CN111571449A - Sectional type dust pelletizing system - Google Patents

Abstract

The invention discloses a sectional dust removal system which comprises a closed structure movably arranged along a grinding station, wherein the closed structure is provided with a dust collection space for covering the grinding station in a sectional manner, the dust collection space is provided with openings which are closed through air curtains only at two ends in the sliding direction, a negative pressure space connected with a dust collection filtering module is arranged in the dust collection space, and the sectional grinding area on the grinding station is subjected to targeted dust collection through the movable dust collection space. The sectional type dust removal system can be well suitable for polishing and dust removal treatment of long and narrow workpieces such as wind blades and the like, has the advantages of flexible control, small occupied space, obvious dust removal effect and low energy consumption, and can be widely popularized and applied.

Description

Sectional type dust pelletizing system

Technical Field

The invention belongs to a special dust removal technology, and particularly relates to a sectional dust removal system.

Background

With the continuous progress of new energy technology in China, wind power generation is widely applied in the global range as a green and environment-friendly energy technology with huge potential. Wind blades are the core component of wind power generation, and the largest wind blade diameter is more than 70 meters, which is equivalent to the span of a boeing aircraft. The wind blade is ground and polished in the manufacturing process to generate a lot of fine dust, the dust is difficult to settle by gravity, floats in a workshop for a long time, is not easy to discharge after being sucked into the lung, and has great influence on the health of operators.

At present, two dust treatment technologies are used for treating dust generated by grinding of wind blades. Firstly, a high-negative-pressure air suction dust removal device is loaded on a grinding machine, air holes with certain sizes are uniformly formed in a grinding sheet, the air holes are connected with a high-negative-pressure pipeline through the grinding machine, part of dust generated in grinding is sucked away by high negative pressure and is filtered and separated by a filtering unit, and the method can only capture part of dust generated in the grinding position and is difficult to capture dust flying out and escaping from the periphery of the grinding sheet at high speed; the other mode is to carry out whole ventilation on the workshop and filter and intercept dust in air, although the whole dust content in the workshop can be effectively controlled by the method, the whole ventilation operation cost of the workshop for grinding the wind blades is very high due to long and narrow space of the workshop for operating the wind blades, local grinding dispersion and the need of constant temperature and constant humidity, and enterprises are difficult to bear and are difficult to popularize in the industry.

Disclosure of Invention

The technical problem solved by the invention is as follows: aiming at the problems of low efficiency and high cost of a dust removal means generated in the grinding and polishing process of the wind blade, a sectional dust removal system is provided.

The invention is realized by adopting the following technical scheme:

sectional type dust pelletizing system, including the airtight structure that removes the setting along the station of polishing, airtight structure has the segmentation and covers the collection dirt space of the station of polishing, and this collection dirt space has and only sets up respectively at the both ends of slip direction through air curtain confined opening to at the inside negative pressure space that connects collection dirt filter module that sets up in collection dirt space, the collection dirt space through can removing carries out the pertinence collection dirt to the region of polishing on the station of polishing and collects, and collection dust efficiency is high, and the energy consumption is low.

In the technical scheme of the sectional type dust removal system, furthermore, the closed structure comprises a plurality of groups of sliding frameworks and a membrane structure laid between the frameworks, the sliding frameworks and the membrane structure form a continuous arched dust collection space, the sliding frameworks are movably assembled on a track along the length direction of a grinding station, the integral structure of the arched dust collection space formed by the framework structure and the membrane structure is more portable in movement, and the plurality of groups of sliding frameworks can move relatively to facilitate folding and unfolding of the arched dust collection space.

In the technical scheme of the sectional type dust removing system, the sliding framework comprises a sliding seat and an arch frame, the sliding seat is movably assembled on rails distributed on two sides of a polishing station, a traveling device for driving the sliding seat to move on the rails is arranged on the sliding seat, the arch frame is respectively erected on the sliding seats on two sides of the polishing station to form the arch frame, and the membrane structure is laid on an arch wall which forms a dust collecting space between the arch frames.

