Plastic powder combustion performance detection device and detection method

Abstract

The invention discloses a plastic powder combustion performance detection device and method, and relates to the technical field of plastic powder.The plastic powder combustion performance detection device comprises a test box, a cavity is formed in the test box, an observation window is formed in the test box, a camera is arranged on the outer side of one side of the observation window, and a combustion table is arranged in the cavity; a liftable sleeve table is arranged on the outer side of the combustion table in a sleeving mode, a cleaning assembly is arranged on the lower side of the sleeve table, the top of the cavity communicates with a smoke exhaust pipe, the output end of the smoke exhaust pipe communicates with a catalytic oxidation reactor, an igniter is arranged on the inner wall of the cavity, and a semiconductor thermoelectric piece and a humidity sensor are fixedly connected to the inner wall of the cavity; the cavity is communicated with an ultrasonic humidifier and a rotary dehumidifier through pipelines, a poisonous gas sensor is arranged in the testing box, and the camera, the ultrasonic humidifier, the poisonous gas sensor and the igniter are all in signal connection with a processor.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic powder, in particular to a device and method for detecting the combustion performance of plastic powder. Background Art

[0002] Plastic powder is solvent-free, pollution-free, recyclable, environmentally friendly, energy and resource-saving, labor-saving, and has high mechanical strength. As an environmentally friendly spraying material, the flame retardant properties and combustion safety of plastic powder are crucial. Existing combustion performance testing methods have the following shortcomings:

[0003] 1. Large environmental interference: Traditional testing is mostly carried out in open or semi-open environments. Temperature and humidity fluctuations significantly affect the repeatability of combustion behavior, resulting in test data deviation.

[0004] 2. Low cleaning efficiency: Combustion residues (such as molten coke) need to be manually scraped and wiped, which is time-consuming and easily damages the test surface, affecting the accuracy of subsequent tests.

[0005] 3. Lack of toxic gas treatment: Highly toxic gases such as CO and HCN produced by combustion are often discharged directly without purification measures, which endangers the health of operators and the environment.

[0006] 4. Low degree of automation: Ignition, fire extinguishing, data recording and result judgment rely on manual operation, which is prone to subjective errors and low efficiency.

[0007] 5. Single function: Most devices only focus on burning time or flame spread, and lack comprehensive monitoring and feedback of multiple parameters such as toxic gas concentration, ambient temperature and humidity.

[0008] Therefore, it is necessary to design a plastic powder combustion performance detection device and a detection method to improve the accuracy of plastic powder combustion performance detection. Summary of the Invention

[0009] The purpose of the present invention is to provide a device and method for detecting the combustion performance of plastic powder to solve the problems raised in the above background technology.

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions: a plastic powder combustion performance detection device, comprising a test box, a cavity is provided in the test box, an observation window is provided on the test box, a camera is provided on the outside of one side of the observation window, a combustion table is provided in the cavity, a liftable sleeve is provided on the outside of the combustion table, a cleaning component is provided on the lower side of the sleeve, the top of the cavity is connected to a smoke exhaust pipe, the output end of the smoke exhaust pipe is connected to a catalytic oxidation reactor, an igniter is provided on the inner wall of the cavity, a semiconductor thermoelectric plate and a humidity sensor are fixedly connected to the inner wall of the cavity, the cavity is connected to an ultrasonic humidifier and a rotary dehumidifier through a pipe, a toxic gas sensor is provided in the test box, and the camera, ultrasonic humidifier, toxic gas sensor and igniter are all signal-connected to a processor.

[0011] According to the above technical solution, the sleeve is sealed and slidably connected to the combustion table, and the side of the sleeve away from the combustion table is sealed and slidably connected to the inner wall of the cavity. Four hydraulic telescopic cylinders are provided at the four corners of the lower side of the sleeve, and the fixed ends of the four hydraulic telescopic cylinders are fixedly connected to the inner wall of the cavity.

[0012] According to the above technical solution, the cleaning component includes two linear motors arranged parallel to each other, the fixed ends of the linear motors are fixedly connected to the bottom side of the sleeve, and the output ends of the two linear motors are commonly connected to a horizontally arranged connecting plate, one side of the connecting plate is fixedly connected to a push plate inclined toward the side close to the combustion table, and the side of the push plate facing away from the combustion table is hinged with a wiping plate, an angle is formed between the wiping plate and the push plate, and the side of the wiping plate facing away from the push plate is fixedly connected to a wiping cloth.

