace cover 12 and the furnace body 11 have a locked state and an unlocked state. When the furnace cover 12 and the furnace body 11 are in the locked state, the furnace cover 12 and the furnace body 11 are sealed together by the connecting component 61 to prevent the high pressure environment in the combustion chamber 1 from blowing the furnace cover 12 open. When the furnace cover 12 and the furnace body 11 are in the unlocked state, the cover opening component 63 is used to separate the furnace cover 12 and the furnace body 11, so as to facilitate the sample transfer mechanism 7 to transfer the test sample and the crucible 2.

[0093] Furthermore, the igniter 3 is used to ignite and burn the sample to be tested. In this embodiment of the present invention, the igniter 3 is specifically a laser igniter 3 installed outside the combustion chamber 1. The laser igniter 3 uses a sealed head to project a laser beam onto the sample to be tested located at the ignition point.

[0094] Furthermore, as one embodiment, the opening and closing mechanism in this utility model embodiment also includes a positioning plate 64 and a sealing member 13. The positioning plate 64 is disposed inside the opening and is fixedly connected to the furnace body 11. The positioning plate 64 is used to abut against the inner side of the furnace cover 12 to position the furnace cover 12. The sealing member 13 is disposed between the positioning plate 64 and the furnace cover 12. When the furnace cover 12 is closed, the combustion chamber 1 is sealed by the sealing member 13.

[0095] Furthermore, as one embodiment, the sealing element 13 in this utility model embodiment can be disposed on the furnace cover 12 or on the sealing plate. Preferably, the sealing element 13 is disposed on the sealing plate.

[0096] Furthermore, in this embodiment of the invention, the sealing element 13 is specifically a sealing ring.

[0097] In the above structure, the drive component 62 is used to drive the furnace cover 12 and the furnace body 11 to rotate relative to each other, so that the furnace cover 12 and the furnace body 11 have a locked state and an unlocked state.

[0098] In one of the first embodiments, the connecting component 61 in this utility model includes an internal thread and an external thread. The internal thread is disposed on the inner circumference of the opening, and the external thread is disposed on the outer circumference of the furnace cover 12. The furnace cover 12 and the furnace body 11 are rotated around a first direction by the driving component 62, thereby fixing the furnace cover 12 and the furnace body 11 together. When it is necessary to open the furnace cover 12, the driving component 62 drives the furnace cover 12 and the furnace body 11 to rotate around a second direction, thereby separating the furnace cover 12 and the furnace body 11.

[0099] As a second implementation method, such as Figure 3 and Figure 4 As shown, the connecting component 61 in this embodiment of the present invention includes a first boss 611, a first groove 612, a second boss 614, and a second groove 613. The first boss 611 is disposed above the positioning plate 64 and is fixedly connected to the furnace body 11. The first boss 611 extends from the inner circumference of the opening towards the axis of the furnace body 11. Multiple first bosses 611 are provided, spaced apart around the inner circumference of the opening. A first groove 612 is formed between adjacent first bosses 611. A second groove 613 is provided on the outer circumference of the furnace cover 12, and the second groove 613 cooperates with the first boss 611. A second protrusion 614 is formed between two adjacent second grooves 613. The second protrusion 614 works in conjunction with the first groove 612. When the furnace body 11 and the furnace cover 12 are locked, the second protrusion 614 is located between the first protrusion 611 and the positioning plate 64. The first protrusion 611 and the positioning plate 64 limit the second protrusion 614 to prevent the furnace cover 12 from separating from the furnace body 11 due to the high temperature and high pressure environment in the combustion chamber 1. When the furnace body 11 and the furnace cover 12 are locked, the second protrusion 614 is opposite to the first groove 612, and the first protrusion 611 is opposite to the second groove 613, so that the furnace cover 12 can be separated from the furnace body 11.

