CN113732957A

CN113732957A - Adhesion-increasing type rust removal process for steel structure

Info

Publication number: CN113732957A
Application number: CN202110920630.0A
Authority: CN
Inventors: 孙月
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-03

Abstract

The invention discloses an adhesion-increasing type rust removal process for a steel structure, which belongs to the field of rust removal processes for the steel structure.

Description

Adhesion-increasing type rust removal process for steel structure

Technical Field

The invention relates to the field of steel structure rust removal processes, in particular to an additional type rust removal process for a steel structure.

Background

Steel structures are structures composed of steel materials and are one of the main building structure types. The structure mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, and rust removing and preventing processes such as silanization, pure manganese phosphating, washing drying, galvanization and the like are adopted. In the prior art, a shot blasting method is generally adopted.

The shot blasting and rust removing process comprises the following steps: the steel structural member or steel material is sent to a projecting area in a cleaning machine chamber body by an electrically controlled speed-adjustable conveying wheel way, each surface of the whole body of the steel structural member or steel material is hit and rubbed by strong intensive shot balls from different coordinate directions, so that an oxide skin, a rust layer and dirt on the oxide skin, the rust layer and the dirt on the oxide skin and the rust layer drop rapidly, the surface of the steel material obtains a smooth surface with certain roughness, and workpieces are loaded and unloaded on the wheel way at two sides of a cleaning chamber;

shot and rust dust falling onto steel are swept by the sweeping device, a shot dust mixture falling off is conveyed to a chamber body hopper by a recovery screw, collected at the lower part of a lifting machine by a longitudinal and transverse screw conveyor and then lifted into a separator on the upper part of the machine, and pure separated shots fall into a separator hopper for shot blasting circulation.

In the shot blasting rust removal process, however, the rust layer is separated by the impact and friction between the shot and the steel structural member, so that the rust removal efficiency is low.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an adhesion-increasing type rust removal process for a steel structure, which is characterized in that small granular shot and large granular adhesion-increasing shot are combined and synchronously thrown to the surface of a steel structure, the shot generates large impact and friction on the steel structure, a rust layer on the surface of the steel structure is mainly damaged, the adhesion-increasing shot impacts the steel structure at a low speed, a secondary damage effect is realized on the rust layer, an extension capsule is generated under the action of movement inertia, a surface contact mode is formed between the adhesion-increasing shot and the surface of the steel structure, the damaged rust layer is adsorbed and removed, the falling rate of the rust layer is effectively improved, and the rust removal efficiency is further improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An additional type rust removing process for a steel structure comprises the following steps:

s1, conveying the steel structural member to be processed into a shot blasting rust remover, starting the shot blasting rust remover, and simultaneously throwing small granular shot and large granular adhesion-increasing shot to the steel structural member at a certain speed;

s2, when the shot impacts the surface of the steel structural member, large impact and friction are generated on the steel structural member, and a rust layer on the surface of the steel structural member is damaged;

s3, when the adhesion increasing pills impact the surface of the steel structural member, the surface of the adhesion increasing pills generate extension capsules due to inertia effect while impacting the surface of the steel structural member, and the extension capsules are attached to the surface of the steel structural member to adsorb the crushed rust layer on the surface of the steel structural member;

s4, through the combined action of the shot and the adhesion increasing shot, the falling of the rust layer on the surface of the steel structural member is accelerated, so that the surface of the steel structural member obtains a smooth surface with certain roughness, and the rust removing process is realized.

Furthermore, the diameter of the pill is 0.8mm-2.5mm, and the diameter of the adhesion-increasing pill is 1cm-5 cm.

Furthermore, the increase and attach pill includes the spherical shell, the spherical shell adopts the same material with the pill, the inside of spherical shell is equipped with the autogenous pressure inner core.

Furthermore, the inner wall of the spherical shell is fixedly connected with a plurality of uniformly distributed liquid-coated membranes, and deionized water is filled between the liquid-coated membranes and the spherical shell.

