CN113230703A - Sand filling construction method for V-shaped filter tank of water treatment plant - Google Patents
Sand filling construction method for V-shaped filter tank of water treatment plant Download PDFInfo
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- CN113230703A CN113230703A CN202110512929.2A CN202110512929A CN113230703A CN 113230703 A CN113230703 A CN 113230703A CN 202110512929 A CN202110512929 A CN 202110512929A CN 113230703 A CN113230703 A CN 113230703A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
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Abstract
本发明提供了一种净水厂V型滤池填砂施工方法，属于V型滤池填砂施工领域。其技术方案为：包括以下步骤：石英砂进场、制作混合水箱、填砂管路敷设、反洗管路检查、石英砂装填、水循环回收和后续滤池填砂。本发明的有益效果为：本发明能够实现V型滤池石英砂滤料的快速装填，并实现水资源循环利用，提高了施工效率的同时，还节约了水资源。The invention provides a sand filling construction method for a V-shaped filter tank in a water purification plant, and belongs to the field of sand filling construction for the V-shaped filter tank. The technical scheme includes the following steps: entering quartz sand, making a mixed water tank, laying sand filling pipelines, checking backwashing pipelines, filling quartz sand, recycling water, and filling sand in subsequent filter tanks. The beneficial effects of the invention are as follows: the invention can realize the rapid filling of the quartz sand filter material of the V-shaped filter tank, realize the recycling of water resources, improve the construction efficiency and save the water resources.
Description
Technical Field
The invention relates to the field of sand filling construction of V-shaped filter tanks, in particular to a sand filling construction method of a V-shaped filter tank of a water treatment plant.
Background
At present, along with the vigorous development of the environmental protection water service industry, the environmental protection water service engineering of urban water purification plants and sewage treatment plants is increased year by year, the environmental protection water service engineering is provided with V-shaped filter tanks, the V-shaped filter tanks are rapid filter tanks for filtering with constant water level, water inlet grooves on two sides of each tank are in a V shape, an ultrasonic water level automatic control device in each tank can adjust a water outlet clean water valve, the valve can automatically adjust the opening degree according to the height of the water level in each tank, the water level in each tank is constant, single-layer sand filter materials are used in the V-shaped filter tanks, the common sand filter materials are quartz sand, the engineering of the environmental protection water service project is short, and how to rapidly fill the quartz sand in the V-shaped filter tanks becomes an important factor influencing the construction progress of the engineering.
Disclosure of Invention
The invention aims to provide a sand filling construction method for a V-shaped filter tank of a water treatment plant, which can realize quick filling of a quartz sand filter material of the V-shaped filter tank, realize water resource recycling, improve construction efficiency and save water resources.
The invention is realized by the following measures:
a sand filling construction method for a V-shaped filter tank of a water treatment plant is characterized by comprising the following steps:
(1) feeding quartz sand into a field: planning a quartz sand pre-storage site, determining the size of the site according to the quartz sand loading amount in the filter, wherein the capacity of 2 filters needs to be stored in the site so as to realize flow process, and simultaneously ensuring that the distance between the quartz sand storage site and the V-shaped filter is within 50 meters so as to reduce the on-way resistance loss of a conveying pipeline;
(2) manufacturing a mixed water tank: welding the simple water tank by using a steel plate, wherein the upper part of the simple water tank is not sealed, and laying a water tank water replenishing pipeline to obtain a mixed water tank;
(3) laying a sand filling pipeline: selecting a delivery water pump with a corresponding lift according to the height of a filter chamber window, then communicating the feeding end of the delivery water pump with the interior of a mixed water tank through a feeding pipeline, connecting the feeding end of the delivery water pump with the delivery pipeline through an elbow, laying the delivery pipeline to the filter chamber along the outer wall of the filter chamber, entering the filter chamber through the window, simultaneously installing a sewage pump with a corresponding lift in a backflow regulating tank, and communicating the sewage pump with the mixed water tank;
(4) and (3) backwashing pipeline inspection: closing a valve of a primary filtration pipeline of the V-shaped filter tank, opening a valve of a back flushing pipeline, and confirming that a pipeline from the filter tank to the backflow regulating tank is smooth;
(5) filling quartz sand: conveying water into a mixing water tank through a water replenishing pipeline, simultaneously pouring quartz sand into the mixing water tank to be mixed with the water, pumping the quartz sand and the water in the mixing water tank into a filter tank through the conveying water pump in the step (3), filtering the quartz sand and the water through a filter head of the filter tank, allowing the water to enter a back flushing pipeline, and allowing the quartz sand to remain in the sand filter tank;
