CN214183556U - Sand washing system for sand aggregate - Google Patents
Sand washing system for sand aggregate Download PDFInfo
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- CN214183556U CN214183556U CN202022318995.XU CN202022318995U CN214183556U CN 214183556 U CN214183556 U CN 214183556U CN 202022318995 U CN202022318995 U CN 202022318995U CN 214183556 U CN214183556 U CN 214183556U
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Abstract
The utility model discloses a sand washing system for sand and stone aggregates, which relates to the field of wet aggregate production and comprises sand washing equipment, a compressed air system, a water replenishing system and a wastewater treatment system, wherein three sections of sand washing pools are distributed side by side to form the sand washing equipment; the water replenishing system comprises a clean water tank, a clean water pump and a water replenishing pipeline, wherein the clean water tank is connected with the clean water pump and is communicated with the sand washing equipment through the water replenishing pipeline to supply water to each section of sand washing tank; the wastewater treatment system comprises a light wastewater pipe, a light wastewater pool, a light wastewater pump, a concentration pool and a concentrated wastewater pipe. The utility model can recover the fine sand in the wastewater to the maximum extent; the mud-sand separation efficiency is high, the device is suitable for a larger fluctuation range of the mixture, and the sand washing efficiency is improved; and the water consumption for sand washing can be reduced, and the burden of a subsequent wastewater treatment system is reduced.
Description
Technical Field
The utility model relates to a field of wet process aggregate production, concretely relates to grit aggregate washing system.
Background
At present, the inspection sieve used in the production of aggregate by a domestic wet method cannot separate sand from powder, and the sand needs to be washed by water to obtain clean sand. The common equipment for washing sand is a wheel type sand washing machine, the sand washing process is sand, and the powder mixture is added with water and passes through the first wheel type sand washing machine, the second wheel type sand washing machine, a cyclone separator and a dewatering screen to obtain clean sand. The sand washing process needs a large amount of water to separate out clean sand materials, so that the subsequent wastewater treatment scale is enlarged, and water resources are wasted. Meanwhile, the aggregate mining incoming material amount is unstable, the mixed material amount fluctuates in a large range, the sand washing capacity of the wheel type sand washer is exceeded in a short period, and the finished product cannot be washed cleanly, so that the product performance is influenced.
Overall, the prior art still has the following drawbacks:
1. the sand and the powder can not be effectively separated by only water washing;
2. the feeding amount of the wheel type sand washer is limited by the separation speed of washed sand and powder, so that the sand washing efficiency is influenced, and the wheel type sand washer cannot adapt to a larger fluctuation range of a mixture;
3. the water consumption for pure washing is large, which causes water resource waste and increases the burden of a subsequent wastewater treatment system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a sand washing system for sand and stone aggregates, which can recover fine sand in wastewater to the maximum extent; the mud-sand separation efficiency is high, the device is suitable for a larger fluctuation range of the mixture, and the sand washing efficiency is improved; and the water consumption for sand washing can be reduced, and the burden of a subsequent wastewater treatment system is reduced.
The purpose of the utility model is accomplished through following technical scheme: a sand washing system with sand and stone aggregate, comprising
The sand washing equipment comprises a plurality of sections of sand washing pools, wherein each section of sand washing pool is provided with a feeding end for introducing a mixture formed by mixing stone powder, sand and water, the bottom of each section of sand washing pool is provided with a discharging end for discharging cleaned sand, and a liquid level meter is arranged in each section of sand washing pool for monitoring the water level in real time;
the compressed air system comprises an air compressor, an air storage tank and a compressed air pipeline, wherein the air compressor is connected with the air storage tank, is communicated with the sand washing equipment through the compressed air pipeline, and is used for introducing compressed air into each section of sand washing pool;
the water replenishing system comprises a clean water tank, a clean water pump and a water replenishing pipeline, wherein the clean water tank is connected with the clean water pump and is communicated with the sand washing equipment through the water replenishing pipeline to supply water to each section of sand washing tank; and
the waste water treatment system comprises a light waste water pipe, a light waste water tank, a light waste water pump, a concentration tank and a concentrated waste water pipe, wherein each section of sand washing tank is communicated with the concentration tank through the concentrated waste water pipe and is used for discharging waste water after sand washing, the top of the concentration tank is communicated with the light waste water tank so that supernatant in the concentration tank can flow into the light waste water tank, each section of sand washing tank is also communicated with the light waste water tank through the light waste water pipe and is used for discharging light waste water after sand washing, and the light waste water tank is connected with the light waste water pump and is communicated with sand washing equipment through the light waste water pipe so as to return the light waste water into each section of sand washing tank.
