CN111974142A - Dust collector is used in cotton yarn weaving workshop - Google Patents
Dust collector is used in cotton yarn weaving workshop Download PDFInfo
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- CN111974142A CN111974142A CN202010803591.1A CN202010803591A CN111974142A CN 111974142 A CN111974142 A CN 111974142A CN 202010803591 A CN202010803591 A CN 202010803591A CN 111974142 A CN111974142 A CN 111974142A
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- wall
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- box body
- fixedly connected
- cotton yarn
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/10—Combinations of devices covered by groups B01D45/00, B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention discloses a dust removal device for a cotton yarn spinning workshop, which comprises a box body, wherein air vents are formed in the outer walls of two sides of the box body, the inner walls of the two air vents are fixedly connected with exhaust pipes, openings are formed in the outer walls of the two sides of the two exhaust pipes, a filter screen is fixedly connected to the inner wall of each opening, an air inlet is formed in the outer wall of the top of the box body, an air inlet pipe is arranged on the inner wall of each air inlet, a fan is fixedly connected to the inner wall of each air inlet pipe, a sinking port is formed in the outer wall of the bottom of the box body, a fixing plate is clamped to the inner wall of the sinking port, and threaded ports. The dust-proof device can prevent dust and wool from gathering together to influence the processing efficiency of the device, can prevent the wool from falling off from the second barbs due to the fact that the flowing speed of the dust is high, and can prevent air from entering the device to interfere the cleaning of the dust.
Description
Technical Field
The invention relates to the technical field of cotton yarn spinning, in particular to a dust removal device for a cotton yarn spinning workshop.
Background
In the production process of cotton yarn weaving workshop, can produce some battings and dust and accumulate subaerial, in order to avoid these battings and dust long-term accumulation and influence the environment in cotton yarn weaving workshop, need clear up, remove dust these battings and dust, so need use dust collector.
Through the retrieval, chinese patent is granted No. CN 210751845U's patent, discloses a dust collector for cotton yarn weaving workshop, including box and bottom plate, the mounting hole has all been opened to the both sides outer wall of box, and the same dust collection box of inner wall fixedly connected with of two mounting holes, open at the top of box has the through-hole, has the water tank through the bolt fastening in the through-hole, and the bottom inner wall of water tank has the suction pump through the bolt fastening, and open at the lateral wall of water tank and the top of box has the round hole, and the inner wall of round hole is pegged graft and is had same return bend, and the one end of return bend is pegged graft at the exit end of suction pump, and open at the top of dust collection box has two fixed orificess, the equal fixedly connected with. Dust collector for cotton yarn weaving workshop in above-mentioned patent exists following not enough: when the existing device is used for treating dust and lint, the dust and lint can be accumulated more, so that the treatment efficiency of the device on the dust and lint is reduced.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a dust removal device for a cotton yarn spinning workshop.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dust removal device for a cotton yarn spinning workshop comprises a box body, wherein air vents are formed in the outer walls of two sides of the box body, the inner walls of the two air vents are fixedly connected with exhaust pipes, openings are formed in the outer walls of two sides of the exhaust pipes, filter screens are fixedly connected to the inner walls of the openings, an air inlet is formed in the outer wall of the top of the box body, an air inlet pipe is arranged on the inner wall of the air inlet pipe, a fan is fixedly connected to the inner wall of the air inlet pipe, a sinking port is formed in the outer wall of the bottom of the box body, a fixing plate is clamped on the inner wall of the sinking port, threaded ports are formed in two sides of the outer wall of the bottom of the fixing plate and two sides of the inner wall of the top of the sinking port, fastening bolts are connected to the inner wall of the threaded ports, a guide, and the shape of first barb is "feng" style of calligraphy, one side outer wall of box is provided with the observation window.
Furthermore, the outer wall of the bottom of the fixing plate is fixedly connected with a handle, and anti-skid lines are carved on the outer wall of the handle.
Furthermore, two filter screens are connected between the inner walls of the two opposite sides of the box body through hinges, and the two filter screens are positioned on two sides of the guide plate.
