Circulating fluidization device

Abstract

A circulating fluidization device comprises a suspended filler chamber, a sliding cylinder type carbon source chamber and a microbial carrier chamber. The suspended filler chamber comprises a mounting area, a filling area, a porous filter filler foundation and a communicating hole. The installation area comprises a supporting ring and a concave clamping groove. The sliding cylinder type carbon source chamber comprises a cylinder body, a rotating shaft, a stirring rod, a feeding hole, a sealing cover, a lifting handle, a blow-down pipe and spherical solid filler. The microbial carrier chamber comprises a polyurethane sponge filler and a convex clamping groove. Compared with the prior art, the spherical solid filler reacts with the water body in a stirring manner, sewage treatment is performed, a carbon source is released, pressurization is performed through the water pump, the contact rate with the spherical solid filler is increased, the filler dissolving speed is high, and the device is suitable for various water body environments, low in equipment cost and easy to popularize. The method is suitable for sewage treatment. Meanwhile, the equipment is directly put into a water area for use, is suitable for sewage action in different environments, and is wide in application range and low in equipment cost.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to a circulating fluidization device. Background Art

[0002] As the country's requirements for environmental protection increase, deep nitrogen and phosphorus removal has become the current top priority in the water treatment industry. Fluidized fillers are usually used as biological carriers in sewage biofilm methods, such as fluidized fillers moving in water used in fluidized bed processes, which degrade organic matter in sewage through microorganisms attached to the filler surface. The circulating fluidization of biological suspended fillers has become the technical key to the promotion of this technology.

[0003] Existing biological suspension filler circulating fluidization mostly adopts the method of biochemical pool, which is divided into corridor biochemical pool and endless circulating biochemical pool. There are problems such as small application range, large power demand of equipment, and fixed position installation of equipment.

[0004] For example, Chinese utility model CN201922365600.9 discloses a suspended filler circulating fluidized bed device and a biochemical reaction pool, comprising a reflux barrel passing through a first wall and arranged near a water inlet, and a pusher arranged in the circulating pool opposite to the reflux barrel, wherein the pushing direction of the pusher is toward the reflux barrel, the two ends of the reflux barrel are connected, and an openable and closable anti-backflow gate is provided in the reflux barrel.

[0005] Although the power of the equipment is reduced and the power consumption is reduced by setting up a separate fluidizing device, it needs to be used in a biochemical pool for sewage treatment, such as an aerobic biochemical pool or an anaerobic biochemical pool, and cannot be used in conventional water bodies or other sewage treatment pools, and has certain limitations. Utility Model Content

[0006] In view of this, the utility model provides a circulating fluidization device to solve the above technical problems.

[0007] A circulating fluidized bed device includes a hanging packing chamber, a sliding cylinder carbon source chamber arranged in the hanging packing chamber, and a microorganism carrier chamber arranged on the sliding cylinder carbon source chamber. The hanging packing chamber includes a mounting area arranged in the center of the hanging packing chamber, a filling area arranged adjacent to the mounting area, a plurality of porous filter packing bases arranged at the bottom of the hanging packing chamber, and a plurality of connecting holes arranged on the outer wall of the hanging packing chamber. The mounting area is a rectangular space located at the center of the hanging packing chamber, including a support ring located at the bottom of the mounting area, and a concave card slot located on the side wall of the mounting area. The filling area is arranged adjacent to the mounting area. The sliding cylinder carbon source chamber includes a barrel, a rotating shaft arranged in the barrel, a plurality of stirring rods arranged on the rotating shaft, a feeding hole opened at the top of the barrel, a sealing cover arranged on the feeding hole, a lifting handle arranged on one side of the feeding hole, a venting pipe arranged at the bottom of the barrel, and a spherical solid filler filled in the barrel. The rotating shaft is arranged at the axis center of the barrel, and one end thereof passes through the barrel top of the barrel. The venting pipe is arranged at the bottom of the barrel, and is provided with a venting valve. The microorganism carrier chamber comprises a polyurethane sponge filler filled in the microorganism carrier chamber, and a convex groove arranged on the outer wall. The convex groove and the concave groove are mutually buckled.

[0008] Furthermore, the hanging packing chamber is a rectangular structure, the sliding cylinder type carbon source chamber is a cylindrical structure inserted in the hanging packing chamber and coincides with the center of the hanging packing chamber, and the microbial carrier chamber is located between the hanging packing chamber and the sliding cylinder type carbon source chamber, with one side being clamped in the hanging packing chamber and the other side being tightly attached to the sliding cylinder type carbon source chamber.

[0009] Furthermore, the support ring is a circular snap-in groove, the concave snap-in groove is arranged on the side walls of the installation area and the filling area, and is located on the side close to the installation area, and the groove direction is the radial direction of the slide-type carbon source chamber, and the extension direction of the concave snap-in groove is the axial direction of the slide-type carbon source chamber.

