SAD fluidized bed reactor for sewage treatment
By designing a SAD fluidized bed reactor with the functions of rubbing, stirring and spreading, the problems of blockage and uneven dispersion of sulfur autotrophic fillers during feeding are solved, and efficient sewage treatment is achieved.
Patent Information
- Application Number
- CN202422133749.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-30
AI Technical Summary
When adding sulfur autotrophic filler, existing SAD fluidized bed reactors are prone to agglomeration, resulting in blockage and uneven dispersion, affecting the efficiency of wastewater purification reaction.
A SAD fluidized bed reactor with a scrubbing part, a scrubbing part and a scrubbing part is designed. The scrubbing rod and a scrubbing plate are driven by a dual-axis motor to perform initial stirring and rolling of sulfur autotrophic filler, and uniform spreading of the material is achieved by rotating the tube and the material separation box to avoid blockage and improve reaction efficiency.
It effectively avoids filler blockage, improves the cutting efficiency of sulfur self-raising filler and the reaction rate with sewage, and enhances the sewage treatment effect.
Smart Images
Figure CN223060801U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment, in particular to a SAD fluidized bed reactor for sewage treatment. Background Technique
[0002] Sulphur autotrophic denitrification, abbreviated as SAD, is a representative process of autotrophic denitrification. Due to its advantages of low sludge production, low energy consumption, no need to add expensive carbon sources and no secondary pollution, it has received extensive attention at home and abroad and is considered a potential cost-effective alternative process to heterotrophic denitrification. It has been gradually applied to the fields of urban sewage, industrial wastewater, surface water and groundwater treatment polluted by nitrates, and drinking water treatment, etc.
[0003] At present, when treating sewage by using the SAD technology, it is necessary to add a certain amount of sulphur autotrophic filler to the sewage, which mainly includes a porous carrier and elemental sulphide. Since during the feeding process, the porous carrier and elemental sulphide are prone to caking during storage, when adding them to the feeding pipe for feeding, there may be a phenomenon of blockage, and it is difficult to uniformly disperse the sulphur autotrophic filler into the sewage, resulting in the problem of uneven accumulation and dispersion of the added sulphur autotrophic filler, thereby having a certain impact on the purification reaction of the sewage.
[0004] In view of this, a SAD fluidized bed reactor for sewage treatment with the functions of rolling and dispersing materials and uniformly spreading materials is specifically proposed to solve the technical problems existing in the above background technique. Content of the Utility Model
[0005] In order to overcome the disadvantages that the existing SAD fluidized bed reactor is not convenient for rolling, dispersing and uniformly spreading the sulphur autotrophic filler when adding the sulphur autotrophic filler, the technical problem is: to provide a SAD fluidized bed reactor for sewage treatment with the functions of rolling and dispersing materials and uniformly spreading materials.
[0006] The technical solution of the utility model is: a SAD fluidized bed reactor for sewage treatment, which includes a mounting frame, a support seat, a reactor, a water inlet pipe, a water outlet pipe and a vortex distributor, and further includes a rubbing and dispersing part, a stirring part and a material spreading part. A rubbing and dispersing part is arranged at the top of the reactor. The rubbing and dispersing part includes a support frame, a mixing tank, a feeding pipe, a rotating rod, a driving part, a rubbing disc and interference bars. A support frame is arranged at the top of the reactor. The upper part of the support frame is sleeved with a mixing tank. The feeding pipe is connected and communicated at an eccentric position at the top of the mixing tank. The rotating rod is rotatably sleeved in the mixing tank through a connecting frame, and the upper end of the rotating rod penetrates upward through the mixing tank. The lower part of the rotating rod is sleeved with a rubbing disc. The interference bars are circumferentially and spacedly distributed at the bottom inside the mixing tank. A driving part for driving the rotating rod is arranged outside the support frame. A stirring part is sleeved on the upper part of the rotating rod. A material spreading part is connected between the bottom of the mixing tank and the driving part.
