CN110639246A - A kind of drum fine grid with grid slag pressing function - Google Patents

Abstract

The invention provides a rotary drum fine grid with grid slag pressing function. One end of the central axis of the drum in the grille penetrates through the outer casing and is connected to the drive motor installed on the outside of the outer casing. A scraper is installed obliquely on the lower right outer side of the drum grille, and a pressing screw is arranged at the bottom of the scraper, and one end of the pressing screw is installed. Connected with the drive device, the bottom of the pressing screw is provided with a filter screen, the bottom of the filter screen is provided with a drainage pipe, the bottom of the end of the pressing screw is provided with a slag outlet, and the outer casing at the lower left of the drum grille is provided with an outlet. water outlet. The fine drum grid with grid slag pressing function integrates the functions of decontamination, conveying and pressing, and has a compact structure and high work efficiency.

Description

A kind of drum fine grid with grid slag pressing function

technical field

The invention relates to a rotary drum fine grid, in particular to a rotary drum fine grid with a grid slag pressing function.

Background technique

The lack of water resources, the continuous growth of the economy, and the increase of the population will inevitably lead to the continuous increase of water prices. Therefore, vigorously developing the sewage reuse business can not only save limited water resources, alleviate the increasingly prominent water tension contradiction, but also can It can reduce the discharge of sewage, reduce the pollution to the surrounding water bodies, improve the human living environment, and save a lot of water resources. Sewage reuse is an important measure to promote the coordinated development of economy, environment and society, and there are huge business opportunities.

The fine drum grid is suitable for urban drainage projects to intercept the floating objects with heavy water or to separate the sundries, but the existing fine drum grid does not have the function of pressing the slag, and the use has great limitations. .

SUMMARY OF THE INVENTION

In order to solve the deficiencies in the prior art, the present invention provides a rotary drum fine grid with a grid slag pressing function, which integrates the functions of decontamination, conveying and pressing, and has a compact structure and high working efficiency.

In order to realize the above technical solutions, the present invention provides a fine drum grid with the function of squeezing the slag, including an outer casing, a rotary drum grid is installed in the outer casing, and the outer casing facing one side of the rotary drum grid is provided. A water inlet is provided on the upper part of the drum grid, and one end of the central axis of the drum in the drum grid penetrates the outer casing and is connected to the drive motor installed on the outside of the outer casing. There is a pressing screw, one end of the pressing screw is connected with the driving device, a filter screen is arranged at the bottom of the pressing screw, a drainage pipe is arranged under the filter screen, and a slag outlet is arranged at the bottom of the end of the pressing screw. A water outlet is provided on the outer casing at the lower left of the grid.

In the above technical solution, during the actual operation, the sewage flows into the water inlet area from the water inlet, and after being filtered by the drum grille, the particulate matter in the water is intercepted by the drum grille, adheres to it, and rotates with the drive motor. The central axis of the drum rotates, so that the drum grid rotates, and the intercepted particulate matter rotates to the scraper, and is scraped off the drum grid by the scraper, and falls to the screw pressing area along the scraper, and passes through the drum grid. The sewage filtered by the grid passes through the interior of the grid, then passes through the lower part of the drum grid, enters the water outlet area, and is discharged through the water outlet. After the impurities fall into the screw pressing area, the driving device drives the pressing screw to rotate, the water in the impurities and the water brought by backwashing are discharged downward through the filter screen, and the solid part remains in the screw pressing area, and is pressed by the pressing screw. , further dehydration, the liquid part and the squeezed water enter under the filter screen, and then discharge through the drain pipe. The dehydrated solid impurities are squeezed and dehydrated by the pressing screw, and finally discharged from the slag outlet.

Preferably, a backwashing nozzle is installed in the drum grid directly opposite the scraper, and one end of the backwashing nozzle is connected to the backwashing water inlet pipe. The backwashing nozzle adopts the recycle water or tap water in the factory, enters through the backwashing water inlet pipe, and is ejected from the backwashing nozzle. By setting the backwashing nozzle inside the grid, the scraper scrapes off the impurities on the grid, and the backwashing jet is sprayed out. The high-pressure water jet is sprayed from the inside of the grille to the outside, which promotes the separation of impurities from the grille and falls to the screw pressing area along the scraper.

