CN204601893U - Welding dust arrester - Google Patents

Abstract

The utility model belongs to the technical field of auxiliary equipment for welding processes, specifically relates to a dust removal device used in the welding process, and aims to provide a welding fume purification device with high fume purification rate and reusable purified water; the specific technical scheme is: The welding dust removal device includes a box body. The upper part of the box body is sealed by the upper cover. The inside of the box body is divided into a cleaning part and a filter part located below the cleaning part. The cleaning part includes a water flow partition, a water flow partition, and four parts of the box body. The side wall and the upper cover together form a dust suction chamber through which smoke and dust can pass. One end of the dust suction chamber is provided with an air inlet, and the opposite end is provided with an air exhaust port. The filter part includes multi-stage sedimentation tanks, The filter tank and the clean water tank are connected by overflow boards between adjacent tank bodies. The overflow board between the multi-stage sedimentation tanks is higher than the overflow board between the sedimentation tank and the filter tank. The bottom of the filter tank is connected to the bottom of the clean water tank. Connected, the clean water in the clean water tank is sent to the spray nozzle through the water pump.

Description

Welding dust removal device

technical field

The utility model belongs to the technical field of auxiliary equipment of the welding process, and in particular relates to a dust removal device used in the welding process.

Background technique

With the rapid development of my country's manufacturing industry, the proportion of welding in industrial processing continues to expand. However, a large amount of welding fume is produced during the welding process. The welding fume contains a large amount of harmful particles mainly composed of metal oxides. Long-term inhalation of high-concentration welding fume can cause welding occupational diseases represented by pneumoconiosis. At present, the way to deal with the welding fumes of multiple welding stations in the riveting and welding workshop is to install air inlets on the top of the three rooms above each welding station. Protrude into the air so that the collected welding fume is discharged directly to the outside. If the suction port of the air collecting pipe of this kind of ventilation pipe is generally set on the top of the welding station, the inhalation of welding fume is limited, and most of the welding fume cannot be discharged, which will endanger the health of workers; in addition, the way of direct discharge of welding fume The dust removal effect is poor, causing pollution to the ambient air.

Utility model content

The utility model overcomes the shortcomings of the prior art and aims to provide a welding fume purification device with high fume purification rate, recyclable purified water and low consumption of purified water.

In order to solve the above technical problems, the technical solution adopted by the utility model is: welding dust removal device, including a box body, the upper part of the box body is sealed by an upper cover, and the inside of the box body is divided into a cleaning part and a filter part located below the cleaning part. The part includes the water flow baffle, the water flow baffle, the four side walls of the box and the upper cover together form a dust suction chamber through which the smoke and dust can pass. One end of the dust suction chamber is provided with an air inlet, and the opposite end is provided with a The air outlet and the upper layer of the water flow partition are equipped with multiple spray nozzles. The nozzles of the multiple spray nozzles are all set towards the upper cover of the box body. The water flow partition is arranged inclined along the direction from the air inlet to the air outlet. The end near the air outlet is higher than the end near the air inlet;

The filtering part includes multi-stage sedimentation tanks, filter tanks and clear water tanks arranged in sequence. Adjacent tanks are connected by overflow plates, and the overflow plates between multi-stage sedimentation tanks are higher than the overflow water between the sedimentation tanks and filter tanks. The middle part of the filter tank is provided with a sandstone filter layer, the bottom of the filter tank is connected with the bottom of the clear water tank, and the clear water in the clear water tank is delivered to the spray nozzle by a water pump.

Wherein, a plurality of windshields are vertically arranged in the dust suction chamber, and the height of the windshields is less than the height between the water flow partition and the upper cover where the windshields are set, and one of the two adjacent windshields is the same as the The water flow partition is close to the top cover, and the other is close to the top cover. A vent is formed between the upper end of the windshield that is close to the water flow partition and the top cover, and the gap between the lower end of the windshield that is close to the top cover and the water flow partition form a vent.

Wherein, the water flow partition is a flat plate, and a plurality of water pipes are arranged in parallel on the upper surface of the flat plate, and a plurality of spray nozzles are connected with the plurality of water pipes.

