CN220159557U - Device for efficiently recycling and separating dust of wet polishing and dedusting workbench - Google Patents

Abstract

The utility model discloses a device for efficiently recovering and separating dust of a wet polishing and dedusting workbench, which comprises a dedusting chamber and a filtering water tank, wherein an exhaust fan is arranged at the middle position of the top of the dedusting chamber, vortex nozzles are uniformly arranged on a lower spray pipe and an upper spray pipe, a dissolved air tank is horizontally arranged on the outer wall of one side of the filtering water tank, a dissolved air releaser is vertically arranged on one side, close to the dissolved air tank, of the filtering water tank, and a slag scraping machine is horizontally arranged at one end, far away from the dissolved air tank, of the top of the filtering water tank. According to the utility model, the dissolved air releaser is arranged in the water tank, the jet flow suction principle is utilized, the air is enabled to be dissolved into water to form supersaturated dissolved air water in a short time to the greatest extent through the high-speed movement of water flow at about 0.4MPa, a large number of microbubbles with the diameter of 5-10 mu m are released through subsequent decompression, and are combined with dust and fiber yarns in the water to form stable air-clamping flocs which float to the water surface together, so that the separation of flocs is completed.

Description

Device for efficiently recycling and separating dust of wet polishing and dedusting workbench

Technical Field

The utility model relates to the technical field of polishing and dedusting, in particular to a device for efficiently recycling and separating dust of a wet polishing and dedusting workbench.

Background

The wet polishing and dedusting workbench is a machine type integrating functions of a wet deduster and a polishing workbench, and is widely applied to dedusting working conditions in industries such as building materials, metallurgy, electric power, mechanical manufacturing, casting and the like. The wet polishing and dedusting workbench mainly comprises an outer box body, a centrifugal fan, a water pump and an electric control interlocking system, water and dust-containing gas are fully mixed under the centrifugal force of the fan, dust is separated from air flow under the actions of contact, impact and the like of the dust-containing gas and liquid drops or liquid films, and clean air is discharged. The wet polishing and dedusting workbench can purify solid particle pollutants in waste gas and also has the effect of gas cooling, has the characteristics of less equipment investment, simple structure, high purification efficiency and convenient installation and maintenance, is generally free of movable parts, is suitable for purifying non-fibrous and non-water chemical reactions and various dust without adhesion phenomenon, and is suitable for purifying high-temperature, inflammable, explosive and harmful gases. However, when retrieving the fibrous dust of polishing, the cellosilk that the process of polishing produced easily blocks up spiral nozzle to lead to circulating spray water can not atomizing, seriously reduce wet polishing dust removal workstation dust collecting efficiency, cause the dust to pile up in equipment and block up the defogging layer, increase equipment maintenance frequency, influence operation workman's result of use.

Disclosure of Invention

The utility model aims to provide a device for efficiently recovering and separating dust of a wet polishing and dedusting workbench, which is used for solving the problems that when fibrous dust is recovered and polished in the background art, fiber wires generated in a polishing procedure are easy to block a spiral nozzle, so that circulating spray water cannot be atomized, dust collection efficiency of the wet polishing and dedusting workbench is seriously reduced, dust is accumulated in equipment and a mist removing layer is blocked, equipment overhaul and maintenance frequency is increased, and the use effect of operators is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a device for wet polishing dust removal workstation dust high-efficient recovery separation, including clean room and filtration water tank, the intermediate position department at clean room top installs the exhaust fan, and filter cotton has been laid on the inside top of clean room, and the clean room inside of filter cotton below is provided with the baffling board, the inside intermediate position department level of clean room has arranged the shower, goes up the inside raschig ring that is provided with of clean room of shower below, and the inside level of clean room below has arranged down the shower, and all evenly installs vortex nozzle on shower and the last shower down, the below of clean room sets up the filtration water tank, and the intermediate position department of the inside bottom of filtration water tank installs the backwash pump, and Y type filter is installed to the input of backwash pump, the ball valve is installed to the output of backwash pump, the dissolved air jar is installed to the level on the outer wall of filter water tank one side, and the input of dissolved air jar communicates through pipeline and backwash pump, the inside one side vertical installation dissolved air release that is close to the dissolved air jar, and the input of dissolved air release is through pipeline and the output intercommunication of dissolved air jar, the filter water tank is kept away from the horizontal air tank of machine.

