Rural energy-saving multi-stage sewage treatment device

Abstract

The application discloses a rural energy-saving multistage sewage treatment device, which realizes the flow direction of sewage from a premixing tank-anaerobic reaction tank-oxygen reaction tank by expansion and contraction of the expansion body to realize a positive pressure or a negative pressure state in the anaerobic reaction tank, does not need power equipment, saves power, and has good purification effect through multistage treatment of anaerobic-oxygen. The reflection blocks can increase the expansion degree of the expansion body, and can improve the sewage flow rate and the sewage treatment capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to a sewage treatment device, in particular to a rural energy-saving multi-stage sewage treatment device. BACKGROUND

[0002] Due to the large use of chemical fertilizers and pesticides, and a large amount of domestic sewage, the environment has been seriously polluted in rural areas, which directly affects people's production and living conditions.

[0003] In the prior art, rural sewage treatment still mainly adopts the technical scheme of collecting sewage in a centralized manner, and then constructing an anaerobic reaction tank, an aeration tank and an aerobic reaction tank. However, this method has the problems of large occupation area, large investment and large energy consumption, and it is difficult to adapt to the actual situation of multiple sewage discharge points in rural areas.

[0004] Therefore, it is necessary to develop a rural energy-saving multi-stage sewage treatment device, which has the characteristics of small occupation area, small investment and small energy consumption, and can be applied to the actual situation of multiple sewage discharge points in rural areas. SUMMARY

[0005] The present application discloses a rural energy-saving multi-stage sewage treatment device, which realizes the flow direction of sewage from a premixing tank to an anaerobic reaction tank to an aerobic reaction tank through the expansion and contraction of the expansion body to realize the flow direction of sewage from the premixing tank to the anaerobic reaction tank to the aerobic reaction tank, without the need for power equipment, saving power, and the sewage is treated by multiple stages of anaerobic and aerobic treatment, so that the purification effect is good; the expansion degree of the expansion body can be increased by the reflection block, so that the sewage flow rate and sewage treatment capacity can be improved; two buckled reflection blocks are arranged on the top of the anaerobic reaction tank, and a wind collecting pipe is formed after buckling, so that the expansion body can be cooled at night to increase the contraction degree of the expansion body, and the sewage flow rate and sewage treatment capacity can be improved.

[0006] A rural energy-saving multi-stage sewage treatment device, which comprises a premixing tank 1, the premixing tank 1 is connected with an anaerobic reaction tank 4 through a first communication pipe 3; the anaerobic reaction tank 4 is arranged in a sealed manner, and an expansion body 5 is arranged on the top of the anaerobic reaction tank 4; an annular T-shaped groove is arranged on the top of the anaerobic reaction tank 4, a T-shaped positioning block 6 is arranged in the T-shaped groove, a main supporting rod 7 is connected with the T-shaped positioning block 6 through threads, a vice supporting rod 8 is connected with the main supporting rod 7 through threads, the top of the vice supporting rod 8 is connected with a reflection block 9, and a reflection coating is arranged on the inner arc surface of the reflection block 9; the anaerobic reaction tank 4 is connected with an aerobic reaction tank 13 through a second communication pipe 10; a plurality of groups of isolation plates are arranged in the aerobic reaction tank 13 to divide the aerobic reaction tank 13 into zigzag laminar flow channels, a plurality of air outlets 14 are arranged on the bottom of the aerobic reaction tank 13, and a water outlet 15 is arranged on the aerobic reaction tank 13; electric valves are arranged in the first communication pipe 3 and the second communication pipe 10.

[0007] Furthermore, the top of the expansion body 5 is made of a hard material, and the surface is coated with a dark heat-absorbing coating.

[0008] Furthermore, the premixing tank 1 is provided with a water inlet 2 .

[0009] Furthermore, the anaerobic reaction tank 4 is provided with a silt flushing port 11 .

[0010] Furthermore, bottom wedge blocks 12 are provided at the bottom of the premixing tank 1 and the anaerobic reaction tank 4 so that the first connecting pipe 3 is in a horizontal state and the second connecting pipe 10 is in an inclined state.

[0011] Furthermore, in the aerobic reaction tank 13 , a laminar flow treatment block 16 is installed on top of the isolation plate in contact with the sewage liquid surface.

