CN115990543A - Clean production method for safely and efficiently reducing broken and screened dust - Google Patents
Clean production method for safely and efficiently reducing broken and screened dust Download PDFInfo
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- CN115990543A CN115990543A CN202310190439.4A CN202310190439A CN115990543A CN 115990543 A CN115990543 A CN 115990543A CN 202310190439 A CN202310190439 A CN 202310190439A CN 115990543 A CN115990543 A CN 115990543A
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Abstract
The invention discloses a clean production method for safely and efficiently reducing broken and screened dust, which comprises the following steps: dust generated by the work of the jaw crusher, the cone crusher and the vibrating screen is sucked into the dust remover by the dust hood, and the crushed products after the work of the jaw crusher and the cone crusher fall onto the belt of the first belt conveyor and the dust lifted by the belt is sucked into the dust remover by the dust hood; the dust entering the dust remover is settled under the action of self gravity and falls into the ore collecting pool from the sewage outlet of the dust remover; and (3) automatically flowing overflow water at the upper layer of the ore collecting tank to a reservoir, after the ore pulp at the bottom of the ore collecting tank is accumulated, conveying water in the reservoir to the ore collecting tank and pulping, automatically flowing ore pulp to a transfer tank, and conveying the ore pulp in the transfer tank to a production system. The invention has simple flow and high dust removal efficiency, realizes the effective control of dust discharge, combines the production water to make slurry, ensures that the collected dust enters a production system, improves the utilization rate of the dust and the production water, and saves resources and production cost.
Description
Technical Field
The invention belongs to the field of clean production, and particularly relates to a clean production method for safely and efficiently reducing broken and screened dust.
Background
The rapid development of industry tends to cause certain environmental pollution, and industries such as coal mine, cement, thermal power, chemical industry and the like can generate a large amount of dust in the production process, so that the working environment of the factory is polluted, and the physical health of workers is threatened. In this regard, the dust collector plays a very important role in the aspect of industrial production and environmental protection. Meanwhile, as national living standard is improved, the requirements of people on living environment are improved, and the national policy is also improved on the emission limit value of particulate matters, so that the requirements on the dust remover in production are higher and higher, and the traditional dust remover cannot meet the actual use requirements at present in a certain sense.
In the process of crushing, discharging and screening, the existing crushing and screening equipment is small in dust particle diameter, so that dust particles can be separated from stones and float in air, the air quality in the surrounding environment is poor, the dust particles are easily sucked into the body and damage the body of a worker to a certain extent, and the existing method generally adopts: 1. the fan leads the dust out of the working environment, or 2, water is sprayed to inhibit dust emission, but the dust led out of the working environment causes external environmental pollution, and the dust emission is easy to exceed the standard; meanwhile, both methods cause waste of stone dust resources, so that the practicability is poor.
Disclosure of Invention
The invention aims to solve the technical problems of providing a clean production method for safely and efficiently reducing the crushing and screening dust, which aims at the defects of the prior art, has the advantages of simple flow, high dust removal efficiency, effective control of dust emission, slurry making by combining production water, improvement of the utilization rate of the dust and the water, and resource and production cost saving.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a clean production method for safely and efficiently reducing crushing and screening dust comprises the following steps: dust generated by the work of the jaw crusher, the cone crusher and the vibrating screen is sucked into the dust remover through the dust hood and the pipeline, and meanwhile, crushed products after the work of the jaw crusher and the cone crusher fall onto a belt of the first belt conveyor, and the dust raised by the belt of the first belt conveyor is sucked into the dust remover through the dust hood and the pipeline; the dust entering the dust remover is settled under the action of self gravity and falls into the ore collecting pool from the sewage outlet of the dust remover; the upper overflow water of the ore collecting pond automatically flows into the water reservoir, after the ore pulp at the bottom of the ore collecting pond is accumulated to a certain degree, the water in the water reservoir is conveyed into the ore collecting pond so as to flush and make pulp, and then the pulp automatically flows into the intermediate transfer pond so as to convey the pulp in the intermediate transfer pond to a production system.