[0013] According to the above technical solution, a number of grooves are provided on the wiping plate, and a press-type nozzle is provided at the center of each groove. The fixed end of the press-type nozzle is fixedly connected to the push plate, the output end of the press-type nozzle is fixedly connected to the wiping plate, and the input end of the press-type nozzle is connected to the water tank through a pipe passing through the inner wall of the cavity.

[0014] According to the above technical solution, two vertical support plates are provided on the side of the connecting plate away from the push plate, a mesh plate is fixedly connected between the two support plates, a water-absorbing sponge is fixedly connected to the side of the mesh plate away from the connecting plate, and several fans are provided on the side of the mesh plate close to the connecting plate, and the fans are fixedly connected to the support plate through a bracket.

[0015] According to the above technical solution, a waste port is provided on the inner wall of the lower side of the cavity located on the side of the combustion platform, and the output end of the waste port is detachably sealed and connected to a waste box.

[0016] According to the above technical solution, the cavity is further connected to a carbon dioxide generator through a pipeline, and the carbon dioxide generator is located on one side of the test box.

[0017] According to the above technical solution, a pneumatic gate is provided on one side of the cavity.

[0018] According to the above technical solution, the detection method of the plastic powder combustion performance detection device is:

[0019] S1: Set the specific temperature and humidity environment according to the requirements, and ignite the plastic powder for combustion monitoring;

[0020] S2: Based on the preset values of the processor, T1, the time when the flame retardancy of the plastic powder reaches the requirement, T2, the actual combustion time of the plastic powder, C1, the warning value of the toxic gas concentration generated by the plastic powder, and C2, the toxic gas concentration generated by the actual combustion of the plastic powder, T2 and C2 are compared with T1 and C1 respectively.

[0021] S3: Clean the residue after burning through the cleaning component.

[0022] According to the above technical solution, the specific steps of the detection method of the plastic powder combustion performance detection device: S2 are as follows:

[0023] S21: When T2 ≥ T1 and C2 ≤ C1, it indicates that the flame retardancy of the plastic powder and the concentration of toxic gas generated after combustion can meet the use requirements and can be put into use;

[0024] S22: When T2 ≥ T1, but C2 > C1, it indicates that the actual concentration of toxic gas generated after the plastic powder is burned exceeds the usage standard, and the ingredients of the material should be improved with respect to the toxic gas concentration;

[0025] S23: When C2≤C1, but T2<T1, it indicates that the flame retardancy of the plastic powder does not meet the use standard, and the flame retardancy of the plastic powder should be improved;

[0026] S24: When T2<T1, and C2>C1, it indicates that the flame retardancy of the plastic powder and the concentration of toxic gas generated after combustion do not meet the use standards, and the ingredients of the plastic powder with respect to flame retardancy and toxic gas concentration are improved.

[0027] Compared with the existing technology, the beneficial effects achieved by the present invention are: the present invention ensures that the test environment is consistent each time by setting up semiconductor thermoelectric plates for precise temperature control and ultrasonic humidifiers / rotary dehumidifiers for precise humidity adjustment, eliminates the influence of temperature and humidity fluctuations on the combustion behavior of plastic powder, and improves the accuracy of combustion detection.

[0028] The cleaning component is set to automatically remove the residue after combustion to prepare for the next combustion detection.

[0029] By setting up toxic gas sensors and cameras, and using the processor to detect the detection data of plastic powder combustion, the quality and safety of the plastic powder can be detected and determined, and the subsequent improvement and optimization direction of the plastic powder can be clarified, the number of detections can be reduced, and the detection cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the test box of the present invention;

[0033] Figure 3 It is a schematic structural diagram of the cleaning component of the present invention;

[0034] In the figure: 1. Test box; 2. Pneumatic gate; 3. Cavity; 4. Observation window; 5. Combustion table; 6. Set table; 7. Hydraulic telescopic cylinder; 8. Cleaning component; 9. Waste port; 10. Waste box; 11. Smoke exhaust pipe; 12. Catalytic oxidation reactor; 13. Carbon dioxide generator; 14. Semiconductor thermoelectric chip; 15. Ultrasonic humidifier; 16. Humidity sensor; 17. Rotary dehumidifier; 18. Toxic gas sensor; 19. Ignitor; 20. Linear motor; 21. Connecting plate; 22. Push plate; 23. Wiping plate; 24. Wiping cloth; 25. Groove; 26. Press-type nozzle; 27. Water tank; 28. Support plate; 29. Mesh plate; 30. Absorbent sponge; 31. Fan. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1-3 The present invention provides a technical solution: a plastic powder combustion performance detection device, including a test box 1, a cavity 3 is opened in the test box 1, and a pneumatic gate 2 is provided on one side of the cavity 3. The pneumatic gate 2 is used to open and close the cavity 3 to prevent the sample from being affected by external environmental factors during the combustion detection process.

