CN211647423U

CN211647423U - Building steel structure ash removal device capable of stably sliding

Info

Publication number: CN211647423U
Application number: CN201921773956.XU
Authority: CN
Inventors: 刘智勇; 徐旭; 彭影星; 郑超; 马怀章; 彭浩; 沈兴东
Original assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Current assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-10-09
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a building steel structure dust cleaning device capable of stably sliding, which comprises a dust cleaning box body, a hanging component, a dust cleaning component and a sliding component; the section of the ash removal box body is semicircular and annular, the ash removal box body is placed on a steel structural component, and a high-pressure gas inlet and a low-pressure gas outlet are formed in the ash removal box body; the hanging component is used for hanging the ash removal box body and dragging the ash removal box body to move on the surface of the steel structural component; the dust removal assembly is communicated with the low-pressure gas outlet, and the sliding assembly is fixedly connected with the ash removal box body and comprises a rolling device in sliding contact with the steel structure component; the ash removal box body provides high-pressure blowing air through a high-pressure air inlet, dust on the steel structural component enters the dust removal assembly through a low-pressure air outlet, and the dust removal assembly slides on the steel structural component to remove ash under the action of the sliding assembly. Deashing device can adapt to big layer height, large-span steel structural component well and carry out the deashing and remove dust, and can prevent the dust loss of deashing in-process.

Description

Building steel structure ash removal device capable of stably sliding

Technical Field

The utility model belongs to instrument for the construction, concretely relates to can stably slide construction steel construction ash removal device.

Background

In the modern building sector, steel-structure buildings are an important type of building. The structural steel part for construction can provide an ultra-high project construction speed and excellent construction quality in the form of a preform. At present, large and medium-sized building projects such as gymnasiums, stations, airports, convention and exhibition centers and the like are more and more prone to adopt steel structure main bodies. Such buildings typically have large story heights and spans and are typically open or semi-open structures, for example, stadiums are typically semi-open structures having only one ceiling and one side wall. In areas with serious atmospheric pollution such as haze and the like, dust in the air is very easy to deposit and gather on the steel structure main body. At present, there is no effective treatment method for dust deposited on the steel structural body, and at the same time, the deposited dust is generally not treated in consideration of the scale of such buildings.

Due to structural stability and corrosion resistance requirements, typical steel structural components are subjected to both refractory and corrosion resistant treatments, such as coating treatments, either during prefabrication or after assembly. Therefore, dust accumulation does not generally have a significant effect on the stability or corrosion resistance of the steel structural body. This is also the main reason why there is currently a low concern for such ash deposition.

However, in reality, not only particulate dust is deposited on the steel structural body. In spring, most areas of China have the problem of pollution of poplar catkins and willow catkins; dust on the steel structure main body is accumulated and retained for a long time and is often adsorbed with more pollutants such as organic matters, aerosol and the like, so that the capturing and fixing capacity of the dust on poplar catkins and willow catkins is improved; thus, in reality, the contaminants deposited on the steel structural body are usually a mixture of particulate dust and floe. The poplar catkin and the willow catkin are both extremely inflammable materials, and serious fire-fighting hidden danger is easily caused by a large amount of gathered catkins on the building main body.

On the other hand, in a stadium, a station, an airport, and the like, which are generally places where people gather, when dust is deposited in a large amount and is not treated all the time, the deposition of the dust on falling off reaches a dynamic balance, and for example, sound waves such as shouting sound during watching a match, sound of a train entering or exiting the station, sound of a siren, and sound of a plane taking off and landing easily cause vibration of the dust which has been gathered in a large amount and then partially falls off. Such falling off of dust is unexpected and causes pollution of the air environment inside the site; in addition, due to long-term retention of the dust, a large amount of harmful gas or heavy metal pollutants are usually adsorbed, and the dust can cause more harm to human bodies than conventional dust or haze particles.

