CN210586286U

CN210586286U - Calcium carbide dust recovery device

Info

Publication number: CN210586286U
Application number: CN201920990320.4U
Authority: CN
Inventors: 张磊; 周立强; 王佳宁
Original assignee: Tianjin Dagu Chemical Co ltd
Current assignee: Tianjin Dagu Chemical Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-05-22
Anticipated expiration: 2029-06-27

Abstract

A calcium carbide dust recovery device is used for recovering dust generated by calcium carbide crushing. Including setting up the fan in carbide operation area, the dust remover is connected to the fan, the entry of the exit linkage auger of dust remover, the exit linkage tripper of auger, the entry of trigger is scraped in the exit linkage of tripper, scrapes the exit linkage discharge opening of trigger, the discharge opening be equipped with and dismantle the dust excluding hood. Further, the dust recycling device comprises a dust recycling area, and the discharge opening is formed in the dust recycling area. The fan, the dust remover, the auger, the discharger, the scraper and the discharge opening are communicated with each other to form a closed passage. The beneficial effects of the utility model are that, makeThe emission value of the dust removal tail gas emission is less than 50mg/Nm³And the calcium carbide dust can be recycled.

Description

Calcium carbide dust recovery device

Technical Field

The utility model is used for a novel carbide dust recovery plant especially smashes the recovery work who produces the dust to the carbide.

Background

The required carbide of carbide method production has clear and definite requirement to the size, and the carbide that transports is mostly the bold carbide about the diameter 1m, can not directly use, needs carry out multiple shredding to about 3-5cm of diameter, and in unloading and crushing process, can produce a large amount of carbide dusts, through the fan emission, can cause the pollution to the spatial environment not handling.

Disclosure of Invention

The utility model aims at solving the too big problem of carbide job site dust, provide a carbide dust recovery unit, eliminate the pollution that a large amount of dust that produces caused the environment in the carbide operation.

In order to achieve the above purpose, the utility model discloses a technical scheme is:

the utility model provides a carbide dust recovery unit, is including setting up the fan in carbide operation district, and the dust remover is connected to the fan, the entry of the exit linkage auger of dust remover, the exit linkage tripper of auger, the entry of trigger is scraped in the exit linkage of tripper, scrapes the exit linkage discharge opening of trigger, the discharge opening be equipped with and dismantle the dust excluding hood.

Further, the dust recycling device comprises a dust recycling area, and the discharge opening is formed in the dust recycling area.

The fan, the dust remover, the auger, the discharger, the scraper and the discharge opening are communicated with each other to form a closed passage.

The beneficial effects of the utility model are that, the emission value that makes dust removal exhaust emissions reach is < 50mg/Nm³And the calcium carbide dust can be recycled.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the structure schematic diagram of the discharge opening of the utility model.

In the figure: 1. a fan; 2. a dust remover; 3. a packing auger; 4. a discharger; 5. a scraper machine; 6. a discharge opening; 7. a dust hood.

Detailed Description

The present invention will be further described with reference to the following examples.

According to the drawing 1, the utility model discloses a set up fan 1 in carbide operation district, 2 entrys of dust remover are connected to fan 1, and the entry of the exit linkage auger 3 of dust remover 2, the exit linkage tripper 4 of auger 3, the entry of scraper 5 is scraped in the exit linkage of tripper 4, scrapes the exit linkage discharge opening 6 of scraper 5, fan 1, dust remover 2, auger 3, tripper 4, scrape the airtight passageway of scraper 5, discharge opening 6 between for the intercommunication.

As can be seen from fig. 2, the discharge opening 6 is provided with a detachable dust hood 7.

The utility model discloses a dust recovery district, discharge opening 6 set up in the dust recovery district.

The utility model discloses a complete set of perfect processing system as an organic whole is handled to current collection stone dust removal, tail wind and dust recycle. In order to reduce the inside space dust content of carbide awning, improve site environment, the utility model discloses can many sets set up in the region of difference, utilize each regional independent pipeline, carry out semi-closed processing to the operation district, laid the dust removal pipeline again, set up novel efficient dust removal and collected the mouth, do the detailed description according to four dust removal regions below.