Furthermore, a plurality of evenly distributed liquid holes are formed in the spherical shell, an extension magnetic film is fixedly connected to the inner wall of each liquid hole, and the plurality of liquid holes are evenly distributed on the inner sides of the plurality of liquid wrapping films.

Furthermore, one side of the liquid-coated membrane, which is far away from the spherical shell, is provided with a plurality of flexible pressing sheets which are uniformly distributed, one end of each flexible pressing sheet is fixedly connected with the inner wall of the spherical shell, adjacent flexible pressing sheets are in a partially up-down stacked state, and the flexible pressing sheets are made of flexible rubber.

Furthermore, the extension magnetic film comprises a combined film, and one end of the combined film, which is close to the liquid-wrapped film, is coated with a main magnetic coating.

Furthermore, an auxiliary magnetic coating is coated on the inner wall of the liquid hole and is positioned between the extension magnetic film and the liquid wrapping film.

Further, the self-pressing inner core comprises a flexible bag, and a plurality of granular hard balls are filled in the flexible bag.

Furthermore, a plurality of evenly distributed air overflow holes are formed in the spherical shell, breathable cotton is fixedly connected to the inner portions of the air overflow holes, and the breathable cotton is located between the adjacent liquid wrapping films.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through adopting the mode that little graininess shot and large granular form increase to attach the ball and combine together, throw to steel structure surface in step, the shot strikes to steel structure with great speed, produce great impact and friction, play main destruction effect to the rust layer on its surface, increase and attach the shot and strike to steel structure with less speed, the secondary destruction effect that plays to the rust layer, and produce the extension bag under the inertia effect of moving, form the face contact mode with steel structure surface, adsorb, clear away destroyed rust layer, effectively improve the shedding rate of rust layer, and then improve rust cleaning efficiency.

(2) The small granular shot in the invention is the rust removal shot made of iron shot, manganese steel shot or other materials in the prior art, plays a main role in damaging a rust layer on the surface of a steel structural member, greatly reduces the adhesive strength of the rust layer, and is combined with a secondary damage role played by an adsorption increasing shot on the rust layer, so that the damaged rust layer is adsorbed and removed, the falling rate of the rust layer is effectively improved, and the rust removal efficiency is further improved.

(3) The adhesion increasing pill comprises a ball shell, the ball shell is made of the same material as the pill, so that the adhesion increasing pill has certain strength, the impact damage is not easy to occur during use, in addition, the volume of the adhesion increasing pill is larger, the air resistance received after the adhesion increasing pill is thrown out is larger, the speed of the adhesion increasing pill when the adhesion increasing pill impacts a steel structural member is smaller than the impact speed of the pill, namely the impact force is smaller, and the damage probability of the adhesion increasing pill is further reduced.

(4) Extend the magnetic film and play the seal effect to the liquid hole, during the deionized water in the package liquid film can enter the liquid hole, simultaneously under the stopping of extension magnetic film, be difficult for overflowing from the liquid hole to, after in the deionized water enters the liquid hole in a large number, can cause to extend the magnetic film and expand to the spherical shell outside, promptly: the situation that the extended capsule is generated on the surface of the adhesion-increasing pill mentioned in the step S3 occurs, and the extended capsule is the extended magnetic film wrapped with the deionized water.

(5) Through the magnetic attraction between the main magnetic coating and the auxiliary magnetic coating, the extended magnetic film is positioned on the inner side of the liquid hole in an initial state in a more stable way, namely: the surface of the adhesion increasing pill is smooth and has no bulge, when the adhesion increasing pill is sprayed to a steel structural member, the spherical shell and the steel structural member are effectively ensured to form a point contact state, after the spherical shell and the steel structural member form impact, a plurality of extending magnetic films near the impact point expand outwards again and are attached to the surface of the steel structural member, and the broken rust layer on the surface of the steel structural member is adsorbed and removed.

