CN218076856U - A kind of sewage pretreatment tank for sewage plant - Google Patents

Abstract

The utility model discloses a sewage pretreatment tank for sewage plants, which belongs to the technical field of sewage treatment and comprises a tank body, a first filtering component, a second filtering component and a pumping component; the tank body comprises a water inlet pipe and a sedimentation tank which are communicated with each other; the first filtering component comprises a filtering net and a filtering guide; the second filtering component comprises a sand screen plate and an outflow opening, and the sand screen plate is obliquely arranged on the inner wall of the water inlet pipe; the lower end of the outflow port corresponding to the sand grain screen plate is arranged on the side wall of the water inlet pipe; the water pumping assembly comprises a water drainage pipe and a water pump. The utility model realizes multiple filtration in a small space by arranging the first filtering component and the second filtering component in the water inlet pipe at intervals up and down, thereby improving the filtering effect; the sludge discharge assembly is arranged at the bottom of the sedimentation tank, so that the settled sludge is taken out, and the subsequent cleaning is facilitated; reasonable in design, the design is ingenious, can integrate quick get rid of impurity, grains of sand and sediment mud.

Description

A kind of sewage pretreatment tank for sewage plant

technical field

The utility model belongs to the technical field of sewage treatment, in particular to a sewage pretreatment pool for sewage plants.

Background technique

Sewage contains a lot of impurities (such as suspended particles and silt), and if the sewage flows directly into the sewage treatment equipment, it will cause damage to it.

Generally, sewage needs to be pretreated before microbial purification treatment. The main purpose of sewage pretreatment is to remove impurities and sediment. Sewage treatment plants generally use pretreatment tanks to pretreat sewage. Remove the floating matter, and then naturally settle the sewage to make the sediment sink to the bottom of the pool, then discharge the water from the upper part of the pool, and finally clean up the sediment at the bottom of the pool. The whole process has many procedures and takes a long time. Pretreatment The efficiency is low, and there are many equipments, and the floor space is large.

Utility model content

The purpose of this utility model is to provide a sewage pretreatment pool for sewage plants to solve the problems of the above-mentioned background technology in which there are many sewage pretreatment processes, which take a long time, the efficiency of pretreatment is low, and there are many equipments and occupy a lot of space. Bigger problem.

In order to achieve the above object, the utility model provides the following technical solutions:

A sewage pretreatment pool for a sewage plant, comprising a pool body, a first filter assembly, a second filter assembly and a pumping assembly, the first filter assembly, the second filter assembly and the pumping assembly are sequentially arranged in the pool body from top to bottom ;

The pool body includes an interconnected water inlet pipe and a sedimentation tank;

The first filter assembly includes a filter screen and a filter conduit, the filter screen is arranged on the inner wall of the water inlet pipe, and a reserved opening is set on it; the filter conduit is connected to the filter screen corresponding to the reserved port, and its bottom end extends out of the pool in vitro;

The second filter assembly includes a sand mesh plate and an outlet, the sand mesh plate is arranged obliquely on the inner wall of the water inlet pipe; the outlet corresponding to the lower end of the sand mesh plate is arranged on the side wall of the water inlet pipe ;

The pumping assembly includes a drain pipe and a water pump, the bottom end of the drain pipe is located in the sedimentation tank, and the top end protrudes from the outside of the tank; the water pump is arranged on the drain pipe.

Further, it also includes a sludge discharge assembly, which includes a fixed cylinder, a screw rod and a drive motor; the bottom end of the fixed cylinder is located at the bottom of the sedimentation tank, and the top end extends out of the tank, and the cylinder located outside the tank A sewage outlet is opened on the body; the screw rod is rotated and installed in the fixed cylinder; the power output end of the driving motor is connected with the screw rod.

Further, the first filter assembly also includes a vibrating element, the vibrating element includes a fixed plate, a fixed rod and a spring; the fixed plate is fixed on the inner wall of the water inlet pipe; the fixed rod is inserted into the filter net The end part, the top and bottom ends of which are connected with the fixed plate; the two springs are set respectively on the fixed rods located on the upper and lower sides of the filter net.

Further, a first collection box is arranged on the outer wall of the water inlet pipe, and the first collection box is located below the outlet and is arranged corresponding to the bottom end of the filter conduit.

