CN213680063U - First-stage domestic sewage solid-liquid separation system - Google Patents

Abstract

The application relates to the field of environmental protection and sewage treatment, and discloses a primary domestic sewage solid-liquid separation system, which comprises an upstream runner and a downstream runner which are mutually communicated for sewage circulation, wherein the upstream runner is provided with a slope structure communicated with the downstream runner, and a circulating separation device for filtering and removing solid garbage in sewage is arranged at the slope structure; the lower end of the circulating separation device is close to the bottom of the slope structure, and the vertical distance between the upper end of the circulating separation device and the downstream flow channel is not less than two meters; a garbage conveying device used for collecting the solid garbage removed after being filtered by the circulating separation device is arranged under the upper end of the circulating separation device. The utility model discloses a circulating solid-liquid separation and solid waste transport realize once separating, once collect, have improved solid-liquid separation's in the initial stage sewage effect, compare in multilevel processing for the energy consumption is lower.

Description

First-stage domestic sewage solid-liquid separation system

Technical Field

The utility model relates to an environment-friendly device field especially relates to sewage treatment plant or equipment or complete sets field, concretely relates to first stage domestic sewage solid-liquid separation system.

Background

Urban sewage treatment is a civil engineering which is very important for maintaining normal operation of a city. The processing flow is roughly divided into: removing solid impurities by a physical method, removing organic matters by a biological method, removing nitrogen, phosphorus and potassium by a chemical method, finally performing harmless treatment, detecting to be qualified, discharging and performing water circulation again.

The mode that current physics method got rid of solid impurity adopts the grid separation mostly, realizes filtering the separation gradually to solid rubbish from big to little through setting up multistage thick grid and thin grid. Although the grid method carries out solid-liquid separation and has good stability and strong compatibility, the efficiency of the solid-liquid separation is not high due to the requirement of multi-stage setting, and more solid garbage can be attached to the grids after the grids are operated for a period of time, so that the grids at all levels are blocked to different degrees, and the effective filtering flow of sewage is reduced. Meanwhile, the arrangement of the multistage grating can increase the energy consumption of the whole solid-liquid separation, and the economical efficiency is not good. The other existing solid-liquid separation mode is to arrange a filter screen in a flow channel of incoming sewage, and the interception of solid garbage is realized by regularly cleaning attachments of the filter screen and high-density suspended matters at the upstream of the filter screen. The solid-liquid separation in the mode has the advantages of good economy, no energy consumption and capability of realizing solid-liquid separation completely by means of self-flowing of sewage, but has the disadvantages of needing manual regular cleaning, otherwise causing complete blockage of a sewage flow channel, and thus, the method has great labor cost and reduces the solid-liquid separation efficiency of the sewage.

SUMMERY OF THE UTILITY MODEL

The method aims to solve the problems of high energy consumption and easy blockage caused by adopting a multi-stage grid for filtering in the background technology and the problem that the attachment is required to be cleaned regularly when a static filter screen is adopted for separating solid matters in the primary solid-liquid separation process of sewage in the prior art; the application provides be different from prior art and be fit for current domestic sewage's first segment domestic sewage solid-liquid separation system, can effectually avoid a great deal of problem among the prior art. The first-stage filtration separation is adopted, so that the energy consumption is low; meanwhile, solid can be transported and collected at fixed points in the solid-liquid separation process, so that subsequent solid garbage treatment is facilitated.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the primary domestic sewage solid-liquid separation system comprises an upstream runner and a downstream runner which are communicated with each other for sewage circulation, wherein the upstream runner is provided with a slope structure communicated with the downstream runner, and a circulating separation device for filtering and removing solid garbage in sewage is arranged at the slope structure; the lower end of the circulating separation device is close to the bottom of the slope structure, and the vertical distance between the upper end of the circulating separation device and the downstream flow channel is not less than two meters; a garbage conveying device used for collecting the solid garbage removed after being filtered by the circulating separation device is arranged under the upper end of the circulating separation device. The working principle is as follows: and arranging or building the upstream runner and the downstream runner on the ground, wherein the upstream runner and the downstream runner are generally built by adopting an underground excavation mode and are formed by adopting concrete pouring. Untreated urban sewage flows through the upstream runner and the downstream runner in sequence, after passing through the circulating separation device, solid garbage suspended in the sewage flows along with the flowing of the sewage, and when the solid garbage reaches the circulating separation device and is blocked, the sewage can continue to flow, so that the solid-liquid separation effect is realized. Because circulation separator sets up along the slope structure, the solid waste that is located the different degree of depth all will be blocked and is taken away from the surface of water in the circulation process, finally breaks away from and falls on rubbish conveyor from circulation separator's upper end and is carried to the assigned position and be used for concentrating and handling solid waste. Because the circulation separation device adopts active solid-liquid separation, the circulation separation can be carried out uninterruptedly, and the adhesion and the blockage existing in the prior art are avoided. Compared with a mode of filtering and separating solid garbage by a multi-stage grating, the efficiency is higher, and the energy consumption is lower. Compared with the existing static filtering mode, the efficiency can be obviously improved by multiple times, and the manual cleaning is not needed, so that the labor input cost is greatly reduced, and the efficiency of solid-liquid separation in sewage is improved.

