CN110975479A - Dust suppression device and using method - Google Patents
Dust suppression device and using method Download PDFInfo
- Publication number
- CN110975479A CN110975479A CN201911035159.6A CN201911035159A CN110975479A CN 110975479 A CN110975479 A CN 110975479A CN 201911035159 A CN201911035159 A CN 201911035159A CN 110975479 A CN110975479 A CN 110975479A
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- China
- Prior art keywords
- spraying
- dust suppression
- canvas
- dust
- water
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- 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
- B01D47/08—Spray cleaning with rotary nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/26—Hoppers, i.e. containers having funnel-shaped discharge sections
Abstract
The invention discloses a dust suppression device and a using method thereof, and aims to provide a dust suppression device which is suitable for the actual production condition of a stock yard and has an obvious dust suppression effect and a using method thereof. The dust suppression device comprises a movable canvas enclosure and a spraying device. The use method of the dust suppression device comprises the following steps: canvas enclosure adjustment, water quality modification, tilting type rotary nozzle spraying angle adjustment and atomization spraying; the method specifically comprises the following steps: before the unloading operation is carried out, the movable canvas enclosure is adjusted within the range of 0-90 degrees, so that the windward resistance of the canvas enclosure is reduced as much as possible, and meanwhile, the wind direction is dredged to avoid dust convolution; adjusting the spraying angle of a tilting rotary nozzle of the spraying device according to the type of the materials; starting the booster pump, and spraying water with a spray head of 4-6.5m3The flow rate of/h is atomized and sprayed out. The technical scheme of the invention can inhibit the dust raising in the stock groundThe unloading efficiency of the stock ground is improved, the effect is obvious, and water resources are saved.
Description
Technical Field
The invention relates to the technical field of equipment, in particular to a dust suppression device and a using method thereof.
Background
Semi-coke, iron ore, soft coal, anthracite and the like are all commonly used industrial raw materials. When the goods are unloaded, the goods are grabbed by mainly depending on the unloading hopper and are moved to the upper part of the hopper for putting; the unloaded raw materials can generate a large amount of dust instantly, so that more dust is gathered in the air in a short time, the air quality is damaged, and the environment and the health of people are seriously harmed.
At present, the common dust removal modes of a raw material yard mainly comprise the following two modes: the first is to spray water to remove dust by a fixed spray device or a sprinkler or a high-pressure gun on site, wherein tap water or reclaimed water is used as a water source; the second is to build a dust screen around the hopper.
In a raw material yard, due to the particularity of loading and unloading of raw materials such as semi coke, mineral powder and the like, the dust pollution of the yard caused by the industrial raw materials cannot be fundamentally solved by simply depending on the traditional dust suppression method. In addition, due to the particularity of the geographical position of the raw material loading and unloading yard, the working condition is very easily interfered by severe weather during loading and unloading; the loss of dust is aggravated due to the fact that the wind direction is not constant and the wind speed is high, a series of problems of environmental protection, health and the like are caused, and the loading and unloading efficiency of a raw material yard is reduced.
Disclosure of Invention
In order to solve the problems, the technical scheme of the invention aims to provide a dust suppression device which is suitable for the storage yard weather and has an obvious dust suppression effect on an operation site and a using method thereof. The technical scheme adopted for realizing the purpose of the invention is as follows: a dust suppression device comprises a movable canvas enclosure and a spraying device; the movable canvas fence comprises a metal bracket, thickened canvas and a movable bolt tip; the metal bracket is fixed on the upper edge of the hopper through a movable bolt pin and penetrates through the sleeve opening of the thickened canvas, so that the height of the enclosure of the hopper is increased; before the unloading operation is carried out, the movable canvas enclosure is adjusted within the range of 0-90 degrees, so that the windward resistance of the canvas enclosure is reduced as much as possible, and meanwhile, the wind direction is dredged to avoid dust convolution; the spraying device comprises a tilting rotary spray head, a water delivery pipe, a booster pump, an external water tank, a liquid storage tank and a stirrer; the surface tension weakening agent is stored in the liquid storage tank, the liquid storage tank is connected with an external water tank, a stirrer is arranged in the external water tank, the water outlet of the water tank is connected with the water inlet of the booster pump through a water delivery pipe, and the water outlet of the booster pump is connected with the tilting rotary spray head through a spray pipeline; the spraying angle of the tilting rotary nozzle is adjusted within the range of 30-45 degrees according to the specific gravity of the materials.