[0100] As a third implementation method, such as Figure 6 and Figure 7 As shown, the connecting component 61 in this embodiment of the present invention further includes a locking groove, a sliding groove 616, and a locking rod 617. The locking groove is disposed on the outer periphery of the opening, with multiple locking grooves spaced apart around the outer periphery of the opening. The sliding groove 616 is disposed on the furnace cover 12. The first end of the locking rod 617 is slidably connected to the sliding groove 616, and the second end of the locking rod 617 is used to insert into the locking groove. When the first end of the locking rod 617 moves to the first side of the sliding groove 616, the second end of the locking rod 617 separates from the locking groove (see...). Figure 7 When the second end of the locking rod 617 moves to the second side of the sliding groove 616, the second end of the locking rod 617 is inserted into the locking groove (see...). Figure 6The furnace cover 12 and the furnace body 11 rotate relative to each other so that the locking rod 617 slides from the first side of the locking groove to the second side of the locking groove.

[0101] In the above structure, as one embodiment, the drive component 62 in this utility model embodiment can directly drive the furnace cover to rotate. As another embodiment, the drive component in this utility model embodiment includes a furnace cover rotation drive mechanism 621 and a furnace cover fixing plate 622. The furnace cover fixing plate 622 is used to be fixedly connected to the center of the furnace cover 12. The furnace cover fixing plate 622 is connected to the furnace cover rotation drive mechanism 621, and the furnace cover 12 fixing plate is driven to rotate by the furnace cover rotation drive mechanism 621.

[0102] In the aforementioned device, when the furnace cover 12 is in the unlocked state, the cover opening assembly 63 separates the furnace cover 12 from the furnace body 11. As a first embodiment, please refer to... Figure 2 As shown, in this embodiment of the present invention, the cover opening component 63 is used to move the furnace cover 12 along the axial direction of the furnace body 11, so that the furnace cover 12 is separated from the furnace body 11. The first type of cover opening component 63 provided in this embodiment of the present invention is mainly applicable to vertical combustion chambers 1.

[0103] As one embodiment, the cover opening component 63 in this utility model includes: a lead screw mounted on a lifting seat 633, a lead screw nut connected to the lead screw drive, the lead screw nut being connected to a lifting connecting seat 634, the lifting connecting seat 634 being connected to the furnace cover 12, and a lifting drive component that drives the lead screw to rotate. The lifting drive component drives the lead screw to rotate, thereby driving the lead screw nut and the lifting connecting seat 634 to move along the direction of the lead screw extension, thereby driving the furnace cover 12 to open and close.

[0104] Furthermore, the lifting drive assembly in this embodiment of the present invention includes a lifting drive component 635, a synchronous pulley 636, and a synchronous belt 367. The lifting drive component 635 is connected to the lead screw through the synchronous pulley 636 and the synchronous belt 637, thereby driving the lead screw to rotate.

[0105] Furthermore, the lifting drive component is preferably a drive motor.

[0106] Furthermore, the lifting connecting seat 634 and the lifting seat 633 are connected by a slide rail 638, which is used to guide the lifting connecting seat 634.

[0107] As a second implementation method, such as Figure 5As shown, the cover opening assembly 63 in this embodiment of the present invention includes a furnace cover support plate 631, a rotating shaft, and a driving component 632. The furnace cover support plate 631 is disposed on the outside of the furnace cover, and the furnace cover support plate 631 is rotatably connected to one side of the furnace body 11 via the rotating shaft. The driving component 62 is mounted on the furnace cover support plate 631, and the output shaft of the driving component 62 is connected to the furnace cover 12. The driving component 62 is used to drive the furnace cover 12 to rotate around the axis of the furnace body 11. The telescopic rod of the driving component 632 is used to connect to the furnace cover support plate 631, and the driving component 632 is used to push the furnace cover support plate 631 to rotate around the rotating shaft, so that the furnace cover is separated from the furnace body 11. This cover opening assembly 63 can be used in a horizontal combustion chamber 1.

[0108] Furthermore, in this embodiment of the invention, the driving component 632 is specifically a cylinder, a hydraulic cylinder, or a linear motor.

[0109] Furthermore, in this embodiment of the present invention, the drive component 62 is preferably a rotary motor, which is used to drive the furnace cover 12 to rotate around the axis of the furnace body 11.

