CN206434989U - One kind weldering cigarette filtration machine - Google Patents

Abstract

The utility model discloses a welding fume filter, which comprises a main machine box and a centrifugal fan arranged in the main machine box. There is a box air inlet connected with the air intake chamber and a box air outlet connected with the exhaust chamber on the top. There is a metal filter in the air intake chamber, and the metal filter is located higher than the air inlet of the box. position, at least three universal casters are provided at the bottom of the main chassis. The beneficial effects of the utility model are: the welding fume can be processed according to different positions, the flexibility is good, the welding fume can be effectively filtered and separated, and the processed gas can be discharged, and the treatment efficiency is high and the effect is good.

Description

A welding fume filter

technical field

The utility model belongs to the technical field of welding fume processing equipment, in particular to a welding fume filter.

Background technique

In the welding workshop, various welding operations will produce a large amount of welding fumes. If the human body inhales welding fumes in large quantities or for a long time, it will seriously affect the health. Inhalation of welding fumes into the lungs will easily lead to lung diseases, and at the same time, it will irritate the eyes of workers. , affecting eyesight, working in a workshop full of welding fumes for a long time, causing great physical and mental harm to workers. When the concentration of welding fume in the welding workshop is too high, the visibility of the workshop will be affected, and safety accidents will easily occur.

In order to remove dust in the welding workshop and protect the physical and mental health of the workers, some simple dust removal equipment is currently used in the welding workshop. Including the body, the smoke removal chamber and the suction device, the suction device is a universal suction arm, the universal suction arm is set above the body, including a rotating shaft and a hose for rotating connection with the body, and the hose is set There are first connecting rod, second connecting rod, third connecting rod and fourth connecting rod, the first connecting rod is connected at the center of the rotating shaft, the other end of the first connecting rod is hinged with the first connecting block, and the first A second connecting rod and a third connecting rod are hinged on the connecting block, wherein a first spring is installed between the first connecting block and the third connecting rod, and the other ends of the second connecting rod and the third connecting rod are connected to the second connecting block. Hinged, the universal suction arm in this device adopts a hinged connection method of multiple stainless steel connecting rods and connecting blocks, which ensures that the suction hood connected to the universal suction arm can rotate at any angle and move in any direction, making the device The device works more flexibly and has stronger adaptability. However, the current welding fume treatment devices are still lacking in terms of flexibility of use, adaptability to the working environment, and treatment effects.

Utility model content

The utility model aims at overcoming the deficiencies in the prior art, and provides a welding fume treatment for different positions, which has good flexibility, can effectively filter and separate the welding fumes, and discharge the processed gas, and has high processing efficiency. High-efficiency welding fume filter with good effect.

In order to achieve the above object, the utility model adopts the following technical solutions:

A welding fume filter, comprising a main machine box and a centrifugal fan arranged in the main machine box, the main machine box is provided with a dust collection chamber, an air inlet chamber and an air outlet chamber in sequence from bottom to top, and the main machine box is provided with a The air cavity is connected to the air inlet of the box and the air outlet of the box is connected to the exhaust cavity. The centrifugal fan includes a volute, an impeller in the volute and a motor for driving the impeller. The volute is provided with an opening facing The lower air inlet and the opening are facing the air outlet of the air outlet of the box body. There is a metal filter in the air inlet cavity. The metal filter is located below the air inlet. The metal filter is located higher than the air inlet of the box. , There are at least three universal casters at the bottom of the main chassis.

Preferably, the bottom surface of the main box is rectangular, and the number of universal casters provided on the bottom of the main box is four, and the four universal casters are respectively located at the four corners of the bottom surface of the main box.

Preferably, a sound-absorbing cotton layer is provided on the side wall of the air outlet chamber.

Preferably, an electronic dust collector is provided in the air inlet cavity, and the electronic dust collector is located between the metal filter screen and the air inlet.

Preferably, the dust collection chamber is arranged in a dust collection drawer with an open upper end, the dust collection drawer is slidingly connected to the main chassis, the sliding direction of the dust collection drawer is horizontal, and a push-pull handle is provided on the dust collection drawer.

As a preference, the air intake cavity is provided with a graded filter aid device under the filter screen, the graded filter aid device includes a rotating disk driven by a motor and a plurality of filter aid plates arranged on the rotating disk, the rotating disk is arranged horizontally , each filter-aid plate is distributed in sequence along the circumference of the rotating disk, the filter-aid plates are arranged horizontally, the vertical projection of the graded filter-aid device is a circular surface, and among the two adjacent filter-aid plates in the circumferential direction of the rotating disk: one filter-aid The bottom surface of the plate is higher than the top surface of another filter aid plate.

