CN205995146U - Stain disease is processed with folded umbrella shape unpowered debris automatic sieving device - Google Patents

Abstract

The utility model relates to an umbrella-shaped automatic screener for unpowered sundries used for sewage and waste water treatment. It consists of a screening box and a screening grid; the screening box includes a box, a fixed groove, a slag collecting hopper, a water inlet pipe and a slag discharge valve; the screening grid includes multiple umbrella-shaped screening plates, multiple vertical screens Separating plate, screening plate support, top slag retaining plate and lower slag retaining plate; the utility model has the following advantages: it eliminates the possibility of jamming or winding mechanical grids and other solid-liquid separation equipment and facilities. Solid-liquid separation treatment can be carried out in stages, and the solid-liquid separation effect is better. It can greatly reduce the impurity load of the original solid-liquid separation equipment or facilities (such as perforated plates), so that the investment in this part can be saved, and the probability of being blocked is also greatly reduced. Reduce its footprint. The failure rate of the solid-liquid separation process is greatly reduced. It can prevent sewage overflow problems caused by blockage or mechanical failure. The choice of the original solid-liquid separation method can be diversified. Maintenance frequency, maintenance workload and work intensity are greatly reduced. Easy to install and maintain.

Description

Umbrella-shaped unpowered debris automatic screener for sewage and wastewater treatment

technical field

The utility model belongs to the technical field of sewage and waste water treatment devices, in particular to an umbrella-shaped automatic screener for unpowered sundries used for sewage and waste water treatment.

Background technique

With my country's gradual emphasis on green environmental protection work, this work has now risen to the level of national law. At present, in the treatment of sewage and wastewater such as catering wastewater, it often occurs that disposable chopsticks, bone fragments, iron shavings, large pieces of plastic film, rags, broken bricks, stones, steel bars and other sundries are entrained in the sewage and wastewater. The hard debris is a large-sized debris that is easy to entangle. It often damages or entangles the slag removal and filtration machinery or facilities such as the mechanical grille in the solid-liquid separation process, and causes blockage, which often causes mechanical failure. In the slightest, it will cause downtime, and the sewage and wastewater treatment cannot be carried out normally. In severe cases, it will cause damage to mechanical parts or motors, resulting in frequent replacement of parts or motors, etc., resulting in frequent maintenance, difficult maintenance, poor maintenance labor conditions, and long downtime. Problems such as high maintenance costs ultimately prevent sewage and wastewater from being properly treated.

Contents of the invention

In order to solve the above problems, the purpose of this utility model is to provide an umbrella-shaped non-powered debris automatic screener for sewage and wastewater treatment that prevents solid-liquid separation equipment such as mechanical grids from being stuck or entangled.

In order to achieve the above purpose, the utility model provides an umbrella-shaped non-powered automatic debris filter for sewage and wastewater treatment, which is composed of a screening box and a screening grid; wherein the screening box includes a box, a fixed groove, a slag collection Bucket, water inlet pipe and slag discharge valve; the box body is composed of front and rear end plates and left and right side plates, wherein the height of the rear end plate is lower than that of the front end plate and the left and right The lower part of the rear end of the plate; the fixing groove is a bracket set on the inner side of the left and right side plates on the box body, and the lower end is flush with the upper end of the rear end plate; the slag collecting bucket is connected to the lower end of the upper box body, and the lower end There is a slag discharge port; the slag discharge valve is installed at the slag discharge port; the water inlet pipe is set on any side plate of the box; the screening grid is detachably set in the fixed groove, including multiple umbrella screens Separation plate, multiple vertical screening plates, screening plate support, top slag retaining plate and lower slag retaining plate; each umbrella-shaped screening plate is composed of two flat plates whose upper ends are connected and form an angle with each other. The vertical screening plates are installed horizontally at the middle and lower part of the screening plate support in a superimposed manner with a distance apart, and the length direction is consistent with the left and right directions of the box body; multiple vertical screening plates are arranged at intervals and vertically fixed on multiple umbrella-shaped On the inner edge of the screening plate; viewed from the front end, the vertical screening plate and the umbrella-shaped screening plate together form a grid-like water passage; the top slag retaining plate is installed vertically on the top of the highest umbrella-shaped screening plate , to prevent the problem that in some cases, when the water level is higher than the top of the highest umbrella-shaped screening plate, the separated sundries will overflow with the water; The outer bottom of the plate, the lower part is close to the upper edge of the rear end plate on the upper box body, so as to prevent the separated sundries from leaking through the lower part of the umbrella-shaped screening plate.

