CN105771496B - Wet-scrubbing equipment - Google Patents
Wet-scrubbing equipment Download PDFInfo
- Publication number
- CN105771496B CN105771496B CN201610318009.6A CN201610318009A CN105771496B CN 105771496 B CN105771496 B CN 105771496B CN 201610318009 A CN201610318009 A CN 201610318009A CN 105771496 B CN105771496 B CN 105771496B
- Authority
- CN
- China
- Prior art keywords
- fan
- detection device
- water
- pipe
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005200 wet scrubbing Methods 0.000 title claims abstract 12
- 239000000428 dust Substances 0.000 claims abstract description 120
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 149
- 238000001514 detection method Methods 0.000 claims description 68
- 238000012544 monitoring process Methods 0.000 claims description 30
- 238000005259 measurement Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 19
- 230000008602 contraction Effects 0.000 claims description 15
- 238000009792 diffusion process Methods 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 50
- 239000010419 fine particle Substances 0.000 description 9
- 238000010992 reflux Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- 208000028571 Occupational disease Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 201000010001 Silicosis Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/10—Means for removing the washing fluid dispersed in the gas or vapours
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to technical field of environment protection equipment more particularly to a kind of wet-scrubbing equipments.Wet-scrubbing equipment proposed by the present invention, including feed pipe, knockouts, wind turbine and cyclone separator；The knockouts includes sequentially connected collapsible tube, trunnion and diffuser；The feed pipe is arranged on the side wall of the collapsible tube；The feed pipe is provided with nozzle, which is arranged in the collapsible tube；The wind turbine includes air inlet and fan outlet, which is connected with the diffuser, which is connected with the air inlet of the cyclone separator.Wet-scrubbing equipment proposed by the present invention improves the removal efficiency to particle dust in dusty gas, and the emission level of dusty gas can be made to reach the occupational protection standard of national regulation.
Description
Technical Field
The invention belongs to the technical field of environment-friendly equipment, and particularly relates to wet dust removal equipment.
Background
Dust is solid fine particles generated by natural force or mechanical force, suspended and in the air, and at present, productive dust is still one of main occupational hazard factors in the industries of mines, thermoelectricity, steel, ports and the like in China. In the dust removal technology, particles of 1 to 200 μm or more are generally regarded as dust. The inhalable dust particles with the diameter of less than 10 mu m are the main source of occupational diseases such as pneumoconiosis and the like, and seriously threaten the health and the life of human beings.
The existing wet type washing equipment comprises an induced draft pipe, a fan and a cyclone separator, wherein a nozzle is arranged in the fan. The dust-containing gas enters the fan from the air inducing pipe, is mixed with atomized water drops sprayed by the nozzle in the fan, and then enters the cyclone separator to be separated into gas and slurry.
The wet type washing equipment has high efficiency of removing large particles in the dust-containing gas and long service life, and is widely applied to the field of productive dust such as mines and the like. However, the capacity for removing fine particles from the dust-containing gas is limited, the efficiency is low, and the concentration of fine particle dust in the gas separated by the cyclone separator cannot meet the state-specified occupational protection standard.
Disclosure of Invention
Aiming at the problem that the treatment effect of the wet type washing equipment cannot meet the occupational protection standard specified by the state, the invention provides wet type dust removal equipment which improves the removal efficiency of fine particle dust in dust-containing gas and enables the emission level of the dust-containing gas to reach the occupational protection standard specified by the state.
The wet dust removal equipment provided by the invention comprises a water supply pipe, a condenser, a fan and a cyclone separator; the coagulator comprises a contraction pipe, a throat pipe and a diffusion pipe which are connected in sequence; the water supply pipe is arranged on the side wall of the shrinkage pipe; the water supply pipe is provided with a nozzle which is arranged in the contraction pipe; the fan comprises a fan air inlet and a fan air outlet, the fan air inlet is connected with the diffusion pipe, and the fan air outlet is connected with the air inlet of the cyclone separator; under the action of negative pressure generated by the fan, the dust-containing gas enters the contraction pipe and is mixed with the atomized water drops sprayed by the nozzle in the contraction pipe to obtain a mixture of the dust-containing gas and the atomized water drops, and the mixture sequentially passes through the throat pipe and the diffusion pipe, then enters the fan, and enters the cyclone separator through the fan to be separated into gas and slurry.
Furthermore, the invention provides wet dust removing equipment, wherein a plurality of concentric circular arc-shaped baffles are arranged in the cyclone separator.
