CN208526187U - Weldering smoke pipeline outlet air treatment facilities for workshop environmental protection - Google Patents

Abstract

The utility model provides the weldering smoke pipeline outlet air treatment facilities for being used for workshop environmental protection, including pedestal, blower and positioning body, the base top in-plane are vertically arranged with blower by bolt；The motor control box of rectangular-shape is enclosed with outside the blower of the base top；Be fixedly installed transformer on the front plan of the motor control box, and transformer with the blower inside motor control box by being electrically connected；The motor control box upper end consolidates time set and is connected with purification cabinet, and purifies and be sealed with topmast fagging at the top of cabinet.The setting of the fireguard of the utility model and upper convex body, by the upper convex body at the top of fireguard with universal air suction arm position corresponding section being middle conve shaped, and the surrounding side of fireguard is round and smooth cofferdam, so that fireguard is while playing the role of original back-fire relief, rapid dispersion dust gas can be given again, it avoids dust gas from converging on fireguard, separates dust and gas better effect compared to traditional tabular fireguard.

Description

Weldering smoke pipeline outlet air treatment facilities for workshop environmental protection

Technical field

The utility model belongs to environmentally friendly technical field of air purification, more specifically, in particular to for workshop environmental protection Weld smoke pipeline outlet air treatment facilities.

Background technique

A large amount of flue dust can be generated during industrial production weld job, wherein contain a large amount of metal oxide dust, Working environment is not only polluted, and endangers the physical and mental health of worker, and the cleaner in existing workshop is mostly such as patent application A kind of weldering fume purifying apparatus of strainer easy to disassemble in book CN201120095940.5, including outline border, the bottom of the outline border inner wall Portion is fixedly connected with buckling and locking device, and the top of buckling and locking device is fixedly connected sequentially from left to right the first filter screen, second Filter screen and third filter screen are fixedly connected to top at the top of first filter screen, the second filter screen and third filter screen Frame, the utility model relates to weld fume purifying apparatus technical field.The weldering fume purifying apparatus of the strainer easy to disassemble, has reached and has been convenient for The purpose of disassembly and installation facilitates the timely cleaning to filter screen, simplifies the operation of disassembly and installation, reduces the wave of time Take, by the setting of three layer filtration net, multiple harmful substances in smog can be adsorbed, so that obtaining smog after filtering It is harmless, it not can cause environmental pollution, and by the setting of acoustical cotton, effectively reduce noise pollution, improve The practicability of device.

Based on above-mentioned, the inventors discovered that, the back-fire relief baffle in existing weldering smoke pipeline cleaner is can not in equipment The structure lacked, but such as traditional fireguard structure is mostly slab construction, it, can on fireguard during prolonged use Carbon distribution can be will appear, to reduce back-fire relief effect, and such as the filter device in above-mentioned patent, after once filtering, May still there be dust residual in air duct, prolonged use is easy to save bit by bit in air duct, clean-up effect is caused to reduce, and maintenance is tired Difficult problem.

Then, in view of this, being studied improvement for existing structure and missing, the weldering cigarette for workshop environmental protection is provided Pipe outlet air purification structure, to achieve the purpose that with more more practical value.

Utility model content

In order to solve the above-mentioned technical problem, the utility model is provided purifies for the weldering smoke pipeline outlet air of workshop environmental protection Structure, to solve existing weldering smoke pipeline cleaner, during prolonged use, it is possible that product on fireguard Carbon, may in air duct after once filtering to reduce back-fire relief effect, and such as the filter device in above-mentioned patent Still there is dust residual, prolonged use is easy to save bit by bit in air duct, clean-up effect is caused to reduce, problem difficult in maintenance Problem.

