CN215613037U - Closed dustproof dust removal system for screening operation of vibrating screen - Google Patents
Closed dustproof dust removal system for screening operation of vibrating screen Download PDFInfo
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- CN215613037U CN215613037U CN202121173780.1U CN202121173780U CN215613037U CN 215613037 U CN215613037 U CN 215613037U CN 202121173780 U CN202121173780 U CN 202121173780U CN 215613037 U CN215613037 U CN 215613037U
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Abstract
A closed dustproof and dust removal system for screening operation of a vibrating screen comprises a material receiving section dustproof cover, a material discharging section dustproof cover, a dust remover, an induced draft fan, an ash discharge valve, an ash collecting hopper, a dust removal air pipe, an exhaust funnel and a cover body flange, wherein the material receiving section dustproof cover and the material discharging section dustproof cover are connected through the cover body flange to form an integral dustproof cover, and the vibrating screen is arranged in the dustproof cover; the top of the dust cover of the receiving section is provided with a feeding funnel, and the side surface of the dust cover is provided with an access door; a dust concentration detector is arranged in the dust cover of the discharging section, and an observation hole is formed in the side surface of the dust cover; the utility model solves the problem of dust pollution in material screening preparation operation in the industries of mines, building materials, metallurgy and the like, adopts reliable and effective sealing measures for dust producing points, improves the dust removal efficiency and the dust removal effect, improves the operating environment of post workers, gives consideration to the convenience of maintenance and overhaul of equipment facilities, can return useful mineral dust discharged from a dust remover to a production system for recycling, and greatly reduces the loss of useful minerals.
Description
Technical Field
The utility model relates to the technical field of mineral processing and solid waste treatment, in particular to a closed dustproof dust removal system for screening operation of a vibrating screen.
Background
In the field of mineral processing and solid waste treatment, in order to separate useful minerals or recycle solid waste, it is often necessary to first perform preparatory operations such as crushing and screening on materials. The screening operation is a production process of dividing materials into a plurality of different particle size grades according to particle sizes by adopting screening machinery such as a vibrating screen and the like. During the sieving process, the materials and the sieve surface collide with each other continuously and violently, so that a great amount of fine dust is generated. The dust is suspended and moved in the air under the action of airflow and is very easy to diffuse to the whole production site. When the dust amount is extremely large, the dust can be diffused to the outside of the workshop, so that the quality of the ambient air environment is influenced, and certain harm can be caused in severe cases. Therefore, necessary and effective dust prevention and removal measures are required to treat the dust generated in the screening operation. In order to achieve a good dust removal effect, the dust generating point is sealed, and a certain negative pressure is formed in the sealed space, so that dust can enter the dust remover along a pipeline for purification treatment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a closed dustproof dust removal system for screening operation of a vibrating screen, which solves the problems that dust escapes everywhere in the screening operation process of the vibrating screen, and pollution is caused to the operation environment and the surrounding environment of an operation place.
The purpose of the utility model is realized by the following technical scheme:
a closed dustproof and dust removal system for screening operation of a vibrating screen comprises a feeding funnel, a material receiving section dustproof cover, a material discharge section dustproof cover, an oversize material discharge funnel, an undersize material discharge funnel, a dust remover, an induced draft fan, an ash discharge valve, an ash collecting hopper, a control cabinet, a dedusting air pipe, an exhaust funnel, a cover body flange, an oversize material belt conveyor and an undersize material belt conveyor, wherein the material receiving section dustproof cover is connected with the material discharge section dustproof cover through the cover body flange to form an integral dustproof cover, and the vibrating screen is arranged in the dustproof cover; the top of the dust cover of the receiving section is provided with a feeding funnel, and the side surface of the dust cover is provided with an access door; a dust concentration detector is arranged in the dust cover of the discharging section, and an observation hole is formed in the side surface of the dust cover; the vibrating screen is provided with an oversize material discharge funnel at the discharge end, and an undersize material discharge funnel is arranged right below the vibrating screen; the oversize material discharge hopper is connected with an oversize material belt conveyor through an a-type guide chute; the undersize material discharge hopper is connected with an undersize material belt conveyor through a b-shaped material guide groove; an air suction hood I is arranged at the top of the dust cover of the receiving section; an air suction cover II is arranged at the top of the a-type guide chute matched with the oversize belt conveyor; an air suction hood III is arranged at the top of a b-shaped guide chute matched with the undersize belt conveyor; the air suction cover I, the air suction cover II and the air suction cover III are all connected with a dust removal pipeline, the dust removal pipeline is connected with a dust remover, the dust remover is connected with an induced draft fan, and the induced draft fan is connected with an exhaust funnel.
The induced draft fan is provided with a frequency conversion device.
The beneficial technical effects of the utility model are as follows:
the utility model solves the problem of dust pollution in material screening preparation operation in the industries of mines, building materials, metallurgy and the like, and adopts reliable and effective sealing measures for dust producing points, thereby improving the dust removal efficiency and the dust removal effect, improving the operation environment of post workers, and considering the convenience of maintenance and overhaul of equipment facilities, and meanwhile, useful mineral dust discharged from the dust remover can be returned to a production system for recycling, thereby greatly reducing the loss of useful minerals.