Furthermore, the wet dust removal equipment provided by the invention also comprises an induced draft pipe and a water receiving device; a reflux isolation groove is arranged on the side wall of the bottom of the induced duct; the water receiving device is hermetically arranged on the outer wall of the induced draft pipe and corresponds to the reflux isolation groove in position.
Further, the invention provides the wet dust removal equipment, and the spraying direction of the nozzle is parallel to the central axis of the coalescer.
Furthermore, the wet dust removal equipment provided by the invention also comprises a shell and a hub provided with a plurality of blades; the blades are uniformly distributed along the circumferential direction of the hub; the casing comprises a front side plate, a rear side plate and a volute side wall positioned between the front side plate and the rear side plate; the air inlet of the fan is vertical to the end surface of the hub; the fan air outlet is arranged at the tail end of the side wall of the volute.
Furthermore, the wet dust removal equipment provided by the invention also comprises a motor for driving the fan, a booster pump, a detection device and a measurement and control system; the detection device comprises a water pressure detection device and a water flow switch; the water flow switch and the water pressure detection device are respectively arranged in the water supply pipe; the booster pump is connected with the water supply pipe; the measurement and control system comprises a booster pump control unit which is respectively electrically connected with the water pressure detection device and the booster pump and is used for starting or stopping the booster pump according to a received water pressure signal output by the water pressure detection device; the measurement and control system further comprises a motor start-stop control unit which is respectively electrically connected with the water flow switch and the motor and used for starting or stopping the motor according to the received water flow signal output by the water flow switch.
Furthermore, the detection device of the wet dust removal equipment provided by the invention also comprises a fan operation parameter detection device arranged in the air inlet and/or the air outlet of the fan; the measurement and control system further comprises a fan operation monitoring unit, wherein the fan operation monitoring unit is connected with the fan operation parameter detection device and used for detecting fan operation parameters and stopping the motor or changing the rotating speed of the motor according to the detected fan operation parameters.
Furthermore, the detection device of the wet dust removal equipment provided by the invention can also comprise a motor operation parameter detection device; the measurement and control system further comprises a motor operation monitoring unit, wherein the motor operation monitoring unit is connected with the motor operation parameter detection device and used for detecting the motor operation parameters and stopping or starting the motor according to the detected motor operation parameters.
Furthermore, the detection device of the wet dust removal equipment provided by the invention can also comprise a temperature vibration parameter detection device; the measurement and control system further comprises a temperature vibration monitoring unit, wherein the temperature vibration monitoring unit is connected with the temperature vibration parameter detection device and used for detecting temperature vibration parameters and stopping or starting the motor according to the detected temperature vibration parameters.
Furthermore, the wet dust removal equipment provided by the invention also comprises a control cabinet and a touch screen; the detection device and the measurement and control system are arranged in the control cabinet; the touch screen is connected with the measurement and control system.
Compared with the prior art, the wet dust removal equipment provided by the invention is provided with the coagulator with a Venturi structure, and the diameter of atomized water drops in the coagulator is further reduced; the dust carried in the gas is thrown to the water drops by huge inertia force when the gas flows around the water drops and is collected by the water drops; the fine dust and the water drops collide violently and are condensed to form a larger relative speed, so that the capturing capacity of the atomized water drops on the fine particle dust is enhanced, and larger water drops mixed with the dust are formed; and further accelerated, collided and condensed in the fan, so that the dust is more easily separated in a subsequent cyclone separator, the removal efficiency of fine particle dust in the dust-containing gas is improved, and the emission level of the dust-containing gas can reach the state-specified occupational protection standard.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a top view of a wet dedusting apparatus according to an embodiment of the present invention;
FIG. 2 is a side view of a wet dedusting apparatus according to an embodiment of the present invention;
FIG. 3 is a front view of an induced draft pipe of a wet dust removing apparatus according to an embodiment of the present invention;
FIG. 4 is a side view of an induced draft duct of a wet dust removing apparatus according to an embodiment of the present invention;
FIG. 5 is a front sectional view of a blower of a wet dust removing apparatus according to an embodiment of the present invention;
FIG. 6 is a top sectional view of a blower of a wet scrubber apparatus according to an embodiment of the present invention;
FIG. 7 is a schematic view of the measurement and control system of the wet dust removal device in accordance with the embodiment of the present invention; wherein,
1, an induced draft pipe;
2 a water supply pipe;
21 a nozzle;
31 shrinking the tube;
a 32 throat;
33 expanding the tube;
4, a fan;
41 air inlet of the fan;
42, a fan air outlet;
43 a housing;
44 a hub;
45 blades;
46 a front side plate;
47 a rear side plate;
48 a volute sidewall;
5, a cyclone separator;
6, a motor;
7, a water receiving device;
8, a detection device;
9, a measurement and control system;
10 control cabinet.
