Dust outlet cavity of dust simulation chamber

Abstract

The utility model discloses a dust outlet cavity of a dust simulation chamber, which comprises a simulation chamber, one side of the simulation chamber is provided with a plurality of dust outlet cavity bodies, the top of the simulation chamber is provided with a screw conveyer through a translation assembly, the outlet end of the bottom of the screw conveyer is provided with a dust outlet pipe, and a lifting pipe is arranged in a round opening in the top of each dust outlet cavity body in an up-and-down sliding manner. And a pipe opening in the top of the lifting pipe can be attached to a pipe opening in the bottom of the dust outlet pipe by ascending. According to the utility model, a plurality of dust outlet cavities are designed, and each dust outlet cavity is provided with a lifting pipe capable of automatically lifting and a translation assembly capable of driving the screw conveyor to move, so that the dust outlet cavities can be adjusted when the concentration needs to be adjusted after one simulation experiment is completed; the dust concentration in the simulation chamber can be quickly adjusted only by driving the spiral conveyor to move and be in butt joint with the lifting pipe at the top of the next dust outlet cavity, the filter plate does not need to be disassembled and reinstalled, the dust concentration in the simulation chamber can be quickly adjusted, the working efficiency is effectively improved, and the use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of dust simulation, in particular to an air outlet cavity of a dust simulation chamber. Background Technique

[0002] A dust simulation chamber, namely a dust temperature and humidity environment simulation laboratory, is mainly used to simulate a dust environment and conduct relevant research or experiments. Such laboratory equipment is usually used to test the characteristics of dust under different environmental conditions, such as the diffusion, sedimentation, and concentration change of dust.

[0003] In order to adjust the high and low concentration of dust inside the dust simulation chamber, most existing dust simulation chambers install filters inside the dust removal cavity. For example, Chinese Patent Publication No. CN218546460U discloses a dust generation device of a dust environment simulation device. When the dust is discharged, it can first pass through the filter screen

[0004] Flowing out from the discharge pipe can delay its discharge speed, thereby reducing the dust concentration inside the dust simulation chamber. Filter plates can be installed according to the usage situation, thereby adjusting the high and low concentration of dust inside the dust simulation chamber.

[0005] However, this solution has certain deficiencies. Most traditional air outlet cavities are single-designed. When different dust concentrations are required in the simulation chamber, it is necessary to replace the filter screens on each air outlet cavity one by one first, and then conduct the next test. This is rather time-consuming and cannot conduct dust simulation experiments with different concentrations coherently, thus unable to meet the usage requirements.

[0006] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and an air outlet cavity of a dust simulation chamber is proposed. Summary of the Invention

[0007] The purpose of the utility model is to provide an air outlet cavity of a dust simulation chamber. By designing multiple groups of air outlet cavities that can be quickly switched and used, the problem proposed in the above background technique is solved, that is, most traditional air outlet cavities are single-designed. When different concentrations are required, it is necessary to replace the filter screen first and then conduct the next test. This is rather time-consuming and cannot conduct dust simulation experiments with different concentrations coherently, and cannot meet the usage requirements.

[0008] To achieve the above object, the present utility model provides the following technical solutions: It includes a simulation chamber, on one side of the simulation chamber, several dust outlet cavities are installed. On the top of the simulation chamber, a screw conveyor is installed through a translation component. At the bottom outlet end of the screw conveyor, a dust outlet pipe is installed. Inside the circular opening at the top of the dust outlet cavity, a lifting pipe slides up and down and is electrically lifted and connected. The top pipe orifice of the lifting pipe can be fitted with the bottom pipe orifice of the dust outlet pipe by rising. Inside the inner wall of the dust outlet cavity, three filter plates are installed. The translation component is used to drive the horizontal displacement of the screw conveyor, and the mesh aperture of the filter screen of the filter plate inside each dust outlet cavity is different.

[0009] Preferably, the translation component includes a slideway and a lead screw. The slideway is fixed on the top of the simulation chamber and there are two places. Two sliders at the bottom of the screw conveyor slide in the slideway. The lead screw is rotatably connected to the support plate on the top of the simulation chamber, and the lead screw is driven to rotate by a motor installed on one side of a support plate. The lead screw is threadedly connected to the convex block at the bottom of the screw conveyor.

[0010] Preferably, the diameter of the lifting pipe is the same as that of the dust outlet pipe, and a sealing gasket is bonded to the top surface of the lifting pipe.