Further, two one side outer wall of filter screen all is provided with a plurality of second barbs, and the shape of second barb is snowflake form.
Further, the inner wall fixedly connected with two backup pads of box, and the fixed mouth has all been seted up to one side outer wall of two backup pads.
Furthermore, the inner walls of two opposite sides of the two fixed openings are rotatably connected with a rotating frame through bearings, the cross section of the rotating frame is X-shaped, and a plurality of puncture needles are arranged on the outer wall of the rotating frame.
Furthermore, the two sides of the inner wall of the top of the box body are both connected with second baffles through hinges, third springs are fixedly connected between the second baffles and the box body, and the second baffles are located on the two sides of the air inlet.
Further, the equal fixedly connected with second spring in both sides of box top outer wall, and the bottom outer wall fixedly connected with pipe of second spring, the bottom outer wall of pipe is provided with a plurality of atomizer, and the water inlet has all been seted up to the both sides of box top outer wall, has the bellows through flange joint between the inner wall edge of water inlet and the pipe.
Furthermore, two the relative both sides inner wall of blast pipe all has first baffle through hinged joint, and fixedly connected with first spring between one side outer wall of first baffle and the blast pipe.
Furthermore, the two sides of the outer wall of the bottom of the box body are fixedly connected with vibrating motors.
The invention has the beneficial effects that:
1. through the arranged guide plate in the shape of the Chinese character 'ren' and the first barb in the shape of the 'feng' and when dust and wool enter the device through the fan, the guide plate can shunt the dust and the wool so as to accelerate the treatment efficiency of the device on the dust and the wool, prevent the dust and the wool from gathering together to influence the treatment efficiency of the device, and through the first barb in the shape of the 'feng' and can increase the contact area between the wool and the first barb so as to effectively fix the wool on the first barb, thereby treating the wool;
2. the snowflake-shaped second barbs can further treat the wool doped in the dust so as to improve the treatment efficiency of the device on the wool, and the snowflake-shaped second barbs can prevent the wool from falling off from the second barbs due to the high flowing speed of the dust, so that the cleaning of the wool is influenced;
3. through the first spring and the first baffle that set up, can block the air in the external world, prevent that the inside that the air entered into the device from causing the interference to the clearance of dust, simultaneously, when the inside atmospheric pressure of device is less, the gas after the processing can discharge through the filter screen, when the inside gas of device assembles when more, because atmospheric pressure can make first baffle open to can pass through blast pipe discharge with gas.
Drawings
FIG. 1 is a schematic cross-sectional view of a dust removing apparatus for a cotton yarn weaving workshop according to embodiment 1;
FIG. 2 is a schematic structural view of a dust removing device for a cotton yarn weaving workshop, shown at the position A in example 1;
FIG. 3 is a schematic view showing the overall structure of a dust removing apparatus for a cotton yarn weaving workshop according to embodiment 1;
fig. 4 is a schematic cross-sectional structure view of the dust removing device for the cotton yarn weaving workshop in embodiment 2.
In the figure: the device comprises a box body 1, a puncture needle 2, a fixing plate 3, a handle 4, a guide plate 5, a fastening bolt 6, a supporting plate 7, a fixing port 8, a rotating frame 9, a first baffle 10, a first spring 11, an exhaust pipe 12, a filter screen 13, a second spring 14, a water inlet 15, a filter screen 16, a second baffle 17, a fan 18, an air inlet pipe 19, a third spring 20, a first barb 21, a corrugated pipe 22, a guide pipe 23, an atomizing nozzle 24, a second barb 25, an observation window 26 and a vibrating motor 27.