Based on at least the above two practical problems, it is necessary to develop a device capable of effectively removing the deposited dust on the steel structure main body, and simultaneously, the daily operation of the steel structure building is not affected, for example, the normal operation of the station, the airport and other facilities is not affected in the dust removing process. At present, large-scale steel structure building projects all adopt cylindric steel structural component, and this type of cylindric steel structural component can't provide effectual support and fixed to conventional dust collector.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a construction steel structure ash removal device which can stably slide against the defects of the prior art; the utility model discloses an ash removal device uses compressed gas to sweep the dust of deposit in the steel construction main part, generally, to steel structural component's before the installation dust removal and cleanness, for example apply paint fire-retardant coating before the clearance process of rust, dust, because steel structural component is not assembled yet this moment, and place the earth's surface usually, its clean dust removal is easier, and the deashing mode of selectable is also more. For example, water rinsing, brushing, high frequency rapping (e.g., ultrasonic rapping), and the like may be employed. However, the cleaning object aimed by the utility model is a steel structure main body which is assembled and constructed, but not a single steel structure component, the suspension height of the cleaning object is large, and the construction is difficult; just the utility model discloses still expect to reach the effect that does not influence the normal operation of building function. On the preset premise, the water washing, the brushing and the high-frequency rapping cannot be effectively applied, for example, the water washing can generate a large amount of muddy water, the muddy water generated at the top of the steel structure building is difficult to effectively collect, the environment in the steel structure building can be seriously polluted, even muddy water rain can be formed in the steel structure building, the normal operation of the functions of the steel structure building is influenced, and the cleaned scale is very easy to remain on the surface of the steel structure main body; the construction space of the steel structure main body is limited, so that the requirement of the brushing process cannot be met generally; the ultrasonic vibration can effectively vibrate rust, dust and the like away from the surface of the steel structure component; the vibration is transmitted along the steel structure main body, so that the dust on the surface of the large-area steel structure main body falls off at the same time; the large-area dust falling off at the same time is difficult to be effectively collected, so the dust can be scattered indoors of a steel structure building to cause indoor pollution; in addition, vibrations generated by rapping risk loosening the connections between the steel structural members and are therefore not suitable for use.

For realize that aforementioned compressed gas sweeps and to sweeping the high dirty gaseous effective collection who produces, the architectural steel structure ash removal device that can stably coast who provides mainly includes following subassembly:

the technical scheme is as follows: the utility model relates to a building steel structure dust removal device capable of stably sliding, which comprises a dust removal box body, a hanging component, a dust removal component and a sliding component; the section of the ash removal box body is semicircular and annular, the ash removal box body is placed on a steel structural component, and a high-pressure gas inlet and a low-pressure gas outlet are formed in the ash removal box body; the hanging component is used for hanging the ash removal box body and dragging the ash removal box body to move on the surface of the steel structural component; the dust removal assembly is communicated with the low-pressure gas outlet, and the sliding assembly is fixedly connected with the ash removal box body and comprises a rolling device in sliding contact with the steel structure component; the ash removal box body provides high-pressure blowing air through a high-pressure air inlet, dust on the steel structural component enters the dust removal assembly through a low-pressure air outlet, and the dust removal assembly slides on the steel structural component to remove ash under the action of the sliding assembly.

Preferably, the inside of the ash removal box body comprises a high-pressure cavity and a low-pressure cavity, the high-pressure cavity is provided with a closed upper surface and a closed lower surface, the high-pressure gas inlet is formed in the upper surface of the high-pressure cavity, the low-pressure cavity of the high-pressure cavity is provided with a closed upper surface and a central open lower surface, the low-pressure gas outlet is formed in the upper surface of the low-pressure cavity, the lower surface of the high-pressure cavity is provided with a nozzle which is communicated with the low-pressure cavity through the nozzle, high-pressure purge gas enters the high-pressure cavity from the high-pressure gas inlet and leaves the high-pressure cavity from the nozzle, and is directly sprayed on the dust surface of the steel structure component and enters the low-pressure cavity to be sucked out from the low.

Preferably, the included angle between the spraying direction of the nozzle and the axis of the steel structural component is not more than 30 degrees, the spraying direction is opposite to the moving direction of the ash removal box body, and a gap exists between the lowest end of the nozzle and the dust surface of the steel structural component.

