CN111361958A - High-speed water mist system for return dust suppression of transfer point of belt conveyor and cleaning of surface of belt - Google Patents
High-speed water mist system for return dust suppression of transfer point of belt conveyor and cleaning of surface of belt Download PDFInfo
- Publication number
- CN111361958A CN111361958A CN201811590634.1A CN201811590634A CN111361958A CN 111361958 A CN111361958 A CN 111361958A CN 201811590634 A CN201811590634 A CN 201811590634A CN 111361958 A CN111361958 A CN 111361958A
- Authority
- CN
- China
- Prior art keywords
- water
- water mist
- flow
- belt
- nozzle
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/22—Cleaning devices comprising fluid applying means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
- B65G69/188—Preventing escape of dust by means of non-sealed systems with spraying means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The invention discloses a high-speed water mist system which is used for controlling the dust dissipation of a belt return stroke at a transfer point of a belt conveyor and can carry out water mist flushing and cleaning on a belt surface; the water mist flow sprayed by the system can effectively and evenly adjust the humidity of the conveyed materials; the water mist flow completely flows into the material, and the water can not be frozen during low-temperature operation in winter. The system comprises a pump, an overflow valve, a safety valve, a pipeline, an automatic control valve, a hose, a nozzle, a control box, a manual control valve, a pipeline distributor, a pressure gauge and the like, wherein the nozzle is arranged on the periphery of an equipment housing to form high-speed, continuous and compact water mist flow, the dust-containing air flow is induced, intercepted, sucked and trapped, and water drops for trapping dust particles finally enter materials through the water flow entrainment effect, so that the effect of controlling the dust dissipation is really achieved. The invention has simple equipment and low operation and maintenance cost, can resist the influence of airflow disturbance and is suitable for various dust concentration change conditions.
Description
Technical Field
The invention relates to a method for controlling dust dissipation at a belt return outlet of a transfer point of a dry bulk cargo belt conveyor by adopting high-speed and compact water mist flow; the surface of the belt is washed by water flow, so that the belt conveyor is prevented from spilling materials along the line and polluting the environment; simultaneously, controlling water mist flow to be uniformly mixed into the material flow so as to effectively adjust the humidity of the conveyed material; the water mist flow is completely sealed in the equipment housing, and the water can not be frozen during low-temperature operation in winter.
The system comprises a pump, an overflow valve, a safety valve, a pipeline, an automatic control valve, a hose, a nozzle, a control box, a manual control valve, a pipeline distributor, a pressure gauge and the like, wherein the nozzle is arranged on the periphery of an equipment housing to form high-speed, continuous and compact water mist flow, the dust-containing air flow is induced, intercepted, sucked and trapped, and water drops for trapping dust particles finally enter materials through the water flow entrainment effect, so that the effect of controlling the dust dissipation is really achieved.
By effectively setting the angle of the nozzle, the water mist flow can wash the belt surface and then flow into the material, the invention can replace the function of a contact type mechanical scraper sweeper, can not generate the phenomenon of cleaning efficiency reduction caused by contact abrasion, and can maintain the long-term stable cleaning effect.
The water mist of the invention is completely and uniformly mixed into the material, and the humidity of the material is balanced and adjusted, so as to inhibit the dust from flying from the material.
The invention has simple equipment and low operation and maintenance cost, can resist the influence of airflow disturbance, is suitable for various dust concentration change conditions, can not freeze low-temperature water mist, and meets the low-temperature use condition in winter.
Background
At present, no effective dust removal measure is set for dust dissipation at the return stroke of the belt, and dust is uncontrollably overflowed into the atmosphere to pollute the environment.
The return stroke area material of belt feeder uses mechanical scraper blade to strike off usually, because influence such as the belt surface is uneven, belt vibration, the scraper blade can not guarantee to carry out effective contact completely with the belt face, scrapes the actual efficiency of cleaning of board-like sweeper and is not high.
The belt feeder return stroke blanking along the line is serious, need clean through the manual work, and the manual work cleans the process and brings the secondary pollution raise dust.
The high-speed water mist flow system can effectively collide water drops with dust particles, and the dust is captured by the water drops and returns to the material again.
The water is uniformly mixed in the material, so that the dust particles can be effectively inhibited from escaping from the material.
The washing force of the water flow can wash the materials adhered to the surface of the belt and fall back to the material flow, and due to the non-contact effect, the cleaning effect is not affected by the flatness and vibration of the belt, and the problem of abrasion is avoided.
Disclosure of Invention
The high-speed water mist flow restraining system adopts high-pressure water flow, atomizes the water flow into water drops with the particle size of 10-1000 mu m through the nozzle, and sprays at high speed to form dense water mist curtain flow.
