Assembly type UASB anaerobic reactor capable of being rapidly installed and overhauled

Abstract

The utility model discloses an assembled UASB (Upflow Anaerobic Sludge Blanket) anaerobic reactor capable of being quickly mounted and overhauled, which relates to the technical field of sewage anaerobic treatment and comprises a cylindrical tank body, a tank top cover, a water inlet mixing pipe and a water-sealed tank. According to the reactor disclosed by the utility model, the reactor adopts an assembly type design, and all parts such as the cylindrical tank body, the tank top cover and the water inlet mixing pipe can be modularly assembled through connecting pieces such as bolts, so that the reactor is convenient to quickly mount and dismount; when a problem occurs in the reactor, the emptying pipe is connected with the external temporary drain pipe to discharge a medium in the UASB anaerobic reactor to an external emergency water tank for temporary storage, the liquid level of the medium only needs to be reduced by 3-5 m, and then a crane is used for quickly hoisting and disassembling each component from top to bottom for overhauling, so that the overhauling time and the downtime are greatly shortened; and the maintenance cost of the reactor is reduced due to the assembly type design and the modular assembly, and each part can be independently replaced or maintained without replacing the whole reactor.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage anaerobic treatment technical field, specifically a kind of quick installation and overhaul's assembly type UASB anaerobic reactor. BACKGROUND

[0002] UASB anaerobic reactor is widely used in high concentration organic wastewater treatment, such as fine chemical industry, pharmacy, coking, beer, slaughter wastewater and landfill leachate etc..Its advantages include high COD removal rate, low energy consumption, low cost, less sludge, simple equipment, convenient operation, high volumetric loading rate and stability.

[0003] However, existing UASB anaerobic reactor mostly adopts fixed water distribution device, three-phase separator and tank top cover, which leads to great difficulty in overhaul.Especially when overhauling water distribution device, mud-water mixture needs to be emptied, and long restart time is faced.For example, in landfill leachate treatment, UASB reactor bottom water distributor is easy to be blocked, and needs to be overhauled, and 3-6 months are needed for restart, which affects application.

[0004] Based on this, a quick installation and overhaul's assembly type UASB anaerobic reactor is provided, which can eliminate the great difficulty in installation and overhaul of existing UASB anaerobic reactor. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a quick installation and overhaul's assembly type UASB anaerobic reactor to solve the problems of long restart time, great difficulty in overhaul and large engineering quantity in background technology when overhauling water distribution device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A quick installation and overhaul's assembly type UASB anaerobic reactor, comprising cylindrical tank body, tank top cover, water inlet mixing pipe and water seal tank.

[0008] The cylindrical tank body comprises cylindrical tank body shell, heat preservation layer and spiral ladder are installed on the outer wall of the cylindrical tank body shell, emptying pipe is installed at the bottom of the side wall of the cylindrical tank body shell, water outlet weir system, liftable three-phase separator, three-phase separator support, liftable water distribution device are sequentially arranged in the cylindrical tank body shell from top to bottom, the three-phase separator support is fixed with the inner wall of the cylindrical tank body shell, guide rail system is arranged in the cylindrical tank body shell, the liftable three-phase separator and the liftable water distribution device are connected with the guide rail system, separator lifting lug is fixed on the upper end of the liftable three-phase separator, the separator lifting lug is connected with steel wire rope.

[0009] The tank top cover comprises a tank top cover shell which is bolted on the upper end of the cylindrical tank body shell, the upper end of the tank top cover shell is provided with a top rail, the upper end of the tank top cover shell is symmetrically provided with a top manhole one and a top manhole two, and the upper end of the tank top cover shell is provided with a breather valve.

[0010] The water inlet mixing pipe comprises a water inlet mixing pipe shell, a circulating water inlet flange and a sewage water inlet flange are arranged on the water inlet mixing pipe shell, the water inlet mixing pipe shell is connected with the liftable water distribution device through a water outlet hose, a water inlet mixing pipe support is fixed to the lower end of the water inlet mixing pipe shell, and the water inlet mixing pipe support is bolted on the upper end of the tank top cover shell.