Wherein, the water flow partition is a flat plate, and a plurality of water pipes are arranged in parallel on the lower surface of the flat plate, and a plurality of spray nozzles pass through the flat plate and communicate with the plurality of water pipes.

Wherein, the water flow partition is a double-layer board, and the upper layer of the double-layer board is equipped with a plurality of corrugated water tanks, and a plurality of spray nozzles are connected with the plurality of corrugated water tanks.

Wherein, the clear water tank is also connected with an automatic water replenishment device, and the automatic water replenishment device includes a tap water pipe, and the tap water pipe is connected with the clean water tank through an automatic water replenishment valve.

Wherein, the automatic replenishment valve is a float valve.

Wherein, the air inlet and/or the air outlet are connected with induced draft fans.

Among them, a porous fog-proof partition and an activated carbon filter plate are installed between the dust collection chamber and the air outlet. side.

Among them, the bottoms of the sedimentation tanks at all levels are connected with blowdown valves.

Compared with the prior art, the utility model has the following beneficial effects.

1. The welding fume purification device of this utility model adopts multi-stage spray wet method to remove dust, and the spraying direction of water mist is roughly orthogonal to the direction of airflow movement, and the removal rate of dust is as high as 99%.

2. The welding fume purification device of this utility model is equipped with a water circulation sedimentation filtration system, and the dust-removed water undergoes multi-stage precipitation and is recycled after filtration to achieve the purpose of saving water resources and protecting the living environment of human beings.

3. The welding fume purification device of this utility model is equipped with an automatic water replenishment device. When the water level in the clear water tank is lower than the set value, the automatic water replenishment device will open the valve and automatically replenish water without manual attention and operation. It is not only convenient to use, but also saves manpower , and the water replenishment control is timely and accurate, it is more practical and cost-effective in use, and it does have industrial utilization value, which is suitable for extensive promotion and use in the industry. The welding fume purifying device of the utility model is indeed more technically progressive than the existing similar devices, and has improved multiple effects compared with the existing devices.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of Fig. 1, showing the structure of the water flow partition.

FIG. 3 is a side view of FIG. 1 .

Detailed ways

The utility model is described in further detail now in conjunction with the accompanying drawings. The accompanying drawing is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the configuration relevant to the utility model.

As shown in Figures 1-3, the welding dust removal device of the preferred embodiment of the present invention includes a box body 2 with an upper cover 1, a plurality of atomized water spray nozzles 3 connected in series in the box body 2 The clean room and the suction and exhaust system are equipped with a water circulation sedimentation filtration system, which includes: a multi-stage sedimentation tank 4, a filter tank 5 and a clean water tank 6 arranged in sequence, and the clean water tank 6 is connected by a pipeline Water pump 7 with spray nozzle 3.

The air suction and exhaust system of the utility model sucks the air containing a large amount of harmful and toxic fumes from the welding construction site from one end of the box body 2, and discharges it from the other end of the box body 2. The smoke and dust air sucked generally flows through multiple The atomized water purification chamber with spray nozzle 3 is connected in series, part of the toxic gas is melted into the water mist, the solid smoke absorbs the water mist to form large water droplets and falls, enters the multi-stage sedimentation tank 4 for precipitation, and the precipitated water passes through the filter tank 5 Filtration enters the clear water tank 6, and the water pump 7 pumps the clear water in the clear water tank 6 into the spray nozzle 3 to form water mist. Since the spraying direction of the water mist is orthogonal to the direction, the purification rate of the air is improved, and the purification rate is as high as 99%; Since the water is recycled, it achieves the purpose of saving water resources and protecting the living environment.