Detailed Description
In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.
It should be noted that the conveying pipeline of the dust-containing gas, the dust removing pipeline in the dust removing device, the motor, the booster pump, the induced draft pipe, the nozzle and the cyclone separator belong to common components or devices in the field and are not the invention point of the present application, and therefore, the working principle and the structure thereof will not be specifically explained.
Examples
As shown in fig. 1 and 2, the wet dust removing apparatus of the present embodiment includes a water supply pipe 2, a condenser, a fan 4, and a cyclone 5; the coalescer comprises a contraction pipe 31, a throat pipe 32 and a diffusion pipe 33 which are connected in sequence; the water supply pipe 2 is provided on a sidewall of the shrinkage pipe 31; the water supply pipe 2 is provided with a nozzle 21, the nozzle 21 is arranged in the shrinkage pipe 31; the fan 4 comprises a fan air inlet 41 and a fan air outlet 42, the fan air inlet 41 is connected with the diffusion pipe 31, and the fan air outlet 42 is connected with the air inlet of the cyclone separator 5; under the action of the negative pressure generated by the fan 5, the dust-containing gas enters the contraction pipe 31 and is mixed with the atomized water drops sprayed by the nozzle 21 in the contraction pipe 31 to obtain a mixture of the dust-containing gas and the atomized water drops, and the mixture sequentially passes through the throat pipe 32 and the diffusion pipe 33, then enters the fan 4, and enters the cyclone separator 5 through the fan 4 to be separated into gas and slurry.
It should be noted that the dust-containing gas to be treated, which is conveyed to the wet dust removal equipment through the conveying pipeline, belongs to a gas-solid two-phase flow, and is a mixture of gas and dust with different particle sizes.
The coagulator is of a Venturi structure and comprises a contraction pipe, a throat pipe and a diffusion pipe which are connected in sequence.
Preferably, the shrink tube is of an inverted cone shape; the diffusion tube is conical; the throat is cylindrical and has a length approximately equal to the diameter of the throat.
When the device is applied specifically, under the action of negative pressure generated by the fan, dust-containing gas conveyed to the wet dust removal equipment through the conveying pipeline firstly enters the contraction pipe. After the dust-containing gas enters the shrinkage pipe, the gas is gradually accelerated in the shrinkage pipe and is mixed with atomized water drops sprayed by the nozzle to obtain a mixture of the gas, the dust, the atomized water drops and the atomized water drops mixed with the dust.
After mixing with the atomized water droplets, the dust-containing gas is a mixture of gas, dust of different particle sizes, and atomized water droplets, which is a three-phase flow of gas, liquid, and solid.
The diameter of the atomized water droplets ejected from the nozzle provided in the convergent tube is about 1 to 80 um.
Preferably, the spray direction of the nozzle is parallel to the central axis of the coalescer.
The spraying direction of nozzle is parallel with the central axis of this coalescer to make the direction of motion of dirty gas unanimous with the direction of motion of atomizing water droplet, increase the relative motion speed of gas, dust and water droplet, increased the area of contact of dust and atomizing water droplet, make atomizing water droplet can catch more dust.
The mixture further passes through the throat at a high speed, and in the throat, the atomized water drops are impacted into finer water drops by gas, so that the contact area of the dust and the atomized water drops is effectively increased, and more dust can be captured by the atomized water drops.
After passing through the throat, the gas, liquid and solid three-phase mixture enters the diffuser pipe, and the mixture gradually decelerates in the diffuser pipe, so that the turbulence and the head loss are reduced.
In the contraction tube, throat tube and diffusion tube of the coalescer, dust entrained in the gas is thrown onto the water droplets by a large inertial force when the gas flows around the water droplets and is trapped by the water droplets.
After passing through the diffusion pipe, the mixture enters a fan, and under the centrifugal action of a high-speed rotating impeller of the fan, water drops and dust violently collide and polymerize, so that more dust is captured by the water drops; and then, the mixture enters the bottom of a cyclone separator, and at least 2-3 circles of circulation flow are formed in the cyclone separator, so that the gas rises, water drops mixed with dust fall down to form slurry, and the slurry is discharged from a sewage outlet in the bottom of the cyclone separator.
Compare in setting up the nozzle in choke or shrink pipe or fan, set up the nozzle in the shrink pipe, can make the mixing time of atomizing water droplet and dusty gas longest, mixing efficiency is the highest, can effectively reduce the power of water consumption and fan.