Further, a chute is provided on the side wall of the water inlet pipe above the corresponding outlet, a baffle is slidably arranged in the chute, and a handle is provided on the baffle.

Further, the fixed cylinder is provided with a sewage discharge pipe at a position corresponding to the sewage discharge outlet, and the sewage discharge pipe is arranged vertically.

Further, a second collection box is arranged on the outer wall of the sedimentation tank, and the second collection box is located below the sewage pipe.

Further, the water inlet pipe is vertically arranged on the top of the sedimentation tank, and its cross section is rectangular; the bottom of the sedimentation tank is arranged in an inverted conical shape.

Further, the filter screen is set in an inverted cone shape, and the reserved opening is set at the center of the filter screen.

The utility model has the following beneficial effects:

1. The utility model provides a sewage pretreatment tank for a sewage plant. The first filter assembly and the second filter assembly are arranged at intervals up and down in the water inlet pipe to realize multiple filtration in a small space, save the space occupied by the equipment, and improve filter effect.

2. The utility model provides a sewage pretreatment tank for a sewage plant. By installing a sludge discharge component at the bottom of the sedimentation tank, the precipitated sludge is taken out, which is convenient for subsequent cleaning and saves time and effort.

3. The utility model provides a sewage pretreatment tank for a sewage plant. By setting a vibrating member, when the sewage hits the filter screen, the filter screen can vibrate up and down along the fixed rod, so that the sundries can enter the filter screen more quickly. In the duct, the filtering effect is improved, and at the same time, it effectively prevents the reserved opening of the filter from clogging.

4. The utility model provides a sewage pretreatment tank for sewage plants, which has a reasonable design and ingenious conception, and can realize sewage pretreatment in a small space, and can quickly remove impurities, sand particles and sedimentation sludge in an integrated manner, occupying an area of Less space.

Description of drawings

Fig. 1 is the overall structural representation of the pretreatment pool that the utility model relates to;

Fig. 2 is a schematic diagram of the internal structure of the pretreatment pool involved in the utility model;

Fig. 3 is a schematic diagram of a partially enlarged structure at A in Fig. 2;

Fig. 4 is a schematic diagram of a partially enlarged structure at B in Fig. 2;

FIG. 5 is a schematic diagram of a partially enlarged structure at point C in FIG. 2 .

In the figure: 1-pool body, 11-inlet pipe, 12-sedimentation tank, 2-first filter assembly, 21-filter net, 22-filter conduit, 23-vibration piece, 24-first collection box, 3-the first Two filter components, 31-sand mesh, 32-outlet, 33-baffle, 34-chute, 4-sludge discharge assembly, 41-fixed cylinder, 42-screw rod, 43-drive motor, 44- Sewage pipe, 45-second collection box, 5-pumping assembly, 51-water pump, 52-drainage pipe.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 and 2, a sewage pretreatment tank for a sewage plant provided by the utility model includes a tank body 1, a first filter assembly 2, a second filter assembly 3, a sludge discharge assembly 4 and a pumping assembly 5; The pool body 1 includes a water inlet pipe 11 and a sedimentation tank 12 which communicate with each other; the first filter assembly 2 and the second filter assembly 3 are sequentially arranged in the water inlet pipe 11 at intervals from top to bottom to perform multiple filtrations on sewage. The first filter assembly 2 comprises a filter screen 21 and a filter conduit 22, the filter screen 21 is arranged on the inner wall of the water inlet pipe 11, and a reserved opening is arranged on it; 21 connection, the bottom protrudes out of the pool body 1; the larger volume of impurities in the sewage is intercepted by the filter screen 21, and flows out of the pool body 1 through the filter conduit 22; the second filter assembly 3 includes a sand mesh plate 31 and an outlet 32 , the sand mesh plate 31 is obliquely arranged on the inner wall of the water inlet pipe 11; the outflow port 32 is arranged on the side wall of the water inlet pipe 11, and is correspondingly arranged with the lower end of the sand mesh plate 31; Impurities are discharged from the outlet 32 along the sand mesh plate 31 to further filter the sewage impurities; as shown in Figure 5, the sludge discharge assembly 4 is arranged at the bottom of the sedimentation tank 12, including a fixed cylinder 41, a screw rod 42, and a drive motor 43 And the sewage pipe 44, the bottom end of the fixed cylinder 41 is located at the bottom of the sedimentation tank 12, and is provided with an opening. The length direction rotation of the fixed cylinder 41 is arranged in the fixed cylinder 41; the power output end of the driving motor 43 is connected with the screw rod 42; The screw rod 42 is driven to rotate, and the sludge inside the sedimentation tank 12 is taken out along the fixed cylinder 41 and the sewage pipe 44; the pumping assembly 5 includes a water pump 51 and a drain pipe 52, and the bottom end of the drain pipe 52 is located in the sedimentation tank 12, and the top end protrudes Outside the pool body 1 ; the water pump 51 is arranged on the drain pipe 52 and communicated with the drain pipe 52 ;