(6) and (3) water circulation recovery: after the water level in the backflow regulating reservoir reaches 1 meter, a sewage pump at the backflow regulating reservoir is started to convey water in the backflow regulating reservoir to the mixed water tank, and at the moment, a water replenishing pipeline at the mixed water tank can be closed to realize the recycling of the mixed water;
(7) filling sand in a subsequent filter tank: and after the first filter tank finishes sand filling, closing the conveying water pump, extending the conveying pipeline to a second water tank, closing a back flushing pipeline valve of the first water tank, opening a back flushing pipeline valve of the second water tank, and opening the conveying water pump to start sand filling of the second water tank.
The invention has the following specific characteristics:
the conveying water pump is a horizontal sewage pump.
The water replenishing pipeline is made of PVC pipes, and the diameter of the water replenishing pipeline is DN 65.
The angle of the elbow is 45 degrees to reduce the resistance loss of the elbow.
And after the filling of the quartz sand is finished, sand washing is carried out.
1. The small flushing intensity is used when the flushing is started so as to exhaust air in a water distribution system, after the air is exhausted, the flushing intensity is gradually increased, and the time for reaching the upper limit of the designed flushing intensity is not less than 3 min.
2. The flushing intensity should be gradually reduced before stopping flushing. After draining, the layer of the support material is carefully scraped to remove light materials and fine particles from the surface of the support material.
The invention has the beneficial effects that: the invention can realize the quick filling of the quartz sand filter material of the V-shaped filter tank, realize the recycling of water resources, improve the construction efficiency and save the water resources.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
A sand filling construction method for a V-shaped filter tank of a water treatment plant comprises the following steps:
(1) feeding quartz sand into a field: planning a quartz sand pre-storage site, determining the size of the site according to the quartz sand loading amount in the filter, wherein the capacity of 2 filters needs to be stored in the site so as to realize flow process, and simultaneously ensuring that the distance between the quartz sand storage site and the V-shaped filter is within 50 meters so as to reduce the on-way resistance loss of a conveying pipeline;
(2) manufacturing a mixed water tank: welding the simple water tank by using a steel plate, wherein the upper part of the simple water tank is not sealed, and laying a water tank water replenishing pipeline to obtain a mixed water tank;
(3) laying a sand filling pipeline: selecting a delivery water pump with a corresponding lift according to the height of a filter chamber window, then communicating the feeding end of the delivery water pump with the interior of a mixed water tank through a feeding pipeline, connecting the feeding end of the delivery water pump with the delivery pipeline through an elbow, laying the delivery pipeline to the filter chamber along the outer wall of the filter chamber, entering the filter chamber through the window, simultaneously installing a sewage pump with a corresponding lift in a backflow regulating tank, and communicating the sewage pump with the mixed water tank;
(4) and (3) backwashing pipeline inspection: closing a valve of a primary filtration pipeline of the V-shaped filter tank, opening a valve of a back flushing pipeline, and confirming that a pipeline from the filter tank to the backflow regulating tank is smooth;
(5) filling quartz sand: conveying water into a mixing water tank through a water replenishing pipeline, simultaneously pouring quartz sand into the mixing water tank to be mixed with the water, pumping the quartz sand and the water in the mixing water tank into a filter tank through the conveying water pump in the step (3), filtering the quartz sand and the water through a filter head of the filter tank, allowing the water to enter a back flushing pipeline, and allowing the quartz sand to remain in the sand filter tank;
(6) and (3) water circulation recovery: after the water level in the backflow regulating reservoir reaches 1 meter, a sewage pump at the backflow regulating reservoir is started to convey water in the backflow regulating reservoir to the mixed water tank, and at the moment, a water replenishing pipeline at the mixed water tank can be closed to realize the recycling of the mixed water;
(7) filling sand in a subsequent filter tank: and after the first filter tank finishes sand filling, closing the conveying water pump, extending the conveying pipeline to a second water tank, closing a back flushing pipeline valve of the first water tank, opening a back flushing pipeline valve of the second water tank, and opening the conveying water pump to start sand filling of the second water tank.