[0037] An observation window 4 is provided on the test box 1 for observing the sample during the test. A camera is provided on one side of the observation window 4. The camera is located outside the test box 1 and is used to record the burning time of the plastic powder.

[0038] A combustion table 5 is provided in the cavity 3, and a liftable sleeve 6 is provided on the outside of the combustion table 5. The sleeve 6 is sealed and slidably connected to the combustion table 5. The side of the sleeve 6 away from the combustion table 5 is sealed and slidably connected to the inner wall of the cavity 3. Four hydraulic telescopic cylinders 7 are provided at the four corners of the lower side of the sleeve 6, and the fixed ends of the four hydraulic telescopic cylinders 7 are fixedly connected to the lower inner wall of the cavity 3.

[0039] A cleaning assembly 8 is provided on the lower side of the combustion table 6. The cleaning assembly 8 is used to clean the residue on the combustion table 5 after the combustion test of the plastic powder is completed.

[0040] A waste port 9 is provided on the inner wall of the lower side of the cavity 3 on the side of the combustion table 5, and a waste box 10 is provided at the output end of the waste port 9. The waste box 10 is located on one side of the test box 1. The waste box 10 is detachably sealed and connected to the output end of the waste port 9. The residues removed by the cleaning component 8 are discharged from the test box 1 through the waste port 9 and enter the waste box 10.

[0041] The top of the cavity 3 is connected to a smoke exhaust pipe 11, and a smoke exhaust valve (not shown in the figure) is provided on the smoke exhaust pipe 11. The output end of the smoke exhaust pipe 11 is connected to a catalytic oxidation reactor 12. The catalytic oxidation reactor 12 is located on one side of the test box 1. The catalytic oxidation reactor is an existing conventional technology. The catalytic oxidation reactor 12 is used to convert toxic gases such as CO / HCN into CO2 / H2O, so as to prevent the toxic gases from being directly discharged and causing air pollution.

[0042] The cavity 3 is further connected to a carbon dioxide generator 13 via a pipeline. The carbon dioxide generator 13 is located at one side of the test box 1 and is used to extinguish the burning sample in the cavity 3 .

[0043] Multiple semiconductor thermoelectric sheets 14 are fixedly connected to the inner wall of the cavity 3 on both sides adjacent to the observation window 4. The temperature inside the cavity 3 is controlled by the semiconductor thermoelectric sheets 14, and the combustion test is performed at the set temperature to improve the accuracy of the test results.

[0044] The cavity 3 is connected to an ultrasonic humidifier 15 through a pipe. The ultrasonic humidifier 15 is arranged on the outside of the test box 1. The ultrasonic humidifier 15 generates atomized water vapor and performs a combustion test at a set humidity to improve the accuracy of the test results. A humidity sensor 16 is fixedly connected to the inner wall of the cavity 3, and the humidity of the air in the cavity 3 is monitored by the humidity sensor 16.

[0045] The cavity 3 is also connected to a rotary dehumidifier 17 through a pipeline. After the sample completes the combustion test, the rotary dehumidifier 17 is used to remove the water vapor in the cavity 3 to keep the cavity 3 dry, thereby increasing the service life of the test box 1 and preventing it from affecting the combustion test of the next group of material samples.

[0046] A toxic gas sensor 18 is provided in the test box 1 , and the toxic gas sensor 18 samples and analyzes the gas generated by the combustion of the sample in the cavity 3 through a sampling tube.

[0047] The toxic gas sensor 18 is used to detect whether the concentration of toxic gases such as CO (carbon monoxide) and HCN (hydrogen cyanide) is generated after the sample is burned.

[0048] An igniter 19 is provided on the inner wall of the cavity 3. The igniter is conventional technology and is used to ignite the sample to cause the plastic powder to burn.

[0049] The ultrasonic humidifier 15, the toxic gas sensor 18 and the igniter 19 are all signal-connected to the processor.

