CN1078486C

CN1078486C - Suction device in textile machine

Info

Publication number: CN1078486C
Application number: CN96121697A
Authority: CN
Inventors: W·斯拉维克; V·彼得里尼
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 1995-11-30
Filing date: 1996-11-29
Publication date: 2002-01-30
Anticipated expiration: 2016-11-29
Also published as: DE19648561B4; CN1154260A; ITMI962067A1; IT1284925B1; JPH09170124A; DE19648561A1

Abstract

In a suction cleaning system for a textile machine, to extract waste material, a centrifugal separator (9) is linked to the shrouding mantle (8) at the air exhaust side of the filter (5). It has a dust separation channel (10) with a curved outer wall (11) to deflect the exhaust air, extending to an outlet cross-section (14) of the channel. A part of the outlet cross-section (14) forming the outer wall (11) coincides with the entry cross-section (15) of the return channel (16) opening into the suction tube (3). To provide a suction device so that the subsequent direct outflow of air to the periphery may not cause a problem due to its ability to sufficiently remove dust from discharged air with the suction device for itself. This suction device in spinning machinery is equipped with a centrifugal separator 9, connected to a covering unit 8 surrounding the air discharge side of a filter element 5 and the centrifugal separator 9 provided with a dust separation passage 10 having a curved outer wall 11 so as to deflect discharged air. The curved outer wall 11 is extended to an outflow cross-section 14 of the dust separation passage 10 and a part of the outflow cross-section 14 in contact with the outer wall 11 is connected to an inflow cross-section 15 of a return guide passage 16, which is opened to a suction conduit 3.

Description

Dust exhaust apparatus in a kind of weaving loom

The present invention relates to be used to discharge in weaving loom the dust exhaust apparatus of refuse, this device has a suction channel, an air exhauster of installing with described pipeline being aligned and a filter element that is installed in described pipeline output.

At weaving loom, particularly this dust exhaust apparatus in the fiber process weaving loom is known.For example, in combing machine, utilize this dust exhaust apparatus to discharge, the refuse that waste material particulate and dust form exist with short fiber.Usually be equipped with one to the port of export tapered diminish be the filter element of cloth filter, in order to blocking most refuses, particularly fiber and waste material particulate, but can allow the overwhelming majority carry gases to pass through.The refuse that is blocked is discharged from and is transported in the collection container through filter delivery outlet end with the nubbin of carrying gas subsequently.But the small residue, particularly dust that include refuse by the gas of filter usually.Therefore, we do not wish these gases are directly entered in the external environment.A kind of common possibility practice be with the gas in these shop buildings supply with the multi-section weaving loom filter together with other gas and before they are sent into surrounding environment, it purified in the shared aircondition and to the discharge gas that is produced in the getter device.

One object of the present invention is to provide more than one getter devices of mentioning, and in this way, the gas of discharge just can be separated from dust substantially at this device itself, thereby is directly entered in the surrounding environment under the situation that can not produce any problem., this weaving loom station with a central air-conditioning is quite expensive.

Just can realize this purpose in the following manner according to the present invention, one cyclone links to each other with the housing that surrounds described filter element discharge gas side, this separator is equipped with a dust separator conduit with arc outer wall, this arc outer wall is in order to the described discharge gas of deflection and extend upwardly to the output cross section of described conduit, and the part of the described output cross section adjacent with this outer wall should overlap with the input cross section of return duct, and this return duct communicates with described suction channel.

Below, by embodiments of the invention being illustrated, wherein in conjunction with relevant drawings:

Figure 1 shows that one has the schematic diagram of the part combing machine of dust exhaust apparatus, and

Fig. 2 and Fig. 3 are respectively the improvement schematic diagram with the represented described part getter device of identical representation among Fig. 1.

Fig. 1 has schematically shown the part combing machine that has some combing heads, and each combing head all is equipped with the lap 1 of a coiling, and this lap is released and be carried out combing by combing equipment (not shown) in duration of work.By combing short fiber and foreign material are removed from described lap.These refuses are inhaled in the interior suction line 2 of each combing head.Suction line 2 is connected with the shared suction channel 3 that an air exhauster 4 is housed.One cloth filter 5 links to each other with the output of pipeline 3, and this cloth filter 5 is tapered to the direction of delivery outlet 6 is tapered.

Refuse major part, particularly short fiber and all waste material particulates of being provided by suction channel 3 are all blocked by cloth filter 5, and most of gas of carrying can pass through cloth filter 5.

The refuse that is blocked is discharged from along with the nubbin of carrying gas reaches the pipeline 7 that links to each other with this output 6 by described cloth filter 5 outputs 6, and for example, this nubbin gas flow is along about 15% of flowing gas amounts in the described pipeline 3.

The discharge gas that passes through from filter 5 filter clothes has comprised certain percentile waste particles that exists with the dust form.Here it is why this discharge gas can not directly be discharged into the reason of surrounding environment.

In order to remove these dusts from discharge gas, according to the present invention, the discharge gas side of described conical filter 5 is surrounded by a housing 8, and this housing communicates with a cyclone 9 at its top.Cyclone 9 is equipped with a dust separator conduit 10 with arc outer wall 11 and inboard guide wall 12, and this arc outer wall makes the discharge gas turns.The sweep of described outer wall is such as represented, is suitable for extending approximately greater than 180 °.Dust separator conduit 10 is extended downward the sidewall sealing of casing 13 upsides in the one side.The setting of interior guide wall 12 should make dust separator conduit 10 diminish along the airflow direction contraction.The flow velocity that can improve gas so also also causes the increase of centrifugal force therefrom.