The conveying water pump is a horizontal sewage pump.
The material of the water replenishing pipeline is PVC pipe, and the diameter of the water replenishing pipeline is DN 65.
The bend angle is 45 deg. to reduce the resistance loss of the bend.
And after the filling of the quartz sand is finished, sand washing is carried out.
1. The small flushing intensity is used when the flushing is started so as to exhaust air in a water distribution system, after the air is exhausted, the flushing intensity is gradually increased, and the time for reaching the upper limit of the designed flushing intensity is not less than 3 min.
2. The flushing intensity should be gradually reduced before stopping flushing. After draining, the layer of the support material is carefully scraped to remove light materials and fine particles from the surface of the support material.
Examples of the applications
Case one, A water supply works
Overview of the engineering:
a water plant occupies 2.9 ten thousand square meters, water supply is 20 ten thousand cubic meters per day, a 12-grid V-shaped filter pool is designed, the area of a single grid is 98 square meters, the total filtering area is 1176 square meters, the thickness of a quartz sand filter material is 1.3m, and the total volume is 1528.8 m.
Case two, B Water affairs limited company one branch factory relocation project
Overview of the engineering:
the water utilities branch-plant relocation project occupies 14.15 hectares, 25 ten thousand cubic meters are processed in design day, a 16-grid V-shaped filter tank is designed, the square meter area is 120, the total filtering area is 1920, the thickness of the quartz sand filter material is 1.2m, and the total volume is 2304 m.
Bidivision upgrading project of case three C water affairs company Limited
Overview of the engineering:
the water utilities company C, the company II, the company III, the company II, the company III, the company II, the company III, the company II, the company II, the company, the standard improvement project, the standard improvement, the improvement project occupies 3.2233 hectares occupied land, the occupation of the standard, and the water quality of the standard of the two, and the water, and the quality of water, and the effluent water, and the quality of water, and the water is stable quality of water, and the effluent reaches the one grade, and the standard, and the quality of water, and the water quality of water reaches the one grade A, and reaches the one, and the standard, and reaches the one grade A standard, and reaches the one, and reaches the one, and reaches the one, and the one. The civil engineering of each building of the scale of the sewage treatment plant is implemented according to 5 ten thousand meters 3/d, the equipment is installed according to 5 ten thousand meters 3/d, the construction is carried out by adopting the method, the construction period is advanced, good economic benefits are obtained, and the consistent praise of each party such as a construction party, a supervision party and the like is obtained.
The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.