Preferably, the gap is formed by respectively arranging a protruding part on the inner side of the lower surface of the low-pressure cavity, the protruding parts are in contact with the steel structural component, the protruding parts extend along the axial direction of the ash removal box body, and sealing strips are arranged at the lower ends of the protruding parts and the end plate of the ash removal box body opposite to the nozzle.

Preferably, the sliding assembly comprises a half ring pipe and two 1/4 ring pipes, wherein a first power air interface is arranged on the outer side of the middle part of the half ring pipe, a second power air interface is respectively arranged on the outer sides of two end parts of the half ring pipe, the two 1/4 ring pipes are respectively inserted into the half ring pipe in a sliding manner from two ends of the half ring pipe, a first sealing ring is fixedly arranged on the outer ring of the insertion end of the 1/4 ring pipe, and the first sealing ring is in contact with the inner wall of the half ring pipe and can realize sliding airtight sealing; second sealing rings are fixedly arranged in the two ends of the semi-ring pipe, the second sealing rings are in contact with the outer wall of the 1/4 ring pipe and can realize sliding airtight sealing, the insertion end of the 1/4 ring pipe is of a sealing structure, the insertion ends of the two 1/4 ring pipes cannot be in contact, a first power cavity is formed in the semi-ring pipe between the two first sealing rings, the first power is communicated with the first power gas interface in a gas mode, a second power cavity is formed between the semi-ring pipe and the outer coin of the 1/4 ring pipe, and the second power cavity is communicated with the second power gas interface in a gas mode; and each of the first power air interface and the second power air interface is respectively communicated with a high-pressure power air source and an atmospheric environment through a valve component.

Preferably, the inner ring of the semi-ring pipe is fixedly connected with a semi-ring bearing through a connecting plate, the inner ring of the semi-ring bearing is provided with a plurality of balls in rolling contact with the surface of the steel structural component, and the unexpended ends of the 1/4 ring pipe are respectively sleeved with a ball frame.

Preferably, the ball frame comprises a sleeving section and a ball section, one end of the sleeving section is provided with a sleeving hole for sleeving the 1/4 circular tube, the other end of the sleeving section is provided with a sliding groove for sleeving the ball section, one end of the ball section sleeved with the sliding groove is provided with a groove, the other end of the ball section is clamped with a ball in rolling contact with the steel structure component, the sliding groove is connected with the bottom end of the groove through a spring, and the sleeving end parts of the sleeving section and the ball section are respectively provided with a convex block.

Preferably, the semi-circular pipe is arranged in the low-pressure cavity, the bottom end surface of the low-pressure cavity is respectively provided with a round hole, two ends of the semi-circular pipe are respectively welded and fixed at the round holes on the bottom end surface of the low-pressure cavity, the first power air interface extends out of the upper surface of the ash removal box body and is welded and fixed with the ash removal box body, and the second power air interface extends out of two sides of the lower part of the ash removal box body and is welded and fixed with the ash removal box body; the non-inserted end of the 1/4 ring pipe and the ball frame are positioned outside the ash removal box body.

Preferably, the dust removal assembly comprises a main body shell, the main body shell is respectively provided with an air inlet and an air outlet, the air inlet is communicated with the low-pressure air outlet through a hose passage, and a pre-filtering element and a fine-filtering element are sequentially and vertically arranged in the main body shell close to the air inlet; the utility model discloses a filter element, including main body shell, prefilter element, at least one main body shell, at least one prefilter element, at least one rotatable scraper blade, the scraper blade is located the air inlet side, be provided with the motor between prefilter element and the smart filter element, the drive shaft of motor passes prefilter element drive scraper blade rotation, smart filter element is removable to be inserted in the main body, the bottom of main body shell is equipped with the dust collection box that communicates prefilter element upstream space, the dust collection box.

Preferably, the high-pressure air supply device further comprises power air, the high-pressure blowing air and the power air are provided by an air bottle or a first fan, the low pressure in the low-pressure cavity is provided by a second fan, and the second fan is connected between a low-pressure air outlet and an air inlet; or the low-pressure air outlet is directly communicated with the air inlet, the air outlet is communicated with the air suction port of the third fan, and the high-pressure air inlet is communicated with the air outlet of the third fan.