The wet dust removal equipment of the embodiment is provided with the coagulator with a Venturi structure, and the diameter of atomized water drops in the coagulator is further reduced; the dust carried in the gas is thrown to the water drops by huge inertia force when the gas flows around the water drops and is collected by the water drops; the fine dust and the water drops collide violently and are condensed to form a larger relative speed, so that the capturing capacity of the atomized water drops on the fine particle dust is enhanced; atomized water drops in the fan are polymerized to form larger water drops mixed with dust, and the water drops are more easily separated in a subsequent cyclone separator; thereby improving the efficiency of removing the fine particle dust in the dust-containing gas and enabling the emission level of the dust-containing gas to reach the state-specified occupational protection standard.
When the cyclone separator is applied specifically, a plurality of concentric circular arc-shaped baffles are arranged in the cyclone separator of the wet dust removal device to form a multi-baffle cyclone water film separator.
When the cyclone separator is used for treating gas, liquid and solid mixtures, the mixtures form a downward external spiral and an upward internal spiral double-gas column in the cyclone separator, and the pressure loss is large. After a plurality of concentric circular arc baffles are arranged in the cyclone separator, the mixed gas flow passes through the circular arc baffles for only 3/4 circles and has at most one circle at the gas wall. At the same air inlet speed, the resistance is smaller and the efficiency is higher.
On the other hand, the mixture entering the cyclone is relatively high in water content, for example, approximately 10000m in capacity of the wet dust collecting apparatus equipped with a fan with a power of 11KW3H, water consumption of about 1.3m3/h。
The water which is discharged from the air outlet of the fan and enters the cyclone separator and mixed with the dust drops on the inner wall of the cyclone separator to form a water film; after a plurality of concentric circular arc baffles are arranged in the cyclone separator, the area of a water film can be further increased, so that the water film is thinned, liquid foam entrainment is reduced, fine bubbles mixed in slurry are reduced, and gas and slurry are separated more thoroughly.
A plurality of concentric circular arc-shaped baffles are arranged in the cyclone separator of the wet dust removal equipment, the cyclone separator is internally divided into a plurality of treatment chambers, and the plurality of chambers work in parallel, so that the removal efficiency of fine particle dust in the dust-containing gas is further improved.
As shown in fig. 3 and 4, in a specific application, the wet dust removing device of this embodiment may further include an induced duct 1 and a water receiving device 7; a reflux isolation groove penetrating through the pipe wall is formed on the side wall of the bottom of the induced draft pipe; the water receiving device is hermetically arranged on the outer wall of the induced draft pipe and corresponds to the reflux isolation groove in position.
Specifically, a reflux isolation groove is formed in the side wall of the lowest position of the induced draft tube; and a water receiving device is welded or bonded on the outer wall of the induced draft pipe at the position corresponding to the reflux isolation groove.
After the wet dust removal equipment is shut down, water in the section of the dust removal pipeline from the throat pipe to the contraction pipe may be retained in the pipeline and also may flow back to the conveying pipeline of the dust-containing gas, so that the dust removal pipeline is corroded, damaged or frozen, and even the dust removal pipeline is blocked. Through setting up backward flow isolation tank and water receiving device, flow back the water and the dust mixture in this section dust removal pipeline of choke to shrink pipe in this induced duct to fall into in the water receiving device through the backward flow isolation tank, then avoided above-mentioned problem.
As shown in fig. 5 and fig. 6, in a specific application, the blower of the wet dust removing device of the present embodiment further includes a housing 43 and a hub 44 provided with a plurality of blades 45; the plurality of blades 45 are uniformly distributed along the circumferential direction of the hub 44; the housing includes front and rear side plates 46, 47, and a volute side wall 48 between the front and rear side plates; the fan inlet 41 is arranged in the center of the front side plate 46 and is perpendicular to the end surface of the hub 44; the fan outlet 42 is disposed at the trailing end of the volute sidewall.
It should be noted that, at the head end of the volute side wall, the distance from the blade tip of the blade to the volute side wall is the smallest; at the trailing end of the volute sidewall, the distance from the tip of the blade to the volute sidewall is greatest.
This embodiment wet dedusting equipment's fan belongs to centrifugal fan, when for the gas in the coalescer provides the negative pressure, utilizes high-speed rotating vane's centrifugal action for dust in the dirty gas collides violently, the polymerization with the atomizing water droplet, makes more dust by the water droplet seizure, and atomizing water droplet polymerization forms great water droplet that has the dust of mixing, has both increased the velocity of motion of this mixture, has strengthened the air-water mixture effect again.
