Smoke treatment mechanism of test box

Abstract

The utility model discloses a smoke treatment mechanism of a test box, which relates to the technical field of smoke treatment and comprises a test box, a dust absorption and falling unit, a drying and filtering unit and a detection unit, a dust suction and falling unit is mounted at the upper end of the test box; the dust suction and dust fall unit comprises an exhaust fan, a smoke suction pipe, an air delivery pipe, a dust fall box and an air distribution plate, the exhaust fan is fixedly connected to the middle of the upper end of the test box, an air inlet of the exhaust fan is communicated with one end of the smoke suction pipe on the inner side of the test box, and an air outlet of the exhaust fan is fixedly connected with one end of the air delivery pipe; a dust falling box is fixedly connected to the middle of the lower side of the rear end of the test box, a gas distribution plate is fixedly connected to the lower end of the inner side of the dust falling box, and the other end of the gas conveying pipe penetrates through the dust falling box to be fixedly connected with a gas inlet of the gas distribution plate. And rapid and effective treatment and active filtration can be realized when a large amount of smoke is generated.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, specifically to a smoke treatment mechanism for a test chamber. Background Technology

[0002] A test chamber is a heat resistance testing device suitable for electrical insulation materials, electronic components, plastic products, etc. It assesses and judges their adaptability to storage and use under high temperature environment conditions. After aging in a simulation, the performance of the sample is measured and compared with the performance of the unaged sample. Smoke treatment devices are a type of environmental protection equipment specifically used to purify, filter or eliminate smoke, dust and harmful gases. They are widely used in industrial, fire protection, medical and daily life fields.

[0003] Among them, the prior art, authorized announcement number CN221752673U, discloses a smoke treatment mechanism and a thermal aging test chamber, including a smoke treatment chamber, an air inlet pipe fixedly installed at the bottom of the smoke treatment chamber, an air outlet pipe fixedly installed at the top of the smoke treatment chamber, and an installation groove opened in the middle of the front of the smoke treatment chamber, thus setting a convenient smoke treatment mechanism.

[0004] Existing devices only perform simple filtration of flue gas. Smaller particles in the smoke can easily pass through the simple filtration device. Existing devices cannot filter excessively small smoke particles, and their filtration efficiency is low. When a large amount of smoke is generated, they cannot be quickly and effectively processed and actively filtered. Therefore, we propose a smoke treatment mechanism for a test chamber. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a smoke treatment mechanism for a test chamber that can filter smaller smoke particles and can quickly and effectively process and actively filter large amounts of smoke, thus effectively solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a smoke treatment mechanism for a test chamber, comprising a test chamber, a dust collection and dust reduction unit, a drying and filtration unit, and a detection unit;

[0007] Test chamber: Equipped with a dust collection and dust suppression unit at the top;

[0008] Dust collection and dust suppression unit: includes an exhaust fan, a smoke extraction pipe, an air supply pipe, a dust suppression box, and an air distribution plate. The exhaust fan is fixedly connected to the upper middle part of the test chamber. The air inlet of the exhaust fan is connected to one end of the smoke extraction pipe inside the test chamber. The air outlet of the exhaust fan is fixedly connected to one end of the air supply pipe. The dust suppression box is fixedly connected to the lower middle part of the rear end of the test chamber. The air distribution plate is fixedly connected to the lower inner end of the dust suppression box. The other end of the air supply pipe passes through the dust suppression box and is fixedly connected to the air inlet of the air distribution plate. A one-way valve is provided in the middle inner part of the air supply pipe.

[0009] Drying and filtering unit: Installed on the dust collection and dust suppression unit;

[0010] Detection unit: Installed on the dust collection and dust suppression unit.

[0011] The smoke inside the test chamber is drawn into the air supply pipe through the exhaust fan of the dust collection and dust suppression unit. The horizontally arranged exhaust pipe can absorb the smoke and dust more quickly and to the maximum extent. The smoke is dispersed into the dust suppression box by the air distribution plate for initial settling. The air distribution plate divides the smoke into small bubbles, thereby increasing the contact with water and quickly filtering the particles inside the smoke.