Has the advantages that: (1) the utility model discloses a setting up the deashing box similar with steel structural component cross-section, sliding the deashing box at steel structural component through the slip subassembly deashing, can adapt to the large floor height well, the large-span steel structural component carries out the deashing and removes dust, and can construct and prevent the dust loss in the deashing process, therefore can not influence the performance of steel structural building daily function, can carry out the deashing and remove dust when steel structural building normally operates promptly;

(2) the utility model is provided with a telescopic semi-annular hoop sliding device which is in a semi-annular state when not in use, so that the ash removal box body is allowed to be arranged on the surface of the cylindrical steel structural component or removed from the cylindrical steel structural component; when the dust removal box is used, the dust removal box is in a complete circular ring shape, and is in sliding contact with the surface of the steel structural component by means of a plurality of balls, the dust removal box can be reliably supported and fixed, the dust removal box is prevented from accidentally falling off from the steel structural component, and the dust removal box slides on the surface of the steel structural component through the balls, so that the fireproof coating on the surface of the dust removal box can not be scratched.

Drawings

FIG. 1 is an overall schematic view of one of the gas paths of the ash removal device of the present invention;

FIG. 2 is an overall schematic view of another gas circuit design of the ash removal device of the present invention;

FIG. 3 is a schematic structural view of the ash removal box of the present invention;

FIG. 4 is a schematic view of the gas path of the axial section of the ash removal box of the present invention;

FIG. 5 is a schematic perspective view of the high pressure chamber and the protrusion of the present invention;

FIG. 6 is an enlarged partial view of the circle B in FIG. 5;

FIG. 7 is a schematic view of the protrusion and the sealing strip of the present invention;

FIG. 8 is a schematic view of the installation of the sliding assembly inside the ash removal tank;

FIG. 9 is a schematic view of the gas configuration outside the ash removal tank with the sliding assembly;

FIG. 10 is a schematic view of the structure of the sliding assembly;

FIG. 11 is an axial cross-sectional view of the ball cage;

FIG. 12 is a schematic view of the bottom of the ash removal tank;

FIG. 13 is a schematic perspective view of the high pressure chamber, low pressure chamber and slit nozzle of the present invention;

fig. 14 is a schematic view of a dust removal assembly of the present invention;

FIG. 15 is a cross-sectional view of section A-A in FIG. 1.

In the figure, 1-steel structural component, 2-ash removing box body, 21-high pressure gas inlet, 22-high pressure cavity, 221-gap, 23-nozzle, 24-low pressure cavity, 241-protrusion, 242-sealing strip, 25-low pressure gas outlet, 26-round hole, 27-lifting lug, 3-first fan, 4-second fan, 5-dust removing component, 51-air inlet, 52-air outlet, 53-prefilter element, 54-fine filter element, 55-scraper, 56-motor, 57-dust collecting box, 58-power supply, 59-walking device, 6-third fan, 7-sliding component, 71-semi-ring pipe, 711-first power gas interface, 712-first power cavity, 713-second power gas interface, 714-second power cavity, 72-1/4 collar, 73-first sealing ring, 74-second sealing ring, 75-ball frame, 751-socket section, 752-socket hole, 753-ball section, 754-chute, 755-groove, 756-spring, 757-bump, 76-connecting plate, 77-semi-ring bearing, 78-ball.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1: referring to fig. 1 and 3-14, the ash removing device for the construction steel structure capable of stably sliding comprises the following components: the ash removal box body 2 is provided with a semicircular annular section and is used for covering at least the upper half surface of the steel structure component 1, the ash removal box body 2 is provided with a high-pressure gas inlet 21 for supplying high-pressure purge gas to the ash removal box body 2, and the ash removal box body 2 is also provided with a low-pressure gas outlet 25 for sucking high-dust-containing gas generated by purging out of the ash removal box body 2; the hanging component is used for hanging the ash removal box body 2 and dragging the ash removal box body to move on the surface of the steel structural component 1, and the hanging component comprises a lifting lug 27 arranged on the outer surface of the ash removal box body 2; the dust removal assembly 5 is communicated with the low-pressure gas outlet 25 and is used for trapping and separating impurities such as dust, floccules and the like in the high-dust-content gas; the ash cleaning device is characterized by further comprising a sliding assembly 7, wherein the sliding assembly 7 is fixedly connected with the ash cleaning box body 2 and comprises a plurality of balls 78 in sliding contact with the steel structure component 1, so that the ash cleaning box body 2 can freely slide along the axial direction of the steel structure component 1.

