CN213859884U - Evaporate and press aerated concrete raw materials homogeneity exhaust apparatus - Google Patents

Abstract

The utility model discloses an autoclaved aerated concrete raw material homogenizing exhaust device, which comprises a vibrating screen and a lifting mechanism for driving the vibrating screen to move up and down, wherein the vibrating screen is fixedly connected with the lifting movable end of the lifting mechanism; the vibrating screen is provided with a vibrating assembly for driving the vibrating screen to vibrate; the vibrating screen comprises a screen plate, wherein a plurality of screen holes are uniformly distributed on the screen plate. The utility model discloses satisfying under the prerequisite of effectively exhausting the bubble, realized the impurity removal and the homogeneity to the concrete raw materials, greatly improved off-the-shelf quality.

Description

Evaporate and press aerated concrete raw materials homogeneity exhaust apparatus

Technical Field

The utility model relates to an evaporate and press aerated concrete to make technical field, in particular to evaporate and press aerated concrete raw materials homogeneity exhaust apparatus.

Background

The autoclaved aerated concrete block is a novel building material which is light and porous, has good heat preservation and insulation performance, good fireproof performance, excellent processing performance and certain shock resistance. At present, when autoclaved aerated concrete blocks are produced, the raw materials are mixed and then need to be subjected to standing preforming operation, so that the concrete is pre-coagulated and formed. In order to ensure that the strength of the finally prepared autoclaved aerated concrete block can meet the requirement, the amount of bubbles in the preformed concrete blank needs to be controlled, so that the concrete material in the mold needs to be subjected to bubble removal treatment when the mixed raw material is poured into a preformed mold. At present, a vibration mechanism such as a vibrating bar or a vibrating plate is generally adopted to remove air bubbles in the concrete material by vibrating the concrete material.

However, the prior art has problems in the process of removing bubbles.

Firstly, the vibrating spear in the prior art is generally inserted into a blank after pouring, and is limited by factors such as the distribution, the insertion depth and the like of the vibrating spear, so that air bubbles cannot be completely exhausted, and the quality of a finished product is influenced. For example, in chinese patent publication No. CN108943357B, "an exhaust device for autoclaved aerated concrete blocks", concrete is exhausted by using a rod-shaped vibration mechanism, and it is difficult to achieve 100% exhaustion.

Secondly, adopt vibration mechanisms such as vibration board, drive whole mould vibrations through vibration mechanism promptly, finally realize vibrations exhaust. For example, the Chinese patent with the publication number of CN210939775U, "a vibration device for producing autoclaved aerated concrete blocks" adopts the mode for exhausting gas. The mode is difficult to exhaust bubbles completely, the surface of the poured concrete material is compact, and when the concrete material is exhausted in a vibrating mode, a proper exhaust channel is not arranged between the inside and the outside, so that partial gas cannot be exhausted. Even if the airway is artificially created by inserting a stick-like assembly, again limited by factors such as distribution and insertion depth, complete ventilation is not achieved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to an at least technical problem who exists among the prior art, provide an evaporate and press aerated concrete raw materials homogeneity exhaust apparatus, satisfying under the prerequisite of effectively exhausting the bubble, realized removing impurity and homogeneity to the concrete raw materials, greatly improved off-the-shelf quality.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the homogeneous exhaust device for the autoclaved aerated concrete raw materials comprises a vibrating screen and a lifting mechanism for driving the vibrating screen to move up and down, wherein the vibrating screen is fixedly connected with the lifting movable end of the lifting mechanism; the vibrating screen is provided with a vibrating assembly for driving the vibrating screen to vibrate; the vibrating screen comprises a screen plate, wherein a plurality of screen holes are uniformly distributed on the screen plate.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the lifting mechanism is a winch.

Preferably, the lifting mechanism is a winch with adjustable lifting speed.

Further, still be provided with hoist and mount portion on the shale shaker for with elevating system's lift movable end fixed connection.

Preferably, the vibrating screen further comprises an outer frame, the screen plate is embedded in the outer frame, and the hoisting part is fixedly installed on the outer frame.

Further, the vibration component is a vibration motor.

Preferably, the vibration component is a vibration motor with adjustable vibration frequency.

Further, the shape and the size of the vibrating screen are matched with the shape of an inner cavity of the concrete mold.

Furthermore, the aperture of the sieve pore is 8-35 mm.

Further, the distance between the adjacent sieve holes is 10-30 mm.

The utility model discloses following beneficial effect has:

1) the utility model discloses effectively realized the exhaust to concrete placement material, through the vibration of porous sieve plate with reciprocate, effectively constructed reasonable exhaust passage for the gas that produces in the concrete placement material can effectively be arranged to the greatest extent, has greatly improved the quality that evaporates pressure aerated concrete.

2) The utility model discloses a vibration of sieve plate with reciprocate, has still realized the raw materials remixing to the concrete placement material, utilizes the sieve to realize simultaneously that the heavy material in the messenger concrete constantly shifts up, and the process that sinks through the vibration after and, splendid realization to the homogeneity process of concrete raw materials, guaranteed the quality and the weight uniformity of the concrete block that finally makes.

