CN214917995U - Concrete raw material classifying and screening device - Google Patents

Abstract

The utility model belongs to a concrete processing technology field, the utility model relates to a concrete raw materials classifying screen material device, including the material screening machine body to and install the quick-witted case that is used for providing power on the material screening machine body surface, and install the feed inlet that is used for the feed on the material screening machine body upper surface, still including installing the fan that admits air at the material screening machine body upper surface, the lower surface mounting of the fan that admits air has the wind scooper to and install at inside one-level fixed screen and the second grade fixed screen of material screening machine body, the upper surface of one-level fixed screen and second grade fixed screen is respectively through a plurality of spring fixedly connected with one-level shale shaker and second grade shale shaker, the upper surface of one-level fixed screen and second grade fixed screen all is provided with a plurality of dead lever, and when the sieve mesh is blockked up, can accomplish the clearance mediation through the structure of self, has saved the manpower.

Description

Concrete raw material classifying and screening device

Technical Field

The utility model relates to a concrete processing technology field especially relates to a concrete raw materials classifying screen material device.

Background

The concrete processing is divided into multiple steps of proportioning, stirring, forming and the like, wherein the ingredients are required to be screened before proportioning so as to screen out raw materials meeting the use regulation, and the quality of the ingredients plays a crucial role in the final forming effect of the concrete, so that the screening of the ingredients is significant for the concrete processing and manufacturing;

the existing concrete raw material screening device mainly has a vibrating screen type and a roller screen type, wherein the vibrating screen type is easy to cause the problem of screen hole blockage in the working process, the raw materials can not be effectively screened, unnecessary material consumption is generated, and the quality of the screened materials is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at not enough among the above-mentioned background art, provide a sieve separator that can automatic mediation when the shale shaker sieve mesh blocks up to solve the shale shaker among the prior art because of the sieve mesh blocks up, influence the technical problem of sieve material quality in the course of the work.

According to the utility model discloses an embodiment has adopted following technical scheme:

a concrete raw material grading screening device comprises a screening machine body, a case arranged on the surface of the screening machine body and used for providing power, and a feeding port arranged on the upper surface of the screening machine body and used for feeding;

the air guide cover is arranged on the lower surface of the air inlet fan;

the primary fixed sieve and the secondary fixed sieve are arranged in the material sieving machine body;

the upper surfaces of the first-stage fixed sieve and the second-stage fixed sieve are fixedly connected with a first-stage vibrating sieve and a second-stage vibrating sieve respectively through a plurality of springs;

the upper surfaces of the first-stage fixed sieve and the second-stage fixed sieve are respectively provided with a plurality of fixed rods;

the circle centers of the sieve pores on the first-stage vibrating sieve and the second-stage vibrating sieve and the circle center of the fixed rod are located on the same straight line, and the diameter of the fixed rod is smaller than that of the sieve pore corresponding to the fixed rod.

The air guide cover is in a horn shape, the area of the air guide cover is gradually increased from one end close to the air inlet fan to one end far away from the air inlet fan.

The surface fixed connection of one-level fixed sieve and second grade fixed sieve and sieve material machine body, there is the clearance between one-level shale shaker and second grade shale shaker and the sieve material machine body.

The diameter of the sieve holes on the first-stage fixed sieve is larger than that of the sieve holes on the first-stage vibrating sieve, and the diameter of the sieve holes on the second-stage fixed sieve is larger than that of the sieve holes on the second-stage vibrating sieve.

The springs are symmetrically arranged on the upper surface of the first-stage fixed screen relative to the central line of the first-stage fixed screen, and the springs are symmetrically arranged on the upper surface of the second-stage fixed screen relative to the central line of the second-stage fixed screen.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. provide the power of machine vibration through quick-witted case, after the start machine, send into the raw materials in to the sieve material machine, under normal operating condition, fixed sieve at different levels is because the sieve mesh is bigger than the shale shaker at different levels, so under this condition, the fixed sieve plays the effect of support, accomplish the sieve material by the shale shaker vibration, when the sieve mesh blocks up, shale shaker area of stress grow itself, under the dual function of gravity with the top air inlet fan of shale shaker itself, promote the shale shaker oppression spring and move down, make the dead lever on the fixed sieve release the jam, accomplish the mediation.

2. Through at the machine during operation, because the concrete raw materials need to be sprinkled water treatment in order to prevent dust pollution before the screening, humidity ratio is bigger, when the raw materials gets into the machine, the fan that admits air is continuous to blow the raw materials, has carried out preliminary drying process to the raw materials.

Drawings

FIG. 1 is a schematic structural diagram of a main body of a concrete raw material grading and screening device;

FIG. 2 is a right side cross-sectional view of a concrete raw material classifying screen apparatus;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the above drawings: 1. a screening machine body; 2. a chassis; 3. a feeding port; 4. an air inlet fan; 5. a first-stage vibrating screen; 6. a first-stage fixed sieve; 7. a secondary vibrating screen; 8. a secondary fixed sieve; 9. a spring; 10. a wind scooper; 11. and (5) fixing the rod.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1-3, as a preferred embodiment, the utility model provides a concrete raw material grading screening device, which comprises a screening machine body 1, a chassis 2 installed on the surface of the screening machine body 1 for providing power, and a feeding port 3 installed on the upper surface of the screening machine body 1 for feeding;

the air guide device also comprises an air inlet fan 4 arranged on the upper surface of the screening machine, and an air guide cover 10 is arranged on the lower surface of the air inlet fan 4;

the primary fixed sieve 6 and the secondary fixed sieve 8 are arranged in the material sieving machine body 1;

the upper surfaces of the first-stage fixed sieve 6 and the second-stage fixed sieve 8 are fixedly connected with a first-stage vibrating sieve 5 and a second-stage vibrating sieve 7 through a plurality of springs 9 respectively;

the upper surfaces of the first-stage fixed sieve 6 and the second-stage fixed sieve 8 are respectively provided with a plurality of fixed rods 11;

the circle centers of the sieve pores on the first-stage vibrating screen 5 and the second-stage vibrating screen 7 are positioned on the same straight line with the circle center of the fixed rod 11, and the diameter of the fixed rod 11 is smaller than that of the corresponding sieve pore.

