CN111943362A

CN111943362A - Small-size sewage treatment integrated device

Info

Publication number: CN111943362A
Application number: CN202010449174.1A
Authority: CN
Inventors: 柴伟贺; 张世伟; 王伟伟; 白玉娟; 李凯龙
Original assignee: Dongchuan Industrial Park Branch Of Qinghai Jieshen Environmental Energy Industry Co ltd; QINGHAI JIESHEN ENVIRONMENT ENERGY INDUSTRY CO LTD
Current assignee: Dongchuan Industrial Park Branch Of Qinghai Jieshen Environmental Energy Industry Co ltd; QINGHAI JIESHEN ENVIRONMENT ENERGY INDUSTRY CO LTD
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-11-17

Abstract

The invention discloses a small-sized sewage treatment integrated device, which relates to the technical field of environmental protection equipment and comprises a frame body, a mixing tank, a BBR biochemical treatment device, an aeration tank, a sedimentation tank and a clean water tank; the frame body comprises an upper platform and a lower platform, the upper platform is provided with a mixing tank and a BBR biochemical treatment device, and the lower platform is provided with an aeration tank, a sedimentation tank and a clean water tank; the inlet of the mixing tank is connected with a raw water pump for inputting pretreated sewage, the outlet of the mixing tank is connected with a BBR biochemical treatment device, and the BBR biochemical treatment device, the aeration tank, the sedimentation tank and the clean water tank are communicated in sequence; the tail part of the aeration tank is connected with the inlet of the mixing tank through a mixed liquid reflux pump, and the bottom of the sedimentation tank is connected with the inlet of the mixing tank through a sludge reflux pump. The invention is mainly used for small-scale tests of the sewage treatment process of the bioreactor BBR taking bacillus as dominant bacteria, and can also be used for sewage treatment of small-scale units.

Description

Small-size sewage treatment integrated device

Technical Field

The invention relates to the technical field of environmental protection equipment, in particular to a small-sized sewage treatment integrated device.

Background

At present, each environmental protection enterprise competes fiercely with newly-built sewage treatment projects and original sewage treatment plant upgrading and capacity expansion projects such as spring bamboo shoots after raining. The common treatment technology for urban sewage in China mainly comprises the traditional activated sludge process, the sequencing batch activated sludge process, the oxidation ditch process, the AB process and A²The method comprises the following steps of an O method, a biological contact oxidation method, an aeration biological filter, a biological rotating disk, a biological membrane method and the like, and a plurality of new processes introduced and developed are as follows: HYBCS composite activated sludge system, biological reactor BBR sewage treatment process using bacillus as dominant bacteria, and the like.

It is difficult for the owner to select an efficient and low-cost process among such a large number of sewage treatment processes. The best approach is to have the owner see the actual effect of the selected wastewater treatment process before making the selection. The small-sized sewage treatment integrated device is the best choice, and the treatment effect of the sewage treatment process on the treated sewage is verified with lower cost.

Disclosure of Invention

The invention aims to provide a small-sized sewage treatment integrated device to solve the problems existing in the prior art.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a small-sized sewage treatment integrated device, which comprises a frame body, a mixing tank, a BBR biochemical treatment device, an aeration tank, a sedimentation tank and a clear water tank, wherein the frame body is provided with a plurality of through holes; the frame body comprises an upper platform and a lower platform, the upper platform is provided with the mixing tank and the BBR biochemical treatment device, and the lower platform is provided with the aeration tank, the sedimentation tank and the clear water tank; the inlet of the mixing tank is connected with a raw water pump for inputting pretreated sewage, the outlet of the mixing tank is connected with the BBR biochemical treatment device, and the BBR biochemical treatment device, the aeration tank, the sedimentation tank and the clean water tank are communicated in sequence; the tail part of the aeration tank is connected with the inlet of the mixing tank through a mixed liquid reflux pump, and the bottom of the sedimentation tank is connected with the inlet of the mixing tank through a sludge reflux pump.

Preferably, the frame body is formed by welding SUS304 stainless steel section bars; the upper platform and the lower platform are connected through a plurality of stand columns, and one side of the frame body is provided with a step and a handrail; the bottom of support body is provided with wooden base, four square timbers are evenly distributed at the bottom of wooden base.

Preferably, the BBR biochemical treatment device is fixed on the upper platform through a bolt set, the BBR biochemical treatment device comprises a water tank welding piece and an upper shield piece, and one side of the upper shield piece is hinged with one side of the water tank welding piece; a rotating body assembly is installed in the water tank welding piece, the rotating body assembly is rotatably installed in the water tank welding piece, and a speed reducer is installed at the driving end of the rotating body assembly; the rotating body assembly comprises a rotating body main shaft assembly and a biological contact body;

the water tank welding piece is further connected with an aeration pipeline, the aeration pipeline is connected with an air blower, and the air blower is installed on the lower platform.

Preferably, the biological contact bodies are provided in two groups, the two groups of biological contact bodies are respectively installed on the upper side and the lower side of the main shaft assembly of the rotating body, and each group of biological contact bodies comprises a plurality of biological contact bodies arranged side by side; the biological contact body is a semicircular three-dimensional net-shaped body.

Preferably, bacillus is attached to the surface of the biological contact body.