Preferably, the motor is coaxially connected to the rotating disk through a vertically arranged linkage shaft, the output shaft of the motor is connected to one end of the linkage shaft, the other end of the linkage shaft is connected to the top surface of the rotation disk, the linkage shaft passes through the filter screen and the linkage shaft and the filter screen rotation fit between.

As a preference, the air intake cavity is provided with a dust isolation tube, the upper and lower ends of the dust isolation tube are open, and the dust isolation tube and the rotating disk are arranged coaxially, and an edge dust fall channel is formed between the dust isolation tube and the inner wall of the air intake cavity. , the upper end of the dust isolation box is lower than the graded filter aid device, and the lower end opening of the dust isolation box communicates with the air outlet of the box body through the air inlet pipe.

Preferably, two upper plates arranged vertically are arranged on the top surface of the filter aid plate, the length direction of the upper plates is perpendicular to the axis of the rotating disk, and the upper plate is arranged between the two upper plates on the top surface of one filter aid plate to form a Falling dust quick separation tank.

As a preference, two vertically arranged lower plates are arranged on the bottom surface of the filter aid plate, the length direction of the lower plates is perpendicular to the axis of the rotating disk, and a dust lift is formed between the two lower plates arranged on the bottom surface of a filter aid plate. Quick release tank.

The beneficial effects of the utility model are: the welding fume can be processed according to different positions, the flexibility is good, the welding fume can be effectively filtered and separated, and the processed gas can be discharged, the treatment efficiency is high and the effect is good; The device can be divided into multi-stage and multi-stage welding fume to separate the dust and impurities in the welding fume, and finally collect them uniformly, which can prevent a large amount of dust and impurities from clogging the filter screen and effectively improve the processing efficiency.

Description of drawings

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

Fig. 2 is a schematic diagram of the internal structure of the utility model;

Figure 3 is a partial enlarged view of A in Figure 2

Fig. 4 is a structural schematic diagram of another perspective of the utility model;

Fig. 5 is the structural representation of the utility model embodiment 2;

Fig. 6 is a partial enlarged view of place B in Fig. 5;

Fig. 7 is a top view of the graded filter aid device in Example 2 of the present utility model;

Fig. 8 is a sectional view of the graded filter aid device in Example 2 of the present utility model;

Fig. 9 is a top view of a filter aid plate in Example 3 of the present utility model;

Fig. 10 is a front view of a filter aid plate in Embodiment 3 of the present utility model.

In the figure: main box 1, dust collecting chamber 1a, air inlet chamber 1b, air outlet chamber 1c, air inlet 1d of the cabinet, universal casters 11, sound-absorbing cotton layer 12, electronic dust collector 13, centrifugal fan 2, volute 2a, impeller 2b, motor 2c, linkage shaft 21, filter screen 3, dust isolation tube 4, edge dust fall channel 41, grading filter aid device 5, rotating disc 51, filter aid plate 52, upper plate 521, lower plate 522.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Embodiment 1: In the embodiment shown in Fig. 1 to Fig. 4, a kind of welding fume filtering machine comprises the main box 1 and the centrifugal fan 2 arranged in the main box, and the main box is arranged sequentially from bottom to top There are dust collecting chamber 1a, air inlet chamber 1b and air outlet chamber 1c. The main box is provided with a box air inlet 1d connected with the air inlet chamber and a box air outlet connected with the exhaust chamber. The centrifugal fan includes a volute 2a , the impeller 2b in the volute and the motor 2c used to drive the impeller to rotate, the volute is provided with an air inlet with the opening facing down and an air outlet with the opening facing the air outlet of the box, and a metal filter screen is provided in the air intake chamber 3. The metal filter is located below the air inlet, and the position of the metal filter is higher than that of the air inlet of the cabinet. At least three universal casters 11 are provided at the bottom of the main cabinet.

The bottom surface of the main box is rectangular, and the number of universal casters arranged on the bottom of the main box is four, and the four universal casters are located at four corners of the bottom surface of the main box respectively.

A sound-absorbing cotton layer 12 is provided on the side wall of the air outlet cavity.

An electronic dust collector 13 is arranged in the air intake cavity, and the electronic dust collector is located between the metal filter screen and the air inlet.