As shown in Figure 1, the plurality of series-connected atomized water purification chambers of the present invention include: a water flow partition 8 arranged obliquely on the upper part of the box body 2, a plurality of water flow partitions arranged on the upper surface of the water flow partition 8 The upward spray nozzle 3 and a plurality of windshields 9 separating the space between the water flow partition 8 and the upper cover 1 are formed. In order to prolong the flow of the air flow and increase the contact with the water mist, Ventilation openings 10 are arranged at intervals between the wind plate 9 and the water flow partition 8 or the upper cover 1 respectively, that is, the height of the windshield 9 is smaller than the distance between the water flow partition 8 at the windshield 9 and the upper cover 1. The height between them, and one of the two adjacent windshields 9 is in close contact with the water flow partition 8, and the other is in close contact with the upper cover 1, so that the air sometimes flows upwards and sometimes downwards in a waveform, as shown in Figure 1. direction indicated by the arrow.

As shown in Figure 1 and Figure 2, the water flow partition 8 inclined at the top of the box body 2 can have various embodiments, one of which is that both sides are sealed with the side walls of the box body 2, and the two ends are inclined. A flat plate 81, the upper surface of the flat plate 81 is provided with a plurality of parallel and equally inclined water pipes 82, and each water pipe 82 is provided with a plurality of upward spray nozzles 3; or the lower surface of the flat plate 81 is provided with a plurality of Parallel and equally inclined water pipes, each water pipe is provided with a plurality of upward spray nozzles passing through the flat plate 81; or the inclined water flow partition arranged on the upper part of the box body 2 is a double-layer plate sealed around, Its two sides are sealed with the side wall of the box body, and the upper layer of the double-layer board is punched with multiple corrugated water tanks, and the top of each corrugated water tank is provided with a plurality of upward spray nozzles 3 .

The plurality of atomized water purification chambers connected in series and the suction and exhaust systems are arranged on the top of the box body 2; the water flow partition 8 inclined on the top of the box body is provided with multiple parts of the water circulation filter system. Stage sedimentation tank 4, filter tank 5 and clean water tank 6.

The multi-stage settling tank 4 has at least two stages, overflow plates 11 and 12 are arranged between the multi-stage settling tank 4 and the filter tank 5, the first-stage settling tank 41 and the second-stage settling tank 42 The height of the overflow plate 11 between is higher than the height of the overflow plate 12 between the second stage sedimentation tank 42 and the filter tank 5, and the bottom of the filter tank 5 communicates with the clear water tank 6; The first-stage settling tank 41 is located at the lower end of the water flow partition 8 . The water mist sprayed upwards from the spray nozzle 3 on the water flow partition 8 combines with the smoke to form a large drop of water, and the large drop of water falls back on the water flow partition 8, flows from the high end to the low end, and enters the first-stage sedimentation tank 41. After the water level in the first-stage settling tank precipitation 41 exceeds the height of the overflow plate 11 between the first-stage settling tank 41 and the second-stage settling tank 42, it flows into the second-stage settling tank 42 for further precipitation; After the water level in the second-stage settling tank 42 exceeds the height of the overflow plate 12 between the second-stage settling tank 42 and the filter tank 5, it flows into the filter tank 5, and sand is housed in the filter tank 5. Stone filter layer, filtered clear water flows into the clear water tank 6 by the bottom of the filter tank 5. The water pump 7 pumps clear water into the spray nozzle 3 under high pressure to form a water mist to be sprayed out for continuous recycling.

The clear water tank 6 is provided with an automatic water replenishment device, and the automatic water replenishment device includes a tap water pipe and an automatic water replenishment valve, and the tap water replenishment pipe is connected to the clear water tank through the automatic water replenishment valve.

As shown in Figure 1, the automatic water replenishment valve is a float valve 13, and a solenoid valve can also be used to add a water level switch. The float valve 13 is adopted as a mechanical automatic water replenishment valve without a control circuit. If a solenoid valve is used to add water level, a control circuit is required.

The suction and exhaust system is on the side of the box body 2, and the two ends of a plurality of atomized water purification chambers connected in series are respectively provided with an air inlet 14 and an air outlet 15, and the air inlet 14 and/or Or the blower fan 16,17 that is used for drawing phoenix is provided on the air outlet 15. Described blower blower can be a blower fan, is installed in air inlet 14 or air outlet 15, also can be two fans 16,17, is installed in described air inlet 14 and air outlet 15 respectively, specifically depending on the required power size.