The fan of the wet dust removal equipment has few easily-damaged parts, and the main easily-damaged part is a fan blade. The field practice of many users has proven to be over 2 years in life. Therefore, the maintenance workload of the fan is small.
In specific application, as shown in fig. 7, the wet dust removal device of this embodiment further includes a motor 6 for driving the fan, a booster pump, a detection device 8, and a measurement and control system 9; the detection device comprises a water pressure detection device 81 and a water flow switch 82; the water pressure detecting means 81 and the water flow switch 82 are respectively provided in the water supply pipe 2; the booster pump is connected with the water supply pipe 2; the measurement and control system 9 comprises a booster pump control unit 91, wherein the booster pump control unit 91 is respectively electrically connected with the water pressure detection device 81 and the booster pump and is used for starting or stopping the booster pump according to a received water pressure signal output by the water pressure detection device; the measurement and control system 9 further includes a motor start/stop control unit 92, and the motor start/stop control unit 92 is electrically connected to the water flow switch and the motor, and is configured to start or stop the motor 6 according to a received water flow signal output by the water flow switch.
When the wet dust removal equipment is applied specifically, the booster pump is connected with the water supply pipe, and the water supply pipe is connected with the water source of the outer pipe network.
When the wet dust removal device is started, the water flow switch detects whether water is conveyed into the water supply pipe from the outer pipe network or not, if the water is not supplied, the sound and light alarm is performed, the ringing is continuously performed, and the warning information is displayed on the touch screen.
If water exists, the warning sound stops, the water pressure condition in the water supply pipe is further detected, and if the water pressure is within an allowable range, a motor for driving a fan is started to start the dust removal work; if the water supply pressure is lower than the required minimum pressure, starting a booster pump to boost the water from the outer pipe network; when the water pressure is in the allowable range, starting a motor for driving a fan to start dust removal; if the water pressure is still insufficient after the booster pump is started to the set time, the sound and light alarm is carried out, the bell rings continuously, and warning information is displayed on the touch screen. Preferably, the set time is five minutes.
The wet dust removing equipment of the embodiment has the function of automatically controlling water supply. Water flow detection and water pressure detection are added at the water inlet, and when no water flow exists, sound and light alarm is given; when the water supply pressure is insufficient, the booster pump is started; if the water flow and the water pressure are normal, a motor for driving the fan is started to start the dust removal work. The fan starts the back automatic water supply.
The wet dust removal equipment has the function of automatic water supply control, so that the condition that a fan keeps running when water is cut off is avoided, but the dust removal effect is poor; avoid when water pressure is not enough, the fan keeps the operation, but the dust removal effect is not good.
In a specific application, the detection device of the wet dust removal equipment of the embodiment further comprises a fan operation parameter detection device 83 arranged in the air inlet and/or the air outlet of the fan; the measurement and control system further comprises a fan operation monitoring unit 93, wherein the fan operation monitoring unit 93 is connected with the fan operation parameter detection device 83 and used for detecting fan operation parameters and stopping the motor or changing the rotating speed of the motor according to the detected fan operation parameters.
Preferably, the fan operating parameters include air volume, static pressure, full pressure and fan efficiency.
Preferably, the fan operation parameter detection device comprises a static pressure detection device and a full pressure detection device.
Preferably, the static pressure detection device and the full pressure detection device are high-precision silicon piezoresistive micro-pressure sensors respectively. It should be noted that the air volume and the fan efficiency are respectively calculated through a static pressure detection value and a full pressure detection value.
This embodiment wet dust collecting equipment carries out on-line monitoring and control to fan operating condition through the performance parameter of real-time supervision fan, like amount of wind, static pressure, full pressure, efficiency etc. has fan work protect function, makes the operation of equipment safer more high-efficient.
In a specific application, the detecting device of the wet dust removing device of the embodiment may further include a motor operation parameter detecting device 84; the measurement and control system further comprises a motor operation monitoring unit 94, wherein the motor operation monitoring unit 94 is connected with the motor operation parameter detection device 84, and is used for detecting the motor operation parameters and stopping or starting the motor according to the detected motor operation parameters. The motor operating parameters include three-phase current, three-phase voltage, three-phase frequency and motor power. The motor operation parameter detection device comprises a motor working current detection device and a motor working voltage detection device.