According to a further technical scheme, the sand washing equipment comprises a first-section sand washing tank, a second-section sand washing tank and a third-section sand washing tank which are distributed side by side, the compressed air pipeline is branched into three paths, one path of compressed air pipeline is communicated with compressed air perforated pipes distributed on the side face of the first-section sand washing tank through an electric valve for air supply, the other path of compressed air pipeline is communicated with compressed air perforated pipes distributed on the side face of the second-section sand washing tank through an electric valve for air supply, and the other path of compressed air pipeline is communicated with compressed air perforated pipes distributed on the side face of the third-section sand washing tank through an electric valve for air supply.
As a further technical scheme, the water supplementing pipeline is branched into three paths, one path of water is supplied to the upper part of the first-section sand washing pool through an electric valve, the other path of water is supplied to the upper part of the second-section sand washing pool through an electric valve, and the other path of water is supplied to the upper part of the third-section sand washing pool through an electric valve.
A sand washing method using the system comprises the following steps:
1) introducing a mixture formed by mixing stone powder, sand and water into the feeding end of the first-section sand washing pool, opening a light wastewater pump and an electric valve on a light wastewater pipe communicated with the first-section sand washing pool, injecting water into the first-section sand washing pool until a liquid level meter displays a high water level, closing the electric valve and stopping feeding the mixture; simultaneously, feeding materials into the second-stage sand washing tank;
2) starting an air compressor to enable compressed air to enter an air storage tank, starting an electric valve which is arranged on a compressed air pipeline and communicated with a first-section sand washing tank, enabling the compressed air to enter the first-section sand washing tank through a compressed air perforated pipe, and fully mixing the mixture to finish primary sand washing;
3) after the primary sand washing is finished, adjusting an electric valve communicated with a section of sand washing pool on a compressed air pipeline to reduce air inflow so as to layer sand and powder; opening an electric valve on the concentrated wastewater pipe, which is communicated with the first-stage sand washing tank, discharging the generated muddy water into the concentration tank, and then closing the electric valve on the concentrated wastewater pipe;
4) opening an electric valve on a clean water pump and a water supply pipeline, which is communicated with the first-section sand washing pool, injecting water into the first-section sand washing pool until the liquid level meter displays a high water level, and closing the electric valve; meanwhile, an electric valve communicated with a section of sand washing pool on a compressed air pipeline is adjusted to increase air inflow and carry out secondary sand washing;
5) after the secondary sand washing is finished, an electric valve communicated with a section of sand washing pool on a compressed air pipeline is adjusted, so that the air inflow is reduced, and the sand and the powder are layered; opening an electric valve on the light wastewater pipe, which is communicated with the first section of sand washing tank, discharging the produced muddy water into the light wastewater tank, and then closing the electric valve on the light wastewater pipe; discharging the washed clean sand material through a discharge end at the bottom of the first section of sand washing tank to finish discharging; meanwhile, sand washing is started in the second sand washing tank, and feeding is started in the third sand washing tank, so that alternate operation is realized.
As a further technical scheme, supernatant generated after the sludge water in the concentration tank is concentrated and precipitated is discharged into the light wastewater tank, and the generated sludge is discharged from the concentration tank for subsequent treatment.