As shown in Figures 1 and 3, the bottoms of the sedimentation tanks at all levels are provided with blowdown valves 18, which are opened periodically to discharge the sludge deposited at the bottom of the sedimentation tanks. The sand filter layer in the filter tank also needs to be cleaned regularly.

In order to prevent water mist from being sucked into the exhaust fan 17, the front of the exhaust fan 15 is provided with a porous mist-blocking partition 19. In order to further absorb toxic gases, an activated carbon filter plate 20 is also provided between the air outlet 15 and the porous mist-repelling partition 19 .

The above embodiments of the utility model have been described in detail in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiments. Make various changes below.

Claims (10)

1. The welding dust removal device is characterized in that it includes a box body, the upper part of the box body is sealed by an upper cover, the inside of the box body is divided into a cleaning part and a filter part located below the cleaning part, and the cleaning part includes a water flow partition , the water flow partition, the four side walls of the box and the upper cover together form a dust suction chamber through which smoke and dust can pass. One end of the dust suction chamber is provided with an air inlet, and the opposite end is provided with an air exhaust port. The upper layer of the water flow partition is provided with a plurality of spray nozzles, and the nozzles of the plurality of spray nozzles are all set towards the upper cover of the box body. The water flow partition is arranged obliquely along the direction from the air inlet to the air exhaust port. The end of the plate near the air outlet is higher than the end near the air inlet; The filtering part includes a multi-stage settling tank, a filter tank and a clear water tank arranged in sequence, and the adjacent tanks are connected by overflow plates, and the overflow plates between the multi-stage settling tanks are higher than the settling tank and the filter tank. Between the overflow plate, the middle part of the filter tank is provided with a sandstone filter layer, the bottom of the filter tank is connected with the bottom of the clear water tank, and the clear water in the clear water tank is delivered to the spray nozzle by a water pump. 2. The welding dust removal device according to claim 1, characterized in that, a plurality of windshields are vertically arranged in the dust suction chamber, and the height of the windshields is smaller than that of the water flow partition at the place where the windshield is set and the upper The height between the covers, and one of the two adjacent windshields is in close contact with the water flow partition, and the other is in close contact with the upper cover, forming a ventilation between the upper end of the windshield that is in close contact with the water flow partition and the upper cover. The air vent is formed between the lower end of the windshield that is close to the upper cover and the water flow partition. 3. The welding dust removal device according to claim 2, characterized in that, the water flow partition is a flat plate, and the upper surface of the flat plate is provided with a plurality of water pipes in parallel, and the plurality of spray nozzles communicate with the plurality of water pipes . 4. The welding dust removal device according to claim 2, wherein the water flow partition is a flat plate, and the lower surface of the flat plate is provided with a plurality of water pipes in parallel, and the plurality of spray nozzles pass through the flat plate and connect with the plurality of water pipes. The root water pipes are connected. 5. The welding dust removal device according to claim 2, characterized in that, the water flow partition is a double-layer board, and the upper layer of the double-layer board has a plurality of corrugated water tanks, and the plurality of spray nozzles are connected with a plurality of corrugated water tanks. The corrugated sink is connected. 6. The welding dust removal device according to any one of claims 3, 4 or 5, characterized in that, an automatic water replenishment device is also connected in the clear water tank, and the automatic water replenishment device includes a running water pipe, and the running water pipe It is connected with the clean water tank through the automatic replenishment valve. 7. The welding dust removal device according to claim 6, characterized in that, the automatic replenishment valve is a float valve. 8. The welding dust removal device according to claim 7, characterized in that, the air inlet and/or the air outlet are connected with an induced draft fan. 9. The welding dust removal device according to claim 8, characterized in that, between the dust suction chamber and the air outlet, a porous fog-proof partition and an activated carbon filter plate are installed, and the porous fog-proof partition is set On the side close to the dust collection chamber, the activated carbon filter plate is arranged on the side close to the air exhaust port. 10. The welding dust removal device according to claim 9, characterized in that, the bottoms of the sedimentation tanks at all levels are connected with blowdown valves.