The inside of the ash cleaning box body 2 comprises a high-pressure cavity 22 and a low-pressure cavity 24; the high pressure purge gas enters the high pressure chamber 22 from the high pressure gas inlet 21 and exits the high pressure chamber 22 from the nozzle 23 and enters the low pressure chamber 24; the high pressure chamber 22 has a closed upper surface and a lower floor; the low-pressure chamber 24 has a closed upper surface and a centrally open lower surface, so that high-pressure purge gas injected into the low-pressure chamber 24 can be directly injected to act on the dust deposition surface of the steel structural member 1; the nozzle 23 may be an array of orifices or may be a slit-like opening tapering from upstream to downstream of the high pressure chamber 22 as shown in the drawings of the present application; the included angle between the spraying direction of the nozzle 23 and the axis of the steel structure component 1 is preferably less than or equal to 30 degrees, and the spraying direction is opposite to the moving direction of the ash removal box body 2; the lowest end of the nozzle 23 has a gap 221 with the surface of the steel structural body, so that the lower bottom surface of the high-pressure cavity 22 is not in contact with the surface of the steel structural body 1; the dust on the surface of the steel structure body 1 can enter the low-pressure cavity 24 from the gap 221 in the moving process of the dust cleaning box body 2 and is blown off from the surface of the steel structure component 1 by high-pressure blowing gas sprayed by the nozzle 23; in addition, the presence of the gap 221 allows the ash removal tank 2 not to scrape the ash deposits on the surface thereof during the sliding in the axial direction of the steel structural member 1, and all of the ash deposits are blown off by the high-pressure purge gas and sucked out from the low-pressure gas outlet 25 without falling to the outside. When the high-pressure purge gas is sprayed out from the nozzle 23, jet negative pressure is formed at the gap 221, so that external air enters the low-pressure cavity 24 from the gap 221 under the action of the jet negative pressure, and the high-dust-content gas can be effectively prevented from escaping from the gap 221.

The gap 221 is realized by that a projection 241 is respectively arranged at the inner side of the lower surface of the low pressure cavity 24, the projection 241 is contacted with the steel structural component 1, and the ash cleaning box body 2 is erected on the ash deposition surface of the steel structural component 1 by means of the projection 241; preferably, the protruding portions 241 extend along the axial direction of the ash removal box body 2, and the inner edges of the bottom surfaces of the ash removal box body 2 at two sides of the steel structural component 1 are respectively provided with one protruding portion 241; the width of the protrusion 241 is d.

Further, in order to prevent the outside air from entering the low pressure chamber 24 and increase the negative pressure suction load, a seal 242 is provided at least at the two protrusions 241 on the bottom surface of the ash removal tank 2 and at the lower end of the end plate of the ash removal tank 2 opposite to the nozzle 23.

As shown in fig. 10, the sliding assembly 7 comprises a half collar 71, two 1/4 collars 72; a first power air interface 711 is arranged on the outer side of the middle part of the semi-ring pipe 71; the outer sides of two end parts of the semi-ring pipe 71 are respectively provided with a second power air interface 713; the two 1/4 ring pipes 72 are slidably inserted into the half ring pipe 71 from two ends of the half ring pipe 71; a first sealing ring 73 is fixedly arranged on the outer ring of the insertion ends of the two 1/4 ring pipes 72, the first sealing ring 73 is in contact with the inner wall of the half ring pipe 71 and can realize sliding airtight sealing; the inner walls of the two ends of the semi-ring pipe 71 are fixedly provided with second sealing rings 74; the second sealing ring 74 is in contact with the outer wall of the 1/4 collar 72 and is capable of achieving a sliding airtight seal; the 1/4 ring pipe 72 is sealed at the inserting end, the two 1/4 ring pipes 72 can not be contacted at the inserting end, so that a first power cavity 712 is formed at the half ring pipe 71 between the two first sealing rings 73; the first power cavity 712 is in gaseous communication with the first power gas port 711; the first and second sealing rings are sized such that a second power cavity 714 is formed between the inner wall of the half collar 71 and the outer wall of the 1/4 collar 72; the second power chamber 714 is in gaseous communication with a second power gas interface 713.