The upper box body is also provided with a box cover for covering the upper port.

The included angle between two flat plates on the umbrella-shaped screening plate is 15°-120°, and the distance between two adjacent umbrella-shaped screening plates is 10mm-120mm.

The distance between the two adjacent vertical screening plates is 10mm-120mm.

The utility model provides an umbrella-shaped automatic screener for unpowered sundries for sewage and wastewater treatment, which has the following advantages:

1. Eliminate the possibility of jamming or winding mechanical grids and other solid-liquid separation equipment and facilities.

2. Solid-liquid separation treatment can be carried out in stages, and the solid-liquid separation effect is better.

3. It can greatly reduce the impurity load of the original solid-liquid separation equipment or facilities (such as perforated plates), so that the investment in this part can be saved, and the probability of being blocked is also greatly reduced. Reduce its footprint.

4. The failure rate of the solid-liquid separation process is greatly reduced.

5. It can prevent sewage overflow caused by blockage or mechanical failure.

6. The choice of the original solid-liquid separation method can be diversified.

7. The maintenance frequency, maintenance workload and work intensity are greatly reduced.

8. Easy to install and maintain.

9. The equipment itself is not easy to be blocked.

10. It is convenient to integrate with subsequent equipment such as solid-liquid separation.

11. The number of layers of the umbrella board can be flexibly determined according to the amount of water

12. The spacing and angle of the umbrella-shaped screening plate and the vertical screening plate can be flexibly adjusted according to the size (including length) of intercepting debris.

13. It is convenient for standardized production and can be made into prefabricated parts.

14. The equipment is simple and does not require any electrical equipment. Energy saving and environmental protection.

15. Low cost.

16. No manual operation is required.

17. It has a wide range of applications and has extensive promotion and practical value.

Description of drawings

Fig. 1 is a top view of the structure of an umbrella-shaped unpowered debris automatic sifter for sewage and wastewater treatment provided by the utility model.

Fig. 2 is a sectional view along B-B in Fig. 1 .

Fig. 3 is a sectional view along A-A in Fig. 1 .

Fig. 4 is a top view of the structure of the screening box in the umbrella-shaped automatic screener for sewage and waste water treatment provided by the present invention.

Fig. 5 is a cross-sectional view along B-B in Fig. 4 .

Fig. 6 is a sectional view along A-A in Fig. 4 .

Fig. 7 is a top view of the screening grid structure in the umbrella-shaped non-powered automatic debris screening device for sewage and wastewater treatment provided by the utility model.

Fig. 8 is a cross-sectional view along B-B in Fig. 7 .

Fig. 9 is a sectional view along A-A in Fig. 7 .

detailed description

The umbrella-shaped unpowered debris automatic sifter for sewage and wastewater treatment provided by the utility model will be described in detail below in conjunction with the accompanying drawings and specific implementation.

