The dust-extraction unit of fabric processing and sorting equipment
Technical field
The invention belongs to field of mechanical technique, are related to a kind of fabric processing and sorting equipment, especially a kind of fabric side
Expect the dust-extraction unit of processing and sorting equipment.
Background technique
Arranging process is last procedure in fabric process, and used device is such as in existing arranging process
It is a kind of for carrying out the device [application number: 03811989.7 of textile finishing before ready-made clothes sews disclosed in chinese patent library;Authorization
Notification number: 100458336 A of CN], so that the textile fabric being made of coarse drill cloth is tiltedly upheld and is dried, institute in the apparatus
To state device include at least one air drier, with the circulation air for recycling the heating for drying fabric inside it and
With the guide roller for fabric installed inside it, the air drier guide roll parallel with two rows;It is described
Device further includes the latter linked mechanism for being used to apply fabric defined vertical stretching, at least one guiding before air drier
All guide rollers in at least one set of roller row, relative to the water determined by remaining guide roller at least one guide roll
Average face is installed with toppling in the same direction to the direction of another guide roll.
Fabric can adhere to some dusts during multiple working procedure tosses about thereon.But use is not arranged for above-mentioned device
In the device for removing dust, whole finishing effect is influenced.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, proposes a kind of fabric processing and sorting and set
The technical issues of standby dust-extraction unit, solution, improves structural compactness while strengthening finishing effect.
Object of the invention can be realized by the following technical scheme: the dust-extraction unit of fabric processing and sorting equipment,
Fabric processing and sorting equipment includes finishing box and the fabric guide roll in finishing box and for fabric guiding, and fabric guide roll has two
A and position face, is additionally provided with two exhaust pipes for hot gas to be discharged in finishing box, two rows of position of trachea faces and is respectively at
The upper side and lower side of fabric, with fabric face, the outlet side of exhaust pipe is in cuboid for the port of the outlet side of two exhaust pipes
And extend along a length thereof direction and fabric conveying direction is perpendicular, which is characterized in that this dust-extraction unit includes being respectively fitted over two to go out
Two pump bowls outside gas end, and pump bowl is mutually fixed with outlet side, the pump bowl are in cuboid, and pump bowl and outlet
Bleed-off passage annular in shape is formed between end, outlet end part stretches out pump bowl, is further fixed on exhaust fan in the finishing box
With gather qi together case, the entrance of exhaust fan and two bleed-off passage threes are connected to the inner cavity of gather qi together case, two long sides of outlet side
Outer wall is intilted air guide inclined-plane two, and the inner wall of two long sides of pump bowl is the air guide inclined-plane three being inclined outwardly.
It is covered outside exhaust pipe, the component of pumping dustproof function can have been reduced in this way and is risen for hot gas by the way that pump bowl is arranged
The distance between component of effect, to improve the structural compactness of whole equipment.
Under the cooperation on air guide inclined-plane two and air guide inclined-plane three, preferable guiding is played to the dust and impurities on fabric and is made
With, make the impurity such as the dust on fabric be easier to enter in pump bowl, improves the effect and efficiency of dedusting simultaneously in this way, from
And improve the finishing effect of collator.
In the dust-extraction unit of above-mentioned fabric processing and sorting equipment, gather qi together case includes cabinet and covers on cabinet
Case lid, and cabinet is mutually fixed with the inner wall of finishing box, has the circumferential support seat coaxial with the cabinet, support on the inner wall of cabinet
The second Air Filter for reclining on the end face of one end of nearly case lid and covering the inner cavity of the support base is seated against, is had on the inner wall of case lid
There are the positioning region annularly protruded, positioning region and support base face, and the second Air Filter is clamped between support base and positioning region;
The side wall of pump bowl described in two extends outward to form straight tube-like air inlet portion, is cased with and can connect in axial sliding along it outside air inlet portion
Adapter tube, and being equipped between air inlet portion and connecting tube can be by detachable locking mechanism that connecting tube locks;Connecting tube is far from pumping
One end of cylinder is fixed with case lid and the end is connected to the inner cavity of cabinet, and the side wall of the cabinet is equipped with aspirating hole, and is evacuated
Hole and connecting tube are respectively at the two sides of the second Air Filter, and the entrance of the exhaust fan is connected to above-mentioned aspirating hole.