Each of the first power air interface and the second power air interface is respectively communicated with a high-pressure power air source and an atmospheric environment through a valve component; when the valve member is adjusted to enable the first power cavity 712 to be communicated with a high-pressure power air source and the second power cavity 714 to be communicated with the atmospheric environment, the high-pressure power air enters the first power cavity 712 and drives the 1/4 ring pipe 72 to slide in the direction of separating from the semi-ring pipe 71, so that a complete ring for hooping the whole steel structure component 1 is formed by the 1/4 ring pipe and the semi-ring pipe 71; at this time, good support and fixation of the ash removal box body 2 can be provided; on the contrary, when the valve member is adjusted, the second power cavity 714 is communicated with the high-pressure power air source, and the first power cavity 712 is communicated with the atmospheric environment, the high-pressure power air enters the second power cavity 714, and the 1/4 circular pipe 72 slides in the direction of inserting into the half circular pipe 71, so that a semi-circular ring which only embraces the upper part of the steel structure component 1 is formed; at this time, the ash removal tank 2 is allowed to be detached from the steel structural member 1.

To facilitate the sliding of the ash removal box 2 on the surface of the steel structural member 1 without scratching the fireproof coating on the surface of the steel structural member 1. The inner ring of the semi-ring pipe 71 is fixedly connected with a semi-ring bearing 77 through a connecting plate 76; the inner ring of the semi-ring bearing 77 is provided with a plurality of balls 78 which are in rolling contact with the surface of the steel structural component 1; the 1/4 ring pipe 72 is sleeved with a ball rack 75 at the non-inserted section; the ball frame 75 comprises a socket joint section 751 and a ball section 753; one end of the sleeving section 751 is provided with a sleeving hole 752 for sleeving the 1/4 ring pipe 72, and the other end is provided with a sliding groove 754 for sleeving the ball section 753; a groove 755 is arranged at one end of the ball section 753 sleeved with the chute 754; the other end is clamped with a ball 78 which is in rolling contact with the steel structure component 1; the bottoms of the sliding groove 754 and the groove 755 are respectively contacted with the two ends of the spring 756, so that the ball frame 75 can be deformed in a telescopic way within a certain range; the extrusion force on the lower half part of the steel structure component 1 is further improved, so that the support on the ash removal box body 2 is more stable; at the same time, when the 1/4 collar 72 is retracted, the ash removal bin 2 is easily disengaged from the steel structural member 1. In order to prevent the socket joint section 751 and the ball section 753 from being accidentally separated, the socket joint ends of the socket joint section 751 and the ball section 753 are respectively provided with a projection 757.

The half-ring pipe 71 is arranged in the low-pressure cavity 24, two ends of the half-ring pipe are respectively welded and fixed at the round hole 26 on the bottom end face of the low-pressure cavity 24, and the first power air interface 711 extends out of the upper surface of the ash removal box body 2 and is welded and fixed with the ash removal box body; the second power air interface 713 extends out of two sides of the lower part of the ash removal box in half and is welded and fixed with the ash removal box; the non-inserted end of the 1/4 collar and the ball holder 75 are both located outside the ash removal box 2.