Preferably, both sides at the top of the dust removal chamber are respectively provided with an access hole and an explosion venting hole, the access hole is designed to facilitate the replacement of the filter cotton, the operation safety of equipment is considered, the explosion venting hole is designed, and when the pressure of the dust removal chamber exceeds 0.01MPa, the explosion venting hole automatically unloads explosion, so that personnel and the surrounding environment are protected from the threat of explosion pressure.

Preferably, the lower spray pipe and the upper spray pipe are arranged in a concentric ring shape, so that the spray effect of the spray area is ensured.

Preferably, a water inlet is arranged at a position, close to the dissolved air tank, on the outer wall of the filtering water tank, and a ball float valve is arranged in the water inlet and used for adjusting the water surface height in the filtering water tank.

Preferably, a clear water area is arranged at the bottom of one end inside the filtering water tank and used for containing clear water, a slag scraping groove is formed above one side of the clear water area, and the flocs floating to the water surface are discharged into the slag scraping groove through a zipper type slag scraping machine, so that the flocs are separated.

Preferably, the slag scraping groove is positioned right below the outlet end of the slag scraping machine, a downward-inclined guide plate is arranged on the outer wall of the top end of the slag scraping groove, water flow inside the slag scraping groove is convenient to overflow, and a downward-inclined anti-overflow plate is arranged on the inner wall of the slag scraping groove at the position of the guide plate, so that floating floccules are prevented from flowing into the filtering water tank along with the water flow.

Preferably, a water outlet is arranged on the side wall of the filtering water tank at the position of the slag scraping groove, and the height of the water outlet is higher than that of the bottom of the slag scraping groove, so that impurities precipitated at the bottom of the slag scraping groove are prevented from being discharged together.

Preferably, a filter screen is horizontally arranged on the outer wall of the clear water area right below the slag scraping groove, the filter screen is positioned above the Y-shaped filter, the mesh number of the filter screen is 18 meshes, circulating water intercepts large-particle sludge through the 18-mesh filter screen, a filter cake layer is formed on the outer surface of the filter screen to further intercept small-particle sludge, and residual small-particle sludge in the circulating water is intercepted through the Y-shaped filter with a built-in 30-mesh filter screen, so that long-term stable operation of a reflux pump is ensured.

Preferably, one end of the Y-shaped filter is communicated with the interior of the clean water area through a conduit.

Compared with the prior art, the utility model has the beneficial effects that: the air is dissolved into water to form supersaturated dissolved air water in a short time to a large extent by the high-speed movement of water flow under the working pressure of about 0.4MPa by using a jet flow suction principle, and a large number of microbubbles with the diameter of 5-10 mu m are released by subsequent decompression to combine with dust and fiber filaments in water to form stable air-clamping flocs which float to the water surface together, so that the separation of flocs is completed; meanwhile, the vortex nozzle is adopted on the spray pipe in the dust removal chamber, so that the filament winding nozzle can be avoided, stable water mist is formed to continuously spray, the dust-containing air flow and water are fully mixed, the dust collection efficiency is greatly improved, the equipment blocking period is delayed, the shutdown maintenance frequency of the wet polishing dust removal workbench is reduced, and the dust removal device has good environmental benefit and economic benefit.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is a schematic top view of the shower of the present utility model in position.