[0010] Furthermore, the filling area includes a plurality of movable brackets arranged in the filling area, and an inspection cover located on the top of the filling area.

[0011] Furthermore, the barrel adopts a cylindrical structure, and the bottom of the barrel is conical.

[0012] Furthermore, the rotating shaft is connected to a submersible motor, and the submersible motor is fixed on the outside of the top of the cylinder body. A water inlet is opened on the top of the cylinder body.

[0013] Furthermore, the stirring rod is located inside the barrel, vertically and fixed on the rotating shaft.

[0014] Furthermore, the spherical solid filler has a modified lignin composite filler built in, and adopts a spherical shell, and the shell material is PVC.

[0015] Compared with the prior art, the circulating fluidized bed device provided by the utility model is used to accommodate the spherical solid filler by setting the sliding cylinder carbon source chamber, so that the spherical solid filler reacts with the water body by stirring, performs sewage treatment and releases the carbon source, and is pressurized by a water pump so that the water body flows quickly, speeds up the contact rate with the spherical solid filler, and the filler dissolves quickly, which is suitable for various water environments, and the equipment cost is low, and it is suitable for sewage treatment. At the same time, by setting the microbial carrier chamber, while fixing the sliding cylinder carbon source chamber, the polyurethane sponge filler is filled as a biofilm carrier for sewage treatment, and is in direct contact with the water body for attaching microorganisms in the sewage. By setting the hanging filler chamber, the hanging filler is filled, sewage treatment is performed, and direct contact is made with the water body, the sewage treatment efficiency is high, and the equipment is directly put into use in the water area, which is suitable for sewage in different environments, has a wide range of applications, and has a low equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a schematic structural diagram of a circulating fluidized bed device.

[0017] Figure 2 for Figure 1 A schematic cross-sectional view of a suspended packing chamber of a circulating fluidized bed device.

[0018] Figure 3 for Figure 1 A schematic cross-sectional view of a sliding cylinder type carbon source chamber of a circulating fluidized bed device.

[0019] Figure 4 for Figure 1 A schematic cross-sectional view of a microbial carrier chamber of a circulating fluidized bed device.

[0020] Figure 5 for Figure 1 A schematic cross-sectional view of a spherical solid filler in a circulating fluidized bed device. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0022] like Figures 1 to 5As shown, it is a schematic diagram of the structure of the circulating fluidized device provided by the utility model. The circulating fluidized device includes a hanging packing chamber 10, a sliding cylinder carbon source chamber 20 arranged in the hanging packing chamber 10, and a microbial carrier chamber 30 arranged on the sliding cylinder carbon source chamber 20. It can be imagined that the circulating fluidized device also includes some other functional modules such as photovoltaic panels, electrical cabinets, aeration fans, etc., which are well known to those skilled in the art and will not be described one by one here.

[0023] The hanging stuffing chamber 10 is a rectangular structure, the sliding cylinder carbon source chamber 20 is a cylindrical structure inserted in the hanging stuffing chamber 10, and coincides with the center of the hanging stuffing chamber 10, and the microbial carrier chamber 30 is located between the hanging stuffing chamber 10 and the sliding cylinder carbon source chamber 20, with one side being clamped in the hanging stuffing chamber 10 and the other side being tightly attached to the sliding cylinder carbon source chamber 20.

[0024] The hanging stuffing chamber 10 includes an installation area 11 arranged in the center of the hanging stuffing chamber 10, a filling area 12 arranged adjacent to the installation area 11, a plurality of porous filtering stuffing bases 13 arranged at the bottom of the hanging stuffing chamber 10, and a plurality of connecting holes 14 arranged on the outer wall of the hanging stuffing chamber 10.

[0025] The installation area 11 is a rectangular space located at the center of the suspension filling chamber 10, which is used to install the microbial carrier chamber 30, and includes a support ring 111 located at the bottom of the installation area 11, and a concave card groove 112 located on the side wall of the installation area 11. The support ring 111 is a circular card groove for inserting the slide-type carbon source chamber 20. The concave card groove 112 is arranged on the side walls of the installation area 11 and the filling area 12, and is located on a side close to the installation area 11, and the groove direction is the radial direction of the slide-type carbon source chamber 20, and the extension direction of the concave card groove 112 is the axial direction of the slide-type carbon source chamber 20, so as to insert and card the microbial carrier chamber 30.

[0026] The filling area 12 is arranged adjacent to the installation area 11, and includes a plurality of movable brackets 121 arranged in the filling area 12, and an inspection cover 122 located at the top of the filling area 12. The movable bracket 121 can be a grid-like frame structure fixed in the filling area 12 by a structure such as a buckle or a hook, so as to accommodate and fill the hanging filler. The hanging filler is a common technology in sewage treatment technology and should be well known to those skilled in the art, so only a brief description is given here. The inspection cover 122 is arranged at the top of the side of the filling area 12 away from the porous filter filler base 13, and can be fixed by hinges and latches to facilitate the replacement of the hanging filler.