[0011] The water seal tank is bolted on the upper end of the tank top cover shell.

[0012] Preferably, the upper edge of the cylindrical tank body shell and the lower edge of the tank top cover shell are designed in an outwardly expanded horizontal flange structure, the tank top cover shell is bolted on the upper end of the cylindrical tank body shell and connected with the flange outer edges of the two, and the tank top cover shell and the cylindrical tank body shell are sealed by a rubber sealing ring.

[0013] Preferably, the guide rail system comprises T-shaped guide rails, guide rail horizontal supports, sliding guide shoes and guide rail vertical supports, the guide rail horizontal supports are fixedly connected with the inner wall of the cylindrical tank body shell, the guide rail vertical supports are fixed to the bottom of the inner wall of the cylindrical tank body shell, the T-shaped guide rails are bolted with the guide rail horizontal supports and the guide rail vertical supports, two groups of sliding guide shoes are slidably arranged on the T-shaped guide rails, and the two groups of sliding guide shoes are connected with the liftable three-phase separator and the liftable water distribution device respectively.

[0014] Preferably, the liftable water distribution device comprises a fairing, a water distributor, a water distribution device support and a water distribution device lifting lug, the water distributor is connected with the water outlet hose, the fairing is connected with the guide rail system, the water distributor is fixed in the fairing, the water distribution device lifting lug is fixed to the upper end of the fairing, the water distribution device lifting lug is connected with the top of the inner wall of the cylindrical tank body shell through a steel wire rope, the water distribution device support is fixed to the lower end of the fairing, and the liftable water distribution device is supported by the water distribution device support and the upper surface of the inner bottom plate of the cylindrical tank body shell.

[0015] Preferably, the water outlet weir system comprises a water outlet flange short pipe, a water outlet weir support and a water outlet weir, the water outlet weir support is fixed to the lower end of the water outlet weir, the water outlet weir support is bolted with the inner wall of the cylindrical tank body shell, and the water outlet weir is connected with the external water outlet pipe through the water outlet flange short pipe.

[0016] Compared with the prior art, the utility model has the advantages of the following:

[0017] 1. The utility model discloses a lifting type three-phase separator and a lifting type water distribution device in the cylindrical tank body shell are guided along the T-shaped guide rail up and down through the guide rail system, the lifting type three-phase separator is connected with the external crane hook through the upper end lifting lug and the steel wire rope, the lifting type water distribution device is connected with the external crane hook through the upper end lifting lug and the steel wire rope, and the external crane provides power for the movement of the two, guarantees quick installation and overhauling hoisting to the external empty area of the cylindrical tank body, which not only is convenient for daily maintenance and overhauling, but also improves the flexibility and convenience of operation.

[0018] 2. The utility model discloses a reactor adopts assembly type design, and each component such as cylindrical tank body, tank top cover, water inlet mixing pipe can be modularly assembled through bolt connecting piece, and is convenient for quick installation and dismounting, when the problem appears in the reactor, through the emptying pipe connection external temporary drain pipe, the medium in the UASB anaerobic reactor is discharged to the external emergency pool temporary storage, and its liquid level only needs to reduce 3m-5m, then utilizes the crane from top to bottom quick hoisting and dismounting each component and overhauls, greatly shortens the overhauling time and downtime, and the assembly type design and modular assembly make the maintenance cost of reactor reduce, because each component can be replaced or repaired individually, and the whole reactor does not need to be replaced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural schematic diagram of the utility model.

[0020] Figure 2 It is the structural schematic diagram of the utility model upper end position.

[0021] Figure 3 It is the structural schematic diagram of the utility model inside.

[0022] Figure 4 It is the structural schematic diagram of the utility model lifting type water distribution device and guide rail system.

[0023] Figure 5 It is the structural schematic diagram of the utility model lifting type three-phase separator.