Purpose and effect of the utility model for the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection, by following tool Body technique means are reached:

For the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection, including pedestal, motor control box, transformer, ten thousand To air suction arm, dust hood, topmast fagging purifies cabinet, column of picking up the ears, preceding sealing plate, ash disk, non-return body, hangers, hanging column, out Aerofoil is filtered in air port, automatically controlled cabinet, the net cinder box of air flue, bottom sealing plate, fireguard, upper convex body, connecting column, pulse cleaning device, air duct, Cartridge filter, net air port, net gray columns, exhausting paddle, blower and positioning body, the base top in-plane are vertically arranged by bolt There is blower；The motor control box of rectangular-shape is enclosed with outside the blower of the base top；The front end of the motor control box Be fixedly installed transformer in plane, and transformer with the blower inside motor control box by being electrically connected；The motor Control cabinet upper end consolidates time set and is connected with purification cabinet, and purifies and be sealed with topmast fagging at the top of cabinet；The top support Plate center is fixedly connected with universal air suction arm, and the end of universal air suction arm is fixedly installed dust hood；Before the purification cabinet Transverse plane lower end offers circular air outlet, and the front plan upper end quadrangle for purifying cabinet is bolted before capping has Sealing plate, and the bolt of fixed preceding sealing plate is then screwed on purification cabinet left end and right end sidewalls and is integrated with purification cabinet Structure is picked up the ears on column；It is fixed on the side wall of the motor control box left end to hang with automatically controlled cabinet, and automatically controlled cabinet and and transformer By being electrically connected；The through-hole lower end of the topmast fagging and universal air suction arm connection is by four in distributed rectangular Connecting column is fixedly connected with fireguard；Pulse cleaning device is fixedly installed in the groove of the fireguard lower end；The pulse cleaning Cartridge filter is provided in purification cabinet below device, and cartridge filter left end is slided with two parallel sliding rails are passed through on the side wall of right end It is dynamic to be embedded in purification cabinet；Ash disk is slidably connected on purification cabinet below the cartridge filter, and ash disk is put just It sets on fixed baffle in purification cabinet, and ash disk outer end sidewall upper is hung on purification cabinet front plan by hangers Hanging column on, and hanging column and hangers are screwed together by bolt；It is fixedly welded on the rear wall of the purification cabinet rectangular The air duct of body shape, and left end in purification cabinet and right end are full of by the left end in air duct and right end just；It is net below the air duct Change and from two Slideslips be inlaid with the net cinder box of air flue on cabinet inner wall, and between the net cinder box of air flue and air duct there are with air duct width phase Consistent gap, and the net cinder box of the air flue partition flush with motor control box top just；The motor control box top Purification cabinet be provided with the exhausting paddle being connected to a fixed with the rotation axis of blower, and the front end of exhausting paddle is then exactly air outlet Place at；The pulse cleaning device and the automatically controlled cabinet of lower section are also by being electrically connected.

It further, is the convex of middle conve shaped with universal air suction arm position corresponding section at the top of the fireguard Body, and the surrounding side of fireguard is round and smooth cofferdam.

Further, the cartridge filter is globoidal structure of the upper layer and lower layer to lower recess, and offers and be used on cartridge filter Filter the through-hole of dust.

Further, the net wind for offering crescent shape is fixed in the air duct front end side wall with corresponding section in the middle part of cartridge filter Mouthful, and interval is evenly arranged with columned net gray columns in net air port.

Further, the interval width filter aerofoil consistent with air duct width is vertically provided in the air duct.

Further, the net cinder box of the air flue is S shape structure, and the upper end of the net cinder box of air flue is located at the inside of purification cabinet, And the lower end of the net cinder box of air flue is located at the outside of purification cabinet, and the lower end of the net cinder box of air flue uses fixation by the net cinder box of air flue Bolt seal.

Further, ash disk upper end is recessed globoidal structure, so that the left end of ash disk and right end sidewalls are high The non-return body of reversed acanthoid is provided in middle part, and on the inner end side wall of ash disk.

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

The setting of fireguard and upper convex body is centre by the top of fireguard and universal air suction arm position corresponding section Convex upper convex body, and the surrounding side of fireguard is round and smooth cofferdam, so that fireguard is playing original back-fire relief work With while, and rapid dispersion dust gas can be given, avoid dust gas from converging on fireguard, be kept off compared to traditional tabular Fiery plate separates dust and gas better effect.