A method of using a dust suppression apparatus, the steps comprising: before the unloading operation is carried out, the movable canvas enclosure is adjusted within the range of 0-90 degrees; adjusting the spraying angle of the tilting rotary spray head within the range of 30-45 degrees according to the specific gravity of the materials; starting a booster pump, and atomizing and spraying the spray liquid at a flow rate of 4-6.5m3/h by using a tilting type rotary spray head; carrying out unloading operation; and after the discharging operation is finished, finishing spraying and closing the booster pump.
Preferably, the main components of the spray liquid are water and surface tension weakening agent isomeric alcohol ether, and the mixture is prepared according to the proportion of adding 0.7-1kg isomeric alcohol ether into each ton of water.
Preferably, the spraying scheme of the invention is that ① coal powder, coke and other chemical raw fuels have a nozzle angle of 30-32 degrees and a spraying flow of 6-6.5m 3② lump ore, fine iron powder and other metal oxides, the angle of the spray head is set to 42-45 DEG, and the spray flow is 4-5m 3③ quartz sand, refractory material, etc. with 30-45 deg. of nozzle angle and 5-6m of spray flow rate3/h。
The design ideas of the components of the spray liquid and the spray scheme are explained as follows: in industrial production, the ingestion of elements such as alkali metal K, Na and the like should be avoided, and the influence of alkali metal circulation enrichment on production is prevented, so that the spray liquid containing the cation active agent component is not considered; from the viewpoint of environmental protection, SO2 -4The active agent can cause SO in the production process2Increased emissions, hence SO2 -4Spray solutions of type active agent components are not considered; in order to avoid water and soil pollution, harmless organic active agent isomeric alcohol ether is preferably considered as one of the components of the spray liquid.
The lighter the density of the material is, the easier the material is to form large-area smoke dust, the angle of the spray head is controlled to be 30-32 degrees, the maximum range of the material surface can be covered, and the flow is increased for dust fall; the density of the material is increased, more smoke dust is formed at the edge of the material pile, the angle of the spray head is adjusted to 42-45 degrees, and water can be saved under the condition of ensuring the dust settling effect by properly reducing the flow at the moment.
Compared with the prior art, the invention has the beneficial effects that: the equipment is simple, and the manufacturing cost is low; the effects of inhibiting dust raising of a stock ground and improving the unloading work efficiency of the stock ground are obvious; by optimizing the components of the spraying liquid, the angle of the tilting rotary spray head and the spraying flow, the running cost of the equipment is kept at a relatively low level under the condition of achieving the optimal dust suppression effect.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the apparatus of the present invention;
FIG. 2 is a top view of the apparatus of the present embodiment;
description of reference numerals: 1-a metal support; 2-thickening canvas; 3, water conveying pipe; 4, a liquid storage tank; 5, a stirrer; 6, arranging an external water tank; 7, a booster pump; 8-movable bolt pin; 9-a spray pipeline; 10-tilting rotary sprayer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
A dust suppressing device comprises a movable canvas enclosure and a spraying device. The movable canvas fence comprises a metal bracket 1, thickened canvas 2 and a movable bolt tip 8; the metal bracket 1 is fixed on the upper edge of the hopper through a movable bolt pin 8, and the metal bracket 8 passes through the sleeve opening of the thickened canvas 2; the spraying device comprises a tilting rotary spray head 10, a water delivery pipe 3, a booster pump 7, an external water tank 6, a stirrer 5 and a liquid storage tank 4; the surface tension weakening agent is stored in the liquid storage tank 4, the liquid storage tank 4 is connected with the external water tank 6, the stirrer 5 is installed in the external water tank 4, the water outlet of the external water tank 4 is connected with the water inlet of the booster pump 7 through the water conveying pipe 3, and the water outlet of the booster pump 7 is connected with the tilting rotary spray head 10 through the spray pipeline 9.
The discharging operation is carried out at the raw material wharf, and before the discharging operation is carried out, the movable canvas is enclosed by 90 degrees to be vertical to the upper edge of the hopper according to the on-site working condition, so that the problem that the large wind convolutes the raw material particles of the hopper is avoided;
modifying the water quality of the water for the spray liquid: the main components of the spray liquid are water and surface tension weakening agent isomeric alcohol ether, and the spray liquid is prepared according to the proportion of adding 0.8kg of isomeric alcohol ether into each ton of water on the same day.
According to different unloaded raw materials, correspondingly adjusting the angle and the spraying amount of the tilting rotary spray head; the raw material unloaded in the same day is chemical raw anthracite, so the angle of the tilting rotary nozzle is set to be 30 degrees, the spraying flow is 6.5m3/h, and the booster pump 7 is started to spray;
carrying out unloading operation; and after the discharging is finished, the booster pump 7 is closed to finish the spraying.