As a further improved technical scheme of the invention, the dust remover is a microporous membrane filter dust remover, and large-particle dust entering the microporous membrane filter dust remover is settled into a lower box body of the microporous membrane filter dust remover under the action of self gravity; the dust of granule gets into microporous membrane filter dust remover's microporous membrane along with the air current, under the pressure differential effect, the dust-laden air current filters on the microporous membrane, the air that filters clean is discharged through the air outlet of microporous membrane filter dust remover, the dust is held back on the microporous membrane, when the dust on microporous membrane surface gathers to certain thickness, the dust drops to the lower box by self gravity effect, the dust that glues on the microporous membrane drops to the lower box by compressed air jetting, the dust is all discharged from the drain of lower box bottom in the lower box, the dust falls into the sedimentation in the collection basin, the upper overflow water in collection basin is through flowing into the cistern, thereby the water in the collection basin is carried to the collection basin through the pump after the bottom ore pulp accumulates to a certain extent, thereby wash and make thick liquid to the ore pulp, then the ore pulp flows into the transfer pond through the pipeline, the ore pulp in the transfer pond is carried to production system through the pump again.
According to the technical scheme, a discharge port of the jaw crusher is communicated with a feed port of the vibrating screen through a first belt conveyor, a coarse particle discharge port of the vibrating screen is communicated with a feed port of the cone crusher through a second belt conveyor, and a discharge port of the cone crusher is communicated with a feed port of the vibrating screen through the first belt conveyor.
As a further improved technical scheme of the invention, a dust hood is communicated with a crushing cavity shell of the jaw crusher, a discharge opening of the jaw crusher is communicated with the dust hood, and the dust hood at the discharge opening of the jaw crusher is covered on a belt of the first belt conveyor.
As a further improved technical scheme of the invention, a dust hood is arranged above a feed inlet of the cone crusher, a discharge outlet of the cone crusher is communicated with the dust hood, and the dust hood at the discharge outlet of the cone crusher is covered on a belt of the first belt conveyor.
As a further improved technical scheme of the invention, a closed box body is arranged around a feed inlet of the cone crusher, the closed box body is communicated with the dust hood in a sealing way, an observation opening is further formed in the closed box body, rubber pads are arranged around the observation opening, the observation opening is hinged with a cover plate through a hinge, and the cover plate is sealed with the rubber pads.
As a further improved technical scheme of the invention, the dust hood which is communicated with the discharge port of the jaw crusher in a sealing way and the dust hood which is communicated with the discharge port of the cone crusher in a sealing way are of an integrated structure, and the integrated structure is connected with a belt on the first belt conveyor in a sliding way through a belt edge skin in a sealing way.
As a further improved technical scheme of the invention, the angle between the dust hood which is in sealing communication with the discharge opening of the jaw crusher and the discharge opening dripping groove of the jaw crusher is 50-70 degrees, and the angle between the dust hood which is in sealing communication with the discharge opening of the cone crusher and the discharge opening dripping groove of the cone crusher is 50-70 degrees.
As a further improved technical scheme of the invention, the vibrating screen is a totally-enclosed vibrating screen, and the totally-enclosed vibrating screen of the vibrating screen is communicated with a dust hood in a sealing way.
As a further improved technical scheme of the invention, the bottom of the ore collecting tank has a certain inclination angle with the horizontal plane, and the bottom discharge port of the ore collecting tank has a height difference with the feeding port of the transfer tank, so that ore pulp automatically flows into the transfer tank through a pipeline, and the lower end of the feeding port of the transfer tank is provided with a filter screen.