3) The utility model discloses can also with the impurity separation such as leaf, plastic cloth incomplete piece, branch and/or stone in the concrete placement material, through the filtering action of sieve mesh, with the effective filtering of these impurity, ensured links such as cutting can not cause the product flaw because of impurity in the follow-up production process, effectively improved the quality and the yields of product, greatly reduced the rejection rate, effectively saved manufacturing cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the vibrating screen of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. the vibrating screen comprises a vibrating screen body, a screen plate 1a, a screen plate 1b, an outer frame 1c, a screen hole 1d, a hanging part 2, a vibrating component 3, a lifting mechanism 4, an upper frame 5, a guide rail 6 and a concrete mold.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in figure 1 and figure 2, the utility model relates to an evaporate and press aerated concrete raw materials homogeneity exhaust apparatus, including shale shaker 1 and the elevating system 3 that is used for driving the shale shaker to reciprocate, shale shaker 1 and elevating system 3's lift movable end fixed connection. And the vibrating screen 1 is provided with a vibrating component 2 for driving the vibrating screen to vibrate. The vibrating screen 1 comprises a screen plate 1b, and a plurality of screen holes 1c are uniformly distributed on the screen plate 1 b. During specific assembly, the lifting mechanism 3 can be fixedly arranged on the upper frame 4 above the guide rail 5 of the concrete production line. The utility model discloses an installation position best selects to pour the region at the concrete raw materials.

At present, the production of autoclaved aerated concrete has an exhaust process to ensure that air bubbles in a concrete pouring material are removed after pouring, so that a concrete blank is more compact, and the quality of a finished product is improved. Because the casting material in the concrete mould is exhausted, in order to not damage the appearance of the casting material, a vibrating rod, a vibrating plate and other mechanisms are generally adopted to realize vibrating exhaust at present.

After long-time detection on the product quality, the inventor finds that the weight of the autoclaved aerated concrete block manufactured by adopting the prior art is different. Moreover, after summary research on construction problems, the wall body constructed by the autoclaved aerated concrete block manufactured by the prior art is very easy to crack, and the block is also easy to crack after being pressed. After the research of the inventor on the existing autoclaved aerated concrete manufacturing process, the inventor speculates that the problems are caused by the vibration exhaust process. The inventor believes that the autoclaved aerated concrete block is produced by integrally pouring into a large block, then performing, and then performing cutting and autoclaved aeration processes, so that the inconsistent product weight is caused by uneven weight of the concrete raw material during pouring. The raw materials are uniformly mixed by mixing equipment, so that the problem of uneven weight of the upper part and the lower part during pouring is avoided. The inventor believes that the heavy material in the concrete casting settles due to the strong vibration during the vibration exhaust process, which causes the problem of uneven weight.

The above problems are not reported in the prior art, and the inventors found the above problems and found a new direction for improving the product quality.

Based on the above problems, the inventor has designed the technical scheme in combination with the problem that exhaust gas cannot be exhausted in the prior art. Through the vibration and the reciprocating of porous sieve board 1b, utilize sieve mesh 1c of intensive arrangement effectively to construct reasonable exhaust passage for the gas that produces in the concrete placement material can effectively be arranged to the greatest extent. In the process, the sieve plate 1b is used for realizing continuous upward movement of heavy materials in the concrete, and then the heavy materials are vibrated to sink, so that the homogenization process of the concrete raw materials is well realized, and the quality and the weight consistency of the finally prepared concrete block are ensured. Through reasonable structural design, the problem of prior art exhaust efficiency and the problem of homogeneity have been solved simultaneously.

The sieve plate 1b is adopted to realize vibration exhaust, which can damage the appearance of the poured concrete blank, for the field, the process steps can be increased, for the production, the process can be complicated, the production cost can be correspondingly increased, and the like. The prior art does not contemplate the use of such structural components to achieve vibratory venting. The inventor aims to solve the series of problems, so that the appearance of the castable is damaged by adopting a mode of increasing process steps, the castable is restored by adding the subsequent process steps to greatly improve the product quality, the technical bias is overcome, and the breakthrough of the product quality is realized.

In the preferred embodiment of the present invention, the lifting mechanism 3 is a hoist.

Preferably, the lifting mechanism 3 is a winch with adjustable lifting speed.

The winch is used as a driving mechanism for driving the vibrating screen 1 to move up and down, and the winch is used for driving the vibrating screen 1 to move up and down by hoisting or lowering a steel wire rope or a steel wire. Can reduce the resistance to a certain extent through the cutting action of wire rope or steel wire, do the cutting to the concrete blank simultaneously in advance, when making follow-up shale shaker 1 vibration exhaust, the material can disperse more.

The speed is adjustable, and the up-and-down moving speed of the vibrating screen 1 can be adjusted according to the requirement, so that the homogenizing effect is ensured. Too fast a speed will result in a heavy top with a light bottom and too slow a speed will result in a light top with a heavy bottom. For different raw materials, the speed needs to be adjusted to obtain the best homogenization effect.