As shown in Figures 1 to 9, the umbrella-shaped unpowered debris automatic screener for sewage and wastewater treatment provided by the utility model is composed of a screening box and a screening grid; wherein the screening box includes a box 1, Fixed tank 2, slag collecting hopper 3, water inlet pipe 4 and slag discharge valve 11; box body 1 is composed of front and rear end plates and left and right side plates, wherein the height of the rear end plate is lower than that of the front end plate and the left and right sides The height of the plate is connected to the rear end lower part of the left and right side plates; the fixed groove 2 is a bracket arranged on the inner side of the left and right side plates on the box body 1, and the lower end is flush with the upper end of the rear end plate; The slag hopper 3 is connected to the lower end of the upper box body 1, and a slag discharge port is provided at the lower end; the slag discharge valve 11 is installed at the slag discharge port; the water inlet pipe 4 is arranged on any side plate of the box body 1; the screening grid Set in the fixed groove 2 in a detachable manner, including a plurality of umbrella-shaped screening plates 5, a plurality of vertical screening plates 6, a screening plate support 7, a top slag retaining plate 8 and a lower slag retaining plate 9; each An umbrella-shaped screening plate 5 is composed of two flat plates whose upper ends are connected and form an angle with each other. Multiple umbrella-shaped screening plates (5) are horizontally installed in the middle and lower part of the screening plate support 7 in a stacked manner at intervals. And the length direction is consistent with the left-right direction of the box body 1; a plurality of vertical screening plates 6 are arranged at intervals, and are vertically fixed on the inner edges of a plurality of umbrella-shaped screening plates 5; when viewed from the front end, the vertical screening plates 6 and The umbrella-shaped screening plates 5 together form a grid-like water passage; the top slag-blocking plate 8 is vertically installed on the top of the highest umbrella-shaped screening plate 5 to prevent the water level from being higher than the highest umbrella-shaped screen in some cases. At the top of the sub-panel 5, the separated sundries overflow with the water flow; the lower slag retaining plate 9 is installed obliquely, the upper part is fixed on the outer bottom of the lowermost umbrella-shaped screening plate 5, and the lower part is closely attached to the upper box body 1 on the upper edge of the rear end plate to prevent the separated sundries from leaking from the lower part of the umbrella-shaped screening plate 5.

The upper box body 1 is also provided with a box cover 10 for covering the upper port.

The included angle between two flat plates on the umbrella-shaped screening plate 5 is 15°-120°, and the distance between two adjacent umbrella-shaped screening plates 5 is 10mm-120mm.

The distance between the two adjacent vertical screening plates 6 is 10mm-120mm.

The working principle of the umbrella-shaped non-powered sundry automatic screener for sewage and waste water treatment provided by the utility model is described as follows: firstly, waste water such as catering waste water is injected into the upper box 1 from the water inlet pipe 4 . Due to the large volume of the upper box 1, the flow rate of the sewage and wastewater will be greatly reduced after entering the upper box 1. Under the action of gravity, bone fragments, iron shavings, broken bricks, steel bars, stones , lime, vegetable root and similar " hard " sundries etc., will rely on gravity to sink in the slag collecting bucket 3 that is located at the top casing 1 bottom. This part of sundries with a specific gravity greater than water will not rise with the rise of the water level, so that this part of sundries will be separated from the waste water first.

After that, the sundries with lighter specific gravity that can continue to flow with the sewage and wastewater will enter the height range of the screening grid when the water enters and the water level rises above the liquid level at the top of the slag collecting hopper 3, and then flow to the screening grid. . When flowing through the screen grid, it first passes through the vertical screen plate 6 . The vertical screening plate 6 not only plays the role of isolating large-scale debris, but also has the function of preventing the isolated debris from blocking the water inlet of the umbrella-shaped screening plate 5 . At this time, large-sized debris whose horizontal dimension is greater than the distance between the vertical screening plates 6 , such as disposable chopsticks, rags, plastic films, etc., will be intercepted before the vertical screening plates 6 . Since the vertical screening plate 6 has a certain width, the space between the outer end edge of the vertical screening plate 6 and the umbrella-shaped screening plate 5 can not only intercept large-sized debris, but also make the intercepted A certain distance is kept between the object and the inlet of the umbrella-shaped screening plate 5, thereby avoiding the risk that the water inlet of the umbrella-shaped screening plate 5 is blocked. During this process, if longer hard debris flows perpendicular to the water inlet direction of the umbrella-shaped screening plate 5, when flowing through the umbrella-shaped screening plate 5, due to the gap between the adjacent umbrella-shaped screening plates 5 The channel formed between the room and the umbrella-shaped screening plate 5 and the vertical screening plate 6 is a turning-type curved channel, and is restricted by the four directions of up, down, left, and right at the same time. In addition, the length of the debris is long, so when turning The place will be blocked and unable to pass through, and these sundries will be restricted in front of the screening grid, so as to ensure that the subsequent grid machine and other machinery will not be stuck.

The sundries remaining in the water with light specific gravity and size smaller than the grid size formed by the vertical screening plate 6 and the umbrella-shaped screening plate 5 can be discharged outwards with the water flow through the return channel of the screener and enter the subsequent Solid-liquid separation process, and then further fine separation treatment.