Claims (4)
1. A sand filling construction method for a V-shaped filter tank of a water treatment plant is characterized by comprising the following steps:
(1) feeding quartz sand into a field: planning a quartz sand pre-storage site, determining the size of the site according to the quartz sand loading amount in the filter, wherein the capacity of 2 filters needs to be stored in the site so as to realize flow process, and simultaneously ensuring that the distance between the quartz sand storage site and the V-shaped filter is within 50 meters so as to reduce the on-way resistance loss of a conveying pipeline;
(2) manufacturing a mixed water tank: welding the simple water tank by using a steel plate, wherein the upper part of the simple water tank is not sealed, and laying a water tank water replenishing pipeline to obtain a mixed water tank;
(3) laying a sand filling pipeline: selecting a delivery water pump with a corresponding lift according to the height of a filter chamber window, then communicating the feeding end of the delivery water pump with the interior of a mixed water tank through a feeding pipeline, connecting the feeding end of the delivery water pump with the delivery pipeline through an elbow, laying the delivery pipeline to the filter chamber along the outer wall of the filter chamber, entering the filter chamber through the window, simultaneously installing a sewage pump with a corresponding lift in a backflow regulating tank, and communicating the sewage pump with the mixed water tank;
(4) and (3) backwashing pipeline inspection: closing a valve of a primary filtration pipeline of the V-shaped filter tank, opening a valve of a back flushing pipeline, and confirming that a pipeline from the filter tank to the backflow regulating tank is smooth;
(5) filling quartz sand: conveying water into a mixing water tank through a water replenishing pipeline, simultaneously pouring quartz sand into the mixing water tank to be mixed with the water, pumping the quartz sand and the water in the mixing water tank into a filter tank through the conveying water pump in the step (3), filtering the quartz sand and the water through a filter head of the filter tank, allowing the water to enter a back flushing pipeline, and allowing the quartz sand to remain in the sand filter tank;
(6) and (3) water circulation recovery: after the water level in the backflow regulating reservoir reaches 1 meter, a sewage pump at the backflow regulating reservoir is started to convey water in the backflow regulating reservoir to the mixed water tank, and at the moment, a water replenishing pipeline at the mixed water tank can be closed to realize the recycling of the mixed water;
(7) filling sand in a subsequent filter tank: and after the first filter tank finishes sand filling, closing the conveying water pump, extending the conveying pipeline to a second water tank, closing a back flushing pipeline valve of the first water tank, opening a back flushing pipeline valve of the second water tank, and opening the conveying water pump to start sand filling of the second water tank.
2. The sand filling construction method for the V-shaped filter tank of the water treatment plant as recited in claim 1, wherein the delivery water pump is a horizontal sewage pump.
3. The sand filling construction method for the V-shaped filter tank of the water treatment plant according to claim 1, wherein the water replenishing pipeline is made of PVC (polyvinyl chloride) pipes, and the diameter of the water replenishing pipeline is DN 65.
4. The method for sand-filling construction of a V-shaped filter tank of a water treatment plant according to claim 1, wherein the angle of the elbow is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110512929.2A CN113230703A (en) | 2021-05-11 | 2021-05-11 | Sand filling construction method for V-shaped filter tank of water treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110512929.2A CN113230703A (en) | 2021-05-11 | 2021-05-11 | Sand filling construction method for V-shaped filter tank of water treatment plant |
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| CN113230703A true CN113230703A (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110512929.2A Pending CN113230703A (en) | 2021-05-11 | 2021-05-11 | Sand filling construction method for V-shaped filter tank of water treatment plant |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2167433T3 (en) * | 1994-05-25 | 2002-05-16 | Puradyn Filter Technologies In | OIL FILTER. |
| CN104524830A (en) * | 2014-12-31 | 2015-04-22 | 中建八局第四建设有限公司 | Filter sand delivery device |
| CN107029458A (en) * | 2017-06-07 | 2017-08-11 | 中建安装工程有限公司 | A kind of device and fill method filled for deep-bed filter filter material layer |
| CN210121359U (en) * | 2019-04-18 | 2020-03-03 | 中建三局安装工程有限公司 | Device is loaded fast to sewage treatment plant sand filter |
-
2021
- 2021-05-11 CN CN202110512929.2A patent/CN113230703A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2167433T3 (en) * | 1994-05-25 | 2002-05-16 | Puradyn Filter Technologies In | OIL FILTER. |
| CN104524830A (en) * | 2014-12-31 | 2015-04-22 | 中建八局第四建设有限公司 | Filter sand delivery device |
| CN107029458A (en) * | 2017-06-07 | 2017-08-11 | 中建安装工程有限公司 | A kind of device and fill method filled for deep-bed filter filter material layer |
| CN210121359U (en) * | 2019-04-18 | 2020-03-03 | 中建三局安装工程有限公司 | Device is loaded fast to sewage treatment plant sand filter |
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Application publication date: 20210810 |
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| RJ01 | Rejection of invention patent application after publication |