In the figure: 1. a Y-type filter; 2. a reflux pump; 3. a ball valve; 4. a dissolved air releaser; 5. a dissolved air tank; 6. a float valve; 7. a water inlet; 8. a water outlet; 9. a slag scraping groove; 10. a slag scraping machine; 11. a swirl nozzle; 12. a lower spray pipe; 13. a raschig ring; 14. a spray pipe is arranged; 15. a baffle plate; 16. filtering cotton; 17. an access opening; 18. an exhaust fan; 19. explosion venting ports; 20. a dust removal chamber; 21. a filter water tank; 22. a filter screen; 23. and a clear water area.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

Referring to fig. 1-2, an embodiment of the present utility model is provided: the device for efficiently recovering and separating dust of a wet polishing and dedusting workbench comprises a dedusting chamber 20 and a filtering water tank 21, wherein an exhaust fan 18 is arranged in the middle position of the top of the dedusting chamber 20, polishing dust is sucked into the dedusting chamber 20 under the action of negative pressure of the exhaust fan 18, two sides of the top of the dedusting chamber 20 are respectively provided with an overhaul port 17 and an explosion venting port 19, the overhaul ports 17 are designed to facilitate the replacement of filter cotton 16, the explosion venting ports 19 are designed in consideration of equipment operation safety, and when the pressure of the dedusting chamber 20 exceeds 0.01MPa, the explosion venting ports 19 automatically discharge explosion to protect personnel and surrounding environment from the threat of explosion pressure;

the filter cotton 16 is paved at the top end of the interior of the dust chamber 20, the baffle plate 15 is arranged in the dust chamber 20 below the filter cotton 16, the upper spray pipe 14 is horizontally arranged in the middle position of the interior of the dust chamber 20, the Raschig ring 13 is arranged in the interior of the dust chamber 20 below the upper spray pipe 14, the lower spray pipe 12 is horizontally arranged in the interior of the dust chamber 20 below the Raschig ring 13, vortex nozzles 11 are uniformly arranged on the lower spray pipe 12 and the upper spray pipe 14, the flow passage of the vortex nozzles 11 is large, the filter is not easy to be blocked by fiber, the smoothness is good, the wear resistance is good, the nozzle maintenance frequency can be greatly reduced, and the lower spray pipe 12 and the upper spray pipe 14 are concentrically arranged;

a filtering water tank 21 is arranged below the dust chamber 20, a reflux pump 2 is arranged at the middle position of the bottom end inside the filtering water tank 21, a Y-shaped filter 1 is arranged at the input end of the reflux pump 2, a 30-mesh wire mesh is arranged inside the Y-shaped filter 1, a ball valve 3 is arranged at the output end of the reflux pump 2 and used for adjusting the water flow speed, a dissolved air tank 5 is horizontally arranged on the outer wall of one side of the filtering water tank 21, the input end of the dissolved air tank 5 is communicated with the output end of the reflux pump 2 through a pipeline, high-speed water flow of the reflux pump 2 enters the dissolved air tank 5, and is mixed and dissolved with compressed air of about 0.4MPa to form supersaturated dissolved air water to a large extent in a short time, a large amount of microbubbles with diameters of 5-10 mu m are released through a dissolved air releaser 4 in a decompression mode, and are combined with dust and fiber filaments in sewage to form stable air-clamping floccules in the process of rising the microbubbles, and float to the water surface together;

a water inlet 7 is arranged on the outer wall of the filtering water tank 21 at a position close to the dissolved air tank 5, and a ball float valve 6 is arranged in the water inlet 7 and used for adjusting the water surface height in the filtering water tank 21;

a dissolved air releaser 4 is vertically arranged at one side of the inside of the filtering water tank 21, which is close to the dissolved air tank 5, and the input end of the dissolved air releaser 4 is communicated with the output end of the dissolved air tank 5 through a pipeline, and a slag scraping machine 10 is horizontally arranged at one end of the top of the filtering water tank 21, which is far away from the dissolved air tank 5;

the bottom of one end of the inside of the filtering water tank 21 is provided with a clear water area 23, one end of the Y-shaped filter 1 is communicated with the inside of the clear water area 23 through a conduit, a scum scraping groove 9 is arranged above one side of the clear water area 23, and flocs floating on the water surface are discharged into the scum scraping groove 9 through a zipper type scum scraping machine 10, so that the flocs are separated;