As a preferred arrangement mode of the present application, the circular separation device includes hinge grids installed in parallel along the slope structure and rotating circularly, two first rollers disposed at two ends of the hinge grids and used for driving the hinge grids to rotate, and a first driving device is connected to any one of the first rollers in a driving manner. The effect of hinge net lies in can realizing incessant filterable while, can also realize taking the solid rubbish in the sewage that flows away from the surface of water voluntarily, the space of hinge net can freely set up, owing to adopt disposable filtration, then the effective net that blocks of hinge net is less, the solid can only be attached to the surface usually, when the hinge net is rotatory to the downside face, solid-liquid rubbish then can realize freely dropping under the effect of gravity, need not other mechanisms, for example current washing mechanism clears up, the practicality is good, the energy consumption is low.

Further, the first driving device comprises a first motor and a first speed reducer which are arranged on the rack and are in driving connection. Because the treatment object is the initial stage sewage, the proportion height of its solid waste has the difference, consequently, matches first speed reducer and can match the actual functioning speed of hinge net according to the actual solid waste proportion condition to reach the compatibility between solid-liquid separation efficiency and the energy consumption economic nature.

Preferably, the hinge grid is composed of a plurality of filter plates hinged in parallel, and a plurality of L-shaped filter teeth used for removing solid garbage are further hinged to the hinge grid. Because the incoming flow of the initial section of the sewage is slow, the solid garbage is attached to the surface of the hinge grid only depending on the flow of the sewage, and the effect of taking the solid garbage out of the water surface by utilizing the self adhesive force of the solid garbage cannot achieve the ideal effect. Set up L type and filter the tooth and can effectively block the area with the solid waste who is close to the hinge net and leave the water level, promote the solid-liquid separation effect of low velocity of flow sewage.

Further preferably, the L-shaped filtering teeth are arranged at equal intervals in the transverse direction and the longitudinal direction. Adopt horizontal equidistant setting to make L type filter the tooth and can install in a row, adopt vertical equidistant setting to realize that the L type of in a row filters the tooth and can interval multirow setting. The arrangement mode can effectively improve the standardization of the structure, so that the attached and blocked solid garbage is more concentrated, when the solid garbage runs to the lower part of the hinge grid, the solid garbage can drop more thoroughly under the action of gravity, and the separation effect is better.

Preferably, the garbage conveying device comprises a mesh screen with one end arranged right below the upper end of the circulating separation device, a second roller arranged at two ends of the mesh screen and driving the mesh screen to rotate circularly to convey solid garbage, and a second speed reducer and a second motor are sequentially connected to the second roller far away from one end of the circulating separation device in a driving mode.

In order to avoid the problem of environmental pollution caused by the discharge of untreated sewage due to the outflow of sewage attached to the solid waste, a filter tank for collecting sewage dripping from the solid waste is preferably further arranged below the waste conveying device, and the filter tank is communicated with the downstream flow channel. Like this on whole transportation process solid waste adnexed sewage can be under the effect of gravity with the whole drippage sewage of the overwhelming majority in the filter-tank, along with the sewage in the sprue get into the follow-up treatment flow in the lump, finally realize innocent treatment and discharge.