The setting of net gray columns in cartridge filter and net air port is globoidal structure of the upper layer and lower layer to lower recess by cartridge filter, And through-hole for filtering dust is offered on cartridge filter, after dust gas is attacked from top, dust can be in the special of cartridge filter It saves bit by bit under structure and slides downwards, in addition, the probability of dust convolution can be reduced again, improve filter effect, and air duct The net air port for offering crescent shape is fixed in front end side wall with corresponding section in the middle part of cartridge filter, and is spaced and is uniformly arranged in net air port There is columned net gray columns, it, can be in net ash if still containing dust in air when the air by purification passes through net air port A part is adhered under the action of column, avoids entering excessive dust in air duct, and form corresponding knot with the ash disk of lower section Structure can quickly carry out dust stratification, and compared to traditional columned cartridge filter, which can reach 90% purification Rate.

The setting of the net cinder box of air flue, is S shape structure by the net cinder box of air flue, and the upper end of the net cinder box of air flue is located at purification cabinet Inside, and the lower end of the net cinder box of air flue be located at purification cabinet outside, and the lower end of the net cinder box of air flue pass through the net cinder box of air flue It is sealed using fixing bolt, it, can be sliding quickly by means of S type structure when the dust in air duct drops into the net cinder box of air flue The net cinder box bottom of air flue is dropped down onto, so as to avoid dust from turning again in air-flow, and can generate in easy cleaning air duct Dust, compared to common weldering smoke pipeline outlet air treatment facilities, the net cinder box of air flue can play the purpose of double purification, energy Enough improve air degree of purity.

Detailed description of the invention

Fig. 1 is the right front axis view structural schematic diagram of the utility model.

Fig. 2 is the left back square shaft view structural schematic diagram of the utility model.

Fig. 3 is the overlooking structure diagram of the utility model.

Fig. 4 is A-A partial cross-sectional structural diagram in Fig. 3 of the utility model.

Fig. 5 is the ash disk extraction state axis view structural schematic diagram of the utility model.

Fig. 6 is the preceding sealing plate dismantling state axis view structural schematic diagram of the utility model.

Fig. 7 is the unmatched sealing plate part-structure axis view structural schematic diagram of the utility model.

Fig. 8 is the air flue grey box part axis view structural schematic diagram only of the utility model.

Fig. 9 is the air passage portion axis view structural schematic diagram of the utility model.

Figure 10 is the fireguard and pulse cleaning device part axis view structural schematic diagram of the utility model.

In figure, the corresponding relationship of component names and accompanying drawing number are as follows:

1- pedestal, 2- motor control box, 3- transformer, the universal air suction arm of 4-, 5- dust hood, 6- topmast fagging, 7- purification Cabinet, 701- pick up the ears column, sealing plate before 8-, 9- ash disk, 901- non-return body, 902- hangers, 903- hanging column, 10- air outlet, The automatically controlled cabinet of 11-, the net cinder box of 12- air flue, 1201- bottom sealing plate, 13- fireguard, the upper convex body of 1301-, 1302- connecting column, 14- arteries and veins Washer, the air duct 15- are rushed, 1501- filters aerofoil, 16- cartridge filter, the net air port 17-, the net gray columns of 1701-, 18- exhausting paddle, 19- wind Machine, 20- positioning body.

Specific embodiment

The embodiments of the present invention is described in further detail with reference to the accompanying drawings and examples.Following embodiment For illustrating the utility model, but cannot be used to limit the scope of the utility model.

In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term The orientation of the instructions such as "upper", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and cannot It is interpreted as indication or suggestion relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.

Embodiment:

As shown in attached drawing 1 to attached drawing 10:

The utility model provides the weldering smoke pipeline outlet air treatment facilities for being used for workshop environmental protection, including pedestal 1, motor control Case 2 processed, transformer 3, universal air suction arm 4, dust hood 5, topmast fagging 6 purify cabinet 7, column 701 of picking up the ears, and preceding sealing plate 8 connects Ash-pan 9, non-return body 901, hangers 902, hanging column 903, air outlet 10, automatically controlled cabinet 11, the net cinder box 12 of air flue, bottom sealing plate 1201, Aerofoil 1501, cartridge filter 16, net air port are filtered in fireguard 13, upper convex body 1301, connecting column 1302, pulse cleaning device 14, air duct 15 17, net gray columns 1701, exhausting paddle 18, blower 19 and positioning body 20,1 top planes of the pedestal middle part are vertically arranged by bolt There is blower 19；The motor control box 2 of rectangular-shape is enclosed with outside the blower 19 at 1 top of pedestal；The motor control box 2 Front plan on be fixedly installed transformer 3, and transformer 3 with the blower 19 inside motor control box 2 by being electrical connected It connects；2 upper end of motor control box consolidates time set and is connected with purification cabinet 7, and the top for purifying cabinet 7 is sealed with top support Plate 6；6 center of topmast fagging is fixedly connected with universal air suction arm 4, and the end of universal air suction arm 4 is fixedly installed dust suction Cover 5；The 7 front plan lower end of purification cabinet offers circular air outlet 10, and purifies the front plan upper end four of cabinet 7 Angle, which is bolted capping, a preceding sealing plate 8, and it is fixed before sealing plate 8 bolt be then screwed onto purification 7 left end of cabinet with It picks up the ears on column 701 on right end sidewalls with what purification cabinet 7 was structure as a whole；It is fixed on the 2 left end side wall of motor control box to hang There is automatically controlled cabinet 11, and automatically controlled cabinet 11 is again with transformer 3 by being electrically connected；The topmast fagging 6 and universal air suction arm 4 The through-hole lower end of connection is fixedly connected with fireguard 13 in the connecting column 1302 of distributed rectangular by four；The fireguard Pulse cleaning device 14 is fixedly installed in 13 lower end grooves；It was provided in the purification cabinet 7 of 14 lower section of pulse cleaning device Filter cylinder 16, and 16 left end of cartridge filter is embedded in purification cabinet 7 on the side wall of right end by two parallel sliding rails slidings；Institute It states and slidably connects ash disk 9 on the purification cabinet 7 of 16 lower section of cartridge filter, and ash disk 9 is placed in purification cabinet 7 admittedly just On fixed baffle, and 9 outer end sidewall upper of ash disk hangs over the hanging column 903 on purification 7 front plan of cabinet by hangers 902 On, and be screwed together hanging column 903 and hangers 902 by bolt；It is fixedly welded on the rear wall of the purification cabinet 7 rectangular The air duct 15 of body shape, and left end in purification cabinet 7 and right end are full of by the left end in air duct 15 and right end just；Under the air duct 15 It is inlaid with the net cinder box 12 of air flue from two Slideslips on 7 inner wall of purification cabinet of side, and is stayed between the net cinder box 12 of air flue and air duct 15 There is a gap consistent with 15 width of air duct, and the net cinder box 12 of the air flue partition flush with 2 top of motor control box just； The purification cabinet 7 at 2 top of motor control box is provided with the exhausting paddle 18 being connected to a fixed with the rotation axis of blower 19, and takes out The front end of wind paddle 18 is then exactly at the place of air outlet 10；The automatically controlled cabinet 11 of the pulse cleaning device 14 and lower section also by It is electrically connected.

Wherein, 13 top of fireguard and universal 4 position corresponding section of air suction arm are the upper convex body of middle conve shaped 1301, and the surrounding side of fireguard 13 is round and smooth cofferdam, as shown in Figure 10 so that fireguard 13 play it is original While back-fire relief acts on, and rapid dispersion dust gas can be given, avoid dust gas from converging on fireguard 13, compared to traditional Tabular fireguard 13 separates dust and gas better effect.

Wherein, the cartridge filter 16 is globoidal structure of the upper layer and lower layer to lower recess, and offers and be used on cartridge filter 16 The through-hole for filtering dust, after dust gas is attacked from top, dust can be saved bit by bit and downwards under the special construction of cartridge filter 16 Side slides, in addition, can reduce the probability of dust convolution again, improves filter effect.

Wherein, the net wind for offering crescent shape is fixed in 15 front end side wall of air duct with 16 middle part corresponding section of cartridge filter Mouth 17, and interval is evenly arranged with columned net gray columns 1701 in net air port 17, when the air by purification is by net air port When 17, if still containing dust in air, a part can be adhered under the action of net gray columns 1701, avoids entering in air duct 15 Excessive dust.