the slag scraping groove 9 is positioned right below the outlet end of the slag scraper 10, a downward inclined guide plate is arranged on the outer wall of the top end of the slag scraping groove 9, so that water flow inside the slag scraping groove 9 overflows conveniently, and a downward inclined overflow prevention plate is arranged on the inner wall of the slag scraping groove 9 at the position of the guide plate, so that floating floccules are prevented from flowing into the filtering water tank 21 along with the water flow;

a water outlet 8 is arranged on the side wall of the filtering water tank 21 at the position of the slag scraping groove 9, and the height of the water outlet 8 is higher than the height of the bottom of the slag scraping groove 9, so that impurities deposited at the bottom of the slag scraping groove 9 are prevented from being discharged together;

a filter screen 22 is horizontally arranged on the outer wall of a clear water area 23 right below the slag scraping groove 9, the mesh number of the filter screen 22 is 18, the filter screen 22 is positioned above the Y-shaped filter 1, circulating water intercepts large-particle sludge through the 18-mesh filter screen 22, a filter cake layer is formed on the outer surface of the filter screen 22 to further intercept small-particle sludge, and residual small-particle sludge in the circulating water is intercepted through the Y-shaped filter 1 internally provided with a 30-mesh screen, so that long-term stable operation of the reflux pump 2 is ensured.

When the embodiment of the utility model is used, the following steps are adopted: under the negative pressure of an exhaust fan 18, polishing dust is pumped into a dust removal chamber 20, pre-sprayed by a lower spray pipe 12, wet dust-containing waste gas enters a Raschig ring 13, spray water atomized by an upper spray pipe 14 forms a liquid film on the surface of the Raschig ring 13, dust particles are trapped by contact with the liquid film on the surface of the Raschig ring 13 when the dust-containing waste gas flows through gaps of the Raschig ring 13, flow downwards along the surface of the Raschig ring 13 and enter a filtering water tank 21, ascending dust-containing air flow and descending circulating water are continuously contacted in the Raschig ring 13, the dust concentration in the ascending dust-containing air flow is lower and lower, the discharge requirement is met when the dust concentration reaches the upper layer of the Raschig ring 13, and water mist in the ascending air flow is intercepted by a baffle plate 15 and filtering cotton 16 and then discharged after reaching the standard; compared with a conventional spiral nozzle, the vortex nozzle 11 is adopted on the lower spray pipe 12 and the upper spray pipe 14, the circulation channel of the vortex nozzle 11 is large, the vortex nozzle is not easy to be blocked by fiber wires, the smoothness is good, the abrasion resistance is high, the maintenance frequency of the nozzle can be greatly reduced, the maintenance is convenient, the maintenance hole 17 is designed at the top of the dust chamber 20, the filter cotton 16 is convenient to replace, the equipment operation safety is considered, the explosion venting hole 19 is designed, when the pressure of the dust chamber 20 exceeds 0.01MPa, the explosion venting hole 19 is automatically detached, and personnel and the surrounding environment are protected from the threat of explosion pressure;

