Device and method for testing fire resistance of rock wool board

Abstract

The invention belongs to the technical field of rock wool board testing, and particularly discloses a rock wool board fire resistance testing device and method.The rock wool board fire resistance testing device comprises a box-type heating furnace, a storage box is arranged at the position, close to the edge of one side, of the top of the box-type heating furnace, and a groove is formed in the top face in the box-type heating furnace; an exhaust port penetrating to the top of the box-type heating furnace is formed in the inner top surface of the groove; according to the invention, the rock wool board of which the fire resistance needs to be tested is placed in the storage frame, and then the interior of the box-type heating furnace is heated through the heating resistance plate, so that the temperature of the rock wool board is increased, the bending deformation degree of the arc-shaped bimetallic strip is gradually increased when the temperature is increased, and the induction adjusting assembly is triggered to work; the pollution discharge assembly and the gas filtering assembly can be driven to work through the induction adjusting assembly, fire extinguishing treatment is conducted on the rock wool board generating flames in the high-temperature state, and meanwhile generated stains and poisonous gas are treated.

Description

Technical Field

[0001] The present invention relates to the technical field of rock wool board testing, and particularly relates to a testing device and method for the fire resistance performance of a rock wool board. Background Art

[0002] The rock wool board, also known as the rock wool thermal insulation and decoration board, is an inorganic fiber board made from basalt as the main raw material through high-temperature melting and processing. It has the characteristics of light weight, low thermal conductivity, heat absorption, and non-flammability. When producing the rock wool thermal insulation and decoration board, it is necessary to detect the high-temperature fire resistance performance of the formed board to ensure the safety of subsequent decorative use.

[0003] At present, when detecting the fire resistance performance of the rock wool thermal insulation and decoration board, it is necessary to place the rock wool thermal insulation and decoration board inside a heating furnace, and generate high temperature through the resistance heating inside the furnace, so as to simulate the effect of the rock wool thermal insulation and decoration board being burned externally. When generating high temperature, the air pressure inside the furnace will be increased, and when the temperature is too high and the rock wool thermal insulation and decoration board catches fire, the fire source cannot be extinguished in time. The stains and toxic gases generated by combustion will be ejected outwards along with the high-pressure gas inside the furnace when the furnace door is opened subsequently, which is very easy to cause harm to the operators. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a testing device and method for the fire resistance performance of a rock wool board.

[0005] To achieve the above object, the present invention adopts the following technical solution: A testing device for the fire resistance performance of a rock wool board, including a box-type heating furnace. A storage box is arranged at the top of the box-type heating furnace near one side edge. A groove is opened on the inner top surface of the box-type heating furnace, and an exhaust port penetrating through the top of the box-type heating furnace is opened on the inner top surface of the groove. Sewage disposal components are arranged on the inner bottom surface of the box-type heating furnace near both side edges. An induction adjustment component is arranged on the inner wall of the box-type heating furnace near the top edge. A gas filtering component is arranged inside the exhaust port; The inner bottom surface of the box-type heating furnace near both side edges is in a concave shape. A bottom groove penetrating through the front and rear sides is opened at the middle of the bottom of the box-type heating furnace. A sealing groove is opened between the inner walls of the box-type heating furnace near the front side edge. A safety door is slidably arranged between the inner walls of the sealing groove, and one side of the safety door slidably penetrates to the outside of the box-type heating furnace.

[0006] Preferably, a smoke exhaust pipe is fixedly arranged above the exhaust port at the top of the box-type heating furnace. Two feeding pipes are fixedly communicated with the top of the storage box. Two guide rods are fixedly arranged on the rear inner wall of the box-type heating furnace. A storage frame is arranged inside the box-type heating furnace. The bottom of the storage frame is in a grid shape. Limiting grooves are formed in the inner walls on both sides of the box-type heating furnace. Both sides of the storage frame are slidably clamped inside the limiting grooves. A sliding plate is fixedly arranged at the bottom of the storage frame. The sliding plate is slidably connected between the outer surfaces of the two guide rods. Heating resistance plates are arranged inside the inner walls on both sides of the box-type heating furnace.

[0007] Preferably, the sewage discharge assembly comprises a plurality of rubber flappers. Sewage discharge cavities are formed in the inner walls on both sides of the box-type heating furnace near the bottom edges. One side of the bottom of each of the two sewage discharge cavities penetrates and communicates with the inside of the bottom groove. A plurality of sewage discharge ports are equidistantly arranged on the inner bottom surface of the box-type heating furnace near the two side edges. The plurality of sewage discharge ports all penetrate into the sewage discharge cavities. The plurality of sewage discharge ports on one side of the box-type heating furnace form a group. A rotating shaft is rotatably arranged between the plurality of sewage discharge ports in each group.

