Integrated large-scale metal device for high-intensity wastewater biological treatment

Abstract

An integrated large-scale metal device for high-intensity wastewater biological treatment, comprising inlet and outlet pipes, wastewater, activated sludge, an aeration oxygen supply apparatus, and a metal housing, thereby forming a tank-shaped wastewater biological treatment system. The metal housing surrounding the tank-shaped wastewater biological treatment system is composed of a hollow double-layer metal formed by two layers of metal plates (1) and core tubes (2) in between. The hollow double-layer metal is formed by hot air copper wire welding and forming of the core tubes (2). An air channel and a flow channel are formed between the inner and outer gaps of the core tubes (2). The activated sludge is formed by combining an oxidation ditch and MBR. The aeration oxygen supply apparatus comprises a fixed rubber aeration tube. The metal housing is made of stainless steel.

Description

High-strength integrated large metal equipment for biological treatment of sewage TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sewage treatment, and particularly relates to high-strength integrated large metal equipment for biological treatment of sewage. BACKGROUND

[0002] Most of the sewage treatment plants nowadays are equipped with concrete, which has the advantage of long service life (more than 50 years), but the heat preservation effect is poor, the construction period is long, and the low-carbon problem has not been effectively solved. The shell made of stainless steel and carbon steel has appeared on the market. The construction problem is well solved, but the leakage (using rubber weld) and heat preservation problems have not been solved, resulting in low ammonia nitrogen removal rate. The environmental protection department of Shanxi Province requires to increase the compulsory heat preservation measures to achieve the purpose of removing COD, ammonia nitrogen and total nitrogen in winter. The market also gradually appears in the design of aesthetic degree, but the aesthetic degree and strength cannot be guaranteed.

[0003] The shell material is integrally formed, which is effectively combined with the company's process and equipment patent technology, that is, the assembly type structure is adopted, which can reduce the occupied area. After adding the heat preservation measures, the sludge activity is increased, the sludge concentration is improved, and the removal rate of ammonia nitrogen and total nitrogen is improved. The metal framework used in the spliced core plate technology has high compressive strength, and test data shows that the service life can reach 1000 years. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing high-strength integrated large metal equipment for biological treatment of sewage to solve the problems in the background art.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: high-strength integrated large metal equipment for biological treatment of sewage, which comprises an inlet and outlet pipe, sewage, activated sludge, an aeration oxygen supply device and a metal shell, thereby forming a pool-shaped sewage biological treatment system. The metal shell around the pool-shaped sewage biological treatment system is composed of a hollow double-layer metal composed of two layers of metal plates and a core pipe in the middle. The hollow double-layer metal is formed by copper brazing of the core pipe hot air.

[0006] Preferably, air channels and flow channels are formed between the inside and outside gaps of the core pipe. The activated sludge is formed by combining the oxidation ditch with MBR. The aeration oxygen supply device comprises a fixed rubber aeration pipe. The metal shell is made of stainless steel.

[0007] Preferably, the hollow plate material comprises a bottom plate material, a frame and a reinforcing column, and is formed by cooperating and welding the bottom plate material, the frame and the reinforcing column. The pool wall and the bottom plate of the metal shell around the pool-shaped sewage biological treatment system are hollow double-layer metals.

[0008] Preferably, the metal plate and the interlayer of the core pipe are filled with thermal insulation filler, the material of the interlayer thermal insulation filler is rock wool, and the core pipe array in the interior of the metal shell is formed by copper brazing at 1078 DEG C.

[0009] Preferably, the hot air brazing uses hot air as a medium, the array of the core pipe has a gap, and high-speed hot air is blown into the gap.

[0010] Preferably, a hinge is connected between the two layers of the metal plate, and the two layers of the metal plate are connected by copper brazing.

[0011] Compared with the prior art, the utility model has the advantages that: the utility model adopts the oxidation ditch and MBR combination, the new water treatment technology which combines the activated sludge method and the membrane separation technology, removes the organic matter of the sewage: the oxidation ditch provides a large number of microbial flora, accelerates the degradation and oxidation of the organic matter, thereby achieving the removal of the organic matter; removes the nutrients such as nitrogen and phosphorus in the sewage: the microbial flora in the oxidation ditch can also utilize the nutrients such as nitrogen and phosphorus in the sewage, so that the nutrients are oxidized and degraded, thereby achieving the removal of the nutrients; improves the water quality: the water quality after the treatment of the oxidation ditch is also obviously improved, so that the treated water can meet various discharge standards.

[0012] The two layers of the metal plate are connected by copper brazing and a hinge, and the core pipe array is formed by copper brazing at 1078 DEG C, using hot air as a medium instead of traditional heat radiation, so that the connection strength is high and the core pipe array will not be easily deformed, the core pipe array has a gap, and hot air is blown into the gap at a very high speed, so that the whole metal plate is heated very uniformly, so that a huge plate can be welded and is flat like a mirror, and permanent stress deformation does not occur.

[0013] Through the assembly type structure, the occupied area is reduced; the double-layer metal thermal insulation measure is adopted to increase sludge activity, improve sludge concentration, and improve the removal rate of ammonia nitrogen and total nitrogen; and the whole equipment adopts the assembly type core plate technology to form a permanent rectangular sewage treatment biological pool, and test data show that the service life can reach 1000 years, the installation speed is fast, thermal insulation is achieved, the activity of activated sludge is prevented from being reduced, the price cost is low, the sewage treatment speed is fast, and the service life is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0015] Fig. 1 is a schematic diagram of the overall structure of the utility model;

[0016] Fig. 2 is a schematic diagram of the core pipe structure and the thermal insulation filler of the utility model;

[0017] Fig. 3 is a schematic diagram of the hinge welding position of the present application;

[0018] In the figure: 1, metal plate; 2, core pipe; 3, heat preservation filler; 4, hinge. DETAILED DESCRIPTION

[0019] The following will be further non-restrictive detailed description of the technical scheme of the present application in combination with preferred embodiments and their drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] Please refer to Figs. 1-3, the present application provides technical scheme: high-strength sewage biological treatment with integrated large metal equipment, including inlet and outlet pipe, sewage, activated sludge, aeration oxygen supply device and metal shell, thereby forming pool-like sewage biological treatment system, the metal shell around the pool-like sewage biological treatment system is composed of two layers of metal plate 1 and the hollow double-layer metal composed of the core pipe 2 in the middle, the hollow double-layer metal is formed by copper brazing with hot air through the core pipe 2.

[0021] The core pipe 2 and the gap between the outside form airway and flow channel, the activated sludge is formed by combining oxidation ditch and MBR, the aeration oxygen supply device includes fixed rubber aeration pipe, the metal shell is made of stainless steel material.

[0022] The hollow plate includes bottom plate, frame and reinforcing column, and is formed by welding and assembling the bottom plate, frame and reinforcing column, the pool wall and the bottom plate of the metal shell around the pool-like sewage biological treatment system are hollow double-layer metal.

[0023] The heat preservation filler 3 is filled between the core of the metal plate 1 and the core pipe 2, the material of the heat preservation filler 3 between the core is rock wool, the core pipe 2 array in the interior of the metal shell is formed by copper brazing at 1078℃.

[0024] Hot air brazing uses hot air as medium, the array of the core pipe 2 has gap, and high-speed hot air is blown into the gap.

[0025] The hinge 4 is connected between the two layers of metal plate 1, and is formed by copper brazing, connecting the two layers of metal plate 1.

[0026] Large integrated sewage biological treatment metal equipment, by the inlet and outlet pipe, sewage, activated sludge, aeration oxygen supply device and rectangular metal shell constitute the pool-shaped sewage biological treatment system, the shell around the pool-shaped sewage biological treatment system is composed of two layers of metal plate 1 and the core pipe 2 in the middle of the hollow double-layer metal, the core pipe 2 of the hollow double-layer metal plate 1 used is honeycomb-shaped in cross section; the air passage formed between the inside and outside of the core pipe 2 is added with hot steam, and the air passage is connected with the metal plate 1 at the head and tail to form the inlet and outlet;

[0027] The biological treatment system is used for treating domestic sewage, adopts the process combining oxidation ditch and MBR, is provided with a baffle in the length direction of the metal shell, the baffle and the two ends of the metal shell are provided with a spacing, the metal shell is divided into two cavities, and the two cavities are water-connected to form an oxidation ditch circulating channel, and the MBR flat membrane device is arranged on at least one side of the baffle;

[0028] The large metal equipment has strong heat preservation performance, can increase sludge activity, has high equipment strength, and has high equipment overall installation efficiency, realizes rapid splicing, and has lower cost than other large sewage biological treatment equipment;

[0029] The new water treatment technology combining oxidation ditch and MBR combines activated sludge method and membrane separation technology, removes organic matter in sewage: the oxidation ditch provides a large number of microbial flora, accelerates the degradation and oxidation of organic matter, so that the organic matter is removed; removes nutrients such as nitrogen and phosphorus in sewage: the microbial flora in the oxidation ditch can also utilize the nutrients such as nitrogen and phosphorus in the sewage, so that the nutrients are oxidized and degraded, so that the nutrients are removed; improves water quality: the water quality after the treatment of the oxidation ditch is also obviously improved, so that the treated water body can meet various discharge standards;

[0030] The two layers of metal plates 1 are connected in the mode of copper brazing and hinge 4, are formed by copper brazing at 1078 DEG C, are connected by hot air as medium instead of traditional heat radiation, have high connection strength and cannot be easily deformed, the array of the core pipe 2 has a gap, hot air is blown into the gap at a very high speed, the whole metal plate 1 is heated very uniformly, a huge plate can be welded and is flat like a mirror, and permanent stress deformation is not generated;

[0031] Through the assembly type structure, the occupied area is reduced; the heat preservation measure of the double-layer metal is adopted, the sludge activity is increased, the sludge concentration is increased, the removal rates of ammonia nitrogen and total nitrogen are increased; and the whole equipment adopts the splicing type core plate technology, forms a permanent rectangular sewage treatment biological pool, test data show that the service life can reach 1000 years, the installation speed is fast, heat preservation is achieved, the activity of activated sludge is avoided to be reduced, the price cost is low, the sewage treatment speed is fast, and the service life is high.

[0032] In the description of the utility model, need understanding is, the term "upper", "lower", "front", "back", "left", "right" and so on indicated orientation or position relation is based on the orientation or position relation shown in the drawing, only is for the convenience of describing the utility model, and is not indicating or suggesting the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore can not be understood as the limitation to the utility model.

[0033] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, but not limit them. Although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A high-strength integrated large metal equipment for biological treatment of sewage, comprising an inlet and outlet water pipe, sewage, activated sludge, an aeration oxygen supply device and a metal shell, thereby forming a pool-shaped sewage biological treatment system, characterized in that: The metal shell of the pool-shaped sewage biological treatment system is composed of two layers of metal plates (1) and a hollow double-layer metal with a core pipe (2) in the middle, which is formed by hot air copper brazing of the core pipe (2), and the air channel and flow channel are formed between the inside and outside gaps of the core pipe (2), the activated sludge is formed by combining the oxidation ditch with MBR, the aeration oxygen supply device includes a fixed rubber aeration pipe, the metal shell is made of stainless steel, the hollow double-layer metal includes a bottom plate, a frame and a reinforcing column, and is assembled by welding the bottom plate, the frame and the reinforcing column, the pool wall and the bottom plate of the metal shell around the pool-shaped sewage biological treatment system are made of hollow double-layer metal, the core pipe (2) is filled with thermal insulation filler (3) between the core pipe (2) and the core pipe (2), the material of the thermal insulation filler (3) is rock wool, the core pipe (2) in the metal shell is formed by 1078 DEG C copper brazing, the hot air brazing uses hot air as the medium, the core pipe (2) has gaps, and hot air is blown into the gaps at high speed, the two layers of metal plates (1) are connected by hinges (4) and are connected by copper brazing, and the two layers of metal plates (1) are connected. ​

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