CN114380412A

CN114380412A - Sewage pretreatment device

Info

Publication number: CN114380412A
Application number: CN202210041832.2A
Authority: CN
Inventors: 程胜利
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-04-22

Abstract

The invention discloses a sewage pretreatment device which comprises a water inlet tank, wherein one side of the water inlet tank is provided with a screen mesh spiral slag extractor, the screen mesh spiral slag extractor is communicated with a tank body through a drain pipe, the bottom of the tank body is provided with a horizontal transverse spiral device, the horizontal transverse spiral device is connected with a lifting vertical spiral device in an occluded manner, the horizontal transverse spiral device and the lifting vertical spiral device are matched with each other to carry out relay transmission on accumulated sand at the bottom of the tank body, a dissolved air releaser is arranged in the tank body, the side surface of the tank body is provided with a dissolved air pump, a pipeline at the inlet end of the dissolved air pump is connected into a water outlet tank body, the outlet of the dissolved air pump is connected with the dissolved air releaser, sludge in sewage is floated and gathered on the inner top surface of the tank body through the mutual matching of the dissolved air pump and the dissolved air releaser, and one side of the tank body is provided with a transverse spiral device for collecting sludge on the inner top surface of the tank body. The invention has the advantages of small occupied area, simple operation, saving the power consumption generated by the secondary lifting of sewage and greatly saving the operation cost.

Description

Sewage pretreatment device

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage pretreatment device.

Background

In the sewage treatment industry, for organic waste anaerobic digestion biogas slurry such as landfill leachate, kitchen and the like, industrial sewage such as livestock slaughter plants and the like, the sewage is characterized by high oil content, high sand content and high suspended matter concentration, if physical pretreatment is not carried out, raw water is directly discharged into a biochemical treatment tank, the sludge activity of a biochemical system is reduced, biochemical bacteria can not grow, meanwhile, oil blocks a drainage ultrafiltration membrane of the biochemical system, the biochemical system can not normally run, and the whole sewage treatment plant is paralyzed.

Therefore, in order to ensure the stable operation of the subsequent biochemical treatment, the perfect pretreatment of the sewage is important.

At present, the domestic pretreatment measures generally adopted for the sewage with high oil content, high suspended matters and large sand content are that a series of independent pretreatment devices are adopted to remove various pollutants in sections, large-size substances such as fibers and hairs in raw water are removed through a grating, grease in the raw water is floated on the surface through an oil separation sedimentation tank, meanwhile, a large amount of sand substances with larger inorganic analog weight ratio are precipitated and the bottom of the oil separation sedimentation tank, and finally, the suspended matters in the raw water are collected on the air flotation surface by utilizing the principle of an air flotation device to form sludge discharge.

In the existing pretreatment measures, various devices are sequentially arranged in sequence according to a flow. The whole route has the disadvantages of long process, large equipment quantity, large occupied area, high investment cost and particularly complex operation control.

In the prior art, because each section of equipment is far away, sludge or residue generated by each section of treatment unit can be collected and transported independently, so that the workload is increased, odor is generated, and the environment is influenced.

The route in the prior art generally needs two-stage lifting, namely, the incoming water is filtered by a channel grid, then is conveyed to an oil separation sedimentation tank through a first-stage lifting pump, is treated by the oil separation sedimentation tank and then is lifted to air floatation equipment through a second-stage lifting pump, so that the lifting pump equipment is increased, the running power consumption is generated, and the running cost is increased.

Disclosure of Invention

The problem above is solved, a sewage pretreatment device is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a sewage pretreatment device, includes the case of intaking, the one side-mounting of case of intaking has the screen cloth spiral and carries the sediment ware, it carries the sediment ware to have the screen cloth spiral and passes through drain pipe and box intercommunication, the bottom half is equipped with horizontal spiral device, horizontal spiral device interlock is connected with the promotion and erects spiral device, horizontal spiral device erects spiral device with the promotion and mutually supports the long-pending sand of bottom half and carry out the relay transmission, be equipped with dissolved air releaser in the box, box side-mounting has dissolved air pump, and dissolved air pump entrance point pipeline inserts out the water tank body, dissolved air pump export links to each other with dissolved air releaser, and the mud that makes in the sewage through dissolved air pump and dissolved air releaser mutually support floats the gathering at the internal top surface of box, box one side is equipped with the horizontal spiral device that is used for collecting top surface mud in the box.

