CN215085496U

CN215085496U - Grit piece-rate system of concrete production usefulness

Info

Publication number: CN215085496U
Application number: CN202120605299.9U
Authority: CN
Inventors: 王海贵; 丁少春; 马明江
Original assignee: Ningxia Saima Kejin Concrete Co ltd
Current assignee: Ningxia Saima Kejin Concrete Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-12-10
Anticipated expiration: 2031-03-25

Abstract

The application discloses a sand-stone separation system for concrete production, a screen machine is arranged at the bottom of a guide chute, washing water is firstly subjected to first-stage separation through the screen machine, stones and sand in the washing water are separated through a first layer screen and a second layer screen of the screen machine, the residual slurry after passing through the second layer screen is sent to a slurry storage tank through a screw conveyor, a stirrer is positioned at the upper part of the slurry storage tank, a stirring rod of the stirrer is inserted into the slurry storage tank, then secondary separation is carried out through a suction filter, the filtered slurry is sent to a ramp sedimentation tank, three-stage separation is carried out through the ramp sedimentation tank by utilizing different densities of the slurry and the water, then the slurry is drained to a clarification water tank through a first ditch and is guided to a slurry sedimentation collection tank through a second ditch, then the stones, the sand, the slurry and the water in the washing water can be separated, the cyclic use of the washing materials in the water and the cyclic use of the water are realized, avoiding environmental pollution and reducing resource waste.

Description

Grit piece-rate system of concrete production usefulness

Technical Field

The application relates to the field of mine engineering, in particular to a sand-stone separation system for concrete production.

Background

Commercial concrete is the most important material in civil engineering and construction, and with the increasing expansion of building construction scale, the reinforced commercial concrete structure becomes the main body of the building structure, so that the production of the pre-stirred commercial concrete is rapidly developed, and the problem that the commercial concrete is used and produced in large quantity is the washing water treatment of commercial concrete equipment becomes a big problem which troubles commercial concrete stations.

The washing water of the washing equipment contains cement paste, aggregate and impurities, additives and the like brought by the aggregate, from the viewpoint of environmental protection, the water for washing the cement mortar or the commercial concrete has strong alkalinity and higher pH value, can pollute the environment by random discharge, and can cause resource waste by directly discharging the water, the cement paste and the aggregate.

Therefore, the problem that the prior art personnel urgently need to solve is how to separate cement paste, aggregate and impurities, additives and other substances brought by the aggregate contained in the washing water, and further avoid environmental pollution and resource waste caused by directly discharging the washing water.

Practical new content

The application provides a grit piece-rate system of concrete production usefulness has solved among the prior art direct environmental pollution and the wasting of resources problem that leads to washing water emission.

In order to solve the technical problem, the present application provides a sand and stone separation system for concrete production, which comprises

The device comprises a guide chute and a slurry storage tank, wherein a screen machine is arranged at the bottom of the guide chute, the screen machine comprises a first layer screen and a second layer screen from top to bottom, the bottom of the screen machine is connected with a screw conveyor, the discharge end of the screw conveyor is located in the slurry storage tank, a stirrer is arranged on the slurry storage tank, a stirring rod of the stirrer is located in the slurry storage tank, one side of the slurry storage tank is provided with a suction filter, the water inlet of the suction filter extends into the slurry storage tank, the water outlet of the suction filter is communicated with a ramp sedimentation tank through a first ditch, the ramp sedimentation tank is communicated with a clarification tank through a second ditch, and the ramp sedimentation tank is communicated with a slurry collection tank through a third ditch.

Preferably, the cross-sectional shape of the material guide chute is a trumpet shape.

Preferably, a first belt conveyor is further arranged at the outlet of the first layer screen.

Preferably, the discharge end of the first belt conveyor is also communicated with a stone storage tank.

Preferably, a second belt conveyor is further connected to the outlet of the second layer of screen mesh.

Preferably, the discharge end of the second belt conveyor is also communicated with a sand grain groove.

Preferably, the screw conveyor is a screw conveyor.

Preferably, the top of the mud collecting tank is also provided with a stirrer, and one end of the stirrer extends to the stirring tank.