[0012] Furthermore, the dust collection and dust suppression unit also includes a multi-way solenoid valve, atomizing nozzles, a water pump, and a water supply pipe. The upper inner side of the dust suppression box is fixedly connected to the multi-way solenoid valve, and the lower end of the multi-way solenoid valve is fixedly connected to multiple atomizing nozzles. The water pump inlet is connected to the inside of the dust suppression box via a pipe, and the water pump outlet is fixedly connected to one end of the water supply pipe. The other end of the water supply pipe passes through the dust suppression box and is fixedly connected to the inlet of the multi-way solenoid valve. The water pump supplies water to the multi-way solenoid valve through the water supply pipe, which should be equipped with a filter. The atomizing nozzles spray water mist into the dust suppression box to adsorb particulate matter. The multi-way solenoid valve precisely controls the spray area, the atomized water curtain enhances the particle adsorption effect, and the circulating water circuit design saves water resources. The water pump and the multi-way solenoid valve work together to achieve intelligent dust suppression.

[0013] Furthermore, the drying and filtering unit includes a first connecting pipe, a heating box, a drying plate, and a second connecting pipe. The heating box is fixedly connected to the upper left side of the exhaust fan. The air inlet at the lower end of the drying plate is connected to the upper end of the dust settling box via the first connecting pipe. The drying plate is slidably connected to the middle of the left end of the heating box. The air outlet of the heating box is fixedly connected to one end of the second connecting pipe. The humid air after dust settling enters the heating box through the first connecting pipe. After the drying plate absorbs the moisture, the dried gas is output through the second connecting pipe. The combined heating and drying action effectively removes the humidity from the gas. The sliding drying plate is easy to replace and maintain. The dual drying treatment ensures a safe working environment for subsequent filtering units.

[0014] Furthermore, the drying and filtration unit also includes a conical mounting shell, limiting strips, filter plates, a threaded sealing cap, a cross mounting bracket, and a conical sliding column. The other end of the connecting pipe is threaded to the inner side of the conical mounting shell. Four limiting strips are fixedly connected to the inner side of the conical mounting shell, and three filter plates are slidably connected to the inner side of the limiting strips. A cross mounting bracket is fixedly connected to the inner side of the threaded sealing cap, and a conical sliding column is fixedly connected to the inner side of the cross mounting bracket. The conical sliding column is slidably connected to the filter plates, and the threaded sealing cap is threaded to the other end of the limiting strips. The conical mounting shell fixes the replaceable filter plates through the limiting strips. The filter plates can be replaced and selected as needed, such as activated carbon filter plates. When the threaded sealing cap is closed, the conical sliding column compacts the filter plates to ensure a seal. The modular filtration structure allows for staged filtration, the conical design enhances airflow distribution, the cross mounting bracket ensures uniform sealing pressure, and the threaded connection method balances sealing performance with ease of assembly and disassembly.

[0015] Furthermore, the detection unit includes a support plate, a smoke particle detection device, a connecting pipe III, a circulation pipe, and a return pipe. The smoke particle detection device is fixedly connected to the upper right side of the dust settling box. The air inlet of the smoke particle detection device is fixedly connected to one end of the connecting pipe III, and the other end of the connecting pipe III is threadedly connected to the outer side of the threaded sealing cap. The support plate is fixedly connected to the upper end of the dust settling box, and the connecting pipe III is fixedly connected to the upper end of the support plate. The first air outlet of the smoke particle detection device is fixedly connected to one end of the return pipe, and the other end of the return pipe is connected to the gas supply pipe. A one-way solenoid valve is installed inside the return pipe. The second air outlet of the smoke particle detection device is fixedly connected to one end of the circulation pipe. The other end of the conical mounting shell is fixedly connected to the right end of the test chamber. The smoke particle detection device collects processed gas samples through the connecting pipe III. Gas that meets the standards is discharged into the test chamber, while gas that does not meet the standards returns to the gas supply pipe via the return pipe for further processing. Real-time monitoring ensures the processing quality. The circulation pipe and the return pipe form a quality feedback system, and the one-way solenoid valve prevents gas backflow.