Described outer wall 11 and inwall 12 extend to the output cross section part 14 of dust separator conduit 10.Coincide with return duct 16 input cross sections 15 with described outer wall 11 this part adjacent output cross section 14, these return duct 16 lower ends are connected with intake line 3 in the suction side of air exhauster 4.

During operation, when the gas of discharging during by dust separator conduit 10, because the result of centrifugal force, the dust particle in discharging gas can be assembled outside near the wall 11.An and part that contain dust particle adjacent with outer wall 11 discharged gas and can be entered in the return duct 16 and be inhaled into once more in the suction channel 3 by input cross section 15.This part is discharged gas and is pressurizeed once more through filter 5 and whizzer 9.The nubbin of described discharge gas, its dust accumulation density is weakened by centrifugal force, discharges and enters subsequently the cross section 15 from the output cross section of dust separator conduit 10.

Preferably will place the described casing 13 on the ground 17 to be installed under the output cross section 14.It is used for receiving the discharge gas nubbin that has reduced dust density.This casing 13 is included in the output perforate 18 of its underpart, in order to discharge the discharge gas near the floor, can not reach the height of operator's head easily so that make the dust particle that is mixed in the discharge gas reduce to ground at an easy rate.Casing 13 comprises that also one has the filter 5 of housing and return duct 16.

The size of return duct 16 input cross sections 15 is suitable for the 10-50% of dust separator conduit 10 output cross sectional dimensions, is preferably about 30%.

In above-described dust exhaust apparatus, utilize simple device just can reduce to enter the dust content of discharging in the surrounding environment in the gas significantly.If dust density is in suction channel 3 in the gas that produces from the combing machine combing head (before the inlet of return duct 16) is numerical value K, and the discharge gas dust density that enters casing 13 from dust separator conduit 10 output cross sections 14 only is the 20-40% of K value so.

Figure 2 shows that a kind of improvement of dust separator conduit 10.1, wherein guide wall 12 is replaced by guide wall 12.1 in short along linearly extended in the arc among Fig. 1.Can cause compared to Figure 1 like this, dust separator conduit 10.1 has big output cross section 14.1, among Fig. 2 other parts of dust exhaust apparatus then with Fig. 1 in identical.

Figure 3 shows that another kind of improved form, wherein at first dust separator conduit 10 has the profile shown in Fig. 1.In addition, second guide wall 19 is set under the interior guide wall 12, realize that in this way the discharge gas that sends and enter subsequently return duct 10 input cross sections 15 from dust separator conduit 10 output cross sections 14 does not enter described casing 13, and enter in the space between two described guide wall 12 and 19.Guide this discharge gas to leave this space by the through hole 20 that is positioned on dust separator conduit 10 1 sidewalls.

Claims

1, a kind of weaving loom dust exhaust apparatus that is used to discharge refuse, this device has a suction channel (3), one suction blower (4) that is provided with described suction channel being aligned, and the filter element (5) that links to each other with this line pipe road output, it is characterized in that: a whizzer (9) links to each other with a housing (8), this housing (8) is in order to surround the discharge gas sidepiece of described filter element (5), separator (9) is equipped with a dust separator conduit (10) with arc outer wall (11), this outer wall (11) makes the output cross section (14) of discharging gas turns and extending to described conduit, and near the part (14) of the output cross section described outer wall (11) overlaps with the input cross section (15) of return duct (16), and this return duct communicates with aspirating air pipe (3).

2, dust exhaust apparatus according to claim 1 is characterized in that: described return duct (16) is connected with aspirating air pipe (3) on described air blast (4) suction side.

3, dust exhaust apparatus according to claim 1 and 2 is characterized in that: the described filter element (5) as filter is installed with the form that diminishes gradually to output (6).

4, according to any described dust exhaust apparatus in the claim 1 to 3, it is characterized in that: described dust separator conduit (10) is equipped with an inwall (12) relative with described outer wall (11), and so that the mode that described dust separator conduit (10) reduces along airflow direction be shaped and install.

5, getter device according to claim 4 is characterized in that: described inwall (12) also is provided with the arc form.

6, according to any described getter device in the claim 1 to 5, it is characterized in that: the described outer wall (11) of described dust separator conduit (10) has one approximately greater than 180 ° sweep.

7, according to any described getter device in the claim 1 to 6, it is characterized in that: the size of described return duct (16) input cross section (15) is preferably the 10-50% of described dust separator conduit (10) output cross section (14) size.

8, according to any described getter device in the claim 1 to 7, it is characterized in that: place ground casing (13) to be set under described dust separator conduit (10) the output cross section (14), this casing receives the discharge gas that described dust separator conduit (10) the output cross section (14) outside described return duct (16) input they (15) is discharged with its upside, and be provided with steam vent (18) in the bottom of this casing, be used for described discharge gas is discharged among the surrounding environment.

9, getter device according to claim 8 is characterized in that: described filter (5) and described return duct (16) are installed in the described casing (13).

10, according to any described getter device in the claim 1 to 7, it is characterized in that: in order to discharge gas, to have a horizontal transverse tube (12 of exporting perforate (20), 19) be installed in described dust separator conduit (10) output cross section (14) downstream partly, this separator conduit is installed in the outside of described return duct (16) input cross section (15).