Particulate matter generating device

Abstract

The utility model provides a particulate matter generating device which comprises a mixing box, the mixing box is provided with a first feed port and a first discharge port, and the first discharge port is connected with a discharge pipe; the feeding device comprises a machine shell and a driving motor, a spiral shaft is rotationally arranged in the machine shell, spiral blades are spirally arranged on the spiral shaft in the axial direction of the spiral shaft, the driving motor is used for driving the spiral shaft to rotate, a second feeding port and a second discharging port are formed in the machine shell, and the second feeding port is communicated with the second discharging port. The second material outlet is communicated with the first material inlet; the rotating speed controller is connected with the driving motor, and the rotating speed controller is used for controlling the rotating speed of the driving motor; and the mixing box is also provided with an air inlet, and the fan is connected with the air inlet. And dust with different concentrations can be simulated and generated, so that the debugging and detection precision of the online particulate matter detection equipment can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust particle concentration detection technical field, especially a particle matter generating device. BACKGROUND

[0002] At present, since the dust particle treatment process mostly adopts the bag type dust collector mode, the dust particle concentration of the dust emission source discharged after the bag type dust collector process is basically unchanged, therefore, when the online particle matter detection equipment is debugged and detected in the related technical indexes, the discharged particle matter concentration cannot be adjusted, the online particle matter detection equipment is detected and debugged under the high, medium and low different particle matter emission concentrations, and the detection precision of the online particle matter detection equipment is low. SUMMARY

[0003] In view of the above-mentioned defects of the prior art, the utility model aims at providing a particle matter generating device to solve the problems in the prior art.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a particle matter generating device, which comprises a mixing box, a first feeding port and a first discharging port are arranged on the mixing box, a discharging pipe is connected to the first discharging port, a feeding device comprises a shell and a driving motor, a spiral shaft is rotatably arranged in the shell, spiral blades are spirally arranged on the spiral shaft along the axial direction of the spiral shaft, the driving motor is used for driving the spiral shaft to rotate, a second feeding port and a second discharging port are arranged on the shell, and the second discharging port is communicated with the first feeding port, a rotating speed controller is connected with the driving motor, and the rotating speed controller is used for controlling the rotating speed of the driving motor, and a fan is further arranged on the mixing box and connected with the air inlet.

[0005] Further, the first end of the spiral shaft is rotatably arranged at the first end of the shell through a bearing, the second end of the shell is provided with an opening to form the second discharging port, the second end of the shell is embedded in the first feeding port, and the second end of the spiral shaft extends to the second end of the shell.

[0006] Further, a feeding funnel is arranged on the second feeding port.

[0007] Further, the fan is connected with the air inlet through a air supply pipe.

[0008] Further, the rotating speed controller is a frequency converter.

[0009] Further, an inner part of the mixing box is provided with a partition plate, the partition plate divides the mixing box into a first chamber and a second chamber, and the first chamber and the second chamber are communicated, the first feeding port is arranged on the first chamber, the first discharging port is arranged on the second chamber, and the air inlet is arranged at the bottom of the first chamber.

[0010] As described above, the particulate matter generating device has the following beneficial effects: when the online particulate matter detection equipment needs to be debugged and detected, the discharging pipe on the mixing box is connected with the discharging flue of the original dust discharging source, the dust material is filled and added into the casing through the second feeding port on the casing, the driving motor drives the rotating shaft to rotate, and then the dust material is input into the mixing box from the second discharging port on the casing, and then the dust material input into the mixing box is blown up and scattered by the fan and discharged into the discharging flue through the discharging pipe to change the dust concentration in the discharging flue, when detecting, the rotating speed of the driving motor is controlled by the rotating speed controller, and then the amount of the dust material conveyed into the mixing box by the screw rod can be controlled, and then the dust concentration in the mixing box can be controlled, and then the high and low of the dust concentration in the discharging flue can be adjusted, and the online particulate matter detection equipment can be detected and debugged under different dust discharging concentrations of high, medium and low, and then the debugging and detection precision of the online particulate matter detection equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The structure of the particulate matter generating device is shown.

[0012] REFERENCE SIGNS

[0013] 10 mixing box

[0014] 101 first chamber

[0015] 102 second chamber

[0016] 11 discharging pipe

[0017] 12 partition plate

[0018] 20 feeding device

[0019] 21 casing

[0020] 211 second feeding port

[0021] 2110 feeding hopper

[0022] 212 second discharging port

[0023] 22 screw shaft

[0024] 221 screw blade

[0025] 23 drive motor

[0026] 30 speed controller

[0027] 40 fan

[0028] 401 air supply pipe DETAILED DESCRIPTION

[0029] The other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in the present specification based on different viewpoints and applications, without departing from the spirit of the present application.

[0030] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like in the present application are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] Please refer to Figure 1 It should be noted that the diagrams provided in the present embodiment only illustrate the basic concept of the present application in a schematic manner, and only show the components related to the present application in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component can be randomly changed, and the component layout pattern can be more complex.

[0033] The present application provides a particulate matter generating device, such as Figure 1As shown, the particulate matter generating device comprises a mixing box 10, a feeding device 20, a rotating speed controller 30 and a fan 40, wherein the mixing box 10 is provided with a first feeding port and a first discharging port, the first discharging port is connected with a discharging pipe 11, the feeding device 20 comprises a casing 21 and a driving motor 23, a spiral shaft 22 is rotatably arranged in the casing 21, a spiral blade 221 is spirally arranged on the spiral shaft 22 along the axial direction of the spiral shaft 22, the driving motor 23 is in transmission connection with the spiral shaft 22 for driving the spiral shaft 22 to rotate, a second feeding port 211 and a second discharging port 212 are arranged on the casing 21, and the second discharging port 212 on the casing 21 is in communication with the first feeding port on the mixing box 10; the rotating speed controller 30 is connected with the driving motor 23, and the rotating speed controller 30 is used for controlling the rotating speed of the driving motor 23; specifically, the mixing box 10 is further provided with an air inlet, and the fan 40 is connected with the air inlet on the mixing box 10.

