CN211136795U

CN211136795U - Sand blasting system for dedusting by spraying circulating water

Info

Publication number: CN211136795U
Application number: CN201921770961.5U
Authority: CN
Inventors: 晋华明
Original assignee: Wuhu Zhongyuan Composite New Mat Co ltd
Current assignee: Wuhu Zhongyuan Composite New Mat Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-07-31
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a sand blasting system for spraying and dedusting circulating water, which comprises a sand blasting tunnel bin, a dedusting suction port and a sand spray gun which are arranged at the top of the inner side of the sand blasting tunnel bin, and a high pressure fan with an air outlet connected with the sand spray gun, and a spraying and dedusting bin connected with an air inlet of the high pressure fan; the top of the spraying dust removal bin is provided with a dust removal spraying head used for spraying water, the upper end of the side face of the spraying dust removal bin is provided with a dust removal gas outlet, the lower end of the side face of the spraying dust removal bin is provided with a dust removal gas inlet, the air inlet of the high-pressure fan is communicated with the dust removal gas outlet, and the dust removal air suction opening is communicated with the dust removal gas inlet. The utility model provides a pair of sand blasting system that circulating water sprayed dust removal reduces the dust diffusion of sandblast operation through convulsions, recycles after removing dust to the gas that contains the dust through spraying simultaneously.

Description

Sand blasting system for dedusting by spraying circulating water

Technical Field

The utility model relates to a steel structural material production facility technical field, especially a sand blasting system that circulating water sprayed dust removal.

Background

The surface of the steel structure product is subjected to sand blasting treatment, so that oil stains and burrs on the surface of the steel structure product can be removed, and the steel structure product is convenient to be subjected to surface treatment procedures such as zinc impregnation or Dacromet coating in the next step. Steel construction work piece sand blasting equipment among the prior art mainly adopts intermittent type formula operation mode: firstly, a batch of steel structure workpieces are hung in sand blasting equipment, sand blasting is loaded into a spraying bin, then sand blasting operation is carried out after the sand blasting equipment is sealed, the sand blasting equipment is opened again after the sand blasting operation is finished, the workpieces subjected to sand blasting treatment are taken out, and meanwhile, used sand blasting is recovered, so that the next sand blasting operation is carried out.

The defects of the operation mode include that the operation efficiency is low, the sand blasting loading is time-consuming and labor-consuming, and when the workpiece is taken out, part of dust is scattered to the working environment from the sand blasting equipment.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a sand blasting system for spraying and removing dust by circulating water, which reduces the dust diffusion of sand blasting operation through air draft and recycles the dust-containing gas after dust removal through spraying.

The utility model provides a technical scheme that its technical problem adopted is:

a sand blasting treatment system for circulating water spraying dust removal comprises a sand blasting tunnel bin, a dust removal air suction opening and a sand particle spray gun which are arranged at the top of the inner side of the sand blasting tunnel bin, a high-pressure fan with an air outlet connected with the sand particle spray gun, and a spraying dust removal bin connected with an air inlet of the high-pressure fan; the top of the spraying dust removal bin is provided with a dust removal spraying head used for spraying water, the upper end of the side face of the spraying dust removal bin is provided with a dust removal gas outlet, the lower end of the side face of the spraying dust removal bin is provided with a dust removal gas inlet, the air inlet of the high-pressure fan is communicated with the dust removal gas outlet, and the dust removal air suction opening is communicated with the dust removal gas inlet.

As a further improvement of the technical scheme, the device further comprises a spray water standing tank, wherein the spray water standing tank comprises a slurry settling part and a clarified water supply part, the slurry settling part and the clarified water supply part are separated by a standing clapboard, and the height of the upper end of the standing clapboard is lower than the height of the liquid level in the spray water standing tank; the bottom of the spraying dedusting bin is communicated with a spraying water discharge pipe, and the lower end of the spraying water discharge pipe is arranged at the slurry settling part; the dust removal shower head communicates spray water conveyer pipe, spray water conveyer pipe's lower extreme set up in clarification water supply portion.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a sand blasting system that circulating water sprays dust removal reduces the dust diffusion of sandblast operation through convulsions, recycles through spraying the gas that contains the dust after removing dust simultaneously, and high pressure positive blower both has been used for providing high-pressure draught for the sand grain spray gun, is used for providing convulsions negative pressure for dust removal convulsions simultaneously, and the great high velocity air flow of high pressure positive blower spun moisture also is favorable to reducing the production of dust.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a sand blasting system for spraying and dedusting by circulating water.

