CN111391135B

CN111391135B - Blast air fiber dispersing device

Info

Publication number: CN111391135B
Application number: CN202010185401.4A
Authority: CN
Inventors: 康孟新; 万成; 王德弘
Original assignee: Northeast Dianli University
Current assignee: Northeast Electric Power University
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2021-08-10
Anticipated expiration: 2040-03-17
Also published as: CN111391135A

Abstract

The invention relates to a blowing fiber dispersing device, which is characterized by comprising: the feeding chamber shell, folded plate dispersion chamber shell, turbulence dispersion chamber shell, variable multidirectional intake pipe, gas flow control valve, the air compressor machine, through variable multidirectional intake pipe, produce gaseous transport to turbulence dispersion chamber with the air compressor machine, the fibre in the feeding chamber, through the clearance between the folded plate in the folded plate dispersion chamber, evenly get into turbulence dispersion chamber, under the air current effect, the fibre collides with the baffler continuous of turbulence dispersion chamber, the air current size is adjusted through gas flow control valve, control fibre evenly gets into the concrete agitator tank in succession, fully evenly stir with the concrete, make the concrete of production satisfy technical requirement completely, wide application scope, moreover, the steam generator is simple in structure, be applicable to the dispersion of different composition and structural fiber, the problem of adding the fibre inefficiency has been solved.

Description

Blast air fiber dispersing device

Technical Field

The invention relates to the field of constructional engineering equipment, in particular to a blowing fiber dispersing device.

Background

In civil engineering construction, concrete materials are widely used, but concrete has the defects of low tensile strength, obvious brittleness and poor toughness. By adding a certain amount of fibers such as steel fibers, basalt fibers, polypropylene fibers and the like into the concrete, the formation and development of micro cracks in the concrete can be effectively inhibited, and the strength, toughness, fatigue resistance and freeze-thaw damage resistance of the concrete are improved. When the fibers which are not dispersed or are not uniformly dispersed are put into a concrete mixing tank, the fibers are easy to agglomerate and cannot be uniformly mixed with concrete, and obvious initial defects are generated in the concrete, so that the mechanical property of the concrete is influenced, and even the mechanical property of the concrete is influenced. All manual addition is carried out in the traditional fiber adding process, the efficiency is low, the effect is often unsatisfactory, and particularly in the mass production of fiber concrete, the uneven dispersion of fibers is often a key node for restricting the production cost and quality control of the fiber concrete.

Disclosure of Invention

Aiming at the problems of low efficiency of manually adding fibers and poor effect of blended concrete caused by uneven dispersion of the fibers, the invention designs the air blowing fiber dispersing device, which conveys gas generated by an air compressor to a turbulent flow dispersing chamber through a variable multidirectional air inlet pipe, fibers in a feeding chamber uniformly enter the turbulent flow dispersing chamber through gaps among folded plates in the folded plate dispersing chamber, and continuously collide with a baffle plate of the turbulent flow dispersing chamber under the action of air flow, the size of the air flow is adjusted by a gas flow control valve, the fibers are controlled to continuously and uniformly enter a concrete stirring tank and are uniformly stirred with the concrete, so that the produced concrete completely meets the technical requirements, and meanwhile, the production efficiency is effectively improved.

The technical scheme adopted for realizing the invention is as follows: a blowing fiber dispersing device, characterized in that it comprises: a feeding chamber shell 1, a folded plate dispersing chamber shell 2, a turbulent flow dispersing chamber shell 3, a variable multidirectional air inlet pipe 4, an air flow control valve 5 and an air compressor 6, wherein the feeding chamber shell 1 is internally provided with a feeding chamber 11, the feeding chamber 11 is hollow and is communicated up and down, the folded plate dispersing chamber shell 2 is internally provided with a folded plate dispersing chamber 21, the folded plate dispersing chamber 21 is hollow and is communicated up and down, a group of folded plates 22 are parallelly and fixedly connected in the folded plate dispersing chamber 21, the turbulent flow dispersing chamber shell 3 is internally provided with a turbulent flow dispersing chamber 31, the turbulent flow dispersing chamber 31 is hollow and is communicated up and down, one side wall of the turbulent flow dispersing chamber 31 is a baffle connecting plate 34, the inner wall of the baffle connecting plate 34 is parallelly and fixedly connected with a group of baffles 33, the side wall opposite to the baffle connecting plate 34 is provided with a turbulent flow dispersing chamber connecting hole 32, the lower bottom surface of the feeding chamber 11 is hermetically and fixedly connected with the, the folded plate dispersing chamber 21 is fixedly connected with the upper bottom surface of the turbulent dispersing chamber 31 in a sealing mode, the turbulent dispersing chamber connecting hole 32 is fixedly connected with one end of the variable multidirectional air inlet pipe 4 in a sealing mode, the other end of the variable multidirectional air inlet pipe 4 is fixedly connected with the air outlet pipe of the air compressor 6 in a sealing mode, and the air compressor 6 is provided with the gas flow control valve 5.