Preferably, the motor working current detection device is a three-phase current transformer; the motor working voltage detection device is a three-phase voltage transformer. Preferably, the motor operation monitoring unit 94 is disposed within a power supply cabinet that supplies power to the motor. Preferably, the motor operation monitoring unit 94 may be implemented using a commercially available ADC sampling detector.
The wet dust removal equipment carries out online monitoring and control on the working state of the motor through monitoring three-phase current, three-phase voltage, three-phase frequency, power and the like in the running process of the motor in real time, has a motor working protection function, and enables the running of the equipment to be safer and more efficient.
In a specific application, the detecting device of the wet dust removing device of the embodiment may further include a temperature vibration parameter detecting device 85; the measurement and control system further comprises a temperature vibration monitoring unit 95, wherein the temperature vibration monitoring unit 95 is connected with the temperature vibration parameter detection device 85 and used for detecting temperature vibration parameters and stopping or starting the motor according to the detected temperature vibration parameters.
The temperature vibration parameter detection device is any one or combination of more than one of the following items: the device comprises a fan bearing temperature detection device, a motor winding temperature detection device, a motor bearing vibration detection device and a motor rotating speed steering detection device.
Preferably, the fan bearing temperature detection device, the motor bearing temperature detection device and the motor winding temperature detection device are respectively Pt100 thermistor temperature sensors; the motor bearing vibration detection device is a quartz or ceramic vibration acceleration sensor; the motor rotating speed steering detection device comprises a photoelectric rotating speed sensor.
This embodiment wet dust collecting equipment carries out on-line monitoring and control to the operating condition of motor, fan through the bearing temperature, motor winding temperature, the vibration of motor bearing, the motor rotational speed of real-time supervision fan and motor turns to, has motor, fan work protect function, makes the operation of equipment safer more high-efficient.
If the fan and the motor are monitored to have problems, warning is given, if the temperature is too high and the vibration is too large and the duration is too long, the motor is automatically stopped, an alarm lamp flickers, and the current fault is displayed on a touch screen; after the fault is removed, the operator can continue to operate by resetting and restarting.
It should be noted that the booster pump control unit 91, the motor start/stop control unit 92, the fan operation monitoring unit 93, the motor operation monitoring unit 94, and the temperature vibration monitoring unit 95 are respectively hardware units that are independently arranged, and may be implemented in a combined manner as needed, and the combined functions are implemented.
Further, the booster pump control unit 91, the motor start/stop control unit 92, the fan operation monitoring unit 93, the motor operation monitoring unit 94, and the temperature vibration monitoring unit 95 may be implemented by combining a software manner on the basis of a hardware unit.
In a specific application, the wet dust removal device of the embodiment further comprises a control cabinet 10 and a touch screen; the detection device and the measurement and control system are arranged in the control cabinet; the touch screen is connected with the measurement and control system; the touch screen is arranged on a panel of the control cabinet or in the control cabinet.
Preferably, the touch screen is a Human Machine Interface (HMI) having both user input and display functions.
The wet dust removal equipment has high dust removal efficiency, and the treatment effect on absorbable dust below 10 mu m is as high as more than 99 percent, so that the harm of silicosis can be effectively avoided; the method has wide application range and can be used for mine, thermoelectricity, steel, port, ore crushing and the like. And is capable of handling hot, wet gas streams, gas streams containing sticky or explosive dusts, such as coal transportation, light metal grinding and polishing, food production, etc.
Except the fan, other parts of the wet dust removal equipment of the embodiment have no rotating parts, so that the wet dust removal equipment can adapt to various severe environments. The common blockage problem of other types of wet dust collectors rarely occurs, and the problem of instability of a matched fan caused by water carrying operation does not exist; the occupied area is small, the equipment investment is low, and the maintenance cost is low; convenient operation and full-automatic control.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (9)
1. A wet dust removing device is characterized in that: comprises a water supply pipe, a coalescer, a fan, a cyclone separator, a motor for driving the fan, a booster pump, a detection device and a measurement and control system;
the coagulator comprises a contraction pipe, a throat pipe and a diffusion pipe which are connected in sequence;
the water supply pipe is arranged on the side wall of the shrinkage pipe;
the water supply pipe is provided with a nozzle which is arranged in the contraction pipe;
the fan comprises a fan air inlet and a fan air outlet, the fan air inlet is connected with the diffusion pipe, and the fan air outlet is connected with the air inlet of the cyclone separator;
under the action of negative pressure generated by the fan, dust-containing gas enters the contraction pipe and is mixed with atomized water drops sprayed by the nozzle in the contraction pipe to obtain a mixture of the dust-containing gas and the atomized water drops, and the mixture sequentially passes through the throat pipe and the diffusion pipe, then enters the fan, enters the cyclone separator through the fan and is separated into gas and slurry;
the detection device comprises a water pressure detection device and a water flow switch;
the water flow switch and the water pressure detection device are respectively arranged in the water supply pipe;
the booster pump is connected with the water supply pipe;
the measurement and control system comprises a booster pump control unit which is respectively and electrically connected with the water pressure detection device and the booster pump;
the measurement and control system also comprises a motor start-stop control unit which is respectively electrically connected with the water flow switch and the motor;
the water flow switch detects whether water is delivered into the water supply pipe:
if yes, the water pressure detection device monitors the water pressure condition in the water supply pipe:
if the water pressure is in the allowable range, the motor is started,
if the water pressure is lower than the required minimum pressure, the booster pump is started to boost the water from the outer pipe network until the water pressure is in an allowable range.