Preferably, the agitator is a propeller agitator.

Preferably, the bottom of the ramp settler is at the same level as the bottom of the clarifier.

Compared with the prior art, the utility model provides a grit piece-rate system for concrete production, install the screen cloth machine in the bottom of baffle box, wash water carries out first grade separation through the screen cloth machine earlier, through the first layer screen cloth of screen cloth machine will wash the aquatic stone and separate out, through the second floor screen cloth of screen cloth machine will wash the aquatic sand grain separation, the mud that remains behind the second floor screen cloth is sent to the mud holding tank through screw conveyer, the agitator is located mud holding tank upper portion, the puddler of agitator inserts in the mud holding tank, utilize the puddler can keep the liquidity of the mud in the mud holding tank, increase the effect of next grade separation, carry out second grade separation through the suction filter, separate impurity and the mud in the mud, the mud after the filtration is sent to the ramp sedimentation tank through first ditch, utilize the density difference of mud and water, carry out tertiary separation through the ramp sedimentation tank, mud deposits to the bottom of ramp sedimentation tank, and clear water is in the upper portion of mud, through second ditch drainage to clarification pond, the mud that the ramp sedimentation tank bottom is sunken leads to the mud through the third ditch in depositing the collecting pit, and then can separate stone, sand grain, mud and the water of washing aquatic, realized the used circulation of the material of washing aquatic and the used circulation of water, avoid the polluted environment and reduce the wasting of resources.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.

FIG. 1 is a schematic structural view of a sand-rock separation system for concrete production according to a new embodiment of the present invention;

FIG. 2 is a schematic structural view of a slurry storing tank according to the new embodiment of the present invention;

FIG. 3 is a schematic view showing the connection of a ramp clarifier, a clarification tank and a slurry collecting tank according to the new embodiment of the present invention;

FIG. 4 is a schematic structural view of a suction filter according to a new embodiment of the present invention;

fig. 5 is a schematic structural diagram of a screening machine according to a new embodiment of the present invention;

fig. 6 is a schematic structural view of a screw conveyor according to a new embodiment of the present invention;

in the figure, 1 a guide chute, 01 a ground, 2 a screen machine, 3 a screw conveyor, 4 a first belt conveyor, 5 a second belt conveyor, 6 a slurry storage tank, 7 a stirrer, 8 a stirring rod, 9 a suction filter, 10 a ramp sedimentation tank, 11 a first ditch, 12 a second ditch, 13 a third ditch, 14 a clear water tank, 15 a slurry collection tank, 16 a driving device, 17 a suction filter fixing seat, 18 a water inlet, 19 a water outlet, 20 a suction filter bearing seat, 21 a stone storage tank, 22 a sand grain tank, 23 a stirrer, 24 a first layer of screen mesh, 25 a second layer of screen mesh, 26 a feeding hole, 27 a first discharging hole, 28 a second discharging hole and 29 a third discharging hole.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.

The core of this application is to provide a grit piece-rate system of concrete production usefulness, can solve the problem of the grit separation of commercial concrete equipment washing water among the prior art.

Fig. 1 is a schematic view of a sand-stone separation system for concrete production provided by the new embodiment of the present invention, fig. 2 is a schematic view of a structure of a slurry storage tank provided by the new embodiment of the present invention, fig. 3 is a schematic view of a position of a ramp clarification tank and a clarification water tank provided by the new embodiment of the present invention, fig. 4 is a schematic view of an installation of a suction filter provided by the new embodiment of the present invention, fig. 5 is a schematic view of a structure of a screen machine provided by the new embodiment of the present invention, fig. 6 is a schematic view of a structure of a screw conveyer provided by the new embodiment of the present invention, including:

guide chute 1 and slurry storage tank 6, the bottom of guide chute 1 is provided with screen cloth machine 2, screen cloth machine 2 is from last to including first layer screen cloth 24 and second floor screen cloth 25 down, 2 bottoms of screen cloth machine are connected with screw conveyer 3, screw conveyer 3's discharge end is located slurry storage tank 6, be provided with agitator 7 on the slurry storage tank 6, agitator 7's puddler 8 is located slurry storage tank 6, one side of slurry storage tank 6 is provided with suction filter 9 and suction filter 9's water inlet 18 extends to in slurry storage tank 6, suction filter 9's delivery port 19 has ramp sedimentation tank 10 through first ditch 11 intercommunication, ramp sedimentation tank 10 has clarification tank 14 through second ditch 12 intercommunication, ramp sedimentation tank has mud collection pond 15 through third ditch 13 intercommunication.