The included angle between the baffle plate connecting plate (34) and the horizontal plane is 60 degrees.

The cross section of the baffle plate 33 is an equilateral triangle.

The distance from the apex of the flap 22 to the bottom is 1/2 of the total height H of the flap dispensing compartment 21.

The included angle of the folded plate 22 is 60-90 degrees.

The gap h between adjacent flaps of the set of flaps 22 is 2-3 times the fiber length.

The air blowing fiber dispersing device has the beneficial effects that:

1. the fiber is primarily dispersed and dispersed by gas turbulence through the folded plate, so that the fiber agglomeration can be avoided, the fiber is in a uniform dispersion state, the fiber is controlled to continuously and uniformly enter the concrete stirring tank and be uniformly stirred with the concrete, the produced concrete completely meets the technical requirements, and the fiber dispersion device is suitable for the dispersion of fibers with different components and structures;

2. the fiber passes through gas flow control valve and adjusts the air compressor machine flow, through the gaseous direction of variable multidirectional intake pipe adjustment, can be used for the fiber of dispersion different grade type, and application scope is wide, simple structure, and low in cost is simply easily operated, satisfies mass production needs, has solved the problem that adds the fibre inefficiency.

Drawings

FIG. 1 is a three-dimensional schematic view of a blowing fiber dispersion apparatus;

FIG. 2 is a three-dimensional schematic view of the piece 2 of FIG. 1;

FIG. 3 is a front view of the piece 2 of FIG. 1;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a three-dimensional schematic view of the piece 3 of FIG. 1;

FIG. 6 is a front view of the piece 3 of FIG. 1;

FIG. 7 is a cross-sectional view B-B of FIG. 6;

in the figure: 1. the device comprises a feeding chamber shell, 11 feeding chambers, 2 folded plate dispersing chamber shells, 21 folded plate dispersing chambers, 22 folded plates, 3 turbulent flow dispersing chamber shells, 31 turbulent flow dispersing chambers, 32 turbulent flow dispersing chamber connecting holes, 33 baffle plates, 34 baffle plate connecting plates, 4 variable multidirectional air inlet pipes, 5 gas flow control valves and 6 air compressors.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments, which are described herein for purposes of illustration only and are not intended to be limiting.

Referring to fig. 1 to 7, a blowing fiber dispersing device includes: a feeding chamber shell 1, a folded plate dispersing chamber shell 2, a turbulent flow dispersing chamber shell 3, a variable multidirectional air inlet pipe 4, an air flow control valve 5 and an air compressor 6, wherein the feeding chamber shell 1 is internally provided with a feeding chamber 11, the feeding chamber 11 is hollow and is communicated up and down, the folded plate dispersing chamber shell 2 is internally provided with a folded plate dispersing chamber 21, the folded plate dispersing chamber 21 is hollow and is communicated up and down, a group of folded plates 22 are parallelly and fixedly connected in the folded plate dispersing chamber 21, the turbulent flow dispersing chamber shell 3 is internally provided with a turbulent flow dispersing chamber 31, the turbulent flow dispersing chamber 31 is hollow and is communicated up and down, one side wall of the turbulent flow dispersing chamber 31 is a baffle connecting plate 34, the inner wall of the baffle connecting plate 34 is parallelly and fixedly connected with a group of baffles 33, the side wall opposite to the baffle connecting plate 34 is provided with a turbulent flow dispersing chamber connecting hole 32, the lower bottom surface of the feeding chamber 11 is hermetically and fixedly connected with the upper bottom surface of the folded plate dispersing chamber 21, the folded plate dispersing chamber 21 is fixedly connected with the upper bottom surface of the turbulent dispersing chamber 31 in a sealing mode, the turbulent dispersing chamber connecting hole 32 is fixedly connected with one end of the variable multidirectional air inlet pipe 4 in a sealing mode, the other end of the variable multidirectional air inlet pipe 4 is fixedly connected with the air outlet pipe of the air compressor 6 in a sealing mode, and the air compressor 6 is provided with the gas flow control valve 5.