2. A wet scrubbing apparatus as claimed in claim 1, wherein: a plurality of concentric circular arc baffles are arranged in the cyclone separator.
3. A wet scrubbing apparatus as claimed in claim 1, wherein: the device also comprises an induced draft pipe and a water receiving device; a backflow isolation groove is formed in the side wall of the bottom of the induced duct; the water receiving device is hermetically arranged on the outer wall of the induced draft tube and corresponds to the backflow isolation groove in position.
4. A wet scrubbing apparatus as claimed in claim 1, wherein: the spray direction of the nozzle is parallel to the central axis of the coalescer.
5. A wet scrubbing apparatus as claimed in claim 1, wherein: the fan also comprises a shell and a hub provided with a plurality of blades; the blades are uniformly distributed along the circumferential direction of the hub; the shell comprises a front side plate, a rear side plate and a volute side wall positioned between the front side plate and the rear side plate; the air inlet of the fan is vertical to the end face of the hub; the fan air outlet is arranged at the tail end of the side wall of the volute.
6. A wet scrubbing apparatus as claimed in claim 1, wherein: the detection device also comprises a fan operation parameter detection device arranged in the air inlet and/or the air outlet of the fan; the measurement and control system further comprises a fan operation monitoring unit, wherein the fan operation monitoring unit is connected with the fan operation parameter detection device and used for detecting fan operation parameters and stopping the motor or changing the rotating speed of the motor according to the detected fan operation parameters.
7. A wet scrubbing apparatus as claimed in claim 1, wherein: the detection device also comprises a motor operation parameter detection device; the measurement and control system further comprises a motor operation monitoring unit, and the motor operation monitoring unit is connected with the motor operation parameter detection device and used for detecting the motor operation parameters and stopping or starting the motor according to the detected motor operation parameters.
8. A wet scrubbing apparatus as claimed in claim 1, wherein: the detection device also comprises a temperature vibration parameter detection device; the measurement and control system further comprises a temperature vibration monitoring unit, wherein the temperature vibration monitoring unit is connected with the temperature vibration parameter detection device and used for detecting temperature vibration parameters and stopping or starting the motor according to the detected temperature vibration parameters.
9. A wet scrubbing apparatus as claimed in claim 1, 6, 7 or 8, wherein: the device also comprises a control cabinet and a touch screen; the detection device and the measurement and control system are arranged in the control cabinet; the touch screen is connected with the measurement and control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610318009.6A CN105771496B (en) | 2016-05-12 | 2016-05-12 | Wet-scrubbing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610318009.6A CN105771496B (en) | 2016-05-12 | 2016-05-12 | Wet-scrubbing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105771496A CN105771496A (en) | 2016-07-20 |
| CN105771496B true CN105771496B (en) | 2018-06-05 |
Family
ID=56379741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610318009.6A Active CN105771496B (en) | 2016-05-12 | 2016-05-12 | Wet-scrubbing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105771496B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617299A (en) * | 2017-10-31 | 2018-01-23 | 湖北力帝机床股份有限公司 | Disintegrating machine fire prevention dust pelletizing system |
| CN109833707A (en) * | 2017-11-27 | 2019-06-04 | 黄瑃商 | Pernicious gas trapping and powder dust separating device |
| CN110270187A (en) * | 2019-07-09 | 2019-09-24 | 青岛港湾职业技术学院 | Dust-collecting equipment is used in a kind of new and effective glass polishing |