1. An unloading area:

because the original calcium carbide awning area is about 12000m²The utility model discloses a dust absorption effect is very difficult to realize to the vacuum degree, the four sides ventilates to north side is the open-type, under original fan amount of wind, the utility model discloses utilize under the condition of original fan amount of wind, unload the carbide awning and carried out the sealing treatment as far as possible, the various steel sheet in upper portion seals, has only kept the necessary exit of vehicle, and has increased liftoff 4 m's plastic curtain in entrance department and seal, has reduced the communicating area in dust absorption region and external as far as under the prerequisite that does not influence driver's sight as far as, improves the wind speed as far as possible, realizes the vacuum degree of dust absorption mouth, in order to reach better dust absorption effect.

Because the carbide transportation adopts the vapour fortune, adopts the forklift to push away the bold carbide and fall on the ground when unloading, can cause the concentrated diffusion of the dust of a large amount of morals and manners on the carbide this moment, and the carbide powder dust volume is big in the twinkling of an eye, and influence scope is also big, is difficult to handle, and this patent is through the mode dust absorption of having add two rows of 10 compact horn mouth formula suction hoods on the regional upper portion of unloading, and dust absorption area is about 210m²About 4m away from the ground, each dust hood is provided with an independent manual air plate valve for air volume adjustment, the dust hoods are close to the dumping area of the calcium carbide as much as possible on the premise of not influencing unloading, and original 1# and 2# dust removal fans (the air volume is the same) are adopted270000Nm³And h) the newly added 1# and 2# dust collectors are matched to collect dust together, so that the dust can be upwards sucked away under the action of induced air after being separated from the calcium carbide, and the aim of reducing the dust concentration in the space is fulfilled.

2. Primary breaking (rough breaking) area of stone:

the large calcium carbide needs to be primarily crushed after being unloaded (the diameter is about 10-15cm after being crushed), dust on the surface of the calcium carbide can further fall off in the process, an original dust suction port is only a section of air pipe with the diameter of 1m led out from an annular pipeline, and the original 3# dust removal fan (the air volume is about 70000 Nm)³H) matching with a newly added 3# dust remover to specially induce air in the area, and additionally arranging a dust hood capable of completely covering the upper part of the pulverizer above the two primary pulverizers (a calcium carbide stacking area) to seal three surfaces of the pulverizer, wherein a forklift feeding area with the height of about 1.5m is reserved on one side; and new dust suction openings (6 in total) are added to the part which can generate dust such as crushing jaw plates, belt feeding and the like, and the dust overflow condition is basically refused.

3. A calcium carbide secondary crushing (fine crushing) area:

the calcium carbide after primary crushing is continuously subjected to secondary crushing (the diameter after crushing is about 3-5cm), the modification of the dust removal pipeline is basically consistent with that of a primary crushing area, and the difference is that a No. 4 dust removal fan is used (the air volume is about 70000 Nm)³H) matching with a newly added 4# dust remover to induce air, wherein the main dust treatment points are 1 belt feeding point of the fine crusher, 2 belt feeding points of the fine crusher, 2 fine crushing discharging points, 1 belt blanking point and 4 belt transfer points, and the total number of the dust treatment points is 10 dust absorption points; meanwhile, in order to remove the communicated area between the induced air and the outside, the two sides of the object in the area are also sealed, a mode of adding a waterproof cloth curtain for isolating air is adopted, and the two sides can be pulled open so as to be convenient for equipment maintenance.

4. Calcium carbide belt conveying area:

because the calcium carbide is crushed and needs to be conveyed to the calcium carbide bin by a belt, scattered calcium carbide dust must exist on the belt, and the possibility of dust overflow exists at the discharging positions of a plurality of sections of belts and the discharging positions of the calcium carbide bin, the calcium carbide crushing machine utilizes the original 5#, 6#,7# blower (combined total air quantity is 94000Nm³The 5# dust remover that the cooperation is newly increased carries out the multiple spot dust absorption, and it is 3 for belt blanking point that main dust point of administering is, feed bin material loading point 2, feed bin blowing point 2, totally 7 suction points to seal the dust absorption (add airtight suction hood) in every suction point department, every suction point department sets up manual air regulation valve, adjusts the amount of wind of each suction point department of distribution when the system debugging of being convenient for.