[0034] The particulate matter generating device has the following beneficial effects: when the online particulate matter detection equipment needs to be debugged and detected, the discharging pipe 11 on the mixing box 10 is connected in communication with the discharging flue of the original dust discharging source, the dust material is filled into the casing 21 through the second feeding port 211 on the casing 21, the driving motor 23 drives the rotating shaft 22 to rotate, then the dust material is input into the mixing box 10 from the second discharging port 212 on the casing 21, and then the dust material input into the mixing box 10 is blown up and scattered by the fan 40 and then discharged into the discharging flue from the discharging pipe 101 to change the dust concentration in the discharging flue; during detection, the rotating speed of the driving motor 23 is controlled by the rotating speed controller 30, then the amount of the dust material conveyed into the mixing box by the spiral rod 22 can be controlled, then the dust concentration in the mixing box can be controlled, then the high and low of the dust concentration in the discharging flue can be adjusted, and the online particulate matter detection equipment can be detected and debugged under different dust discharging concentrations, thereby improving the debugging and detection precision of the online particulate matter detection equipment.

[0035] Specifically, in the embodiment, as shown in Figure 1 The first end of the spiral shaft 22 is rotatably arranged at the first end of the casing 21 through a bearing, the second end of the casing 21 is provided with an opening forming the second discharging port 212, the second end of the casing 21 is embedded in the first feeding port on the mixing box 10, and the second end of the spiral shaft 22 extends to the second end of the casing 21. Through the structure design, the dust material added into the casing 21 is conveyed to the second end of the casing 21, i.e. the second discharging port 212, by the rotation of the rotating shaft 22, and then directly falls into the mixing box 10 from the second end of the casing 21. The structure is simple, and the manufacturing cost is low.

[0036] Furthermore, in order to facilitate the addition of dust materials into the housing 21, preferably, in this embodiment, a feeding funnel 2110 is also provided on the second feed inlet 211.

[0037] Furthermore, in this embodiment, the speed controller is a frequency converter.

[0038] Furthermore, such as Figure 1 As shown, in this embodiment, the fan 40 is connected to the air inlet on the mixing box 10 through the air supply pipe 401.

[0039] Furthermore, in order to make the dust material conveyed into the mixing box 10 more evenly dispersed, thereby making the dust concentration in the simulated production more stable and uniform, preferably, such as Figure 1 As shown, in this embodiment, a partition plate 12 is also provided inside the mixing chamber 10. The partition plate 12 divides the interior of the mixing chamber 10 into a first chamber 101 and a second chamber 102, and the first chamber 101 and the second chamber 102 are connected. That is, the partition plate 12 does not completely separate the first chamber 101 and the second chamber 102. The first feed inlet of the mixing chamber 10 is located on the first chamber 101, the first discharge outlet is located on the second chamber 102, and the air inlet is located at the bottom of the first chamber 101. With this structural design, when the dust material is transported into the mixing chamber 10, the dust material is first transported into the first chamber 101. Since the air inlet is located on the first chamber, the dust material is first blown away in the first chamber 101. Then, the blown-away dust particles spread from the connection between the first chamber and the second chamber into the second chamber 102, and then are discharged from the discharge pipe 11 connected to the second chamber 102. This improves the uniformity of dust particle dispersion in the mixing chamber, resulting in a more uniform concentration of dust particles discharged from the discharge pipe 11.

[0040] In summary, the particulate matter generator of this invention can simulate the generation of dust at different concentrations, thereby improving the debugging and detection accuracy of online particulate matter detection equipment. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A particulate matter generating device, characterized by, The utility model relates to a kind of mixing box and its feeding device, including: Mixing box, first feed inlet and first discharge outlet are equipped on the mixing box, discharge pipe is connected on the first discharge outlet; Feeding device, the feeding device includes shell and drive motor, screw shaft is rotatably equipped inside the shell, helical blade is spirally equipped on the screw shaft along the axial direction of the screw shaft, the drive motor is used to drive the screw shaft rotation, second feed inlet and second discharge outlet are equipped on the shell, the second discharge outlet is communicated with the first feed inlet; Rotational speed controller, the rotational speed controller is connected with the drive motor, and the rotational speed controller is used to control the rotational speed of the drive motor; Fan, air inlet is further equipped on the mixing box, and the fan is connected with the air inlet.

2. A particulate matter generating device according to claim 1, wherein The first end of the screw shaft is rotatably arranged at the first end of the shell through bearing, the second end of the shell is provided with opening to form the second discharge outlet, the second end of the shell is embedded in the first feed inlet, and the second end of the screw shaft extends to the second end of the shell.

3. The particulate matter generating device of claim 1, wherein A feed hopper is provided on the second feed inlet.

4. The particulate matter generating device of claim 1, wherein The fan is connected with the air inlet through a blower pipe.

5. The particulate matter generating device of claim 1, wherein The rotational speed controller is a frequency converter.

6. The particulate matter generating device of claim 1, wherein The inside of the mixing box is provided with a partition plate, the partition plate divides the inside of the mixing box into first chamber and second chamber, and the first chamber and the second chamber are communicated, the first feed inlet is arranged on the first chamber, the first discharge outlet is arranged on the second chamber, and the air inlet is arranged at the bottom of the first chamber.

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