Exhaust fan works, and the impurity such as dust on fabric are drawn into pump bowl, then passes through air inlet portion and connecting tube
Deliver into cabinet, and solid gas separation is realized under the action of the second Air Filter, wherein the impurity such as dust are attached to the
On two Air Filters, gas exports discharge through the mesh on the second Air Filter and by exhaust fan.
It needs to clean the second Air Filter after long-time service, operating process is as follows: first unloading detachable locking mechanism,
Then connecting tube is moved along sliding axially for air inlet portion to pump bowl direction, until case lid is detached from cabinet, at this time the second Air Filter
It is unrestricted to be drawn off being cleaned or being replaced.
It is to be positioned under the clamping of the support base on the positioning region and cabinet on case lid due to the second Air Filter, in this way
Detachable locking mechanism is being unloaded and slip nipple can realize the dismounting of the second Air Filter, so that it is anti-effectively to facilitate second
The cleaning of dirt net.
In the dust-extraction unit of above-mentioned fabric processing and sorting equipment, the lateral wall of the air inlet portion be equipped with
Its coaxial annular seal pocket, seal groove is interior to be equipped with sealing ring two, and the lateral wall of sealing ring two and the inner wall of connecting tube offset.
Under the action of sealing ring two, make to form reliable sealing between air inlet portion and connecting tube, it is ensured that exhaust fan generates
Draft be molded in pump bowl completely, to reinforce the dust removing effects of fabric.
In the dust-extraction unit of above-mentioned fabric processing and sorting equipment, the case lid runs through in the horizontal direction to be opened up
There are two mounting holes, and two connecting tubes are each passed through two mounting holes, and the shape and size of mounting hole are identical as connecting tube, and even
Adapter tube is mutually fixed by way of tight fit with case lid.
That is the connection of connecting tube and case lid does not need that the company of connecting tube and case lid can be simplified in this way by other connectors
It connects, to improve the convenience for assembling this equipment.
In the dust-extraction unit of above-mentioned fabric processing and sorting equipment, the sealing ring two is located at detachable locking
Between mechanism and case lid, detachable locking mechanism include through on connecting tube side wall threaded hole one, be set to air inlet portion outer wall
On threaded hole two and the bolt one that is screwed onto threaded hole one, and the end of bolt one is threaded onto threaded hole two.
Connecting tube can be controlled by being threaded in or out bolt one to be in the lock state or unlock state, there is operation
Convenient advantage, to further increase the convenience of the second Air Filter of cleaning.
Alternatively, in the dust-extraction unit of above-mentioned fabric processing and sorting equipment, described is detachable
Locking mechanism include through on connecting tube side wall threaded hole three and the bolt two that is screwed onto threaded hole three, and bolt two
The outer wall tight abutment of end and air inlet portion.
Compared with prior art, the dust-extraction unit of this fabric processing and sorting equipment has the advantage that
1, it is covered outside exhaust pipe by the way that pump bowl is arranged, component and the heat supply of pumping dustproof function can have been reduced in this way
The distance between the component of gas effect, to improve the structural compactness of whole equipment.
2, under the cooperation on air guide inclined-plane two and air guide inclined-plane three, preferable guiding is played to the dust and impurities on fabric
Effect, makes the impurity such as the dust on fabric be easier to enter in pump bowl, improves the effect and efficiency of dedusting simultaneously in this way,
To improve the finishing effect of collator.
3, be due to the second Air Filter support base on positioning region and cabinet on case lid clamping under positioned, this
Sample is unloading detachable locking mechanism and slip nipple can realize the dismounting of the second Air Filter, to effectively facilitate second
The cleaning of Air Filter.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of this fabric processing and sorting equipment.
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A.
Fig. 3 is the schematic cross-sectional view of this fabric processing and sorting equipment in another direction.
Fig. 4 is the enlarged structure schematic diagram in Fig. 3 at B.
Fig. 5 is the enlarged structure schematic diagram in Fig. 3 at C.
Enlarged structure schematic diagram in Fig. 6 in Fig. 3 at D.
Enlarged structure schematic diagram in Fig. 7 in Fig. 3 at E.
Fig. 8 is the mounting structure schematic diagram of exhaust fan.