[0024] Reference signs annotation: 1, cylindrical tank body; 11, cylindrical tank body shell; 12, water weir system; 13, liftable three-phase separator; 14, three-phase separator support; 15, liftable water distribution device; 16, guide rail system; 17, heat preservation layer; 18, emptying pipe; 19, spiral ladder; 121, water outlet flange short pipe; 122, water weir support; 123, water weir; 131, separator lifting lug; 151, fairing; 152, water distributor; 153, water distribution device support; 154, water distribution device lifting lug; 161, T-shaped guide rail; 162, guide rail horizontal support; 163, sliding guide shoe; 164, guide rail vertical support; 2, tank top cover; 21, tank top cover shell; 22, top rail; 23, top manhole one; 24, top manhole two; 25, breather valve; 3, water inlet mixing pipe; 31, water inlet mixing pipe shell; 32, circulating water inlet flange; 33, sewage inlet flange; 34, water outlet hose; 35, water inlet mixing pipe support; 4, water seal tank. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below with reference to the drawings and examples.

[0026] In one embodiment, as shown in Figures 1-5 A quick installation and maintenance assembly type UASB anaerobic reactor, comprising a cylindrical tank body 1, a tank top cover 2, a water inlet mixing pipe 3 and a water seal tank 4.

[0027] The cylindrical tank body 1 comprises a cylindrical tank body shell 11, the outer wall of the cylindrical tank body shell 11 is provided with a heat preservation layer 17 and a spiral ladder 19, the bottom of the side wall of the cylindrical tank body shell 11 is provided with an emptying pipe 18, the inside of the cylindrical tank body shell 11 is sequentially provided from top to bottom with a water weir system 12, a liftable three-phase separator 13, a three-phase separator support 14 and a liftable water distribution device 15, the three-phase separator support 14 is fixed to the inner wall of the cylindrical tank body shell 11, the inside of the cylindrical tank body shell 11 is provided with a guide rail system 16, the liftable three-phase separator 13 and the liftable water distribution device 15 are connected to the guide rail system 16, the upper end of the liftable three-phase separator 13 is fixed with a separator lifting lug 131, and the separator lifting lug 131 is connected to a steel wire rope.

[0028] The tank top cover 2 comprises a tank top cover shell 21, the tank top cover shell 21 is bolted to the upper end of the cylindrical tank body shell 11, the upper end of the tank top cover shell 21 is provided with a top rail 22, the upper end of the tank top cover shell 21 is symmetrically provided with a top manhole one 23 and a top manhole two 24, and the upper end of the tank top cover shell is provided with a breather valve 25.

[0029] The water inlet mixing pipe 3 comprises a water inlet mixing pipe shell 31, which is provided with a circulating water inlet flange 32 and a sewage water inlet flange 33, and is connected with the liftable water distribution device 15 through a water outlet hose 34. The water inlet mixing pipe shell 31 is fixed with a water inlet mixing pipe support 35 at the lower end thereof, which is bolted to the upper end of the tank top cover shell 21.

[0030] The water seal tank 4 is bolted to the upper end of the tank top cover shell 21.

[0031] In the embodiment, when assembling the UASB anaerobic reactor, first, the cylindrical tank body shell 11 is installed on the steel concrete foundation of the reactor, and then the guide rail system 16, the three-phase separator support 14, the water outlet weir system 12, the liftable water distribution device 15, the water outlet hose 34, and the liftable three-phase separator 13 are hoisted in sequence by an external crane. Then, the thermal insulation layer 17 and the spiral ladder 19 are installed outside the cylindrical tank body shell 11, thereby completing the assembly of the cylindrical tank body 1. Then, the tank top cover 2 is hoisted to the top of the cylindrical tank body 1 by the crane and bolted. Then, the water inlet mixing pipe 3 is hoisted to the top of the tank top cover 2 by the crane and the water inlet mixing pipe support 35 is bolted. Finally, the water seal tank 4 is hoisted to the top of the tank top cover 2 by the crane and bolted, thereby quickly completing the assembly of the assembled UASB anaerobic reactor which can be quickly installed and maintained. The water inlet mixing pipe 3 of the UASB anaerobic reactor is connected with the external sewage water inlet pipe and the circulating water pipe, and the water outlet flange short pipe 121 of the UASB anaerobic reactor is connected with the external water outlet pipe, so that the entire UASB anaerobic reactor can be connected to the sewage treatment system for UASB anaerobic treatment of sewage.