Preferably, the aeration tank includes aeration tank seam piece, divide into four check in the aeration tank seam piece, be first aeration tank, second aeration tank, third aeration tank and fourth aeration tank respectively, all be connected with aeration equipment in every aeration tank, first aeration tank and be provided with vertical mixer in the fourth aeration tank, the fourth aeration tank passes through mixed liquid backwash pump with the access connection of mixing tank.

Preferably, the sedimentation tank is provided with two in parallel, the sedimentation tank comprises a sedimentation tank welding piece, a stirring shaft welding piece is arranged in the sedimentation tank welding piece, the bottom of the sedimentation tank is connected with an inlet of the mixing tank through a sludge reflux pump, and the bottom of the sedimentation tank is also provided with an emptying port.

Preferably, the mixing tank is formed by welding stainless steel profiles.

Preferably, the clean water tank comprises a clean water tank welding piece, a clean water tank partition plate is arranged in the clean water tank welding piece and used for dividing the clean water tank welding piece into a first tank body and a second tank body, a water passing port is formed in the clean water tank partition plate, and a water outlet is formed in the second tank body; the first tank body and the second tank body are both connected with PVC aeration pipes.

Preferably, an electric control system is further mounted on the lower platform of the frame body.

Compared with the prior art, the invention has the following technical effects:

the invention is different from the traditional integrated sewage treatment device in application, is mainly used for small-scale tests of the sewage treatment process of the bioreactor BBR taking bacillus as dominant bacteria, and can also be used for sewage treatment of small-scale units;

the small-sized sewage treatment integrated device is a sewage treatment process equal-proportion reduction version of a biological reactor with Bacillus as dominant bacteria for BBR, the retention time proportion of each treatment unit is the same as the actual sewage treatment process proportion, each control parameter is the same as the actual sewage treatment process, small water amount debugging can be carried out, and the debugging reaches the standard within expected time;

the small-sized sewage treatment integrated device is made of stainless steel materials, high in integration degree, convenient to transport, capable of running after being electrified, excellent in structural strength, rigidity and corrosion resistance, excellent in performance, stable in running and long in service life by matching with a high-performance transmission design.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a process flow diagram of a small-sized integrated sewage treatment apparatus according to the present invention;

FIG. 2 is a front view of a small-sized integrated sewage treatment apparatus according to the present invention;

FIG. 3 is a top view of a small-sized integrated sewage treatment apparatus according to the present invention;

FIG. 4 is a right side view of a small-sized integrated sewage treatment apparatus according to the present invention;

FIG. 5 is an isometric view of a compact integrated wastewater treatment apparatus according to the invention;

FIG. 6 is a front view of the frame of the present invention; ' Qiyi

FIG. 7 is a left side view of the frame of the present invention;

FIG. 8 is a top view of the frame of the present invention;

FIG. 9 is an isometric view of the frame of the present invention;

FIG. 10 is a front view of the BBR biochemical treatment device of the present invention;

FIG. 11 is a left side view of the BBR biochemical treatment device of the present invention;

FIG. 12 is a right side view of the BBR biochemical treatment device of the present invention;

FIG. 13 is a top view of the BBR biochemical treatment device of the present invention;

FIG. 14 is a front view of the rotor assembly of the present invention;

FIG. 15 is a left side elevational view of the rotor assembly of the present invention;

FIG. 16 is an enlarged view taken at I in FIG. 14;

FIG. 17 is an enlarged view taken at II in FIG. 14;

FIG. 18 is a front view of the spindle assembly of the rotary body of the present invention;

FIG. 19 is a left side elevational view of the spindle assembly of the rotary body of the present invention;

FIG. 20 is a partial view of FIG. 19;

FIG. 21 is an isometric view of a water tank weldment of the present invention;

FIG. 22 is a front view of a water tank weldment of the present invention;

FIG. 23 is a left side view of a water tank weldment of the present invention;

FIG. 24 is a right side view of a water tank weldment of the present invention;

FIG. 25 is a cross-sectional view of a water tank weldment of the present invention;

FIG. 26 is an isometric view of the upper cover assembly of the BBR biochemical treatment device of the present invention;

FIG. 27 is a top view of the cover assembly of the BBR biochemical treatment device of the present invention;

FIG. 28 is a perspective view of an aeration tank of the BBR biochemical treatment apparatus of the present invention;

FIG. 29 is a front view of an aeration tank of the BBR biochemical treatment device of the present invention;

FIG. 30 is a left side view of an aeration tank of the BBR biochemical treatment device of the present invention;

FIG. 31 is a cross-sectional view A-A of FIG. 29;

FIG. 32 is a top view of an aeration tank of the BBR biochemical treatment device of the present invention;

FIG. 33 is a cross-sectional view B-B of FIG. 32;

FIG. 34 is a front view of a settling tank of the present invention;

FIG. 35 is a cross-sectional view A-A of FIG. 34;

FIG. 36 is a top view of a settling tank of the present invention;

FIG. 37 is a front view of a weld of the settling tank of the present invention;

FIG. 38 is a cross-sectional view A-A of FIG. 37;

FIG. 39 is a cross-sectional view taken along line B-B of FIG. 38;

FIG. 40 is a front view of the stirring shaft assembly of the present invention;

FIG. 41 is an isometric view of a stirring shaft assembly of the present invention;

FIG. 42 is a front view of an agitator shaft assembly in accordance with the present invention;

FIG. 43 is an isometric view of a mixing shaft assembly according to the present invention;

FIG. 44 is a front view of the mixing tank of the present invention;

FIG. 45 is a cross-sectional view A-A of the mixing tank of the present invention;