Detailed Description
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-3, a dust removing device for a cotton yarn spinning workshop comprises a box body 1, wherein exhaust ports are formed in the outer walls of two sides of the box body 1, the inner walls of the two exhaust ports are connected with exhaust pipes 12 through bolts, through ports are formed in the outer walls of two sides of the two exhaust pipes 12, the inner walls of the through ports are connected with a filter screen 13 through bolts, an air inlet is formed in the outer wall of the top of the box body 1, an air inlet pipe 19 is arranged on the inner wall of the air inlet pipe 19, a fan 18 is connected to the inner wall of the air inlet pipe 19 through bolts, a sinking port is formed in the outer wall of the bottom of the box body 1, a fixing plate 3 is clamped on the inner wall of the sinking port, threaded ports are formed in two sides of the outer wall of the bottom of the fixing plate 3 and two sides of the inner wall, the outer wall of both sides of baffle 5 all has first barb 21 through hinged joint, and the shape of first barb 21 is "feng" style of calligraphy, and one side outer wall of box 1 is provided with observation window 26.
Wherein, the bottom outer wall of fixed plate 3 has handle 4 through bolted connection, and the outer wall of handle 4 is carved with anti-skidding line.
Wherein, two filter screens 16 are connected between the inner walls of two opposite sides of the box body 1 through hinges, and the two filter screens 16 are positioned at two sides of the guide plate 5.
Wherein, one side outer wall of two filter screens 16 all is provided with a plurality of second barbs 25, and the shape of second barb 25 is snowflake form.
Wherein, the inner wall of box 1 has two backup pads 7 through bolted connection, and the fixed mouthful 8 has all been seted up to one side outer wall of two backup pads 7.
Wherein, the inner walls of two opposite sides of the two fixed ports 8 are rotatably connected with a rotating frame 9 through bearings, the cross section of the rotating frame 9 is X-shaped, and the outer wall of the rotating frame 9 is provided with a plurality of puncture needles 2.
Wherein, the both sides of box 1 top inner wall all have second baffle 17 through hinged joint, and have third spring 20 through bolted connection between second baffle 17 and the box 1, and second baffle 17 is located the both sides of air inlet.
Wherein, the both sides of 1 top outer wall of box have second spring 14 through bolted connection, and the bottom outer wall of second spring 14 has pipe 23 through bolted connection, and the bottom outer wall of pipe 23 is provided with a plurality of atomizer 24, and water inlet 15 has all been seted up to the both sides of 1 top outer wall of box, has bellows 22 through flange joint between the inner wall edge of water inlet 15 and the pipe 23.
Wherein, the relative both sides inner wall of two blast pipes 12 all has first baffle 10 through hinged joint, and has first spring 11 through bolted connection between one side outer wall of first baffle 10 and blast pipe 12.
The working principle is as follows: when the dust and wool flock treatment device is used, the fan 18 is started, the fan 18 absorbs dust and wool flock to the inside of the box body 1, when the dust and wool flock enter the device through the fan 18, the dust and wool flock can be subjected to shunting treatment through the guide plate 5, so that the treatment efficiency of the device on the dust and wool flock is accelerated, the dust and wool flock are prevented from being gathered together to influence the treatment efficiency of the device, the contact area between the wool flock and the first barbs 21 can be increased through the first barbs 21 in the shape of a Chinese character 'feng', so that the wool flock can be effectively fixed on the first barbs 21, the wool flock can be treated, the flow direction of the dust can be guided through the second baffle 17, the wool flock doped in the dust can be further treated through the second barbs 25, the treatment efficiency of the device on the wool flock can be improved, the snowflake-shaped second barbs 25 can prevent the wool flock from falling off from the second barbs 25 due to the fact that the flow speed of the dust is high, rotating turret 9 and felting needle 2 through the X type can further handle dust and batting, with the external water source of water inlet 15, thereby carry out the dust fall through atomizer 24 and handle the dust, the gas after the processing can discharge through filter screen 13, when the inside gas of device assembles when more, because atmospheric pressure can make first baffle 10 open, thereby can pass through blast pipe 12 with gas and discharge, after the processing is accomplished, take out fixed plate 3 through fastening bolt 6 and handle 4, thereby carry out cleaning to the inside of device.
Example 2
Referring to fig. 4, compared with embodiment 1, in the dust removing device for a cotton yarn weaving workshop, in the embodiment, vibration motors 27 are connected to two sides of the outer wall of the bottom of a box body 1 through bolts, so that dust adhered to the inner wall of the device can be treated.
