CN214972659U

CN214972659U - High-efficient foam dust device

Info

Publication number: CN214972659U
Application number: CN202120553331.3U
Authority: CN
Inventors: 张江辉; 何燕; 张元利; 崔建波; 金延超; 张�杰
Original assignee: Qingdao University of Science and Technology
Current assignee: Qingdao University of Science and Technology
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-12-03
Anticipated expiration: 2031-03-18

Abstract

The utility model provides a high-efficient foam dust device mainly comprises controller, priming pump, water injection pump, liquid case, driving motor, transmission shaft, mixing box, axis of rotation, brush, level gauge, manometer, pressure sensor, solenoid valve, relief valve, air compressor machine, ejector, coupling hose, steering telescopic bracket, shower nozzle, connecting pipe, cable, butterfly valve, filter, water inlet etc.. The foam dust settling device can accurately control the concentration of bubbles and the rate of generating the bubbles through pressure, rotating speed and liquid injection amount, the bubbles are sucked and sprayed through negative pressure generated by the ejector, and the generated bubbles are small in size, large in specific surface area and good in dust settling effect; and turn to telescopic bracket more accurate around pressing down the regional spraying of dirt through adjusting the dose, the dust fall is efficient.

Description

High-efficient foam dust device

Technical Field

The utility model relates to a foam generates and sprays the technique, especially relates to a foam dust fall environmental protection equipment field that is used for raise dust such as mining, powdered ore loading and unloading to handle.

Background

The method for preventing and controlling the raised dust generally comprises the steps of dust suppression by a wind-shield wall, water sprinkling and dust suppression, dust suppression by a closed structure, dust prevention net covering and the like. In-process such as mining, shipment, crushing, can locally produce a large amount of mine cars, and present mine dust is handled mainly that fog gun machine sprays water smoke, is sprinkled water dust fall mode, and these two kinds of modes dust fall are inefficient, and have wasted huge water resource. The water mist sprayed by the fog gun is mostly fine water drops, even if a surfactant is added into the water, the surface tension of the water can be reduced, the specific surface area is increased, and the water mist has a certain positive effect on dust fall; the dust fall effect is poor with the waterwheel spraying, and does not have sustainability, to the mineral powder ore etc. of conveyer belt conveying, the more bonding that leads to the fact easily of water spray, causes destruction or even stops whole production line to transfer apparatus easily. Some dust device adopt the foam generator for the fire control, then after generating a large amount of foams, blow with the air compressor machine and spout, blow out the foam, this kind of method controllability is poor, can't control the foam quantity, and spray not enough evenly, can cause the foaming agent extravagant.

Disclosure of Invention

To traditional powdered ore exploitation and shipment in-process mine dust handle difficultly, water waste, the foaming agent quantity is big, the poor scheduling problem of control, the utility model provides a high-efficient foam dust device mainly by the controller, the infusion pump, the water injection pump, the liquid agent case, driving motor, the transmission shaft, the mixing box, the axis of rotation, the brush, the level gauge, the manometer, pressure sensor, the solenoid valve, the relief valve, the air compressor machine, the ejector, coupling hose, turn to telescopic bracket, the shower nozzle, the connecting pipe, the cable, the butterfly valve, the filter, water inlet etc. constitute, wherein turn to telescopic bracket by the back shaft, the carousel, control and extend the support and constitute. The controller is respectively connected with the transmission motor, the liquid injection pump, the water injection pump, the air compressor, the steering telescopic bracket, the liquid level meter, the electromagnetic valve and the pressure sensor through cables, and controls the start and stop of the controller and controls the size of the controller accurately; one side of the mixing tank is respectively connected with a liquid injection pump and a water injection pump through connecting pipes, and the water injection pump and the liquid injection pump are respectively communicated with a water tank and a liquid tank; the transmission motor is respectively connected with the plurality of rotating shafts through the transmission shaft, brushes are arranged on the rotating shafts, and the transmission motor can provide rotating power for the plurality of rotating shafts through the transmission shaft; the pressure gauge, the pressure sensor, the liquid level meter and the safety valve are respectively arranged at the upper part of the mixing box; the other side of the mixing box is connected with a medicine inlet of an ejector through a connecting pipe by an electromagnetic valve, an outlet of the ejector is communicated with a spray head through a hose, and an outlet of an air compressor is connected with an air inlet of the ejector; the upper portion of the steering telescopic support can be rotated through the bearing turntable, the support is used for fixing the telescopic support, the connecting hose is bound on the steering telescopic support, the stretching and the expansion of the tail end of the support are controlled according to the actual spraying surface condition, the angle and the length are adjustable, and the left telescopic support and the right telescopic support can be adjusted in a bending mode.