In figure, 1, finishing box;1a, enter cloth mouth;1b, exit slot;1c, sliding slot;2, exhaust pipe;2a, inlet end;2b, outlet
End;2b1, air guide inclined-plane one;2b2, air guide inclined-plane two;3, pump bowl;3a, air guide inclined-plane three;3b, air inlet portion;4, box body;4a,
Ante-chamber;4b, back cavity;4c, limit base;4d, air intake;5, air-heater;5a, air inlet end;5b, interconnecting piece;6, the first Air Filter;7,
Gather qi together case;7a, cabinet;7a1, support base;7b, case lid;7b1, positioning region;8, the second Air Filter;9, bracket;10, support plate;
11, spring one;12, spring two;13, extraction fan;14, exhaust fan;14a, exhaust part;15, idler roller;16, fabric guide roll;17, it presses
Ring;18, sealing ring one;19, bleed-off passage;20, connecting tube;21, bolt one;22, sealing ring two;23, guide rod;24, nut;
25, sealing ring three;26, sliding block;27, sealing ring four;28, sealing ring five;29, support ring;30, sealing ring;31, baton round;32,
Return pipe.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one
As shown in Figures 1 to 8, this fabric processing and sorting equipment by finishing box 1, exhaust pipe 2, pump bowl 3, box body 4,
Air-heater 5, the first Air Filter 6, gather qi together case 7, the second Air Filter 8, bracket 9, support plate 10, spring 1, spring 2 12, exhausting
The composition such as fan 13, exhaust fan 14.
Wherein, finishing box 1 is in cuboid, and in actual use, finishing box 1 is horizontally disposed.In finishing box 1
It is respectively equipped on the two side walls distributed along its length into cloth mouth 1a and exit slot 1b, enters cloth mouth 1a and exit slot 1b is equal
In cuboid and the length extending direction of the two it is consistent with the width extending direction of finishing box 1.The outside of finishing box 1 is equipped with
Fabric strainer, fabric strainer there are two and respectively with enter cloth mouth 1a and exit slot 1b face.Fabric strainer packet
Several idler rollers 15 uniformly distributed along the length direction of finishing box 1 are included, adjacent two idler rollers, 15 position is staggered, and wherein one
Tight roller 15 is rotated by motor driving (not shown).As shown in Figure 1, being equipped with fabric guide roll 16 in finishing box 1, there are two fabric guide rolls 16,
Two fabric guide rolls, 16 position face is simultaneously distributed along the length direction of finishing box 1.In actual use, fabric guide roll 16 is to fabric
Conveying play the guiding role.
Exhaust unit is additionally provided in finishing box 1, exhaust unit there are several groups and is evenly distributed with along the length direction of finishing box 1.It is excellent
Exhaust unit is selected there are three groups.Every group of exhaust unit includes two exhaust pipes 2 of position face and this two exhaust pipes 2 are located at
The upper side and lower side of fabric.The both ends of every exhaust pipe 2 are respectively inlet end 2a and outlet side 2b, inlet end 2a and outlet side
2b is in that the length extending direction of cuboid and the two is consistent with the width extending direction of finishing box 1.Each outlet side
The port of 2b with fabric face, to play preferable drying functions to fabric.
The gas supply mechanism that hot gas can be delivered in inlet end 2a is equipped on rear side of finishing box 1, specifically, such as Fig. 1 institute
Showing, every exhaust pipe 2 is L-shaped, i.e., at this point, the inlet end 2a of air inlet pipe is horizontally disposed, the outlet side 2b of air inlet pipe
It is arranged along the vertical direction.Gas supply mechanism is set to the rear side of finishing box 1, which includes 4 He of box body outside finishing box 1
The air-heater 5 being mounted on box body 4, wherein box body 4 is in cuboid and its box mouth and 1 face of finishing box.Box body 4 and arrangement
1 phase of case is fixed, and the specific connection type of the two is as follows: the side wall outward bending that box body 4 is located at box mouth forms cricoid turn over
Side, and flange and the rear wall of finishing box 1 mutually recline.It is preferred that flange is fixed with 1 phase of finishing box by welding, and this
When, the rear wall of finishing box 1 closes the box mouth of box body 4.