In the technical scheme of the sectional type dust removal system, furthermore, the rails are buried guide rails, and the bottom of the arch center of the sliding framework is flush with the ground of the polishing station, so that the space formed by the membrane structure laid on the framework is tightly attached to the ground, and air leakage is reduced.

In the technical scheme of the sectional type dust removing system, further, the walking device adopts walking wheels driven by a servo motor.

In the sectional dust removal system, the film structure adopts the transparent flexible film, so that the brightness in the dust collection space is improved.

Among the above-mentioned sectional type dust pelletizing system's technical scheme, it is further, airtight structure includes three at least sliding framework of group, wherein two sets of both ends openings that are located the collection dirt space respectively, other groups are located the collection dirt space, the inboard that both ends sliding framework is close to the collection dirt space is equipped with a plurality of malleation gas pockets that form the air curtain, be equipped with a plurality of negative pressure gas pockets of connecting collection dirt filtration module on other sliding framework, the inside negative pressure that forms of collection dirt space, the air curtain that blows formation through the malleation seals space both sides, can completely cut off the inside dust escape in space, but can not influence the both ends opening that the entity that has certain weight passes through airtight structure.

In the technical scheme of the sectional type dust removal system, further, an infrared temperature probe is further arranged inside the dust collection space of the closed structure, the infrared temperature probe detects a high-temperature polishing area on the workpiece and is in feedback connection with the traveling device, the dust collection space always covers the polishing area of the workpiece, and the automatic movement of the closed structure is realized to always cover the changed polishing area.

The invention has the following beneficial effects:

1. the sectional type dust removal system is adopted to cover the polishing area of the polishing station, the distance between the sliding frameworks is adjusted by moving the sliding frameworks, dust collecting spaces with different lengths can be provided to adapt to polishing of workpieces with different sizes, the sectional type dust removal system can be combined and used as required, and the sectional type dust removal system is more flexible in applicability, can adjust the covering position of the dust collecting spaces along with polishing of different areas of the workpieces, and achieves corresponding sectional dust removal in the sectional polishing process of longer workpieces;

2. when the sectional type dust removal system is used, only a workpiece polishing area is covered, the dust removal space is more compact, other spaces of a station are not occupied, the sectional type dust removal system can be integrally pushed to one side of the polishing station when not used, all sliding frameworks are pushed together, the length of the space is reduced, and therefore the system occupies a small area in an idle state;

2. the sectional type dust removal system can completely cover a grinding area, so that dust is effectively controlled, noise generated by grinding is isolated, and influence on non-grinding stations is avoided;

3. the sectional type dust removal system can completely cover a grinding area, an internal dust collection space compactly surrounds the periphery of the workpiece grinding area, the control range of the dust collection space is smaller, and the energy consumption of the dust removal system can be reduced to be lower than 0.1% of the whole ventilation of a workshop;

4. the sectional type dust removal system can automatically adjust the trapping strategy according to the movement of the polishing position of an operator, the dust collecting space of the closed structure can automatically move along with the change of the polishing area so as to adapt to the polishing of different positions of a workpiece, the manual movement is not needed for collecting dust, and the working efficiency is improved;

5. the sectional type dust removal system disclosed by the invention can completely cover a grinding area and does not influence the constant temperature and humidity of a workshop.

In conclusion, the sectional type dust removal system can be well suitable for polishing and dust removal treatment of long and narrow workpieces such as wind blades and the like, has the advantages of flexible control, small occupied space, obvious dust removal effect and low energy consumption, and can be widely popularized and applied.

The invention is further described with reference to the following figures and detailed description.

Drawings

FIG. 1 is a top view of a segmented dusting system of an embodiment.

FIG. 2 is a front view of the sectional dust removing system in a deployed state according to the embodiment.

FIG. 3 is a front view of the sectional dust-removing system in a folded state according to the embodiment.

FIG. 4 is a schematic view of a sliding framework with positive pressure vents in an embodiment.

FIG. 5 is a schematic view of a sliding framework with negative pressure vents in an embodiment.

FIG. 6 is a partial schematic view of an air hole on the sliding framework in the embodiment.