Wherein, the interval width filter aerofoil 1501 consistent with 15 width of air duct is vertically provided in the air duct 15, when When containing dust in air duct 15, dust can be when air duct 15 be passed through, and under the action of filtering aerofoil 1501, dust impinges upon filter aerofoil Gathered on 1501, is finally dropped under the action of air-flow among the net cinder box 12 of air flue of lower section, play double purification Purpose.

Wherein, the net cinder box 12 of the air flue is S shape structure, and the upper end of the net cinder box 12 of air flue is located at the inside of purification cabinet 7, And the lower end of the net cinder box 12 of air flue is located at the outside of purification cabinet 7, and the lower end of the net cinder box 12 of air flue passes through the net cinder box 12 of air flue It is sealed using fixing bolt, it, can be quickly by means of S type knot when the dust in air duct 15 drops into the net cinder box 12 of air flue Structure, landing to net 12 bottom of cinder box of air flue, so as to avoid dust from turning again in air-flow, and being capable of easy cleaning air duct 15 The dust of middle generation.

Wherein, 9 upper end of ash disk is recessed globoidal structure, so that the left end of ash disk 9 and right end sidewalls are higher than Middle part, and the non-return body 901 of reversed acanthoid is provided on the inner end side wall of ash disk 9, so that holding dust in ash disk 9 When, the dust at net 17 position of air port is difficult to form gyration airflow in non-return body 901, ensure that dust can be in ash disk 9 stable gather.

The specifically used mode and effect of the present embodiment:

In the utility model, motor control box 2 is connected with external power supply, control blower 19 and pulse cleaning device 14 into Row work, when blower 19 drives exhausting paddle 18 to be rotated, so that negative pressure state is formed in purification cabinet 7, so that dust suction 5 generation suction of cover is dusted, and when dust air in universal air suction arm 4 from after entering in purification cabinet 7, dust gas rushes first The progress one-shot accumulation on fireguard 13 is hit, back-fire relief is on the one hand able to carry out, on the other hand can play separation dust again Effect, next, dust gas will continue under the action of internal suction by cartridge filter 16 carry out conventional purification, by separation Dust take advantage of a situation and fall into the ash disk 9 of lower section, for the first time after the air of purification enters in air duct 15 from net air port 17, When containing dust in air duct 15, dust can be when air duct 15 be passed through, and under the action of filtering aerofoil 1501, dust impinges upon filter wind Gathered on plate 1501, is finally dropped under the action of air-flow among the net cinder box 12 of air flue of lower section, play double purification Purpose, and the net cinder box 12 of the air flue of lower section, the net cinder box 12 of air flue is S shape structure, and the upper end of the net cinder box 12 of air flue is located at purification The inside of cabinet 7, and the lower end of the net cinder box 12 of air flue is located at the outside of purification cabinet 7, and the lower end of the net cinder box 12 of air flue passes through The net cinder box 12 of air flue is sealed using fixing bolt, can be quick when the dust in air duct 15 drops into the net cinder box 12 of air flue By means of S type structure, slide to net 12 bottom of cinder box of air flue, so as to avoid dust from turning again in air-flow, and can be square Just the dust generated in air duct 15 is cleared up, after generating a large amount of dust stratifications in cartridge filter 16, arteries and veins can be controlled by motor control box 2 Washer 14 is rushed to clean cartridge filter 16.

The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustively or to incite somebody to action The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art See.Embodiment was chosen and described in order to better illustrate the principle and practical application of the utility model, and makes this field Those of ordinary skill it will be appreciated that the utility model to designing various embodiments suitable for specific applications with various modifications.