[0008] Preferably, a transmission cavity is formed in the inner wall of the rear side wall of the box-type heating furnace. One end of the rotating shaft penetrates to one side of the transmission cavity. Rubber flappers are obliquely arranged between the inner walls of the plurality of sewage discharge ports. The plurality of rubber flappers are all fixed on the outer surface of the rotating shaft. Sealing fits are correspondingly arranged between both sides of the plurality of rubber flappers and the inner walls on both sides of the sewage discharge ports. A dial plate is fixedly arranged on the outer surface of the rotating shaft near one end edge. One end of the dial plate extends to the middle part of the transmission cavity.

[0009] Preferably, the air filtering assembly comprises a sponge filter sheet. The bottom of the sponge filter sheet is in a triangular corrugated shape. A draw slot is formed in the inner wall of the groove near the top edge. An installation slot is formed in the inner wall of the exhaust port near the top edge of the draw slot. The installation slot is communicated with the draw slot, and the bottom of the installation slot is flush with the top of the draw slot. The sponge filter sheet is arranged between the inner walls of the installation slot. A sealing plate is slidably arranged between the inner walls of the draw slot. The top of the sealing plate is in contact with the bottom of the sponge filter sheet.

[0010] Preferably, a pressing plate is fixedly arranged on one side inner wall of the exhaust port. A gap is left between one side of the pressing plate and the inner wall of one side of the exhaust port. The bottom of the pressing plate is flush with the top of the sponge filter sheet. Trapezoidal grooves are formed in the inner bottom surface of the installation slot near the two side edges. Bending flow channels are formed in the inner bottom surface of each of the two trapezoidal grooves near one end edge. One end of each of the two bending flow channels is correspondingly communicated with the inside of the two sewage discharge cavities. The inner bottom surfaces of the two trapezoidal grooves are both inclined, and the inclined surfaces extend towards the connection part of the bending flow channels and the trapezoidal grooves.

[0011] Preferably, the induction adjustment component includes an arc-shaped bimetallic strip. One end of the arc-shaped bimetallic strip is fixed on one inner wall of the groove, and the other end of the arc-shaped bimetallic strip is connected to the bottom of the sealing plate near one side edge. An adjustment cavity is formed inside the box-type heating furnace, and the adjustment cavity is located directly above the arc-shaped bimetallic strip.

[0012] Preferably, a hollow slider is slidably arranged between the inner walls of the adjustment cavity. A contact rod is fixed to the bottom of the hollow slider. The bottom of the contact rod slidably penetrates into the groove and contacts the top arc surface of the arc-shaped bimetallic strip. A hollow tube is fixed to the top of the hollow slider. The bottom of the hollow tube is in communication with the inside of the hollow slider. The top of the hollow tube is closed and slidably penetrates into the inner bottom surface of the storage box. A plurality of filter ports are equidistantly arranged on the outer surface of the hollow tube near the top edge. A spring is fixed to the top of the hollow slider, and the top of the spring is fixed to the inner top surface of the adjustment cavity.

[0013] Preferably, rectangular cavities are formed inside both side walls of the box-type heating furnace. A plurality of spray heads are equidistantly arranged on the inner top surface of the box-type heating furnace near both side edges. Each of the plurality of spray heads is in communication with the rectangular cavity. First flow channels are formed on both inner walls of the adjustment cavity. One end of each of the two first flow channels penetrates into the rectangular cavity correspondingly. First side holes penetrating to the inside are formed near the bottom edges on both sides of the hollow slider. Each of the two first side holes is in communication with the first flow channel correspondingly. A second flow channel is formed on the front side of the adjustment cavity. One end of the second flow channel penetrates into the installation groove. A second side hole penetrating to the inside is formed in the middle of the front side of the hollow slider. The second side hole is in communication with the second flow channel. A bending channel is formed on the inner wall of the box-type heating furnace near the rear side edge. The top of the bending channel is in communication with the rear side of the adjustment cavity. The bottom of the bending channel penetrates into the transmission cavity. A bending lifting rod is arranged inside the bending channel. One end of the bending lifting rod is fixed to one side of the hollow slider near the top edge. The bottom of the bending lifting rod slidably extends into the transmission cavity. A T-shaped plate is fixed to the bottom of the bending lifting rod. The bottom of the T-shaped plate is inclined near both side edges and correspondingly extends below one end of the dial plate.