[0011] Preferably, an electric valve is installed at the position of the lifting pipe at the upper end of the dust outlet cavity. The electric valve is set to automatically open when the lifting pipe rises, and the electric valve automatically closes when the lifting pipe resets.

[0012] Preferably, two electric push rods are connected between the frame plate fixed to the outside of the lifting pipe and the top of the dust outlet cavity, and the two electric push rods are symmetrically distributed with respect to the lifting pipe.

[0013] Preferably, the filter plate is inserted from the opening on one side of the dust outlet cavity. The dust outlet cavity is provided with a limiting component on the insertion surface of the three filter plates. The limiting component includes a U-shaped plate rotatably connected to one side of the dust outlet cavity. The U-shaped plate fits against the outer wall of the filter plate, and both sides of the U-shaped plate are in contact with the square blocks fixed to the outer wall of the dust outlet cavity by rotation. A stopper is rotatably connected to the outer wall of the square block.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By designing multiple dust outlet cavities in the present utility model, and on each dust outlet cavity, a lifting pipe that can be automatically lifted is designed, as well as a translation component that can drive the displacement of the screw conveyor. When it is necessary to adjust the concentration after a simulation experiment is completed, only by driving the displacement of the screw conveyor to dock with the lifting pipe at the top of the next dust outlet cavity, it is not necessary to remove the filter plate and reinstall it. Thus, the dust concentration inside the simulation chamber can be quickly adjusted, effectively improving the work efficiency and meeting the use requirements.

[0016] 2. Through the design of the limiting component of the present utility model, after three filter plates are installed in each dust outlet cavity, the U-shaped plate is rotated upward to be vertical to limit the filter plate, and then the stopper on the square block is rotated. The stopper fits against the outer wall of the U-shaped plate to limit it, making the filter plate very stable. In this way, both limiting and removal are very fast, improving the disassembly and assembly efficiency and solving the deficiency of individual fixation in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an overall three-dimensional structural schematic diagram of the dust outlet cavity of a dust simulation chamber of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the cross-section of the dust outlet cavity of a dust simulation chamber of the present utility model;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the limiting component of the dust outlet cavity of a dust simulation chamber of the present utility model;

[0020] Figure 4 is for the dust outlet cavity of a dust simulation chamber of the present utility model Figure 1 and is an enlarged structural schematic diagram at position A therein;

[0021] Figure 5 is a three-dimensional structural schematic diagram of the cross-section of the lifting pipe of the dust outlet cavity of a dust simulation chamber of the present utility model;

[0022] Figure 6 is a three-dimensional structural schematic diagram of the translation component of the dust outlet cavity of a dust simulation chamber of the present utility model

[0023] In the figure: 1, simulation chamber; 2, dust outlet cavity; 3, screw conveyor; 4, translation component; 41, slideway; 42, lead screw; 43, motor; 5, lifting pipe; 6, dust outlet pipe; 7, filter plate; 8, limiting component; 81, U-shaped plate; 82, square block; 83, stopper; 9, electric push rod; 10, electric valve; 11, frame plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] As Figures 1-6As shown in the figure, it includes a simulation chamber 1. A number of dust outlet cavities 2 are installed on one side of the simulation chamber 1. A screw conveyor 3 is installed on the top of the simulation chamber 1 through a translation assembly 4. A dust outlet pipe 6 is installed at the bottom outlet end of the screw conveyor 3. A lifting pipe 5 slides up and down in the round opening at the top of the dust outlet cavity 2 and forms an electric lifting connection. The top pipe orifice of the lifting pipe 5 can be fitted with the bottom pipe orifice of the dust outlet pipe 6 by rising. Three filter plates 7 are installed on the inner wall of the dust outlet cavity 2, and the filter screen pore diameters of the filter plates 7 inside each dust outlet cavity 2 are different. The translation assembly 4 is used to drive the horizontal displacement of the screw conveyor 3.