In the operation process, the dust suppression device does not influence the production operation, adapts to severe weather of windy weather of a stock yard, obviously shows pulverized coal dust around the hopper, has obvious dust suppression effect on the operation site, consumes less water and achieves the expected effect of the invention.
Claims (6)
1. A dust suppression device comprises a movable canvas enclosure and a spraying device, and is characterized in that: the movable canvas fence comprises a metal bracket (1), thickened canvas (2) and a movable bolt tip (8); the metal bracket (1) is fixed on the upper edge of the hopper through a movable bolt pin (8), and the metal bracket (1) passes through the looping of the thickened canvas (2); the spraying device comprises a tilting rotary spray head (10), a water delivery pipe (3), a booster pump (7), an external water tank (6) and a stirrer (5) and a liquid storage tank (4); the surface tension weakening agent is stored in the liquid storage tank (4), the liquid storage tank (4) is connected with an external water tank (6), a stirrer (5) is installed in the external water tank (6), the external water tank is connected with a water inlet of the booster pump through a water conveying pipe (3) by the aid of the stirrer (6), and a water outlet of the booster pump is connected with the tilting rotary spray head (10) through a spraying pipeline (9).
2. A dust suppression apparatus as claimed in claim 1, said canvas enclosure being freely reversible by 0-90 ° depending on the actual operating conditions.
3. A dust suppression device as claimed in claim 1, said tilting rotary sprayer (10) being tiltable in a vertical direction by 30-45 °.
4. A method of using a dust suppression apparatus, using the dust suppression apparatus of claims 1-3, characterized by: before the unloading operation is carried out, the movable canvas enclosure is adjusted within the range of 0-90 degrees; the spraying angle of the tilting rotary nozzle (10) is adjusted within the range of 30-45 degrees according to the specific gravity of the materials; starting a booster pump (7), and enabling the spray head to spray the spray liquid at a distance of 4-6.5m3Flow rate of/h is atomized and sprayed out; carrying out unloading operation; and after the discharging operation is finished, the spraying and the booster pump (7) are closed.
5. A method for using a dust suppressing device as claimed in claim 4, wherein the main components of the spray liquid are water and isomeric alcohol ether as surface tension weakening agent, and the ratio of 0.7-1kg isomeric alcohol ether added per ton water is adjusted.
6. A method of using a dust suppression apparatus according to claim 4, wherein: when the materials to be loaded and unloaded are chemical raw fuels such as coal powder, coke and the like, the spraying angle of the tilting rotary nozzle (10) is set to be 30-32 degrees, and the spraying flow is 6-6.5m3H; when the loading and unloading materials are metal oxides such as lump ore, fine iron powder and the like, the spraying angle of the tilting rotary nozzle (10) is set to be 42-45 degrees, and the spraying flow is 4-5m3H; if the loading and unloading materials are inorganic non-materials such as quartz sand, refractory materials and the like, the spraying angle of the tilting rotary nozzle (10) is set to be 30-45 degrees according to the specific gravity of the materials, and the spraying flow is 5-6m3/h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911035159.6A CN110975479A (en) | 2019-10-29 | 2019-10-29 | Dust suppression device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911035159.6A CN110975479A (en) | 2019-10-29 | 2019-10-29 | Dust suppression device and using method |
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| CN110975479A true CN110975479A (en) | 2020-04-10 |
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| CN201911035159.6A Pending CN110975479A (en) | 2019-10-29 | 2019-10-29 | Dust suppression device and using method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619969A (en) * | 2020-06-01 | 2020-09-04 | 锦华环保装备(山东)有限公司 | Large-scale coke steel sheet storehouse |
| CN112947145A (en) * | 2021-01-27 | 2021-06-11 | 兖州中材建设有限公司 | Automatic catch green mine spraying system of dust |
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| CN201268518Y (en) * | 2008-09-13 | 2009-07-08 | 兰州天际环境保护有限公司 | Counter spray type fugitive dust covering agent spraying apparatus |
| CN203889694U (en) * | 2014-04-28 | 2014-10-22 | 天津港焦炭码头有限公司 | Dust-suppressing ore unshipping and entrucking hopper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619969A (en) * | 2020-06-01 | 2020-09-04 | 锦华环保装备(山东)有限公司 | Large-scale coke steel sheet storehouse |
| CN112947145A (en) * | 2021-01-27 | 2021-06-11 | 兖州中材建设有限公司 | Automatic catch green mine spraying system of dust |
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Application publication date: 20200410 |
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| RJ01 | Rejection of invention patent application after publication |