[0014] The present invention also provides a testing method for the fire resistance performance of a rock wool board, which is applied to a testing device for the fire resistance performance of a rock wool board. The testing method for the fire resistance performance of a rock wool board includes the following steps: Step S1: Place the rock wool board to be tested for fire resistance inside the storage frame, and then heat the inside of the box-type heating furnace through the heating resistance plate, so that the temperature of the rock wool board rises. When the temperature rises, the bending deformation degree of the arc-shaped bimetal sheet will gradually increase, thereby triggering the induction adjustment component to work. Through the induction adjustment component, the sewage discharge component and the air filtration component can be driven to work, extinguish the fire of the rock wool board that generates flames under high temperature conditions, and at the same time treat the generated stains and toxic gases; Step S2: When the sewage discharge component works, it is triggered by the induction adjustment component to drive the rotation of the rotating shaft, so that multiple rubber baffles flip inside the sewage discharge port, opening the sewage discharge port. At this time, the sewage on the inner bottom surface of the box-type heating furnace can flow into the sewage discharge cavity through the sewage discharge port, and finally flow out from the connection part between the sewage discharge cavity and the bottom groove; Step S3: When the air filtration component works, it is triggered by the induction adjustment component to moisten the sponge filter sheet through water flow. When the toxic gas with burning floating stains passes through the moist sponge filter sheet, the toxic substances and burning floating substances in the gas are filtered to prevent pollution of the external air environment; Step S4: When the induction adjustment component works, the temperature change inside the box-type heating furnace can be sensed through the arc-shaped bimetal sheet, so as to drive the hollow slider to slide upward. And after the arc-shaped bimetal sheet deforms, it can drive the sliding of the sealing plate to control the opening and closing of the exhaust port, so that the air filtration component works. During the upward sliding process, the opening and closing of the spray head can be controlled by the corresponding on-off of the first side hole and the first flow channel, and the infiltration of the water flow to the sponge filter sheet can be controlled by the corresponding on-off of the second side hole and the second flow channel. At the same time, when the hollow slider slides upward, it will control the sewage discharge component to work.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, the rock wool board to be tested for fire resistance is placed inside the storage frame, and then the inside of the box-type heating furnace is heated through the heating resistance plate, so that the temperature of the rock wool board rises. When the temperature rises, the bending deformation degree of the arc-shaped bimetal sheet will gradually increase, thereby triggering the induction adjustment component to work. Through the induction adjustment component, the sewage discharge component and the air filtration component can be driven to work, extinguish the fire of the rock wool board that generates flames under high temperature conditions, and at the same time treat the generated stains and toxic gases; 2. In the present invention, when the sewage discharge component works, it is triggered by the induction adjustment component to drive the rotation of the rotating shaft, so that multiple rubber baffles flip inside the sewage discharge port, opening the sewage discharge port. At this time, the sewage on the inner bottom surface of the box-type heating furnace can flow into the sewage discharge cavity through the sewage discharge port, and finally flow out from the connection part between the sewage discharge cavity and the bottom groove; 3. In the present invention, when the air filtering component works, it is triggered by the induction adjustment component, and the sponge filter is wetted by water flow. When the toxic gas with burning floating stains passes through the wetted sponge filter, the toxic substances and burning floating substances in the gas are filtered, preventing pollution of the external air environment. 4. In the present invention, when the induction adjustment component works, the arc-shaped bimetal can sense the temperature change inside the box-type heating furnace, thereby driving the hollow slider to slide upward. After the arc-shaped bimetal deforms, it can drive the sliding of the sealing plate, control the opening and closing of the exhaust port, and make the air filtering component work. When the hollow slider slides upward, it will control the sewage disposal component to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 8 is a three-dimensional structure schematic diagram of one side of a test device for the fire resistance performance of a rock wool board proposed by the present invention; Figure 2 FIG. 11 is a bottom three-dimensional structure schematic diagram of a test device for the fire resistance performance of a rock wool board proposed by the present invention; Figure 3 FIG. 14 is a front cross-sectional three-dimensional structure schematic diagram of a test device for the fire resistance performance of a rock wool board proposed by the present invention; Figure 4 FIG. 17 is a side cross-sectional three-dimensional structure schematic diagram of a test device for the fire resistance performance of a rock wool board proposed by the present invention; Figure 5 FIG. 20 is a side cross-sectional bottom three-dimensional structure schematic diagram of a test device for the fire resistance performance of a rock wool board proposed by the present invention; Figure 6 FIG. 23 is a cross-sectional three-dimensional structure schematic diagram of a test device for the fire resistance performance of a rock wool board proposed by the present invention; Figure 7 FIG. 26 is a cross-sectional three-dimensional structure schematic diagram of the flow path direction of the bending flow path in a test device for the fire resistance performance of a rock wool board proposed by the present invention; Figure 8 For the present invention Figure 3 Local enlarged view at A in Figure 9 For the present invention Figure 5 Local enlarged view at B in Figure 10 For the present invention Figure 6 Local enlarged view at C in