The high-speed water mist flow with the induction function can effectively intercept the dust-containing air flow, water drops with the optimal diameter can effectively collide with dust particles, the dust particles suspended in the air flow are captured in the water drops, and the air becomes clean. These trapped particles re-enter the material stream due to high velocity water flow entrainment and gravity.
The surface of the belt is cleaned by using the high-speed scouring force of part or all of the water mist flow, and the cleaned water mist flow falls into the material.
The water mist flow with good atomization and stable flow is uniformly mixed with the material flow, so that the moisture is uniformly distributed in the material, the humidity of the material is kept balanced, and the balance of the humidity in the material is favorable for inhibiting the dissipation of dust from the material.
The dust falls into the material completely and can not fly into the air. The water flow enters the material evenly, and the low-temperature icing phenomenon in winter can be avoided.
The technical scheme adopted by the invention for solving the technical problems is as follows: the high-pressure single-phase hydraulic spraying technology is adopted, and comprises a pump, an overflow valve, a safety valve, an automatic control valve, a single-phase nozzle, a control box, a pipeline, a hose, a manual control valve, a distributor, a pressure gauge and the like. The high-pressure water flow generated by the pump is conveyed to the nozzles through a pipeline, each nozzle is provided with an independent automatic control valve, and the nozzles can generate high-speed, continuous, compact and water mist flow with certain particle size.
The single or a plurality of nozzles are uniformly arranged on the lower part or the side wall of the housing of the belt conveyor equipment, so that the water mist flow is ensured to completely seal a dust-containing air flow movement space; the arrangement of the nozzles is favorable for the induction of water mist flow on dust-containing air flow and promotes the collision of water drops and dust particles; the spray nozzles can be arranged to flush the surface of the belt by water mist flow, so that materials adhered to the surface of the belt fall off into the material flow channel.
In the water mist flow system, the pump provides water flow power, the pressure at the outlet of the pump is more than 1.0MPa, and high-pressure water flow is generated, so that the nozzle sprays water mist flow with high speed, compactness and certain particle size distribution. The pump outlet is connected with an automatic control valve and a nozzle through pipelines to provide high-pressure continuous water flow for the nozzle.
In the water mist flow system, the outlet pressure and the flow rate of the pump can be automatically controlled and adjusted through the control box.
In the water mist flow system, the outlet pipeline of the pump is provided with the overflow valve, the safety valve and the pressure gauge, when water flow stops jetting, the overflow valve is automatically opened, and water flow flows out through the bypass, so that energy consumption can be reduced. When the pressure of the pipeline system is too high, the safety valve automatically opens the pressure relief water flow, so that the safety of a pipe network and equipment is ensured.
In the water mist flow system, each branch pipe is provided with the manual control valve, the automatic control valve and the pressure gauge and is connected with the nozzles through the hoses, and the automatic control valve can independently control each nozzle according to requirements.
The spray angle of the nozzle is 20-90 degrees, and the nozzle is a single-phase hydraulic (water) nozzle and comprises a solid conical nozzle, a hollow conical nozzle and a fan-shaped nozzle.
The nozzle installation angle Q, the scope is 0 ~ 180, through the nozzle can produce the water smoke stream of high-speed, fine and close, certain particle diameter, certain width, and water smoke curtain angle is adjustable, forms effectual water smoke stream, does benefit to the dust grain that is caught and subsides.
The invention has the advantages that the water mist flow of high-speed, compact and tiny water particles can really intercept, entrain, capture and settle dust particles, so that the dust particles settle back to the surface of the material and are separated from the air; the water mist flow can effectively clean the surface of the belt; and can be convenient realize automatic control, adapt to the dust concentration change influence, satisfy the belt face and wash the requirement.
The invention can truly and effectively return the trapped dust particles to the material again through the water flow entrainment and the gravity action.
The invention can uniformly mix and control the water content of the material flow.
The invention can effectively clean the materials adhered to the surface of the belt.
The invention can be operated in all weather, and has no low temperature icing phenomenon in winter.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a high velocity water mist flow system;
FIG. 2 is a lower wall arrangement view of a nozzle belt conveyor housing;
FIG. 3 is a side wall arrangement of the nozzle belt housing;
in the figure, 1 is a pump, 2 is an overflow valve, 3 is a safety valve, 4 is a pipeline, 5 is an automatic control valve, and 6 is a nozzle.
Detailed Description
The high-speed water mist system for return dust suppression of the transfer point of the belt conveyor and belt surface cleaning comprises a pump 1, an overflow valve 2, a safety valve 3, a pipeline 4, an automatic control valve 5, nozzles 6, a control box, a manual control valve, a pipeline distributor, a pressure gauge and the like, wherein the number of the nozzles is determined according to the size of the belt conveyor.
