CN209778348U

CN209778348U - Closed water conservancy sieve grid device

Info

Publication number: CN209778348U
Application number: CN201920473245.4U
Authority: CN
Inventors: 潘胜; 芦艳平; 余正学; 商文秀; 呼永锋
Original assignee: Beijing Xincheng Yulu Environmental Protection Technology Co Ltd
Current assignee: Beijing Xincheng Yulu Environmental Protection Technology Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2019-12-13
Anticipated expiration: 2029-04-09

Abstract

The utility model provides a closed water conservancy sieve grid device, include: the sewage filter comprises a water inlet unit, a filtering unit and a sewage transmission unit; the sewage enters the filtering unit through the water inlet unit, the filtering unit filters the sewage, and solid dirt remaining after filtering enters the dirt conveying unit and is discharged through the dirt conveying unit; the water inlet unit includes: the water distributor is arranged at the bottom of the water tank, the water inlet flange is arranged at the bottom of the water inlet device, and the water retaining overflow weir is arranged at the top of the water tank; the filter unit includes: the sieve plate, the liquid storage tank and a water outlet arranged at the bottom of the liquid storage tank; the dirt transfer unit includes: a spiral conveyer and a dirt discharge opening arranged at the output end of the spiral conveyer.

Description

Closed water conservancy sieve grid device

Technical Field

The utility model relates to a sewage treatment field especially relates to a closed water conservancy sieve grid device.

background

the preliminary treatment stage (i.e. physical treatment stage) of sewage treatment is to perform preliminary treatment on sundries in various shapes in sewage in a solid-liquid separation mode. In the prior art, a rotary mechanical grating machine is generally adopted to carry out solid-liquid separation treatment, the rotary mechanical grating machine drives rake teeth to reciprocate by a chain, so that a large number of easily damaged parts are produced, a motor, a gearbox and a bearing need to be frequently maintained and matched with a screw conveyor, and therefore, the labor cost and the maintenance frequency are high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the installation of being convenient for is provided to prior art's not enough, easy operation and clearance, and the maintenance frequency is few to possess remaining floater behind the drainage, the closed water conservancy sieve grid device of direct output function of rubbish such as particulate matter, etc.

The utility model discloses the technical problem that solve is realized through following technical scheme:

a closed hydraulic screen grid assembly comprising: the sewage filter comprises a water inlet unit, a filtering unit and a sewage transmission unit; the sewage enters the filtering unit through the water inlet unit, the filtering unit filters the sewage, and solid dirt remaining after filtering enters the dirt conveying unit and is discharged through the dirt conveying unit; the water inlet unit includes: the water distributor is arranged at the bottom of the water tank, the water inlet flange is arranged at the bottom of the water inlet device, and the water retaining overflow weir is arranged at the top of the water tank; the filter unit includes: the sieve plate, the liquid storage tank and a water outlet arranged at the bottom of the liquid storage tank; the dirt transfer unit includes: a spiral conveyer and a dirt discharge opening arranged at the output end of the spiral conveyer.

Preferably, the sieve plate is obliquely arranged in the filtering unit, a plurality of sieve channels are arranged on the sieve plate, and each sieve channel is wedge-shaped.

Preferably, the filter unit further comprises: the screen plate cleaning unit is arranged in parallel with the screen plate; the sieve cleaning unit includes: the cleaning brush comprises a rolling device and a plurality of cleaning brushes arranged on the rolling device.

Preferably, a filter plate having water permeable holes is provided at the bottom of the screw conveyor.

Preferably, the clearance between each screen passage and the adjacent screen passage is 1mm-20 mm.

The closed water conservancy sieve grating device of the utility model has the advantages of convenient installation of equipment, simple operation and cleaning, less maintenance frequency, energy saving and consumption reduction, and can replace a rotary mechanical grating machine of 1mm-20 mm; in addition, the device also has the function of directly outputting garbage such as floating objects, particles and the like which are remained after water filtration.

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a front view of the structure of the closed type water conservancy sieve grating device of the present invention;

FIG. 2 is a side view of the structure of the closed type water conservancy sieve grating device of the present invention;

FIG. 3 is a schematic diagram of the operation of the closed type water conservancy screen grating device of the present invention;

Fig. 4 is the schematic diagram of the sieve channel structure of the present invention.

Detailed Description

Fig. 1 is the utility model discloses closed water conservancy sieve grid device structure elevation, fig. 2 is the utility model discloses closed water conservancy sieve grid device structure side view. As shown in fig. 1 and with reference to fig. 2, the utility model discloses a closed water conservancy sieve grid device includes: a water inlet unit 1, a filtering unit 2 and a dirt transmission unit 3; the water inlet unit 1 includes: the water distributor comprises a water tank 11, a water distributor 12 arranged at the bottom of the water tank 11, a water inlet flange 13 arranged at the bottom of the water inlet 12 and a water retaining overflow weir 14 arranged at the top of the water tank.

the filter unit 2 includes: the sieve plate 21, the liquid storage tank 22 and a water outlet 23 arranged at the bottom of the liquid storage tank; the sieve plate 21 is obliquely arranged in the filtering unit 2, a plurality of sieve channels 24 are arranged on the sieve plate 21, each sieve channel is wedge-shaped, and the gap between each sieve channel 24 and the adjacent sieve channel 24 is 1-20 mm. In addition, the filter unit 2 further includes: the sieve plate cleaning unit is arranged in parallel with the sieve plate 21; the sieve cleaning unit includes: a rolling device 25 and a plurality of cleaning brushes 26 arranged on the rolling device.