FIG. 46 is an isometric view of a mixing tank of the present invention;

FIG. 47 is a top view of a mixing tank of the present invention;

FIG. 48 is a front view of the clean water basin of the present invention;

FIG. 49 is a top view of the clean water basin of the present invention;

FIG. 50 is a right side view of the clean water basin of the present invention;

FIG. 51 is an isometric view of a clean water basin of the present invention;

FIG. 52 is a front view of the clean water basin subassembly of the present invention;

FIG. 53 is a top view of the clean water basin weldment of the present invention;

FIG. 54 is a cross-sectional view of a clean water basin weldment A-A of the present invention;

FIG. 55 is an isometric view of a clean water basin weldment of the present invention;

in the figure, 1, a raw water pump, 2, a mixing tank stirrer, 3, a sludge reflux pump, 4, an aeration pipeline, 5, a process pipeline, 6, an aeration tank stirrer, 7, an aeration tank, 8, a base, 9, an electric control system, 10, a biochemical treatment device, 11, a blower, 12, a flowmeter, 13, a mixing tank, 14, a frame body, 15, a clean water tank, 16, a sedimentation tank, 17, a mud scraping device, 18, a mixed liquid reflux pump, 19, an aeration disc, 20, an aeration pipeline, 21, an upper platform, 22, a lower platform, 23, a stand column, 24, a handrail, 25, a step, 32, an upper cover turnover mechanism, 33, an upper cover assembly, 34, a water tank welding assembly, 35, an upper cover sealing gasket, 36, a rotating body assembly, 37, a fixed support, 38, a ball bearing with a vertical seat, 39, a speed reducer moment arm, 40, a first speed reducer, 301, a baffle, 302, a flat key, 303. cotter pin, 304 outer connecting disc, 305 washer, 306 connecting disc, 307 contact body, 308 rotating body spindle assembly, 309 supporting shaft welding piece, 310 inner connecting disc, 311 driving spindle head, 312 supporting sleeve, 313 supporting disc, 314 flange, 315 spindle sleeve, 316 driven spindle head, 321 air inlet pipe bracket, 322 water inlet and outlet pipe, 323 side plate angle steel, 324 front side plate, 325 longitudinal support, 326 hinged chain, 327 bottom plate, 328 rear side plate, 329 bearing seat bracket, 330 right supporting channel steel, 331 rear channel steel, 332 left supporting channel steel, 333 front channel steel, 334 screw seat, 335U-shaped clamp, 336 fixing plate, 337 nut, 341 upper cover longitudinal support, 342 upper cover side lower plate, 343 upper cover side plate, 344 upper cover arc plate, 345 transparent upper cover transverse plate, 346 upper cover transverse plate, 347. the device comprises a handle, 348, a blind rivet, 349, a movable hinge seat, 350, a screw seat, 41, an aeration tank welding piece, 42, a vertical stirrer, 43, a stirrer support, 44, a first support fastening bolt set, 45, a first emptying port, 46, a screw cap, 47, a mixed liquor backflow pipeline, 48, a U-shaped clamp, 49, an aeration device, 410, a first lifting lug, 50, a first ball valve, 51, a stirrer fastening bolt set, 61, a sedimentation tank welding piece, 62, a second support fastening bolt set, 63, a pump support, 64, a center well welding piece, 65, a second speed reducer, 66, a fastening nut, 67, a center well fastening bolt set, 68, a stirring shaft assembly, 69, a second emptying port, 70, a pressing plate, 71, a bolt, 72, an elastic washer, 73, a water inlet pipe assembly, 74, a stirring shaft sleeve, 75, a first aeration tank, 76, a second aeration tank, 77, a third aeration tank, 78. a fourth aeration tank, 79 sludge return ports, 710 water outlet weir, 601 sedimentation tank reinforcing ring, 602 overflow weir, 603 threaded pipe, 604 sedimentation tank body, 605 supporting leg assembly, 606 lower cover plate welding assembly, 611 motor side coupling, 612 fastening screw, 613 first bolt set, 616 second bolt set, 614 stirring shaft welding assembly, 615 mud scraper press plate, 617 mud scraper, 621 rod side coupling, 622 stirring shaft, 623 third bolt set, 624 horizontal support plate, 625 reinforcing rib, 626 stirring blade welding assembly, 627 mud scraper support plate, 628 stirring shaft lower blade, 629 stirring shaft end, 701 upper angle steel I, 702 pipe frame plate, 703 upper angle steel II, 704 water outlet pipeline, 705 vertical reinforcing rib, 706 horizontal reinforcing rib, 707 surrounding plate, 708 bottom plate, 709 connecting pipe, 81. the device comprises a right-angle elbow, 94 a right-angle elbow, 82 a first pair of wires, 95 a second pair of wires, 83 a movable joint, 84 a straight pipe, 85 a tee joint, 86, a first hose joint, 93 a second hose joint, 87 a clean water tank welding part, 88, a PVC straight pipe, 92.PVC pipes, 89, a first external thread joint, 96 a second external thread joint, 90 a second ball valve, 91 a PVC tee joint, 97 a PVC aeration pipe, 98 an end cover, 801 an aeration pipe bracket, 802. a third pair of wires, 803. an internal vertical rib, 804. a transverse rib, 805. a vertical rib, 806. a long angle steel, 807. a second lifting lug, 808. a clean water tank partition plate, 809 angle steel, 810. a threaded pipe, 811. a short angle steel, 812. a surrounding plate, 813 a bottom plate, 814. a water outlet, 815, a water outlet, 816. an air inlet, 817. a water inlet, 818 and a third vent.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example one

As shown in fig. 1-55, the present embodiment provides an integrated sewage treatment device, which mainly comprises a base 8, a frame 14, a mixing tank 13, a BBR biochemical treatment device 10, an aeration tank 7, a sedimentation tank 16, a clean water tank 15, an aeration stirring system, an inlet and outlet water system, a mixed liquid reflux system, a sludge reflux system, a pipeline system, and an electric control system 9.

The frame body 14 is used as a base body of the small-sized sewage treatment integrated device, and all sewage treatment parts, pipeline valves and control circuits are arranged on the frame body, and the frame body has to have enough strength, rigidity and higher corrosion resistance.

The frame body 14 is formed by welding channel steel, angle steel and other profiles made of SUS304 stainless steel, and mainly comprises an upper platform 21, a lower platform 22, an upright column 23, a handrail 24 and a step 25. The upper platform 21 is mainly provided with a mixing tank 13 and a BBR biochemical treatment device 10, and the rest space is a routing inspection and working platform. The lower platform 22 is mainly provided with an aeration tank 7, a sedimentation tank 16, a clean water tank 15, a blower 11 and an electric control system 9. The upper and lower platforms are connected by a plurality of vertical columns 23, and a step 25 and a handrail 24 are designed on one side for operating personnel to go up and down the upper platform 21.

The BBR biochemical treatment device 10 is used as a core device of a small sewage treatment integrated device and is arranged on an upper platform of a frame body 14 by a bolt group. In order to ensure good corrosion resistance, the structural components are made of SUS304 stainless steel materials and mainly comprise an aeration pipeline 20, an upper shield turnover mechanism 32, an upper shield assembly 33, a water tank welding assembly 34, an upper shield sealing gasket 35, a rotating body assembly 36, a fixed support 37, a ball bearing 38 with a vertical seat, a speed reducer moment arm 39, a first speed reducer 40 and the like.

The rotating body assembly 36 is mounted to the tank weldment 34 by a pair of vertical seated ball bearings 38, the vertical seated ball bearings 38 being secured by a pair of bolt sets and having locating studs on both sides to prevent loosening during operation.

The driving end of the rotating body assembly 36 is provided with a first speed reducer 40, a speed reducer moment arm 39 is arranged on the shell of the first speed reducer 40, and the speed reducer moment arm 39 is hinged with the fixed support 37 through a pin shaft.

The fixing bracket 37 is fixed to the base of the tank weldment 34 by a set of bolts.

After the motor of the first speed reducer 40 is powered on, the first speed reducer works, and because the speed reducer shell is limited by the moment arm 39 of the speed reducer, the first speed reducer 40 drives the rotating body assembly 36 to rotate at a constant speed, and the rotating speed can be adjusted through frequency conversion so as to achieve an ideal rotating speed.

Go up guard shield and close piece 33 and pass through one side articulated, the fixed mode of opposite side is installed water tank seam piece 34, installs the sealed pad 35 of upper guard shield between the contact surface, prevents that sewage is excessive. The upper shield assembly 33 is turned over to open and close through the upper shield turning mechanism 32, and the maintenance is convenient and fast.

The upper shield assembly 33 is composed of a stainless steel frame body and transparent organic glass, and the working condition of the rotating body assembly 36 is clear at a glance.

The BBR biochemical treatment device 10 is additionally provided with an aeration pipeline 20, so that the oxygen demand of sewage treatment is ensured, the stirring function is also realized, and the sewage in the tank body is ensured to be in a suspended state all the time.

The rotating body assembly 36 is mainly composed of a baffle plate 301, a flat key 302, a cotter pin 303, an outer connecting disc 304, a rubber washer 305, a connecting disc 306, a contact body 307, a rotating body spindle assembly 308, a supporting shaft welding part 309, an inner connecting disc 310 and the like.

The rotating body spindle assembly 308 is mainly composed of a spindle welding part and two supporting disc welding parts. Each supporting disk is provided with 2 groups of 4 equal mounting holes, corresponding stainless steel supporting sleeves are welded on the mounting holes, and the supporting sleeves on the two supporting disks are designed concentrically.

The biological contact body 307 is a semicircular three-dimensional net body, and the area and the outer side of the installation hole are thin edges formed by hot pressing, so that the strength and the installation requirement of the biological contact body are ensured.

The biological contact bodies are divided into 2 groups of relatively independent contact body groups. A plurality of biological contact bodies 307 are connected into an integral contact body group according to the installation sequence of the connecting disc 306, the rubber gasket 305, the biological contact body 307, the rubber gasket 305 and the connecting disc 306.

The connecting discs 306 are designed into an inner bolt at one end and an outer thread at one end, and can be connected in pairs, and the flanges at the ends are matched with the mounting holes of the biological contact body 307 to play a role in positioning. During installation, the connecting discs are mutually screwed step by step, and the reliability of connection of the contact body group is ensured.

The inner connecting disc 310 is an inner thread single-side connecting disc, and the outer connecting disc 304 is an outer thread single-side connecting disc. The two types of connecting discs can be formed by modifying and processing the connecting disc 306, and the total length of the connecting discs can be properly modified and processed.

