CN105854386B - A kind of sewage-treatment plant - Google Patents

Abstract

The invention relates to a sewage treatment device, comprising a filter pool, one side of the filter pool is provided with a water inlet tank, the other side of the filter tank is provided with a water outlet tank, and the filter tank is provided with a horizontal drum-shaped filter driven by a driving mechanism. device, the water purification output end of the drum-shaped filter device is connected with the water outlet tank, and the drum-shaped filter device is also provided with a scraping mechanism for scraping and removing the stains adsorbed on it, and the filter pool is also provided with There is a suction mechanism for draining the sludge from the bottom of the filter tank. The sewage treatment device has a compact structure and high sewage treatment efficiency.

Description

A sewage treatment device

technical field

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

Background technique

In papermaking and other industries, the process of papermaking is accompanied by the generation of sewage, and the discharge of sewage without treatment will seriously pollute the environment and water quality resources. The existing sewage treatment mechanism not only has a structure, but also has high production cost and low efficiency. At the same time, in the process of sewage treatment, stains often block the filter screen, etc., and the filter screen needs to be replaced frequently. The sludge is cleaned, which seriously affects the filtration efficiency.

Contents of the invention

The object of the present invention is to provide a sewage treatment device, which has a compact structure and high sewage treatment efficiency.

The technical solution of the present invention is: a sewage treatment device, including a filter tank, a water inlet tank is provided on one side of the filter tank, a water outlet tank is provided on the other side of the filter tank, and a horizontal horizontal tank driven by a driving mechanism is arranged in the filter tank. Type drum-shaped filter device, the water purification output end of the drum-shaped filter device is connected with the water outlet tank, and the drum-shaped filter device is also provided with a scraping mechanism for scraping and removing the stains adsorbed on it. A suction mechanism for discharging the sludge at the bottom of the filter tank is also arranged in the filter tank.

The drum-shaped filter device includes a central tube with one end connected to the input end of the water outlet and the other end closed. The central tube is provided with several filter screens at intervals along its axial direction. The combination of the central tube and the filter screen Clean water inlets penetrating into the central pipe are arranged at intervals along the circumference of the upper part.

The filter screen plate includes a filter screen frame, and the two sides of the filter screen frame are respectively covered with a layer of filter flannelette for filtering sewage and absorbing stains thereon.

The driving mechanism includes a gear plate arranged at one end of the central tube, and the gear plate is driven by a motor arranged on the upper side of the filter tank through a transmission chain.

The scraping mechanism includes scrapers arranged on both sides of the filter screen plate, and the scraper is provided with a water absorption groove along its length direction, and the water absorption groove is connected with a sewage suction pipe connected to the scraper. The sewage suction pipe is connected with the sewage discharge pipe protruding from the filter pool through the suction pump arranged on the upper part of the filter pool.

The position on the upper side of the water absorption groove on the scraper is in the shape of a trapezoid with a small top and a large bottom, and the part on the scraper on the lower side of the water absorption groove is a trapezoid with a large top and a small bottom. The outside of the scraper is connected with a Cover to which the suction pipe is attached.

The scrapers located on both sides of the filter plate are dislocated up and down, and the dislocation distance is 20-100mm, and the distance between the part on the upper side of the water-absorbing groove and the part on the lower side of the water-absorbing groove on the said scraper is 5-30mm, and Adjustable spacing.

The suction mechanism includes a sludge suction pipe extending into the bottom of the filter tank, and the sludge suction pipe is connected with a sewage pipe extending out of the filter tank through a sludge pump arranged on the upper part of the filter tank.

The water inlet tank is arranged on the upper part of one side of the filter tank, and the side wall of the water inlet tank is provided with a water inlet that penetrates into the filter tank. The first tank body is composed of an overflow tank connected to the side of the first tank body, and the water inlet end of the overflow tank body is lower than the water inlet.

The filter fleece is plush fiber or superfine fiber.

Compared with the prior art, the present invention has the following advantages:

1. The structure of the sewage treatment device is compact, and the sewage can be discharged directly after treatment, and at the same time, the sludge deposited at the bottom of the filter tank can be discharged together;

2. The filter screen plate of the sewage treatment device has a large filtration area and high sewage treatment efficiency, and the filter screen plate can be reused, which effectively saves filter materials, reduces production costs, and reduces environmental pollution.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of drum filter device of the present invention;

Fig. 3 is the second structural representation of the drum filter device of the present invention;

Fig. 4 is a schematic structural view of the scraping mechanism and the suction mechanism of the present invention;

Fig. 5 is a schematic diagram of the cooperative state of the scraper and the filter plate of the present invention;

Fig. 6 is a schematic structural view of the scraper of the present invention.

detailed description

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings, but the present invention is not limited thereto.