[0027] The porous filter filler base 13 is arranged at the bottom of the suspended filler chamber 10, and provides the required air to the suspended filler chamber 10 through aeration. The average pore size is 1mm-3mm, which is used to prevent the spherical solid filler from running out of the device when subjected to external forces, such as hydraulic impact of a circulation pump or a reflux pump, and also has a filtering function.

[0028] The connecting hole 14 is provided on the outer side wall of the suspension filler chamber 10 away from the microorganism carrier chamber 30, and is used to connect the inside and outside of the suspension filler chamber 10. The pore shape and size of the connecting hole 14 are set according to the particle size of the suspension filler filled therein, specifically so that the suspension filler cannot pass through the connecting hole 14, which is not specifically limited here. In this embodiment, the connecting hole 14 adopts an adjusted rectangular hole to have a faster flow efficiency.

[0029] The sliding cylinder type carbon source chamber 20 includes a cylinder body 21, a rotating shaft 22 arranged in the cylinder body 21, a plurality of stirring rods 23 arranged on the rotating shaft 22, a feeding hole 24 opened at the top of the cylinder body 21, a sealing cover 25 arranged on the feeding hole 24, a lifting handle 26 arranged on one side of the feeding hole 24, a venting pipe 27 arranged at the bottom of the cylinder body 21, and a spherical solid filler 28 filled in the cylinder body 21.

[0030] The cylinder body 21 is a cylindrical structure, which is used to accommodate the spherical solid filler 28 and react it with sewage. The bottom of the cylinder body 21 is conical, so as to facilitate the discharge and replacement of the filler.

[0031] The rotating shaft 22 is arranged at the axis of the barrel 21, and one end thereof passes through the top of the barrel 21. When water flows in from the top of the barrel 21, the water flows impact on the rotating shaft 22 and the stirring rod 23 under the action of the water pump, driving the rotating shaft 22 and the stirring rod 23 to rotate. At the same time, in order to enhance the stirring efficiency, an embodiment is provided, wherein the rotating shaft 22 is connected to a submersible motor, which is fixed to the outside of the top of the barrel 21 and is used to drive the rotating shaft 22 to rotate. Accordingly, a water inlet for inserting a water inlet pipe is also required to be opened at the top of the barrel 21. The above-mentioned submersible motor and water inlet are common contents in the prior art, so they are only briefly described in the specification, and are not illustrated.

[0032] The stirring rod 23 is located in the barrel 21, vertically fixed on the rotating shaft 22, so as to stir the spherical solid filler 28 filled in the barrel 21 when the rotating shaft 22 rotates, so as to make the reaction more complete.

[0033] The feeding hole 24 is arranged at the top of the barrel body 21 for adding the spherical solid filler 28. The sealing cover 25 is arranged on the feeding hole 24, which is opened when the filler is filled and is normally closed at other times.

[0034] The lifting handle 26 is disposed at the top of the barrel body 21 to lift the sliding barrel type carbon source chamber 20 out of the microorganism carrier chamber 30 for replacement of fillers and routine maintenance.

[0035] The vent pipe 27 is arranged at the bottom of the cylinder body 21 and is provided with a vent valve 271 to discharge the spherical solid filler 28 in the cylinder body 21 when opened. Accordingly, the vent pipe 27 is normally closed.

[0036] The spherical solid filler 28 has a modified lignin composite filler built in, which improves the carbon release performance of the lignin-based composite carbon-release filler and the utilization efficiency of the solid carbon source, and solves the problem of low denitrification efficiency caused by insufficient carbon source in the denitrification process of sewage treatment. At the same time, the spherical solid filler 28 adopts a spherical shell, so that the fluidization state of the filler is better when used, and the friction between the shells is small. The shell material of the spherical solid filler 28 is generally made of PVC material to obtain a strong corrosion resistance effect.

[0037] The microorganism carrier chamber 30 is a rectangular structure, the central axis of which is arranged close to the suspension filler chamber 10, and includes a polyurethane sponge filler 31 filled in the microorganism carrier chamber 30, and a convex groove 32 arranged on the outer wall.

[0038] The polyurethane sponge filler 31 is used as a biofilm carrier for sewage treatment and has the characteristics of rich porosity. Its porous three-dimensional mesh cubic structure makes it easier for microorganisms to attach and form biofilms, and has the advantage of fast biofilm removal. At the same time, the amount of sludge generated is small, which can effectively improve the sewage treatment capacity of the filler.

[0039] The convex groove 32 and the concave groove 112 are interlocked with each other, so that the microorganism carrier chamber 30 is more stable when connected to the suspension filler chamber 10 without shaking or displacement.