The working principle is as follows: when the dust and wool flock treatment device is used, the fan 18 is started, the fan 18 absorbs dust and wool flock to the inside of the box body 1, when the dust and wool flock enter the device through the fan 18, the dust and wool flock can be subjected to shunting treatment through the guide plate 5, so that the treatment efficiency of the device on the dust and wool flock is accelerated, the dust and wool flock are prevented from being gathered together to influence the treatment efficiency of the device, the contact area between the wool flock and the first barbs 21 can be increased through the first barbs 21 in the shape of a Chinese character 'feng', so that the wool flock can be effectively fixed on the first barbs 21, the wool flock can be treated, the flow direction of the dust can be guided through the second baffle 17, the wool flock doped in the dust can be further treated through the second barbs 25, the treatment efficiency of the device on the wool flock can be improved, the snowflake-shaped second barbs 25 can prevent the wool flock from falling off from the second barbs 25 due to the fact that the flow speed of the dust is high, rotating turret 9 and felting needle 2 through the X type can further handle dust and batting, with water inlet 15 external water source, thereby carry out the dust fall through atomizer 24 and handle the dust, the gas after the processing can discharge through filter screen 13, when the inside gas of device assembles when more, because atmospheric pressure can make first baffle 10 open, thereby can pass through blast pipe 12 with gas and discharge, after the processing is accomplished, take out fixed plate 3 through fastening bolt 6 and handle 4, thereby carry out cleaning to the inside of device, can handle the dust of adhesion at the device inner wall through vibrating motor 27.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The dust removal device for the cotton yarn spinning workshop comprises a box body (1) and is characterized in that exhaust ports are formed in the outer walls of the two sides of the box body (1), exhaust pipes (12) are fixedly connected to the inner walls of the two exhaust ports, through ports are formed in the outer walls of the two sides of the two exhaust pipes (12), a filter screen (13) is fixedly connected to the inner wall of each through port, an air inlet is formed in the outer wall of the top of the box body (1), an air inlet pipe (19) is arranged on the inner wall of the air inlet pipe (19), a fan (18) is fixedly connected to the inner wall of the air inlet pipe (19), a sinking port is formed in the outer wall of the bottom of the box body (1), a fixing plate (3) is clamped to the inner wall of the sinking port, threaded ports are formed in the two sides of the outer wall of the bottom of the fixing plate (3) and the two sides of, and the shape of baffle (5) is "people" style of calligraphy, the both sides outer wall of baffle (5) all has first barb (21) through hinged joint, and the shape of first barb (21) is "rich" style of calligraphy, one side outer wall of box (1) is provided with observation window (26).
2. The dust removing device for the cotton yarn textile workshop as claimed in claim 1, wherein a handle (4) is fixedly connected to the outer wall of the bottom of the fixing plate (3), and anti-skid grains are carved on the outer wall of the handle (4).
3. The dust removing device for the cotton yarn textile workshop as claimed in claim 1, wherein two filter screens (16) are hinged between the inner walls of two opposite sides of the box body (1), and the two filter screens (16) are positioned at two sides of the guide plate (5).
4. The dust removing device for the cotton yarn weaving workshop as claimed in claim 3, wherein one side outer wall of each of the two filter screens (16) is provided with a plurality of second barbs (25), and the second barbs (25) are snowflake-shaped.
5. The dust removal device for the cotton yarn textile workshop as claimed in claim 1 or 3, wherein two support plates (7) are fixedly connected to the inner wall of the box body (1), and fixing openings (8) are formed in the outer wall of one side of each of the two support plates (7).
6. The dust removing device for the cotton yarn weaving workshop as claimed in claim 5, characterized in that the inner walls of two opposite sides of the two fixing openings (8) are rotatably connected with a rotating frame (9) through bearings, the cross section of the rotating frame (9) is X-shaped, and the outer wall of the rotating frame (9) is provided with a plurality of felting needles (2).