The dust removing assembly 5 comprises a main body, wherein an air inlet 51 and an air outlet 52 are respectively arranged on the main body, and the air inlet 51 is communicated with the low-pressure air outlet 25; a pre-filtering element 53 and a fine filtering element 54 are vertically arranged in the main body in sequence; the pre-filter element 53 is preferably a rigid element, such as a micro-porous sieve plate; the upstream surface of the pre-filter element 53 is provided with at least one rotatable scraper 55; the scraper 55 is driven by a motor 56 provided between the pre-filter element 53 and the fine filter element 54; the fine filter element 54 is inserted into the main body in a withdrawable manner, so that convenient replacement can be realized; the bottom of the main body is provided with a dust box 57 communicated with the upstream space of the pre-filtering element 53; the dust box 57 is preferably a drawer-like structure; the body also includes a power source 58 and a walking device 59 disposed at the bottom thereof.

The aforementioned high-pressure purge gas may be supplied by a gas cylinder or by the first fan 3; the low pressure in the low pressure chamber 24 may be provided by a second fan 4, the second fan 4 being connected between the low pressure gas outlet 25 and the gas inlet 51, the second fan 4 being a vacuum pump.

The utility model discloses well hanging the subassembly is not the core content of present case, can use any hanging mode common in this field, for example connect the lug through wire rope, pull the deashing box by artifical or auxiliary power equipment in artifical platform formula migration again, no longer specifically describe here.

Example 2: referring to fig. 2-14, in the ash removing device for building steel structure capable of sliding stably, the low pressure air outlet 25 in this embodiment is directly communicated with the air inlet 51, the air outlet 52 is communicated with the air suction inlet of the third fan 6, the high pressure air inlet 21 is communicated with the air outlet of the third fan 6, and other components in this embodiment are the same as those in embodiment 1 and will not be described again.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A building steel structure dust cleaning device capable of stably sliding is characterized by comprising a dust cleaning box body, a hanging assembly, a dust cleaning assembly and a sliding assembly; the section of the ash removal box body is semicircular and annular, the ash removal box body is placed on a steel structural component, and a high-pressure gas inlet and a low-pressure gas outlet are formed in the ash removal box body; the hanging component is used for hanging the ash removal box body and dragging the ash removal box body to move on the surface of the steel structural component; the dust removal assembly is communicated with the low-pressure gas outlet, and the sliding assembly is fixedly connected with the ash removal box body and comprises a rolling device in sliding contact with the steel structure component; the ash removal box body provides high-pressure blowing air through a high-pressure air inlet, dust on the steel structural component enters the dust removal assembly through a low-pressure air outlet, and the dust removal assembly slides on the steel structural component to remove ash under the action of the sliding assembly.

2. The stably slidable ash removal device for construction steel structures as claimed in claim 1, wherein the interior of the ash removal box body comprises a high pressure chamber and a low pressure chamber, the high pressure chamber is provided with a closed upper surface and a closed lower surface, the high pressure gas inlet is arranged on the upper surface of the high pressure chamber, the low pressure chamber of the high pressure chamber is provided with a closed upper surface and a centrally open lower surface, the low pressure gas outlet is arranged on the upper surface of the low pressure chamber, the lower surface of the high pressure chamber is provided with a nozzle which is communicated with the low pressure chamber through the nozzle, and high pressure purge gas enters the high pressure chamber from the high pressure gas inlet and leaves the high pressure chamber from the nozzle, directly sprays on the dust surface of the steel structure component and enters the low pressure chamber, and is sucked out from the low pressure gas outlet.

3. The stably slidable deashing device for building steel structures as claimed in claim 2, wherein the included angle between the spraying direction of the nozzle and the axis of the steel structure component is not more than 30 degrees, the spraying direction is opposite to the moving direction of the deashing box body, and a gap exists between the lowest end of the nozzle and the dust surface of the steel structure component.

4. The stably slidable deashing device for construction steel structures as claimed in claim 3, wherein the gap is formed by providing a protrusion on the inner side of the lower surface of the low pressure chamber, the protrusion contacting with the steel structure member, the protrusion extending along the axial direction of the deashing tank, and the protrusion and the lower end of the end plate of the deashing tank opposite to the nozzle are provided with sealing strips.