As shown in fig. 1, 2 and 3, water flow is pressurized to each nozzle 6 through a pump 1, an overflow valve 2 is installed at the outlet of the pump, when the nozzles 6 stop injecting, the overflow valve 2 is automatically opened, and water flows back to the water inlet; a safety valve 3 is arranged at the outlet of the pump, and when the pressure of the pipe network is too high, the safety valve 3 automatically opens to release water flow; the water fog flow ejected by the nozzle forms high-speed water fog curtain flow at the return stroke of the belt, and the water flow and the pressure can be automatically controlled and adjusted through the control box.
[ example 1 ]
As shown in figure 2, the nozzles 6 are arranged on the wall surface of the equipment at the lower part of the belt conveyor housing, the arrangement distance w of the nozzles is 0.1-1.5 m according to different widths, continuous and seamless water mist curtain flow is formed by spraying, and the flow cross section is completely closed. The angle Q range of the installation position of the nozzle 6 is 0-180 degrees, an optimal spraying angle can be formed, and dust particles are intercepted and trapped under the action of high-speed water mist flow and finally enter materials along with the movement of water flow. The water flow sprayed by the nozzle washes the surface of the belt, and materials adhered to the belt are cleaned and fall back into the material flow.
[ example 2 ]
As shown in figure 3, the nozzles 6 are arranged on the side wall surface of the belt conveyor housing, continuous and seamless water mist curtain flow is formed by spraying, the flow cross section is completely closed, and the angle Q of the installation position of the nozzles 6 ranges from 0 degree to 180 degrees.
Claims (10)
1. The belt conveyor transfer point return dust suppression and belt surface cleaning high-speed water mist system adopts water drops with optimal grain size running at high speed to induce and intercept dust-containing airflow, collide and capture dust particles to enter the water drops, and the dust-containing water drops settle back to the material due to water flow movement or gravity; water is uniformly mixed in the materials to adjust the water content in the materials, so that the dust of the materials can be inhibited; meanwhile, the surface of the belt is washed by high-speed water flow to clean the adhesive on the surface of the belt; the water mist completely enters the material, the surrounding environment is not affected, and the phenomenon of icing at low temperature in winter does not occur.
2. The high-speed water mist system comprises a nozzle, a pump, an overflow valve, a safety valve, a pipeline, an automatic control valve, a control box, a manual valve, a hose and the like.
3. Water mist system according to claim 1 or 2, characterized in that: the water mist flow generated by the nozzle can effectively intercept dust-containing airflow generated by the return stroke of the belt, and meanwhile, the water mist flow can flush the surface of the belt.
4. Water mist system according to claim 1 or 2, characterized in that: the nozzles are uniformly arranged on the lower wall surface of the closed housing of the belt conveyor or on the side wall surface of the closed housing.
5. Water mist system according to claim 1 or 2, characterized in that: the outlet operating pressure of the pump is more than or equal to 1.0 MPa. The pressure and flow of the pump can be automatically controlled and adjusted.
6. Water mist system according to claim 1 or 2, characterized in that: the nozzle is a single-phase hydraulic (water) nozzle, and the spraying angle is 20-90 degrees.
7. The nozzle of claim 6, wherein: can generate high-speed and compact water mist flow with the particle size distribution of 10-1000 mu m.
8. The water mist flow system of claim 1 or 2, wherein: each branch pipe is provided with an automatic control valve which is connected with the nozzle through a hose or a hard pipe.
9. The water mist flow system of claim 1 or 2, wherein: the nozzle installation angle is adjustable, the range is 0-180 degrees, and the angle of the formed spray water curtain flow is adjustable.