Reference numbers in the figures: 1-wind blade, 100-dust collecting space, 2-sliding framework, 21-sliding base, 22-arch frame, 23-positive pressure air hole, 24-negative pressure air hole, 3-track, 4-ground, 5-membrane structure and 6-infrared temperature measuring probe.

Detailed Description

Examples

Referring to fig. 1-6, the sectional dust removing system is an embodiment of the present invention, the length of a wind blade production and manufacturing workshop of an enterprise is 450m, the width of the workshop is 38.5m, the height of the workshop is 14m, and the workshop is divided into 3 sections with equal distance and without obstruction: molding, polishing and spraying paint. Wherein, the section of polishing exposes in the workshop completely, is polished as required by the handheld equipment of polishing of workman, and the dust that produces of polishing escapes everywhere. The embodiment is directed at that a grinding station of the workshop is used for removing dust in the grinding process of the wind blade 1, the grinding of the wind blade 1 is mainly carried out around the wind blade, so that the grinding station of the wind blade 1 is a long station around the wind blade, the wind blade 1 is long, the wind blade 1 is also ground in a segmented mode in the grinding process according to the length direction of the wind blade 1, the segmented dust removal system of the embodiment is used for partially covering the grinding station, the dust removal system is used for covering the area, being ground, of the wind blade 1, the whole system is of a movable structure, can adapt to movement adjustment along with the movement of the grinding area, and always keeps covering the grinding area; the dust removal system can be unfolded and folded, the whole system can be moved to one side of a polishing station to be folded when the wind blade 1 is not polished, the occupied space is small, the whole dust removal system can be unfolded and moved to a polishing area when the wind blade 1 is polished, a closed dust collection space is formed by covering the polishing area, and efficient dust removal is achieved by polishing the wind blade 1.

With reference to fig. 1, 2, 4, 5, the whole sectional type dust removing system is a closed structure for dust, form dust collecting space 100 to the region of polishing through this closed structure, dust collecting space 100 of closed structure is equipped with open-ended arch passageway for both ends, the both ends opening of arch passageway is sealed through the air curtain, and set up the negative pressure space of connecting collection dirt filtration module in dust collecting space inside, the air curtain that blows formation through the malleation seals the space both ends, form the closed space to dust and external wall in the air, but the air curtain can not lead to the fact the influence of blockking to the entity that has certain weight through the space open-ended, for example, work piece and operation workman can normally pass the air curtain. The sealing structure forming the arched dust collecting space can move along one direction of the grinding station, in the embodiment, the sealing structure can move along the length direction of the wind power blade 1, the arched dust collecting space 100 is moved to the grinding area covering the wind power blade 1 on the grinding station through the movement of the sealing structure, so that all dust generated in the grinding process of the wind power blade 1 is limited in the arched dust collecting space 100, and then the dust is collected uniformly through the negative pressure space in the dust collecting space.

Referring to fig. 1 and 2 again, the closed structure forming the arch-shaped dust collecting space comprises a plurality of groups of sliding frameworks 2 and a membrane structure 5, in the embodiment, three groups of sliding frameworks 2 are adopted, the three groups of sliding frameworks 2 are arch frameworks which are arranged in parallel along the same linear direction, the membrane structure 5 is laid on the three groups of sliding frameworks 2 to form a continuous arch-shaped dust collecting space, all the sliding frameworks 2 are assembled in a moving mode along a rail 3 in the length direction of the wind power blade 1 at the polishing station, and the whole arch-shaped dust collecting space can freely move along the rail 3 in the length direction of the polishing station to remove dust in different polishing areas of the wind power blade. The membrane structure 5 is a light-transmitting flexible membrane that can accommodate relative movement between the sliding armatures 2.