[0040] When in use, the entire device is placed in an area where sewage treatment is required, and the suspended filler chamber 10 and the microbial carrier chamber 30 are immersed in water and contact the water body respectively, so that the sewage contacts the polyurethane sponge filler 31 and the suspended filler in the filling area 12 in turn to perform sewage treatment. At the same time, the sewage is pumped into the sliding cylinder carbon source chamber 20 by a water pump, so that the spherical solid filler 28 contacts the water body and continuously releases the carbon source to enhance the sewage treatment effect.

[0041] Compared with the prior art, the circulating fluidized device provided by the utility model is used to accommodate the spherical solid filler 28 by setting the sliding cylinder carbon source chamber 20, so that the spherical solid filler 28 reacts with the water body by stirring, performs sewage treatment and releases the carbon source, and is pressurized by a water pump so that the water body flows quickly, speeds up the contact rate with the spherical solid filler 28, and the filler dissolves quickly, is applicable to various water environments, and has low equipment cost, and is applicable to sewage treatment. At the same time, by setting the microbial carrier chamber 30, while fixing the sliding cylinder carbon source chamber 20, the polyurethane sponge filler 31 is filled as a biofilm carrier for sewage treatment, and is in direct contact with the water body for attaching microorganisms in sewage. By setting the hanging filler chamber 10, the hanging filler is filled, sewage treatment is performed, and is in direct contact with the water body, the sewage treatment efficiency is high, and the equipment is directly put into the water area for use, which is applicable to sewage in different environments, has a wide range of applications, and has low equipment cost.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A circulating fluidized bed device, characterized in that: The circulating fluidized bed device includes a hanging packing chamber, a sliding cylinder carbon source chamber arranged in the hanging packing chamber, and a microbial carrier chamber arranged on the sliding cylinder carbon source chamber. The hanging packing chamber includes an installation area arranged in the center of the hanging packing chamber, a filling area arranged adjacent to the installation area, a plurality of porous filtering packing bases arranged at the bottom of the hanging packing chamber, and a plurality of connecting holes arranged on the outer wall of the hanging packing chamber. The installation area is a rectangular space located at the center of the hanging packing chamber, including a support ring located at the bottom of the installation area, and a concave card groove located on the side wall of the installation area. The filling area is arranged adjacent to the installation area. The sliding cylinder carbon source chamber includes A barrel, a rotating shaft arranged in the barrel, a plurality of stirring rods arranged on the rotating shaft, a feeding hole opened at the top of the barrel, a sealing cover arranged on the feeding hole, a lifting handle arranged on one side of the feeding hole, a venting pipe arranged at the bottom of the barrel, a spherical solid filler filled in the barrel, the rotating shaft is arranged at the axis of the barrel, one end of which passes through the top of the barrel, the venting pipe is arranged at the bottom of the barrel and is provided with a venting valve, the microbial carrier chamber includes a polyurethane sponge filler filled in the microbial carrier chamber, and a convex groove arranged on the outer wall, the convex groove and the concave groove are interlocked.

2. The circulating fluidized bed device according to claim 1, characterized in that: The hanging packing chamber is a rectangular structure, the sliding cylinder carbon source chamber is a cylindrical structure inserted in the hanging packing chamber and coincides with the center of the hanging packing chamber, and the microbial carrier chamber is located between the hanging packing chamber and the sliding cylinder carbon source chamber, with one side being clamped in the hanging packing chamber and the other side being tightly attached to the sliding cylinder carbon source chamber.

3. The circulating fluidized bed device according to claim 1, characterized in that: The support ring is a circular snap-in groove, the concave snap-in groove is arranged on the side walls of the installation area and the filling area, and is located on the side close to the installation area, and the groove direction is the radial direction of the slide-type carbon source chamber, and the extension direction of the concave snap-in groove is the axial direction of the slide-type carbon source chamber.

4. The circulating fluidized bed device according to claim 1, characterized in that: The filling area includes a plurality of movable brackets arranged in the filling area, and an inspection cover plate located on the top of the filling area.

5. The circulating fluidized bed device according to claim 1, characterized in that: The cylinder body adopts a cylindrical structure, and the bottom of the cylinder body is conical.

6. The circulating fluidized bed device according to claim 1, characterized in that: The rotating shaft is connected to a submersible motor, which is fixed on the outside of the top of the cylinder body. A water inlet is provided on the top of the cylinder body.

7. The circulating fluidized bed device according to claim 1, characterized in that: The stirring rod is located in the cylinder body, vertically and fixed on the rotating shaft.

8. The circulating fluidized bed device according to claim 1, characterized in that: The spherical solid filler has a modified lignin composite filler built in, and adopts a spherical shell, and the shell material is PVC.

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