[0110] In the above structure, such as Figure 8 As shown, the sample combustion testing equipment in this embodiment of the present invention also includes a weighing mechanism 8, which is used to weigh the crucible 2 and the sample to be tested before and after combustion. The sample transfer mechanism 7 is used to transfer the crucible 2 and the sample to be tested. By weighing the crucible 2 and the sample to be tested before and after combustion, the sample mass before and after the test is measured. The ash content of the sample can be calculated from the sample mass loss value.

[0111] Furthermore, as one embodiment, the weighing mechanism in this utility model includes a turntable 81 with placement holes for placing crucibles 2. A circle formed by the centers of multiple placement holes is coaxially arranged with the turntable 81. A weighing balance 82 is disposed on one side of the turntable 81 and is used to weigh the crucibles 2 and the sample to be tested. A lifting mechanism 83 is used to drive the turntable 81 to move vertically, so that the crucibles 2 have a first state of being placed on the weighing balance 82 for weighing and a second state of being separated from the weighing balance 82. A rotating mechanism is used to drive the turntable 81 to rotate around the axis. When the crucibles 2 are in the first state of being placed on the weighing balance 82 for weighing, they can be weighed by the weighing balance 82. When the crucibles 2 are in the first state of being separated from the weighing balance 82, the rotating mechanism can drive the turntable 81 to rotate, so that other crucibles 2 can be transferred to the top of the weighing balance 82.

[0112] In the above structure, as one implementation method, such as Figure 9As shown, the sample combustion testing device in this embodiment of the present invention further includes a cleaning component 9, which is used to clean the crucible 2 after combustion. The cleaning component 9 includes a turntable 91, a negative pressure suction mechanism 92, and a cleaning component 94. The turntable 91 is provided with a first cleaning position and a second cleaning position, which are used to place the crucible 2. The negative pressure suction mechanism 92 is disposed above the first cleaning position and is used to remove the residue in the crucible 2. The cleaning component 94 is disposed above the second cleaning position and is used to clean the residue in the crucible 2.

[0113] Furthermore, as one embodiment, the first moving drive member 93 in this utility model embodiment is used to drive the negative pressure suction mechanism 92 to move in the vertical direction; the second moving drive member 95 is used to drive the cleaning component 94 to move in the vertical direction.

[0114] Furthermore, as one embodiment, the first moving drive 93 and the second moving drive 95 can control the negative pressure suction mechanism 92 and the cleaning component 94 respectively, or the same moving drive can be used to simultaneously raise and lower the negative pressure suction mechanism 92 and the cleaning component 94.

[0115] Furthermore, the cleaning assembly 94 in this embodiment of the present invention includes a mounting base 941, a positioning member 942, a cleaning drive member 943, a brush 944, and a collection hopper 945. The mounting base 941 is disposed above the second cleaning position, the positioning member 942 is disposed on the mounting base 941, and the positioning member 942 is used to fix the crucible 2 in the second cleaning position. The output shaft of the cleaning drive member 943 is connected to the brush 944, and the cleaning drive member 943 is used to drive the brush 944 to rotate, so as to facilitate cleaning the crucible 2. The collection hopper 945 is disposed below the turntable 91 and is used to collect residue.

[0116] Specifically, after the sample to be tested has been fully combusted, the sample transfer mechanism 7 transfers the crucible 2 and the sample to be tested to the first cleaning position. The first moving drive 93 drives the negative pressure suction mechanism 92 to move vertically to a preset position. The negative pressure suction mechanism 92 removes the residue in the crucible 2. After suction is completed, the first moving drive 93 drives the negative pressure suction mechanism 92 to return to its initial position. The sample transfer mechanism 7 then transfers the crucible 2 and the sample to be tested to the second cleaning position. The second moving drive 95 drives the cleaning assembly 94. Moving vertically downwards, the crucible 2 is fixed in the second cleaning position by the positioning member 942. The cleaning drive member 943 drives the brush 944 to rotate and clean the crucible 2. The second moving drive member 95 drives the cleaning assembly 94 to move upwards and reset. The positioning member 942 releases the crucible 2. The sample transfer mechanism 7 transfers the crucible 2 and the sample to be tested to the first cleaning position. The first moving drive member 93 drives the negative pressure suction mechanism 92 to move vertically to the preset position. The negative pressure suction mechanism 92 removes the residue in the crucible 2.