When the dust suppression device works, the liquid level meter firstly monitors the liquid level of a mixed reagent in the mixing box, then the controller opens the liquid injection pump, the water injection pump, the transmission motor, the electromagnetic valve 1 and the electromagnetic valve 2, the controller judges the liquid injection amount and the water injection amount according to the liquid level, the transmission motor drives the transmission shaft, the transmission shaft drives the rotation shaft to rotate rapidly, different rotation shaft brushes are in contact friction, bubbles are generated and accumulated upwards; the pressure meter and the pressure sensor open the electromagnetic valve 3 according to the pressure in the mixing box, and start the air compressor; the air bubble production in the mixing box is increased, the pressure of the mixing box is increased, the compressed air generated by the air compressor sucks a large amount of air bubbles through the negative pressure generated by the ejector at high speed, is sprayed out through the spray head along with the compressed air, collides with mine dust in the air and falls, and is bonded on the stockpile or the ground.

The liquid level in the mixing box is 0.4-0.7 times the height of the whole incubator, the brushes are staggered with each other, the rotating speed is above 300r/min, the pressure in the mixing box is controlled within the range of 1-1.1bar, if the field dust fall amount is large, the rotating speed needs to be increased, the liquid inlet amount and the water inlet amount are increased, and the concentration and the amount of generated bubbles are increased.

Furthermore, the controller controls the liquid injection pump, the water injection pump, the air compressor and the transmission motor to be started or stopped according to the liquid level and the pressure.

Furthermore, the proportion of the liquid injection amount and the water injection pump is controlled according to the number of bubbles sprayed by the spray head and the pressure of the mixing box, the liquid injection amount is increased when the number of bubbles is large, and the water injection amount is increased otherwise.

Furthermore, the generation of the bubbles mainly depends on the quick rotation friction of the brush, the rotating speed, the injection amount and the water amount simultaneously determine the concentration of the bubbles, and the higher the rotating speed is, the more the injection amount is, and the higher the generated concentration of the bubbles is.

Further, the compressed air flows through the ejector and is taken in and ejected by the negative pressure generated by the ejector.

Further, the steering telescopic support can rotate around the fixed shaft for 270 degrees, and the support can stretch around the spraying area according to the spraying area.

The utility model has the advantages that the foam dust settling device can accurately control the bubble concentration and the bubble generation rate through the pressure, the rotating speed and the liquid injection amount, and suck and spray bubbles through the negative pressure generated by the ejector, so that the generated bubbles have small volume, large specific surface area and good dust settling effect; and turn to telescopic bracket more accurate around pressing down the regional spraying of dirt through adjusting the dose, the dust fall is efficient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a foam dust settling device provided in an embodiment of the present invention;

fig. 2 is a schematic view of a steering telescopic bracket provided in an embodiment of the present invention;

in the figure: 1. the automatic control system comprises a controller, 2, a liquid injection pump, 3, a water injection pump, 4, a liquid tank, 5, a transmission motor, 6, a transmission shaft, 7, a mixing tank, 8, a rotating shaft, 9, a brush, 10, a liquid level meter, 11, a pressure gauge, 12, a pressure sensor, 13, an electromagnetic valve, 14, a safety valve, 15, an air compressor, 16, an ejector, 17, a connecting hose, 18, a steering telescopic support, 19, a spray head, 20, a connecting pipe, 21, a cable, 22, a butterfly valve, 23, a filter, 24, a water inlet 1801, a support shaft 1802, a turntable, 1803, a left extension support, 1804, a right extension support and 1805.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

The utility model provides a high-efficient foam dust device, mainly by controller 1, the priming pump 2, the water injection pump 3, liquid case 4, driving motor 5, transmission shaft 6, the mixing box 7, axis of rotation 8, brush 9, level gauge 10, manometer 11, pressure sensor 12, solenoid valve 13, relief valve 14, air compressor machine 15, ejector 16, coupling hose 17, turn to telescopic bracket 18, shower nozzle 19, connecting pipe 20, cable 21, butterfly valve 22, filter 23, water inlet 24 etc. and constitute, wherein turn to telescopic bracket 18 by back shaft 1801, carousel 1802, it constitutes to extend support 1803.1804 about. The controller is respectively connected with the transmission motor 5, the liquid injection pump 2, the water injection pump 3, the air compressor 15, the steering telescopic bracket 18, the liquid level meter 10, the electromagnetic valve 13 and the pressure sensor 12 through cables 21, and controls the start and stop of the controller and controls the size and the quantity of the controller accurately; one side of the mixing tank 7 is respectively connected with the liquid injection pump 2 and the water injection pump 3 through connecting pipes 20, and the water injection pump 3 and the liquid injection pump 2 are respectively communicated with the water inlet 24, the filter 23 and the liquid agent tank 4; the transmission motor 5 is respectively connected with a plurality of rotating shafts 8 through transmission shafts 6, brushes 9 are placed on the rotating shafts 8, and the transmission motor 5 can provide rotating power for the rotating shafts 8 through the transmission shafts 6; a pressure gauge 11, a pressure sensor 12, a liquid level meter 10 and a safety valve 14 are respectively arranged at the upper part of the mixing box 7; the other side of the mixing box 7 is connected with a medicine inlet of an ejector 16 through an electromagnetic valve 13 by a connecting pipe 20, an outlet of the ejector 16 is communicated with a spray head 19 through a connecting hose 17, and an outlet of an air compressor 15 is connected with an air inlet of the ejector 16; the upper portion of the steering telescopic support 18 can be rotated and supported through a bearing turntable 1802, the telescopic support 18 is fixed 1801, a connecting hose 17 is bound on the steering telescopic support 18, the stretching and the expansion of the tail end of the support are controlled according to the actual spraying surface condition, the angle and the length are adjustable, and the left telescopic support and the right telescopic support can be adjusted in a bending mode.