The beneficial effects of the invention are as follows:
the jaw crusher, the cone crusher and the feeding end of the vibrating screen are in a fully-closed state, so that dust escape can be effectively avoided, and meanwhile, an observation port is arranged at the feeding end to pay attention to feeding conditions at any time; the jaw crusher, the cone crusher and the vibrating screen are used for conveying dust generated in the working process to the dust remover through the dust hood and the pipeline, the closed box body is arranged around the feed inlet of the cone crusher, and the closed box body of the cone crusher is communicated with the dust hood in a sealing way, so that the dust near the feed inlet and the feed belt head is conveyed to the dust remover through the dust hood, and the dust is effectively collected; the angle between the dust hood above the first belt conveyor and the dripping groove of the discharging port of the crusher is controlled within the range of 50-70 degrees, so that coarse particle materials on the belt can be prevented from being sucked when the angle is too small, and the problem of low dust absorption rate when the angle is too large can be avoided; the dust hood above the first belt conveyor is in sealed sliding connection with the belt by adopting the belt edge skin, so that the dust hood can be well formed into a closed whole, and the normal operation of the belt is not influenced; the flow is simple, the service life is long, the dust collection efficiency is high, and the total dust collection efficiency can reach 99.9-99.99%; the dust is collected through the microporous membrane high-efficiency filtration dust remover, the dust with larger particles entering the dust remover is slowed down due to the air flow speed, the dust with smaller particles enters the lower box body of the dust remover under the action of self gravity, the dust-containing air flow is filtered on the microporous membrane under the action of pressure difference, the dust is trapped on the microporous membrane, and the filtered clean air is discharged through the air outlet, so that the effective control of the dust discharge amount is realized, when the dust on the surface of the microporous membrane is accumulated to a certain thickness, most of the dust falls off to the lower box body under the action of self gravity, the dust stuck on the microporous membrane falls off to the lower box body by the blowing of compressed air, and the dust in the lower box body is discharged from the sewage outlet to the ore collecting pool; the ore collecting tank is arranged to be used for storing materials in a slope manner, so that dust collection and flushing of production water are facilitated, and a certain height difference is arranged between a discharge hole of the ore collecting tank and a feed hole of the transfer tank, so that ore pulp can flow into the transfer tank automatically, and meanwhile, pipeline blockage is avoided; the lower end of the feeding port of the transfer tank is provided with a filter screen for filtering some impurity substances so as to avoid blocking the pipeline and facilitate the normal operation of the system; the upper overflow water in the ore collecting pond enters the water reservoir, the production water in the water reservoir is used for flushing dust falling into the ore collecting pond, recycling of the production water is achieved, meanwhile ore pulp formed in the ore collecting pond finally enters the production system for sorting, the utilization rate of the dust is effectively improved, and comprehensive utilization of resources is achieved.
Drawings
FIG. 1 is a schematic structural view of a clean production device for safely and efficiently reducing broken and screened dust;
FIG. 2 is a schematic diagram of a crushing plant structure of the clean production device for safely and efficiently reducing crushing and screening dust;
FIG. 3 is a schematic view of the structure of an observation port of the clean production device for safely and efficiently reducing broken and screened dust;
FIG. 4 is a schematic view of the dust collector area of the clean production device for safely and efficiently reducing broken and screened dust;
wherein, 1, jaw crusher; 2. a cone crusher; 3. a vibrating screen; 4. a dust remover; 5. a collection pool; 6. a reservoir; 7. a transfer pool; 8. coarse particles return to the tank; 9. an observation port; 10. a dripping groove; 11. a dust hood; 12. a belt edge skin; 13, closing the box body; 14. a hinge; 15. a cover plate; 16. a rubber pad; 17. an air inlet; 18. an air outlet; 19. an upper case; 20. a lower box body; 21. a sewage outlet; 22. a first belt conveyor; 23. a second belt conveyor; 24. a pipeline.