(6) In the rust removing process, the spherical shell drives the self-pressing inner core on the inner side of the spherical shell to be thrown towards the steel structural member synchronously, when the spherical shell impacts the surface of the steel structural member, the self-pressing inner core continues to move forwards due to movement inertia, the granular hard balls are dispersed and move in the flexible bag, the self-pressing inner core deforms and rapidly impacts a plurality of flexible pressing sheets close to the steel structural member at a speed rate close to that of the spherical shell, the flexible pressing sheets bend towards the inner wall of the spherical shell to extrude the liquid-coated film, deionized water on the inner side of the liquid-coated film is promoted to enter the extension magnetic film through the liquid holes, the extension magnetic film rapidly expands outwards to form extension bags until the extension bags are attached to the surface of the steel structural member, and when the spherical shell is separated from the surface of the steel structural member, the extension magnetic film can separate part of layers, so that the function of removing broken rust layers on the surface of the steel structural member is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of the adhesion-promoting pellet of the present invention;

FIG. 3 is a schematic front view of the adhesion-promoting pill of the present invention before use;

FIG. 4 is a schematic view of a partial front structure of the pill of the present invention before use;

FIG. 5 is a partial perspective view of a flexible sheeting of the present invention;

FIG. 6 is a schematic diagram of a partial front structure of an extended magnetic film according to the present invention;

FIG. 7 is a schematic view of a partial front structure of the self-pressing core of the present invention;

FIG. 8 is a schematic front view of the adhesion-promoting pill of the present invention in use;

FIG. 9 is a schematic view of the structure at A in FIG. 8;

fig. 10 is a partial front structural schematic view of the adhesion-increasing pill of the present invention in use.

The reference numbers in the figures illustrate:

1 spherical shell, 101 liquid holes, 102 air vents, 2 self-pressing inner cores, 21 flexible bags, 22 granule hard balls, 3 liquid bags, 4 flexible pressing sheets, 5 extending magnetic films, 51 combined films, 52 main magnetic coatings, 6 auxiliary magnetic coatings and 7 breathable cotton.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1, an attached rust removing process for a steel structure includes the following steps:

The diameter of the shot is 0.8mm-2.5mm, the diameter of the adhesion increasing shot is 1cm-5cm, the small granular shot in the invention is the rust removing shot in the prior art, namely the iron shot, the manganese steel shot or the rust removing shot made of other materials, the main damage effect is realized on the rust layer on the surface of the steel structural member, the adhesion strength of the rust layer is greatly reduced, the secondary damage effect of the adhesion increasing shot on the rust layer is combined, the damaged rust layer is adsorbed and removed, the falling rate of the rust layer is effectively improved, and the rust removing efficiency is further improved.

Referring to fig. 2 and 3, the adhesion increasing pellet includes a pellet shell 1, the pellet shell 1 is made of the same material as the pellet, so that the adhesion increasing pellet has a certain strength, and is not easy to be damaged by impact when in use, and because the adhesion increasing pellet has a large volume, the air resistance after being thrown out is large, the speed when the adhesion increasing pellet impacts a steel structural member is smaller than the impact speed of the pellet, that is, the impact force is small, so that the damage probability of the adhesion increasing pellet is further reduced, and supplementary description is provided: the adhesion-increasing pill needs to be debugged by technicians before use, so that the strength performance of the adhesion-increasing pill is effectively ensured to meet the use requirement, in addition, other shot blasting equipment or means can be used for controlling the projection rate of the adhesion-increasing pill when needed, the integrity of the adhesion-increasing pill is effectively ensured, and sufficient time is provided for forming an extension bag after impact.

Please refer to fig. 3 and 4, a self-pressure inner core 2 is arranged inside the spherical shell 1, the self-pressure inner core 2 can move freely inside the spherical shell 1, the inner wall of the spherical shell 1 is fixedly connected with a plurality of uniformly distributed liquid-wrapping films 3, deionized water is filled between the liquid-wrapping films 3 and the spherical shell 1, a plurality of uniformly distributed liquid holes 101 are formed in the spherical shell 1, the inner wall of the liquid holes 101 is fixedly connected with an extension magnetic film 5, the plurality of liquid holes 101 are uniformly distributed inside the plurality of liquid-wrapping films 3, the extension magnetic film 5 seals the liquid holes 101, deionized water in the liquid-wrapping films 3 can enter the liquid holes 101, and is not easy to overflow from the liquid holes 101 under the blocking of the extension magnetic film 5, and when the deionized water enters the liquid holes 101 in large quantity, the extension magnetic film 5 expands to the outside of the spherical shell 1, that is: the situation that the extended capsule is generated on the surface of the adhesion-increasing pill mentioned in the step S3 occurs, and the extended capsule is the extended magnetic film 5 wrapped with the deionized water.

