A dust particle weighing device capable of automatic filtering

Abstract

The invention discloses a dust particle weighing device capable of automatically filtering, comprising a shell, a controller, a dust cover, an openable and closable baffle plate arranged in the shell, an electric mesh screen and an electronic induction scale, and a driving device for driving the openable and closable baffle plate to rotate; the dust cover is fixed at the top opening of the shell, a feed port is arranged on the top of the dust cover, the openable and closable baffle plate, the electric mesh screen and the electronic induction scale are sequentially distributed from top to bottom, the controller is connected to the output end of the electronic induction scale and the control end of the driving device, the weighing device can avoid the generation of secondary dust, reduce the loss during dust filtering, and can automatically realize the weighing and filtering of dust.

Description

Technical Field

[0001] The invention relates to a dust particle weighing device, in particular to a dust particle weighing device capable of automatically filtering. Background Art

[0002] Dust can be considered to be a type of particulate matter that originates from natural factors and various human activities, mainly human activities, and settles or accumulates on the surfaces of various land uses such as roads, roofs, construction sites, storage yards and bare land. Under the influence of natural forces such as wind or human factors, it re-enters the ambient air. Road dust and construction dust are the two largest parts of urban dust. They are not only one of the air pollutants that affect urban air quality, but also form haze. In recent years, the study of dust has received widespread attention. Many researchers choose the method of sweeping soil and resuspension for dust sampling.

[0003] As we all know, there is not only dust on the city roads, but also some large stones, fallen leaves, catkins, etc., and sometimes even some garbage, cigarette butts, etc. This makes the samples collected by the sampling personnel not ideal dust. In order to solve this problem, the sampling personnel will generally use sieves, filters, etc. to filter the swept things before bagging them.

[0004] To this end, we propose an automatic filtering and weighing device, which can effectively avoid the generation of secondary dust, reduce the loss during sample filtration, and simultaneously record the sample quality to save time. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a dust particle weighing device capable of automatic filtering, which can avoid the generation of secondary dust, reduce the loss during dust filtering, and can automatically weigh and filter the dust.

[0006] To achieve the above-mentioned object, the dust particle weighing device capable of automatic filtering of the present invention comprises a housing, a controller, a dust cover, an openable and closable baffle disposed in the housing, an electric mesh screen and an electronic induction scale, and a driving device for driving the openable and closable baffle to rotate;

[0007] The dust cover is fixed at the top opening of the shell. A feed port is arranged on the top of the dust cover. An openable and closable baffle, an electric mesh screen and an electronic induction scale are distributed from top to bottom. The controller is connected to the output end of the electronic induction scale and the control end of the drive device.

[0008] The shell includes an upper shell and a lower shell, wherein the electric screen includes a screen, an upper weight, a lower weight, a vibration motor and a support plate; wherein the screen and the openable and closable baffle are located in the upper shell, the support plate and the electronic induction scale are fixed in the lower shell, and the support plate is located above the electronic induction scale, the lower weight is located on the support plate, the vibration motor is located on the lower weight, the lower end of the upper weight is connected to the output shaft of the vibration motor, and the upper end of the upper weight is connected to the screen.

[0009] A screen flange is arranged on the outer periphery of the screen.

[0010] The outer wall of the shell is provided with an electronic scale switch for controlling the electronic induction scale switch, an electronic scale display screen for displaying the electronic induction scale readings, and an electronic setting screen for setting the electronic induction scale parameters.

[0011] The upper shell and the lower shell are connected via threads.

[0012] A handle is arranged on the outer wall of the shell.

[0013] The present invention has the following beneficial effects:

[0014] During the specific operation of the dust particle weighing device capable of automatic filtering described in the present invention, the controller controls the openable and closable baffle to open, and the dust is poured in from the feed port. The dust is filtered by the electric mesh screen and falls onto the electronic induction scale, and the weight of the dust is weighed in real time by the electronic induction scale. When the weight of the dust weighed by the electronic induction scale reaches the required weight, the controller controls the openable and closable baffle to close. At this time, the dust on the electronic induction scale is poured out, and the excess dust on the openable and closable baffle can be poured out at the same time, so as to realize quantitative automatic weighing and filtering of the dust. At the same time, the dust cover is used to avoid the generation of secondary dust, and the loss during dust filtration is reduced. The collection efficiency is high, the structure is simple, the cost is low, the installation is easy, and it is easy to carry, which saves manpower to a great extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the electric mesh screen 6 in the present invention.

[0017] Among them, 1 is a feed port, 2 is a dust cover, 3 is an openable baffle, 4 is a hinge, 5 is a handle, 6 is an electric mesh screen, 7 is a thread, 8 is an electronic induction scale, 9 is an electronic scale switch, 10 is an electronic scale display, 11 is an electronic setting screen, 12 is a screen flange, 13 is an upper weight, 14 is a shockproof spring, 15 is a vibration motor, 16 is a lower weight, and 17 is a support plate. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0019] refer to Figure 1 and Figure 2 The dust particle weigher capable of automatic filtering of the present invention comprises a housing, a controller, a dust cover 2, an openable and closable baffle 3, an electric mesh screen 6, an electronic induction scale 8 and a driving device for driving the openable and closable baffle 3 to rotate; the dust cover 2 is fixed at the top opening of the housing, a feed port 1 is arranged on the top of the dust cover 2, the openable and closable baffle 3, the electric mesh screen 6 and the electronic induction scale 8 are arranged in sequence from top to bottom, and the controller is connected to the output end of the electronic induction scale 8 and the control end of the driving device. In addition, an electronic scale switch 9 for controlling the switch of the electronic induction scale 8, an electronic scale display screen 10 for displaying the reading of the electronic induction scale 8 and an electronic setting screen 11 for setting the parameters of the electronic induction scale 8 are arranged on the outer wall of the housing.

