CN205347166U - Three manure pits of formatting - Google Patents

Abstract

The utility model discloses a three-compartment septic tank. The key points of the technical scheme are that the tank body includes an upper tank body and a lower tank body which can be connected to each other, and the upper tank body and the lower tank body are integrally formed by plastic injection molding. , there are two partitions in the pool body, and the partition board divides the inner space of the upper pool body and the lower pool body into the first cavity, the second cavity, and the third cavity through which the water flow passes sequentially, and the two sides of the upper pool body There is a main sewage inlet for sewage to enter, the main sewage inlet connects the first cavity with the outside world, and there is a rib in the main sewage inlet to facilitate the placement of pipelines. Utilizing the upper tank body and the lower tank body structure of the plastic structure can greatly save the cost of the entire septic tank production, and it is easy to process, can be produced in batches, and has sufficient corrosion resistance. In practical application, it is more convenient to open on the side with multiple angles, which is convenient for the connection and laying of pipelines.

Description

Three compartment septic tank

technical field

The utility model relates to the field of sewage treatment equipment, in particular to a three-compartment septic tank.

Background technique

The application of traditional septic tanks has a history of more than 100 years. It was originally used as a feces interception facility to avoid pipeline blockage. It plays an active role in intercepting and settling large particles in sewage, preventing pipeline blockage, and protecting the environment. . The technical principle is the contact mode of sewage and sludge. The deposited sludge is digested and degraded to produce digested gas such as methane, carbon dioxide, and hydrogen sulfide. Due to the flotation of digested gas, the sludge is disturbed, and the disturbing effect of digested gas on sludge can be Let the sludge and biological flora mix more fully, which is helpful for digestion and degradation. However, the sludge at the bottom rises with the digested gas, and after the air bubbles escape, the sludge settles down again, and the sludge that rises and settles pollutes the sewage again. Under the contact and mixing of septic tank sewage and sludge, the sedimentation and effluent water quality of the septic tank are affected. It is necessary to prolong the sewage residence time to improve the sedimentation effect and effluent water quality. The sewage residence time is generally 12-24 hours. Because traditional septic tanks are built with masonry, cement and mortar, they have their own defects. According to incomplete statistics, more than 95% of sewage treatment tanks (septic tanks) begin to leak after 1-2 years of use. , Seriously pollute the groundwater source; some septic tanks are easy to cause different degrees of inclination of buildings due to the subsidence of the foundation. Traditional septic tanks have low technical content, poor corrosion function, simple manufacturing process, easy to leak, easy to block, easy to freeze, and short cleaning cycle, which brings inconvenience to daily life and cannot meet the requirements of environmental protection and construction.

Existing notification number is: the Chinese patent of CN103864276B, it provides a kind of high-strength, small large three-grid buried integral septic tank of floor area. Its reinforced concrete structure can ensure the stability of the whole during use, and it is not easy to leak.

However, because it is made of reinforced concrete, its overall structure is relatively heavy, and it is inconvenient to install, and its structure is fixed, and the connection parts of different feces pipelines are relatively fixed, so it cannot adapt to some different pipeline distributions. Connection.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a three-compartment septic tank with wide applicability and low processing cost.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a three-compartment septic tank, including a pool body, the pool body includes an upper pool body and a lower pool body that can be docked with each other, and the upper pool body and the lower pool body The lower pool body is made of integral plastic injection molding. The pool body is provided with two partitions, and the partition board divides the inner space of the upper pool body and the lower pool body into a first cavity and a second cavity through which the water flows sequentially. cavity, the third cavity, the two sides of the upper pool body are provided with a main sewage inlet for sewage to enter, and the main sewage inlet connects the first cavity with the outside world, and the main sewage inlet There are ribs inside to facilitate the placement of pipelines.

Through the above technical solution, the main sewage inlet is additionally set up on the side, so that sewage and feces enter directly from both sides, which is more suitable for the laying of some pipelines, and is convenient for the installation of the entire septic tank. The end faces on both sides enter. And with the structure of the upper rib, it can ensure that the structure of the pipeline is relatively stable after installation and insertion, and the deformation pressure on the main sewage inlet is small.

Preferably, the upper pool body is further provided with an air outlet and a sewage outlet, the air outlet communicates with the first cavity and the outside world, and the sewage outlet communicates with the third cavity and the outside world.

Through the above technical solution, the first air outlet can release the internal biogas pressure. Since the first cavity is the cavity with the most biogas generated by anaerobic sewage and excrement, the first air outlet is set above the first cavity. The pressure can be released quickly to ensure that the internal pressure will not be too large, and the discharge of gas is relatively smooth. The water in the third cavity is basically in the form of clear water, and the organic matter in it is basically decomposed, and after the stratification of the three cavities, it can flow out by itself through the sewage outlet.