As a further technical scheme, the steps of feeding, sand washing and discharging of the second-stage sand washing tank and the third-stage sand washing tank are the same as those of the first-stage sand washing tank, and when sand washing is started after the feeding of the first-stage sand washing tank is finished, the feeding of the second-stage sand washing tank is started; when sand washing is started after the feeding of the second-stage sand washing tank is finished, feeding of the third-stage sand washing tank is started; and when the sand washing of the sand washing pool at one end is finished and then the sand washing pool is in the unloading stage, the sand washing pool at the second section is in the sand washing stage, and the sand washing pool at the third section is in the feeding stage.
The utility model has the advantages that: the fine sand in the wastewater can be recycled to the maximum extent, each sand washing tank independently carries out the whole sand washing process, the washed sand material is not influenced by subsequent feeding, and the sand washing is cleaner and quicker; the mud-sand separation efficiency is high, the device is suitable for a larger fluctuation range of the mixture, and the sand washing efficiency is improved; the utilization of the light wastewater reduces the water amount entering the concentration tank and shortens the concentration time; the gas washing can reduce the water consumption for sand washing and reduce the burden of a subsequent wastewater treatment system.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the device comprises a clean water tank 1, a clean water pump 2, an electric valve 3, a mixture 4, a first-stage sand washing tank 5, a second-stage sand washing tank 6, a third-stage sand washing tank 7, a sand material 8, a liquid level meter 9, an air compressor 10, an air storage tank 11, a compressed air pipeline 12, a water supplementing pipeline 13, a light wastewater pipe 14, a light wastewater tank 15, a light wastewater pump 16, a concentration tank 17, a concentrated wastewater pipe 18, a supernatant 19, concentrated sludge 20 and a compressed air perforated pipe 21.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in the attached drawing 1, the sand washing system for the gravel aggregate comprises sand washing equipment, a compressed air system, a water supplementing system and a wastewater treatment system, wherein the sand washing equipment comprises a first section of sand washing tank 5, a second section of sand washing tank 6 and a third section of sand washing tank 7 which are distributed side by side, each section of sand washing tank is provided with a feeding end for introducing a mixture 4 formed by mixing stone powder, sand and water, the bottom of each section of sand washing tank is provided with a discharging end for discharging cleaned sand 8, and each section of sand washing tank is internally provided with a liquid level meter 9 for monitoring the water level in real time. The compressed air system comprises an air compressor 10, an air storage tank 11 and a compressed air pipeline 12, wherein the air compressor 10 is connected with the air storage tank 11, is communicated with the sand washing equipment through the compressed air pipeline 12, and feeds compressed air into each section of sand washing pool; the compressed air pipeline 12 is branched into three paths, one path is communicated with the compressed air perforated pipes 21 distributed on the side surface of the first-stage sand washing tank 5 through the electric valve 3 for air supply, the other path is communicated with the compressed air perforated pipes 21 distributed on the side surface of the second-stage sand washing tank 6 through the electric valve 3 for air supply, and the other path is communicated with the compressed air perforated pipes 21 distributed on the side surface of the third-stage sand washing tank 7 through the electric valve 3 for air supply. The water supplementing system comprises a clean water tank 1, a clean water pump 2 and a water supplementing pipeline 13, wherein the clean water tank 1 is connected with the clean water pump 2 and is communicated with the sand washing equipment through the water supplementing pipeline 13 to supply water to each section of sand washing tank; the water supplementing pipeline 13 is branched into three paths, one path supplies water to the upper part of the first-section sand washing pool 5 through the electric valve 3, the other path supplies water to the upper part of the second-section sand washing pool 6 through the electric valve 3, and the other path supplies water to the upper part of the third-section sand washing pool 7 through the electric valve 3. The wastewater treatment system comprises a light wastewater pipe 14, a light wastewater pool 15, a light wastewater pump 16, a concentration pool 17 and a concentrated wastewater pipe 18, wherein each section of sand washing pool is communicated with the concentration pool 17 through the concentrated wastewater pipe 18 and is used for discharging sewage after sand washing, the top of the concentration pool 17 is communicated with the light wastewater pool 15 to allow supernatant liquid 19 in the concentration pool 17 to flow into the light wastewater pool 15, each section of sand washing pool is also communicated with the light wastewater pool 15 through the light wastewater pipe 14 and is used for discharging light wastewater after sand washing, the light wastewater pool 15 is connected with the light wastewater pump 16 and is communicated with sand washing equipment through the light wastewater pipe 14, and light wastewater flows back into each section of sand washing pool.