First Air Filter 6 is fixedly arranged in box body 4, at this point, the first Air Filter 6 by the inner cavity of box body 4 be separated into ante-chamber 4a and
Back cavity 4b, and ante-chamber 4a is connected to back cavity 4b by the mesh on the first Air Filter 6.Specifically, have on the inner wall of box body 4
Limit base 4c annular in shape, limit base 4c and box body 4 are coaxial and the two is an integral structure.First Air Filter 6 is in cuboid
And it is conllinear with the central axis of both limit base 4c.It is equipped with the pressure ring 17 of position and limit base 4c face in ante-chamber 4a, and presses
Ring 17 is mutually fixed with limit base 4c by several screws.First Air Filter 6 is between pressure ring 17 and limit base 4c, and first
The both ends of the surface of Air Filter 6 are respectively with pressure ring 17 and limit base 4c closely against by the stable limit of Air Filter.
As shown in Fig. 2, the side wall of box body 4 is equipped with the air intake 4d being connected to back cavity 4b, air-heater 5 is mounted on box body 4
Side, and the gas outlet of air-heater 5 is connected to above-mentioned air intake 4d.It is preferred that air-heater 5 is mutually solid by flange arrangement with box body 4
It is fixed.Each inlet end 2a both passes through finishing box 1 and is inserted into ante-chamber 4a, so that ante-chamber 4a is connected to the inner cavity of inlet end 2a.
Finishing box 1 and inlet end 2a are formed by sealing structure to be sealed, and in the present embodiment, is had in finishing box 1 and is stretched for inlet end 2a
The quantity of through-hole out, through-hole is identical as inlet end 2a and position face one by one;Inlet end 2a by welding with arrangement
1 phase of case is fixed;As shown in fig. 6, sealing structure includes the annular groove on inlet end 2a outer wall and is set in annular groove
Sealing ring 1, the lateral wall of sealing ring 1 and the hole wall of through-hole offset, so as to be formed between inlet end 2a and finishing box 1
Reliable sealing.
Pump bowl 3 is wherein cased with outside two outlet side 2b in one group of exhaust unit, and at this point, the part outlet side 2b is stretched out
Pump bowl 3, i.e. the distance between outlet side 2b and fabric are less than the distance between pump bowl 3 and fabric.On it is preferred that
The exhaust unit stated is this group of exhaust unit at exit slot 1b.
Two pump bowls 3 are in cuboid, and pump bowl 3 is consistent with the length extending direction of both outlet side 2b,
At this point, forming bleed-off passage 19 annular in shape between 3 inner wall of outlet side 2b outer wall and pump bowl.It further illustrates, such as Fig. 2 institute
Show, with annular gear edge on the upper end inner wall of pump bowl 3, annular gear edge covers outside the 2b of outlet side, and the two passes through the side of welding
Formula is mutually fixed;The inner wall of two long sides of outlet side 2b is one 2b1 of air guide inclined-plane being inclined outwardly, two long sides of outlet side 2b
Outer wall is intilted two 2b2 of air guide inclined-plane, and the inner wall of two long sides of pump bowl 3 is the air guide inclined-plane being inclined outwardly
Three 3a.
As shown in Figures 3 to 8, gather qi together case 7 and exhaust fan 14 are each attached in finishing box 1, and the entrance of exhaust fan 14 with
And two bleed-off passages, 19 three is connected to the inner cavity of gather qi together case 7.
Specifically, as shown in Figure 3 and Figure 5, gather qi together case 7 includes cabinet 7a open at one end and covers on cabinet 7a and incite somebody to action
The case lid 7b of above-mentioned closure of openings.Wherein, cabinet 7a and the rear side inner wall of finishing box 1 are mutually fixed, and preferred the two passes through weldering
The mode connect is mutually fixed.On the inner wall of cabinet 7a have the circumferential support seat 7a1 coaxial with cabinet 7a, and support base 7a1 and
Cabinet 7a is an integral structure.Support base 7a1 reclines on the end face of one end of case lid 7b to be had the inner cavity of support base 7a1
The second Air Filter 8 covered has the positioning region 7b1 annularly protruded, positioning region 7b1 and support base on the inner wall of case lid 7b
7a1 face, the second Air Filter 8 are positioned by being clamped between support base 7a1 and positioning region 7b1.
