Dust generating device for dust wind tunnel experiment

Abstract

The utility model belongs to the technical field of wind tunnel experiment equipment, and discloses a dust generating device for a dust wind tunnel experiment, which is characterized in that a support rod and a support are arranged above a chassis, the top end of the support rod is connected with a transverse circular pipe, an auger is arranged in the circular pipe, the top of the left end of the circular pipe is connected with a feeding hopper, and the bottom of the right end of the circular pipe is connected with a discharging pipe; an annular groove is formed in the upper surface of the rotary disc, a material receiving opening is formed in the top wall of a cavity above the annular groove, the discharging pipe stretches into the cavity through the material receiving opening, a dust suction opening is further formed in the top wall of the cavity above the annular groove, and a dust suction head is fixedly installed outside the dust suction opening. Coal dust is pushed through the auger and then transferred through the rotary disc for the second time, the coal dust is conveyed to the bottom of the dust collection head, and the dust discharge rate can be conveniently controlled and adjusted by controlling the rotating speed of the auger and the rotating disc; and the device is uniform and stable in dust generation and accurate in adjustment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the wind tunnel experimental apparatus technical field, concretely relates to a dust wind tunnel experiment is with dust device. BACKGROUND

[0002] According to the test range requirement of mine infrared methane sensor dust influence test, utilize dust influence test device to produce a quantitative dust concentration value in the test air duct, and under the condition of a certain wind speed, form a dust concentration stable, uniform test condition in the working section, place the infrared methane sensor in the dust environment, investigate whether it can normally run in the dust environment, after placing for a period of time, determine the basic error again, investigate whether it meets the standard requirement.

[0003] The dust device is an important link in the whole test device, is used to send coal powder, and the uniform discharging and stable discharging characteristics of the dust device protect the wind tunnel dust concentration, and the existing dust device has the problem that the dust discharging speed is not easy to control and adjust. UTILITY MODEL CONTENTS

[0004] In order to overcome the above technical problems, the utility model provides a dust wind tunnel experiment dust device convenient for dust rate regulation.

[0005] The utility model adopts the following technical scheme:

[0006] A dust wind tunnel experiment dust device, including the chassis, the chassis top is fixedly connected with the support and the support, the support top is fixedly connected with the horizontal circular chamber, the chamber bottom is provided with the rotating disc, the rotating disc upper surface is provided with the ring groove, the ring groove top wall is provided with the dust suction port, the dust suction port outside is fixedly installed the dust suction head.

[0007] Preferably, the side inner wall of the chamber is fixedly connected with the scraper, the scraper is located above the ring groove, and the bottom edge of the scraper is flush with the upper surface of the rotating disc.

[0008] Preferably, the left end of the circular pipe is provided with motor one, the motor one is coaxially driven and connected with the screw conveyor, the support is provided with motor two, and the motor two is coaxially driven and connected with the rotating disc.

[0009] Preferably, the controller is further connected with the motor one and the motor two.

[0010] Preferably, the annular groove is concentrically provided with multiple rows, and the bottom of the dust suction head is provided with vertical dust suction pipes equal to the number of the annular grooves, each of which is aligned with one of the annular grooves.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a round pipe, a dragon is right to push coal dust, and coal dust is fallen to the turntable in the chamber after going to the right end, and then is secondarily transported by the turntable, and coal dust is sent to the bottom of the dust suction head, and by controlling the rotating speed of the dragon and the turntable, the dust emission rate can be conveniently controlled and adjusted, the utility model discloses a scraper to guarantee the standard filling capacity of coal dust in the annular groove, and the device is uniform and stable in dust emission, and the adjustment rate is also relatively accurate. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole schematic diagram of the utility model;

[0014] Figure 2 It is the schematic diagram of the turntable and the scraper in the utility model.

[0015] BRIEF DESCRIPTION OF DRAWINGS

[0016] 1 support rod;2 motor one;3 feed hopper;4 round pipe;5 dragon;6 blanking pipe;7 scraper;8 turntable;9 dust suction head;10 chamber;11 support;12 motor two;13 controller;14 annular groove. DETAILED DESCRIPTION

[0017] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout, and the raw materials and equipment adopted can be purchased from the market or are conventional in the art if not specifically specified, and the methods in the embodiments are conventional in the art if not specifically specified. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as the limitation of the utility model.