[0020] The shell includes an upper shell and a lower shell, wherein the electric screen includes a screen, an upper weight 13, a lower weight 16, a vibration motor 15 and a support plate 17; wherein the screen and the openable and closable baffle 3 are located in the upper shell, the support plate 17 and the electronic induction scale 8 are fixed in the lower shell, and the support plate 17 is located above the electronic induction scale 8, the lower weight 16 is located on the support plate 17, the vibration motor 15 is located on the lower weight 16, the upper weight 13 is sleeved on the rotating shaft of the vibration motor 15, the rotating shaft is welded to the screen 6, the screen is connected to the screen flange 12 for fixing, so that the screen can vibrate freely in the screen flange 12, and the upper shell and the lower shell are connected by a thread 7; a handle 5 is provided on the outer wall of the shell, and a hinge 4 is provided between the openable and closable baffle and the inner wall of the shell.

[0021] The specific working process of the present invention is:

[0022] The weight required to be weighed by the electronic induction scale 8 is set through the electronic setting screen 11, and the controller controls the openable and closable baffle 3 to open downward, and the dust is slowly poured in from the feed port 1, and the dust cover 2 is used to prevent the dust from being blown out to avoid causing air pollution. After the dust enters the electric mesh screen 6, it is vibrated and screened. The mesh number of the electric mesh screen is 60 meshes (0.25mm), and the samples with a particle size less than 0.25mm are screened out, and then enter the electronic induction scale 8, and the weight of the dust is weighed in real time by the electronic induction scale 8. When the weight of the dust on the electronic induction scale 8 is the same as the weight required to be weighed, the controller controls the openable and closable baffle 3 to move upward and make it in a horizontal closed state. After the weighing is completed, the upper shell is separated from the lower shell, and the dust on the electronic induction scale 8 is poured out, and at the same time, the excess dust on the upper part of the openable and closable baffle 3 is poured out, so as to realize automatic quantitative weighing and filtering of the dust, which is simple and convenient to operate and has strong practicality.

[0023] In addition, it should be noted that an upper weight 13 is installed at the upper end of the vibration motor 15, and a lower weight 16 is installed at the lower end of the vibration motor 15. The rotational motion of the vibration motor 15 can be converted into horizontal, vertical and inclined three-dimensional motion, and then this motion is transmitted to the screen. In actual operation, the phase angle between the lower weight 16 and the upper weight 13 is adjusted to change the motion trajectory of the material on the screen surface, and the shock-proof spring 14 can play a role in shock absorption and stabilization of the instrument.

[0024] The above description is only the preferred specific implementation tool after multiple improvements of the present invention, allowing technicians familiar with and proficient in the technical field to make various improvements, optimizations, innovations and modifications within the protection scope of the present invention.

Claims

1. A dust particle weigher capable of automatic filtering, characterized in that: It comprises a housing, a controller, a dust cover (2), an openable and closable baffle (3) arranged in the housing, an electric mesh screen (6), an electronic induction scale (8), and a driving device for driving the openable and closable baffle (3) to rotate; The dust cover (2) is fixed to the top opening of the shell, and a feed port (1) is arranged on the top of the dust cover (2). An openable baffle (3), an electric mesh screen (6) and an electronic induction scale (8) are sequentially arranged from top to bottom, and a controller is connected to an output end of the electronic induction scale (8) and a control end of a driving device; The shell comprises an upper shell and a lower shell, wherein the electric screen comprises a screen, an upper weight (13), a lower weight (16), a vibration motor (15) and a support plate (17); wherein the screen and the openable and closable baffle (3) are located in the upper shell, the support plate (17) and the electronic induction scale (8) are fixed in the lower shell, and the support plate (17) is located above the electronic induction scale (8), the lower weight (16) is located on the support plate (17), the vibration motor (15) is located on the lower weight (16), the lower end of the upper weight (13) is connected to the output shaft of the vibration motor (15), and the upper end of the upper weight (13) is connected to the screen; An electronic scale switch (9) for controlling the switch of the electronic induction scale (8), an electronic scale display screen (10) for displaying the readings of the electronic induction scale (8), and an electronic setting screen (11) for setting parameters of the electronic induction scale (8) are arranged on the outer wall of the shell.

2. The dust particle weighing device capable of automatic filtering according to claim 1 is characterized in that: A screen flange (12) is arranged on the outer periphery of the screen.

3. The dust particle weighing device capable of automatic filtering according to claim 1 is characterized in that: The upper shell and the lower shell are connected via a thread (7).

4. The dust particle weighing device capable of automatic filtering according to claim 1 is characterized in that: A handle (5) is arranged on the outer wall of the shell.

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