Detailed Description
The following is a further description of embodiments of the invention, with reference to the accompanying drawings:
as shown in fig. 1, the embodiment provides a clean production device for safely and efficiently reducing crushing and screening dust, which comprises a jaw crusher 1, a cone crusher 2, a vibrating screen 3, a dust remover 4, a mineral collecting tank 5, a water reservoir 6 and a transit tank 7; the jaw crusher 1, the cone crusher 2 and the vibrating screen 3 are respectively provided with a dust hood 11, and the dust hoods 11 are respectively connected with an air inlet 17 of the dust remover 4 through pipelines 24; the dust remover 4 is arranged above the ore collecting pool 5; the reservoir 6 is positioned at one side of the ore collecting tank 5 so as to ensure that overflow water at the upper layer of the ore collecting tank 5 enters the reservoir 6, and a discharge hole at the bottom of the ore collecting tank 5 is connected with the transit tank 7 through a pipeline 24; the reservoir 6 is connected with the ore collecting tank 5 through a pump and a pipeline 24, and the water in the ore collecting tank 5 and the reservoir 6 are recycled; the slurry in the transfer tank 7 is used to enter the production system via a pipe 24 and a pump.
Specifically, as shown in fig. 1, the discharge port of the jaw crusher 1 is communicated with the feed port of the vibrating screen 3 through a first belt conveyor 22, the coarse particle discharge port (i.e., the coarse particle return tank 8) of the vibrating screen 3 is communicated with the feed port of the cone crusher 2 through a second belt conveyor 23, and the discharge port of the cone crusher 2 is communicated with the feed port of the vibrating screen 3 through the first belt conveyor 22.
As shown in fig. 2, the multiple suction hoods 11 at the jaw crusher 1 are respectively disposed at the crushing cavity of the jaw crusher 1 and the position where dust falls to the first belt conveyor 22, that is, the suction hoods 11 are communicated with the crushing cavity shell of the jaw crusher 1, the suction hood 11 is communicated with the discharge opening of the jaw crusher 1, and the suction hood 11 at the discharge opening of the jaw crusher 1 is covered on the belt of the first belt conveyor 22.
As shown in fig. 2, a plurality of dust suction hoods 11 at the cone crusher 2 are respectively arranged above the feeding hole and the dust is blanked to the first belt conveyor 22; namely, a dust hood 11 is arranged above the feed inlet of the cone crusher 2, specifically, a closed box 13 is covered around the feed inlet of the cone crusher 2 and outside the feed belt head of the second belt conveyor 23, the closed box 13 is fixedly connected with the shell of the cone crusher 2 in a sealing way, the closed box 13 is communicated with the dust hood 11 in a sealing way, an observation port 9 is further arranged on the closed box 13, as shown in fig. 3, rubber pads 16 are arranged around the observation port 9, a cover plate 15 (steel plate) is hinged to the observation port 9 through a hinge 14, and the cover plate 15 is sealed with the rubber pads 16 in a sealing way; the discharge opening of the cone crusher 2 is communicated with a dust hood 11, and the dust hood 11 at the discharge opening of the cone crusher 2 is covered on the belt of the first belt conveyor 22.
The dust hood 11 communicated with the discharge port of the jaw crusher 1 and the dust hood 11 communicated with the discharge port of the cone crusher 2 are of an integrated structure, and the integrated structure is in sealed sliding connection with a belt on the first belt conveyor 22 through a belt edge 12.
As shown in fig. 2, the angle between the suction hood 11 in sealing communication with the discharge opening of the jaw crusher 1 and the discharge opening dripping groove 10 of the jaw crusher 1 is 50-70 degrees, and the angle between the suction hood 11 in sealing communication with the discharge opening of the cone crusher 2 and the discharge opening dripping groove 10 of the cone crusher 2 is 50-70 degrees.
The vibrating screen 3 adopts a totally-enclosed vibrating screen 3, and a dust hood 11 is communicated with an upper box body of the totally-enclosed vibrating screen 3 of the vibrating screen 3 in a sealing way.