[0050] The cleaning assembly 8 includes two linear motors 20 . The two linear motors 20 are arranged parallel to each other, and the fixed ends of the two linear motors 20 are fixedly connected to the bottom side of the nesting table 6 .

[0051] The output ends of the two linear motors 20 are commonly connected to a connecting plate 21, which is arranged horizontally. The connecting plate 21 is away from the linear motor 20 and is fixedly connected to a push plate 22 on one side along its width direction. The push plate 22 is arranged vertically and tilted at an angle of 30° toward the side close to the combustion table 5. The push plate 22 is hinged to a wipe plate 23 on the side away from the combustion table 5, and a 65° angle is formed between the wipe plate 23 and the push plate 22.

[0052] A wiping cloth 24 is fixedly connected to the side of the wiping plate 23 facing away from the push plate 22. The wiping plate 23 faces away from the push plate 22 and has several grooves 25 along the length direction. The several grooves 25 are arranged in a linear array. A press-type nozzle 26 is provided at the center of each groove 25. The press-type nozzle is an existing conventional technology. The fixed end of the press-type nozzle 26 is fixedly connected to the push plate 22, and the output end of the press-type nozzle 26 is fixedly connected to the wiping plate 23. The input end of the press-type nozzle 26 passes through the inner wall of the cavity 3 through a pipe and is connected to a water tank 27. The water tank 27 is fixedly connected to the outer wall of the test box 1. After being pressed, the press-type nozzle 26 soaks water on the wiping cloth 24, and the combustion table 5 is scrubbed by the wiping cloth 24.

[0053] Two vertical support plates 28 are provided on the side of the connecting plate 21 away from the linear motor 20 and away from the push plate 22 along its width direction. The two support plates 28 are respectively arranged at both ends of the connecting plate 21 along the length direction. The two support plates 28 are arranged parallel to each other. A mesh plate 29 is fixedly connected between the two support plates 28. The mesh plate 29 is arranged horizontally. A water-absorbing sponge 30 is fixedly connected to the side of the drying plate away from the connecting plate 21. Several fans 31 are provided on the side of the mesh plate 29 close to the connecting plate 21. A bracket is provided on the outside of the several fans 31. The bracket is fixedly connected to the support plate 28, and the water-absorbing sponge 30 is blown dry by the fan 31.

[0054] In this embodiment, the pneumatic gate 2 is opened, the sample is placed at the center of the combustion table 5, and the semiconductor thermoelectric chip 14 and the ultrasonic humidifier 15 are controlled by the processor to start respectively, and a specific temperature and humidity are set for the cavity, thereby reducing the impact of environmental factors on the combustion test and improving the accuracy of the test results.

[0055] The sample is then ignited by an igniter 19 ; and a toxic gas sensor 18 is used to detect whether the sample generates the concentration of toxic gases such as CO (carbon monoxide) and HCN (hydrogen cyanide) after combustion.

[0056] The processor presets that under the same environmental conditions, when the time for the plastic powder to be burned is T1, the flame retardancy of the plastic powder meets the use requirements; the camera monitors the actual time for the plastic powder to be burned, which is recorded as T2;

[0057] The processor presets a warning value of the toxic gas concentration generated after the plastic powder is burned, which is recorded as C1, and the actual concentration of the toxic gas generated by the combustion is C2.

[0058] When T2 ≥ T1, it indicates that the actual flame retardancy of the plastic powder is not lower than the flame retardancy required by the plastic powder;

[0059] When T2 < T1, it indicates that the actual flame retardancy of the plastic powder is lower than the flame retardancy required by the plastic powder;

[0060] When C2≤C1, it indicates that the actual concentration of the toxic gas generated after the plastic powder is burned does not exceed the warning value;

[0061] When C2>C1, it indicates that the actual concentration of the toxic gas produced after the plastic powder is burned exceeds the warning value;

[0062] When T2≥T1 and C2≤C1, it indicates that the flame retardancy of the plastic powder and the concentration of toxic gas generated after combustion can meet the use requirements and can be put into use;

[0063] When C2≤C1, but T2<T1, it indicates that the flame retardancy of the plastic powder does not meet the use standard, and the flame retardancy of the plastic powder should be improved.

[0064] When T2≥T1, but C2>C1, it indicates that the actual concentration of toxic gas generated after the plastic powder is burned exceeds the usage standard, and the ingredients of the material should be improved with respect to the toxic gas concentration.