The dirt transfer unit 3 includes: the spiral conveyer 31, be equipped with the filter 32 that has water permeable hole 33 in spiral conveyer 31 bottom, the filter 32 is the tetrafluoro board, and the effect of tetrafluoro board is low noise, and is wear-resisting, and spiral conveyer 31 can be without pushing away of dead angle and scrape the filth to and the filth discharge port 33 that sets up at spiral conveyer 31 output.

Fig. 3 is the working principle diagram of the closed water conservancy sieve grating device of the utility model. As shown in fig. 3 and with reference to fig. 1-2, the working principle of the closed water conservancy sieve grating device of the present invention is as follows: the sewage enters the water separator 12 through the water inlet flange 13 and then enters the water tank 11 through the water separator 12 (the water separator can cause the overall problem of the liquid level to rise and uniformly flow on the sieve plate 21 in a balanced manner, so that the local impact of the liquid level can be avoided); wherein the inlet flange 13 controls the size of the sewage flow entering the water tank 11. When the water level in the water tank 11 is gradually increased, sewage overflows to the sieve plate 21 through the water retaining overflow weir 14, and the water retaining overflow weir 14 is used for buffering the overflowing sewage, so that the problem that the excessive sewage cannot be filtered in time when flowing through the sieve plate 21 is avoided.

fig. 4 is the schematic diagram of the sieve channel structure of the present invention. As shown in fig. 4, when the sewage flow channel screen plate 21 is on, due to gravity, the liquid flows out of the flow channel storage tank 22 in the screen channel 24 and flows out through the water outlet 23. Each screen is wedge-shaped, which is helpful for separating smaller particles in sewage.

Since the sieve plate 21 is disposed to be inclined, the solid filth remaining on the sieve plate 21 after passing through the sieve is slid toward the filth transfer unit 3 along the inclined angle, and the screw conveyor 31 in the transfer unit 3 transfers the solid filth to the filth discharge port 33 by a screw rotating motion. Certainly, in order to better achieve the solid-liquid separation effect, a filter plate 32 with water permeable holes 33 is further arranged below the bottom of the spiral conveyor 31, and liquid flows into the liquid storage tank 22 through the water permeable holes 33 due to gravity factors, so that the secondary solid-liquid separation effect is achieved. Further, when the screw conveyor 31 pushes the garbage to the discharging pipe 34 inclined at 45 degrees, the water remaining on the dirt flows toward the water tank 11 through the filtering plate 32 under the influence of gravity.

Preferably, in the filtering unit 2, a sieve plate cleaning unit is further provided, which includes a rolling device 25 and a plurality of cleaning brushes 26, and since the sieve plate cleaning unit is disposed in parallel with the sieve plate 21, when the rolling device 25 includes a rolling wheel 251 and a rolling curtain 252 disposed on the rolling wheel 251, when the rolling wheel 251 drives the rolling curtain 252 to roll, the cleaning brushes 26 disposed on the rolling curtain 252 perform a cleaning motion on the sieve plate 21 along with the rolling curtain 252, and the dirt left on the sieve plate 21 is swept into the conveying unit 3.

Claims

1. A closed water conservancy sieve grid device which characterized in that includes: the sewage filter comprises a water inlet unit, a filtering unit and a sewage transmission unit; the sewage enters the filtering unit through the water inlet unit, the filtering unit filters the sewage, and solid dirt remaining after filtering enters the dirt conveying unit and is discharged through the dirt conveying unit;

The water inlet unit includes: the water distributor is arranged at the bottom of the water tank, the water inlet flange is arranged at the bottom of the water inlet device, and the water retaining overflow weir is arranged at the top of the water tank;

The filter unit includes: the sieve plate, the liquid storage tank and a water outlet arranged at the bottom of the liquid storage tank;

the dirt transfer unit includes: a spiral conveyer and a dirt discharge opening arranged at the output end of the spiral conveyer.

2. A closed water conservancy screen grid assembly according to claim 1, wherein the screen deck is arranged in the filter unit in an inclined manner, and a plurality of screen tracks are provided on the screen deck, each screen track being wedge-shaped.

3. The enclosed hydraulic screen grid assembly of claim 2, wherein the filter unit further comprises: the screen plate cleaning unit is arranged in parallel with the screen plate;

The sieve cleaning unit includes: the cleaning brush comprises a rolling device and a plurality of cleaning brushes arranged on the rolling device.

4. A closed hydraulic screen grid assembly as set forth in claim 1 wherein a filter plate having water permeable holes is provided in the bottom of said screw conveyor.

5. A closed hydraulic screen grid assembly as claimed in claim 2 wherein the gap between each bar screen and the adjacent screen is in the range 1mm to 20 mm.