[0032] In an alternative embodiment, the upper edge of the cylindrical tank body shell 11 and the lower edge of the tank top cover shell 21 are designed in an outwardly expanded horizontal flange structure. The tank top cover shell 21 is installed on the upper end of the cylindrical tank body shell 11 and bolted to the flange edges of the two, and a rubber sealing ring is installed between the tank top cover shell 21 and the cylindrical tank body shell 11 for sealing treatment.

[0033] It should be noted that the edges of the cylindrical tank body shell 11 and the tank top cover shell 21 are designed in an outwardly expanded horizontal flange structure, which is convenient for bolting and sealing, and a rubber sealing ring is installed between the two to ensure the sealing of the reactor.

[0034] In an alternative embodiment, the guide rail system 16 comprises a T-shaped guide rail 161, a guide rail horizontal support 162, a sliding guide shoe 163, and a guide rail vertical support 164. The guide rail horizontal support 162 is fixedly connected to the inner wall of the cylindrical tank shell 11. The guide rail vertical support 164 is fixed to the inner bottom of the cylindrical tank shell 11. The T-shaped guide rail 161 is connected to the guide rail horizontal support 162 and the guide rail vertical support 164 by bolts. Two groups of sliding guide shoes 163 are slidably connected to the T-shaped guide rail 161. The two groups of sliding guide shoes 163 are respectively connected to the liftable three-phase separator 13 and the liftable water distribution device 15.

[0035] It should be noted that the gap between the liftable three-phase separator 13 and the T-shaped guide rail 161 is filled with elastic soft sealing rubber material to ensure that there is no gas leakage in the gap area. When maintenance is required, the elastic soft sealing rubber material filled in the gap and the fixing bolts of the liftable three-phase separator 13 need to be removed first. Then, the liftable three-phase separator 13 can be lifted by an external crane and moved upward along the T-shaped guide rail 161, so that the liftable three-phase separator 13 can be quickly lifted and disassembled to the external empty area of the UASB anaerobic reactor for maintenance.

[0036] In an alternative embodiment, the liftable water distribution device 15 comprises a fairing 151, a water distributor 152, a water distribution device support 153, and a water distribution device lifting lug 154. The water distributor 152 is connected to the water outlet hose 34. The fairing 151 is connected to the guide rail system 16. The water distributor 152 is fixed inside the fairing 151. The water distribution device lifting lug 154 is fixed to the upper end of the fairing 151. The water distribution device lifting lug 154 is connected to the top inner wall of the cylindrical tank shell 11 by a steel wire rope. The water distribution device support 153 is fixed to the lower end of the fairing 151. The liftable water distribution device 15 is supported by the water distribution device support 153 in contact with the upper surface of the inner bottom plate of the cylindrical tank shell 11.

[0037] It should be noted that the water outlet hose 34 is a metal hose. The liftable water distribution device 15 is connected to the steel wire rope through the water distribution device lifting lug 154, which facilitates the connection of the lifting steel wire rope to the lifting hook of the crane during maintenance, thereby achieving the purpose of quickly installing and maintaining the liftable water distribution device 15. The lifting steel wire rope passes through the gap of the liftable three-phase separator 13 and is sealed with elastic soft sealing rubber material.

[0038] In an alternative embodiment, the water outlet weir system 12 comprises a water outlet flange short pipe 121, a water outlet weir support 122, and a water outlet weir 123. The water outlet weir 123 has a water outlet weir support 122 fixed to its lower end. The water outlet weir support 122 is connected to the inner wall of the cylindrical tank shell 11 by bolts. The water outlet weir 123 is connected to the external water outlet pipe through the water outlet flange short pipe 121.

[0039] It should be noted that the tail water treated by the UASB anaerobic reactor is collected by the effluent weir 123 and then flows into the peripheral effluent pipe by gravity through the effluent flange short pipe 121 to enter the next processing unit.

[0040] The above embodiment discloses an assembled UASB anaerobic reactor which can be quickly installed and maintained. The sewage enters the inlet mixing pipe shell 31 through the sewage inlet flange 33, and the circulating water also enters the inlet mixing pipe shell 31 through the circulating water inlet flange 32. In the inlet mixing pipe shell 31, the sewage and the circulating water are fully mixed to ensure the uniformity of the inlet water quality. The mixed water enters the liftable water distribution device 15 through the effluent hose 34.

[0041] The liftable water distribution device 15 uniformly distributes the mixed water in the cylindrical tank shell 11 through the fairing 151 and the water distributor 152. The design of the water distributor 152 ensures that the water flow can uniformly cover the sludge bed, promoting the full contact of the sludge and the sewage. The organic matter in the sewage is decomposed under the action of the anaerobic granular sludge, producing biogas, small molecule organic matter, water and carbon dioxide.

[0042] In the cylindrical tank shell 11, the biogas rises through the rising channel of the liftable three-phase separator 13. The design of the three-phase separator 13 ensures that the biogas, sludge and water can be effectively separated. The biogas is collected and discharged, and the sludge returns to the sludge bed to continue to participate in the reaction. The clean water is collected by the effluent weir system 12 and discharged from the reactor through the effluent flange short pipe 121.

[0043] The heat preservation layer 17 outside the cylindrical tank shell 11 ensures the stability of the temperature in the reactor, which is conducive to the anaerobic reaction. When maintenance or repair is needed, the internal medium of the UASB anaerobic reactor can be discharged to the external emergency water pool for temporary storage through the emptying pipe 18 connected to the external temporary drainage pipe, and the liquid level only needs to be lowered by 3m-5m, and then the maintenance work of the internal components of the cylindrical tank shell 11 can be carried out.

[0044] When the UASB anaerobic reactor has problems inside, such as the scaling of the water distribution device 15 and the water outlet hose 34 of the water inlet mixing pipe 3, and the uneven distribution of water, the assembly type UASB anaerobic reactor needs to be overhauled. The assembly type UASB anaerobic reactor can be stopped running, the sludge-water mixture inside the UASB anaerobic reactor can be discharged to the external emergency pool through the emptying pipe 18 connected to the external temporary drainage pipe, and the liquid level only needs to be lowered by 3m-5m. Then the water seal tank 4, the water inlet mixing pipe 3, the tank top cover 2, the water outlet weir system 12, the three-phase separator 13 and the water distribution device 15 are quickly lifted from top to bottom by the external crane and placed on the ground near the UASB anaerobic reactor, so that the water distribution device 15 and the water outlet hose 34 can be quickly overhauled. After the overhaul is completed, the water distribution device 15, the three-phase separator 13, the water outlet weir system 12, the tank top cover 2, the water inlet mixing pipe 3 and the water seal tank 4 can be quickly lifted and assembled by the external crane from bottom to top, the hoisting of the UASB anaerobic reactor components is quickly completed, and the sludge-water mixture temporarily stored in the external emergency pool can be pumped into the UASB anaerobic reactor and run at a low flow rate for 7-14 days, so that the UASB anaerobic reactor can be quickly recovered and started, and can run normally with full load of sewage, so as to achieve the purpose of quick overhaul, quick recovery and start, and quick normal full load operation.