[0117] In the above-described device, as one embodiment, the sample transfer mechanism 7 in this utility model embodiment can be provided in two parts: a first sample transfer mechanism is provided between the weighing mechanism 8 and the combustion chamber 1, and a second sample transfer mechanism is provided between the weighing mechanism 8 and the cleaning assembly 9. Adaptive combinations can also be made according to actual usage.

[0118] In one embodiment of the above-described device, the combustion detection apparatus of this utility model includes a calorific value measuring probe 51 and an analysis and control system. The calorific value measuring probe 51 is disposed in the combustion chamber 1 and is used to collect combustion temperature data. The analysis and control system is used to acquire the combustion temperature collected by the calorific value measuring probe 51 and analyze the temperature rise curve. The calorific value of the sample can be obtained through the sample mass and the temperature rise curve.

[0119] In the above structure, the calorific value temperature probe 51 can be set on the furnace body 11 or on the furnace cover 12. No further restrictions are made in this utility model.

[0120] In the aforementioned device, as one embodiment, such as Figure 10 As shown, the combustion detection device in this embodiment of the present invention further includes a test channel 52 and a detection module 54. The test channel 52 is connected to the combustion chamber 1, and a first solenoid valve 53 is provided on the test channel 52. The detection module 54 is connected to the outlet of the test channel 52 and is used to detect the elemental composition of the combustion gas. The analysis and control system is used to receive the test results of the detection module 54 and analyze and record them.

[0121] The detection module 54 includes, but is not limited to, infrared carbon, hydrogen, and sulfur detectors. Based on the sample quality and the detection module 54, the content of carbon, hydrogen, sulfur, and other components of the sample to be tested is obtained.

[0122] Furthermore, the various components of the detection module 54 can be combined and installed in series or in parallel.

[0123] In the above-mentioned device, as one embodiment, the sample combustion test device in this utility model embodiment further includes a stirring assembly 14, which is disposed in the combustion chamber 1 and is used to mix the gas in the combustion chamber 1 evenly.

[0124] In the above structure, as one embodiment, the sample combustion testing equipment in this utility model embodiment further includes a chassis 16 and a constant temperature device disposed inside the chassis 16. The chassis 16 is disposed outside the combustion chamber, and the constant temperature device is disposed between the chassis 16 and the combustion chamber. The constant temperature device is used to control the temperature inside the combustion chamber to ensure that the detection module and the combustion chamber operate at a stable temperature inside the chassis, prevent the mixed gas inside the combustion chamber from condensing, and ensure the accuracy of the calorific value measurement.

[0125] In the above structure, the stirring assembly 14 in this embodiment of the present invention is specifically a stirring fan. The number of stirring fans can be single or multiple, and the fan blades can be built-in or installed inside the combustion chamber 1 by means of a rotating seal. That is, the driving component of the fan is set outside the combustion chamber 1, and the rotating shaft is rotatably sealed to the combustion chamber 1.

[0126] In the above-described device, the sample transfer mechanism 7 in this embodiment of the present invention includes a crucible clamp and a robotic arm. The crucible clamp includes grippers and a gripper opening and closing structure, which is used to open and close the grippers to pick up the crucible. Both the crucible clamp and the robotic arm can adopt existing structures, which will not be described in detail here.

[0127] The implementation process of the sample combustion testing equipment provided in this embodiment of the utility model mainly includes the following steps:

[0128] 1. Weigh the sample to be tested using manual or automatic weighing devices, and record the sample mass and number to the analysis and control system;

[0129] 2. Open the furnace cover 12 using the opening and closing mechanism;

[0130] 3. The crucible and the sample to be tested are picked up by the first sample transfer mechanism and placed on the positioning point in the accommodating cavity;

[0131] 4. Close the furnace cover 12 via the opening and closing mechanism;

[0132] 5. Introduce oxygen into combustion chamber 1 through gas supply mechanism 4 to the preset pressure value, and then close gas supply mechanism 4;

[0133] 6. Ignite 3 ignites the sample to be tested;

[0134] 7. During the ignition and combustion of the sample, the temperature during the combustion process is collected and recorded by the calorific value measuring probe 51 and sent to the analysis and control system, and the temperature rise curve of the combustion process is analyzed.