In order to avoid that the solid waste falls into the filter tank in the conveying process to cause solid-liquid separation failure, so that the solid waste enters the downstream flow channel, preferably, the waste conveying device further comprises baffle plates which are arranged on two sides of the mesh screen and used for blocking the solid waste, and the baffle plates are detachably and fixedly connected with the rack.

In order to facilitate the installation and density adjustment and arrangement of the L-shaped filtering teeth, preferably, the L-shaped filtering teeth comprise an integrally formed working part and an installation part, and the installation part is provided with installation holes for hinging the hinge grids. The size and the structure of installation department preferably adopt with the same structure setting of filter for the convenience of installation can be better.

In order to adapt to wider solid-liquid separation of sewage from different sources, a plurality of preformed holes are arranged on the working part. Through the shaft-shaped objects with different numbers and densities inserted into the reserved holes, the rows of L-shaped filtering teeth can form grids with different apertures, so that more and smaller solid garbage can be blocked more effectively, and the solid-liquid separation with higher efficiency is realized.

Advantageous effects

The utility model discloses a circulating solid-liquid separation and solid waste transport realize once separating, once collect, have improved solid-liquid separation's in the initial stage sewage effect, compare in multilevel processing for the energy consumption is lower.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the inverted perspective structure of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a top view of FIG. 3;

fig. 5 is a front view of an L-shaped filter tooth.

In the figure: 1-an upstream flow channel; 2-a downstream flow channel; 3-a first motor; 4-a first reducer; 5-a first drum; 6-hinge grid; 7-L type filter teeth; 8-a frame; 9-a second motor; 10-a second reducer; 11-a second drum; 12-mesh screen; 13-a baffle; 14-a filter tank; 71-a working part; 72-preformed hole; 73-a mounting portion; 74-mounting holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the primary domestic sewage solid-liquid separation system shown in the attached figure 1-2 comprises an upstream flow channel 1 and a downstream flow channel 2 which are communicated with each other for sewage circulation, wherein the upstream flow channel 1 is provided with a slope structure communicated with the downstream flow channel 2, and a circulating separation device for filtering and removing solid garbage in sewage is arranged at the slope structure; the lower end of the circulating separation device is close to the bottom of the slope structure. The slope structure can effectively prolong the effective contact area of the circulating separation device and the solid garbage, and the separation efficiency is improved. The vertical distance between the upper end of the circulating separation device and the downstream flow passage 2 is not less than two meters; when the distance is less than two meters, the installation of the subsequently mentioned garbage conveying device is not facilitated, and meanwhile, when the speed of the solid garbage falling on the garbage conveying device under the action of gravity is not high enough, the attached sewage cannot be separated from the solid garbage instantly, so that the water content of the separated solid garbage is high, and the subsequent treatment cost and difficulty are increased. A garbage conveying device used for collecting the solid garbage removed after being filtered by the circulating separation device is arranged under the upper end of the circulating separation device. The working principle is as follows: and arranging or building the upstream runner 1 and the downstream runner 2 on the ground, wherein the upstream runner and the downstream runner are generally built by adopting an underground excavation mode and are formed by adopting concrete pouring. Untreated urban sewage flows through the upstream runner 1 and the downstream runner 2 in sequence, after passing through the circulating separation device, solid garbage suspended in the sewage flows along with the sewage, and when the solid garbage reaches the circulating separation device, the solid garbage is blocked, the sewage can continue to flow, and the solid-liquid separation effect is realized. Because circulation separator sets up along the slope structure, the solid waste that is located the different degree of depth all will be blocked and is taken away from the surface of water in the circulation process, finally breaks away from and falls on rubbish conveyor from circulation separator's upper end and is carried to the assigned position and be used for concentrating and handling solid waste. Because the circulation separation device adopts active solid-liquid separation, the circulation separation can be carried out uninterruptedly, and the adhesion and the blockage existing in the prior art are avoided. Compared with a mode of filtering and separating solid garbage by a multi-stage grating, the efficiency is higher, and the energy consumption is lower. Compared with the existing static filtering mode, the efficiency can be obviously improved by multiple times, and the manual cleaning is not needed, so that the labor input cost is greatly reduced, and the efficiency of solid-liquid separation in sewage is improved.

Example 2:

in this embodiment, on the basis of embodiment 1, the structure of the circulation separation apparatus is further elaborated, and the advantageous technical effects are explained by combining the structure provided in this embodiment. As shown in fig. 1-4, the circular separation device includes a hinge grid 6 installed in parallel along the slope structure and rotating circularly, two first rollers 5 disposed at two ends of the hinge grid 6 for driving the hinge grid 6 to rotate, and a first driving device is connected to any one of the first rollers 5 in a driving manner. Hinge net 6's effect lies in realizing incessant filterable while, can also realize taking the solid rubbish in the sewage that flows away from the surface of water voluntarily, hinge net 6's space can freely set up, owing to adopt disposable filtration, then hinge net 6's effective net that stops is less, the solid can only be attached to the surface usually, when hinge net 6 rotates to the downside face, solid-liquid rubbish then can realize freely dropping under the effect of gravity, need not other mechanisms, for example current washing mechanism clears up, the practicality is good, the energy consumption is low. In this embodiment, the first driving device includes a first motor 3 and a first speed reducer 4 mounted on the frame 8 and in driving connection with each other. Because the treatment object is the initial stage sewage, the proportion of the solid waste is different, and therefore the matching first speed reducer 4 can match the actual running speed of the hinge grid 6 according to the actual proportion of the solid waste, so that the compatibility between the solid-liquid separation efficiency and the energy consumption economy is achieved. The hinge grid 6 is composed of a plurality of filter plates which are hinged in parallel, and a plurality of L-shaped filter teeth 7 used for rejecting solid garbage are further hinged on the hinge grid 6. Because the incoming flow of the initial section of the sewage is slow, the solid garbage is attached to the surface of the hinge grid 6 only depending on the flow of the sewage, and the effect of taking the solid garbage out of the water surface by utilizing the self adhesive force of the solid garbage cannot achieve an ideal effect. The L-shaped filtering teeth 7 are arranged, so that solid garbage close to the hinge grids 6 can be effectively blocked and taken away from the water surface, and the solid-liquid separation effect of low-flow-rate sewage is improved.

In this embodiment, the L-shaped filtering teeth 7 are arranged at equal intervals in the transverse direction and the longitudinal direction. Adopt horizontal equidistant setting to make L type filter teeth 7 can the in bank installation, adopt vertical equidistant setting to realize that L type filter teeth 7 in bank can interval multirow setting. Adopt this kind of mode of arranging can effectively promote the standardization of structure for the solid waste that adheres to, block is more concentrated, when the below of hinge net 6 was moved to solid waste, drops under the action of gravity and can be more thorough, and the separation effect is better.

Example 3:

in this embodiment, a garbage conveying device is further described based on embodiment 1 or 2, and as shown in fig. 1 to 5 in the specification, the garbage conveying device includes a mesh screen 12 having one end disposed right below an upper end of the circulation separation device, a second drum 11 disposed at two ends of the mesh screen 12 and driving the mesh screen 12 to circularly rotate to convey solid garbage, and the second drum 11 far away from one end of the circulation separation device is sequentially connected with a second speed reducer 10 and a second motor 9 in a driving manner.

In order to avoid the problem of environmental pollution caused by untreated sewage discharge due to the outflow of sewage attached to the solid garbage, a filter tank 14 for collecting the solid garbage dripping sewage is further arranged below the garbage conveying device, and the filter tank 14 is communicated with the downstream flow channel 2. Therefore, the sewage attached to the solid garbage in the whole conveying process can drop most of the droppable sewage into the filter tank 14 under the action of gravity, enters a subsequent treatment process along with the sewage in the main flow passage, and finally realizes harmless treatment and discharge.

