The automatic adjustable spraying device of volume production
Technical field
The present invention relates to a kind of automatic sprayer, relate in particular to the automatic adjustable spraying device of a kind of volume production.
Background technology
At present, drifting along that most coal mine Xia Huo coal preparation plant causes for belt-conveying flown upward, the situation of contaminated environment, the measure of taking is that the form of automatic vibration formula, mechanical type water spray is carried out depositing dust, the defect of these two kinds of modes is could realize in the time of need to having load on belt, can not water spray dust when belt zero load or belt feeder have just been started, thereby the coal dust that drying function is sticked on belt cannot be processed; In addition, when having load on belt feeder, often again because injection flow rate can not regulate according to the size of load on belt feeder, and cause coal moisture content too high, make coal be easy to stop up sieve aperture in follow-up screening treatment process.Once sieve pore blockade, the lifting of coal, transportation and screening work all must be shut down, and transportation and coal separation operation that this has a strong impact on colliery, cause serious economic loss.Although patent 200720023028.2 has proposed a kind of atomizing de-dusting apparatus that is not subject to the unloaded restriction of travelling belt, this patent still cannot regulate injection flow rate according to the conveying capacity of coal on belt feeder.
The automatic adjustable spraying device of volume production the present invention relates to, can regulate injection flow rate according to the conveying capacity of coal on belt feeder, even do not carry out atomizing de-dusting according to predefined injection flow rate when belt feeder starts yet, avoided existing static pressure sprayer unit by manually opening, can only quantitatively spray and automatic sprayer cannot not realized the technological deficiencies such as atomizing de-dusting when belt feeder starts.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of simple in structure, overcome the defect of prior art, be not subject to the unloaded restriction of travelling belt, and can automatically regulate according to the coal amount of transporting on belt feeder the automatic adjustable spraying device of volume production of injection flow rate, can effectively control injection flow rate, avoid coal when screening, because water content is too high, to produce the phenomenon of plug-hole.
Technical problem to be solved by this invention realizes by the following technical solutions.
The automatic adjustable spraying device of volume production, is comprised of determination of yield sensor, controller, pneumatic diaphragm pump, filter, magnetic valve, flow control valve, pipeline and nozzle.Wherein, determination of yield installation of sensors is in the carrying roller of belt feeder, controller is connected with determination of yield sensor, pneumatic diaphragm pump, magnetic valve and flow control valve by electric wire, the water inlet of filter is connected with water source, its delivery port is connected with pneumatic diaphragm pump, and the air inlet of pneumatic diaphragm pump is connected with source of the gas, and its delivery port is connected with magnetic valve, the delivery port of magnetic valve is connected with flow control valve by pipeline, and the delivery port of flow control valve is connected with nozzle by pipeline.
Described determination of yield sensor is comprised of three pressure sensors, is arranged on respectively in three carrying rollers of belt feeder V-type carrying roller group.Described magnetic valve and flow control valve all adopt flame-proof type control valve, and input power is 24V dc source.
The present invention is set as long-term stopped status by the running status of belt feeder, short-term is shut down and no-load running state, load operation state, by determination of yield sensor, measured four kinds of running statuses of belt feeder, the flow value of the Signal Regulation flow control valve that controller is measured according to determination of yield sensor, and control starts membrane pump, the keying of magnetic valve and flow control valve, and then the batch (-type) in executive chairman's time interval is quantitatively sprayed can to realize belt feeder when long-term stopped status, belt feeder is carried out the batch (-type) of short time interval and is quantitatively sprayed when short-term shutdown and no-load running state, belt feeder is carried out the real-time adjustable spraying of continuous volume production when load operation.
Adopt technique scheme can not be subject to the restriction of belt zero load, while setting belt feeder zero load according to the requirement of depositing dust is completely artificial, spray time and the number of times of fog, when belt feeder load running, can regulate time and the spray flow that sprays fog according to the quantity of transporting coal on belt feeder, thereby the floating dust producing during production drops to smaller state, in the pollution that reduces environment, can also effectively control the water content of coal, to avoid coal to stop up sieve aperture when the follow-up screening.