With further reference to fig. 2 and 3, the sliding framework 2 in the present embodiment comprises two sliding bases 21 and an arch 22 connecting and bridging the two sliding bases 21, wherein the sliding bases 21 are movably assembled on the rails 3 at two sides of the grinding station, two ends of the arch 22 are connected to the sliding bases 21 to form a semicircular arch framework, and the membrane structure 5 is laid on the arch 22 to form a semicircular arch space. The sliding base 21 is provided with a traveling device for driving the sliding base to move on the rail 3, the traveling device can adopt a traveling wheel driven by a servo motor, and particularly can refer to a traveling device for hoisting a traveling crane, and all the sliding frameworks 2 are driven by the traveling device to move horizontally along the rail 3 to drive the whole arched dust collecting space to move on a grinding station.

The sliding framework 2 of the whole system moves to unfold the membrane structure 5 as shown in figure 2 to form a dust collecting space covering a polishing area, and then all the sliding frameworks 2 are moved to carry out the whole process on the whole dust collecting space; after the sliding framework 2 of the whole system moves together, as shown in fig. 3, the membrane structure 5 is folded together, the space of the whole system is compressed, and the whole system moves to one side of the grinding station to be collected.

The rail 3 of the embodiment adopts an underground guide rail, namely the rail 3 is arranged in a trench lower than the ground 4, the sliding seat 21 is assembled on the rail 3 and still positioned in the trench, and the joint of the bottom of the arch 22 and the sliding seat 21 is flush with the ground of the grinding station, so that the arch wall formed by the membrane structure 5 can extend to the ground, and the dust escape caused by the formation of a large gap between the arch dust collecting space and the ground is avoided.

Referring to fig. 4, 5 and 6 in combination, the present embodiment is divided into A, B, C three groups of sliding frameworks 2, wherein the sliding frameworks of group a and the sliding frameworks of group C are respectively located at two end openings of the dust collecting space, the sliding frameworks of group B are located in the dust collecting space, a plurality of positive pressure air holes 23 for forming air curtains are arranged at the inner sides of the arches 22 of the sliding frameworks of group a and the sliding frameworks of group C near the dust collecting space, the positive pressure air holes 23 are connected with a fresh air system of a workshop through pipelines, and clean air is blown from the inside of the positive pressure air holes 23 to the outside to form the air curtains, as shown in fig. The arch 22 of the sliding framework in the group B is provided with a plurality of negative pressure air holes 24 connected with the dust collecting and filtering module, the negative pressure air holes 24 are connected with a negative pressure fan of the dust collecting and filtering module through pipelines, the generated negative pressure sucks and traps the dust airflow in the dust collecting space, and particularly as shown in figure 5, the airflow blown out by the positive pressure air holes 23 can supplement the air in the space. The positive pressure air holes 23 and the negative pressure air holes 24 may be directly provided on the arch 22 having a hollow structure, as shown in fig. 6, or a pipeline having air holes may be fixedly laid on the surface of the arch 22.

In practical application, more than three groups of sliding frameworks can be arranged to improve the coverage area of the polishing area, only positive pressure air holes 23 are required to be arranged on the arches of the sliding frameworks 2 at the outermost two ends, and negative pressure air holes 24 are arranged on the arches of the rest sliding frameworks 2.

The sectional type dust removal system of this embodiment can adjust the position in dust collection space or expand and fold up whole system through the manual work removal slip skeleton 2, also can be through the running gear servo motor electric control who controls walking skeleton 2. In order to automatically adapt to the sectional moving grinding of the wind blade 1, referring to fig. 1 again, an infrared temperature probe 6 facing the inside of the dust collecting space is further arranged on an arch center of the group B sliding framework 2 positioned in the dust collecting space, because high temperature can be generated at the grinding position when the workpiece is ground, the infrared temperature probe 6 always detects the high-temperature grinding area of the workpiece at the grinding station, when the high-temperature grinding area is detected to move, a signal is sent back to all sliding framework traveling devices of the whole system, the whole dust removing system is controlled to move along with the change of the grinding position, and the dust collecting space always covers the grinding area of the workpiece. The walking device can be controlled by detecting temperature signals through the temperature detection sensor and transmitting the signals to the feedback control device through the existing automatic control programming, and the specific software program is not repeated in the embodiment.