Drawings
FIG. 1 is a schematic structural diagram of a closed dust-proof system according to the present invention;
FIG. 2 is a view in the direction A of FIG. 1;
FIG. 3 is a view from the direction B of FIG. 1;
in the figure: 1-a feeding hopper; 2-dust cover of material receiving section; 3-dust cover of discharge section; 4-oversize discharge funnel; 5-undersize discharge funnel; 6-a dust remover; 7-a draught fan; 8-an ash discharge valve; 9-ash collecting hopper; 10-a control cabinet; 11-a dust removal air pipe; 12-an access door; 13-dust concentration detector; 14-a viewing aperture; 15-suction hood I; 16-an air suction hood II; 17-suction hood III; 18-an exhaust funnel; 19-a cover flange; 20-vibrating screen; 21-oversize belt conveyor; 22-undersize belt conveyor; 23-a type material guide groove; 24-b type material guide groove.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1, 2 and 3, a closed dust-proof and dust-removing system for the sieving operation of the vibrating screen comprises a feeding funnel 1, a receiving section dust-proof cover 2, a discharging section dust-proof cover 3, an oversize material discharging funnel 4, an undersize material discharging funnel 5, a dust remover 6, an induced draft fan 7, an ash discharge valve 8, an ash collecting hopper 9, a control cabinet 10, a dust-removing air pipe 11, an exhaust funnel 18, a cover body flange 19, an oversize material belt conveyor 21 and an undersize material belt conveyor 22, wherein the receiving section dust-proof cover 2 and the discharging section dust-proof cover 3 are connected through the cover body flange 19 to form an integral dust-proof cover, and a vibrating screen 20 is arranged in the dust-proof cover; the top of the dust cover 2 of the receiving section is provided with a feeding funnel 1, and the side surface is provided with an access door 12; a dust concentration detector 13 is arranged in the dust cover 3 of the discharge section, and an observation hole 14 is arranged on the side surface; the vibrating screen 20 is provided with an oversize material discharge funnel 4 at the discharge end, and an undersize material discharge funnel 5 is arranged right below the vibrating screen; the oversize material discharge hopper 4 is connected with an oversize material belt conveyor 21 through an a-shaped material guide chute 23; the undersize material discharging hopper 5 is connected with an undersize material belt conveyor 22 through a b-shaped material guide chute 24; the top of the dust cover 2 of the receiving section is provided with an air suction cover I15; an air suction cover II 16 is arranged at the top of the a-type guide chute 23 matched with the oversize belt conveyor 21; an air suction hood III 17 is arranged at the top of a b-shaped guide chute 24 matched with the undersize belt conveyor 22; the air suction hood I15, the air suction hood II 16 and the air suction hood III 17 are all connected with a dust removal pipeline 11, the dust removal pipeline 11 is connected with a dust remover 6, the dust remover 6 is connected with an induced draft fan 7, and the induced draft fan 7 is connected with an exhaust funnel 18.
The induced draft fan 7 is provided with a frequency conversion device.
The specific working process of the closed dustproof dust removal system is as follows:
the material is sent into shale shaker 20 through feed funnel 1 and is sieved the operation, and oversize material arranges to oversize belt conveyor 21 via oversize material discharge funnel 4, and undersize material arranges to undersize belt conveyor 22 via undersize material discharge funnel 5. The dust-containing gas generated in the screening and transferring processes of the materials enters the dust remover 6 for purification through the air suction hood and the dust removing pipeline 11 under the action of the draught fan 7, and the purified gas is discharged through the exhaust funnel 18. The dust collected in the dust collector 6 is discharged to a dust collecting hopper 9 through a dust discharging valve 8.
When the vibrating screen 20 is in operation, the screen surface and the frame have a certain amplitude. The discharge hopper and the machine body cannot be in rigid connection and cannot be thoroughly sealed, so that dust is generated at the discharge position. The dust cover is arranged on the working platform, and all parts and discharging positions of the vibrating screen 20 are enclosed in the dust cover, so that the possibility of flying dust is avoided.
The dust cover is divided into a material receiving section dust cover 2 and a material discharging section dust cover 3. The frequency of screen replacement is relatively high for shaker 20. Due to the split design of the dust cover, the convenience of screen replacement is improved. When the screen cloth is replaced, the replacement and installation of the screen cloth can be completed only by detaching the cover body flange 19 and hoisting and separating the light-weight and small-volume dust cover 3 of the discharge section. Meanwhile, the two-section type butt joint of the dust cover reduces the volume and the weight of the cover body which is installed at a single time, and reduces the load of lifting and installing operation.
The dustproof lamp arranged in the dustproof cover provides a good lighting environment for the dustproof cover. The passage reserved between the dustproof cover and the body of the vibrating screen 20 provides necessary space for daily maintenance and overhaul of the equipment.