In this embodiment, the concrete mixer stops to vehicle parking position A department, emptys the wash water to baffle box 1 in, and the shape of baffle box 1 sets up to tubaeform, and tubaeform is favorable to the smooth grit piece system that gets into concrete production usefulness of wash water to can reduce the mud solidification caking of wash water in baffle box 1. In the actual design, the material guiding chute 1 is located underground, the opening of the material guiding chute 1 is flush with the ground 01, and similarly, the screening machine 2 is also located underground, the installation of the screening machine 2 can be realized by arranging an installation pit underground, the screening machine 2 is provided with a sealed shell and is provided with a feeding hole 26 and three discharging holes, namely a first discharging hole 27, a second discharging hole 28 and a third discharging hole 29, and a first layer of screen 24 and a second layer of screen 25 are arranged from top to bottom, a feed inlet 26 of the screen 2 is connected with the bottom of the guide chute 1 and is connected in a welding manner, the screen 2 is arranged to form an included angle with the horizontal plane and is inclined to the directions of the first discharge port 27 and the second discharge port 28, so that the separated materials can be conveniently discharged, in practical use, the screening machine 2 is a vibrating type screening machine, and the specific structure and the working principle can be seen in the prior art. According to the definition of concrete in civil engineering, aggregate with the particle size larger than 4.75mm is called 'stone', aggregate with the particle size between 0.15mm and 4.75mm is called 'sand grain', a screen mesh with the 4-mesh specification on the market is adopted as a first layer screen mesh 24 of the screen mesh machine 2 for separating the stone, when the screen mesh machine is actually used, a first discharge port 27 is arranged on the side wall of the screen mesh machine 2, the first discharge port 27 is positioned above the first layer screen mesh 24 or is flush with the plane where the first layer screen mesh 24 is positioned, a first belt conveyor 4 is communicated with the first discharge port 27, the first discharge port 27 is required to be arranged so that the stone separated by the first layer screen mesh 24 can smoothly enter the first belt conveyor 4, and the stone conveyed by the first belt conveyor 4 can be stored through a stone storage groove 21; the second layer of screen mesh 25 of the screen machine 2 adopts a screen mesh with a 100-mesh specification on the market for separating sand grains, when in actual use, a second discharge hole 28 is formed in the side wall of the screen machine 2, the second discharge hole 28 is positioned above the second layer of screen mesh 25 or is flush with the plane where the second layer of screen mesh 25 is positioned, a second belt conveyor 5 is communicated with the second discharge hole 28, the second discharge hole 28 is required to be arranged in such a way that the sand grains separated by using the second layer of screen mesh 25 can smoothly enter the second belt conveyor 5, and stones conveyed by the second belt conveyor 5 can be stored through a sand grain groove 22; the first belt conveyor 4 and the second belt conveyor 5 are driven by a commercially available drive. The third discharge port 29 on the screen machine 2 is connected with the feed port of the screw conveyor 3 in a welding mode, the screw conveyor 3 is positioned at the bottom of the screen machine 2, and the screw conveyor 3 conveys the slurry passing through the two layers of screens to the slurry storage tank 6 through the discharge end. Preferably, the screw conveyer 3 is a screw conveyer, and the screw conveyer 3 has a simple structure, is convenient to install, maintain and handle faults, and has a good sealing effect during normal operation.