Referring to fig. 4 and 5, one side of the liquid-covering membrane 3 away from the spherical shell 1 is provided with a plurality of flexible pressing sheets 4 which are uniformly distributed, the plurality of flexible pressing sheets 4 are circularly around the outer side of the liquid-covering membrane 3, one end of each flexible pressing sheet 4 is fixedly connected with the inner wall of the spherical shell 1, and adjacent flexible pressing sheets 4 are partially stacked up and down, the flexible pressing sheets 4 are made of flexible rubber, the plurality of flexible pressing sheets 4 are mutually matched to completely cover the outer side of the liquid-covering membrane 3, when the flexible pressing sheets 4 are subjected to the pressure of the self-pressing inner core 2, the flexible pressing sheets 4 uniformly transmit the pressure to the surface of the liquid-covering membrane 3, so that the deionized water on the inner side of the liquid-covering membrane 3 is pressed and enters the inner side of the liquid hole 101, and the extension magnetic membrane 5 is expanded outwards to form an extension bag.

Referring to fig. 6, the extended magnetic film 5 includes a combined film 51, one end of the combined film 51 near the liquid-covering film 3 is coated with a main magnetic coating 52, referring to fig. 3, the inner wall of the liquid hole 101 is coated with a sub magnetic coating 6, the sub magnetic coating 6 is located between the extended magnetic film 5 and the liquid-covering film 3, and the extended magnetic film 5 is located inside the liquid hole 101 more stably in an initial state by the magnetic attraction between the main magnetic coating 52 and the sub magnetic coating 6, that is: the surface of the adhesion increasing pill is smooth and has no bulge, when the adhesion increasing pill is sprayed to a steel structural member, the spherical shell 1 and the steel structural member are effectively ensured to form a point contact state, after the spherical shell 1 and the steel structural member form impact, a plurality of extending magnetic films 5 near the impact points expand outwards again and are attached to the surface of the steel structural member, and broken rust layers on the surface of the steel structural member are adsorbed and removed.

Referring to fig. 7, the self-pressing inner core 2 includes a flexible bag 21, a plurality of hard granular balls 22 are filled in the flexible bag 21, referring to fig. 8, in the process of rust removal, the spherical shell 1 with the inner self-pressing inner core 2 inside the spherical shell is thrown towards the steel structural member synchronously, when the spherical shell 1 impacts the surface of the steel structural member, the self-pressing inner core 2 continues to move forwards due to the movement inertia, the hard granular balls 22 are scattered and move in the flexible bag 21, the self-pressing inner core 2 deforms and rapidly impacts a plurality of flexible pressing sheets 4 close to the steel structural member at a rate similar to that of the spherical shell 1, the flexible pressing sheets 4 bend towards the inner wall of the spherical shell 1 to press the liquid-covering film 3, as shown in fig. 10, deionized water inside the liquid-covering film 3 is forced to enter the extending magnetic film 5 through the liquid holes 101, the extending magnetic film 5 rapidly expands outwards to form an extending bag until the extending bag is attached to the surface of the steel structural member, when the spherical shell 1 is separated from the surface of the steel structural member, the extending magnetic film 5 can strip part of the rust layer, so that the function of removing the broken rust layer on the surface of the steel structural member is achieved.