The access door 12 arranged on the side surface of the dust cover 2 at the receiving section is convenient for maintaining and overhauling parts such as a motor, a transmission shaft, a vibration exciter and the like of the vibrating screen 20. The observation hole 14 arranged on the side surface of the dust cover 3 of the discharge section enables an operator to observe the height of the material layer of the screen and the working condition of the vibrating screen 20 in real time more conveniently.
The dust concentration detector 13 arranged in the dust cover 3 of the discharge section can monitor the dust concentration value of the gas in the dust cover on line. Meanwhile, a functional relation comparison table among the gas dust concentration, the filtering air speed and the fan air volume is established, and the air volume is dynamically regulated by a frequency conversion device of the draught fan 7 according to the gas dust concentration value and the filtering air speed required by the dust-containing gas to reach the standard emission, so that all parts of the system reach the optimal operation state, the dust removal efficiency is improved, and the electric energy consumption of the draught fan is reduced.
And flexible adhesive tapes are adopted to seal the welding seams of the protective cover and the discharge hopper and the joints of the feeding hopper 1, the access door 12, the observation hole 14 and the dust cover. The front section of the guide chute of the belt conveyor is provided with a dustproof curtain, the rear section of the guide chute is provided with a baffle, and the side plate of the guide chute and the rubber belt of the belt conveyor are sealed by a rubber plate, so that the dustproof cover, the material discharging hopper and the guide chute and the rubber belt are all provided with good sealing performance. The dust cover, the discharge hopper and the guide chute of the belt conveyor jointly form a relatively closed space, and dust generated in the screening and transferring processes of the materials can only be limited in the closed space to be free. Meanwhile, in the dust removal and purification process, under the action of air pumped by the draught fan 7, the closed space where dust is gathered is in a negative pressure state, and the dust-containing gas can flow along the dust removal air pipe 11 to enter the dust remover 6 for purification. Through the measures, the dust can not escape to the outside, and the improvement of the workshop operation environment is greatly guaranteed.
The dust collected in the dust collecting hopper 9 can be recycled if the dust contains useful minerals.
Claims (2)
1. The utility model provides a dustproof dust pelletizing system of closed for shale shaker screening operation, includes feed funnel (1), receives material section dust cover (2), arranges material section dust cover (3), oversize thing row material funnel (4), undersize thing row material funnel (5), dust remover (6), draught fan (7), unloading valve (8), dust collecting hopper (9), switch board (10), dust removal tuber pipe (11), aiutage (18), cover body flange (19), oversize thing belt conveyor (21), undersize thing belt conveyor (22), its characterized in that: the material receiving section dust cover (2) is connected with the material discharging section dust cover (3) through a cover body flange (19) to form an integral dust cover, and a vibrating screen (20) is arranged in the dust cover; the top of the dust cover (2) of the receiving section is provided with a feeding funnel (1), and the side surface is provided with an access door (12); a dust concentration detector (13) is arranged in the dust cover (3) of the discharging section, and an observation hole (14) is arranged on the side surface; the vibrating screen (20) is provided with an oversize material discharge funnel (4) at the discharge end, and an undersize material discharge funnel (5) is arranged right below the vibrating screen; the oversize material discharge hopper (4) is connected with an oversize material belt conveyor (21) through an a-shaped material guide chute (23); the undersize discharge hopper (5) is connected with an undersize belt conveyor (22) through a b-shaped guide chute (24); the top of the dust cover (2) of the receiving section is provided with an air suction cover I (15); an air suction cover II (16) is arranged at the top of an a-shaped guide chute (23) matched with the oversize belt conveyor (21); an air suction hood III (17) is arranged at the top of a b-shaped guide chute (24) matched with the undersize belt conveyor (22); the dust removal device is characterized in that the air suction hood I (15), the air suction hood II (16) and the air suction hood III (17) are connected with a dust removal air pipe (11), the dust removal air pipe (11) is connected with a dust remover (6), the dust remover (6) is connected with an induced draft fan (7), and the induced draft fan (7) is connected with an exhaust funnel (18).
2. The closed dust-proof and dust-removing system for the screening operation of the vibrating screen as claimed in claim 1, wherein: the induced draft fan (7) is provided with a frequency conversion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121173780.1U CN215613037U (en) | 2021-05-28 | 2021-05-28 | Closed dustproof dust removal system for screening operation of vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121173780.1U CN215613037U (en) | 2021-05-28 | 2021-05-28 | Closed dustproof dust removal system for screening operation of vibrating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215613037U true CN215613037U (en) | 2022-01-25 |
Family
ID=79939861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121173780.1U Active CN215613037U (en) | 2021-05-28 | 2021-05-28 | Closed dustproof dust removal system for screening operation of vibrating screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215613037U (en) |
-
2021
- 2021-05-28 CN CN202121173780.1U patent/CN215613037U/en active Active
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