[0026] By designing multiple dust outlet cavities 2, and on each dust outlet cavity 2, a lifting pipe 5 that can be automatically lifted and lowered is designed, as well as a translation assembly 4 that can drive the displacement of the screw conveyor 3. During the simulation experiment, three filter plates 7 are installed inside each dust outlet cavity 2, and the filter screen pore diameters of the filter plates 7 inside each dust outlet cavity 2 are different. Then, the translation assembly 4 is used to drive the displacement of the screw conveyor 3 so that the dust outlet pipe 6 corresponds to the lifting pipe 5 on one of the dust outlet cavities 2. After that, the lifting pipe 5 is controlled to move up to fit with the bottom pipe orifice of the dust outlet pipe 6. Then, dust is added through the top bin of the screw conveyor 3, conveyed by the screw conveyor 3, and then introduced into the dust outlet cavity 2 through the lifting pipe 5 and the dust outlet pipe 6. Finally, the discharge speed of the dust outlet cavity 2 is slowed down by the filter plate 7 and enters the simulation chamber 1. When the concentration needs to be adjusted, only by driving the screw conveyor 3 to displace and docking with the lifting pipe 5 at the top of the next dust outlet cavity 2, there is no need to remove the filter plate 7 and reinstall it. Thus, the dust concentration inside the simulation chamber 1 can be quickly adjusted, effectively improving the work efficiency and meeting the use requirements.

[0027] The translation assembly 4 includes a slideway 41 and a lead screw 42. The slideway 41 is fixed on the top of the simulation chamber 1 and there are two of them. Two sliders at the bottom of the screw conveyor 3 slide in the slideway 41. The lead screw 42 is rotatably connected to the support plate on the top of the simulation chamber 1, and the lead screw 42 is driven to rotate by a motor 43 installed on one side of a support plate. The lead screw 42 is threadedly connected to the convex block at the bottom of the screw conveyor 3;

[0028] Specifically, through the design of the translation assembly 4, when driving the translation of the screw conveyor 3, the lead screw 42 is driven to rotate by the motor 43. Since the two sliders of the screw conveyor 3 slide in the slideway 41, the lead screw 42 can drive the stable displacement of the screw conveyor 3, thus facilitating the docking with the lifting pipe 5 at the top of different dust outlet cavities 2, which is very practical.

[0029] The diameter of the lifting pipe 5 is the same as that of the dust outlet pipe 6. A sealing gasket 12 is adhesively bonded to the top surface of the lifting pipe 5. Two electric push rods 9 are connected between the frame plate 11 fixed to the outside of the lifting pipe 5 and the top of the dust outlet cavity 2, and the two electric push rods 9 are symmetrically distributed with respect to the lifting pipe 5. An electric valve 10 is installed at the position where the lifting pipe 5 is located at the upper end of the dust outlet cavity 2. The electric valve 10 is set to automatically open when the lifting pipe 5 rises, and the electric valve 10 automatically closes when the lifting pipe 5 resets.

[0030] Specifically, by designing the same diameter of the lifting pipe 5 and the dust outlet pipe 6, and the sealing gasket 12, the connection between the lifting pipe 5 and the dust outlet pipe 6 is made closer, avoiding dust leakage, and thus enhancing the stability of the experiment. Through the electric push rods 9, an electric lifting structure is formed between the lifting pipe 5 and the dust outlet cavity 2, enabling the lifting pipe 5 to move up and down stably, facilitating the connection between the lifting pipe 5 and the dust outlet pipe 6. Finally, the electric valve 10 prevents dust from entering the inside of the dust outlet cavity 2 when not in use, and automatically opens and closes in cooperation with the dust guiding design, which is very intelligent and practical. It should be noted that the automatic closing operation of the electric valve 10 is an existing design method, and its detailed principle will not be elaborated.

[0031] Three filter plates 7 are inserted through an opening on one side of the dust outlet cavity 2. A limiting component 8 is installed on the insertion surface of the three filter plates 7 in the dust outlet cavity 2. The limiting component 8 includes a U-shaped plate 81 rotatably connected to one side of the dust outlet cavity 2. The U-shaped plate 81 is in contact with the outer wall of the filter plate 7, and both sides of the U-shaped plate 81 are in contact with a square block 82 fixedly connected to the outer wall of the dust outlet cavity 2 through rotation. A stopper 83 is rotatably connected to the outer wall of the square block 82.

[0032] Specifically, through the design of the limiting component 8, after the three filter plates 7 are installed in each dust outlet cavity 2, the U-shaped plate 81 is rotated upwards to be vertical to limit the filter plate 7, and then the stopper 83 on the square block 82 is rotated so that the stopper 83 is in contact with the outer wall of the U-shaped plate 81 to limit it, making the filter plate 7 very stable. In this way, the limiting and removal are both very fast, improving the disassembly and assembly efficiency.