[0018] The utility model provides a kind of dust wind tunnel experiment is with dust device, including chassis, the chassis top is fixedly arranged support rod 1 and support 11, the support rod 1 top end is fixedly connected transverse round pipe 4, the round pipe 4 is arranged transverse screw conveyor, the left end top of round pipe 4 is connected feed hopper 3, the right end bottom of round pipe 4 is connected vertical discharge pipe 6, the top of support 11 is provided with horizontal circular chamber 10, the bottom of chamber 10 is provided with carousel 8, the upper surface of carousel 8 is opened annular groove 14, the top wall of chamber 10 above annular groove 14 is opened material receiving port, discharge pipe 6 passes through material receiving port and extends into chamber 10, the top wall of chamber 10 above annular groove 14 is also opened dust suction port, dust suction head 9 is fixedly installed outside dust suction port;The side inner wall of chamber 10 is fixedly connected with scraper 7, the scraper 7 is located above annular groove 14, and the bottom edge of scraper 7 is flush with the upper surface of carousel 8;The left end of round pipe 4 is provided with motor one 2, motor one 2 is coaxially drivenly connected with screw conveyor 5, motor two 12 is arranged in support 11, and motor two 12 is coaxially drivenly connected with carousel 8;The annular groove 14 is concentrically provided with multiple, and the bottom of dust suction head 9 has vertical dust suction pipe equal to the number of annular groove 14, and each dust suction pipe is aligned with one annular groove 14.

[0019] A kind of dust wind tunnel experiment is with dust device, when using:

[0020] Coal dust is put into feed hopper 3, motor one 2 drives screw conveyor 5 to rotate rightward and stably pushes coal dust at uniform speed, coal dust reaches right end and falls to the annular groove 14 of carousel 8 via discharge pipe 6, motor two 12 drives carousel 8 to rotate at uniform speed, when reaching scraper 7, excess coal dust is blocked by scraper 7, to ensure the standard dust amount in annular groove 14, carousel 8 transports dust to below dust suction head 9, and dust suction pipe sucks out the dust in annular groove 14, to complete dusting work;The rotation speed of motor one 2 and motor two 12 can be adjusted by controller 13, to accurately control the transport advancing speed of dust, to control the dusting speed.

[0021] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that: without departing from the principles and purposes of the utility model, various changes, modifications, replacements and deformation can be carried out to the above embodiments, and the scope of the utility model is defined by claims and its equivalents.

Claims

1. A dust-generating device for dust wind tunnel experiments, comprising a chassis, characterized in that, A support rod and a support are fixedly installed on the top of the chassis. A horizontal circular tube is fixedly connected to the top of the support rod. A horizontal auger is installed inside the circular tube. A feed hopper is connected to the top left end of the circular tube, and a vertical discharge pipe is connected to the bottom right end of the circular tube. A horizontal circular chamber is set at the top of the support. A turntable is set at the bottom of the chamber. An annular groove is opened on the upper surface of the turntable. A material receiving port is opened on the top wall of the chamber above the annular groove. The discharge pipe extends into the chamber through the material receiving port. A dust suction port is also opened on the top wall of the chamber above the annular groove. A dust suction head is fixedly installed on the outside of the dust suction port.

2. The dust generating device for a dust wind tunnel experiment according to claim 1, characterized in that, A scraper is fixedly connected to the inner side wall of the chamber. The scraper is located above the annular groove, and the bottom edge of the scraper is flush with the upper surface of the turntable.

3. The dust-generating device for a dust wind tunnel experiment according to claim 1, characterized in that, Motor 1 is installed at the left end of the circular tube, and the motor is coaxially connected to the auger. Motor 2 is installed inside the support, and the motor 2 is coaxially connected to the turntable.

4. A dust-generating device for a dust wind tunnel experiment according to claim 3, characterized in that, It also includes a controller that controls the connection between motor one and motor two.

5. A dust-generating device for wind tunnel experiments according to claim 1, characterized in that, The annular grooves are arranged concentrically in multiple rows, and the bottom of the suction head has a number of vertical suction pipes equal to the number of annular grooves, with each suction pipe aligned with one annular groove.

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