The dust collection chamber is arranged in a dust collection drawer with an upper end opening, the dust collection drawer is slidingly connected with the main chassis, the sliding direction of the dust collection drawer is horizontal, and a push-pull handle is provided on the dust collection drawer.

When it is necessary to process welding fume, the utility model can be moved to the vicinity of the working place through universal casters, and the centrifugal fan is started. The welding fume flow enters the air intake cavity from the air inlet of the box and starts to rise. After passing through the filter screen, Coarse dust impurities are filtered out first, and the welding fume flow continues to rise, and is further dedusted after passing through the electronic dust collector, and the clean gas after dedusting passes through the centrifugal fan and is discharged from the air outlet of the box. In the main box, the filtered dust and impurities will eventually fall into the air intake cavity, among which, the heavier dust and impurities will be filtered and dropped at the beginning, and the lighter impurities will fall after gathering and becoming heavier, or When the suction capacity of the centrifugal fan becomes weak (there is a lot of dust, which temporarily causes partial blockage of the filter screen, etc., making the ventilation capacity weak, or the centrifugal fan is turned off), it starts to fall. After a lot of dust is collected in the dust collection chamber, the dust collection drawer can be pulled out for cleaning.

Embodiment 2: The basic structure and implementation of this embodiment are the same as in Embodiment 1. The difference is that, as shown in Figures 5 to 8, the air inlet chamber is provided with a grading aid below the filter screen. Filtering device 5, the graded filter aiding device includes a rotating disc 51 driven by a motor and a plurality of filter aiding plates 52 arranged on the rotating disc, the rotating disc is arranged horizontally, and each filter aiding plate is distributed sequentially along the circumference of the rotating disc, and the filter aiding plates Arranged horizontally, the vertical projection of the grading filter-aid device is a circular surface. Among the two adjacent filter-aid plates in the circumferential direction of the rotating disk: the bottom surface of one filter-aid plate is higher than the top surface of the other filter-aid plate.

The motor is coaxially connected to the rotating disk through a vertically arranged linkage shaft 21, the output shaft of the motor is connected to one end of the linkage shaft, the other end of the linkage shaft is connected to the top surface of the rotating disk, the linkage shaft passes through the filter screen and the gap between the linkage shaft and the filter screen Turn to fit. When installing the electronic dust collector, the linkage shaft can be avoided, or the linkage shaft can pass through the electronic dust collector.

The air intake cavity is provided with a dust isolation tube 4, the upper and lower ends of the dust isolation tube are all open, and the dust isolation tube and the rotating disk are coaxially arranged, and an edge dust falling channel 41 is formed between the dust isolation tube and the inner side wall of the air intake cavity. The upper end of the dust isolation box is lower than the classification filter aid device, and the lower end opening of the dust isolation box communicates with the air outlet of the box body through the air inlet pipe.

When working, the rotating disk rotates to drive the filter aid plate to rotate together. When the welding fume rises in the air intake chamber, it no longer flows directly upwards, but first rises to contact the bottom surface of the filter aid plate, then moves laterally, and then After passing through the gap between the filter plates, it rises again and reaches the filter screen. In this way, the gas in the welding fume flow can still flow smoothly, but in the process of rising, part of the dust impurities in the welding fume flow will be easily centrifugally thrown off by the filter-aid plate because it will contact the bottom surface of the filter-aid plate. out, so as to quickly reach the edge of the air intake cavity, and fall into the edge dust drop channel, and the dust impurities will directly fall into the air intake cavity after passing through the edge dust drop channel. Moreover, after throwing the dust to the edge, it is equivalent to quickly reducing the dust impurity content in the main updraft, thereby reducing the burden of driving the dust and impurities to rise, which can effectively improve work efficiency. After the welding fume flow rises to touch the filter screen, the dust and impurities will gather at the filter screen, and when they gather to a larger and heavier size, they will fall down. In the prior art, this part of the dust and impurities will pass through the entire air intake cavity Then it falls into the air intake cavity. In this way, due to the long falling distance, this part of dust and impurities is easy to disperse again, and is again driven upward by the subsequent updraft, and returns to the filter screen, which leads to separation and treatment. A drop in efficiency. However, in this embodiment, this part of the falling dust and impurities will fall on the top surface of the filter aid plate after a short distance. In the dust-falling channel at the edge, the dust impurities will directly fall into the air intake chamber after passing through the dust-falling channel at the edge, thus greatly improving the separation efficiency and treatment effect.