In order to avoid that the solid waste falls into the filter tank 14 during the conveying process to cause the solid-liquid separation failure, so that the solid waste enters the downstream flow channel 2 again, the waste conveying device preferably further comprises baffle plates 13 arranged on two sides of the mesh screen 12 and used for blocking the solid waste, and the baffle plates 13 are detachably and fixedly connected with the frame 8.

In order to facilitate the installation and density adjustment and arrangement of the L-shaped filter teeth 7, preferably, the L-shaped filter teeth 7 include an integrally formed working portion 71 and a mounting portion 73, and the mounting portion 73 is provided with a mounting hole 74 for being hinged to the hinge grid 6. The size and structure of the mounting portion 73 are preferably arranged in the same structure as the filter plate, so that convenience of mounting can be better.

In order to adapt to wider solid-liquid separation of sewage from different sources, a plurality of reserved holes 72 are formed in the working part 71. Through inserting the rod-shaped objects with different numbers and densities into the preformed holes 72, the rows of L-shaped filtering teeth 7 can form grids with different apertures, so that more and smaller solid garbage can be blocked more effectively, and solid-liquid separation with higher efficiency can be realized.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. First section domestic sewage solid-liquid separation system supplies upstream runner (1) and low reaches runner (2) of sewage circulation, its characterized in that including intercommunication each other: the upstream runner (1) is provided with a slope structure communicated with the downstream runner (2), and the slope structure is provided with a circulating separation device for filtering and removing solid garbage in the sewage; the lower end of the circulating separation device is close to the bottom of the slope structure, and the vertical distance between the upper end of the circulating separation device and the downstream flow channel (2) is not less than two meters; a garbage conveying device used for collecting the solid garbage removed after being filtered by the circulating separation device is arranged under the upper end of the circulating separation device.

2. The primary domestic sewage solid-liquid separation system of claim 1, wherein: the circulating separation device comprises hinge grids (6) which are arranged in parallel along the slope structure and rotate circularly, two first rollers (5) which are arranged at two ends of each hinge grid (6) and used for driving the hinge grids (6) to rotate, and a first driving device is connected to any one first roller (5) in a driving mode.

3. The primary domestic sewage solid-liquid separation system of claim 2, wherein: the first driving device comprises a first motor (3) and a first speed reducer (4) which are arranged on the rack (8) and are in driving connection.

4. The primary domestic sewage solid-liquid separation system according to claim 2 or 3, wherein: hinge net (6) comprise a plurality of parallel articulated filter plates each other, still articulated a plurality of L type that are used for rejecting solid waste on hinge net (6) are filtered tooth (7).

5. The primary domestic sewage solid-liquid separation system of claim 4, wherein: the L-shaped filtering teeth (7) are arranged at equal intervals in the transverse direction and the longitudinal direction.

6. The primary domestic sewage solid-liquid separation system according to claim 1 or 5, wherein: the garbage conveying device comprises a mesh screen (12) with one end arranged right below the upper end of the circulating separation device, a second roller (11) which is arranged at two ends of the mesh screen (12) and drives the mesh screen (12) to rotate circularly to convey solid garbage, and the second roller (11) far away from one end of the circulating separation device is sequentially connected with a second speed reducer (10) and a second motor (9) in a driving mode.

7. The primary domestic sewage solid-liquid separation system of claim 6, wherein: a filter tank (14) used for collecting solid garbage dripping sewage is further arranged below the garbage conveying device, and the filter tank (14) is communicated with the downstream flow channel (2).

8. The primary domestic sewage solid-liquid separation system of claim 7, wherein: the garbage conveying device further comprises baffle plates (13) arranged on two sides of the mesh screen (12) and used for separating solid garbage, and the baffle plates (13) are detachably and fixedly connected with the rack (8).

9. The primary domestic sewage solid-liquid separation system of claim 4, wherein: l type filters tooth (7) including integrated into one piece's work portion (71) and installation department (73), be provided with on installation department (73) be used for with articulated mounting hole (74) of hinge net (6).

10. The primary domestic sewage solid-liquid separation system of claim 9, wherein: the working part (71) is provided with a plurality of preformed holes (72).

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