[0017] In the figure: 1. Box-type heating furnace; 2. Storage box; 3. Feed pipe; 4. Exhaust pipe; 5. Bottom groove; 6. Sealing groove; 7. Safety door; 8. Storage frame; 9. Guide rod; 10. Slide plate; 11. Heating resistance plate; 12. Limit groove; 13. Rectangular cavity; 14. Spraying head; 15. Sewage discharge cavity; 16. Sewage discharge port; 17. Rubber baffle; 18. Exhaust port; 19. Pressing plate; 20. Pulling slot; 21. Sealing plate; 22. Installation groove; 23. Trapezoidal groove; 24. Sponge filter; 25. Bending channel; 26. Bending lifting rod; 27. Transmission cavity; 28. T-shaped plate; 29. Pushing plate; 30. Rotating shaft; 31. Groove; 32. Arc-shaped bimetallic strip; 33. Adjusting cavity; 34. Hollow slider; 35. First side hole; 36. Second side hole; 37. Hollow pipe; 38. Filter port; 39. Spring; 40. First flow channel; 41. Bending flow channel; 42. Contact rod; 43. Second flow channel. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figure 1-10 , the present invention provides a technical solution: a test device for the fire resistance performance of rock wool boards, including a box-type heating furnace 1. A storage box 2 is arranged at the top of the box-type heating furnace 1 near one side edge. A groove 31 is opened on the inner top surface of the box-type heating furnace 1, and an exhaust port 18 penetrating through the top of the box-type heating furnace 1 is opened on the inner top surface of the groove 31. Sewage discharge components are arranged on both sides of the inner bottom surface of the box-type heating furnace 1 near the edges. An induction adjustment component is arranged on the inner wall of the box-type heating furnace 1 near the top edge. A gas filtering component is arranged inside the exhaust port 18; The inner bottom surface of the box-type heating furnace 1 is concave near both side edges. A bottom groove 5 penetrating through the front and rear sides is formed in the middle of the bottom of the box-type heating furnace 1. A sealing groove 6 is formed in the inner wall of the box-type heating furnace 1 near the front side edge. A safety door 7 is slidably arranged between the inner walls of the sealing groove 6. One side of the safety door 7 slides through to the outside of the box-type heating furnace 1. A smoke exhaust pipe 4 is fixed above the exhaust port 18 at the top of the box-type heating furnace 1. Two feed pipes 3 are fixedly communicated with the top of the storage box 2. Two guide rods 9 are fixed on the rear inner wall of the box-type heating furnace 1. A storage frame 8 is arranged inside the box-type heating furnace 1. The bottom of the storage frame 8 is grid-shaped. Limiting grooves 12 are formed in both inner walls of the box-type heating furnace 1. Both sides of the storage frame 8 are slidably clamped inside the limiting grooves 12. A sliding plate 10 is fixed to the bottom of the storage frame 8. The sliding plate 10 is slidably connected between the outer surfaces of the two guide rods 9. Heating resistance plates 11 are arranged inside both side walls of the box-type heating furnace 1.

[0020] The achieved effect is that the rock wool board whose fire resistance needs to be tested is placed inside the storage frame 8, and then the inside of the box-type heating furnace 1 is heated by the heating resistance plates 11, so that the temperature of the rock wool board rises. When the temperature rises, the bending deformation degree of the arc-shaped bimetallic sheet 32 will gradually increase, thus triggering the induction adjustment assembly to work. Through the induction adjustment assembly, the sewage discharge assembly and the air filtration assembly can be driven to work, to extinguish the fire of the rock wool board that generates flames under high temperature conditions and at the same time treat the generated stains and toxic gases. The bottom of the storage frame 8 is set to be grid-shaped, which is convenient for draining the water flow sprayed by the sprinkler head 14 after the temperature of the rock wool board is relatively high and catches fire, preventing the water flow from accumulating inside the storage frame 8. A bottom groove 5 is formed in the bottom of the box-type heating furnace 1, which is convenient for the generated sewage to be discharged from the middle of the bottom of the box-type heating furnace 1.

[0021] Such as Figure 3 、 Figure 4 and Figure 7As shown in the figure, the sewage discharge assembly includes a plurality of rubber baffles 17. Sewage discharge cavities 15 are provided at the bottom edges of both side walls of the box-type heating furnace 1. One side of the bottom of each of the two sewage discharge cavities 15 penetrates and communicates with the inside of the bottom groove 5. A plurality of sewage discharge ports 16 are equidistantly provided on the inner bottom surface of the box-type heating furnace 1 near both side edges. Each of the plurality of sewage discharge ports 16 penetrates into the sewage discharge cavity 15. The plurality of sewage discharge ports 16 on one side of the box-type heating furnace 1 are grouped together. A rotating shaft 30 is rotatably provided between each group of the plurality of sewage discharge ports 16. A transmission cavity 27 is provided inside the rear side wall of the box-type heating furnace 1. One end of the rotating shaft 30 penetrates to one side of the transmission cavity 27. Rubber baffles 17 are inclined between the inner walls of the plurality of sewage discharge ports 16. Each of the plurality of rubber baffles 17 is fixed on the outer surface of the rotating shaft 30. Both sides of each of the plurality of rubber baffles 17 are hermetically fitted with the inner walls on both sides of the sewage discharge port 16 respectively. A dial plate 29 is fixed near one end edge of the outer surface of the rotating shaft 30. One end of the dial plate 29 extends to the middle part of the transmission cavity 27.