The utility model discloses in the dust removal part, dust remover 2 for the sack cleaner, adopted locellus pin-connected panel structure, carried out locellus blowing-off air box pulse deashing (so-called off-line deashing) in turn to each room filter bag by roof pulse valve, it is different with the deashing of general blowing formula dust remover, the blowing pulse deashing is only arranged the jetting deashing (so-called online deashing) one by one to wherein each row of filter bag in same filter chamber, and other each row of filter bag still filters. The dust removal and the filtration are simultaneously carried out in a mixing way in one chamber, the dust after dust removal flies for the second time, and part of the dust can be collected by adjacent filter bags, thus being not beneficial to the filtration of gas with larger dust concentration; the dust remover is carried out under the condition that the valve is closed in one chamber and the filtering is stopped, the dust which is cleared down is downwards settled in the dust hopper, secondary flying is not generated, the dust remover is greatly beneficial to filtering gas with high dust concentration, the filter bag of one air chamber can be replaced under the condition of no stop, and all off-line dust cleaning processes are automatically completed by a PLC program.

Because the carbide dust meets water and can produce acetylene gas with very fast speed, so can not deal with at will, this patent innovation point lies in passing through the discharge valve with carry the auger in order at the uniform velocity transport to scraping the trigger (according to the on-the-spot condition of arranging, be provided with 3 sections, total length is about 60m) with the carbide dust of collecting in the dust remover ash bucket, it drives the scraper blade motion to scrape the trigger through the motor, carry the carbide dust to carbide feeding belt top, get into the carbide feed bin together with the carbide after the second grade breakage, follow-up entering generator retrieval and utilization, because the lower feed point of carbide feeding belt and carbide feed bin all is provided with special dust absorption mouth, so do not have follow-up excessive problem, realized the retrieval and utilization of carbide dust with minimum running cost safety, handling cost has been reduced promptly, by having produced economic benefits.

In order to further make the recovery of dust, the utility model discloses be equipped with detachable dust excluding hood 7 at discharge opening 6, the dust flies upward when effectively having reduced to unload.

The utility model discloses the dust removal process is:

(1) calcium carbide dust in four areas, namely an unloading area of the calcium carbide awning automobile, a coarse crusher, a fine crusher, a belt and a calcium carbide bin, is sucked away by a dust removal fan 1;

(2) the dust remover 2 is required to be used for interception and collection before discharging;

(3) collecting calcium carbide dust on the cloth bag after pulse back flushing;

(4) conveying the calcium carbide dust to a crushing belt through a packing auger 3, a discharger 4 and a scraper conveyor 5;

(5) the dust is discharged and recovered through a discharge opening 6 and enters a generator along with the calcium carbide for reaction.

It should be noted that the embodiments of the present invention are only the preferred embodiments for implementing the present invention, and all the obvious modifications and changes belonging to the overall concept of the present invention should fall within the protection scope of the present invention.

Claims

1. A calcium carbide dust recovery device is characterized in that: including setting up the fan in carbide operation area, the dust remover is connected to the fan, the entry of the exit linkage auger of dust remover, the exit linkage tripper of auger, the entry of trigger is scraped in the exit linkage of tripper, scrapes the exit linkage discharge opening of trigger, the discharge opening be equipped with and dismantle the dust excluding hood.

2. The calcium carbide dust recovery device of claim 1, wherein: the dust recovery device comprises a dust recovery area, wherein the discharge opening is formed in the dust recovery area.

3. The calcium carbide dust recovery device of claim 1, wherein: the fan, the dust remover, the auger, the discharger, the scraper and the discharge opening are communicated with each other to form a closed passage.