CN210425781U

CN210425781U - Concrete is with continuous screening of fine sand device that spin-dries

Info

Publication number: CN210425781U
Application number: CN201920469354.9U
Authority: CN
Inventors: 刘国正
Original assignee: Yiyang Zhengtu New Building Materials Co Ltd
Current assignee: Yiyang Zhengtu New Building Materials Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-04-28
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a concrete fine sand continuous screening and spin-drying device, which comprises an outer spin-drying rotary drum, wherein an inner spin-drying rotary drum is coaxially fixed in the outer spin-drying rotary drum; the side walls of the outer spin-drying rotary drum and the inner spin-drying rotary drum are arc-surface-shaped; a plurality of first sieve holes are formed in the side wall of the outer spin-drying rotary drum, and a plurality of second sieve holes are formed in the side wall of the inner spin-drying rotary drum; the aperture of the second sieve pore is larger than that of the first sieve pore. The utility model discloses simple structure, convenient to use can spin-dry most of moisture in the required sand grain through centrifugal mode to the sand grain can be fast dried or oven-dry and saved the time, and improved the utilization ratio in place greatly, realized the automatic discharging of required sand grain simultaneously, realized serialization production, saved the manual work.

Description

Concrete is with continuous screening of fine sand device that spin-dries

Technical Field

The utility model belongs to the building field especially relates to a concrete is with continuous screening of fine sand device that spin-dries.

Background

The fine sand is a raw material for manufacturing concrete, the fine sand needs to be cleaned by a fine sand cleaning machine before use so as to clean soil in the fine sand, the fine sand is screened when the fine sand is put through, sand grains with qualified granularity are screened out, and then the fine sand is dried in the sun or dried for later use. In particular to a device shown in patent 201720788089.1, which is a fine sand reclaimer for concrete production. It has problems in that: firstly, fine sand with proper particle size at the part to be screened usually needs to be provided with at least two layers of screens, the screening needs to be stopped after a period of time, the fine sand on the drying net is cleaned, the screening can be continued, continuous production cannot be realized, otherwise, the screens are crushed due to too much sand grains, and the subsequent sand is organized to descend. II, secondly: the water content of the cleaned sand is very high, so the time required for drying or baking is very long, a large area of a factory building is occupied for a long time, and the efficiency is not high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a concrete is with continuous screening device that spin-dries of fine sand. The utility model discloses simple structure, convenient to use can spin-dry most of moisture in the required sand grain through centrifugal mode to the sand grain can be fast dried or oven-dry and saved the time, and improved the utilization ratio in place greatly, realized the automatic discharging of required sand grain simultaneously, realized serialization production, saved the manual work.

In order to achieve the above technical effects, the technical scheme of the utility model is that:

a fine sand continuous screening and spin-drying device for concrete comprises an outer spin-drying rotary drum, wherein an inner spin-drying rotary drum is coaxially fixed in the outer spin-drying rotary drum; the side walls of the outer spin-drying rotary drum and the inner spin-drying rotary drum are arc-surface-shaped; a plurality of first sieve holes are formed in the side wall of the outer spin-drying rotary drum, and a plurality of second sieve holes are formed in the side wall of the inner spin-drying rotary drum; the aperture of the second sieve pore is larger than that of the first sieve pore; the top of the outer spin-drying rotary drum is lower than that of the inner spin-drying rotary drum; an inner shell is arranged outside the outer spin-drying rotary drum, a middle shell is arranged outside the inner shell, and an outer shell is arranged outside the middle shell; the top of the middle shell is positioned between the top of the inner spin-drying rotary drum and the outer spin-drying rotary drum, and a first inclined baffle matched with the outer spin-drying rotary drum is formed in the middle shell in an inward protruding mode; the top of the outer shell is higher than the inner spin-drying rotary drum and a baffle matched with the inner spin-drying rotary drum is formed in an inward convex mode; the inner shell is connected with a rotating device through a support rod, and the rotating device is connected with the outer spin-drying rotary drum; the bottom of the inner shell is communicated with a water delivery pipe; a first wedge-shaped part is formed on the middle shell, a second wedge-shaped part is formed on the lower part of the outer shell, and a second discharge hole is formed at the bottom of the second wedge-shaped part; a first discharge hole is formed in the first wedge-shaped part after the first wedge-shaped part penetrates through the side wall of the second wedge-shaped part; an inclined guide plate is arranged above the inner spin-drying rotary drum, and a tap water pipe is arranged above the inclined guide plate.