When the dust suppression device works, the liquid level meter 10 firstly monitors the liquid level of a mixed reagent in the mixing box, then the controller 1 opens the liquid injection pump 2, the water injection pump 3, the transmission motor 5 and the electromagnetic valve 13 at the inlet, the controller 1 judges the liquid injection amount and the water injection amount according to the liquid level, the transmission motor 5 drives the transmission shaft, the transmission shaft 6 drives the rotating shaft 8 to rotate rapidly, different rotating shaft brushes 9 are in contact friction, bubbles are generated and accumulated upwards; the pressure gauge 11 and the pressure sensor 12 open the outlet electromagnetic valve 13 according to the pressure in the mixing box 7, and start the air compressor 15; the generation amount of air bubbles in the mixing box 7 is increased, the pressure of the mixing box 7 is increased, compressed air generated by the air compressor 15 passes through the ejector 16 at a high speed, a large amount of air bubbles are sucked by negative pressure generated by the ejector 16, and are ejected out through the nozzle 19 along with the compressed air, collide with mine dust in the air and fall, and are adhered to stockpiles or the ground.

Through falling dust district, conveyer belt regional test of unloading in the jaw breaker top in the iron mine, connect the air compressor machine form for fire control foam type foaming machine, the bubble that this dust device produced is small, specific surface is big, with strong points, and the dust fall is effectual and saves the medicament more.

Claims

1. A high-efficiency foam dust-settling device mainly comprises a controller (1), a liquid injection pump (2), a water injection pump (3), a liquid agent box (4), a transmission motor (5), a transmission shaft (6), a mixing box (7), a rotating shaft (8), a brush (9), a liquid level meter (10), a pressure gauge (11), a pressure sensor (12), an electromagnetic valve (13), a safety valve (14), an air compressor (15), an ejector (16), a connecting hose (17), a steering telescopic support (18), a spray head (19), a connecting pipe (20), a cable (21), a butterfly valve (22), a filter (23) and a water inlet (24); wherein the steering telescopic bracket (18) consists of a support shaft (1801), a turntable (1802) and left and right extension brackets (1803, 1804); the controller (1) is respectively connected with the transmission motor (5), the liquid injection pump (2), the water injection pump (3), the air compressor (15), the steering telescopic bracket (18), the liquid level meter (10), the electromagnetic valve (13) and the pressure sensor (12) through cables (21), and controls the start and stop of the controller and controls the size of the controller accurately; one side of the mixing box (7) is respectively connected with the liquid injection pump (2) and the water injection pump (3) through a connecting pipe (20), and the water injection pump (3) and the liquid injection pump (2) are respectively communicated with the water inlet (24), the filter (23) and the liquid tank (4); the transmission motor (5) is respectively connected with the plurality of rotating shafts (8) through the transmission shaft (6), the brush (9) is arranged on the rotating shafts (8), and the transmission motor (5) can simultaneously provide rotating power for the plurality of rotating shafts (8) through the transmission shaft (6); the pressure gauge (11), the pressure sensor (12), the liquid level meter (10) and the safety valve (14) are respectively arranged at the upper part of the mixing box (7); the other side of the mixing box (7) is connected with a medicine inlet of an ejector (16) through an electromagnetic valve (13) by a connecting pipe (20), an outlet of the ejector (16) is communicated with a spray head (19) through a connecting hose (17), and an outlet of an air compressor (15) is connected with an air inlet of the ejector (16); the upper part of the steering telescopic support (18) can rotate and support through a bearing turntable (1802), (1801) the telescopic support (18) is fixed, and the connecting hose (17) is bound on the steering telescopic support (18).

2. A high efficiency foam dedusting apparatus as set forth in claim 1 wherein the compressed air flows through the eductor (16) and the negative pressure generated by the eductor (16) entrains and ejects the air bubbles.