The outer end connecting discs of the contact body group are the inner connecting disc 310 and the outer connecting disc 304, the contact body group can be assembled according to the actual installation size of the rotary disc welding part by repairing and assembling the outer sides of the inner connecting disc 310 and the outer connecting disc 304, and the requirement on the machining and assembling precision of the rotary body spindle assembly 308 is reduced.

The supporting shaft welding piece 309 is formed by transitionally fitting and pressing a section of stainless steel round steel at two ends of a stainless steel pipe, performing circumferential welding at the end part, and uniformly forming a plurality of plug welding holes for plug welding at two ends of the stainless steel pipe along the circumference so as to ensure the connection strength of the round steel and the steel pipe.

A radial through hole is formed at a suitable position at one end of the support shaft welding element 309 for axially positioning the support shaft welding element 309.

Two split pin holes are designed on the supporting sleeve of the supporting disc welding piece of the rotating body spindle assembly 308, the inner split pin hole is used for fixing the supporting shaft welding piece 309, and the outer split pin hole is used for ensuring that the supporting shaft welding piece 309 cannot move out after the connection of the inner split pin hole fails.

The assembled contact body group is sleeved in a main shaft assembly 308 of the rotating body by 2 supporting shaft welding parts 309, two split pins 303 are arranged on the supporting shaft welding parts 309 and an outer fixed supporting sleeve, the supporting shaft welding parts 309 and the supporting sleeve are connected together by the inner split pins 303 to limit the axial movement of the supporting shaft welding parts 309 and the supporting sleeve, and the outer split pins play a safety protection role.

The spindle assembly 308 of the rotating body mainly comprises a driving spindle nose 311, a supporting sleeve 312, a supporting disk 313, a flange 314, a spindle sleeve 315, a driven spindle nose 316 and the like.

The driving shaft head 311 is of a stepped shaft structure, and a transmission key groove and a shaft end threaded hole are formed in the driving shaft head and used for installing and fixing the speed reducer.

The driven shaft head 316 is of a stepped shaft structure, and a shaft end threaded hole is machined in the driven shaft head for mounting and fixing a belt type seat ball bearing.

And inner holes at two ends of the main shaft sleeve 315 are finely processed and are used for being installed in a transition fit mode with a driving shaft and a driven shaft.

And the two ends of the main shaft sleeve 315 are pressed and mounted with the driving shaft head and the driven shaft head in a transition fit manner, after the pressing and mounting are in place, the connection part of the driving shaft head and the driven shaft head and the main shaft sleeve 315 is circumferentially welded, and plug welding is carried out in each plug welding hole.

The supporting discs 313 and the flange plates 314 are connected into a whole by bolt sets, then are sleeved at two ends of the main shaft sleeve 315 according to the design requirement, and are positioned by tools, after the supporting sleeve mounting holes on the two supporting discs 313 are ensured to be concentric, the flange plates 314 and the main shaft sleeve 315 are welded and connected.

The supporting sleeves 312 are welded to corresponding hole positions of the supporting disk 313 by using tools, and the supporting sleeves 312 on two sides are ensured to be concentric.

All parts on the rotating body main shaft assembly 308 are made of SUS304 stainless steel, so that good corrosion resistance is guaranteed.

The water tank welding element 34 is used as a support body and a water tank of the rotating body assembly 36, and has high strength, rigidity and super-strong corrosion resistance, and mainly comprises an air inlet pipe support 321, a water inlet and outlet pipe 322, a side plate angle steel 323, a front side plate 324, a longitudinal support 325, a hinge chain 326, a bottom plate 327, a rear side plate 328, a bearing seat support 329, a right support channel steel 330, a rear transverse channel steel 331, a left support channel steel 332, a front transverse channel steel 333, a screw seat 334, a U-shaped clamp 335, a fixing plate 336, a nut 337 and the like.

The front side plate 324, the bottom plate 327 and the rear side plate 328 form a main body water tank of the water tank welding part 34, in order to ensure the rigidity of the water tank, a side plate angle steel 323 is respectively welded on the front side plate 324 and the rear side plate 328, and a longitudinal support 325 is respectively welded on two sides of the upper part of the bottom plate 327.

The lower parts of the front side plate 324 and the rear side plate 328 are provided with frame supports consisting of a right supporting channel steel 330, a rear transverse channel steel 331, a left supporting channel steel 332 and a front transverse channel steel 333.

The front side plate 324 and the rear side plate 328 are each provided with a bearing seat bracket 329 for mounting the rotating body assembly 36 via a pair of ball bearings 38 with vertical seats.

The front side plate 324 and the rear side plate 328 are both provided with water inlet and outlet pipes 322 for the mixed liquid to enter the water tank and flow out of the water tank after being treated.

Screw bases 334 are designed on the front side plate 324 and the rear side plate 328 for mounting the upper cover turning mechanism 32.

And a mounting hole is designed on the rear transverse channel 331 and used for mounting the fixed support 37.

The lower parts of the right supporting channel steel 330 and the left supporting channel steel 332 are respectively provided with 3 mounting holes for mounting the BBR biochemical treatment device 10 complete machine.

The corresponding parts of the tank welding element 34 are also provided with an air inlet pipe bracket 321, a U-shaped clamp 335, a fixing plate 336, a nut 337 and the like for mounting the aeration pipeline 20.

The water tank seam piece 34 upper portion is installed the guard shield and is closed 33, and the guard shield is closed 33 and is nonrust section bar and steel sheet welded structure, has the function that prevents that sewage from being thrown away by the rotator in the reaction tank to and prevent that foreign matters such as rainwater from falling into the reaction tank.