In the preferred embodiment of the present invention, the vibration component 2 is a vibration motor.

Preferably, the vibration component 2 is a vibration motor with adjustable vibration frequency.

The vibration motor is adopted as a seismic source providing component, and the advantages of small size, light weight and convenience in assembly of the vibration motor are fully utilized. Install on shale shaker 1, the vibrations of drive shale shaker 1 that can be better can not cause to shelter from on a large scale to sieve mesh 1c simultaneously.

In the preferred embodiment of the present invention, the shape and size of the vibrating screen 1 are adapted to the shape of the inner cavity of the concrete form 6.

And the reasonable size configuration can ensure that no dead angle exists in the vibration exhaust and homogenizing process.

The utility model discloses in the preferred embodiment, still fixed hoist and mount portion 1d that is provided with on shale shaker 1 for with elevating system 2's lift expansion end fixed connection.

Preferably, the vibrating screen 1 further comprises an outer frame 1a, the screen plate 1b is embedded in the outer frame 1a, and the hanging part 1d is fixedly installed on the outer frame 1 a.

Above-mentioned structure can form the protection to sieve 1b through frame 1a at first, avoids shaking the in-process and takes place to collide with the inner wall of concrete mold 6 and lead to sieve 1b to warp. Secondly, the cutting and the dispersion of the concrete pouring material can be better realized.

The utility model discloses in the preferred embodiment, the aperture of sieve mesh 1c is 8 ~ 35 mm. And the distance between the adjacent sieve holes 1c is 10-30 mm.

The core of the utility model lies in the size and the dense degree of the sieve pores 1 c. Reasonable aperture can let the concrete material drop from sieve mesh 1c, realizes the homogeneity at the exhaust in-process. Meanwhile, impurities can be filtered while exhausting. And the hole interval has decided the degree of densely covering, direct influence exhaust effect, and sieve mesh 1c is too few, distributes too sparsely, can lead to unable exhaust gas, and too closely then influences the intensity of sieve 1b, can lead to the pressure when sieve 1b can't bear vibrations exhaust. The selection of the aperture and the aperture interval fully considers the factors, and can obtain better homogenization and exhaust effects.

The utility model discloses the working process is as follows:

before casting, the concrete moulds 6 are first transported to the casting area via the guide rails 5.

And then, lowering the vibrating screen 1 by using a winch to enable the vibrating screen 1 to directly fall to the bottom of the inner cavity of the concrete mold 6.

Then, a concrete casting is poured into the concrete mold 6.

And finally, starting the vibrating motor to vibrate the vibrating screen 1, and simultaneously, slowly hoisting the vibrating screen 1 at a constant speed by the winch. In the process, concrete pouring materials are dispersed continuously due to the vibration of the vibrating screen 1, fall through the screen holes 1c, gas is discharged completely, heavy materials move upwards at the same time, and then settle at a constant speed due to vibration to complete the homogenization of the materials.

The mechanisms, assemblies and components of the present invention that are not described with respect to specific structures are conventional structures that exist in the prior art. Such as a vibration motor and a winch, etc., which are used as the vibration unit 2 and the lifting mechanism 3, can be directly purchased from the market.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides an evaporate and press aerated concrete raw materials homogeneity exhaust apparatus which characterized in that: the homogenizing exhaust device comprises a vibrating screen (1) and a lifting mechanism (3) for driving the vibrating screen (1) to move up and down, and the vibrating screen (1) is fixedly connected with the lifting movable end of the lifting mechanism (3); the vibrating screen (1) is provided with a vibrating assembly (2) for driving the vibrating screen (1) to vibrate; the vibrating screen (1) comprises a screen plate (1b), and a plurality of screen holes (1c) are uniformly distributed on the screen plate (1 b).

2. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 1, characterized in that: the lifting mechanism (3) is a winch.

3. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 2, characterized in that: the lifting mechanism (3) is a winch with adjustable lifting speed.

4. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 1, characterized in that: and a hoisting part (1d) is fixedly arranged on the vibrating screen (1) and is fixedly connected with the lifting movable end of the lifting mechanism (3).

5. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 4, characterized in that: the vibrating screen (1) further comprises an outer frame (1a), the screen plate (1b) is embedded in the outer frame (1a), and the hoisting part (1d) is fixedly installed on the outer frame (1 a).

6. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 1, characterized in that: the vibration component (2) is a vibration motor.

7. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 6, characterized in that: the vibration component (2) is a vibration motor with adjustable vibration frequency.

8. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 1, characterized in that: the shape and the size of the vibrating screen (1) are matched with the shape of an inner cavity of the concrete mould (6).

9. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 1, characterized in that: the aperture of the sieve pore (1c) is 8-35 mm.

10. The autoclaved aerated concrete raw material homogeneous exhaust device according to claim 1, characterized in that: the distance between the adjacent sieve holes (1c) is 10-30 mm.

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