| CN114712966B (en) * | 2022-01-26 | 2023-05-16 | 南京信息工程大学 | Foam and aerosol integrated generating device for dust fall and use method thereof |
| CN119607740A (en) * | 2024-09-05 | 2025-03-14 | 中煤科工集团重庆研究院有限公司 | Dust collector fault self-diagnosis system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529090Y (en) * | 2002-02-08 | 2003-01-01 | 王晓利 | Wet desulfurization cleaning device for fume of boiler |
| CN201379992Y (en) * | 2009-03-17 | 2010-01-13 | 杨暑燕 | Multiple baffle demister |
| CN201613092U (en) * | 2010-03-09 | 2010-10-27 | 江苏智思机械集团有限公司 | Wet dust removal system |
| CN202289778U (en) * | 2012-03-07 | 2012-07-04 | 邹城市佳奇环保工程有限公司 | Venturi dust catcher for filter material layer |
| RU2482902C1 (en) * | 2012-02-24 | 2013-05-27 | Олег Савельевич Кочетов | Venturi scrubber |
| CN204913644U (en) * | 2015-08-14 | 2015-12-30 | 上海恩太设备技术有限公司 | Wet dust collector for shot -blasting machine |
| CN105477960A (en) * | 2016-01-06 | 2016-04-13 | 中南大学 | Composite emulsification type high-efficiency wet dust remover |
| CN205627434U (en) * | 2016-05-12 | 2016-10-12 | 北京柯林泰克环保科技有限公司 | Wet -scrubbing equipment |
-
2016
- 2016-05-12 CN CN201610318009.6A patent/CN105771496B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529090Y (en) * | 2002-02-08 | 2003-01-01 | 王晓利 | Wet desulfurization cleaning device for fume of boiler |
| CN201379992Y (en) * | 2009-03-17 | 2010-01-13 | 杨暑燕 | Multiple baffle demister |
| CN201613092U (en) * | 2010-03-09 | 2010-10-27 | 江苏智思机械集团有限公司 | Wet dust removal system |
| RU2482902C1 (en) * | 2012-02-24 | 2013-05-27 | Олег Савельевич Кочетов | Venturi scrubber |
| CN202289778U (en) * | 2012-03-07 | 2012-07-04 | 邹城市佳奇环保工程有限公司 | Venturi dust catcher for filter material layer |
| CN204913644U (en) * | 2015-08-14 | 2015-12-30 | 上海恩太设备技术有限公司 | Wet dust collector for shot -blasting machine |
| CN105477960A (en) * | 2016-01-06 | 2016-04-13 | 中南大学 | Composite emulsification type high-efficiency wet dust remover |
| CN205627434U (en) * | 2016-05-12 | 2016-10-12 | 北京柯林泰克环保科技有限公司 | Wet -scrubbing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105771496A (en) | 2016-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105771496B (en) | Wet-scrubbing equipment | |
| CN107213739B (en) | Novel high-efficient combined type wet dust collector in colliery | |
| CN205627434U (en) | Wet -scrubbing equipment | |
| EP1027130A1 (en) | Separation of solid particulate materials from fluid streams | |
| US3168596A (en) | Gas washing systems providing high velocity spray pattern of liquid droplets | |
| CN205164414U (en) | Wet -type whirlwind water curtain dust collector | |
| US7077886B2 (en) | Emission control device and method of operation thereof | |
| CN110026035A (en) | A kind of wet process polishing dust remover and its treatment process with explosion prevention function | |
| CN214680816U (en) | A double-barrel series cyclone separator | |
| CN207445851U (en) | A kind of New Coal Mine efficient composite wet scrubber | |
| CN215844633U (en) | Particle collection device | |
| CN113164865A (en) | Exhaust gas purification device and exhaust gas harmful removal device using same | |
| CN116116151A (en) | A two-stage spray wet dust removal equipment | |
| US3347535A (en) | Gas-liquid contact apparatus | |
| JPH06213593A (en) | Method for cleaning boiler and dust removing device used in this method | |
| US3444669A (en) | High capacity gas washer | |
| US2811222A (en) | Apparatus and process for collecting fine particles | |
| KR0133239B1 (en) | Centrifugal dust collector utilizing electric power | |
| JP2926314B2 (en) | Negative ion generator | |
| JP2000288427A (en) | Cyclone separating device | |
| CN112370930A (en) | Fog-dust compatible multistage centrifugal separation dust remover and dust removing method thereof | |
| CN112221297A (en) | Twin-tub series-type cyclone separator | |
| KR200150693Y1 (en) | Dust collector | |
| CN215692853U (en) | Dust treatment system of shot blasting machine | |
| JPH0639774Y2 (en) | Exhaust gas purification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |