CN102060390B - Auxiliary purification device of sewage conveying pipeline - Google Patents

Abstract

The invention discloses an auxiliary purification device of a sewage conveying pipeline, comprising a basalt fiber bundle (1), a support plate seat (2) and a device pipeline (3), wherein the basalt fiber bundle (1) is installed on the support plate seat (2) through a quick connecting joint (5), the support plate seat (2) with the basalt fiber bundle (1) is fixed on the inner wall of the device pipeline (3) through bolts, and the basalt fiber bundle (1) droops to the bottom side of the pipeline, thereby realizing pipeline membrane forming. The auxiliary purification device is connected with the sewage conveying pipeline by adopting a socket and spigot joint. When sewage flows through the auxiliary purification device, a biological membrane is adsorbed on the basalt fiber bundle (1) after a period of time and is fully contacted with the sewage to realize purification of the sewage in the pipeline. The auxiliary purification device adopts a mode of forming membrane on the pipeline to strengthen purification treatment of the sewage and is suitable for various sewage conveying pipelines.

Description

Auxiliary purification device for sewage transportation pipeline

technical field

The invention belongs to a treatment device for sewage. Specifically, it relates to an auxiliary purification device for a sewage transportation pipeline.

Background technique

With the development of cities, the amount of sewage generated is increasing, and the use of pipelines to purify sewage has attracted more and more attention. Studies have shown that the sewage in the pipeline has a certain self-purification ability, and the degradation of its pollutants is mainly completed by the pipeline biofilm attached to the pipeline wall and the sludge deposited at the bottom of the pipeline. A large number of test data show that there are a large number of bacteria on the inner surface of the pipeline, and the composition of the biological community is similar to that in the high-load aeration tank of the sewage plant. No matter under aerobic or anaerobic conditions, the transformation of organic matter in sewage and biochemical reactions of microorganisms will occur during pipeline transportation. Especially under aerobic conditions, pipeline biofilm will be formed during the flow of sewage in the pipeline. This layer of biofilm can not only effectively reduce the organic matter in sewage, but also has high biological activity.

At present, the research methods and shortcomings of pipeline purification sewage at home and abroad are as follows:

(1) Use pressure pipelines to treat sewage, that is, oxygenate sewage through inspection wells or aerate and oxygenate sewage main pipes. This method can increase the concentration of dissolved oxygen in the pipeline and release the gas produced by biochemical reactions (such as CO ₂ , H ₂ S), but it is difficult to control the amount of oxygenation, especially when the nitrogen and phosphorus content in the sewage is high. High concentration of oxygen will reduce the purification rate instead.

(2) Use gravity pipelines to treat sewage. This method can make full use of the advantages of large terrain drop, which is conducive to ventilation and oxygenation in the pipeline, but it is only suitable for urban drainage systems with mountainous terrain.

(3) Design sludge return facilities. This method can effectively prevent the clogging of the pipeline due to sludge accumulation and ensure that the sewage passes through the pipeline smoothly, but its function is only limited to dredging the pipeline and cannot effectively purify the sewage.

(4) The piping system is combined with bioflocculation or other processes. This method can maintain a certain concentration of microorganisms and dissolved oxygen in the pipeline, but due to the complicated process and high cost, it is only suitable for small cities with short sewage pipelines.

It can be seen that although the existing research methods have certain effects on the use of pipelines to treat sewage, they all have certain defects. Therefore, the present invention optimizes the pipeline structure and invents an auxiliary purification device that uses pipelines to effectively treat sewage. purify.

Contents of the invention

The object of the present invention is to overcome the disadvantages of the above-mentioned prior art methods. The invention provides an auxiliary purification device for a sewage transportation pipeline. The auxiliary purification device adopts the method of hanging film on the pipeline to strengthen the purification of sewage, and is applicable to various types of sewage transportation pipelines.