The dust remover 4 is a DZF4-2.0 microporous membrane high-efficiency filter dust remover, and consists of a dust remover air inlet 17, a filter system, an air outlet 18, a dust removing system, an upper box 19, a lower box 20, a dust discharging device and the like. As shown in fig. 4, a drain outlet 21 is arranged at the bottom of the dust remover 4, a drain valve is connected to the drain outlet 21, and the drain outlet 21 is arranged above the ore collecting tank 5, so that dust in the dust remover 4 is discharged from the drain outlet 21 to the ore collecting tank 5.
The bottom of the ore collecting tank 5 has a certain inclination angle with the horizontal plane, and the bottom discharge port of the ore collecting tank 5 has a height difference with the feeding port of the transit tank 7, so that ore pulp in the ore collecting tank 5 automatically flows into the transit tank 7 through a pipeline 24, and a filter screen is arranged at the lower end of the feeding port of the transit tank 7.
The jaw breaker 1 of this embodiment, cone crusher 2 and shale shaker 3's feed end outside all is covered with closed box 13 to in preventing the dust of feed end department entering production environment, set up viewing aperture 9 on the closed box 13, as shown in fig. 3, still be provided with viewing aperture 9 on the closed box 13, be equipped with the rubber pad around viewing aperture 9, viewing aperture 9 articulates through hinge 14 has apron 15, for reaching better sealed effect, the rubber pad is arranged in between closed box 13 and the apron 15, apron 15 and viewing aperture 9 are sealed through the rubber pad lid and are closed.
The jaw crusher 1 and the cone crusher 2 of the embodiment are transported to the vibrating screen 3 by the first belt conveyor 22, the oversize products are returned to the second belt conveyor 23 through coarse particles, and are transported to the cone crusher 2 by the second belt conveyor 23 for crushing again, and the undersize products are transported to the fourth belt conveyor by the third belt conveyor for entering the powder ore bin for subsequent operation.
In the dust removal process, the crushing cavity of the jaw crusher 1, the feed inlet of the cone crusher 2 and the inner dust generated by the operation of the vibrating screen 3 are sucked into the dust remover 4 through the communication pipeline 24 of the dust hood 11, and meanwhile, the dust raised when the crushed products of the jaw crusher 1 and the cone crusher 2 fall onto the belt of the first belt conveyor 22 is sucked into the dust remover 4 through the communication pipeline 24 of the dust hood 11. The dust with larger particles entering the dust remover 4 is settled into the lower box body 20 of the dust remover 4 under the action of self gravity due to the slow speed of the air flow; the dust with smaller particles enters the microporous membrane filter material along with the air flow, the dust-containing air flow is filtered on the microporous membrane under the action of pressure difference, the dust is trapped on the microporous membrane, and the filtered clean air is discharged through the upper box 19 and the air outlet 18. When the dust on the surface of the microporous membrane is accumulated to a certain thickness, most of the dust falls off under the action of self gravity, and the dust stuck on the microporous membrane is blown off to the lower box body 20 by compressed air, and the dust in the lower box body 20 is discharged from the sewage outlet 21. The dust falls into the collection tank 5 and deposits, and the upper overflow water of collection tank 5 can get into cistern 6 through flowing automatically for follow-up slurrying uses, and the bottom ore pulp is accumulated to the back of certain degree, in carrying collection tank 5 with the production water in the cistern 6 through the pump to wash with the production water and make the thick liquid, then the ore pulp flows automatically through pipeline 24 and gets into transit pond 7, and the rethread pump is beaten to production system, improves the utilization ratio to dust and production water, resources are saved and manufacturing cost.