The sewage pretreatment device provided by the invention also has the following technical characteristics:

for example, in the combined sewage pretreatment system provided by an embodiment of the present disclosure, a water inlet is disposed at one side of the water inlet tank, and a quick-opening type tank door is hinged to the top of the water inlet tank.

For example, in the combined sewage pretreatment system provided by an embodiment of the present disclosure, a liquid level sensor is installed on the quick-opening type tank door.

For example, in a combined sewage pretreatment system provided by an embodiment of the present disclosure, the spiral slag extractor with a screen discharges the slag fiber substances through the first discharge port.

For example, in the combined sewage pretreatment system provided by an embodiment of the present disclosure, a cleaning water valve is disposed on the spiral slag extractor with the screen.

For example, in the combined sewage pretreatment system provided by an embodiment of the present disclosure, the tank body is tapered, the horizontal spiral device penetrates through the bottom of the tank body, and one end of the horizontal spiral device is connected to one end of the vertical lifting spiral device.

For example, in the combined sewage pretreatment system provided by an embodiment of the present disclosure, the other end of the lifting vertical screw device is provided with a second sewage outlet.

For example, in the combined sewage pretreatment system provided by an embodiment of the present disclosure, one end of the transverse spiral device is provided with a third sewage draining outlet.

For example, in the combined sewage pretreatment system provided by an embodiment of the present disclosure, a quick-open cover plate is disposed on the top of the transverse screw device.

For example, in the combined sewage pretreatment system provided by an embodiment of the present disclosure, an automatic control box is disposed on an outer side wall of the tank body.

Compared with the prior art, the invention provides a sewage pretreatment device, which has the following beneficial effects:

1. the original pretreatment process has long and complex route, high investment and operation cost, large floor area and particularly complex operation management because each treatment device is separately arranged.

After the invention is adopted, one device can complete all functions, the occupied area is small, the operation is simple, the power consumption generated by the secondary lifting of sewage is saved, and the operation cost is greatly saved. Meanwhile, the combined equipment is provided with an automatic control box, and automatic start and stop of all the equipment are ensured by one key.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.

Fig. 1 is a front view of a sewage pretreatment apparatus according to the present invention.

Fig. 2 is a left side view of a sewage pretreatment device according to the present invention.

Fig. 3 is a top view of a sewage pretreatment device according to the present invention.

In the figure:

1. a water inlet tank; 2. a screen spiral slag extractor; 3. a drain pipe; 4. a box body; 5. a first drain port; 6. a quick-open outer cover; 7. a horizontal transverse screw device; 8. lifting the vertical screw device; 9. a dissolved air releaser; 10. a dissolved air pump; 11. a second sewage draining outlet; 12. a self-control box; 13. cleaning a water valve; 14. a water inlet; 15. a liquid level sensor; 16. a quick-open type box door; 17. a transverse screw device; 18. a third sewage draining outlet; 19. a quick-open cover plate; 20. and (6) overhauling the valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

The utility model provides a sewage pretreatment device, includes into water tank 1, the installation of one side of case 1 that intakes has screen cloth spiral to carry sediment ware 2, it carries sediment ware 2 through drain pipe 3 and box 4 intercommunication to have the screen cloth spiral. The spiral residue extractor 2 with the screen discharges residue fiber substances through a first sewage discharge port 5.

The sewage is filtered by a spiral slag extractor 2 with a screen in the water inlet tank 1, and the filtered water is discharged into a tank body 4 through a water discharge pipe 3. The slag fiber substances intercepted on the screen are spirally lifted to the top end by the spiral slag extractor and are discharged by the spiral discharge chute.

The upper end of the spiral slag extractor 2 with the screen is provided with a quick-opening outer cover 6 with a hinge for opening and observing the filtered slag state at any time.

The box 4 is the toper, horizontal screw 7 runs through the box 4 bottom, and horizontal screw 7 one end is connected with promotion vertical screw 8 one end.

The bottom of the box body 4 is provided with a horizontal transverse screw device 7, the horizontal transverse screw device 7 is connected with a vertical lifting screw device 8 in an occluded mode, and the horizontal transverse screw device 7 and the vertical lifting screw device 8 are matched with each other to carry out relay transmission on accumulated sand at the bottom of the box body 4.

The horizontal transverse screw device 7 is used for conveying heavy materials deposited at the bottom to the vertical lifting screw device 8 through screws, and the vertical lifting screw device 8 is meshed and connected with the horizontal transverse screw device 7 to realize relay conveying of accumulated sand at the bottom.