Referring to fig. 8 and 9, a plurality of evenly distributed air vents 102 are further formed in the spherical shell 1, the air permeable cotton 7 is fixedly connected inside the air vents 102, the air permeable cotton 7 is located between the adjacent liquid wrapping films 3, the air permeable cotton 7 has certain air permeability, so that the air inside the spherical shell 1 can circulate with the outside air, when the self-pressure inner core 2 approaches the flexible pressing sheet 4 to form an extension bag, the extension magnetic film 5 forms an extension bag, and the pressure inside the spherical shell 1 is reduced due to the reduction of the amount of deionized water inside the spherical shell 1, so that the outside air can enter the spherical shell 1 through the air permeable cotton 7, thereby facilitating the maintenance of the stable pressure inside the spherical shell 1.

The invention synchronously casts the shot to the surface of the steel structural member by adopting a mode of combining the small granular shot and the large granular adhesion increasing shot, the shot impacts the steel structural member at a higher speed to generate larger impact and friction, so as to have a main destructive effect on a rust layer on the surface of the steel structural member, the adhesion increasing shot impacts the steel structural member at a lower speed to have a secondary destructive effect on the rust layer, and generates an extension capsule under the action of motion inertia to form a surface contact mode with the surface of the steel structural member, so that the damaged rust layer is adsorbed and removed, the falling rate of the rust layer is effectively improved, and the rust removal efficiency is further improved.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. An additional rust removal process for a steel structure is characterized in that: the method comprises the following steps:

2. The added-type rust removing process for the steel structure as claimed in claim 1, which is characterized in that: the diameter of the pill is 0.8mm-2.5mm, and the diameter of the Zengfu pill is 1cm-5 cm.

3. The added-type rust removing process for the steel structure as claimed in claim 1, which is characterized in that: the adhesion-increasing pill comprises a spherical shell (1), wherein the spherical shell (1) is made of the same material as the pill, and a self-pressing inner core (2) is arranged inside the spherical shell (1).

4. The added-type rust removing process for the steel structure as claimed in claim 3, wherein the added-type rust removing process comprises the following steps: the inner wall of the spherical shell (1) is fixedly connected with a plurality of uniformly distributed liquid coating films (3), and deionized water is filled between the liquid coating films (3) and the spherical shell (1).

5. The added-type rust removing process for the steel structure as claimed in claim 4, wherein the added-type rust removing process comprises the following steps: the spherical shell (1) is provided with a plurality of uniformly distributed liquid holes (101), the inner wall of each liquid hole (101) is fixedly connected with an extension magnetic film (5), and the plurality of liquid holes (101) are uniformly distributed on the inner sides of the plurality of liquid coating films (3).

6. The added-type rust removing process for the steel structure as claimed in claim 4, wherein the added-type rust removing process comprises the following steps: one side of the liquid coating film (3) far away from the spherical shell (1) is provided with a plurality of flexible pressing sheets (4) which are uniformly distributed, one end of each flexible pressing sheet (4) is fixedly connected with the inner wall of the spherical shell (1), a local up-down stacking state is formed between every two adjacent flexible pressing sheets (4), and the flexible pressing sheets (4) are made of flexible rubber.

7. The added-type rust removing process for the steel structure as claimed in claim 5, wherein the added-type rust removing process comprises the following steps: the extension magnetic film (5) comprises a combined film (51), and a main magnetic coating (52) is coated at one end, close to the liquid-coated film (3), of the combined film (51).

8. The added-type rust removing process for the steel structure as claimed in claim 5, wherein the added-type rust removing process comprises the following steps: the inner wall of the liquid hole (101) is coated with an auxiliary magnetic coating (6), and the auxiliary magnetic coating (6) is positioned between the extension magnetic film (5) and the liquid coating film (3).

9. The added-type rust removing process for the steel structure as claimed in claim 3, wherein the added-type rust removing process comprises the following steps: the self-pressing inner core (2) comprises a flexible bag (21), and a plurality of granular hard balls (22) are filled in the flexible bag (21).

10. The added-type rust removing process for the steel structure as claimed in claim 4, wherein the added-type rust removing process comprises the following steps: the spherical shell (1) is further provided with a plurality of uniformly distributed air overflow holes (102), the air-permeable cotton (7) is fixedly connected inside the air overflow holes (102), and the air-permeable cotton (7) is located between the adjacent liquid wrapping films (3).