Preferably, the outer body is divided into a water inlet area, a water outlet area and a screw pressing area by a partition plate, wherein the water inlet area is separated from the drum grid by a partition plate to form a water inlet area, and the bottom of the drum grid passes through the water inlet area. The separator is divided into a water outlet area, the water outlet is communicated with the water outlet area, and the screw pressing area is formed after the pressing screw is separated by the separator.

Preferably, the drive device includes a drive motor and a reducer, the output shaft of the drive motor is connected with the input shaft of the reducer, and the output shaft of the reducer is connected with the end shaft of the pressing screw.

Preferably, the filter screen adopts a semi-circular arc design and is installed at the bottom of the pressing screw along the transverse direction of the pressing screw.

Preferably, the top of the outer casing is provided with an overflow port. When the water intake increases or the water quality deteriorates, the filtration rate slows down, the liquid level in the water inlet area rises, and excess water is discharged from the overflow port. To ensure the safety of the device, sewage will not overflow.

The beneficial effects provided by the invention are as follows: one part of the fine drum grid with the function of pressing the screen slag is a fine drum grid, which is in the type of outside in and out to remove solid impurities in the sewage, and the other part is a screen slag screw press. It is used for pressing, dewatering and collecting solid impurities. While filtering sewage, the screen slag is dewatered and pressed. The integrated device saves land occupation and integrates the functions of decontamination, transportation and pressing. It has a compact structure and high work efficiency. .

Description of drawings

Figure 1 is a side view of the present invention.

Figure 2 is a front view of the present invention.

Fig. 3 is a side sectional view of the present invention.

Figure 4 is a plan view of the present invention.

In the figure: 1. Overflow port; 2. Water inlet; 3. Water outlet; 4. Drive motor; 5. Water inlet area; 6. Backwash water inlet pipe; 7. Screw pressing area; 8. Water outlet area; 9. Reducer; 10. Drum grille; 11. Backwash nozzle; 12. Scraper; 13. Pressing screw; 14. Filter screen; 15. Slag outlet; 16. Drain pipe; 17. Drum center shaft; 18 , Outer body.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Embodiment: A rotary drum fine grid with grid slag pressing function.

Referring to FIGS. 1 to 4 , a fine rotary drum grid with the function of slag pressing includes an outer casing 18 , a rotary drum grid 10 is installed in the outer casing 18 , and the rotary drum grid 10 is made of all stainless steel. A water inlet 2 is provided on the outer casing 18 on the side facing the drum grid 10. One end of the drum central axis 17 in the rotary drum grid 10 penetrates the outer casing 18 and is connected to the drive motor installed outside the outer casing 18. 4 connection, a scraper 12 is installed obliquely on the lower right outer side of the drum grille 10, a backwash nozzle 11 is installed in the drum grille 10 facing the scraper 12, and one end of the backwash nozzle 11 is connected to the backwash The water inlet pipe 6 is connected, and the backwash nozzle 11 adopts the reuse water or tap water in the factory, enters through the backwash water inlet pipe 6, and is ejected from the backwash nozzle 11. By setting the backwash nozzle 11 inside the grid, the scraper 12 scrapes the grid At the same time of adding impurities, the backwash nozzle 11 sprays high-pressure water column, which is sprayed from the inside of the grid to the outside, so that the impurities are separated from the grid and fall down along the scraper 12. The bottom of the scraper 12 is provided with a squeezing screw 13. The squeezing screw One end of 13 is connected with a drive device, the drive device includes a drive motor and a reducer 9, the output shaft of the drive motor is connected with the input shaft of the reducer 9, and the output shaft of the reducer 9 is connected with the end shaft of the pressing screw 13, The pressing screw 13 can be driven to rotate at a slow speed by the driving motor. The bottom of the pressing screw 13 is provided with a filter screen 14 . At the bottom of 13, a drainage pipe 16 is arranged below the filter screen 14, and a slag outlet 15 is arranged at the bottom of the end of the pressing screw 13. The top of the outer casing 18 is provided with an overflow port 1. When the amount of water inflow increases or the water quality deteriorates, the filtration rate slows down, the liquid level in the water inlet area rises, and excess water is discharged from the overflow port 1 to ensure that the device Safety, sewage will not overflow.

Referring to FIG. 3, the outer casing 18 is divided into a water inlet area 5, a water outlet area 8 and a screw pressing area 7 by a partition plate, wherein the water inlet 2 and the drum grid 10 are directly opposite to each other through the partition plate. In the water area 5, the bottom of the drum grid 10 is divided into a water outlet area 8 by a partition plate.