When the water injection is finished, the highest water level will drop below the umbrella-shaped screening plate 5 at the bottom of the screening grid, and the large-sized debris intercepted at this time will automatically slide down to the slag collecting hopper 3 as the liquid level drops middle. After a certain amount of waste slag is stored in the slag collection hopper 3, the slag discharge valve 11 is opened for slag discharge, and finally the slag discharge valve 11 is closed, so far the whole process of automatic separation of impurities in the sewage and wastewater is completed.

In addition, since the umbrella-shaped screening plate 5 is set at a relatively large inclination angle, it is difficult for sludge and sundries to adhere to it, but it will automatically slide down under the action of gravity, so it will not cause blockage, and at the same time, it can Ensure that the water flow conditions are good, the resistance is small, the flow speed is fast, and the water passing ability is strong.

In addition, the sieve can be used only by inserting it into the fixing groove 2 of the upper box body 1 . It can be extracted from the fixing groove 2 at any time if necessary, which is very convenient without any tools. It can continue to be used after removing the sundries on it and then inserting it back into the fixing groove 2, so the operation is very convenient and fast. Because the channel is very short, and the vertical screening plate 6 is vertically arranged, and the umbrella-shaped screening plate 5 is inclined downward at a large angle, the channel is effectively cleaned automatically when the water flow passes through.

Claims (4)

1. A stacked umbrella-shaped non-powered debris automatic sifter for sewage and wastewater treatment, characterized in that: the stacked umbrella-shaped non-powered debris automatic sifter for sewage and wastewater treatment is composed of a screening box and a screening The screening box consists of a box (1), a fixed tank (2), a slag collecting hopper (3), a water inlet pipe (4) and a slag discharge valve (11); the box (1) consists of a front and a rear The end plate is composed of left and right side plates, wherein the height of the rear end plate is lower than that of the front end plate and the height of the left and right side plates, and is connected to the lower part of the rear end of the left and right side plates; The bracket on the inner side of the left and right side panels on the body (1), and the lower end is flush with the upper end of the rear end panel; the slag collecting bucket (3) is connected to the lower end of the upper box body (1), and the lower end is provided with a The slag discharge port; the slag discharge valve (11) is installed at the slag discharge port; the water inlet pipe (4) is set on any side plate of the box body (1); the screening grid is detachably set in the fixed groove (2 ), including a plurality of umbrella-shaped screening plates (5), a plurality of vertical screening plates (6), a screening plate support (7), a top slag retaining plate (8) and a lower slag retaining plate (9); Each umbrella-shaped screening plate (5) is composed of two flat plates whose upper ends are connected and form an angle with each other. Multiple umbrella-shaped screening plates (5) are horizontally installed on the screening plate support (7) in a stacked manner at intervals. ), and the length direction is consistent with the left and right directions of the box body (1); multiple vertical screening plates (6) are arranged at intervals and vertically fixed on the inner edges of multiple umbrella-shaped screening plates (5); Viewed from the front end, the vertical screening plate (6) and the umbrella-shaped screening plate (5) together form a grid-like water passage; the top slag retaining plate (8) is vertically installed on the highest umbrella-shaped screening plate ( 5) to prevent the problem that in some cases, when the water level is higher than the top of the highest umbrella-shaped screening plate (5), the separated sundries overflow with the water; The upper part is fixed on the outer bottom of the bottom umbrella-shaped screening plate (5), and the lower part is closely attached to the upper edge of the rear end plate on the upper box body (1) to prevent the separated sundries from being screened from the umbrella The bottom of plate (5) leaks in the past. 2. The umbrella-shaped non-powered automatic debris filter for sewage and wastewater treatment according to claim 1, characterized in that: the upper box (1) is also provided with a cover for covering the upper port Lid (10). 3. The sewage and waste water treatment according to claim 1 is characterized in that: the angle between two flat plates on the described umbrella-shaped screening plate (5) is 15°-120°, and the distance between two adjacent umbrella-shaped screening plates (5) is 10mm-120mm. 4. The umbrella-shaped automatic screener for sewage and waste water treatment according to claim 1, characterized in that: the distance between the two adjacent vertical screening plates (6) is 10mm ~120mm.