The rear wall of two pump bowls 3 extends outward to form straight tube-like air inlet portion 3b, and both air inlet portion 3b and pump bowl 3
Inner cavity be connected.Being cased with outside air inlet portion 3b can be along its connecting tube 20 in axial sliding, and between air inlet portion 3b and connecting tube 20
Equipped with the detachable locking mechanism that can lock connecting tube 20.Case lid 7b runs through in the horizontal direction to be opened up there are two mounting hole,
And two wherein one end of connecting tube 20 be each passed through two mounting holes, be connected to the inner cavity of both connecting tube 20 and cabinet 7a.Into one
Step explanation, the shape and size of mounting hole are identical as connecting tube 20, and connecting tube 20 by way of tight fit with case lid 7b
It is mutually fixed, company between the two is also ensured that under the premise of ensuring that connecting tube 20 is fixed with case lid 7b phase using such design
It connects to form reliable sealing.
In the present embodiment, as shown in figure 5, detachable locking mechanism includes through the threaded hole on 20 side wall of connecting tube
One, the threaded hole two on air inlet portion 3b outer wall and the bolt 1 being screwed onto threaded hole one, and the end of bolt 1
It is threaded onto threaded hole two, thus steady lock connecting tube 20.It further illustrates, the lateral wall of air inlet portion 3b is equipped with coaxial
Annular seal pocket, seal groove is equipped with sealing ring 2 22 in the seal groove between detachable locking mechanism and case lid 7b, and
The lateral wall of sealing ring 2 22 and the inner wall of connecting tube 20 offset, and form the connection between connecting tube 20 and air inlet portion 3b reliably
Sealing.
As shown in figure 5, the side wall of cabinet 7a is equipped with aspirating hole, and to be located at second dust-proof for aspirating hole and connecting tube 20
The two sides of net 8, exhaust fan 14 is set to the lower section of cabinet 7a, and the entrance of the exhaust fan 14 is connected to aspirating hole.
Wherein the specific mounting means of exhaust fan 14 is as follows: as shown in figure 8, L-shaped bracket 9 is equipped in finishing box 1, it should
Bracket 9 includes the mounting portion one and horizontally disposed mounting portion two being vertically arranged, and mounting portion one and mounting portion two are integral type
Structure.In the present embodiment, mounting portion one and mounting portion two are plate-like, and mounting portion one and the rear side inner wall of finishing box 1 recline,
And mounting portion one is detachably fixed by screw with finishing box 1.As shown in Figure 1, being equipped in bracket 9 is in flat support plate
10, and support plate 10 and mounting portion two are parallel.More springs 1, and spring one are equipped between support plate 10 and mounting portion two
11 both ends are mutually fixed with the downside of support plate 10 and the upside of mounting portion two respectively;Exhaust fan 14 is mounted on the upper of support plate 10
Side.It is preferred that the both ends of spring 1 are fixed with support plate 10 and mounting portion two-phase respectively by welding.
It further illustrates, the guide rod 23 in direct rod shape is vertically and fixedly provided on the downside of support plate 10, guide rod 23
Quantity is identical as spring 1, and every spring 1 covers outside corresponding guide rod 23.Mounting portion two passes through along the vertical direction
It wears and offers pilot hole, the quantity of pilot hole is identical as guide rod 23 and face, the lower end of every guide rod 23 are equal one by one for position
Across corresponding pilot hole, and nut 24 is bolted with outside the lower end of guide rod 23, under the upper surface of nut 24 and mounting portion two
Side offsets.Under the cooperation of guide rod 23 and pilot hole, the movement to spring 1 and support plate 10 it can rise preferably simultaneously
Guiding role, it is ensured that spring 1 precisely move.
The specific connection type of exhaust fan 14 and cabinet 7a are as follows:
Exhaust fan 14 includes the exhaust part 14a in straight tube-like, and exhaust part 14a is arranged along the vertical direction and port is pumping thereon
The entrance of blower 14.The upper end exhaust part 14a is inserted in aspirating hole, and by close between exhaust part 14a outer wall and aspirating hole hole wall
Seal 3 25 forms sealing.In the present embodiment, the lateral wall of exhaust part 14a is cylindrical surface, and aspirating hole is circular hole, and exhaust part
There is gap annular in shape between the lateral wall of 14a and the hole wall of aspirating hole.It is formed on the lateral wall of exhaust part 14a annular in shape
Groove three, sealing ring 3 25 are made of rubber material, which is located in groove three, and the lateral wall of sealing ring 3 25
It offsets with the hole wall of aspirating hole.
Further illustrate, the inner wall of finishing box 1 is equipped with sliding slot 1c, sliding slot 1c is in long strip and its length extending direction with
The height extending direction of finishing box 1 is consistent.Matched sliding block 26, and sliding block 26 and one phase of mounting portion are equipped in sliding slot 1c
It is fixed, preferable guiding role is played with the installation to exhaust fan 14 and cabinet 7a, to facilitate the assembling of the two.