[0065] When T2<T1 and C2>C1, it indicates that the flame retardancy of the plastic powder and the concentration of toxic gas generated after combustion do not meet the use standards, and the ingredients of the plastic powder with respect to flame retardancy and toxic gas concentration should be improved.

[0066] After the test is completed, the exhaust valve is opened to allow the smoke generated by the combustion of the sample to enter the catalytic oxidation reactor 12 through the exhaust valve for reaction and conversion into CO2 / H2O, thereby preventing toxic gases from being directly discharged and causing air pollution.

[0067] By controlling the output end of the hydraulic telescopic cylinder 7 to extend, the sleeve table 6 rises, and then controlling the output end of the linear motor 20 to move, the push plate 22 is in direct contact with the combustion table 5, and the residue on the combustion table 5 is pushed out of the combustion table 5 and moved out from the waste port 9 into the waste box 10.

[0068] During the pushing process of the push plate 22 , the wiping plate 23 contacts the combustion table 5 , and under the pressure of the combustion table 5 , the pressing nozzle 26 sprays clean water, which soaks the wiping cloth 24 and rubs the combustion table 5 through the wiping cloth 24 .

[0069] At the same time, after scrubbing with the rag 24, the residual moisture on the combustion table 5 is absorbed and scrubbed a second time with the absorbent sponge 30, thereby completing the cleaning of the combustion table 5. After the cleaning is completed, the output end of the hydraulic telescopic cylinder 7 is controlled to extend again, so that the linear motor 20 drives the connecting plate 21 to move and reset without contacting the combustion table 5, thereby preventing the stains on the push plate 22 from contacting the combustion table 5 and affecting the test effect of the next sample. After the linear motor 20 drives the connecting plate 21 to move and reset, the output end of the hydraulic telescopic cylinder 7 is controlled to retract, and the sleeve 6 descends and resets.

[0070] Testing method of plastic powder combustion performance testing device:

[0071] S1: Set the specific temperature and humidity environment according to the requirements, and ignite the plastic powder for combustion monitoring;

[0072] S2: Based on the preset values of the processor, T1, the time when the flame retardancy of the plastic powder reaches the requirement, T2, the actual combustion time of the plastic powder, C1, the warning value of the toxic gas concentration generated by the plastic powder, and C2, the toxic gas concentration generated by the actual combustion of the plastic powder, T2 and C2 are compared with T1 and C1 respectively.

[0073] S3: The residue after combustion is cleaned by the cleaning component 8.

[0074] S21: When T2 ≥ T1 and C2 ≤ C1, it indicates that the flame retardancy of the plastic powder and the concentration of toxic gas generated after combustion can meet the use requirements and can be put into use;

[0075] S22: When T2 ≥ T1, but C2 > C1, it indicates that the actual concentration of toxic gas generated after the plastic powder is burned exceeds the usage standard, and the ingredients of the material should be improved with respect to the toxic gas concentration;

[0076] S23: When C2≤C1, but T2<T1, it indicates that the flame retardancy of the plastic powder does not meet the use standard, and the flame retardancy of the plastic powder should be improved;

[0077] S24: When T2<T1, and C2>C1, it indicates that the flame retardancy of the plastic powder and the concentration of toxic gas generated after combustion do not meet the use standards, and the ingredients of the plastic powder with respect to flame retardancy and toxic gas concentration are improved.

[0078] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0079] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. Plastic powder combustion performance detection device, characterized by: The invention comprises a test box (1), wherein a cavity (3) is provided in the test box (1), an observation window (4) is provided on the test box (1), a camera is provided on the outer side of one side of the observation window (4), a combustion table (5) is provided in the cavity (3), a lifting table (6) is provided on the outer side of the combustion table (5), a cleaning component (8) is provided on the lower side of the table (6), a smoke exhaust pipe (11) is connected to the top of the cavity (3), and an output end of the smoke exhaust pipe (11) is connected to a catalytic oxidation reaction chamber. The device (12) is provided with an igniter (19) on the inner wall of the cavity (3), a semiconductor thermoelectric plate (14) and a humidity sensor (16) are fixedly connected to the inner wall of the cavity (3), the cavity (3) is connected to an ultrasonic humidifier (15) and a rotary dehumidifier (17) through a pipeline, a toxic gas sensor (18) is provided in the test box (1), and the camera, ultrasonic humidifier (15), toxic gas sensor (18) and igniter (19) are all signal-connected to a processor.