The embodiment also provides a clean production method for safely and efficiently reducing crushing and screening dust, which comprises the following steps: dust generated by the operation of the jaw crusher 1, the cone crusher 2 and the vibrating screen 3 is sucked into the microporous membrane filter dust remover by the dust hood 11 and the pipeline 24, and meanwhile, the crushed products after the operation of the jaw crusher 1 and the cone crusher 2 fall onto the belt of the first belt conveyor 22 and the dust raised by the belt of the first belt conveyor 22 is sucked into the microporous membrane filter dust remover by the dust hood 11 and the pipeline 24; the large-particle dust entering the microporous membrane filter dust remover is settled into the lower box body 20 of the microporous membrane filter dust remover under the action of self gravity; the dust of small granule gets into the microporous membrane of microporous membrane filter dust remover along with the air current, under the pressure differential effect, the dusty air current filters on the microporous membrane, the air that filters clean is discharged through the air outlet 18 of microporous membrane filter dust remover, the dust is held back on the microporous membrane, when the dust on microporous membrane surface gathers to certain thickness, the dust drops to lower box 20 by self gravity effect, the dust that glues on the microporous membrane drops to lower box 20 by compressed air jetting, the dust is all discharged from drain 21 of lower box 20 bottom in the lower box 20, the dust falls into the collection basin 5 and deposits, the upper overflow water of collection basin 5 is through flowing into cistern 6, thereby to washing and slurrying to the ore pulp in collection basin 5 with the water in the collection basin 6 through the pump after accumulating to a certain extent, then the ore pulp flows into transfer basin 7 through the pipeline, the ore pulp in the transfer basin 7 is carried to production system through the pump again.
Through technological improvement, the clean production side device for safely and efficiently reducing broken and screened dust has good operation condition, the dust removal efficiency is improved to 99.5%, and the concentration of particles at a discharge port is less thanSpecial emission limit 10mg/m 3 The emission of heavy metals is reduced by more than 20%, and the requirement that the concentration of particulate matters at the crushing and screening exhaust gas discharge port by government environmental protection is required to be lower than the special discharge limit value of 'lead-zinc industrial pollutant discharge standard (GB 25466-2010) order repairing', and the emission of heavy metals is reduced by 15% compared with the prior art is met. In addition, all dust collected in the system reenters the production system, 450 tons of raw ore can be recovered each year, the utilization rate of the dust is greatly improved, the environment is protected, and the comprehensive utilization of resources is realized.
The scope of the present invention includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the invention.
Claims (10)
1. The clean production method for safely and efficiently reducing crushing and screening dust is characterized by comprising the following steps of: dust generated by the work of the jaw crusher, the cone crusher and the vibrating screen is sucked into the dust remover through the dust hood and the pipeline, and meanwhile, crushed products after the work of the jaw crusher and the cone crusher fall onto a belt of the first belt conveyor, and the dust raised by the belt of the first belt conveyor is sucked into the dust remover through the dust hood and the pipeline; the dust entering the dust remover is settled under the action of self gravity and falls into the ore collecting pool from the sewage outlet of the dust remover; the upper overflow water of the ore collecting pond automatically flows into the water reservoir, after the ore pulp at the bottom of the ore collecting pond is accumulated, the water in the water reservoir is conveyed into the ore collecting pond so as to flush and make pulp, and then the pulp automatically flows into the intermediate transfer pond, and the pulp in the intermediate transfer pond is conveyed to a production system.
2. The clean production method for safely and efficiently reducing broken and screened dust according to claim 1, wherein the dust remover is a microporous membrane filter dust remover, and large-particle dust entering the microporous membrane filter dust remover is settled into a lower box body of the microporous membrane filter dust remover under the action of self gravity; the dust of granule gets into microporous membrane filter dust remover's microporous membrane along with the air current, under the pressure differential effect, the dust-laden air current filters on the microporous membrane, the air that filters clean is discharged through the air outlet of microporous membrane filter dust remover, the dust is held back on the microporous membrane, when the dust on microporous membrane surface gathers to certain thickness, the dust drops to the lower box by self gravity effect, the dust that glues on the microporous membrane drops to the lower box by compressed air jetting, the dust is all discharged from the drain of lower box bottom in the lower box, the dust falls into the sedimentation in the collection basin, the upper overflow water in collection basin is through flowing into the cistern, thereby the water in the collection basin is carried to the collection basin through the pump after the pulp accumulates to certain thickness, thereby wash and make thick liquid to the ore pulp, then the ore pulp flows into the transfer basin through the pipeline, the ore pulp in the transfer basin is carried to production system through the pump again.