[0022] The achieved effect is that during the process of bending the lifting rod 26 to lift the T-shaped plate 28 upward, one side of the dial plate 29 fixed to one end of the rotating shaft 30 is pushed upward through the inclined surfaces on both sides of the T-shaped plate 28, which can drive the rotating shaft 30 to rotate, thereby causing the plurality of rubber baffles 17 to flip inside the sewage discharge port 16, opening the sewage discharge port 16. At this time, the sewage on the inner bottom surface of the box-type heating furnace 1 can flow into the sewage discharge cavity 15 through the sewage discharge port 16 and finally flow out from the communicating part between the sewage discharge cavity 15 and the bottom groove 5.

[0023] As Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 9 shown in the figure, the air filtration assembly includes a sponge filter sheet 24. The bottom of the sponge filter sheet 24 is in a triangular corrugated shape. A draw groove 20 is provided between the inner walls of the groove 31 near the top edge. An installation groove 22 is provided between the inner walls of the exhaust port 18 near the top edge of the draw groove 20. The installation groove 22 communicates with the draw groove 20, and the bottom of the installation groove 22 is flush with the top of the draw groove 20. The sponge filter sheet 24 is arranged between the inner walls of the installation groove 22. A sealing plate 21 is slidably arranged between the inner walls of the draw groove 20. The top of the sealing plate 21 is in contact with the bottom of the sponge filter sheet 24. A pressing plate 19 is fixed to one side inner wall of the exhaust port 18. A gap is left between one side of the pressing plate 19 and one side inner wall of the exhaust port 18. The bottom of the pressing plate 19 is flush with the top of the sponge filter sheet 24. Trapezoidal grooves 23 are provided on the inner bottom surface of the installation groove 22 near both side edges. Bending flow channels 41 are provided on the inner bottom surface of each of the two trapezoidal grooves 23 near one end edge. One end of each of the two bending flow channels 41 communicates with the inside of the two sewage discharge cavities 15 respectively. The inner bottom surfaces of the two trapezoidal grooves 23 are inclined, and the inclined surfaces extend towards the connection part between the bending flow channel 41 and the trapezoidal groove 23.

[0024] The achieved effect is that during the upward sliding of the hollow slider 34, first, the first side hole 35 communicates with the first flow channel 40. At this time, the top of the hollow tube 37 extends into the interior of the storage tank 2. The water flow inside the storage tank 2 enters the hollow tube 37 through the filter port 38, then flows into the interior of the hollow slider 34. And at this time, the first side hole 35 communicates with the first flow channel 40, so the water flow can enter the installation groove 22. The sponge filter 24 is moistened by the water flow. Thus, when the toxic gas with burning floating stains passes through the moist sponge filter 24, the toxic substances and burning floating substances in the gas are filtered, preventing pollution of the external air environment. When the water flow moistens the sponge filter 24, the arc-shaped bimetallic strip 32 drives the sealing plate 21 to slide. The sealing plate 21 is still in a state of closing the bottom of the exhaust port 18 and has not completely slid out. So at this time, the water flow drained from the sponge filter 24 can flow into the sewage chamber 15 through the bending flow channels 41 inside the trapezoidal grooves 23 on both sides of the installation groove 22. During the continuous upward sliding of the hollow slider 34, the first side hole 35 is misaligned with the first flow channel 40, and the water supply to the sponge filter 24 stops. At this time, the second side hole 36 communicates with the second flow channel 43, enabling the water flow to flow into the rectangular chamber 13 to supply water to the sprinkler head 14 to extinguish the fire source generated by the rock wool board.

[0025] Such as Figure 4 、 Figure 5 、 Figure 6 、 Figure 9 and Figure 10As shown in the figure, the induction adjustment assembly includes an arc-shaped bimetallic strip 32. One end of the arc-shaped bimetallic strip 32 is fixed on one inner wall of the groove 31, and the other end of the arc-shaped bimetallic strip 32 is connected to the bottom of the sealing plate 21 near one side edge. An adjustment cavity 33 is formed inside the box-type heating furnace 1, and the adjustment cavity 33 is located directly above the arc-shaped bimetallic strip 32. A hollow slider 34 is slidably arranged between the inner walls of the adjustment cavity 33. A contact rod 42 is fixed to the bottom of the hollow slider 34. The bottom of the contact rod 42 slidably penetrates into the inside of the groove 31 and contacts the top arc surface of the arc-shaped bimetallic strip 32. A hollow tube 37 is fixed to the top of the hollow slider 34. The bottom of the hollow tube 37 is in communication with the inside of the hollow slider 34. The top of the hollow tube 37 is closed and slidably penetrates into the inner bottom surface of the storage box 2. A plurality of filter ports 38 are equidistantly arranged on the outer surface of the hollow tube 37 near the top edge. A spring 39 is fixed to the top of the hollow slider 34, and the top of the spring 39 is fixed to the inner top surface of the adjustment cavity 33. Rectangular cavities 13 are formed inside both side walls of the box-type heating furnace 1. A plurality of spray heads 14 are equidistantly arranged on the inner top surface of the box-type heating furnace 1 near both side edges, and the plurality of spray heads 14 are respectively in communication with the rectangular cavities 13. First flow channels 40 are formed on both inner walls of the adjustment cavity 33. One end of each of the two first flow channels 40 respectively penetrates into the inside of the rectangular cavity 13. First side holes 35 penetrating to the inside are formed near the bottom edges on both sides of the hollow slider 34, and the two first side holes 35 are respectively in communication with the first flow channels 40. A second flow channel 43 is formed on the front side of the adjustment cavity 33. One end of the second flow channel 43 penetrates into the inside of the installation groove 22. A second side hole 36 penetrating to the inside is formed in the middle of the front side of the hollow slider 34, and the second side hole 36 is in communication with the second flow channel 43. A bending channel 25 is formed on the inner wall of the box-type heating furnace 1 near the rear side edge. The top of the bending channel 25 is in communication with the rear side of the adjustment cavity 33. The bottom of the bending channel 25 penetrates into the inside of the transmission cavity 27. A bending lifting rod 26 is arranged inside the bending channel 25. One end of the bending lifting rod 26 is fixed to one side of the hollow slider 34 near the top edge. The bottom of the bending lifting rod 26 slidably extends into the inside of the transmission cavity 27. A T-shaped plate 28 is fixed to the bottom of the bending lifting rod 26. The bottom of the T-shaped plate 28 is inclined near both side edges and respectively extends below one end of the dial plate 29.