[0007] As an improvement to the above solution, the stirring member includes a bushing and a stirring rod. The upper part of the rotating rod is sleeved with a bushing, and the stirring rods are spirally and spaced circumferentially and axially on the bushing.
[0008] As an improvement to the above solution, the material spreading member includes a rotating pipe, a connecting pipe, and a material distributing box. The bottom of the mixing tank is rotatably connected and communicated with a rotating pipe. The bottom end of the rotating pipe is connected and communicated with a connecting pipe. The bottom end of the connecting pipe is connected and communicated with a material distributing box, and the bottom of the material distributing box is evenly and spacedly provided with material discharging holes.
[0009] As an improvement to the above solution, the rubbing disc is composed of two frustum-shaped columns combined up and down.
[0010] As an improvement to the above solution, the driving member includes a double-shaft motor and a belt transmission member. The double-shaft motor is installed outside the support frame through a bracket. The output shaft on the upper side of the double-shaft motor is drivingly connected to the rotating rod through the belt transmission member, and the output shaft on the lower side of the double-shaft motor is also drivingly connected to the rotating pipe through the belt transmission member.
[0011] As an improvement to the above solution, a material guiding member is further included, and a material guiding member corresponding to the material discharging holes is arranged at the bottom of the material distributing box.
[0012] The beneficial effects of the present utility model are as follows: When the double-shaft motor is started, under the driving action of the belt transmission member, the stirring rod and the rubbing disc can be driven to rotate synchronously. Then, the stirring rod can preliminarily stir and disperse the added sulfur autotrophic filler, and through the cooperation of the rubbing disc and the interference strips, the preliminarily dispersed sulfur autotrophic filler can be further rolled and rubbed to be dispersed, which is beneficial to improving the feeding efficiency of the sulfur autotrophic filler and avoiding blockage; and under the driving action of the belt transmission member, the rotating pipe, the connecting pipe, and the material distributing box can be driven to rotate synchronously, which is beneficial to evenly spreading the dispersed sulfur autotrophic filler into the sewage, and thus is beneficial to improving the reaction rate between the sulfur autotrophic filler and the sewage. Description of the Drawings
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.
[0014] Figure 2 It is a sectional view of the present utility model.
[0015] Figure 3 It is a sectional view of the rubbing and dispersing member, the stirring member, and the material spreading member of the present utility model.
[0016] Figure 4 It is a connection structural schematic diagram of the rubbing and dispersing member and the stirring member of the present utility model.
[0017] Figure 5It is a cross-sectional view of the material spreading member of the utility model.
[0018] Explanation of the accompanying drawings: 1_mounting frame, 2_support base, 3_reactor, 4_water inlet pipe, 5_water outlet pipe, 6_vortex distributor, 7_feeding port, 8_support frame, 9_mixing tank, 10_feeding pipe, 11_rotating rod, 111_dual-axis motor, 112_belt transmission, 12_rubbing plate, 13_interference bar, 14_stirring rod, 15_rotating tube, 16_connecting tube, 17_material distribution box, 18_material guide. DETAILED DESCRIPTION
[0019] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.