Claims (7)

1. being used for the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection, it is characterised in that: this is used for the weldering cigarette of workshop environmental protection Pipe outlet air purification structure includes pedestal, motor control box, transformer, universal air suction arm, dust hood, topmast fagging, only Change cabinet, column of picking up the ears, preceding sealing plate, ash disk, non-return body, hangers, hanging column, air outlet, automatically controlled cabinet, the net cinder box of air flue, bottom Sealing plate, fireguard, upper convex body, connecting column, pulse cleaning device, air duct, filter aerofoil, cartridge filter, net air port, net gray columns, exhausting paddle, Blower and positioning body, the base top in-plane are vertically arranged with blower by bolt；Outside the blower of the base top Portion is enclosed with the motor control box of rectangular-shape；It is fixedly installed transformer on the front plan of the motor control box, and becomes Depressor is with the blower inside motor control box by being electrically connected；The motor control box upper end is consolidated time set and is connected with only Change cabinet, and purifies and be sealed with topmast fagging at the top of cabinet；Topmast fagging center is fixedly connected with universal air suction arm, and The end of universal air suction arm is fixedly installed dust hood；Purification cabinet front plan lower end offers circular air outlet, And the front plan upper end quadrangle for purifying cabinet is bolted capping a preceding sealing plate, and it is fixed before sealing plate bolt It is then screwed on purification cabinet left end and right end sidewalls and picks up the ears on column with what purification cabinet was structure as a whole；The motor control box It is fixed on the side wall of left end to hang with automatically controlled cabinet, and automatically controlled cabinet is again with transformer by being electrically connected；The topmast fagging with The through-hole lower end of universal air suction arm connection is fixedly connected with fireguard in the connecting column of distributed rectangular by four；The gear Pulse cleaning device is fixedly installed in the groove of fiery plate lower end；Filtering is provided in purification cabinet below the pulse cleaning device Cylinder, and cartridge filter left end is embedded in purification cabinet on the side wall of right end by two parallel sliding rails slidings；The filtering Ash disk is slidably connected on the purification cabinet of cylinder lower section, and ash disk is placed on just on baffle fixed in purification cabinet, And ash disk outer end sidewall upper is hung over by hangers on the hanging column on purification cabinet front plan, and by bolt by hanging column and Hangers is screwed together；It is fixedly welded with the air duct of rectangular-shape on the rear wall of the purification cabinet, and the left end in air duct and the right side Left end in purification cabinet and right end are full of by end just；It is inlaid on clearing machine chamber interior wall below the air duct from two Slideslips The net cinder box of air flue, and there are the gaps consistent with air duct width between the net cinder box of air flue and air duct, and the net cinder box of air flue is proper Good and motor control box top partition flush；The purification cabinet of the motor control box top is provided with the rotation with blower The exhausting paddle that axis is connected to a fixed, and the front end of exhausting paddle is then exactly at the place of air outlet；The pulse cleaning device is under The automatically controlled cabinet of side is also by being electrically connected.

2. being used for the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection as described in claim 1, it is characterised in that: the gear At the top of fiery plate and universal air suction arm position corresponding section is the upper convex body of middle conve shaped, and the surrounding side of fireguard is Round and smooth cofferdam.

3. being used for the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection as described in claim 1, it is characterised in that: the mistake Filter cylinder is globoidal structure of the upper layer and lower layer to lower recess, and the through-hole for filtering dust is offered on cartridge filter.

4. being used for the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection as described in claim 1, it is characterised in that: the wind The net air port for offering crescent shape is fixed in road front end side wall with corresponding section in the middle part of cartridge filter, and is spaced in net air port and uniformly sets It is equipped with columned net gray columns.

5. being used for the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection as described in claim 1, it is characterised in that: the wind The interval width filter aerofoil consistent with air duct width is vertically provided in road.

6. being used for the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection as described in claim 1, it is characterised in that: the gas The net cinder box in road is S shape structure, and the upper end of the net cinder box of air flue is located at the inside of purification cabinet, and the lower end of the net cinder box of air flue is located at only Change the outside of cabinet, and the lower end of the net cinder box of air flue is sealed by the net cinder box of air flue using fixing bolt.

7. being used for the weldering smoke pipeline outlet air treatment facilities of workshop environmental protection as described in claim 1, it is characterised in that: described to connect Ash-pan upper end is recessed globoidal structure, so that the left end of ash disk and right end sidewalls are higher than middle part, and the interior end side of ash disk The non-return body of reversed acanthoid is provided on wall.