A sand washing method using the system comprises the following steps:
1) introducing a mixture 4 (the diameter of sand is greater than 0.075mm and the diameter of stone powder is less than 0.075mm) formed by mixing stone powder, sand and water into the feeding end of the first-stage sand washing pool 5, opening a light wastewater pump 16 and an electric valve 3 on a light wastewater pipe 14 communicated with the first-stage sand washing pool 5, injecting water into the first-stage sand washing pool 5 until a liquid level meter 9 shows a high water level, closing the electric valve 3 and stopping feeding of the mixture 4; simultaneously, feeding the second-stage sand washing tank 6;
2) starting an air compressor 10 to enable compressed air to enter an air storage tank 11, starting an electric valve 3 which is arranged on a compressed air pipeline 12 and communicated with a first-section sand washing tank 5 to enable the compressed air to enter the first-section sand washing tank 5 through a compressed air perforated pipe 21, fully mixing a mixture 4, enabling stone powder attached to the surface of sand to slide off and enter a water body, and layering under the disturbance of the compressed air to finish primary sand washing;
3) after the primary sand washing is finished, adjusting an electric valve 3 on a compressed air pipeline 12, which is communicated with the first-stage sand washing tank 5, to reduce the air inflow so as to layer the sand and the powder; opening an electric valve 3 on the concentrated wastewater pipe 18, which is communicated with the first-stage sand washing tank 5, discharging the generated muddy water into a concentration tank 17, and then closing the electric valve 3 on the concentrated wastewater pipe 18;
4) opening a clean water pump 2 and an electric valve 3 on a water supplementing pipeline 13, which is communicated with the first-stage sand washing tank 5, injecting water into the first-stage sand washing tank 5 until a liquid level meter 9 displays a high water level, and closing the electric valve 3; meanwhile, the electric valve 3 on the compressed air pipeline 12, which is communicated with the first sand washing tank 5, is adjusted to increase the air inflow and carry out secondary sand washing;
5) after the secondary sand washing is finished, adjusting an electric valve 3 on a compressed air pipeline 12, which is communicated with the first-stage sand washing tank 5, to reduce the air inflow so as to layer the sand and the powder; opening an electric valve 3 on the light wastewater pipe 14, which is communicated with the first-stage sand washing tank 5, discharging the generated muddy water into a light wastewater tank 15, and then closing the electric valve 3 on the light wastewater pipe 14; discharging the washed clean sand 8 through a discharge end at the bottom of the first section of sand washing tank 5 to finish discharging; meanwhile, the second sand washing tank 6 starts to wash sand, and the third sand washing tank 7 starts to feed, so that alternate operation is realized.
As a preferable technical scheme, supernatant liquid 19 generated after the sludge water in the concentration tank 17 is concentrated and precipitated is discharged into the light wastewater tank 15, and the generated sludge is discharged from the concentration tank 17 for subsequent treatment.