[0026] The achieved effect is that the temperature change inside the box-type heating furnace 1 can be sensed through the arc-shaped bimetallic strip 32. The arc-shaped bimetallic strip 32 is a composite material composed of two metal materials with suitable properties. Due to the different thermal expansion coefficients of the two component layers, when the temperature changes, the deformation of the active layer is greater than that of the passive layer. Thus, the whole arc-shaped bimetallic strip 32 will bend towards the passive layer side, and the curvature of this composite material changes to generate deformation. When the temperature rises, the arc-shaped bimetallic strip 32 will contract and the top arc surface will bulge upward. Since the contact rod 42 is in close contact with the top arc surface of the arc-shaped bimetallic strip 32, it can drive the hollow slider 34 to slide upward. And after the arc-shaped bimetallic strip 32 generates shrinkage deformation, it can drive the sealing plate 21 to slide towards the exhaust port 18 side to control the opening and closing of the exhaust port 18. When the hollow slider 34 slides upward, it will also control the operation of the sewage discharge component through the bent lifting rod 26.

[0027] For example, in one embodiment, the present invention also provides a method for testing the fire resistance of a rock wool board, which is applied to a testing device for the fire resistance of a rock wool board as described above, and includes the following steps: Step S1: Place the rock wool board to be tested for fire resistance inside the storage frame 8, and then heat the inside of the box-type heating furnace 1 through the heating resistance plate 11, so that the temperature of the rock wool board rises. When the temperature rises, the bending deformation degree of the arc-shaped bimetallic strip 32 will gradually increase, thereby triggering the induction adjustment component to work. Through the induction adjustment component, the sewage discharge component and the air filtration component can be driven to work, to extinguish the fire of the rock wool board that generates flames under high temperature conditions and simultaneously treat the generated stains and toxic gases; Step S2: When the sewage discharge component works, it is triggered by the induction adjustment component to drive the rotating shaft 30 to rotate, so that a plurality of rubber baffles 17 flip inside the sewage discharge port 16 to open the sewage discharge port 16. At this time, the sewage on the inner bottom surface of the box-type heating furnace 1 can flow into the sewage discharge cavity 15 through the sewage discharge port 16 and finally flow out from the connecting part between the sewage discharge cavity 15 and the bottom groove 5; Step S3: When the air filtration component works, it is triggered by the induction adjustment component to moisten the sponge filter 24 through water flow. Thus, when the toxic gas with burning floating stains passes through the moist sponge filter 24, the toxic substances and burning floating substances in the gas are filtered to prevent pollution of the external air environment; Step S4: When the induction adjustment component works, the temperature change inside the box-type heating furnace 1 can be sensed through the arc-shaped bimetal sheet 32, thereby driving the hollow slider 34 to slide upward. After the arc-shaped bimetal sheet 32 deforms, it can drive the sliding of the sealing plate 21 to control the opening and closing of the exhaust port 18, enabling the air filtration component to work. During the upward sliding process, the opening and closing of the spray head 14 can be controlled by the corresponding on-off of the first side hole 35 and the first flow channel 40, and the wetting of the sponge filter 24 by the water flow can be controlled by the corresponding on-off of the second side hole 36 and the second flow channel 43. At the same time, when the hollow slider 34 slides upward, it will control the sewage discharge component to work.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A test device for the fire resistance performance of a rock wool board, characterized in that, It includes a box-type heating furnace (1). A storage box (2) is arranged at the top of the box-type heating furnace (1) near one side edge. A groove (31) is formed on the inner top surface of the box-type heating furnace (1). An exhaust port (18) penetrating through the top of the box-type heating furnace (1) is formed on the inner top surface of the groove (31). Sewage disposal components are arranged on the inner bottom surface of the box-type heating furnace (1) near both side edges. An induction adjustment component is arranged on the inner wall of the box-type heating furnace (1) near the top edge. A gas filtering component is arranged inside the exhaust port (18). The inner bottom surface of the box-type heating furnace (1) near both side edges is concave. A bottom groove (5) penetrating through the front and back sides is formed in the middle of the bottom of the box-type heating furnace (1). A sealing groove (6) is formed between the inner walls of the box-type heating furnace (1) near the front side edge. A safety door (7) is slidably arranged between the inner walls of the sealing groove (6). One side of the safety door (7) slidably penetrates to the outside of the box-type heating furnace (1).