In a further improvement, the rotating device is a motor.

In a further improvement, a second inclined baffle matched with the outer spin-drying rotary drum is formed at the top of the inner shell.

In a further improvement, the water conveying pipe is provided with a first valve.

In a further improvement, a second valve is arranged on the tap water pipe.

The utility model has the advantages that;

can spin-dry most moisture in the required sand grain through centrifugal mode to the sand grain can be dried in the sun fast or dry and save the time, and improved the utilization ratio in place greatly, realized the automatic discharging of required sand grain simultaneously, realized serialization production, saved the manual work.

Drawings

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

Detailed Description

The technical solution of the present invention will be described in detail with reference to the following embodiments and accompanying drawings.

Example 1

The fine sand continuous screening and drying device for concrete shown in figure 1 comprises an outer drying rotary drum 1, wherein an inner drying rotary drum 2 is coaxially fixed in the outer drying rotary drum 1; the side walls of the outer spin-drying rotary drum 1 and the inner spin-drying rotary drum 2 are arc-surface-shaped; a plurality of first sieve holes are formed in the side wall of the outer spin-drying rotary drum 1, and a plurality of second sieve holes are formed in the side wall of the inner spin-drying rotary drum 2; the aperture of the second sieve pore is larger than that of the first sieve pore; the top of the outer spin-drying rotary drum 1 is lower than the top of the inner spin-drying rotary drum 2; an inner shell 3 is arranged outside the outer spin-drying rotary drum 1, a middle shell 4 is arranged outside the inner shell 3, and an outer shell 5 is arranged outside the middle shell 4; the top of the middle shell 4 is positioned between the top of the inner spin-drying rotary drum 2 and the outer spin-drying rotary drum 1, and a first inclined baffle 6 matched with the outer spin-drying rotary drum 1 is formed in the top of the middle shell 4 in an inward protruding mode; the top of the outer shell 5 is higher than the inner spin-drying rotary drum 2 and a baffle 7 matched with the inner spin-drying rotary drum 2 is formed in an inward convex mode; the inner shell 3 is connected with a rotating device 8 through a support rod 16, and the rotating device 8 is connected with the outer spin-drying rotary drum 1; the bottom of the inner shell 3 is communicated with a water delivery pipe 9; a first wedge-shaped part 10 is formed at the middle shell 4, a second wedge-shaped part 11 is formed at the bottom of the outer shell 5, and a second discharge hole 13 is formed at the bottom of the second wedge-shaped part 11; the first wedge part 10 penetrates through the side wall of the second wedge part 11 and then is formed with a first discharge hole 12; an inclined guide plate 14 is arranged above the inner spin-drying rotary drum 2, and a tap water pipe 15 is arranged above the inclined guide plate 14.

The rotating means 8 is a motor. A second inclined baffle 17 is formed at the top of the inner casing 3 to be engaged with the outer spin-drying drum 1. The water pipe 9 is provided with a first valve 18. A second valve 19 is mounted on the tap water pipe 15.