The upper cover assembly 33 mainly comprises an upper cover longitudinal support 341, an upper cover side lower plate 342, an upper cover side plate 343, an upper cover arc plate 344, an upper cover plate 345, an upper cover transverse plate 346, a handle 347, blind rivets 348, a movable hinge base 349, a screw base 350 and the like.

The upper shield assembly 33 is a welded assembly structure, and a main frame of the upper shield assembly is formed by welding an upper shield longitudinal support 341, an upper shield side lower plate 342, an upper shield side plate 343, an upper shield arc plate 344 and an upper shield transverse plate 346, and all the materials are stainless steel angle steels or plates with high corrosion resistance.

The upper cover plate 345 is formed by thermal processing of transparent organic glass or acrylic plate, and then is riveted to the upper cover arc plate 344 of the upper cover assembly by the blind rivet 348, so that the adhesion condition of bacillus on the biological revolving body can be conveniently observed.

The front and rear upper cover longitudinal supports 341 are respectively provided with a handle 347 and a pair of movable hinge seats 349, the upper shield assembly 33 is connected with the water tank welding assembly 34 through the pair of movable hinge seats 349, and when the water tank welding assembly needs to be opened, the water tank welding assembly can be lifted and turned over through the handle 347. To limit the tilting angle of the upper shield assembly 33, a screw seat 350 is provided on each of the two upper cover side panels 343 for mounting the upper cover tilting mechanism 32.

The upper cover turnover mechanism 32 not only ensures that the upper shield assembly 33 can be turned to a proper working angle, but also ensures that the turning angle of the upper shield assembly 33 is not too large, thereby facilitating the opening and closing operation.

In this embodiment, the BBR biochemical treatment apparatus 10 is an attached rotating disk bioreactor, and its special spatial mesh structure mainly provides an attached carrier for microorganisms, and microorganisms are mainly attached to a three-dimensional rotating mesh contact body during the biochemical treatment process, and the contact body is immersed in the water and fully contacts with organic substances in the water to adsorb and degrade part of the organic substances; when the contact body rotates into the air, the contact body contacts with the air, and the microorganisms decompose organic substances. After the biofilm on the surface of the contact body is formed and matured, the thickness of the biofilm is increased continuously due to continuous proliferation of microorganisms, after the biofilm is thickened to a certain degree, the biofilm is converted into an anaerobic state in the deep part at the inner side, into which oxygen cannot penetrate, so that an anaerobic film is formed, an aerobic film is formed at the part, in contact with water and air, of the outside, and the degradation of organic matters is mainly carried out in the aerobic layer. The sewage contacts with the biological film, organic pollutants in the sewage are taken as nutrient substances by microorganisms on the biological film, the sewage is purified, and the microorganisms are multiplied.

The effluent of the BBR biochemical treatment device 10 automatically flows into the aeration tank 7 through a pipeline, the aeration tank 7 belongs to a suspension growth type reactor, microorganisms are always in a suspension state in the wastewater and are completely mixed with pollutants in the water, and the microorganisms absorb and decompose organic substances while adsorbing, so that the concentration of the pollutants in the wastewater is reduced, and the purification effect is achieved. In the aerobic tank, aerobic microorganisms in the wastewater play a main role in degradation, the aerobic microorganisms can fully contact with organic substances and dissolved oxygen in the water and utilize the dissolved oxygen to carry out metabolism, and the microorganisms in the life death stage enter subsequent treatment along with water flow. In the anoxic pond, facultative microorganisms are mainly used. In the system, the preferable bacillus carries out aerobic digestion in an aerobic pool, biodegradable soluble organic substances are degraded and converted into carbon dioxide, water and biological substances, and non-biodegradable granular organic substances are not influenced by the aerobic digestion and become a part of digested sludge; in the anoxic tank, bacillus converts part of ammonia nitrogen into organic nitrogen for self cell body to require, and converts the other part of ammonia nitrogen into nitrate nitrogen and nitrogen gas via dissimilatory reduction into nitrogen gas for exhausting into air.

Specifically, the aeration tank 7 belongs to a suspended growth reactor, and mainly comprises an aeration tank welded part 41, a vertical stirrer 42, a stirrer bracket 43, a first bracket fastening bolt group 44, a first exhaust port 45, a nut 46, a mixed liquid return pipeline 47, a U-shaped clamp 48, an aeration device 49, a ball valve 50, a stirrer fastening bolt group 51 and the like.

The aeration tank welding piece 41 is used as a main body of the biochemical reactor and is formed by welding stainless steel plates and stainless steel angle steel, so that the aeration tank has higher strength and better corrosion resistance, the aeration tank is divided into four grids according to the requirements of a sewage treatment process, the aeration tank is used as a first aeration tank, a second aeration tank, a third aeration tank and a fourth aeration tank of the aeration tank, each aeration tank is internally provided with an aeration device 49, each group of aeration devices is provided with an independent air inlet control valve, and the air inlet amount can be respectively adjusted according to the requirements so as to control the dissolved oxygen of each tank body. Effluent of the BBR biochemical treatment device 10 automatically flows into a first aeration tank, then sequentially flows into a second aeration tank, a third aeration tank and a fourth aeration tank through gravity flow, and a first ball valve 50 is arranged on a water outlet between each two tank bodies and used for controlling flow and on-off.