[0012] Furthermore, the laminar flow processing block 16 is provided with a guide prism 17 which is consistent with the laminar flow direction.

[0013] Furthermore, two buckled reflective blocks 9 are provided on the top of the anaerobic reaction tank 4 .

[0014] Furthermore, one end of the reflective block 9 is large in size and the other end is small in size, and they are fastened together to form an air collecting pipe.

[0015] Advantages of the present invention:

[0016] 1. The present invention creates a positive or negative pressure state in the anaerobic reaction tank through the expansion and contraction of the expansion body, thereby realizing the flow of sewage from the premixing tank - anaerobic reaction tank - aerobic reaction tank. No sewage transportation power equipment is required, saving power. In addition, the sewage undergoes anaerobic-aerobic multi-stage treatment, with good purification effect.

[0017] 2. The reflective block can increase the expansion degree of the expansion body, thereby improving the sewage flow rate and sewage treatment capacity. Two buckled reflective blocks are installed on the top of the anaerobic reaction tank. When buckled, they form an air collecting pipe, which can collect air to cool the expansion body at night, increase the contraction degree of the expansion body, and improve the sewage flow rate and sewage treatment capacity.

[0018] 3. The second connecting pipe is in an inclined state, which can prevent a large amount of activated sludge from settling at the bottom of the anaerobic reaction tank and reduce the desilting frequency of the anaerobic reaction tank; while the premixing tank and aerobic reaction tank can be desilted from the top, and the first connecting pipe can be in a horizontal state;

[0019] 4. Setting up laminar flow treatment blocks and guide prisms can increase the aerobic treatment area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This invention illustrates Figure 1 ;

[0021] Figure 2This invention illustrates Figure 2 ;

[0022] Figure 3 Schematic diagram of the reflective block of the present invention Figure 1 ;

[0023] Figure 4 Schematic diagram of the reflective block of the present invention Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the laminar flow processing block of the present invention;

[0025] In the figure, 1-premixing tank, 2-water inlet, 3-first connecting pipe, 4-anaerobic reaction tank, 5-expansion body, 6-T-shaped positioning block, 7-main support rod, 8-auxiliary support rod, 9-reflection block, 10-second connecting pipe, 11-flushing port, 12-bottom wedge block, 13-aerobic reaction tank, 14-air inlet, 15-drainage port, 16-laminar treatment block, 17-diversion prism DETAILED DESCRIPTION

[0026] Example 1

[0027] A rural energy-saving multi-stage sewage treatment device, which includes a premixing tank 1, a water inlet 2 is provided on the premixing tank 1, and the premixing tank 1 is connected to the anaerobic reaction tank 4 through a first connecting pipe 3; the anaerobic reaction tank 4 is sealed, and an expansion body 5 is provided on the top of the anaerobic reaction tank 4, the top of the expansion body 5 is made of hard material, and the surface is coated with a dark heat-absorbing coating; an annular T-groove is provided on the top of the anaerobic reaction tank 4, a T-shaped positioning block 6 is provided in the T-groove, a main support rod 7 is connected to the T-shaped positioning block 6 by a thread, a secondary support rod 8 is connected to the main support rod 7 by a thread, and the top of the secondary support rod 8 is connected to the reflective block 9; two buckled reflective blocks 9 are provided on the top of the anaerobic reaction tank 4, the inner arc surface of the reflective block 9 is provided with a reflective coating, one end of the reflective block 9 is large and the other end is small The anaerobic reaction tank 4 is small and forms an air collecting pipe after being buckled; the anaerobic reaction tank 4 is provided with a silt flushing port 11, and the anaerobic reaction tank 4 is connected to the aerobic reaction tank 13 through a second connecting pipe 10. A bottom wedge block 12 is provided at the bottom of the premixing tank 1 and the anaerobic reaction tank 4, so that the first connecting pipe 3 is horizontal and the second connecting pipe 10 is inclined; a plurality of groups of isolation plates are provided in the aerobic reaction tank 13 to divide it into a tortuous laminar flow channel, a plurality of air blowing ports 14 are provided at the bottom of the aerobic reaction tank 13, and a drain port 15 is provided on the aerobic reaction tank 13; electric valves are provided in the first connecting pipe 3 and the second connecting pipe 10; a laminar flow treatment block 16 is installed on the top of the isolation plate in contact with the sewage liquid surface in the aerobic reaction tank 13, and a guide prism 17 is provided on the laminar flow treatment block 16 in the same direction as the laminar flow.