The improved water-saving tank is characterized in that a dissolved air releaser 9 is arranged in the tank body 4, a dissolved air pump 10 is arranged on the side surface of the tank body 4, an inlet end pipeline of the dissolved air pump 10 is connected into the water outlet tank body 4, and an outlet of the dissolved air pump 10 is connected with the dissolved air releaser 9.

The dissolved air pump 10 carries out high-pressure dissolved air on the water in the box body 4, and then the water is released into the box through the dissolved air releaser 9, so that the sludge in the sewage is floated and gathered on the inner top surface of the box body 4.

A water inlet 14 is formed in one side of the water inlet tank 1, and a quick-opening type tank door 16 is hinged to the top of the water inlet tank 1. Through quick-opening door 16 for viewing the incoming water condition.

And a liquid level sensor 15 is arranged on the quick-opening type box door 16. Monitoring the liquid level through the liquid level sensor 15 ensures that the blockage occurs in the screen, and when the liquid level of the water inlet tank 1 is high, the system can give an alarm in time.

And a cleaning water valve 13 is arranged on the spiral slag extractor 2 with the screen. The spiral blades and screens are cleaned by a wash water valve 31.

The other end of the lifting vertical screw device 8 is provided with a second sewage outlet 11. The sand is conveyed to the top by the lifting vertical screw and then is discharged by the second sewage discharge outlet 11.

The bottom of the box body 4 is provided with a maintenance valve 20 which is used for emptying the material in the box body 4 when the equipment is maintained.

One end of the transverse screw device 17 is provided with a third sewage draining outlet 18, and sludge conveyed out of the box body 4 through the transverse screw device 17 is drained through a third sewage draining outlet 28.

The top of the transverse screw device 17 is provided with a quick-opening cover plate 19. The sludge discharge condition of the transverse screw device 17 is checked at any time through the quick-open cover plate 19.

And the outer side wall of the box body 4 is provided with a self-control box 12. The sewage treatment device is started and stopped by the automatic control box 12, and the liquid level alarm is set.

The following points need to be explained:

1. in the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to general designs.

2. Features of the disclosure in the same embodiment and in different embodiments may be combined with each other without conflict.

The above is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and shall be covered by the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A sewage pretreatment device comprises a water inlet tank and is characterized in that one side of the water inlet tank is provided with a screen spiral slag extractor, the spiral slag extractor with the screen is communicated with the box body through a drain pipe, a horizontal transverse spiral device is arranged at the bottom of the box body, the horizontal transverse screw device is connected with a lifting vertical screw device in an occluded manner, the horizontal transverse screw device and the lifting vertical screw device are matched with each other to carry out relay transmission on accumulated sand at the bottom of the box body, a dissolved air releaser is arranged in the tank body, a dissolved air pump is arranged on the side surface of the tank body, an inlet pipeline of the dissolved air pump is connected into the water outlet tank body, an outlet of the dissolved air pump is connected with the dissolved air releaser, make the mud in the sewage float the gathering at the internal top surface of box through dissolved air pump and dissolved air releaser mutually supporting, box one side is equipped with the horizontal screw means that is used for collecting top surface mud in the box.

2. The sewage pretreatment device of claim 1, wherein a water inlet is arranged at one side of the water inlet tank, and a quick-opening type tank door is hinged to the top of the water inlet tank.

3. The sewage pretreatment device of claim 2, wherein a liquid level sensor is mounted on the quick-opening type box door.

4. The pretreatment device of claim 1 or 4, wherein the screen-equipped screw extractor discharges the fibrous slag through the first discharge port.

5. The sewage pretreatment device according to claim 4 or claim, wherein a cleaning water valve is arranged on the spiral slag extractor with the screen.

6. The sewage pretreatment device of claim 1, wherein the tank body is conical, the horizontal transverse screw device penetrates through the bottom of the tank body, and one end of the horizontal transverse screw device is connected with one end of the lifting vertical screw device.

7. The sewage pretreatment device of claim 6, wherein a second sewage draining outlet is arranged at the other end of the lifting vertical spiral device.

8. The pretreatment device of claim 1, wherein a third sewage draining outlet is provided at one end of the transverse spiral device.

9. The sewage pretreatment device of claim 1, wherein a quick-opening cover plate is arranged on the top of the transverse spiral device.

10. The sewage pretreatment device of claim 1, wherein an automatic control box is arranged on the outer side wall of the box body.