As shown in Fig. 2, air-heater 5 includes the air inlet end 5a in straight tube-like, air inlet end 5a is horizontally disposed, side
There is the straight tube-like interconnecting piece 5b outwardly protruded on wall.Interconnecting piece 5b be arranged along the vertical direction and its inner cavity and air inlet end 5a it is interior
Chamber connection.Return pipe 32 is set to 1 top of finishing box, and there are two ends for the tool of return pipe 32, and one of end extend into finishing box 1
Extraction fan 13 is installed in the interior and end, another end sleeve is formed outside interconnecting piece 5b and between the two through sealing ring 4 27
Sealing.
Wherein,
The connection type of extraction fan 13 and return pipe 32 is specific as follows: return pipe 32, which is located to be formed on the inner wall at port, is in
Cricoid step groove, above-mentioned extraction fan 13 be set to step groove in, and the shell of extraction fan 13 by welding with step
The bottom wall of slot is mutually fixed.
The specific connection type of return pipe 32 and finishing box 1 is as follows: offering as shown in figure 4, the top of finishing box 1 is run through
For the location hole that 32 end of return pipe passes through, the lateral wall of return pipe 32 is equipped with groove five annular in shape, is equipped in groove five
Sealing ring 5 28, and the lateral wall of sealing ring 5 28 and the hole wall of location hole offset.It is preferred that return pipe 32 and finishing box 1 pass through weldering
The mode connect is mutually fixed.
The specific connection type of return pipe 32 and interconnecting piece 5b are as follows: being formed on the lateral wall of interconnecting piece 5b annular in shape recessed
Slot four, sealing ring 4 27 are located in groove four, and the lateral wall of sealing ring 4 27 and the inner sidewall of return pipe 32 offset, so that even
Reliable sealing is formed between socket part 5b and return pipe 32.
As shown in fig. 7, being equipped with the irreversible engine for making its one-way conduction in this one end being connected on return pipe 32 with interconnecting piece 5b
Structure, and the conducting direction of one-way mechanism is drained into the direction phase in air inlet end 5a with gas from return pipe 32 by interconnecting piece 5b
Together.In the present embodiment, one-way mechanism includes the support ring 29 being screwed onto interconnecting piece 5b, the sealing being screwed onto return pipe 32
Ring 30 and the spring 2 12 and baton round 31 being set between sealing ring 30 and support ring 29.Wherein, the both ends of spring 2 12
It offsets respectively with support ring 29 and baton round 31, and under the action of 2 12 elastic force of spring, baton round 31 has and sealing ring 30
It offsets and by the closed trend of the lower port of sealing ring 30.
In the present embodiment, return pipe 32 is the sandwich of internal iron sheet, middle part heat preservation rock and external iron sheet composition.
Using above-mentioned design, under the premise of ensuring 32 intensity of return pipe, and the thermal insulation property of return pipe 32 is strengthened.
In use, fabric is entered in finishing box 1 by entering cloth mouth 1a, and under the guiding role of fabric guide roll 16, from
Exit slot 1b stretches out;Fabric strainer plays the role of being tensioned fabric;Hot gas is sent in exhaust pipe 2 by gas supply mechanism, and
It is expelled on fabric by the outlet side 2b of exhaust pipe 2 to dry fabric;The work of exhaust fan 14 makes to generate negative pressure in bleed-off passage 19,
To extract the impurity such as the dust adhered on fabric out, to ensure the cleaning of fabric.
In the course of work, supplies gas in return pipe 32 in extraction fan 13 and what air-heater 5 was evacuated in return pipe 32 is total to
Under same-action, baton round 31 can overcome the elastic force of spring 2 12 to move down to open the lower port of sealing ring 30, make air inlet end 5a and
Return pipe 32 is connected, and the hot gas in finishing box 1 is withdrawn into air-heater 5, to reduce the load of air-heater 5.
Embodiment two
The present embodiment two is essentially identical with the structure and principle of embodiment one, the difference is that: detachable locking
Mechanism includes through the threaded hole three on 20 side wall of connecting tube and the bolt two being screwed onto threaded hole three, and the end of bolt two
The outer wall tight abutment in portion and air inlet portion 3b.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.