[0028] When the above-mentioned rural energy-saving multi-stage sewage treatment device is in operation, sewage and activated sludge are added to the premixing tank. During the night cooling stage, the electric valve in the second connecting pipe is closed, the electric valve in the first connecting pipe is opened, the reflector block is snapped together to form an air collecting pipe, and the degree of contraction of the expansion body is increased. At this time, the sewage flows from the premixing tank into the anaerobic reaction tank for anaerobic treatment. During the daytime heating stage, the electric valve in the first connecting pipe is closed, the electric valve in the second connecting pipe is opened, and the position of the reflector block is adjusted to increase the degree of expansion of the expansion body. At this time, the sewage flows from the anaerobic reaction tank into the aerobic reaction tank for aerobic treatment. The above-mentioned rural energy-saving multi-stage sewage treatment device does not require sewage conveying power equipment, saves power, and is simple to set up. It has the characteristics of small footprint, small investment, and low energy consumption. It can be applied to the actual situation of many rural sewage discharge points.

[0029] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rural energy-saving multi-stage sewage treatment device, characterized by: The rural energy-saving multi-stage sewage treatment device includes a premixing tank, which is connected to the anaerobic reaction tank through a first connecting pipe; the anaerobic reaction tank is sealed, and an expansion body is provided on the top of the anaerobic reaction tank; an annular T-shaped groove is provided on the top of the anaerobic reaction tank, and a T-shaped positioning block is provided in the T-shaped groove. The main support rod is connected to the T-shaped positioning block through a threaded connection, and the auxiliary support rod is connected to the main support rod through a threaded connection. The top of the auxiliary support rod is connected to the reflection block, and the inner arc surface of the reflection block is provided with a reflective coating; The top of the anaerobic reactor is equipped with two snap-on reflective blocks, one end of which is large and the other end is small, forming an air collecting pipe when snapped together. The anaerobic reactor is connected to the aerobic reactor via a second connecting pipe. The aerobic reactor is equipped with multiple groups of isolation plates to divide it into a tortuous laminar flow channel. The bottom of the aerobic reactor is equipped with several air inlets and a drain outlet. The first and second connecting pipes are both equipped with electric valves. The top of the expansion body is made of hard material and coated with a dark heat-absorbing coating. When the above-mentioned rural energy-saving multi-stage sewage treatment device is working, sewage and activated sludge are added to the premixing tank. During the temperature drop at night, the electric valve in the second connecting pipe is closed, the electric valve in the first connecting pipe is opened, and the reflective block is buckled to form an air collecting pipe to increase the degree of contraction of the expansion body. At this time, the sewage flows from the premixing tank into the anaerobic reaction tank for anaerobic treatment; during the temperature rise during the day, the electric valve in the first connecting pipe is closed, the electric valve in the second connecting pipe is opened, and the position of the reflective block is adjusted to increase the degree of expansion of the expansion body. At this time, the sewage flows from the anaerobic reaction tank into the aerobic reaction tank for aerobic treatment.

2. The rural energy-saving multi-stage sewage treatment device according to claim 1 is characterized in that: The premixing tank is provided with a water inlet.

3. The rural energy-saving multi-stage sewage treatment device according to claim 1 is characterized in that: The anaerobic reaction tank is provided with a silt flushing port.

4. The rural energy-saving multi-stage sewage treatment device according to claim 1 is characterized in that: The bottom of the premixing tank and the anaerobic reaction tank are provided with bottom wedge blocks, so that the first connecting pipe is in a horizontal state and the second connecting pipe is in an inclined state.

5. The rural energy-saving multi-stage sewage treatment device according to claim 1 is characterized in that: In the aerobic reaction tank, a laminar flow treatment block is installed on the top of the isolation plate in contact with the sewage liquid surface.

6. The rural energy-saving multi-stage sewage treatment device according to claim 5 is characterized in that: The laminar flow processing block is provided with a flow guiding prism consistent with the laminar flow direction.

Images