[0045] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A quick-mountable and quick-repairable fabricated UASB anaerobic reactor, characterized in that, It comprises a cylindrical tank body (1), a tank top cover (2), a water inlet mixing pipe (3) and a water seal tank (4). The cylindrical tank body (1) comprises a cylindrical tank body shell (11), the outer wall of which is provided with a heat preservation layer (17) and a spiral ladder (19), the bottom of the side wall of the cylindrical tank body shell (11) is provided with a emptying pipe (18), and the inside of the cylindrical tank body shell (11) is sequentially provided from top to bottom with a water outlet weir system (12), a liftable three-phase separator (13), a three-phase separator support (14), and a liftable water distribution device (15), the three-phase separator support (14) is fixed to the inner wall of the cylindrical tank body shell (11), the inside of the cylindrical tank body shell (11) is provided with a guide rail system (16), the liftable three-phase separator (13) and the liftable water distribution device (15) are connected to the guide rail system (16), the upper end of the liftable three-phase separator (13) is fixed with a separator lifting lug (131), and the separator lifting lug (131) is connected to a steel wire rope. The tank top cover (2) comprises a tank top cover shell (21), which is bolted to the upper end of the cylindrical tank body shell (11), the upper end of the tank top cover shell (21) is provided with a top rail (22), the upper end of the tank top cover shell (21) is symmetrically provided with a top manhole one (23) and a top manhole two (24), and the upper end of the tank top cover shell (21) is provided with a breather valve (25). The water inlet mixing pipe (3) comprises a water inlet mixing pipe shell (31), which is provided with a circulating water inlet flange (32) and a sewage water inlet flange (33), the water inlet mixing pipe shell (31) is connected to the liftable water distribution device (15) through a water outlet hose (34), the lower end of the water inlet mixing pipe shell (31) is fixed with a water inlet mixing pipe support (35), and the water inlet mixing pipe support (35) is bolted to the upper end of the tank top cover shell (21). The water seal tank (4) is bolted to the upper end of the tank top cover shell (21).

2. The quick-mountable and maintainable fabricated UASB anaerobic reactor according to claim 1, wherein, The upper edge of the cylindrical tank body shell (11) and the lower edge of the tank top cover shell (21) are designed in an outwardly expanded horizontal flange type structure, the tank top cover shell (21) is bolted to the upper end of the cylindrical tank body shell (11) and connected to the flange type outer edges of the two, and the tank top cover shell (21) and the cylindrical tank body shell (11) are sealed by a rubber sealing ring.

3. The quick-mountable and serviceable fabricated UASB anaerobic reactor according to claim 1, wherein, The guide rail system (16) comprises a T-shaped guide rail (161), a guide rail horizontal support (162), a sliding guide shoe (163) and a guide rail vertical support (164), the guide rail horizontal support (162) is fixedly connected with the inner wall of the cylindrical tank shell (11), the guide rail vertical support (164) is fixed on the inner bottom of the cylindrical tank shell (11), the T-shaped guide rail (161) is connected with the guide rail horizontal support (162) and the guide rail vertical support (164) through bolts, two groups of sliding guide shoes (163) are slidably arranged on the T-shaped guide rail (161), and the two groups of sliding guide shoes (163) are respectively connected with the liftable three-phase separator (13) and the liftable water distribution device (15).

4. The quick-mountable and maintainable fabricated UASB anaerobic reactor according to claim 1, wherein, The liftable water distribution device (15) comprises a fairing (151), a water distributor (152), a water distribution device support (153) and a water distribution device lifting lug (154), the water distributor (152) is connected with the water outlet hose (34), the fairing (151) is connected with the guide rail system (16), the water distributor (152) is fixed in the fairing (151), the water distribution device lifting lug (154) is fixed on the upper end of the fairing (151), the water distribution device lifting lug (154) is connected with the top inner wall of the cylindrical tank shell (11) through a steel wire rope, the fairing (151) is fixed with the water distribution device support (153) at the lower end, and the liftable water distribution device (15) is supported by the water distribution device support (153) and the upper surface of the inner bottom plate of the cylindrical tank shell (11).

5. The quick-mountable and serviceable fabricated UASB anaerobic reactor according to claim 1, wherein, The water outlet weir system (12) comprises a water outlet flange short pipe (121), a water outlet weir support (122) and a water outlet weir (123), the water outlet weir (123) is fixed with the water outlet weir support (122) at the lower end, the water outlet weir support (122) is connected with the inner wall of the cylindrical tank shell (11) through bolts, and the water outlet weir (123) is connected with the external water outlet pipe through the water outlet flange short pipe (121).

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