In the above scheme, the machine case 2 provides the power for the machine vibration to drive the screening machine body 1 to vibrate, at the moment, the raw material can be fed into the screening machine, under the normal working condition, when the raw material enters the inside of the screening machine body 1, because the sieve mesh of the first-stage fixed sieve 6 is larger than the sieve mesh of the first-stage vibrating sieve 5, and the sieve mesh of the second-stage fixed sieve 8 is larger than the sieve mesh of the second-stage vibrating sieve 7, under the condition, the first-stage fixed sieve 6 and the second-stage fixed sieve 8 only play the role of a bracket, the vibrating sieves are supported by the springs 9, screening is completed by the step-by-step vibration of each-stage vibrating sieves, when the sieve meshes are blocked, because the sieve meshes are blocked, the stressed area of the vibrating sieves is enlarged, the quality of the vibrating sieves is changed, the stressed area of the wind blown by the upper air inlet fan 4 is enlarged, under the dual action of the gravity of the vibrating sieves and the wind power, the vibrating sieves are pushed to press the springs 9 to move downwards, and the fixed rod 11 arranged on the fixed sieve pushes out the blockage to complete dredging.

Preferably, the air guide cover 10 has a horn shape in which the area gradually increases from the end close to the intake fan 4 to the end far from the intake fan 4, and such a shape further amplifies the wind blown from the intake fan 4, thereby increasing the wind power and reducing the energy consumption.

As preferred, the fixed surface of the fixed sieve 6 of the first grade and the fixed sieve 8 of the second grade and the material screening machine body 1 is fixedly connected, there are clearances between the vibrating sieve 5 of the first grade and the vibrating sieve 7 of the second grade and the material screening machine body 1, the flexibility of the vibrating sieves of all grades is guaranteed, more flexible decline can be realized when the sieve pores are blocked, the vibrating frequency of the vibrating sieves of all grades can be increased, and the screening quality is improved.

Preferably, the diameter of the sieve holes on the first-stage fixed sieve 6 is larger than that of the sieve holes on the first-stage vibrating sieve 5, the diameter of the sieve holes on the second-stage fixed sieve 8 is larger than that of the sieve holes on the second-stage vibrating sieve 7, and the fixed sieve only plays a role of a bracket when the machine operates normally, so that the diameter of the sieve holes on the fixed sieve is larger than that of the sieve holes on the vibrating sieve, and the normal operation of the machine is not influenced.

Preferably, the springs 9 are symmetrically arranged on the upper surface of the first-stage fixed screen 6 relative to the central line of the first-stage fixed screen 6, and the springs 9 are symmetrically arranged on the upper surface of the second-stage fixed screen 8 relative to the central line of the second-stage fixed screen 8, so that the uniform stress of each stage of vibrating screen is ensured, and the vibrating screen cannot be biased to one side.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (5)

1. A concrete raw material grading screening device comprises a screening machine body (1), a case (2) which is arranged on the surface of the screening machine body (1) and used for providing power, and a feeding port (3) which is arranged on the upper surface of the screening machine body (1) and used for feeding; the method is characterized in that:

the air guide device is characterized by further comprising an air inlet fan (4) arranged on the upper surface of the screening machine body (1), wherein an air guide cover (10) is arranged on the lower surface of the air inlet fan (4);

the primary fixed sieve (6) and the secondary fixed sieve (8) are arranged in the material sieving machine body (1);

the upper surfaces of the primary fixed sieve (6) and the secondary fixed sieve (8) are fixedly connected with a primary vibrating sieve (5) and a secondary vibrating sieve (7) through a plurality of springs (9) respectively;

the upper surfaces of the primary fixed sieve (6) and the secondary fixed sieve (8) are respectively provided with a plurality of fixed rods (11);

the circle centers of the sieve pores on the first-stage vibrating screen (5) and the second-stage vibrating screen (7) and the circle center of the fixed rod (11) are located on the same straight line, and the diameter of the fixed rod (11) is smaller than that of the sieve pore corresponding to the fixed rod.

2. The concrete raw material grading and screening device as claimed in claim 1, wherein the air guiding cover (10) is in a horn shape with an area gradually increasing from one end close to the air inlet fan (4) to one end far away from the air inlet fan (4).

3. The concrete raw material grading and screening device as claimed in claim 1, wherein the primary fixed screen (6) and the secondary fixed screen (8) are fixedly connected with the surface of the screening machine body (1), and a gap is formed between the primary vibrating screen (5) and the secondary vibrating screen (7) and the screening machine body (1).

4. The concrete raw material classifying screen material device according to claim 1, wherein the diameter of the screen holes on the primary fixed screen (6) is larger than that of the screen holes on the primary vibrating screen (5), and the diameter of the screen holes on the secondary fixed screen (8) is larger than that of the screen holes on the secondary vibrating screen (7).

5. A concrete raw material classifying and screening device according to claim 1, wherein a plurality of said springs (9) are symmetrically installed on the upper surface of the primary fixed screen (6) about the center line of the primary fixed screen (6), and a plurality of said springs (9) are symmetrically installed on the upper surface of the secondary fixed screen (8) about the center line of the secondary fixed screen (8).

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