The pneumatic diaphragm pump volume that the present invention adopts is little, lightweight, install and conveniently moving, and to adopt down-hole source of the gas is power, need not high voltage source, use safe, energy-conservation.This device is compared with electric spraying device, not only has atomizing de-dusting effective, saves water source, maintenance period and service life are all long, and simple in structure, adjust, safeguard simple, particularly can be according to coal conveying capacity adjustable spraying amount, avoid spraying water excessive and stop up sieve aperture.The present invention is applicable to coal mine down-hole tunnel, coal preparation plant etc. and uses belt haulage coal, produces the occasion that dust need to increase atomizing de-dusting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1. determination of yield sensor; 2. controller; 3. pneumatic diaphragm pump; 4. source of the gas; 5. filter; 6. water source; 7. magnetic valve; 8. flow control valve; 9. electric wire; 10. pipeline; 11. nozzles.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment and diagram, further set forth the present invention.
As shown in Figure 1, the automatic adjustable spraying device of a kind of volume production, is comprised of determination of yield sensor 1, controller 2, pneumatic diaphragm pump 3, filter 5, magnetic valve 7, flow control valve 8, pipeline 10 and nozzle 11.Wherein, determination of yield sensor 1 is arranged in the carrying roller of belt feeder, controller is connected with determination of yield sensor 1, pneumatic diaphragm pump 3, magnetic valve 7, flow control valve 8 by electric wire 9, the water inlet of filter 5 is connected with water source 6, its delivery port is connected with pneumatic diaphragm pump 3, the air inlet of pneumatic diaphragm pump 3 is connected with source of the gas 4, its delivery port is connected with magnetic valve 7, the delivery port of magnetic valve 7 is connected with flow control valve 8 by pipeline 10, and the delivery port of flow control valve 8 is connected with nozzle 11 by pipeline 10.
Described determination of yield sensor 1 is comprised of three pressure sensors, is arranged on respectively in three carrying rollers of belt feeder V-type carrying roller group.Described magnetic valve 7 and flow control valve 8 all adopt flame-proof type control valve, and input power is 24V dc source.
Below in conjunction with drawings and Examples, use procedure of the present invention is described; before using, first according to actual condition set amount, originates from the parameter of moving adjustable spraying device, determine spray amount when the interval and belt feeder of the indicating value of determination of yield sensor 1 when the shutdown of belt feeder short-term and no-load running and belt feeder are shut down two states for a long time moves.When belt feeder is shut down or during no-load running in short-term, the determination of yield sensor 1 being arranged in support roller for belt machine just can determine that belt feeder is in shutting down and no-load running state according to the pressure signal of its mensuration, controller 2 is controlled pneumatic diaphragm pump 3, magnetic valve 7 and flow control valve 8 open or close simultaneously, and adjust flux control valve 8, make it in shutting down and the required flow value of no-load running, the water under high pressure of pneumatic diaphragm pump 3 outputs is through magnetic valve 7, flow control valve 8 and pipeline 10 are assigned to nozzle 11, and then the batch (-type) of the short time interval of executive system setting is quantitatively sprayed.When belt feeder is when shutting down for a long time; determination of yield sensor 1 just can determine that belt feeder is in long-term stopped status according to the pressure signal of its mensuration; controller 2 is controlled pneumatic diaphragm pump 3, magnetic valve 7 and flow control valve 8 and is opened or closed simultaneously; and adjust flux control valve 8; make it in the required flow value of long-term stopped status; the water under high pressure of pneumatic diaphragm pump 3 outputs is assigned to nozzle 11 through magnetic valve 7, flow control valve 8 and pipeline 10, and then the batch (-type) at the long-time interval of executive system setting is quantitatively sprayed.When belt feeder is during in normal load operation, controller 2 just comes the flow value of adjust flux control valve 8 to the numerical value of default according to the measured freight volume of determination of yield sensor 1, pneumatic diaphragm pump 3 starts, magnetic valve 7, flow control valve 8 are opened simultaneously, water under high pressure is from nozzle 11 ejections, form continuous water smoke, make quantitatively to originate from moving adjustable spraying device and realize the real-time adjustable spraying function of continuous volume production.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.