Preferably, the volume ratio of the first cavity, the second cavity and the third cavity is 2:1:3.

Through the above technical solution, under the proportion of the cavity pattern, the first cavity can carry more organic matter, but it can also release excess water into the second cavity, passing through the short space of the second cavity. Time precipitates, and finally the relatively least organic content is deposited in the third cavity with a small space, and the clean water inside can flow directly to the outside through the sewage outlet.

Preferably, the upper pool body is provided with three through holes for excrement or observation, and the three through holes correspond to the first cavity, the second cavity and the third cavity respectively.

Preferably, the ratio between the diameter of the through hole on the first cavity, the diameter of the through hole on the second cavity, and the diameter of the through hole on the third cavity is 1:1:1 or 3:1 :3.

Through the above technical scheme, the structure of the through hole is convenient for people to operate on the extruded objects in the first cavity, the second cavity and the third cavity. Under normal conditions, the through hole can be in a sealed state, and when needed time to open it.

Preferably, the position above the partition is provided with a communication hole for water flow, and a plurality of reinforcing ribs are distributed on the partition, and the inner wall of the pool is provided with a slot for the partition to be inserted, and the partition A clamping block that is clamped with the inner wall of the pool is provided on the top.

Through the above technical solution, the partition plate can be kept fixed through the slot structure, and the connection between the partition plate and the upper and lower pool bodies can be relatively sealed, so that the space between the first cavity, the second cavity, and the third cavity isolated from each other. The clamping block plays the role of positioning the angle of the partition, so that the connecting hole of each partition can always be stable, will not rotate, and is not easy to deflect.

Preferably, the pool body is cylindrical, and the upper pool body and the lower pool body are both symmetrical structures, the upper pool body is also provided with a secondary sewage inlet, and the secondary sewage inlet is connected to the first cavity The auxiliary sewage inlet and sewage outlet are respectively located on the two bottom surfaces of the upper pool body opposite to the outside world.

Preferably, the upper pool body and the lower pool body are provided with cross bars for strengthening the structural strength. Wall snap-on.

Through the above technical solution, the cylindrical structure is easy to embed, ensuring the stability of the overall structure, and the cross bar can ensure that when the upper and lower pool bodies are squeezed, it is not easy to be squeezed and deformed. With the intermediate support structure, its diameter can be strengthened. Oriented structural strength, increased resistance to variable forces.

Preferably, well-shaped reinforcing ribs are distributed on the outer wall of the tank.

Through the above technical solution, the well-shaped reinforcing rib can disperse the stress on the surface of the pool body, making it less prone to deformation after embedding, and it is also relatively convenient to demould during production and processing, saving costs.

Preferably, the bottom of the lower pool body is provided with feet for support.

Through the above technical solution, the structure of the supporting feet can make the septic tank stable when it is taken out and placed on the bottom surface, and will not be dumped due to the cylindrical structure.

In summary, compared with the prior art, the beneficial effect of the utility model is: the use of the upper tank body and the lower tank body structure of the plastic structure can greatly save the cost of the entire production of septic tanks, and it is easy to process and can be mass-produced. Has sufficient corrosion resistance. In practical application, it is more convenient to open on the side with multiple angles, which is convenient for the connection and laying of pipelines. Cooperating with the internal partition structure and the structure of the cross bar, it can ensure the overall three-phase septic function while ensuring the overall structural strength, and can also optimize the proportion of the internal cavity to ensure the overall septic efficiency.

Description of drawings

Fig. 1 is the first structural diagram of embodiment;

Fig. 2 is the second structural diagram of embodiment;

Fig. 3 is the structural diagram after removing the upper pool body of the embodiment;

Fig. 4 is the structural diagram after removing the upper pool body and the lower pool body of the embodiment;

Fig. 5 is the sectional view of the vertical direction of embodiment;

Fig. 6 is the structural diagram of the bottom surface of embodiment;

Fig. 7 is the top view of embodiment one;

Fig. 8 is the top view of embodiment two;

Fig. 9 is the top view of embodiment three;

Fig. 10 is a top view of the fourth embodiment.

Reference signs: 11, upper tank body; 111, main sewage inlet; 1111, side retaining; 112, auxiliary sewage inlet; 113, through hole; 114, sewage outlet; 115, air outlet; 12, lower tank body; 121 , foot; 13, reinforcing rib; 14, slot; 3, partition; 31, reinforcing edge; 32, connecting hole; 33, clamping block; 4, cross bar; 51, first cavity; 52, second cavity; 53, the third cavity.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 to 2, a three-compartment septic tank includes a tank body. The tank body includes an upper tank body 11 and a lower tank body 12 that can be docked with each other. The entire tank body presents a cylindrical shape as a whole. The upper tank body 11 Both the upper pool body 11 and the lower pool body 12 are formed by integral injection molding of plastic, and the cross sections of the upper pool body 11 and the lower pool body 12 are semicircular. The buckles snap together to ensure the stability of the connection. On both sides of the upper pool body 11, there are main sewage inlets 111 for the sewage to enter. The main sewage inlets 111 communicate the first cavity 51 with the outside world. The main sewage inlets 111 are provided with ribs 1111 for easy pipeline placement. , the shape of the sidewall 1111 is shown in the figure, and the upper pool body 11 is also provided with two air outlets 115 and one sewage outlet 114, and the two air outlets 115 are symmetrically arranged, and the upper pool body 11 can also be additionally increased An auxiliary sewage inlet 112, the auxiliary sewage inlet 112 and the sewage discharge outlet 114 are respectively located on two opposite bottom surfaces of the upper pool body 11. The main sewage inlet 111 and the auxiliary sewage inlet 112 are relatively close together, so that the sewage enters from one side of the septic tank and then can come out from the other side.

In addition, the main sewage inlet 111 is set on the side, so that the sewage and feces enter directly from both sides, which is more suitable for the laying of some pipelines, and is convenient for the installation of the entire septic tank, and the pipelines are not easy to enter from the end faces on both sides. . Moreover, the structure of the upper rib 1111 can ensure that the structure of the pipeline is relatively stable after installation and insertion, and the deformation pressure on the main sewage inlet 111 is relatively small.

As shown in Figure 3 or Figure 5, two partitions 3 are provided in the pool body, and the partition board 3 divides the inner space of the upper pool body 11 and the lower pool body 12 into a first cavity 51 and a second cavity through which the water flow passes sequentially. Cavity 52, third cavity 53. When the water flow enters from the main sewage inlet 111 or the auxiliary sewage inlet 112, it first enters the first cavity 51, then enters the second cavity 52, and finally enters the third cavity 53. After the sediment in the first cavity 51 enters the second cavity 52, the water will be relatively clear, and when it finally reaches the third cavity 53, it can basically be guaranteed that it is clear water that can be drained. In order to ensure that the partition board 3 can divide the space, the inner wall of the pool is provided with a slot 14 for the partition board 3 to be inserted. The joints can be relatively sealed, so that the spaces among the first cavity 51, the second cavity 52, and the third cavity 53 are isolated from each other. In order for the water flow to flow through the partition plate 3, the upper part of the partition plate 3 is provided with a communication hole 32 for the flow of the water flow, and the communication hole 32 is located at a higher position until the water in the first cavity 51 or the second cavity 52 is full. At this time, the water flow can flow into the next cavity through the communication hole 32 . The two gas outlets on the septic tank are arranged above the first cavity 51, and the first gas outlet 115 can release the internal biogas pressure. Since the first cavity 51 is the cavity with the most biogas produced by sewage and dung anaerobic, Setting the first air outlet 115 above the first cavity 51 can release the pressure quickly to ensure that the internal pressure will not be too high and the gas can be discharged smoothly.

The upper pool body 11 is provided with three through holes 113 for digging out excrement or observation, and the three through holes 113 correspond to the first cavity 51 , the second cavity 52 and the third cavity 53 respectively. Existing four kinds of embodiment structure:

Embodiment 1, as shown in Figure 7, a secondary sewage inlet 112 is provided on the cylindrical pool body, the diameter of the through hole 113 on the first cavity 51, the diameter of the through hole 113 on the second cavity 52, the third The ratio between the diameters of the through holes 113 on the cavity 53 is 3:1:3.

Embodiment 2, as shown in Figure 8, the cylindrical pool body is not provided with a secondary sewage inlet 112, the diameter of the through hole 113 on the first cavity 51, the diameter of the through hole 113 on the second cavity 52, the diameter of the second cavity 52 The ratio between the diameters of the through holes 113 on the three cavities 53 is 3:1:3.

Embodiment three, as shown in Figure 9, the cylindrical tank body is provided with auxiliary sewage inlet 112, the diameter of the through hole 113 on the first cavity 51, the diameter of the through hole 113 on the second cavity 52, the third diameter of the through hole 52. The ratio between the diameters of the through holes 113 on the cavity 53 is 1:1:1.

Embodiment 4, as shown in Figure 10, the cylindrical pool body is not provided with a secondary sewage inlet 112, the diameter of the through hole 113 on the first cavity 51, the diameter of the through hole 113 on the second cavity 52, and the diameter of the second cavity 52. The ratio between the diameters of the through holes 113 on the three cavities 53 is 1:1:1.

The above four embodiments are based on two different sewage intake environments. If there are some cases where the amount of sewage intake is relatively large, we can add an additional sewage inlet port on the side of the septic tank to ensure the smooth progress of sewage intake. Such as the contrast of embodiment one, three and embodiment two, four. However, in some environments, when many sediments are relatively large, for the convenience of digging, the diameter of the through hole 113 needs to be expanded. Generally speaking, the positions that need to be dredged are basically the first cavity 51 and the third cavity. Cavity 53, the accumulation in the first cavity 51 is relatively large, and the amount that needs to be removed is relatively large, while a certain degree of clarity needs to be maintained in the third cavity 53, so additional removal is required. In a small case, it can be directly set so that the three through holes 113 have the same size. Such as the contrast of embodiment one, two and embodiment three, four.

The three-compartment septic tank is a treatment equipment that uses the principles of sedimentation and anaerobic fermentation to remove suspended organic matter in domestic sewage, and is a primary transitional living treatment structure. Domestic sewage contains a lot of feces, paper scraps, and pathogens. The solid concentration of suspended matter is 100-350mg/L, and the concentration of organic matter BOD5 is between 100-400mg/L. The concentration of suspended organic matter BOD5 is 50-200mg/L. Sewage enters the septic tank and after 12-24 hours of sedimentation, 50%-60% of suspended solids can be removed. After more than 3 months of anaerobic digestion of the settled sludge, the organic matter in the sludge is decomposed into stable inorganic matter, and the perishable raw sludge is transformed into stable cooked sludge, which changes the structure of the sludge and reduces the moisture content of the sludge. Regularly remove the sludge and transport it to landfill or use it as fertilizer. The large three grid buried integral septic tank is based on the traditional septic tank, retaining the advantages of mud-water mixing in the septic tank, and adding the three-phase separation technology of "sewage, sludge, and digested gas", so that The sludge and digested gas at the water outlet are separated from the sewage treatment process to avoid the interference of air flotation on sewage treatment.

Sewage is firstly discharged into the first cavity 51 by the water inlet, and in the first cavity 51, solids with a large specific gravity and parasite eggs and other objects settle down, and the anaerobic bacteria in the pool water are used to start preliminary fermentation and decomposition. The sewage treated in a cavity 51 can be divided into three layers: pasty dung skin, relatively clear dung liquid, and solid dung residue. The dung liquid of the upper layer that has been preliminarily decomposed flows into the second cavity 52, while the dung skin floating above and the dung residue deposited below stay in the first cavity 51 to continue fermentation. In the second cavity 52 , the feces liquid continues to ferment and decompose, the eggs continue to sink, the pathogens gradually die, the feces liquid is further harmlessly treated, and the thickness of the feces skin and dregs produced is significantly smaller than that of the first cavity 51 . The feces liquid flowing into the third cavity 53 has generally been decomposed, and germs and parasite eggs have been basically killed. The function of the third cavity 53 is mainly to temporarily store the settled and basically harmless feces, and finally, the re-precipitated feces flow into the municipal pipe network through the sewage outlet 114 . In addition, because the utility model can be buried underground, it has a wide application range, and can be used as a supporting facility for preliminary treatment of domestic sewage in industrial and civil buildings such as residential quarters, schools, hospitals, and enterprise workshops, and can also be used for the transformation of rural ecological toilets.

In addition, as shown in FIG. 4 , a plurality of reinforcing ribs 31 are distributed on the partition 3 , and the reinforcing ribs 31 are distributed in a rice-shaped structure to ensure the overall structural stability of the partition 3 . At the same time, the partition plate 3 is provided with a clamping block 33 which is clamped with the inner wall of the tank. The number of clamping blocks 33 is two, which are respectively symmetrically distributed. The clamping blocks 33 have the same shape. When installing, only the partition plate 3 needs to be put in, and then the upper and lower pool bodies 12 are closed, so that the overall stability can be ensured. The clamping block 33 can play the role of positioning the angle of the partition 3, so that the communication hole 32 of each partition 3 can always be stable, will not rotate, and is not easy to deflect. This simple structure has an obvious effect.