[0135] 8. After complete combustion, the stirring component 14 mixes the gas in the combustion space evenly, the test channel 52 is opened, and the exhaust gas is detected and measured by the detection module 54. The composition values ​​of carbon, hydrogen, sulfur and other elements in the exhaust gas are analyzed and recorded to the control system.

[0136] 9. After the exhaust gas measurement is completed, the furnace cover 12 is opened through the opening and closing mechanism, and the cavity is purged by the stirring assembly 14;

[0137] 10. The first sample transfer mechanism transfers the crucible and sample to the weighing mechanism 8 and obtains the residual mass of the sample after combustion. The ash content of the sample is obtained based on the mass difference before and after combustion.

[0138] 11. The second sample transfer mechanism transfers the crucible and sample to the first cleaning position, and removes the residue in the crucible by the negative pressure suction mechanism 92.

[0139] 12. The second sample transfer mechanism transfers the crucible and sample to the second cleaning position, and the crucible is cleaned by the cleaning component 94;

[0140] 13. Repeat the material feeding process in step 11.

[0141] Therefore, it can be seen that the sample combustion testing device provided by this utility model embodiment requires minimal human intervention during the entire sample combustion test, reducing the intensity of manual operation and avoiding the impact of the high-temperature environment in the combustion furnace on human safety.

[0142] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sample combustion testing apparatus, characterized by, include: Combustion chamber (1), the combustion chamber includes furnace body (11) and furnace cover (12), a cavity is formed between the furnace body (11) and the furnace cover (12), a positioning point is provided in the cavity, the positioning point is used to place crucible (2) and test sample, an igniter (3) is provided on the combustion chamber, the igniter (3) is used to heat and ignite the test sample located at the positioning point; A gas supply mechanism (4) connected to the accommodating cavity for supplying oxygen into the accommodating cavity. A combustion detection device for detecting the combustion characteristics of the sample to be tested; An opening and closing mechanism is used to open and close the furnace cover (12) so that the combustion chamber has an open state and a sealed state; The sample transfer mechanism (7) is used to transfer the sample to be tested when the combustion chamber is in the open state.

2. The sample combustion testing device according to claim 1, characterized in that, The opening and closing mechanism includes: A connecting assembly (61) is provided on the inner periphery of the opening of the furnace body (11) and the outer periphery of the furnace cover (12). Drive assembly (62), the drive assembly (62) is used to drive the furnace cover (12) and the furnace body (11) to rotate relative to each other, so that the furnace cover (12) and the furnace body (11) have a locked state and an unlocked state; The opening assembly (63) is configured to separate the furnace cover (12) from the furnace body (11) when the furnace cover (12) is in the unlocked state.

3. The sample combustion testing device according to claim 2, characterized in that, The opening and closing mechanism further includes: A positioning plate (64) is fixedly connected to the furnace body (11) and disposed on the inner side of the opening. The positioning plate (64) is used to abut against the inner side of the furnace cover (12) for positioning. A sealing element (13) is provided between the positioning plate (64) and the furnace cover (12).

4. The sample combustion testing device according to claim 3, characterized in that, The connection component (61) includes: An internal thread is provided on the inner circumferential side of the opening; The furnace cover (12) is provided with an external thread on the outer periphery of the furnace cover (12), and the furnace cover (12) and the furnace body (11) are fixedly connected by threads.

5. The sample combustion testing device according to claim 3, characterized in that, The connection component (61) includes: A first boss (611) is fixedly connected to the furnace body (11) above the positioning plate (64), and a first groove (612) is formed between adjacent first bosses (611). A second groove (613) is provided at intervals on the outer periphery of the furnace cover (12) and is used in conjunction with the first boss (611). A second boss (614) is formed between adjacent second grooves (613) and is used in conjunction with the first groove (612). When the furnace body (11) and the furnace cover (12) are locked, the second boss (614) is located between the first boss (611) and the positioning plate (64); when the furnace body (11) and the furnace cover (12) are unlocked, the second boss (614) is opposite to the first groove (612), and the first boss (611) is opposite to the second groove (613).