[0033] Working principle: When the dust outlet cavity of the dust simulation chamber is in use, three filter plates 7 are installed inside each dust outlet cavity 2, and the filter mesh apertures of the filter plates 7 inside each dust outlet cavity 2 are different. Then, the U-shaped plate 81 is rotated upward to be vertical to limit the filter plate 7. Next, the stopper 83 on the square block 82 is rotated, and the stopper 83 fits against the outer wall of the U-shaped plate 81 to limit it. Then, the screw rod 42 is driven to rotate by the motor 43, and the screw rod 42 can drive the screw conveyor 3 to stably displace, so that the dust outlet pipe 6 corresponds to the lifting pipe 5 on one dust outlet cavity 2. After that, through the electric push rod 9, the lifting pipe 5 is lifted to fit against the bottom pipe orifice of the dust outlet pipe 6. Then, dust is added through the top bin of the screw conveyor 3, conveyed by the screw conveyor 3, and then introduced into the dust outlet cavity 2 through the lifting pipe 5 and the dust outlet pipe 6. Finally, the speed of the material discharged from the dust outlet cavity 2 is slowed down by the filter plate 7 and enters the simulation chamber 1. When the concentration needs to be adjusted, it only needs to drive the screw conveyor 3 to displace and dock with the lifting pipe 5 at the top of the next dust outlet cavity 2.

[0034] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A dust outlet chamber of a dust simulation chamber, comprising a simulation chamber (1), characterized in that: A plurality of dust outlet chambers (2) are installed on one side of the simulation chamber (1); a screw conveyor (3) is installed on the top of the simulation chamber (1) via a translation assembly (4); a dust outlet pipe (6) is installed at the bottom outlet end of the screw conveyor (3); a lifting pipe (5) is slid up and down in the circular opening at the top of the dust outlet chamber (2) to form an electric lifting connection; the top pipe opening of the lifting pipe (5) can be fitted with the bottom pipe opening of the dust outlet pipe (6) by rising; three filter plates (7) are installed on the inner wall of the dust outlet chamber (2), and the filter screen apertures of the filter plates (7) inside each dust outlet chamber (2) are different; The translation assembly (4) is used to drive the screw conveyor (3) to move horizontally.

2. The dust outlet chamber of a dust simulation chamber according to claim 1, characterized in that: The translation assembly (4) comprises a slideway (41) and a screw rod (42); the slideway (41) is fixed to the top of the simulation chamber (1) and is provided at two locations; two sliders at the bottom of the screw conveyor (3) slide in the slideway (41); the screw rod (42) is rotatably connected to a support plate at the top of the simulation chamber (1); the screw rod (42) is driven to rotate by a motor (43) installed on one side of the support plate; and the screw rod (42) is threadedly connected to a protrusion at the bottom of the screw conveyor (3).

3. The dust outlet chamber of a dust simulation chamber according to claim 1, characterized in that: The diameter of the lifting pipe (5) is the same as the diameter of the dust outlet pipe (6), and a circle of sealing gasket (12) is bonded to the top surface of the lifting pipe (5).

4. The dust outlet chamber of a dust simulation chamber according to claim 1, characterized in that: An electric valve (10) is installed at a position of the lifting tube (5) located at the upper end of the dust outlet chamber (2); the electric valve (10) is set to automatically open when the lifting tube (5) rises, and the electric valve (10) is automatically closed when the lifting tube (5) is reset.

5. The dust outlet chamber of a dust simulation chamber according to claim 1, characterized in that: The frame plate (11) fixed outside the lifting tube (5) is connected to the top of the dust outlet chamber (2) and has two electric push rods (9), and the two electric push rods (9) are symmetrically distributed with respect to the lifting tube (5).

6. The dust outlet chamber of a dust simulation chamber according to claim 1, characterized in that: The three filter plates (7) are inserted from an opening on one side of the dust outlet chamber (2); a limit assembly (8) is installed on the insertion surface of the three filter plates (7) of the dust outlet chamber (2); the limit assembly (8) comprises a U-shaped plate (81) rotatably connected to one side of the dust outlet chamber (2); the U-shaped plate (81) is fitted with an outer wall of the filter plate (7); and both sides of the U-shaped plate (81) are fitted with a block (82) fixed to the outer wall of the dust outlet chamber (2) by rotation; and a stopper (83) is rotatably connected to the outer wall of the block (82).

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