In practical application, the arch frame can be made of light aluminum alloy, the overall structure is lighter, the energy consumption of the walking device drive is reduced, and supporting facilities related to operation are arranged on the arch frame formed by the sliding frame, including but not limited to a power supply, positive (negative) pressure air (other) air, emergency alarm, illumination, voice communication, video communication, infrared scanning, positioning and the like.

The following describes a specific operation of the present embodiment.

When the wind blade 1 is hoisted to reach a polishing station, the folded dust removal system is unfolded, then the wind blade is integrally moved to an initial polishing position, the initial polishing position is covered, then a gas path connected with a positive pressure gas hole and a negative pressure gas hole in the dust removal system is opened, and polishing can be started after a closed dust collection space is formed. The collection dirt space that slip skeleton 2 and membrane structure 5 formed covers the space of polishing regional simultaneously of leaving the space that supplies the workman to operate on every side, the workman passes the air curtain at collection dirt space both ends and gets into collection dirt space inside and begin to polish wind-force blade 1, wind-force blade 1 polishes the dust that produces and all concentrates on collection dirt space inside, inside by the air curtain separation at collection dirt space, the negative pressure of the inside air negative pressure gas pocket of collection dirt passageway of polishing drives down, will polish the same collection dirt filter module in workshop of collection of the dust that produces inside. After finishing polishing one section of fan blade, when moving to the next section and polishing, the infrared temperature probe 6 in the dust removal system detects the movement of the polishing high-temperature area, and the feedback signal controls the whole dust removal system to move the polishing area so as to adapt. The embodiment aims at the characteristics of the grinding operation of the wind blade, not only can completely collect dust generated in the grinding process, but also can reduce the energy consumption of system operation to within 1% of the overall ventilation of a workshop.

After polishing, all sliding frameworks 2 of the dust removal system are moved together to be folded, and then are integrally moved to one side of a polishing station, so that the polished wind blade can be hoisted, and the space of the polishing station cannot be occupied.

The foregoing embodiments illustrate the principles and features of the present invention and their advantages, and it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the specific principles of operation of the present invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (8)

1. Sectional type dust pelletizing system, its characterized in that: including the airtight structure that removes the setting along the station of polishing, airtight structure has the segmentation and covers the collection dirt space of the station of polishing, and this collection dirt space has and only sets up respectively at the both ends of slip direction through air curtain confined opening to at the inside negative pressure space of connecting collection dirt filtration module that sets up of collection dirt space.

2. The segmented dust extraction system of claim 1, the containment structure comprising a plurality of sets of sliding armatures and a membrane structure laid between the armatures, the sliding armatures and membrane structure forming a continuous arched dust collecting space, the sliding armatures being movably mounted on rails along the length of the sanding station.

3. The segmented dust removal system according to claim 2, wherein the sliding framework comprises a sliding base and an arch, the sliding base is movably assembled on rails distributed on two sides of the grinding station, the sliding base is provided with a walking device for driving the sliding base to move on the rails, the arch is respectively erected on the sliding base on two sides of the grinding station to form arch frameworks, and the membrane structure is laid on arch walls forming dust collecting spaces among the arch frameworks.

4. The segmented dust extraction system of claim 3, wherein the rail is an underground guide rail, and the arch bottom of the sliding framework is flush with the ground of the grinding station.

5. The segmented dust extraction system of claim 3, the running gear employing a servo motor driven running wheel.

6. The segmented dusting system of any of claims 2-5, the film structure employing a light transmissive flexible film.

7. The segmented dust removal system according to claim 2, wherein the sealing structure comprises at least three sets of sliding frames, two sets of sliding frames are respectively located at two ends of the dust collecting space and the other sets are located in the dust collecting space, the sliding frames at two ends are provided with a plurality of positive pressure air holes for forming air curtains near the inner side of the dust collecting space, and the other sliding frames are provided with a plurality of negative pressure air holes for connecting the dust collecting and filtering module.

8. The segmented dust removal system according to claim 3, wherein an infrared temperature probe is further arranged in the dust collection space of the closed structure, the infrared temperature probe detects a high-temperature polishing area on the workpiece and is in feedback connection with the traveling device, and the dust collection space always covers the polishing area of the workpiece.

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