The utility model discloses a use method as follows: firstly, fine sand to be cleaned is placed on the inclined guide plate 14, then a tap water pipe is opened, the water gradually washes the fine sand down and falls into the inner spin-drying rotary drum 2, then the motor rotates, the fine sand and the water which are smaller than the second sieve hole are thrown into the outer spin-drying rotary drum 1 through the second sieve hole by centrifugal force, the outer spin-drying rotary drum 1 throws the silt and the water which are smaller than the first sieve hole into the inner shell 3 and flow out through the water conveying pipe 9, and the silt and the water are conveyed to a sedimentation tank or other filtering devices to filter out residual fine sand. The fine sand intercepted in the outer spin-drying rotary drum 1 is located between the second sieve holes and the first sieve holes, namely the fine sand with the required particle size is located between the second sieve holes and the first sieve holes, gradually ascends along the arc-shaped side wall of the outer spin-drying rotary drum 1 along with centrifugal force and is thrown out, then enters the middle shell 4 and flows out of the first discharge hole 12 after being blocked by the first inclined baffle 6, is transported away after being received by a transport vehicle or a conveyor belt, and the fine sand larger than the required particles gradually ascends along the arc-shaped side wall of the inner spin-drying rotary drum 2 and then enters the outer shell 5 to leak out through the second discharge hole 13 and is also transported away by the corresponding transport vehicle or the corresponding conveyor belt.

By the mode, most of moisture in the needed sand grains can be dried in a centrifugal mode, so that the sand grains can be dried in the sun or in the oven quickly, the time is saved, the utilization rate of the field is greatly improved, meanwhile, the automatic discharging of the needed sand grains is realized, the continuous production is realized, and the labor is saved.

The above-mentioned is only a concrete direction embodiment of the utility model, nevertheless the utility model discloses a design concept is not limited to this, and all utilize this design right the utility model discloses carry out immaterial change, all should belong to the action of infringing the scope of protection of the utility model.

Claims

1. A fine sand continuous screening and spin-drying device for concrete comprises an outer spin-drying rotary drum (1), and is characterized in that an inner spin-drying rotary drum (2) is coaxially fixed in the outer spin-drying rotary drum (1); the side walls of the outer spin-drying rotary drum (1) and the inner spin-drying rotary drum (2) are arc-surface-shaped; a plurality of first sieve holes are formed in the side wall of the outer spin-drying rotary drum (1), and a plurality of second sieve holes are formed in the side wall of the inner spin-drying rotary drum (2); the aperture of the second sieve pore is larger than that of the first sieve pore; the top of the outer spin-drying rotary drum (1) is lower than the top of the inner spin-drying rotary drum (2); an inner shell (3) is arranged outside the outer spin-drying rotary drum (1), a middle shell (4) is arranged outside the inner shell (3), and an outer shell (5) is arranged outside the middle shell (4); the top of the middle shell (4) is positioned between the top of the inner spin-drying rotary drum (2) and the outer spin-drying rotary drum (1), and a first inclined baffle (6) matched with the outer spin-drying rotary drum (1) is formed in the top of the middle shell (4) in an inward protruding mode; the top of the outer shell (5) is higher than the inner spin-drying rotary drum (2) and a baffle (7) matched with the inner spin-drying rotary drum (2) is formed in an inward convex mode; the inner shell (3) is connected with a rotating device (8) through a support rod (16), and the rotating device (8) is connected with the outer spin-drying rotary drum (1); the bottom of the inner shell (3) is communicated with a water delivery pipe (9); a first wedge-shaped part (10) is formed at the lower part of the middle shell (4), a second wedge-shaped part (11) is formed at the lower part of the outer shell (5), and a second discharge hole (13) is formed at the bottom of the second wedge-shaped part (11); the first wedge-shaped part (10) penetrates through the side wall of the second wedge-shaped part (11) and then is formed with a first discharge hole (12); an inclined guide plate (14) is arranged above the inner spin-drying rotary drum (2), and a tap water pipe (15) is arranged above the inclined guide plate (14).

2. A dry device for continuously screening fine sand for concrete according to claim 1, characterized in that said rotating means (8) is an electric motor.

3. A continuous screening and spin-drying device for fine sand for concrete according to claim 1, characterized in that a second inclined baffle (17) cooperating with the outer spin-drying drum (1) is formed on top of said inner casing (3).

4. The fine sand continuous screening and spin-drying device for concrete according to claim 1, wherein a first valve (18) is installed on the water pipe (9).

5. A dry-extraction device for continuously screening fine sand for concrete according to claim 1, characterised in that said tap water pipe (15) is provided with a second valve (19).