3. The clean production method for safely and efficiently reducing crushing and screening dust according to claim 1, wherein a discharge port of the jaw crusher is communicated with a feed port of a vibrating screen through a first belt conveyor, a coarse particle discharge port of the vibrating screen is communicated with a feed port of a cone crusher through a second belt conveyor, and a discharge port of the cone crusher is communicated with the feed port of the vibrating screen through the first belt conveyor.
4. The clean production method for safely and efficiently reducing crushing and screening dust according to claim 1, wherein a dust hood is communicated with a crushing cavity shell of the jaw crusher, a dust hood is communicated with a discharge port of the jaw crusher, and the dust hood at the discharge port of the jaw crusher is covered on a belt of a first belt conveyor.
5. The clean production method for safely and efficiently reducing crushing and screening dust according to claim 4, wherein a dust hood is arranged above a feed inlet of the cone crusher, a dust hood is communicated with a discharge outlet of the cone crusher, and the dust hood at the discharge outlet of the cone crusher is covered on a belt of the first belt conveyor.
6. The clean production method for safely and efficiently reducing crushed and screened dust according to claim 5, which is characterized by comprising the following steps of: the cone crusher is characterized in that a closed box body is arranged around a feed inlet of the cone crusher and is communicated with the dust hood in a sealing mode, an observation opening is further formed in the closed box body, rubber pads are arranged around the observation opening, a cover plate is hinged to the observation opening through a hinge, and the cover plate is sealed with the rubber pads in a sealing mode.
7. The clean production method for safely and efficiently reducing crushed and screened dust according to claim 5, which is characterized by comprising the following steps of: the suction hood with the jaw crusher discharge port in sealing communication is of an integrated structure with the suction hood with the cone crusher discharge port in sealing communication, and the integrated structure is in sealing sliding connection with a belt on the first belt conveyor through a belt edge skin.
8. The clean production method for safely and efficiently reducing crushed and screened dust according to claim 5, which is characterized by comprising the following steps of: the angle between the dust hood and the discharge hole dripping groove of the jaw crusher is 50-70 degrees, and the angle between the dust hood and the discharge hole dripping groove of the cone crusher is 50-70 degrees.
9. The clean production method for safely and efficiently reducing crushing and screening dust according to claim 1, which is characterized by comprising the following steps of: the vibrating screen is a totally-enclosed vibrating screen, and the totally-enclosed vibrating screen of the vibrating screen is communicated with a dust hood in a sealing way.
10. The clean production method for safely and efficiently reducing crushing and screening dust according to claim 1, which is characterized by comprising the following steps of: the bottom of the ore collecting tank has a certain inclination angle with the horizontal plane, and the bottom discharge port of the ore collecting tank has a height difference with the feeding port of the transfer tank, so that ore pulp automatically flows into the transfer tank through a pipeline, and a filter screen is arranged at the lower end of the feeding port of the transfer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310190439.4A CN115990543A (en) | 2023-03-02 | 2023-03-02 | Clean production method for safely and efficiently reducing broken and screened dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310190439.4A CN115990543A (en) | 2023-03-02 | 2023-03-02 | Clean production method for safely and efficiently reducing broken and screened dust |
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| Publication Number | Publication Date |
|---|---|
| CN115990543A true CN115990543A (en) | 2023-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310190439.4A Pending CN115990543A (en) | 2023-03-02 | 2023-03-02 | Clean production method for safely and efficiently reducing broken and screened dust |
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| CN (1) | CN115990543A (en) |
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2023
- 2023-03-02 CN CN202310190439.4A patent/CN115990543A/en active Pending
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