[0016] Furthermore, it also includes an inlet pipe and an outlet pipe. The inlet pipe is fixedly connected to the upper right side of the dust settling box, and the outlet pipe is fixedly connected to the lower left side of the dust settling box. The inlet pipe maintains the water level in the dust settling box, and the treated wastewater is centrally discharged through the outlet pipe. The dual-pipe design achieves dynamic water level balance. The inlet pipe ensures continuous water supply for dust settling, and the outlet pipe facilitates the cleaning of sediment, ensuring the long-term stable operation of the dust settling box.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The smoke treatment mechanism of this test chamber has the following advantages:

[0018] 1. The smoke treatment mechanism of this test chamber divides the flue gas into fine bubbles through a gas distribution plate, thereby increasing the contact with water and quickly filtering the particles inside the flue gas. The atomizing nozzle sprays water mist into the dust settling chamber to adsorb particulate matter. Multi-way solenoid valves precisely control the spray area, and the atomized water curtain enhances the particle adsorption effect, enabling the filtration of smaller flue gas particles. At the same time, the conical mounting shell of the drying filter unit fixes the replaceable filter plate with a limiting strip. The filter plate can be replaced and selected as needed, such as activated carbon filter plate, and the filter screen can be replaced according to the particle size of the smoke.

[0019] 2. The smoke treatment mechanism of this test chamber: The smoke inside the test chamber is drawn into the air supply pipe through the exhaust fan of the dust collection and dust suppression unit. The horizontally arranged exhaust pipe can absorb the smoke and dust more quickly and to the maximum extent. The smoke is dispersed into the dust settling box through the air distribution plate for preliminary settling. The air distribution plate divides the smoke into small bubbles, thereby increasing the contact with water and quickly filtering the particles inside the smoke. It can quickly and effectively handle and actively filter large amounts of smoke. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0022] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0023] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0024] In the diagram: 1 Test chamber, 2 Water inlet pipe, 3 Dust collection and dust suppression unit, 31 Exhaust fan, 32 Smoke pipe, 33 Air supply pipe, 34 Dust suppression box, 35 Air distribution plate, 36 Multi-way solenoid valve, 37 Atomizing nozzle, 38 Water pump, 39 Water supply pipe, 4 Drying and filtering unit, 41 Connecting pipe one, 42 Heating box, 43 Drying plate, 44 Connecting pipe two, 45 Conical mounting shell, 46 Limiting strip, 47 Filter plate, 48 Threaded sealing cap, 49 Cross mounting bracket, 410 Conical sliding column, 5 Detection unit, 51 Support plate, 52 Smoke particle detection device, 53 Connecting pipe three, 54 Circulation pipe, 55 Return pipe, 6 Water outlet pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This embodiment provides a technical solution: a smoke treatment mechanism for a test chamber, including a test chamber 1, a dust collection and dust reduction unit 3, a drying and filtering unit 4, and a detection unit 5;

[0027] Test chamber 1: The upper end is equipped with a dust collection and dust suppression unit 3;

[0028] Dust collection and dust suppression unit 3: includes an exhaust fan 31, a smoke extraction pipe 32, an air supply pipe 33, a dust suppression box 34, and an air distribution plate 35. The exhaust fan 31 is fixedly connected to the upper middle part of the test chamber 1. The air inlet of the exhaust fan 31 is connected to one end of the smoke extraction pipe 32 inside the test chamber 1, and the air outlet of the exhaust fan 31 is fixedly connected to one end of the air supply pipe 33. The dust suppression box 34 is fixedly connected to the lower middle part of the rear end of the test chamber 1. The air distribution plate 35 is fixedly connected to the lower inner end of the dust suppression box 34. The other end of the air supply pipe 33 passes through the dust suppression box 34. 4 is fixedly connected to the air inlet of the air distribution plate 35, and a one-way valve is provided in the middle of the inner side of the air supply pipe 33; the smoke inside the test chamber 1 is drawn into the air supply pipe 33 through the exhaust fan 31 of the dust collection and dust settling unit 3 via the smoke extraction pipe 32. The horizontal arrangement of the smoke extraction pipe 32 can absorb the smoke and dust more quickly and to the maximum extent. The smoke is dispersed into the dust settling box 34 through the air distribution plate 35 for preliminary settling. The smoke is divided into small bubbles by the air distribution plate 35, thereby increasing the contact with water and quickly filtering the particles inside the smoke.