2. The testing device for the fire resistance performance of a rock wool board according to claim 1, characterized in that: A smoke exhaust pipe (4) is fixed above the exhaust port (18) at the top of the box-type heating furnace (1). Two feed pipes (3) are fixedly communicated with the top of the storage box (2). Two guide rods (9) are fixed on the rear inner wall of the box-type heating furnace (1). A storage frame (8) is arranged inside the box-type heating furnace (1). The bottom of the storage frame (8) is in a grid shape. Limiting grooves (12) are formed on both inner walls of the box-type heating furnace (1). Both sides of the storage frame (8) are slidably clamped inside the limiting grooves (12). A sliding plate (10) is fixed at the bottom of the storage frame (8). The sliding plate (10) is slidably connected between the outer surfaces of the two guide rods (9). Heating resistance plates (11) are arranged inside both side walls of the box-type heating furnace (1).

3. The test device for the fire resistance performance of a rock wool board according to claim 2, characterized in that: The sewage disposal component includes a plurality of rubber flaps (17). Sewage chambers (15) are formed on both side walls of the box-type heating furnace (1) near the bottom edge. One side of the bottom of both sewage chambers (15) penetrates and communicates with the inside of the bottom groove (5). A plurality of sewage ports (16) are equidistantly arranged on the inner bottom surface of the box-type heating furnace (1) near both side edges. All the sewage ports (16) penetrate to the inside of the sewage chambers (15). The plurality of sewage ports (16) on one side of the box-type heating furnace (1) are in a group. A rotating shaft (30) is rotatably arranged between the plurality of sewage ports (16) in each group.

4. The testing device for the fire resistance performance of a rock wool board according to claim 3, characterized in that: A transmission cavity (27) is formed inside the rear side wall of the box-type heating furnace (1). One end of the rotating shaft (30) penetrates to one side of the transmission cavity (27). Rubber flaps (17) are inclinedly arranged between the inner walls of the plurality of sewage ports (16). All the rubber flaps (17) are fixed on the outer surface of the rotating shaft (30). Both sides of all the rubber flaps (17) are hermetically attached to the inner walls on both sides of the sewage ports (16) correspondingly. A dial plate (29) is fixed on the outer surface of the rotating shaft (30) near one end edge. One end of the dial plate (29) extends to the middle part of the transmission cavity (27).

5. The testing device for the fire resistance performance of a rock wool board according to claim 4, characterized in that: The air filter assembly includes a sponge filter element (24). The bottom of the sponge filter element (24) is in a triangular corrugated shape. A pulling slot (20) is formed between the inner walls of the groove (31) near the top edge. An installation slot (22) is formed between the inner walls of the exhaust port (18) near the top edge of the pulling slot (20). The installation slot (22) communicates with the pulling slot (20), and the bottom of the installation slot (22) is flush with the top of the pulling slot (20). The sponge filter element (24) is arranged between the inner walls of the installation slot (22). A sealing plate (21) is slidably arranged between the inner walls of the pulling slot (20), and the top of the sealing plate (21) is in contact with the bottom of the sponge filter element (24).

6. The testing device for the fire resistance performance of a rock wool board according to claim 5, characterized in that: A pressing plate (19) is fixed to one inner wall of the exhaust port (18). There is a gap between one side of the pressing plate (19) and one inner wall of the exhaust port (18). The bottom of the pressing plate (19) is flush with the top of the sponge filter element (24). Trapezoidal slots (23) are formed near the two side edges of the inner bottom surface of the installation slot (22). Bending flow channels (41) are formed near one end edge of the inner bottom surfaces of the two trapezoidal slots (23). One end of each of the two bending flow channels (41) communicates with the inside of the two sewage chambers (15) correspondingly. The inner bottom surfaces of the two trapezoidal slots (23) are inclined, and the inclined surfaces extend towards the connection parts of the bending flow channels (41) and the trapezoidal slots (23).

7. A testing device for the fire resistance performance of a rock wool board according to claim 6, characterized in that: The induction adjustment assembly includes an arc-shaped bimetallic strip (32). One end of the arc-shaped bimetallic strip (32) is fixed to one inner wall of the groove (31). The other end of the arc-shaped bimetallic strip (32) is connected to the bottom of the sealing plate (21) near one side edge. An adjustment cavity (33) is formed inside the box-type heating furnace (1). The adjustment cavity (33) is located directly above the arc-shaped bimetallic strip (32).

8. The testing device for the fire resistance performance of a rock wool board according to claim 7, wherein: A hollow slider (34) is slidably arranged between the inner walls of the adjustment cavity (33). A contact rod (42) is fixed to the bottom of the hollow slider (34). The bottom of the contact rod (42) slidably penetrates into the inside of the groove (31) and is in contact with the top arc surface of the arc-shaped bimetallic strip (32). A hollow tube (37) is fixed to the top of the hollow slider (34). The bottom of the hollow tube (37) communicates with the inside of the hollow slider (34). The top of the hollow tube (37) is closed and slidably penetrates into the inner bottom surface of the storage box (2). A plurality of filter openings (38) are equidistantly formed near the top edge of the outer surface of the hollow tube (37). A spring (39) is fixed to the top of the hollow slider (34). The top of the spring (39) is fixed to the inner top surface of the adjustment cavity (33).

9. The testing device for the fire resistance performance of a rock wool board according to claim 8, characterized in that: Rectangular cavities (13) are formed inside both side walls of the box-type heating furnace (1). A plurality of spray heads (14) are evenly arranged at equal intervals near the two side edges of the inner top surface of the box-type heating furnace (1). The plurality of spray heads (14) are respectively communicated with the rectangular cavities (13). First flow channels (40) are formed on both inner walls of the adjustment cavity (33). One ends of the two first flow channels (40) respectively penetrate through to the inside of the rectangular cavity (13). First side holes (35) penetrating through to the inside are formed near the bottom edges on both sides of the hollow slider (34). The two first side holes (35) are respectively communicated with the first flow channels (40). A second flow channel (43) is formed on the front side of the adjustment cavity (33). One end of the second flow channel (43) penetrates through to the inside of the installation groove (22). A second side hole (36) penetrating through to the inside is formed at the middle position on the front side of the hollow slider (34). The second side hole (36) is communicated with the second flow channel (43). A bending channel (25) is formed on the inner wall of the box-type heating furnace (1) near the rear side edge. The top of the bending channel (25) is communicated with the rear side of the adjustment cavity (33). The bottom of the bending channel (25) penetrates through to the inside of the transmission cavity (27). A bending lifting rod (26) is arranged inside the bending channel (25). One end of the bending lifting rod (26) is fixed near the top edge on one side of the hollow slider (34). The bottom of the bending lifting rod (26) slidably extends to the inside of the transmission cavity (27). A T-shaped plate (28) is fixed to the bottom of the bending lifting rod (26). The bottom of the T-shaped plate (28) is inclined near the two side edges and respectively extends below one ends of the dial plates (29).

10. A test method for the fire resistance performance of a rock wool board, which is applied to a test device for the fire resistance performance of a rock wool board as described in any one of claims 1-9, characterized in that, Including the following steps: Step S1: Place the rock wool board to be tested for fire resistance inside the storage frame (8). Then, heat the inside of the box-type heating furnace (1) through the heating resistance plate (11), so that the temperature of the rock wool board rises. When the temperature rises, the bending deformation degree of the arc-shaped bimetal sheet (32) will gradually increase, thereby triggering the induction adjustment component to work. Through the induction adjustment component, the sewage discharge component and the air filtration component can be driven to work, so as to extinguish the fire of the rock wool board generating flames in the high-temperature state and simultaneously treat the generated stains and toxic gases; Step S2: When the sewage discharge component works, it is triggered by the induction adjustment component to drive the rotating shaft (30) to rotate, so that a plurality of rubber baffles (17) flip inside the sewage discharge port (16), opening the sewage discharge port (16). At this time, the sewage on the inner bottom surface of the box-type heating furnace (1) can flow into the sewage discharge cavity (15) through the sewage discharge port (16), and finally flow out from the communicating part between the sewage discharge cavity (15) and the bottom groove (5). Step S3: When the air filtering component works, it is triggered by the induction regulating component, and the sponge filter sheet (24) is wetted by water flow. Therefore, when the toxic gas with burning floating stains passes through the wetted sponge filter sheet (24), the toxic substances and burning floating substances in the gas are filtered to prevent pollution of the external air environment; Step S4: When the induction regulating component works, the temperature change inside the box-type heating furnace (1) can be sensed through the arc-shaped bimetal sheet (32), so as to drive the hollow slider (34) to slide upward. And after the arc-shaped bimetal sheet (32) deforms, it can drive the sliding of the sealing plate (21) to control the opening and closing of the exhaust port (18), so that the air filtering component works. During the upward sliding process, the opening and closing of the spray head (14) can be controlled by the corresponding on-off of the first side hole (35) and the first flow channel (40), and the infiltration of water flow to the sponge filter sheet (24) can be controlled by the corresponding on-off of the second side hole (36) and the second flow channel (43). At the same time, when the hollow slider (34) slides upward, it will control the operation of the sewage disposal component.

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