The slurry storage tank 6 is provided with a stirrer 7, the stirrer 7 is a rotary paddle type stirrer, a rotating shaft of the rotary paddle type stirrer can be vertically inserted into the slurry storage tank 6, and at the moment, a liquid flow circulation loop is asymmetric, so that turbulence can be increased, and solidification caused by slurry liquid level depression can be prevented. The stirring rod 8 of the stirrer 7 is inserted into the slurry storage tank 6, and the slurry in the slurry storage tank 6 can be kept to have fluidity by stirring of the stirring rod 8, so that solidified slurry is not generated, and the working efficiency and the filtering effect of the suction filter 9 for second-stage separation are facilitated. The suction filter 9 is installed on one side of the slurry storage tank 6 through a suction filter base 17, a water inlet 18 of the suction filter 9 is connected with the bottom of the slurry storage tank 6, slurry is pumped to the first ditch 11 through a water outlet 19 of the suction filter 9, the slurry flows into the ramp sedimentation tank 10 through the first ditch 11, the suction filter 9 can further filter the slurry, other impurities in the slurry are filtered into the slurry storage tank 6, the quality of clean water and the slurry separated by the third-stage separation is improved, and the application range of the separated clean water and the slurry is expanded.

The upper part of the ramp sedimentation tank 10 is connected with a second ditch 12, and the second ditch 12 drains the clean water in the ramp sedimentation tank 10 to a clarification water tank 14; the bottom of the slope sedimentation tank 10 is connected with a third ditch 13, and the third ditch 13 leads the mud at the bottom of the slope sedimentation tank 10 to a mud collecting tank 15.

Preferably, a stirrer 23 is further provided on the top of the slurry collecting tank 15, and one end of the stirrer 23 extends to the slurry collecting tank 15, and the stirrer 23 is provided to prevent the slurry from being layered and solidified in the slurry collecting tank 15, so that the slurry can be easily transported while being used again.

Preferably, the bottom of the ramp settler 10 is at the same level as the bottom of the clarifier 14, which reduces the amount of construction work and time, and saves costs.

The application provides a grit separation system for concrete production, install the screen cloth machine in the bottom of baffle box, wash water carries out first grade separation through the screen cloth machine earlier, wash the aquatic stone separation of aquatic through the first layer screen cloth of screen cloth machine, wash the aquatic sand grain separation of aquatic through the second layer screen cloth of screen cloth machine, the surplus mud after the second layer screen cloth is sent to the mud holding tank through screw conveyer, the agitator is located mud holding tank upper portion, the puddler of agitator inserts in the mud holding tank, utilize the puddler can keep the liquidity of the mud in the mud holding tank, increase the effect of second grade separation, carry out second grade separation through suction filter, separate impurity and mud in the mud, the mud after the filtration is sent to the ramp sedimentation tank through first ditch, utilize the density difference of mud and water, separate through the ramp sedimentation tank, mud deposits to the bottom of ramp sedimentation tank, and clear water is in the upper portion of mud, leads to the clarified water pond through the second ditch, and the mud that the ramp sedimentation tank bottom was sunken leads to the mud through the third ditch in depositing the collecting pit, and then can will wash the stone, sand grain, mud and the water separation of aquatic, has realized the used repeatedly of the aquatic material of washing and the used repeatedly of water, avoids polluting the environment and reduces the wasting of resources.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.

Claims

1. A sand and stone separation system for concrete production, comprising:

2. The sand separation system for concrete production according to claim 1, wherein the cross-sectional shape of the guide chute is a trumpet shape.

3. The sand separation system for concrete production according to claim 1, wherein a first belt conveyor is further provided at the outlet of the first screen.

4. The sand and stone separation system for concrete production according to claim 3, wherein the discharge end of the first belt conveyor is further communicated with a stone storage tank.

5. The sand separation system for concrete production according to claim 1, wherein a second belt conveyor is further connected to the outlet of the second screen.

6. The sand and stone separation system for concrete production according to claim 5, wherein the discharge end of the second belt conveyor is further communicated with a sand grain tank.

7. The sand separation system for concrete production of claim 1, wherein the screw conveyor is a screw conveyor.

8. A sand and stone separation system for concrete production according to claim 1 wherein a mixer is also provided on the top of the slurry collection tank and one end of the mixer extends into the mixing tank.

9. A sand separation system for concrete production according to claim 1 wherein the agitator is a rotary paddle agitator.

10. The sand separation system for concrete production according to any one of claims 1 to 9, wherein the bottom of the ramp sedimentation tank is located at the same level as the bottom of the clarification tank.