[0029] The dust collection and dust suppression unit 3 also includes a multi-way solenoid valve 36, atomizing nozzles 37, a water pump 38, and a water supply pipe 39. The multi-way solenoid valve 36 is fixedly connected to the upper inner side of the dust suppression box 34, and multiple atomizing nozzles 37 are fixedly connected to the lower end of the multi-way solenoid valve 36. The inlet of the water pump 38 is connected to the inside of the dust suppression box 34 via a pipe, and the outlet of the water pump 38 is fixedly connected to one end of the water supply pipe 39. The other end of the water supply pipe 39 passes through the dust suppression box 34 and is fixedly connected to the inlet of the multi-way solenoid valve 36. The water pump 38 supplies water to the multi-way solenoid valve 36 through the water supply pipe 39. A filter device should be installed inside the water supply pipe. The atomizing nozzles 37 spray water mist into the dust suppression box 34 to adsorb particulate matter. The multi-way solenoid valve 36 precisely controls the spray area, and the atomized water curtain enhances the particle adsorption effect. The circulating water circuit design saves water resources. The water pump 38 and the multi-way solenoid valve 36 work together to achieve intelligent dust suppression.

[0030] Drying and filtering unit 4: Installed on the dust collection and dust suppression unit 3; the drying and filtering unit 4 includes connecting pipe 1 41, heating box 42, drying plate 43, and connecting pipe 2 44. The heating box 42 is fixedly connected to the upper left side of the exhaust fan 31. The air inlet at the lower end of the drying plate 43 is connected to the upper end of the dust suppression box 34 through connecting pipe 1 41. The drying plate 43 is slidably connected to the middle of the left end of the heating box 42. The air outlet of the heating box 42 is fixedly connected to one end of connecting pipe 2 44. The humid air after dust suppression enters the heating box 42 through connecting pipe 1 41. After the drying plate 43 absorbs the moisture, the dry gas is output through connecting pipe 2 44. The combined heating and drying action effectively removes the humidity from the gas. The sliding drying plate 43 is easy to replace and maintain. The dual drying treatment ensures the working environment of the subsequent filtering unit 4.

[0031] The drying and filtering unit 4 also includes a conical mounting shell 45, limiting strips 46, filter plates 47, threaded sealing caps 48, cross mounting brackets 49, and conical sliding columns 410. The other end of the connecting pipe 44 is threaded to the inner side of the conical mounting shell 45. Four limiting strips 46 are fixedly connected to the inner side of the conical mounting shell 45. Three filter plates 47 are slidably connected to the inner side of the limiting strips 46. The cross mounting bracket 49 is fixedly connected to the inner side of the threaded sealing cap 48. The conical sliding column 410 is fixedly connected to the inner side of the cross mounting bracket 49. The conical sliding column 410 is slidably connected to the filter plates 47. The threaded sealing cap 48 is threaded to the other end of the limiting strips 46. The conical mounting shell 45 secures the replaceable filter plate 47 via the limiting strip 46. The filter plate 47 can be replaced and selected as needed, such as an activated carbon filter plate. When the threaded sealing cover 48 is closed, the conical sliding column 410 compacts the filter plate 47 to ensure a seal. The modular filter structure allows for graded filtration, the conical design enhances airflow distribution, the cross mounting bracket 49 ensures uniform sealing pressure, and the threaded connection method balances sealing performance with ease of assembly and disassembly.