In order to further explain the present invention, the work flow of the present invention is explained as follows:

(1) The sewage flows into the water inlet area 5 from the water inlet 2, and is filtered by the drum grid 10. The particulate matter in the water is intercepted by the rotary drum grid 10 and attached to it, and the central axis of the drum is driven by the driving motor 4. 17 rotates, so that the drum grid 10 rotates, and the intercepted particulate matter rotates to the scraper 12, and is scraped off the drum grid 10 by the scraper 12. There is a backwash nozzle 11 on the inner side of the grid. When the scraper 12 scrapes off the impurities on the grid, the backwash nozzle 11 sprays high-pressure water column from the inside of the grid to the outside to promote the impurities to be separated from the grid and follow the scraper 12. Drop into screw press zone 7. The backwashing nozzle 11 adopts the reclaimed water or tap water in the factory, enters through the backwashing water inlet pipe 6 , and is ejected from the backwashing nozzle 11 .

(2) The sewage filtered by the drum grid 10 passes through the interior of the grid, then passes through the lower part of the drum grid 10, enters the water outlet area 8, and is then discharged through the water outlet 3.

(3) After the impurities fall into the screw pressing zone 7, the reducer 9 drives the pressing screw 13 to rotate, the moisture in the impurities and the water brought by the backwash pass through the filter screen 14, and the solid part remains in the screw pressing zone 7, and passes through the filter screen 14. The squeezing of the squeezing screw 13 further dehydrates. The liquid part and the squeezed water enter under the filter screen and are discharged through the drain pipe 16 . The dehydrated solid impurities are squeezed and dehydrated by the squeezing screw 13 , and finally discharged from the slag outlet 15 .

One part of the fine drum grid with the function of pressing the screen slag is a fine drum grid, which is external in and out to remove solid impurities in sewage, and the other part is a screen slag screw press, which is used for pressing and dehydrating solid impurities. While collecting and filtering sewage, the screen slag is dehydrated and pressed. The integrated device saves land occupation and integrates the functions of decontamination, transportation and pressing. It has a compact structure and high work efficiency.

The above description is only the preferred embodiment of the present invention, but the present invention should not be limited to the content disclosed in the embodiment and the accompanying drawings, so any equivalents or modifications accomplished without departing from the spirit disclosed in the present invention are all fall within the protection scope of the present invention.

Claims (6)

1. A rotary drum fine grille with grid slag squeezing function, comprising an outer casing, a rotary drum grid is installed in the outer casing, and a water inlet is provided on the outer casing facing the side of the rotary drum grid, and the rotary drum One end of the central axis of the drum in the grille penetrates through the outer casing and is connected to the drive motor installed on the outside of the outer casing. It is characterized in that a scraper is installed obliquely on the lower right outer side of the drum grille, and a pressing screw is arranged at the bottom of the scraper. , one end of the pressing screw is connected with the driving device, the bottom of the pressing screw is provided with a filter screen, the bottom of the filter screen is provided with a drainage pipe, the bottom of the pressing screw is provided with a slag outlet, and the bottom left of the drum grille is provided with a slag outlet. The outer casing is provided with a water outlet. 2. The fine rotary drum grid with grid slag squeezing function according to claim 1, characterized in that: a backwash nozzle is installed in the rotary drum grid directly opposite to the scraper, and one end of the backwash nozzle is connected with the scraper. Backflush the inlet pipe connection. 3. The rotary drum fine grid with grid slag pressing function according to claim 1, characterized in that: the outer casing is divided into a water inlet area, a water outlet area and a screw pressing area by a partition plate, wherein the water inlet is connected to the rotating area. The water inlet area is formed by the partition at the opposite side of the drum grille. The bottom of the drum grille is separated into the water outlet area by the partition plate. The water outlet is connected with the water outlet area. 4. The fine rotary drum grid with the function of slag pressing as claimed in claim 1, wherein the driving device comprises a driving motor and a reducer, the output shaft of the driving motor is connected with the input shaft of the reducer, and the speed is reduced. The output shaft of the compressor is connected with the end shaft of the pressing screw. 5. The rotary drum fine grid with the function of slag pressing according to claim 1, wherein the filter screen adopts a semi-circular arc design and is installed at the bottom of the pressing screw along the lateral direction of the pressing screw. 6 . The fine rotary drum grid with the function of slag pressing according to claim 1 , wherein the top of the outer casing is provided with an overflow port. 7 .

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