The first aeration tank and the fourth aeration tank of the aeration tank welding part 41 are also provided with a vertical stirrer 42, and when the dissolved oxygen of the tank body needs to be reduced, the air inlet of the aeration device 49 of the tank body can be reduced or closed.

The vertical mixer 42 is mounted to the mixer holder 43 by a mixer fastening bolt set 51, and the mixer holder 43 is mounted to the aeration tank welded part 41 by a first holder fastening bolt set 44.

The fourth aeration tank of the aeration tank welding part 41 is designed with a mixed liquid return line 47, and the mixed liquid return line 47 is fixed on the tank body bracket by a U-shaped clamp 48 and a screw cap 46.

The bottom of each tank body of the aeration tank welding part 41 is provided with a first emptying port 45 for emptying when the equipment stops working for a long time.

The sedimentation tank 16 is designed with 2 in the small-sized sewage treatment device, is of a parallel structure and mainly comprises a sedimentation tank welding piece 61, a bracket fastening bolt group 62, a pump bracket 63, a central well welding piece 64, a speed reducer 65, a fastening nut 66, a central well fastening bolt group 67, a stirring shaft assembly 68, a second emptying port 69, a pressure plate 70, a bolt 71, an elastic gasket 72, a water inlet pipe assembly 73, a stirring shaft sleeve 74 and the like.

The welding piece 61 of the sedimentation tank is a main body of the sedimentation tank 16, is a cylindrical welding structure and is formed by welding stainless steel plates and sectional materials. The device mainly comprises a sedimentation tank reinforcing ring 601, an overflow weir 602, a threaded pipe 603 (water inlet and outlet), a sedimentation tank body 604, a supporting leg assembly 605 and a lower cover plate welding assembly 606.

The pump bracket 63 is formed by welding SUS304 stainless steel profiles, is arranged on the welding piece 61 of the sedimentation tank through a bracket fastening bolt group 62 and is mainly used for arranging a speed reducer 65 and a central well welding piece 64.

The stirring shaft assembly 68 is one of the core components of the sedimentation tank 16, and has the main functions of collecting sludge after mud-water separation in the sedimentation tank to the bottom of the sedimentation tank through the mud scraper 617, pumping part of the sludge back to the mixing tank 13 through the sludge reflux pump 3 to ensure the sludge concentration of the sewage treatment system, and periodically discharging and treating the other part of the redundant sludge through a drain hole.

The stirring shaft assembly 68 is mainly composed of a motor side coupling 611, a set screw 612, a first bolt group 613, a second bolt group 616, a stirring shaft welding assembly 614, a mud scraper pressure plate 615 and a mud scraper 617.

The scraper 617 is fixed to the mixer shaft welds 614 by a second set of bolts 616, scraping the settled sludge off the bowl during rotation and collecting it to the bottom of the settling tank.

The stirring shaft welding piece 614 mainly comprises a rod side coupling 621, a stirring shaft 622, a third bolt group 623, a horizontal supporting plate 624, a reinforcing rib 625, a stirring blade welding piece 626, a mud scraper supporting plate 627, a stirring shaft lower blade 628, a stirring shaft end 629 and the like.

The upper part of the stirring shaft assembly 68 connects the stirring shaft assembly 68 with the output shaft of the second speed reducer 65 through the pressure plate 70, the bolt 71 and the elastic washer 72, and the lower part is inserted into the stirring shaft sleeve 74, so that the stability of the stirring shaft assembly 68 in the rotating process is ensured.

The mixing tank 13 is an indispensable and important component of the sewage treatment apparatus, and has a main function of sufficiently mixing raw water, the aeration tank return mixed liquid and the sedimentation tank return sludge in the tank by stirring of the mixing tank stirrer 2 and then feeding the mixture into a subsequent treatment unit.

The mixing tank 13 is mainly formed by welding a first angle steel 701 on a stainless steel section, a second angle steel 703, a vertical reinforcing rib 705, a transverse reinforcing rib 706, a coaming 707 and a bottom plate 708. And a pipe frame plate 702 is welded on the upper part of the lower part of.

The outlet pipe 704 is used for automatically flowing the completely mixed sewage into the next treatment unit.

The emptying connection pipe 709 is used for connecting an emptying valve, and sewage in the tank can be emptied when the sewage treatment device stops working or is maintained.

The clean water tank 15 is a final water outlet unit of the sewage treatment device and mainly comprises a clean water tank welding piece 87, a PVC aeration pipe 97, a second ball valve 90, various elbows, counter screws, movable joints, tee joints, joints and PVC pipes.

The clean water tank welding part 87 is formed by welding an aeration pipe bracket 801, a third pair of wires 802, an inner vertical rib 803, a transverse rib 804, a vertical rib 805, a long angle steel 806, a second lifting lug 807, a clean water tank partition 808, a partition angle steel 809, a threaded pipe 810, a short angle steel 811, a surrounding plate 812 and a bottom plate 813. The clean water tank is divided into two tanks by a clean water tank partition plate 808: the lower side of each pool body is respectively provided with a third pair of threads 802 as air inlets and a threaded pipe 810 for emptying when the equipment stops working or is maintained; an aeration pipe bracket 801 is designed on each tank body bottom plate 813 and is used for supporting a PVC aeration pipe 97 for stirring.

The clean water tank partition 808 is provided with a threaded pipe 810 as a water passing port of the two tank bodies, and the second tank body is provided with a threaded pipe 810 as a final water outlet.

