Building material incombustibility test furnace

Abstract

The utility model provides a building material incombustibility test furnace, and relates to the field of building material experiments. The building material incombustibility test furnace comprises a base, a ventilation pipe is fixed to the top of the base, ventilation holes are formed in the outer surface of the ventilation pipe, a combustion chamber is arranged at the top of the ventilation pipe, a material conveying device is arranged outside the combustion chamber, and a smoke exhaust hood is arranged above the combustion chamber. The top of the smoke exhaust hood is communicated with a smoke exhaust pipe, the top of the smoke exhaust pipe is communicated with a connecting pipe, and fan blades are arranged in the smoke exhaust hood and fixed to the smoke exhaust hood through a motor. According to the building material incombustibility test furnace, a heating combustion experiment can be carried out on building materials through combustion of the combustion furnace end, the experiment state of the building materials can be conveniently observed through the right moving-out material conveying opening of the combustion cage after sufficient heating, whether the building materials have flammability or not is judged, and the situation that scalds are likely to happen when the building materials are taken out manually is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of building materials testing, specifically a building materials non-combustibility testing furnace. Background Technology

[0002] The non-combustible testing furnace for building materials is primarily used to evaluate the combustion performance of building materials. This equipment conducts tests under laboratory conditions to assess the combustion performance of building materials, particularly their non-combustibility or flame-retardancy. The non-combustible testing furnace is suitable for various building materials, including composite products, and can test each component material separately.

[0003] During the operation of the test furnace, the building material sample to be tested needs to be placed in the test furnace, and the appropriate temperature and time should be set according to the test requirements. After heating, special tools or gloves are required to remove and observe the sample. This process can easily cause burns, and the building materials can easily generate smoke during the experiment, which can affect the experimental environment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a building material non-combustibility testing furnace, which solves the problems of easy burns during operation and the generation of smoke during the experiment, which affects the experimental environment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a building material non-combustibility testing furnace, including a base, a ventilation pipe fixed to the top of the base, ventilation holes opened on the outer surface of the ventilation pipe, a combustion chamber provided at the top of the ventilation pipe, a material conveying device provided outside the combustion chamber, a smoke exhaust hood provided above the combustion chamber, a smoke exhaust pipe connected to the top of the smoke exhaust hood, a connecting pipe connected to the top of the smoke exhaust pipe, and fan blades provided inside the smoke exhaust hood, the fan blades being fixed to the smoke exhaust hood by a motor;

[0008] The combustion chamber includes a base plate, an experimental furnace cavity, a material conveying opening, a temperature sensor, and a vent. The bottom of the base plate is fixedly connected to a ventilation pipe, and a vent is provided on the top of the base plate. A temperature sensor is installed on the outer surface of the experimental furnace cavity. The material conveying opening is located on the outer surface of the experimental furnace cavity. A combustion furnace head is provided inside the experimental furnace cavity. A material conveying device is fixed on the outer surface of the experimental furnace cavity and below the material conveying opening.

[0009] Preferably, the material conveying device comprises a conveying track, a driving motor, a screw rod, a sliding block, a supporting rod and a combustion cage, the inside of the conveying track is slidably provided with the sliding block, the side of the conveying track is fixedly connected with the driving motor, the output end of the driving motor is fixed with the screw rod, the screw rod penetrates through the sliding block and is threadedly connected with the sliding block, the top of the sliding block is fixed with the supporting rod, and the end, away from the sliding block, of the supporting rod is fixed with the combustion cage.

[0010] Preferably, the combustion furnace head adopts a gas combustion mode for heating.

[0011] Preferably, the inside of the base is provided with a replaceable gas tank, and the gas tank is communicated with the combustion furnace head.

[0012] Preferably, the smoke exhaust hood is arranged in a "horn" shape.

[0013] Preferably, the ventilation hole on the ventilation pipe is communicated with the experimental furnace cavity through the air hole.

[0014] Preferably, the temperature sensor is a flame temperature sensor.

[0015] (Three) beneficial effects

[0016] The utility model provides a building material non -combustible test furnace. Have the following beneficial effects:

[0017] 1, this building material non -combustible test furnace, the building material material that needs to be experimented is placed on the combustion cage, and the sliding block can be driven to walk along the conveying track by starting the driving motor, the movement of the sliding block can drive the supporting rod and the combustion cage to extend into the inside of the experimental furnace cavity and move to the top of the combustion furnace head and stop, and the building material can be heated and burned by the combustion furnace head, and after sufficient heating, the material conveying opening is taken out to the right of the combustion cage to facilitate the observation of the experimental state of the building material to judge whether it is flammable, and the situation that the artificial taking out is easy to scald is effectively reduced.