7. The dust removing device for the cotton yarn textile workshop as claimed in claim 1, wherein the two sides of the inner wall of the top of the box body (1) are both connected with a second baffle plate (17) through hinges, a third spring (20) is fixedly connected between the second baffle plate (17) and the box body (1), and the second baffle plates (17) are positioned on the two sides of the air inlet.
8. The dust removal device for the cotton yarn textile workshop as claimed in claim 1, wherein the second springs (14) are fixedly connected to two sides of the outer wall of the top of the box body (1), the guide pipes (23) are fixedly connected to the outer wall of the bottom of the second springs (14), the plurality of atomizing nozzles (24) are arranged on the outer wall of the bottom of the guide pipes (23), the water inlets (15) are formed in two sides of the outer wall of the top of the box body (1), and the corrugated pipes (22) are connected between the edges of the inner walls of the water inlets (15) and the guide pipes (23) through flanges.
9. The dust removing device for the cotton yarn textile workshop as claimed in claim 1, wherein the inner walls of two opposite sides of the two exhaust pipes (12) are connected with a first baffle plate (10) through hinges, and a first spring (11) is fixedly connected between the outer wall of one side of the first baffle plate (10) and the exhaust pipes (12).
10. The dust removing device for the cotton yarn textile workshop as claimed in claim 1, wherein both sides of the outer wall of the bottom of the box body (1) are fixedly connected with a vibration motor (27).
Priority Applications (1)
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CN202010803591.1A CN111974142A (en) | 2020-08-11 | 2020-08-11 | Dust collector is used in cotton yarn weaving workshop |
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CN202010803591.1A CN111974142A (en) | 2020-08-11 | 2020-08-11 | Dust collector is used in cotton yarn weaving workshop |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112522901A (en) * | 2020-12-11 | 2021-03-19 | 江门市富源无纺布厂有限公司 | Production facility of non-woven fabrics |
CN114301149A (en) * | 2021-12-22 | 2022-04-08 | 山西三合盛智慧科技股份有限公司 | Solar energy saving and emission reduction system |
CN114712971A (en) * | 2022-04-21 | 2022-07-08 | 韩玉世家(南通)纺织品有限公司 | Waste velvet recovery device for cotton processing |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4737173A (en) * | 1986-07-03 | 1988-04-12 | Amway Corporation | Room air treatment system |
CN210186729U (en) * | 2019-05-22 | 2020-03-27 | 苏州亚久纺织有限公司 | Dust extraction is used in cloth printing and dyeing |
CN110980986A (en) * | 2019-12-02 | 2020-04-10 | 浙江巨丰管业有限公司 | Storage device for water distribution system |
CN210302828U (en) * | 2019-05-21 | 2020-04-14 | 泊头市亿利达环保机械设备有限责任公司 | Sack cleaner convenient to mediation inside deposition |
-
2020
- 2020-08-11 CN CN202010803591.1A patent/CN111974142A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4737173A (en) * | 1986-07-03 | 1988-04-12 | Amway Corporation | Room air treatment system |
CN210302828U (en) * | 2019-05-21 | 2020-04-14 | 泊头市亿利达环保机械设备有限责任公司 | Sack cleaner convenient to mediation inside deposition |
CN210186729U (en) * | 2019-05-22 | 2020-03-27 | 苏州亚久纺织有限公司 | Dust extraction is used in cloth printing and dyeing |
CN110980986A (en) * | 2019-12-02 | 2020-04-10 | 浙江巨丰管业有限公司 | Storage device for water distribution system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112522901A (en) * | 2020-12-11 | 2021-03-19 | 江门市富源无纺布厂有限公司 | Production facility of non-woven fabrics |
CN114301149A (en) * | 2021-12-22 | 2022-04-08 | 山西三合盛智慧科技股份有限公司 | Solar energy saving and emission reduction system |
CN114712971A (en) * | 2022-04-21 | 2022-07-08 | 韩玉世家(南通)纺织品有限公司 | Waste velvet recovery device for cotton processing |
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