The included angle between the baffle plate connecting plate 34 and the horizontal plane is 60 degrees.

The cross section of the baffle plate 33 is an equilateral triangle.

The included angle of the folded plate 22 is 60-90 degrees.

Storing fibers in a feeding chamber 11 of the embodiment, sealing and butting the lower bottom surface of a turbulence dispersion chamber 31 with a fiber inlet of a concrete stirring tank, starting an air compressor 6, adding the fibers into the feeding chamber 11, then dropping the fibers into a folded plate dispersion chamber 21, primarily dispersing the fibers in the folded plate dispersion chamber 21 by the action of a folded plate 22, dropping the fibers into the turbulence dispersion chamber 31 from gaps among the folded plates 22, adjusting the air flow by the air compressor 6 through an air flow control valve 5 according to the density and the shape structure of the fibers, enabling a variable multidirectional air inlet pipe 4 to have certain pressure resistance, changing the direction of a pipeline within a certain angle range, enabling air with certain pressure and direction to enter the turbulence dispersion chamber 3, enabling the fibers to make irregular movement under the combined action of air resistance and self gravity, fully dispersing the fibers, wherein the heavier fibers drop into the concrete stirring tank, the lighter fibers can be in contact with the baffle plate 33 of the turbulent flow dispersion chamber 31, slide down along the surface of the baffle plate 33, finally fall into the concrete stirring tank, and are uniformly stirred with concrete, so that the produced concrete completely meets the technical requirements, the fiber blockage problem cannot exist in the fiber dispersion process, the operation of clearing fiber conglomeration blockage by starting the machine is avoided, and the operation is simple and efficient.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

1. A blowing fiber dispersing device, characterized in that it comprises: a feeding chamber shell (1), a folded plate dispersing chamber shell (2), a turbulent flow dispersing chamber shell (3), a variable multidirectional air inlet pipe (4), a gas flow control valve (5) and an air compressor (6), wherein the feeding chamber shell (1), the folded plate dispersing chamber shell (2) and the turbulent flow dispersing chamber shell (3) are sequentially and fixedly connected, a feeding chamber (11) is arranged in the feeding chamber shell (1), a folded plate dispersing chamber (21) is arranged in the folded plate dispersing chamber shell (2), a group of folded plates (22) are fixedly connected in parallel in the folded plate dispersing chamber (21), a turbulent flow dispersing chamber (31) is arranged in the turbulent flow dispersing chamber shell (3), the feeding chamber (11), the folded plate dispersing chamber (21) and the turbulent flow dispersing chamber (31) are vertically communicated, one side wall of the turbulent flow dispersing chamber (31) is a resistance plate connecting plate (34), and a group of resistance plates (33) are fixedly connected in parallel in the inner wall of the resistance plate (34), resistance plate connecting plate (34) opposite side wall on be equipped with turbulent flow dispersion room connecting hole (32), feed chamber (11) under the bottom surface and folded plate dispersion room (21) go up the bottom surface sealed link firmly, folded plate dispersion room (21) under the bottom surface and turbulent flow dispersion room (31) go up the bottom surface sealed link firmly, turbulent flow dispersion room connecting hole (32) and variable multidirectional intake pipe (4) one end sealed link firmly, variable multidirectional intake pipe (4) other end and air compressor machine (6) outlet duct sealed link firmly air compressor machine (6) on be equipped with gas flow control valve (5).

2. A blower fibre dispersion device as claimed in claim 1 in which the baffle attachment plate (34) is angled at 60 ° to the horizontal.

3. A blower fibre dispersion device as claimed in claim 1 in which the cross-section of the baffle (33) is equilateral triangular.

4. A blowing fibre dispersion device according to claim 1 or 3, characterised in that the distance from the top to the bottom of the flaps (22) is 1/2 of the total height H of the flap dispersion chamber (21).

5. A blower fibre dispersion device as claimed in claim 1 in which the angle of each flap of the set of flaps (22) is 60 ° to 90 °.

6. A blowing fibre dispersion device according to claim 1 or 5, characterised in that the gap h between adjacent flaps of the set of flaps (22) is 2-3 times the fibre length.