[0032] Detection Unit 5: Installed on the dust collection and dust suppression unit 3, the detection unit 5 includes a support plate 51, a smoke particle detection device 52, a connecting pipe 53, a circulation pipe 54, and a return pipe 55. The smoke particle detection device 52 is fixedly connected to the upper right side of the dust suppression box 34. The air inlet of the smoke particle detection device 52 is fixedly connected to one end of the connecting pipe 53, and the other end of the connecting pipe 53 is threadedly connected to the outer side of the threaded sealing cap 48. The support plate 51 is fixedly connected to the upper end of the dust suppression box 34, and the connecting pipe 53 is fixedly connected to the upper end of the support plate 51. The first air outlet of the smoke particle detection device 52 is fixedly connected to one end of the return pipe 55, and the other end of the return pipe 55 is connected to the air supply pipe 33. A one-way solenoid valve is provided inside the return pipe 55. The second air outlet of the smoke particle detection device 52 is fixedly connected to one end of the circulation pipe 54, and the other end of the conical mounting shell 45 is fixedly connected to the right end of the test chamber 1. The smoke particle detection device 52 collects the processed gas sample through the connecting pipe 53. The qualified gas is discharged into the test chamber 1, and the unqualified gas is returned to the gas supply pipe 33 for reprocessing through the return pipe 55. Real-time monitoring ensures the processing quality. The circulation pipe 54 and the return pipe 55 form a quality feedback system. The one-way solenoid valve prevents gas backflow.

[0033] It also includes an inlet pipe 2 and an outlet pipe 6. The inlet pipe 2 is fixedly connected to the upper right side of the dust settling box 34, and the outlet pipe 6 is fixedly connected to the lower left side of the dust settling box 34. The inlet pipe 2 maintains the water level in the dust settling box 34, and the treated wastewater is discharged centrally through the outlet pipe 6. The dual-pipe design achieves dynamic water level balance. The inlet pipe 2 ensures continuous water supply for dust settling, and the outlet pipe 6 facilitates the cleaning of sediment, ensuring the long-term stable operation of the dust settling box 34.

[0034] The working principle of the smoke treatment mechanism of the test chamber provided by this utility model is as follows: The smoke in the test chamber 1 is drawn by the exhaust fan 31 of the dust collection and dust reduction unit 3 through the smoke extraction pipe 32, and transported to the dust reduction box 34 through the air supply pipe 33. After being dispersed by the air distribution plate 35, the smoke is sprayed again by the atomizing nozzle 37 controlled by the multi-way solenoid valve 36 to adsorb particulate matter. The gas after dust reduction enters the drying and filtration unit 4 through the connecting pipe 41. After being heated and dehumidified by the heating box 42 and absorbed by the drying plate 43, it is filtered in stages by the multi-layer filter plate 47 in the conical mounting shell 45. The detection unit 5 monitors the gas quality through the smoke particle detection device 52. The gas that does not meet the standard is returned to the air supply pipe 33 for recycling through the return pipe 55, and the gas that meets the standard is returned to the test chamber 1 through the circulation pipe 54. The water pump 38 supplies water to the atomizing nozzle 37 through the water supply pipe 39. The water inlet pipe 2 and the water outlet pipe 6 maintain the water level balance in the dust reduction box 34. The smoke purification closed loop is realized by the linkage of the pipelines of each unit.

[0035] It is worth noting that the input terminals of the exhaust fan 31, water pump 38 and multi-way solenoid valve 36 disclosed in the above embodiments are electrically connected to the output terminal of an external power supply through an external PLC controller. The external PLC controller controls the operation of the exhaust fan 31, water pump 38 and multi-way solenoid valve 36 using methods commonly used in the prior art.

[0036] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A smoke treatment mechanism for a test chamber, characterized in that: It includes a test chamber (1), a dust collection and dust reduction unit (3), a drying and filtration unit (4), and a testing unit (5); Test chamber (1): The upper end is equipped with a dust collection and dust suppression unit (3); Dust collection and dust suppression unit (3): includes a blower (31), a smoke pipe (32), an air supply pipe (33), a dust suppression box (34), and an air distribution plate (35). The blower (31) is fixedly connected to the middle of the upper end of the test chamber (1). The air inlet of the blower (31) is connected to one end of the smoke pipe (32) inside the test chamber (1). The air outlet of the blower (31) is fixedly connected to one end of the air supply pipe (33). The dust suppression box (34) is fixedly connected to the middle of the lower rear end of the test chamber (1). The air distribution plate (35) is fixedly connected to the lower inner side of the dust suppression box (34). The other end of the air supply pipe (33) passes through the dust suppression box (34) and is fixedly connected to the air inlet of the air distribution plate (35). A one-way valve is provided in the middle of the inner side of the air supply pipe (33). Drying and filtering unit (4): installed on the dust collection and dust suppression unit (3); Detection unit (5): Installed on the dust collection and dust suppression unit (3).