The external thread joint 96, the PVC aeration pipe 97, the end cover 98 and the like form an aeration stirring system of the clean water tank, and when the coagulation sedimentation is needed, a valve of the aeration stirring system can be opened for aeration stirring.

And an external thread joint 89, a PVC pipe 92, a PVC tee joint 91 and a PVC straight pipe 88 are sequentially arranged on a water passing port 815 of the clean water tank welding piece 87, so that water in the first tank body stably flows to the second tank body automatically to be further clarified.

The water outlet 814 of the clean water tank welding part 87 is sequentially provided with a right-angle elbow 81 and a first hose connector 86, and the clean water after treatment can be discharged by connecting a proper hose according to the field condition.

The ball valve 90, the first pair of wires 82, the right-angle elbow 81, the movable joint 83, the straight pipe 84, the tee 85 and the first hose connector 86 are sequentially arranged on the third emptying port 818 of the clean water basin welding part 87, and an emptying system of the clean water basin is formed.

The electric control system 9 is mounted on the frame 14 by using a bolt set, and is used for controlling the rotating speed of the fan, the stirrer and the rotary body assembly and the flow rate of the raw water pump and the reflux pump so as to meet the optimal process requirement, wherein the electric control system 9 can be selected according to the requirement, such as a PLC control system and the like.

The base 8 is formed by assembling high-quality square timber through countersunk head bolt group, even if be convenient for fork truck to transport, enable equipment again and place steadily reliably, easily fix in the transportation.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; also, it is obvious to those skilled in the art that various changes and modifications can be made in the embodiments and applications of the invention. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. The utility model provides a small-size sewage treatment integrated device which characterized in that: comprises a frame body, a mixing tank, a BBR biochemical treatment device, an aeration tank, a sedimentation tank and a clean water tank; the frame body comprises an upper platform and a lower platform, the upper platform is provided with the mixing tank and the BBR biochemical treatment device, and the lower platform is provided with the aeration tank, the sedimentation tank and the clean water tank; the inlet of the mixing tank is connected with a raw water pump for inputting pretreated sewage, the outlet of the mixing tank is connected with the BBR biochemical treatment device, and the BBR biochemical treatment device, the aeration tank, the sedimentation tank and the clean water tank are communicated in sequence; the tail part of the aeration tank is connected with the inlet of the mixing tank through a mixed liquid reflux pump, and the bottom of the sedimentation tank is connected with the inlet of the mixing tank through a sludge reflux pump.

2. The integrated small-scale sewage treatment device according to claim 1, wherein: the frame body is formed by welding SUS304 stainless steel section bars; the upper platform and the lower platform are connected through a plurality of stand columns, and one side of the frame body is provided with a step and a handrail; the bottom of support body is provided with wooden base, four square timbers are evenly distributed at the bottom of wooden base.

3. The integrated small-scale sewage treatment device according to claim 1, wherein: the BBR biochemical treatment device is fixed on the upper platform through a bolt set and comprises a water tank welding piece and an upper shield piece, and one side of the upper shield piece is hinged with one side of the water tank welding piece; a rotating body assembly is installed in the water tank welding piece in a rotating mode, and a speed reducer is installed at the driving end of the rotating body assembly; the rotating body assembly comprises a rotating body main shaft assembly and a biological contact body;

4. The integrated small-scale sewage treatment device according to claim 3, wherein: the biological contact bodies are arranged in two groups, the two groups of biological contact bodies are respectively arranged on the upper side and the lower side of the rotating body main shaft assembly, and each group of biological contact bodies comprises a plurality of biological contact bodies arranged side by side; the biological contact body is a semicircular three-dimensional net-shaped body.

5. The integrated small-scale sewage treatment device according to claim 4, wherein: and bacillus is attached to the surface of the biological contact body.

6. The integrated small-scale sewage treatment device according to claim 1, wherein: the aeration tank comprises an aeration tank welding piece, four lattices are divided into a first aeration tank, a second aeration tank, a third aeration tank and a fourth aeration tank in the aeration tank welding piece, each aeration tank is internally provided with an aeration device, the first aeration tank and the fourth aeration tank are internally provided with a vertical stirrer, and the fourth aeration tank is connected with an inlet of a mixing tank through a mixed liquid reflux pump.

7. The integrated small-scale sewage treatment device according to claim 1, wherein: the sedimentation tank is parallelly connected to be provided with two, the sedimentation tank includes sedimentation tank seam piece, be provided with the (mixing) shaft in the sedimentation tank seam piece and close the piece, the bottom of sedimentation tank pass through the sludge recirculation pump with the access connection of mixing tank, the bottom of sedimentation tank still is provided with the evacuation mouth.

8. The integrated small-scale sewage treatment device according to claim 1, wherein: the mixing tank is formed by welding stainless steel sectional materials.

9. The integrated small-scale sewage treatment device according to claim 1, wherein: the clean water tank comprises a clean water tank welding piece, a clean water tank partition plate is arranged in the clean water tank welding piece and used for dividing the clean water tank welding piece into a first tank body and a second tank body, a water passing port is formed in the clean water tank partition plate, and a water outlet is formed in the second tank body; the first tank body and the second tank body are both connected with PVC aeration pipes.

10. The integrated small-scale sewage treatment device according to claim 1, wherein: and an electric control system is also arranged on the lower platform of the frame body.