The water inlet pipe 11 is vertically arranged on the top of the sedimentation tank 12, and its cross-section is rectangular; the bottom of the sedimentation tank 12 is arranged in an inverted conical shape, so that the sludge can be collected at the center of the bottom of the sedimentation tank 12 to facilitate subsequent sludge discharge.

The filter screen 21 is set in an inverted conical shape, and the reserved opening is set at the center of the filter screen 21 .

The first filter assembly 2 also includes a vibrating part 23 and a first collection box 24; as shown in Figure 3, the vibrating part 23 includes a fixed plate, a fixed rod and a spring, and the fixed plate is fixed on the inner wall of the water inlet pipe 11; the fixed rod is inserted into the It is located at the end of the filter screen 21, and its top and bottom ends are connected with the fixed plate; two springs are set, which are respectively sleeved on the fixed rods located on the upper and lower sides of the filter screen 21; Set at intervals, when the sewage hits the filter screen 21, the filter screen 21 can vibrate up and down along the fixed rod, so that debris can enter the filter conduit 22 more quickly, and at the same time, effectively prevent the reserved opening of the filter screen 21 from clogging . The first collection box 24 is arranged on the outer wall of the water inlet pipe 11 , has an open top, and is arranged corresponding to the bottom end of the filter conduit 22 , and collects impurities discharged from the filter conduit 22 .

As shown in Figure 4, a chute 34 is provided on the side wall of the water inlet pipe 11 and above the corresponding outlet 32, a baffle 33 is slidably arranged in the chute 34, and a handle is arranged on the baffle 33, when the impurities on the sand mesh plate 31 accumulate , slide the baffle plate 33 upwards, so that the baffle plate 33 is located in the chute 34, and the outflow port 32 is opened to discharge impurities; 33 blocks outflow port 32, and outflow port 32 is closed, prevents sewage from splashing out from outflow port 32. The outflow port 32 is arranged on the top of the first collection box 24, so that the impurities filtered by the sand mesh plate 31 enter the first collection box 24, which is convenient for subsequent cleaning.

The bottom end of the fixed cylinder 41 is located at the center of the bottom of the sedimentation tank 12, the driving motor 43 is arranged on the top plate of the fixed cylinder 41, and a protective cover is arranged outside. The sewage pipe 44 is arranged vertically, and the top end communicates with the fixed cylinder 41 . The sludge discharge assembly 4 also includes a second collection box 45 , which is arranged on the outer wall of the sedimentation tank 12 and located below the mouth of the sewage pipe 44 to facilitate the collection of sludge at the bottom of the sedimentation tank 12 .

The bottom end of the drain pipe 52 is located at the top inside the sedimentation tank 12 .

Working principle: the sewage enters from the water inlet pipe 11, and the larger volume of impurities is intercepted by the filter screen 21. The impurities intercepted by the filter screen 21 enter the filter conduit 22 at the bottom of the filter screen 21, flow out along the filter conduit 22, and enter the first collector. In the box 24; the filtered sewage flows down through the filter screen 21, passes through the sand mesh plate 31, further blocks the impurities therein, and the blocked sand will flow along the sand grain mesh plate 31 to the sand grain mesh plate 31 At the bottom, when cleaning is required, slide the baffle plate 33 upwards so that the baffle plate 33 is located in the chute 34, the outlet 32 is opened, and impurities enter the first collection box 24 along the outlet 32; When there are few impurities, slide the baffle plate 33 downwards so that the baffle plate 33 blocks the outflow port 32, and the outflow port 32 is closed to prevent the sewage from splashing out from the outflow port 32; the sewage continues to flow downward into the sedimentation tank 12 for standing Sedimentation, sludge and sewage are separated, start water pump 51, sewage is pumped out from the sedimentation tank 12, when the sludge at the bottom of the sedimentation tank 12 accumulates, start the driving motor 43, drive the screw rod 42 to rotate, and the sewage at the bottom of the sedimentation tank 12 The sludge is discharged into the second collection box 45 along the fixed cylinder 41 and the sludge discharge pipe 44 .