10. The water mist flow system of claim 1 or 2, wherein: the surface drying and dewatering equipment after the belt is cleaned by water comprises but is not limited to a scraper wiper, a cold air or hot air water blowing device, a roller water scraping device and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811590634.1A CN111361958A (en) | 2018-12-26 | 2018-12-26 | High-speed water mist system for return dust suppression of transfer point of belt conveyor and cleaning of surface of belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811590634.1A CN111361958A (en) | 2018-12-26 | 2018-12-26 | High-speed water mist system for return dust suppression of transfer point of belt conveyor and cleaning of surface of belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111361958A true CN111361958A (en) | 2020-07-03 |
Family
ID=71202119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811590634.1A Pending CN111361958A (en) | 2018-12-26 | 2018-12-26 | High-speed water mist system for return dust suppression of transfer point of belt conveyor and cleaning of surface of belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111361958A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322270A (en) * | 1976-08-11 | 1978-03-01 | Kobe Steel Ltd | Meth od for transporting iron ores on ship |
| JPS5580629A (en) * | 1978-12-08 | 1980-06-18 | Toa Nenryo Kogyo Kk | Dust preventive method and device |
| CN102874615A (en) * | 2012-10-22 | 2013-01-16 | 大唐甘肃发电有限公司 | Dust suppression and fall system used in process of conveying high-dust material by belt type conveyor |
| CN203044225U (en) * | 2012-12-24 | 2013-07-10 | 李宝庆 | Aerial fog dust suppression device of transfer station microcomputer |
| CN206842424U (en) * | 2017-05-02 | 2018-01-05 | 山东隆源橡胶有限公司 | Mine conveyer belt detects zone face repair apparatus in real time |
| CN108939754A (en) * | 2017-05-27 | 2018-12-07 | 上海嘉怡环保设备工程有限公司 | The high speed water veil stream inhibition system that open space dust overflows scattered |
-
2018
- 2018-12-26 CN CN201811590634.1A patent/CN111361958A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322270A (en) * | 1976-08-11 | 1978-03-01 | Kobe Steel Ltd | Meth od for transporting iron ores on ship |
| JPS5580629A (en) * | 1978-12-08 | 1980-06-18 | Toa Nenryo Kogyo Kk | Dust preventive method and device |
| CN102874615A (en) * | 2012-10-22 | 2013-01-16 | 大唐甘肃发电有限公司 | Dust suppression and fall system used in process of conveying high-dust material by belt type conveyor |
| CN203044225U (en) * | 2012-12-24 | 2013-07-10 | 李宝庆 | Aerial fog dust suppression device of transfer station microcomputer |
| CN206842424U (en) * | 2017-05-02 | 2018-01-05 | 山东隆源橡胶有限公司 | Mine conveyer belt detects zone face repair apparatus in real time |
| CN108939754A (en) * | 2017-05-27 | 2018-12-07 | 上海嘉怡环保设备工程有限公司 | The high speed water veil stream inhibition system that open space dust overflows scattered |
Non-Patent Citations (1)
| Title |
|---|
| 郝玉柱: "《矿尘防治》", 31 May 2011, 煤炭工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104667673B (en) | Foam Water-fog dusting apparatus | |
| CN105346985B (en) | Belt feeder micron-sized dry fog dust inhibitor | |
| KR20180009906A (en) | conveyor belt cleaning system with air and dry water spray devices | |
| CN202176553U (en) | Online cleaning device of centrifugal compressor | |
| CN107128645B (en) | A kind of closed control dust pelletizing system of belt conveyor transfer point and dust removal method | |
| CN203294735U (en) | Single-fluid and dual-fluid combination dust removal device structure | |
| CN206068799U (en) | Belt feeder cleaning device and belt feeder | |
| CN111361958A (en) | High-speed water mist system for return dust suppression of transfer point of belt conveyor and cleaning of surface of belt | |
| CN111362023A (en) | High-speed water mist system for dust suppression and grid material accumulation prevention of unloading and dumping machine of dry bulk cargo conveying railway | |
| CN211687478U (en) | Defeated coal transfer point presses down dirt system | |
| CN202315598U (en) | Dust catcher | |
| WO2009083634A1 (en) | Method for cleaning of a powder coating housing and a powder coating housing | |
| CN215100275U (en) | Automatic water mist type cleaning and dust falling device of belt conveyor | |
| CN207684547U (en) | A kind of bituminous mixing plant discharging dust falling system | |
| CN203874924U (en) | Absorption type anti-blocking nozzle | |
| CN206203332U (en) | A kind of sticky material Belt Conveying noncontact cleaning plant | |
| CN205221946U (en) | Automatic spray little fog and press down dirt system and rubber belt conveyor | |
| CN108057299A (en) | A kind of bituminous mixing plant dust falling system | |
| CN210393015U (en) | Belt conveying device with blanking dustproof mechanism | |
| CN110271841B (en) | Unpowered dust removal baffle box equipment | |
| CN209490976U (en) | A kind of metallic conduit valve surface spray-painting plant | |
| JP3272201B2 (en) | Conveyor belt surface cleaning device | |
| CN205127621U (en) | Novel water smoke dust collector of ship unloaders | |
| CN220925450U (en) | Blast furnace grain slag conveying adhesive tape cleaning device | |
| CN217807050U (en) | Inclined belt conveyor and return segment rubber belt cleaning equipment thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200703 |
|
| RJ01 | Rejection of invention patent application after publication |