[0018] 2, this building material non -combustible test furnace, the smoke generated during the combustion experiment can be discharged from the smoke exhaust pipe through the rotation of the smoke exhaust hood and the fan blade, effectively reducing the pollution of the experimental environment caused by the smoke. ACCURACY OF DRAWINGS

[0019] Fig. 1 It is a structural schematic view of the utility model;

[0020] Fig. 2 It is a partial structural schematic view of the utility model;

[0021] Fig. 3 It is a material conveying device and combustion chamber structural schematic view of the utility model.

[0022] The components are as follows: 1. Base; 2. Ventilation pipe; 3. Ventilation hole; 4. Material conveying device; 401. Conveying track; 402. Drive motor; 403. Screw; 404. Slider; 405. Support rod; 406. Combustion cage; 5. Combustion chamber; 501. Base plate; 502. Experimental furnace cavity; 503. Material conveying opening; 504. Temperature sensor; 505. Ventilation hole; 6. Fume hood; 7. Fume pipe; 8. Connecting pipe; 9. Fan blade; 10. Motor; 11. Combustion furnace head. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] This utility model embodiment provides a building material non-combustibility testing furnace, such as Figs. 1-3 As shown, the furnace includes a base 1, a ventilation pipe 2 fixed on the top of the base 1, and ventilation holes 3 on the outer surface of the ventilation pipe 2. The ventilation holes 3 allow the air outside the experimental furnace to be exchanged with the air inside the experimental furnace cavity 502. A combustion chamber 5 is set on the top of the ventilation pipe 2, and a combustion furnace head 11 is set inside the combustion chamber 5. The combustion chamber 5 can be heated by using gas or other gases as fuel.

[0025] A material conveying device 4 is installed outside the combustion chamber 5. The material conveying device 4 can place materials in a container and transport the container to the top of the heating element for convenient combustion testing. A fume hood 6 is installed above the combustion chamber 5. The fume hood 6 can transport the smoke generated during the experiment for easy smoke discharge. The top of the fume hood 6 is connected to a fume exhaust pipe 7, and the top of the fume exhaust pipe 7 is connected to a connecting pipe 8. The connecting pipe 8 can extend to the outside of the laboratory to improve the air quality of the internal experimental environment. A fan blade 9 is installed inside the fume hood 6. The fan blade 9 is fixed to the fume hood 6 by a motor 10. The operation of the motor 10 can drive the fan blade 9 to rotate. The rotation of the fan blade 9 can accelerate the air circulation in the fume exhaust pipe 7 and improve the smoke exhaust effect.

[0026] Combustion chamber 5 includes a base plate 501, an experimental furnace cavity 502, a material conveying opening 503, a temperature sensor 504, and a vent 505. The bottom of the base plate 501 is fixedly connected to the ventilation pipe 2, and the top of the base plate 501 has a vent 505. The vent 505 facilitates air exchange and improves combustion efficiency. The temperature sensor 504 is installed on the outer surface of the experimental furnace cavity 502. The temperature sensor 504 can monitor the temperature above the combustion burner head 11 inside the combustion chamber 5. The material conveying opening 503 is opened on the outer surface of the experimental furnace cavity 502. The combustion burner head 11 is installed inside the experimental furnace cavity 502. The combustion burner head 11 can burn methane and other combustible gases. A material conveying device 4 is fixed on the outer surface of the experimental furnace cavity 502 and below the material conveying opening 503. The material conveying device 4 can convey materials into the experimental furnace cavity 502.

[0027] The material conveying device 4 comprises a conveying track 401, a driving motor 402, a screw rod 403, a sliding block 404, a supporting rod 405 and a combustion cage 406, the inside of the conveying track 401 is slidably provided with the sliding block 404, the side of the conveying track 401 is fixedly connected with the driving motor 402, the output end of the driving motor 402 is fixed with the screw rod 403, the screw rod 403 penetrates through the sliding block 404 and is threadedly connected with the sliding block 404, the sliding block 404 can be driven to displace when the driving motor 402 rotates, the top of the sliding block 404 is fixed with the supporting rod 405, the sliding block 404 can drive the supporting rod 405 and the combustion cage 406 to move when the sliding block 404 moves, and the end, away from the sliding block 404, of the supporting rod 405 is fixed with the combustion cage 406.

[0028] Further, the combustion furnace head 11 adopts a gas combustion mode for heating.

[0029] Further, the base 1 is internally provided with a replaceable gas tank, the gas tank is communicated with the combustion furnace head 11, and the gas tank can provide fuel for the combustion furnace head 11.

[0030] Further, the smoke exhaust hood 6 is arranged in a "horn" shape, and the "horn"-shaped smoke exhaust hood 6 facilitates the discharge of flue gas.

[0031] Further, the ventilation hole 3 on the ventilation pipe 2 is communicated with the experimental furnace cavity 502 through the air hole 505, so that the combustion inside the experimental furnace cavity 502 is more sufficient.

[0032] Further, the temperature sensor 504 is a flame temperature sensor.

[0033] Working principle: when in use, the building material to be experimented is placed on the combustion cage 406, the sliding block 404 is driven to walk along the conveying track 401 by starting the driving motor 402, the movement of the sliding block 404 can drive the supporting rod 405 and the combustion cage 406 to extend into the inside of the experimental furnace cavity 502 and stop above the combustion furnace head 11, the building material is heated and burned by the combustion furnace head 11, after sufficient heating, the material conveying opening 503 on the right of the combustion cage 406 is moved out to facilitate the observation of the experimental state of the building material to determine whether it is flammable, and effectively reduces the situation that the artificial taking-out is easy to cause scalding, the smoke generated during the combustion experiment can be discharged from the smoke exhaust pipe 7 through the rotation of the smoke exhaust hood 6 and the fan blade 9, and the pollution of the experimental environment caused by the smoke is effectively reduced.

[0034] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A building material non-combustibility testing furnace, comprising a base (1), characterized in that: A ventilation pipe (2) is fixed to the top of the base (1). A ventilation hole (3) is opened on the outer surface of the ventilation pipe (2). A combustion chamber (5) is set at the top of the ventilation pipe (2). A material conveying device (4) is set outside the combustion chamber (5). A smoke hood (6) is set above the combustion chamber (5). A smoke exhaust pipe (7) is connected to the top of the smoke hood (6). A connecting pipe (8) is connected to the top of the smoke exhaust pipe (7). A fan blade (9) is set inside the smoke hood (6). The fan blade (9) is fixed to the smoke hood (6) by a motor (10). The combustion chamber (5) includes a base plate (501), an experimental furnace cavity (502), a material conveying opening (503), a temperature sensor (504), and a vent (505). The bottom of the base plate (501) is fixedly connected to the ventilation pipe (2). A vent (505) is provided on the top of the base plate (501). A temperature sensor (504) is installed on the outer surface of the experimental furnace cavity (502). The material conveying opening (503) is opened on the outer surface of the experimental furnace cavity (502). A combustion furnace head (11) is provided inside the experimental furnace cavity (502). A material conveying device (4) is fixed on the outer surface of the experimental furnace cavity (502) and below the material conveying opening (503).

2. The building material non-combustibility testing furnace according to claim 1, characterized in that: The material conveying device (4) includes a conveying track (401), a drive motor (402), a screw (403), a slider (404), a support rod (405), and a combustion cage (406). The slider (404) is slidably arranged inside the conveying track (401). The side of the conveying track (401) is fixedly connected to the drive motor (402). The output end of the drive motor (402) is fixed to the screw (403). The screw (403) passes through the slider (404) and is threadedly connected to the slider (404). The top of the slider (404) is fixed to the support rod (405). The end of the support rod (405) away from the slider (404) is fixed to the combustion cage (406).

3. The building material non-combustibility testing furnace according to claim 1, characterized in that: The combustion burner (11) is heated by gas combustion.

4. The building material non-combustibility testing furnace according to claim 3, characterized in that: The base (1) is equipped with a replaceable gas cylinder, which is connected to the combustion burner (11).

5. The building material non-combustibility testing furnace according to claim 1, characterized in that: The smoke hood (6) is shaped like a "trumpet".

6. The building material non-combustibility testing furnace according to claim 1, characterized in that: The ventilation hole (3) on the ventilation pipe (2) is connected to the experimental furnace cavity (502) through the ventilation hole (505).

7. The building material non-combustibility testing furnace according to claim 1, characterized in that: The temperature sensor (504) is a flame temperature sensor.

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