As a preferred technical scheme, the steps of feeding, sand washing and discharging of the second-stage sand washing tank 6 and the third-stage sand washing tank 7 are the same as those of the first-stage sand washing tank 5, and when sand washing is started after the feeding of the first-stage sand washing tank 5 is finished, the feeding of the second-stage sand washing tank 6 is started; when sand washing is started after the feeding of the second-stage sand washing tank 6 is finished, feeding of the third-stage sand washing tank 7 is started; when the sand washing of the sand washing pool 5 at one end is finished and then the discharging stage is carried out, the sand washing pool 6 at the second section is carried out at the sand washing stage, and the sand washing pool 7 at the third section is carried out at the feeding stage. The continuous alternate operation of the three sand washing tanks is realized.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (3)
1. The utility model provides a grit aggregate sand washing system which characterized in that: the method comprises the following steps:
the sand washing equipment comprises a plurality of sections of sand washing pools, wherein each section of sand washing pool is provided with a feeding end for introducing a mixed material (4) formed by mixing stone powder, sand and water, the bottom of each section of sand washing pool is provided with a discharging end for discharging cleaned sand (8), and each section of sand washing pool is internally provided with a liquid level meter (9) for monitoring the water level in real time;
the compressed air system comprises an air compressor (10), an air storage tank (11) and a compressed air pipeline (12), wherein the air compressor (10) is connected with the air storage tank (11), is communicated with the sand washing equipment through the compressed air pipeline (12), and is used for introducing compressed air into each section of sand washing pool;
the water replenishing system comprises a clean water tank (1), a clean water pump (2) and a water replenishing pipeline (13), wherein the clean water tank (1) is connected with the clean water pump (2) and is communicated with the sand washing equipment through the water replenishing pipeline (13) to supply water to each section of sand washing tank; and
the waste water treatment system comprises a light waste water pipe (14), a light waste water tank (15), a light waste water pump (16), a concentration tank (17) and a concentrated waste water pipe (18), wherein each section of sand washing tank is communicated with the concentration tank (17) through the concentrated waste water pipe (18) and is used for discharging waste water after sand washing, the top of the concentration tank (17) is communicated with the light waste water tank (15) to allow supernatant (19) in the concentration tank (17) to flow into the light waste water tank (15), each section of sand washing tank is also communicated with the light waste water tank (15) through the light waste water pipe (14) and is used for discharging light waste water after sand washing, and the light waste water tank (15) is connected with the light waste water pump (16) and is communicated with sand washing equipment through the light waste water pipe (14) and returns the light waste water into each section of sand washing tank.
2. The sand and stone aggregate sand washing system according to claim 1, wherein: the sand washing equipment comprises a first sand washing tank (5), a second sand washing tank (6) and a third sand washing tank (7), wherein the first sand washing tank, the second sand washing tank and the third sand washing tank are distributed side by side, a compressed air pipeline (12) is branched into three paths, one path of compressed air pipeline is communicated with a compressed air perforated pipe (21) arranged on the side face of the first sand washing tank (5) through an electric valve (3) for air supply, the other path of compressed air pipeline is communicated with a compressed air perforated pipe (21) arranged on the side face of the second sand washing tank (6) through an electric valve (3) for air supply, and the other path of compressed air perforated pipe (21) arranged on the side face of the third sand washing tank (7) through an electric valve (3) for air supply.
3. The sand and stone aggregate sand washing system according to claim 1, wherein: the water supplementing pipeline (13) is branched into three paths, one path supplies water to the upper part of the first section sand washing pool (5) through the electric valve (3), the other path supplies water to the upper part of the second section sand washing pool (6) through the electric valve (3), and the other path supplies water to the upper part of the third section sand washing pool (7) through the electric valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022318995.XU CN214183556U (en) | 2020-10-16 | 2020-10-16 | Sand washing system for sand aggregate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022318995.XU CN214183556U (en) | 2020-10-16 | 2020-10-16 | Sand washing system for sand aggregate |
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| CN214183556U true CN214183556U (en) | 2021-09-14 |
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| CN202022318995.XU Active CN214183556U (en) | 2020-10-16 | 2020-10-16 | Sand washing system for sand aggregate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112427138A (en) * | 2020-10-16 | 2021-03-02 | 日昌升建筑新材料设计研究院有限公司 | Sand washing system and method for sandstone aggregate |
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2020
- 2020-10-16 CN CN202022318995.XU patent/CN214183556U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112427138A (en) * | 2020-10-16 | 2021-03-02 | 日昌升建筑新材料设计研究院有限公司 | Sand washing system and method for sandstone aggregate |
| CN112427138B (en) * | 2020-10-16 | 2024-03-19 | 日昌升建筑新材料设计研究院有限公司 | Sand washing system and method for sand aggregates |
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