Detailed Description

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the present invention.

As shown in fig. 1, a sand blasting system for dust removal by circulating water spraying comprises a sand blasting tunnel bin 10, a dust removal air suction opening and a sand blasting gun 20 which are arranged at the top of the inner side of the sand blasting tunnel bin 10, a high pressure fan 30 with an air outlet connected with the sand blasting gun 20, and a spraying dust removal bin 33 connected with an air inlet of the high pressure fan 30; the top of the spraying dust removal bin 33 is provided with a dust removal spray header 331 for spraying water, the upper end of the side surface of the spraying dust removal bin 33 is provided with a dust removal gas outlet 332, the lower end of the side surface of the spraying dust removal bin 33 is provided with a dust removal gas inlet 333, the air inlet of the high-pressure fan 30 is communicated with the dust removal gas outlet 332, and the dust removal air suction opening is communicated with the dust removal gas inlet 333.

Specifically, the device further comprises a spray water standing tank, wherein the spray water standing tank comprises a slurry settling part 341 and a clarified water supply part 342, the slurry settling part 341 and the clarified water supply part 342 are separated by a standing partition plate 343, and the height of the upper end of the standing partition plate 343 is lower than the liquid level in the spray water standing tank; the bottom of the spraying dust removal bin 33 is communicated with a spraying water discharge pipe 334, and the lower end of the spraying water discharge pipe 334 is arranged at the slurry settling part 341; the dust removal shower head 331 is communicated with the shower water delivery pipe 35, and the lower end of the shower water delivery pipe 35 is disposed at the clarification water supply part 342.

Further, the both ends in sandblast tunnel storehouse 10 are provided with work piece inlet 13 and work piece outlet 14 respectively, work piece inlet 13 with be provided with between the work piece outlet 14 and pass the circulation transfer chain 11 in sandblast tunnel storehouse 10, 11 bottoms in circulation transfer chain are provided with the transport lifting hook 12 that is used for hanging the work piece, transport lifting hook 12 be a plurality of and equidistant set up in circulation transfer chain 11 is last. The dust-removing air suction opening comprises an inlet air suction opening 31 and an outlet air suction opening 32, a first dustproof baffle curtain 15 is arranged on the inner side of the workpiece inlet 13, and a second dustproof baffle curtain 16 is arranged on the outer side of the workpiece outlet 14.

Further, a sand recovery conical bottom 17 is arranged at the bottom of the sand blasting tunnel bin 10, the lowest point of the sand recovery conical bottom 17 is communicated with the bottom of a sand hoisting machine 21 through a sand recovery pipe 19, and the top of the sand hoisting machine 21 is arranged above a sand feeding bin 23. A sand rebounding barrier net 18 is arranged above the sand recovery conical bottom 17, and the sand rebounding barrier net 18 is horizontally arranged and is positioned below the circulating conveying line 11. The upper end of the sand spray gun 20 is connected with an air outlet of the high-pressure fan 30, the lower end of the sand spray gun 20 faces the sand blasting tunnel bin 10, the side surface of the sand spray gun 20 is communicated with the lower end of a sand feeding pipe 22, and the upper end of the sand feeding pipe 22 is connected with the sand feeding bin 23.

In operation, firstly, a workpiece is hung on the conveying hook 12 at the upstream of the sand blasting tunnel bin 10, then the workpiece is conveyed into the sand blasting tunnel bin 10 through the circulating conveying line 11, sand blasting guns 20 are used for blasting sand to the workpiece from a plurality of angles obliquely downwards like a conventional sand blasting device, part of sand directly passes through the sand rebounding barrier net 18 to enter the sand reclaiming pipe 19 during the downward movement of the sprayed sand, and part of sand impacts on the sand rebounding barrier net 18 to rebound, so that the workpiece is subjected to sand blasting operation from the bottom; since the downwardly ejected sand is large in quantity and kinetic energy and the upwardly rebounded sand is small in quantity and kinetic energy, the workpiece does not fall off the delivery hook 12 due to the rebounding of the lower sand.

The high-pressure fan 30 is used for providing high-pressure air flow for the sand spray gun 20, and simultaneously used for providing air draft negative pressure for the bin inlet air draft opening 31 and the bin outlet air draft opening 32, the spraying dust removal bin 33 is arranged between the bin inlet air draft opening 31 and the bin outlet air draft opening 32 and the high-pressure fan 30, dust is sprayed and removed, and high-speed air flow with large moisture sprayed by the high-pressure fan 30 is also beneficial to reducing dust generation.