2. The smoke treatment mechanism for a test chamber according to claim 1, characterized in that: The dust collection and dust suppression unit (3) also includes a multi-way solenoid valve (36), an atomizing nozzle (37), a water pump (38), and a water supply pipe (39). The upper inner side of the dust suppression box (34) is fixedly connected to the multi-way solenoid valve (36), and the lower end of the multi-way solenoid valve (36) is fixedly connected to multiple atomizing nozzles (37). The inlet of the water pump (38) is connected to the inner side of the dust suppression box (34) through a pipe. The outlet of the water pump (38) is fixedly connected to one end of the water supply pipe (39), and the other end of the water supply pipe (39) passes through the dust suppression box (34) and is fixedly connected to the inlet of the multi-way solenoid valve (36).

3. The smoke treatment mechanism for a test chamber according to claim 1, characterized in that: The drying and filtering unit (4) includes a connecting pipe one (41), a heating box (42), a drying plate (43) and a connecting pipe two (44). The heating box (42) is fixedly connected to the upper left side of the exhaust fan (31). The air inlet at the lower end of the drying plate (43) is connected to the upper end of the dust settling box (34) through the connecting pipe one (41). The drying plate (43) is slidably connected to the middle of the left end of the heating box (42). The air outlet of the heating box (42) is fixedly connected to one end of the connecting pipe two (44).

4. The smoke treatment mechanism for a test chamber according to claim 3, characterized in that: The drying and filtering unit (4) further includes a conical mounting shell (45), a limiting strip (46), a filter plate (47), a threaded sealing cap (48), a cross mounting bracket (49), and a conical sliding column (410). The other end of the connecting pipe (44) is threadedly connected to the inner side of the conical mounting shell (45). Four limiting strips (46) are fixedly connected to the inner side of the conical mounting shell (45). Three filter plates (47) are slidably connected to the inner side of the limiting strips (46). A cross mounting bracket (49) is fixedly connected to the inner side of the threaded sealing cap (48). A conical sliding column (410) is fixedly connected to the inner side of the cross mounting bracket (49). The conical sliding column (410) is slidably connected to the filter plate (47). The threaded sealing cap (48) is threadedly connected to the other end of the limiting strip (46).

5. The smoke treatment mechanism for a test chamber according to claim 4, characterized in that: The detection unit (5) includes a support plate (51), a smoke particle detection device (52), a connecting pipe (53), a circulation pipe (54), and a return pipe (55). The smoke particle detection device (52) is fixedly connected to the upper right side of the dust settling box (34). The air inlet of the smoke particle detection device (52) is fixedly connected to one end of the connecting pipe (53), and the other end of the connecting pipe (53) is threaded to the outer side of the threaded sealing cap (48). The support plate is fixedly connected to the upper end of the dust settling box (34). (51) A connecting pipe (53) is fixedly connected to the upper end of the support plate (51). The first outlet of the smoke particle detection device (52) is fixedly connected to one end of the return pipe (55). The other end of the return pipe (55) is connected to the gas supply pipe (33). A one-way solenoid valve is provided inside the return pipe (55). The second outlet of the smoke particle detection device (52) is fixedly connected to one end of the circulation pipe (54). The other end of the conical mounting shell (45) is fixedly connected to the right end of the test chamber (1).

6. The smoke treatment mechanism of a test chamber according to claim 1, characterized in that: It also includes an inlet pipe (2) and an outlet pipe (6). The inlet pipe (2) is fixedly connected to the upper right side of the dust settling box (34), and the outlet pipe (6) is fixedly connected to the lower left side of the dust settling box (34).

Images