6. The sample combustion testing device according to claim 3, characterized in that, The connection component (61) includes: A locking groove is provided on the outer periphery of the opening, and a plurality of the locking grooves are spaced apart around the outer periphery of the opening; A sliding groove (616) is provided on the furnace cover (12); A locking rod (617) has its first end slidably connected to the sliding groove (616), and its second end inserted into the locking groove. When the first end of the locking rod (617) moves to the first side of the sliding groove (616), the second end of the locking rod (617) separates from the locking groove. When the first end of the locking rod (617) moves to the second side of the sliding groove (616), the second end of the locking rod (617) is inserted into the locking groove. The furnace cover (12) rotates relative to the furnace body (11) so that the locking rod (617) slides from the first side of the locking groove to the second side of the locking groove.

7. The sample combustion testing apparatus according to any one of claims 2 to 6, characterized in that, The opening assembly (63) is used to drive the furnace cover (12) to move along the axial direction of the furnace body (11) so that the furnace cover (12) is separated from the furnace body (11).

8. The sample combustion testing apparatus according to any one of claims 2 to 6, characterized in that, The opening assembly (63) includes: A furnace cover support plate (631) is provided on the outside of the furnace cover (12). The furnace cover support plate (631) is hinged to one side of the furnace body (11) by a rotating shaft. The drive assembly (62) is installed on the furnace cover support plate (631), and the output shaft of the drive assembly (62) is connected to the furnace cover (12) to drive the furnace cover (12) to rotate around the axis of the furnace body (11). The drive unit (632) has a telescopic rod for connecting with the furnace cover support plate (631) to push the furnace cover support plate (631) to rotate around the rotating shaft so that the furnace cover (12) is separated from the furnace body (11).

9. The sample combustion testing apparatus according to any one of claims 1 to 6, characterized in that, It also includes a weighing mechanism (8) for weighing the crucible and the sample to be tested; in, The weighing mechanism (8) includes: A turntable (81) is provided with placement holes for placing crucibles, and the circle formed by the centers of a plurality of placement holes is coaxially arranged with the turntable (81). A weighing balance (82) is set on one side of the turntable (81) for weighing the crucible and the sample to be tested. The lifting mechanism (83) is used to drive the turntable (81) to move in the vertical direction so that the crucible has a first state of being placed on the weighing balance (82) for weighing and a second state of being separated from the weighing balance (82). A rotating mechanism for driving the turntable (81) to rotate around the axis.

10. The sample combustion testing apparatus according to any one of claims 1 to 6, characterized in that, It also includes a cleaning assembly (9) for cleaning the crucible after combustion; in, The cleaning component (9) includes: A turntable (91) is provided with a first cleaning position and a second cleaning position, which are used to place crucibles. A negative pressure suction mechanism (92) is set above the first cleaning position to remove residue from the crucible. A cleaning component (94) is positioned above the second cleaning position.

11. The sample combustion testing device according to claim 10, characterized in that, The cleaning component (94) includes: Mounting base (941) is provided above the second cleaning position; A positioning element (942) is provided on the mounting base (941) for fixing the crucible in the second cleaning position; A cleaning drive unit (943) is provided, the output shaft of which is connected to a brush (944) to drive the brush (944) to rotate, for cleaning the crucible; A hopper (945) for collecting residue is located below the turntable (91).

12. The sample combustion testing device according to claim 1, characterized in that, The combustion detection device includes: A calorific value temperature probe (51) is installed in the combustion chamber, and the calorific value temperature probe (51) is used to collect combustion temperature. The analysis and control system is used to acquire the combustion temperature collected by the calorific value measuring probe and analyze the temperature rise curve.

13. The sample combustion testing device according to claim 12, characterized in that, The combustion detection device further includes: A test channel (52) connected to the combustion chamber is provided with a first solenoid valve (53). A detection module (54) connected to the outlet of the test channel (52) is used to detect the elemental composition of the combustion gas. The analysis and control system is used to receive the test results of the detection module and analyze and record them.

14. The sample combustion testing device according to claim 1, characterized in that, Also includes: A stirring assembly (14) is provided in the combustion chamber to mix the gases in the combustion chamber evenly.

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