The auxiliary purification device of the present invention is composed of fiber bundles, support plate bases and device pipes, wherein the fiber bundles are made of basalt fiber bundles, one end of which is heat-shrinkable and bundled with rubber tubes, and installed on the support plate along the radial direction of the device pipes through quick-connect joints. On the seat, the other end hangs down to the bottom side of the device pipe. The support plate seat is fixed on the inner wall of the device pipeline by bolts. The material of the installation pipeline is reinforced concrete, which is a prefabricated part. It is connected with the sewage pipeline by a socket interface. 1.5 to 2.5 times. In order to connect the support plate seat, 6 rows of bolts are evenly embedded along the upper arc of the inner wall of the installation pipe at 225° to 270°, with 2 to 4 bolts in each row, and each row of bolts is equidistant and evenly distributed along the busbar of the inner wall. The support plate seat is a 1/8 arc plate of the inner circle of the installation pipe, which is made of stainless steel. The internal thread holes are arranged staggeredly on the support plate seat, and the internal thread holes are connected with the quick connection joints. The embedded bolts correspond to the connected through holes.

In the actual application installation, the basalt fiber bundle is first installed on the support plate seat through the quick connection joint, and then the support plate seat with the basalt fiber bundle is fixed on the inner wall of the device pipe by bolts, and the basalt fiber hangs down to the bottom side of the pipe. The auxiliary purification device with basalt fiber is connected with the sewage conveying pipeline through a socket interface.

The beneficial effect of the invention is that the basalt fiber fixed on the pipe wall of the auxiliary purification device can be used to effectively purify the sewage while transporting the sewage, and the device has a simple structure and high purification efficiency.

Description of drawings

Fig. 1 is a longitudinal sectional view of an auxiliary purification device for a sewage transportation pipeline.

Figure 2 is a layout diagram of the support plate seat.

In the figure: 1. Basalt fiber bundle; 2. Support plate seat; 3. Installation pipe; 4. Bolt; 5. Quick connection joint.

Detailed ways

When prefabricating the installation pipeline 3, 6 rows of bolts are evenly embedded along the upper arc 225°-270° of the inner wall of the installation pipeline, with 2 bolts in each row. The support plate seat 2 is a 1/8 arc plate of the inner circle of the device pipe 3, on which a number of internal threaded holes connected with the quick-connect joint 5 are arranged staggeredly, the horizontal and vertical distances of the internal threaded holes are all 4cm, and one end of the basalt fiber bundle 1 It is bundled by heat-shrinking rubber tubes, fixed on the support plate seat 2 with quick-connect joints 5, and the other end hangs down to the bottom side of the installation pipe. The support plate seat 2 with the basalt fiber bundle 1 is fixed on the inner wall of the device pipe 3 by bolts. The auxiliary purification device with basalt fiber is connected with the sewage conveying pipeline through a socket interface. When the sewage flows into the auxiliary purification device, the flow rate will decrease due to the constant water volume, which can prolong the residence time of the sewage in the pipeline. The attached biofilm is fully exposed to assist in purifying the sewage in the pipeline.

Claims (5)

1. a sewage conveying pipe auxiliary purification device is characterized in that, comprises fibrous bundle (1), supports panel seat (2) and install pipes (3); Supporting panel seat (2) is connected on the inwall of said installing pipes (3) through preembedded bolt (4) on (3) inwall that installs pipes; One end of said fibrous bundle (1) is tied up with the rubber hose pyrocondensation and is formed; Support on the panel seat (2) along radially straggly being installed on of said installing pipes (3) through fast connecting joint (5), the other end of fibrous bundle (1) hangs down to said installing pipes (3) bottom side.

2. sewage conveying pipe auxiliary purification device according to claim 1 is characterized in that the filler of said fibrous bundle (1) is a basalt fibre.

3. sewage conveying pipe auxiliary purification device according to claim 1 and 2; It is characterized in that; Said support panel seat (2) adopts stainless material, said support panel seat (2) staggered arrangement internal thread hole for 1/8 arc plate of circle in install pipes (3); Internal thread hole is connected with fast connecting joint (5), supports the circular arc top side of panel seat (2) and offers and (3) the upward through hole of the corresponding connection of pre-embedded bolt that installs pipes.

4. sewage conveying pipe auxiliary purification device according to claim 1 and 2; It is characterized in that; Said installing pipes (3) is reinforced concrete precast member; Its caliber is 1.5 ~ 2.5 times of the sewage running piping caliber that connected, and duct length is for connecting 1.5 ~ 2.5 times of sewage running piping caliber.

5. sewage conveying pipe auxiliary purification device according to claim 1 and 2 is characterized in that, said bolt (4) is uniformly distributed with pre-buried 6 row along 225 ° ~ 270 ° of arcs on (3) inwall that installs pipes, 2 ~ 4 of every row, and every row bolt is uniformly distributed with along inwall bus equidistance.

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