[0020] Embodiment: The utility model proposes a SAD fluidized bed reactor for sewage treatment, see Figures 1-5 As shown, it includes a mounting frame 1, a support seat 2, a reactor 3, an inlet pipe 4, an outlet pipe 5, an eddy current distributor 6, a rubbing piece, a stirring piece and a spreading piece. The mounting frame 1 is provided with a support seat 2 on the top, and the reactor 3 is installed between the mounting frame 1 and the support seat 2. The upper outer wall of the reactor 3 is connected and communicated with the inlet pipe 4, and the bottom of the reactor 3 is connected and communicated with the outlet pipe 5. The upper end of the outlet pipe 5 is rotatably covered with an eddy current distributor 6, and the eddy current distributor 6 is located at the bottom of the reactor 3. A feed port 7 is opened in the middle of the top of the reactor 3. A rubbing piece is provided on the top of the reactor 3. The rubbing piece includes a supporting frame 8, a mixing tank 9, a feeding pipe 10, a rotating rod 11, a driving piece, a rubbing disc 12 and an interfering strip 13. The reactor 3 is provided with a supporting frame 8 on the top, and a mixing tank 9 is covered on the upper part of the supporting frame 8. The eccentric position of the top of the mixing tank 9 is connected and A feed pipe 10 is connected, and a rotating rod 11 is rotatably sleeved in the mixing tank 9 through a connecting frame, and the upper end of the rotating rod 11 passes through the mixing tank 9 upward, and a rubbing plate 12 is sleeved at the lower part of the rotating rod 11. Interference strips 13 are distributed at intervals along the circumferential direction at the bottom of the mixing tank 9. The rubbing plate 12 is composed of two upper and lower truncated cone-shaped columns, wherein the upper column can play a role in stirring and dispersing the sulfur self-feeding filler, and the lower column can cooperate with the interference strips 13 to crush and rub the sulfur self-feeding filler. A driving member is arranged on the outer side of the support frame 8, and a stirring member is sleeved on the upper part of the rotating rod 11. A spreading member is connected between the bottom of the mixing tank 9 and the driving member, and the rotating rod 11, the rubbing plate 12, the stirring member and the spreading member can be driven by the driving member to rotate synchronously, so that the sulfur self-feeding filler can be crushed and scattered at the same time.
[0021] For further information, see Figures 2-4As shown, the stirring member includes a shaft sleeve and a stirring rod 14. The shaft sleeve is sleeved on the upper part of the rotating rod 11, and the stirring rods 14 are distributed on the shaft sleeve in a spiral manner along the circumferential direction and the axial direction. The stirring rods 14 are evenly spaced and carefully distributed, which is beneficial to the purpose of preliminary dispersion of the agglomerated sulfur autotrophic filler.
[0022] For further information, see Figure 2 , Figure 3 and Figure 5 As shown, the spreading member includes a rotating tube 15, a connecting tube 16 and a distributing box 17. The bottom of the mixing tank 9 is rotatably connected and communicated with the rotating tube 15. The bottom end of the rotating tube 15 is connected and communicated with the connecting tube 16. The connecting tube 16 is designed as an inclined structure, which is beneficial to guiding the discharging of the sulfur self-supporting filler after being rubbed and thus helps to avoid blockage. The bottom end of the connecting tube 16 is connected and communicated with the distributing box 17, and the bottom of the distributing box 17 is evenly spaced with discharging holes, which is beneficial to evenly spreading the sulfur self-supporting filler after being rubbed and dispersed.
[0023] For further information, see Figures 1-3 As shown, the driving member includes a dual-axis motor 111 and a belt transmission member 112. The dual-axis motor 111 is installed on the outer side of the support frame 8 through a bracket. The output shaft on the upper side of the dual-axis motor 111 is connected to the rotating rod 11 through the belt transmission member 112, and the output shaft on the lower side of the dual-axis motor 111 is connected to the rotating tube 15 through the belt transmission member 112. Through the transmission action of the belt transmission members 112 on the upper and lower sides, the sulfur autotrophic filler added to the mixing tank 9 can be stirred and crushed while rotating and evenly spreading along the inside of the reactor 3, which is conducive to evenly spreading the sulfur-rewarding autotrophic filler into the sewage.
[0024] In addition, see Figure 3 and Figure 5 As shown, a material guide 18 is also included. The bottom of the material distribution box 17 is provided with a material guide 18 corresponding to the material discharge hole. The material guide 18 is helpful to guide the scattered sulfur self-supporting filler into the material discharge hole, which is beneficial to evenly spread the sulfur self-supporting filler.