As shown in Figures 4 and 5, the upper pool body 11 and the lower pool body 12 are provided with crossbars 4 for strengthening the structural strength. The crossbars 4 are located on the surface where the upper pool body 11 and the lower pool body 12 are connected. All are clamped with the inner wall of the lower pool body 12 . In this embodiment, there is one crossbar 4, which is arranged in the third cavity 53. The crossbar 4 can ensure that when the upper and lower pool bodies 12 are squeezed, it is not easy to be squeezed and deformed, and there is an intermediate support structure. , can strengthen its radial structural strength and increase resistance to variable forces. The well-shaped reinforcing ribs 13 are distributed on the outer wall of the pool, and the thickness of the reinforcing ribs 13 is relatively thick, which can disperse the stress on the surface of the pool body, making it difficult to deform after embedding, and it is demoulded during production and processing. It is also more convenient and cost-saving.

As shown in FIG. 6 , the bottom of the lower pool body 12 is provided with supporting feet 121 for supporting. The legs 121 are integrally formed by injection molding with the lower pool body 12. The number of the legs 121 is four, which are respectively arranged on the four corners under the lower pool body 12, and are distributed in a structure of four apexes of a rectangle. The structure of the legs 121 It can make the septic tank stable when placed on the bottom surface when it is taken out, and it will not be dumped due to the cylindrical structure.

The above are only exemplary implementations of the present utility model, and are not intended to limit the protection scope of the present utility model, which is determined by the appended claims.

Claims (10)

1. a three-grid septic tank, including cell body, it is characterized in that: described cell body includes upper pool body (11) and the lower pool body (12) that can be mutually butted, described upper pool body (11) and lower pool body (12) form by plastics integrated injection molding, two dividing plates (3) it are provided with in described cell body, the inner space of upper pool body (11) Yu lower pool body (12) is divided into the first cavity (51) passed sequentially through for current by described dividing plate (3), second cavity (52), 3rd cavity (53), the both sides of described upper pool body (11) are provided with mean for the main dirt inlet (111) that sewage enters, described first cavity (51) is in communication with the outside by described main dirt inlet (111), it is provided with in described main dirt inlet (111) and is easy to the rib (1111) that pipeline is placed.

2. three-grid septic tank according to claim 1, it is characterized in that: described upper pool body (11) is additionally provided with venthole (115), sewage draining exit (114), described venthole (115) connects described first cavity (51) with extraneous, and described sewage draining exit (114) connection the 3rd cavity (53) is with extraneous.

3. three-grid septic tank according to claim 1, is characterized in that: described first cavity (51), the second cavity (52), the 3rd cavity (53) volume fraction be 2:1:3.

4. three-grid septic tank according to claim 1, it is characterized in that: described upper pool body (11) is provided with three through holes (113) for drawing excrement or observation, three described through holes (113) respectively with the first cavity (51), the second cavity (52), the 3rd cavity (53) one_to_one corresponding.

5. three-grid septic tank according to claim 4, is characterized in that: the ratio between through hole (113) diameter on through hole (113) diameter on described first cavity (51), through hole (113) diameter on the second cavity (52), described 3rd cavity (53) is 1:1:1 or 3:1:3.

6. three-grid septic tank according to claim 1, it is characterized in that: described dividing plate (3) top position is provided with mean for the intercommunicating pore (32) of current flowing, the upper distribution of described dividing plate (3) has a plurality of reinforcement rib (31), described cell body inwall is provided with mean for the slot (14) that dividing plate (3) plugs together, and described dividing plate (3) is provided with the clamping block (33) with cell body inwall clamping.

7. three-grid septic tank according to claim 2, it is characterized in that: described cell body is cylindrical, and upper pool body (11) is symmetrical structure with lower pool body (12), described upper pool body (11) is additionally provided with secondary dirt inlet (112), described secondary dirt inlet (112) connects described first cavity (51) with extraneous, and described secondary dirt inlet (112) lays respectively on two bottom surfaces that upper pool body (11) is relative with sewage draining exit (114).

8. three-grid septic tank according to claim 7, it is characterized in that: described upper pool body (11) is internal with lower pool body (12) is provided with the cross bar (4) for reinforcement structure intensity, described cross bar (4) is positioned on the face that described upper pool body (11) docks with lower pool body (12), described cross bar (4) two ends all with lower pool body (12) inwall clamping.

9. three-grid septic tank according to claim 1, is characterized in that: on described cell body outer wall, distribution has the reinforcement (13) of groined type.

10. three-grid septic tank according to claim 1, is characterized in that: described lower pool body (12) bottom is provided with the leg (121) for supporting.