The first dustproof curtain 15 and the second dustproof curtain 16 can adopt conventional rubber belt curtains, so that the dust in the sand blasting tunnel bin 10 can be prevented from diffusing outwards; the spray water settling tank includes the slurry settling part 341 and the clarified water supply part 342, which facilitates removal of part of large particles and high-density impurities in the spray water, thereby facilitating protection of the water supply pump system, and obviously, the slurry settling part 341 should have a proper length to ensure a sufficient distance between the lower end of the spray water discharge pipe 334 and the clarified water supply part 342, thereby achieving the purpose of settling and clarification.

While the preferred embodiments of the present invention have been described in detail, it is to be understood that the present invention may be embodied in other forms than those specifically described and that various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a sand blasting system that circulating water sprayed dust removal which characterized in that: the device comprises a sand blasting tunnel bin (10), a dust removal air suction opening and a sand particle spray gun (20) which are arranged at the top of the inner side of the sand blasting tunnel bin (10), a high-pressure fan (30) with an air outlet connected with the sand particle spray gun (20), and a spraying dust removal bin (33) connected with an air inlet of the high-pressure fan (30); the top that sprays dust removal storehouse (33) is provided with dust removal shower head (331) that are used for the water spray, the side upper end that sprays dust removal storehouse (33) is provided with dust removal gas outlet (332), the side lower extreme that sprays dust removal storehouse (33) is provided with dust removal gas inlet (333), the air intake intercommunication of high pressure positive blower (30) dust removal gas outlet (332), the dust removal suction opening intercommunication dust removal gas inlet (333).

2. A circulating water spray dedusting grit blasting system as in claim 1, wherein: the device also comprises a spray water standing tank, wherein the spray water standing tank comprises a slurry settling part (341) and a clarified water supply part (342), the slurry settling part (341) and the clarified water supply part (342) are separated by a standing partition plate (343), and the height of the upper end of the standing partition plate (343) is lower than the liquid level in the spray water standing tank; the bottom of the spraying dedusting bin (33) is communicated with a spraying water discharge pipe (334), and the lower end of the spraying water discharge pipe (334) is arranged on the slurry settling part (341); the dedusting spray header (331) is communicated with a spray water conveying pipe (35), and the lower end of the spray water conveying pipe (35) is arranged at the clarification water supply part (342).

3. A circulating water spray dedusting grit blasting system as claimed in claim 1 or 2, wherein: the both ends in sandblast tunnel storehouse (10) are provided with work piece inlet opening (13) and work piece outlet opening (14) respectively, work piece inlet opening (13) with be provided with between work piece outlet opening (14) and pass the circulation transfer chain (11) in sandblast tunnel storehouse (10), circulation transfer chain (11) bottom is provided with transport lifting hook (12) that are used for hanging the work piece, transport lifting hook (12) for a plurality of and equidistant set up in on circulation transfer chain (11).

4. A circulating water spray dedusting grit blasting system as in claim 3, wherein: the dust removal air suction opening comprises an inlet air suction opening (31) and an outlet air suction opening (32), a first dustproof baffle curtain (15) is arranged on the inner side of the workpiece inlet opening (13), and a second dustproof baffle curtain (16) is arranged on the outer side of the workpiece outlet opening (14).

5. A circulating water spray dedusting grit blasting system as in claim 3, wherein: the sand blasting tunnel is characterized in that a sand recycling conical bottom (17) is arranged at the bottom of the sand blasting tunnel bin (10), the lowest point of the sand recycling conical bottom (17) is communicated with the bottom of a sand hoisting machine (21) through a sand recycling pipe (19), and the top of the sand hoisting machine (21) is arranged above a sand feeding bin (23).

6. A circulating water spray dedusting grit blasting system as claimed in claim 5, wherein: a sand rebounding blocking net (18) is arranged above the sand recovering conical bottom (17), and the sand rebounding blocking net (18) is horizontally arranged and is located below the circulating conveying line (11).

7. A circulating water spray dedusting grit blasting system as claimed in claim 5, wherein: the upper end of the sand spray gun (20) is connected with an air outlet of the high-pressure fan (30), the lower end of the sand spray gun (20) faces the interior of the sand blasting tunnel bin (10), the side surface of the sand spray gun (20) is communicated with the lower end of a sand feeding pipe (22), and the upper end of the sand feeding pipe (22) is connected with the sand feeding bin (23).