the high-efficiency dissolved air flotation system is arranged in the filtering water tank 21 and consists of a Y-type filter 1, a reflux pump 2, a dissolved air releaser 4, a dissolved air tank 5, a ball float valve 6, a water inlet 7, a slag scraping groove 9 and a slag scraping machine 10, integrates the functions of water inlet, air flotation, separation, water collection and water outlet, and the circulating water intercepts large-particle sludge through a filter screen 22 with 18 meshes, a filter cake layer is formed on the outer surface of the filter screen 22 to further intercept small-particle sludge, and then intercepts residual small-particle sludge in the circulating water through the Y-type filter 1 internally provided with a 30-mesh screen, so that the reflux pump 2 can stably operate for a long time; the flow rate of the water discharged by the reflux pump 2 is regulated by the opening of the ball valve 3, the high-speed water flow output by the reflux pump 2 enters the dissolved air tank 5, is mixed and dissolved with compressed air of about 0.4MPa to form supersaturated dissolved air water to a large extent in a short time, and a large amount of microbubbles with diameters of 5-10 mu m are released by decompression of the dissolved air releaser 4, and are combined with dust and fiber yarns in sewage to form stable air-clamping flocs in the rising process of the microbubbles, so that the air-clamping flocs float to the water surface together, the height of the water surface is regulated by the water inlet 7 and the ball float valve 6, and the flocs float to the water surface are discharged into the slag scraping tank 9 by the zipper type slag scraping machine 10, so that the separation of the flocs is completed.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. A device that is used for wet-type dust removal workstation dust high efficiency to retrieve separation, its characterized in that: including dust collecting chamber (20) and filtration water tank (21), exhaust fan (18) are installed to the intermediate position department at dust collecting chamber (20) top, and filter cotton (16) have been laid on the top of dust collecting chamber (20) inside, and filter cotton (16) below dust collecting chamber (20) inside is provided with baffle (15), upper spray pipe (14) have been arranged to the intermediate position department level of dust collecting chamber (20) inside, and upper spray pipe (14) below dust collecting chamber (20) inside is provided with raschig's ring (13), and lower spray pipe (12) have been arranged to the dust collecting chamber (20) inside level of raschig's ring (13) below, and on lower spray pipe (12) and upper spray pipe (14) both evenly install vortex nozzle (11), the below of dust collecting chamber (20) sets up filtration water tank (21), and reflux pump (2) are installed to the intermediate position department of filter water tank (21) inside bottom, and Y type filter (1) are installed to the input of reflux pump (2), and ball valve (3) are installed to the output of reflux pump (2), the output of side of filter water tank (21) is installed to one side level and is passed through air tank (5) and is connected with the output of air tank (5), the utility model discloses a slag scraping machine, including filtering water tank (21), dissolved air releaser (4) are vertically installed to one side that is close to dissolved air tank (5) inside filtering water tank (21), and the input of dissolved air releaser (4) is through pipeline and the output intercommunication of dissolved air tank (5), one end level that dissolved air tank (5) was kept away from at filtering water tank (21) top is installed and is scraped sediment machine (10).

2. The device for efficient dust recovery and separation of a wet polishing and dedusting workbench according to claim 1, wherein the device comprises: two sides of the top of the dust removal chamber (20) are respectively provided with an access hole (17) and an explosion venting hole (19).

3. The device for efficient dust recovery and separation of a wet polishing and dedusting workbench according to claim 1, wherein the device comprises: the lower spray pipe (12) and the upper spray pipe (14) are arranged in concentric rings.

4. The device for efficient dust recovery and separation of a wet polishing and dedusting workbench according to claim 1, wherein the device comprises: a water inlet (7) is formed in the outer wall of the filtering water tank (21) and close to the dissolved air tank (5), and a ball float valve (6) is arranged in the water inlet (7).

5. The device for efficient dust recovery and separation of a wet polishing and dedusting workbench according to claim 1, wherein the device comprises: the bottom of the inner end of the filtering water tank (21) is provided with a clear water area (23), and a slag scraping groove (9) is arranged above one side of the clear water area (23).

6. The device for efficient dust recovery and separation of a wet polishing and dusting bench according to claim 5, wherein: the slag scraping groove (9) is positioned right below the outlet end of the slag scraping machine (10), a downward-inclined guide plate is arranged on the outer wall of the top end of the slag scraping groove (9), and a downward-inclined spill-proof plate is arranged on the inner wall of the slag scraping groove (9) at the position of the guide plate.

7. The device for efficient dust recovery and separation of a wet polishing and dusting bench according to claim 5, wherein: the side wall of the filtering water tank (21) at the position of the slag scraping groove (9) is provided with a water outlet (8), and the height of the water outlet (8) is higher than that of the bottom of the slag scraping groove (9).

8. The device for efficient dust recovery and separation of a wet polishing and dusting bench according to claim 5, wherein: a filter screen (22) is horizontally arranged on the outer wall of a clear water area (23) right below the slag scraping groove (9), and the filter screen (22) is positioned above the Y-shaped filter (1).

9. The device for efficient dust recovery and separation of a wet polishing and dusting bench according to claim 5, wherein: one end of the Y-shaped filter (1) is communicated with the interior of the clean water area (23) through a conduit.