2. The plastic powder combustion performance detection device according to claim 1, characterized in that: The sleeve (6) is sealed and slidably connected to the combustion table (5), and the side of the sleeve (6) away from the combustion table (5) is sealed and slidably connected to the inner wall of the cavity (3). Four hydraulic telescopic cylinders (7) are provided at the four corners of the lower side of the sleeve (6), and the fixed ends of the four hydraulic telescopic cylinders (7) are fixedly connected to the inner wall of the cavity (3).

3. The plastic powder combustion performance detection device according to claim 2, characterized in that: The cleaning assembly (8) includes two linear motors (20) arranged parallel to each other, the fixed ends of the linear motors (20) are fixedly connected to the bottom side of the sleeve (6), the output ends of the two linear motors (20) are commonly connected to a horizontally arranged connecting plate (21), one side of the connecting plate (21) is fixedly connected to a push plate (22) inclined toward the side close to the combustion table (5), the side of the push plate (22) facing away from the combustion table (5) is hingedly connected to a wiping plate (23), an angle is formed between the wiping plate (23) and the push plate (22), and the side of the wiping plate (23) facing away from the push plate (22) is fixedly connected to a wiping cloth (24).

4. The plastic powder combustion performance detection device according to claim 3, characterized in that: The wiping plate (23) is provided with a plurality of grooves (25), and a pressing nozzle (26) is provided at the center of each groove (25). The fixed end of the pressing nozzle (26) is fixedly connected to the push plate (22), the output end of the pressing nozzle (26) is fixedly connected to the wiping plate (23), and the input end of the pressing nozzle (26) is connected to the water tank (27) through a pipe penetrating the inner wall of the cavity (3).

5. The plastic powder combustion performance detection device according to claim 4, characterized in that: Two vertical support plates (28) are provided on the side of the connecting plate (21) away from the push plate (22), a mesh plate (29) is fixedly connected between the two support plates (28), a water-absorbing sponge (30) is fixedly connected to the side of the mesh plate (29) away from the connecting plate (21), and a plurality of fans (31) are provided on the side of the mesh plate (29) close to the connecting plate (21), and the fans (31) are fixedly connected to the support plates (28) through brackets.

6. The plastic powder combustion performance detection device according to claim 5, characterized in that: A waste opening (9) is provided on the inner wall of the lower side of the cavity (3) on one side of the combustion platform (5), and an output end of the waste opening (9) is detachably sealed and connected to a waste box (10).

7. The plastic powder combustion performance detection device according to claim 6, characterized in that: The cavity (3) is further connected to a carbon dioxide generator (13) via a pipeline, and the carbon dioxide generator (13) is located on one side of the test box (1).

8. The plastic powder combustion performance detection device according to claim 7, characterized in that: A pneumatic gate (2) is provided on one side of the cavity (3).

9. The detection method of the plastic powder combustion performance detection device according to claims 1-8, characterized in that: S1: Set the specific temperature and humidity environment according to the requirements, and ignite the plastic powder for combustion monitoring; S2: Based on the preset values of the processor, T1, the time when the flame retardancy of the plastic powder reaches the requirement, T2, the actual combustion time of the plastic powder, C1, the warning value of the toxic gas concentration generated by the plastic powder, and C2, the toxic gas concentration generated by the actual combustion of the plastic powder, T2 and C2 are compared with T1 and C1 respectively. S3: Clean the residue after combustion through the cleaning component (8).

10. The detection method of the plastic powder combustion performance detection device according to claim 9, characterized in that: The specific steps of S2 are as follows: S21: When T2 ≥ T1 and C2 ≤ C1, it indicates that the flame retardancy of the plastic powder and the concentration of toxic gas generated after combustion can meet the use requirements and can be put into use; S22: When T2 ≥ T1, but C2 > C1, it indicates that the actual concentration of toxic gas generated after the plastic powder is burned exceeds the usage standard, and the ingredients of the material should be improved with respect to the toxic gas concentration; S23: When C2≤C1, but T2<T1, it indicates that the flame retardancy of the plastic powder does not meet the use standard, and the flame retardancy of the plastic powder should be improved; S24: When T2<T1, and C2>C1, it indicates that the flame retardancy of the plastic powder and the concentration of toxic gas generated after combustion do not meet the use standards, and the ingredients of the plastic powder with respect to flame retardancy and toxic gas concentration are improved.

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