5. The ash removal device for the building steel structure capable of stably sliding according to claim 2, wherein the sliding assembly comprises a semi-circular pipe and two 1/4 circular pipes, a first power air interface is arranged on the outer side of the middle part of the semi-circular pipe, a second power air interface is respectively arranged on the outer sides of two end parts of the semi-circular pipe, the two 1/4 circular pipes are respectively inserted into the semi-circular pipe in a sliding manner from two ends of the semi-circular pipe, a first sealing ring is fixedly arranged on the outer ring of the insertion end of the two 1/4 circular pipes, and the first sealing ring is in contact with the inner wall of the semi-circular pipe and can realize sliding airtight sealing; second sealing rings are fixedly arranged in the two ends of the semi-ring pipe, the second sealing rings are in contact with the outer wall of the 1/4 ring pipe and can realize sliding airtight sealing, the insertion end of the 1/4 ring pipe is of a sealing structure, the insertion ends of the two 1/4 ring pipes cannot be in contact, a first power cavity is formed in the semi-ring pipe between the two first sealing rings, the first power is communicated with the first power gas interface in a gas mode, a second power cavity is formed between the semi-ring pipe and the outer coin of the 1/4 ring pipe, and the second power cavity is communicated with the second power gas interface in a gas mode; and each of the first power air interface and the second power air interface is respectively communicated with a high-pressure power air source and an atmospheric environment through a valve component.

6. The ash removal device for steel structures of buildings, which can stably slide according to claim 5, wherein the inner ring of the semi-ring pipe is fixedly connected with a semi-ring bearing through a connecting plate, the inner ring of the semi-ring bearing is provided with a plurality of balls which are in rolling contact with the surface of a steel structure component, and the non-inserted ends of the 1/4 ring pipe are respectively sleeved with a ball frame.

7. The ash removal device for the steel construction of building capable of stably sliding according to claim 6, wherein the ball frame comprises a sleeve section and a ball section, one end of the sleeve section is provided with a sleeve hole for sleeve connection with the 1/4 circular pipe, the other end of the sleeve section is provided with a sliding groove for sleeve connection with the ball section, one end of the ball section sleeved with the sliding groove is provided with a groove, the other end of the ball section is clamped with a ball in rolling contact with the steel structural component, the sliding groove is connected with the bottom end of the groove through a spring, and the sleeve section and the sleeve end of the ball section are respectively provided with a projection.

8. The stably slidable ash removal device for construction steel structures as claimed in claim 7, wherein the semi-circular pipe is disposed in a low pressure chamber, the bottom end surface of the low pressure chamber is respectively provided with a circular hole, two ends of the semi-circular pipe are respectively welded and fixed to the circular holes on the bottom end surface of the low pressure chamber, the first power gas port extends out of the upper surface of the ash removal box body and is welded and fixed thereto, and the second power gas port extends out of two sides of the lower portion of the ash removal box body and is welded and fixed thereto; the non-inserted end of the 1/4 ring pipe and the ball frame are positioned outside the ash removal box body.

9. The stably slidable ash removal device for the steel structure of the building, as claimed in claim 5, wherein the dust removal assembly comprises a main housing, the main housing is provided with an air inlet and an air outlet respectively, the air inlet is communicated with the low-pressure air outlet through a hose line, and a pre-filtering element and a fine filtering element are vertically arranged in the main housing in sequence near the air inlet; the utility model discloses a filter element, including main body shell, prefilter element, at least one main body shell, at least one prefilter element, at least one rotatable scraper blade, the scraper blade is located the air inlet side, be provided with the motor between prefilter element and the smart filter element, the drive shaft of motor passes prefilter element drive scraper blade rotation, smart filter element is removable to be inserted in the main body, the bottom of main body shell is equipped with the dust collection box that communicates prefilter element upstream space, the dust collection box.

10. The stably-sliding ash removal device for the steel structure of the building as claimed in claim 9, further comprising power air, wherein the high-pressure blowing air and the power air are provided by an air bottle or a first fan, the low pressure in the low-pressure cavity is provided by a second fan, and the second fan is connected between a low-pressure air outlet and an air inlet; or the low-pressure air outlet is directly communicated with the air inlet, the air outlet is communicated with the air suction port of the third fan, and the high-pressure air inlet is communicated with the air outlet of the third fan.