[0025] When in use, sewage is introduced into the reactor 3 through the water inlet pipe 4. When it is necessary to gradually add sulfur autotrophic fillers (hereinafter referred to as fillers) to the sewage in the reactor 3, the fillers can be added into the mixing tank 9 through the feed pipe 10, and the dual-axis motor 111 is started. Through the transmission effect of the belt transmission part 112, the rotating rod 11, the stirring rod 14 and the rubbing plate 12 can be driven to rotate synchronously, and then the added fillers can be preliminarily dispersed under the toggling of the stirring rod 14; and the rubbing plate 12 and the interference strip 13 can be rubbed together to achieve the purpose of preliminarily breaking up the added fillers. The broken filler is crushed and rubbed to improve the efficiency of rubbing the filler to avoid clogging of the filler during the feeding process; after the filler is crushed and rubbed, it will be introduced into the distribution box 17 through the rotating tube 15 and the connecting tube 16, and then through the feeding hole inside the distribution box 17, the filler inside can be driven by the belt transmission part 112 while rotating and evenly scattered into the sewage, so that the scattered filler can react chemically with the sewage, which is beneficial to improve the efficiency of sewage treatment.
[0026] The above description is only an example of the implementation of the present invention and is not intended to limit the present invention. Any equivalent replacement made within the principle of the present invention shall be included in the protection scope of the present invention. The contents not elaborated in the present invention belong to the existing technology known to the technicians in this professional field.
Claims
1. A SAD fluidized bed reactor for sewage treatment, comprising a mounting frame (1), a support base (2), a reactor (3), a water inlet pipe (4), a water outlet pipe (5) and a vortex distributor (6), characterized in that: It further includes a disintegrating member, a stirring member and a material spreading member. A disintegrating member is provided at the top of the reactor (3). The disintegrating member includes a support frame (8), a mixing tank (9), a feed pipe (10), a rotating rod (11), a driving member, a rubbing disc (12) and interference bars (13). A support frame (8) is provided at the top of the reactor (3). The upper part of the support frame (8) is sleeved with a mixing tank (9). The feed pipe (10) is connected and communicated with the mixing tank (9) at an eccentric position at the top. The rotating rod (11) is rotatably sleeved in the mixing tank (9) through a connecting frame, and the upper end of the rotating rod (11) extends upward out of the mixing tank (9). The rubbing disc (12) is sleeved on the lower part of the rotating rod (11). The interference bars (13) are circumferentially and spacedly distributed along the bottom of the inner part of the mixing tank (9). A driving member for driving the rotating rod (11) is arranged outside the support frame (8). The upper part of the rotating rod (11) is sleeved with a stirring member. A material spreading member is connected between the bottom of the mixing tank (9) and the driving member.
2. The SAD fluidized bed reactor for sewage treatment according to claim 1, characterized in that: The stirring member includes a shaft sleeve and stirring rods (14). The upper part of the rotating rod (11) is sleeved with a shaft sleeve, and the stirring rods (14) are spirally and spacedly distributed along the circumference and the axis on the shaft sleeve.
3. The SAD fluidized bed reactor for sewage treatment according to claim 1, characterized in that: The material spreading member includes a rotating pipe (15), a connecting pipe (16) and a material distributing box (17). The bottom of the mixing tank (9) is rotatably connected and communicated with the rotating pipe (15). The bottom end of the rotating pipe (15) is connected and communicated with the connecting pipe (16). The bottom end of the connecting pipe (16) is connected and communicated with the material distributing box (17), and the bottom of the inner part of the material distributing box (17) is evenly and spacedly provided with blanking holes.
4. The SAD fluidized bed reactor for sewage treatment according to claim 1, wherein: The rubbing disc (12) is composed of two frustum-shaped columns combined up and down.
5. The SAD fluidized bed reactor for sewage treatment according to claim 3, characterized in that: The driving member includes a double-shaft motor (111) and a belt transmission member (112). The double-shaft motor (111) is installed outside the support frame (8) through a bracket. The output shaft on the upper side of the double-shaft motor (111) is in transmission connection with the rotating rod (11) through the belt transmission member (112), and the output shaft on the lower side of the double-shaft motor (111) is also in transmission connection with the rotating pipe (15) through the belt transmission member (112).
6. The SAD fluidized bed reactor for sewage treatment according to claim 3, wherein: It further includes a material guiding member (18). The material guiding member (18) corresponding to the blanking holes is arranged at the bottom of the inner part of the material distributing box (17).