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (9)

1. A sewage pretreatment tank for a sewage plant, characterized in that it includes a pool body (1), a first filter assembly (2), a second filter assembly (3) and a pumping assembly (5), the first filter The component (2), the second filter component (3) and the pumping component (5) are sequentially arranged in the pool body (1) from top to bottom; The pool body (1) includes an interconnected water inlet pipe (11) and a sedimentation tank (12); The first filter assembly (2) includes a filter screen (21) and a filter conduit (22), the filter screen (21) is arranged on the inner wall of the water inlet pipe (11), and a reserved opening is arranged on it; the filter conduit (22) The corresponding reserved port is connected to the filter screen (21), and its bottom end extends out of the pool body (1); The second filter assembly (3) includes a sand mesh (31) and an outlet (32), the sand mesh (31) is obliquely arranged on the inner wall of the water inlet pipe (11); the outlet (32) ) corresponding to the lower end of the sand mesh plate (31) is arranged on the side wall of the water inlet pipe (11); The pumping assembly (5) includes a drainage pipe (52) and a water pump (51), the bottom end of the drainage pipe (52) is located in the sedimentation tank (12), and the top end protrudes out of the pool body (1); the water pump ( 51) Set on the drain pipe (52). 2. A sewage pretreatment tank for a sewage plant according to claim 1, characterized in that it also includes a sludge discharge assembly (4), and the sludge discharge assembly (4) includes a fixed cylinder (41), a screw Rod (42) and drive motor (43); the bottom end of the fixed cylinder (41) is located at the bottom of the sedimentation tank (12), the top end protrudes out of the tank body (1), and the cylinder body located outside the tank body (1) A sewage outlet is opened on the top; the screw rod (42) is rotated and installed in the fixed cylinder (41); the power output end of the driving motor (43) is connected to the screw rod (42). 3. A sewage pretreatment tank for a sewage plant according to claim 1, characterized in that: the first filter assembly (2) further includes a vibrating member (23), and the vibrating member (23) includes a fixed plate , a fixed rod and a spring; the fixed plate is fixed on the inner wall of the water inlet pipe (11); the fixed rod is inserted at the end of the filter screen (21), and its top and bottom ends are connected with the fixed plate; There are two springs, which are respectively sleeved on the fixed rods on the upper and lower sides of the filter screen (21). 4. A sewage pretreatment tank for a sewage plant according to claim 1, characterized in that: a first collection box (24) is provided on the outer wall of the water inlet pipe (11), and the first collection box (24 ) is located below the outflow port (32), and is set corresponding to the bottom end of the filter conduit (22). 5. A sewage pretreatment tank for a sewage plant according to claim 1, characterized in that: a chute (34) is provided on the side wall of the water inlet pipe (11) above the corresponding outlet (32), and the A baffle (33) is slidably arranged in the chute (34), and a handle is arranged on the baffle (33). 6. A sewage pretreatment tank for a sewage plant according to claim 2, characterized in that: the fixed cylinder (41) is provided with a sewage discharge pipe (44) at the position corresponding to the sewage discharge outlet, and the sewage discharge pipe (44) is vertical to the settings. 7. A sewage pretreatment tank for a sewage plant according to claim 6, characterized in that: a second collection box (45) is provided on the outer wall of the sedimentation tank (12), and the second collection box (45) Located below the blowdown pipe (44). 8. A sewage pretreatment tank for a sewage plant according to claim 1, characterized in that: the water inlet pipe (11) is vertically arranged on the top of the sedimentation tank (12), and its cross section is rectangular; the sedimentation The bottom of the pool (12) is set in an inverted conical shape. 9. A sewage pretreatment tank for a sewage plant according to claim 1, characterized in that: the filter screen (21) is set in an inverted conical shape, and the reserved opening is set at the center of the filter screen (21) Location.

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