Embodiment 3: The basic structure and implementation mode of this embodiment are the same as those of Embodiment 2, the difference is that, as shown in Figures 9 to 10, two vertically arranged The upper plate 521, the length direction of the upper plate is perpendicular to the axis of the rotating disk, is arranged between two upper plates on the top surface of a filter aid plate to form a quick separation groove for falling dust. The bottom surface of the filter aid plate is provided with two vertically arranged lower plates 522. The length direction of the lower plate is perpendicular to the axis of the rotating disk, and is arranged between the two lower plates on the bottom surface of a filter aid plate to form a quick separation of dust. groove.

When the rising dust impurity touches the bottom surface of the filter-aid plate, and when the falling dust impurity touches the top surface of the filter-aid plate, they will be thrown off-line and move toward the edge of the air intake chamber. During the moving process, some of the dust and impurities will directly hit the edge of the air intake chamber, but a large part will pass through the gap between the filter plates. At this time, the dust and impurities will easily change direction and be driven up by the air flow, resulting in a change in separation efficiency. Low. In this embodiment, by setting the falling dust fast separation groove and the dust rising fast separation groove, it can effectively play the role of guiding and improving the effect of dust rejection, and can prevent the dust and impurities thrown to the edge of the air intake cavity from changing their direction halfway, ensuring that they are Most of it can directly reach the edge of the intake cavity and fall into the edge dust channel. Therefore, the separation effect is effectively guaranteed and the processing efficiency is improved.

Claims (8)

1. A welding fume filtering machine is characterized in that it comprises a main frame and a centrifugal fan arranged in the main frame, and the main frame is successively provided with a dust collection chamber, an air inlet chamber and an air outlet chamber from bottom to top, and the main frame The box is provided with a box air inlet connected to the air intake chamber and a box air outlet connected to the exhaust chamber. The centrifugal fan includes a volute, an impeller in the volute and a motor for driving the impeller to rotate. The shell is provided with an air inlet with the opening facing downwards and an air outlet with the opening facing the air outlet of the box body. There is a metal filter in the air intake chamber. The metal filter is located under the air inlet, and the metal filter is located higher than the box. At the location of the air inlet, at least three universal casters are provided at the bottom of the main chassis. 2. A welding fume filter according to claim 1, characterized in that, the bottom surface of the main box is rectangular, and the number of universal casters arranged on the bottom of the main box is four, and the four universal casters are respectively positioned at At the four corners of the bottom of the main chassis. 3. A welding fume filter according to claim 1, characterized in that, a sound-absorbing cotton layer is provided on the side wall of the air outlet chamber. 4 . The welding fume filter according to claim 1 , wherein an electronic dust collector is provided in the air inlet cavity, and the electronic dust collector is located between the metal filter screen and the air inlet. 5. A welding fume filter according to claim 1, characterized in that, the dust collection chamber is arranged in a dust collection drawer with an upper end opening, the dust collection drawer is slidably connected to the main chassis, and the dust collection The sliding direction of the drawer is horizontal, and there is a push-pull handle on the dust collection drawer. 6. A welding fume filter according to claim 1, characterized in that, the air intake chamber is provided with a grading filter aid device under the filter screen, and the grading filter aid device includes a rotary motor driven by a motor. The rotating disc and a plurality of filter aid plates arranged on the rotating disc, the rotating disc is arranged horizontally, each filter aid plate is distributed sequentially along the circumference of the rotating disc, the filter aid plates are arranged horizontally, and the vertical projection of the grading filter aid device is a circular surface, Among the two adjacent filter-aid plates in the circumferential direction of the rotating disk: the bottom surface of one filter-aid plate is higher than the top surface of the other filter-aid plate. 7. A welding fume filter according to claim 6, wherein the motor is coaxially connected to the rotating disk through a vertically arranged linkage shaft, the output shaft of the motor is connected to one end of the linkage shaft, and the other end of the linkage shaft is One end is connected to the top surface of the rotating disk, the linkage shaft passes through the filter screen and the linkage shaft and the filter screen are rotated and matched. 8. A welding fume filter according to claim 6, characterized in that, the air inlet cavity is provided with a dust-proof tube, the upper and lower ends of the dust-proof tube are open, and the dust-proof tube and the rotating disc are the same. The shaft is arranged, and the edge dust-falling channel is formed between the dust-proof box and the inner wall of the air intake chamber. The upper end of the dust-proof box is lower than the classification filter aid device, and the opening at the lower end of the dust-proof box is connected with the air outlet of the box body through the air inlet pipe.