Refer to Figure 1 to Figure 6

A sewage treatment device, comprising a filter tank 10, a water inlet tank 20 is arranged on the upper part of the outer wall of one side of the filter tank, and a water inlet 21 penetrating into the filter tank is arranged on the side wall of the water inlet tank, and the outer wall of the other side of the filter tank is A water outlet tank 30 is provided, and the filter tank is provided with a horizontal drum-shaped filter device 40 driven by a driving mechanism to rotate for filtering sewage to make stains adsorb on it. The water purification output end of the drum-shaped filter device and the water outlet tank Connected to output the purified water obtained after filtration. The drum-shaped filter device is also provided with a scraping mechanism 50 for scraping and removing the stains adsorbed on it, so that the drum-shaped filter device can be reused. The filter tank is also provided with a suction mechanism for discharging the sludge at the bottom of the filter tank, thereby preventing sludge from accumulating at the bottom of the filter tank, reducing the cost of manual sludge removal, and ensuring continuous operation of the sewage treatment device.

The above-mentioned water outlet tank is composed of a first tank body 31 arranged on the other side of the filter tank and the input end is arranged on the side wall of the middle part of the filter tank, and an overflow tank 32 connected to the side of the first tank body. The water inlet end 33 of the overflow tank is It is lower than the water inlet, so that the water in the filter pool continues to flow out, forming a siphon principle.

The above-mentioned drum-shaped filter device includes a fixed frame 41 arranged in the filter tank, and the fixed frame is provided with a central tube 42 with one end rotatably connected to the input end of the first tank body and the other end closed, and the cross section of the central tube is hexagonal. The other end of the central tube is connected to the fixed frame through the bearing seat, and the central tube is provided with several filter screens 43 at intervals along its axial direction, thereby increasing the filtering area and enhancing the filtering efficiency. The filter screen plate includes a plurality of filter screen frames 44 connected to the periphery of the central tube, and the two sides of the filter screen frame are respectively covered with a filter flannelette 45 for filtering sewage to adsorb stains thereon. The joint portion of the filter screen frame is provided with clean water inlets 46 penetrating into the central pipe at intervals along the circumference, so that the sewage enters the clean water inlet and enters the central pipe after being filtered by the filter flannelette.

The above-mentioned filter fleece is plush fiber or superfine fiber, so that the dirt can be fully filtered.

The above-mentioned scraping mechanism includes scrapers 51 arranged on both sides of the filter screen and tightly attached to the filter flannel. The two scrapers are set up and down in a dislocation, and the dislocation distance is 20-100mm, so as to better scrape off the stains. A water absorption groove 52 is arranged on the scraper along its length direction, so that the scraped dirt is sucked away by the water absorption groove. The water suction tank communicates with the sewage suction pipe 53 connected to the scraper, and the sewage suction pipe is connected with the sewage suction main pipe 55 through the suction pump 54 fixed on the fixed frame. The upper part of the filter tank is connected with the sewage discharge pipe 56 protruding from the filter tank, and a valve body 57 is arranged on the sewage discharge pipe.

As shown in Figure 6, the part on the upper side of the water absorption groove on the above-mentioned scraper is in the shape of a trapezoid with a small top and a large bottom, and the slope of this part is matched with the flannelette. It is in the shape of a trapezoid with a large top and a small bottom, and the inclined surface of this part cooperates with the flannelette so that the flannelette is squeezed during the rotation of the flannelette and the sludge on the flannelette is peeled off, so as to achieve the effect of scraping dirt. The outer side of the scraper is connected with a cover 511 connected with the sewage suction pipe. The inclined angle 512 of the slope is 10-20°.

The distance between the upper side of the water absorption groove and the lower side of the water absorption groove on the scraper is 5-30mm, and the distance is adjustable, so as to adjust the size of the water absorption groove according to the dirtiness of the flannelette.

The above-mentioned driving mechanism includes a gear plate 71 arranged at one end of the central tube, and the said gear plate is driven by a motor 73 arranged on the upper side of the filter tank through a transmission chain 72, so as to drive the rotation of the drum-shaped filter device to realize the repeated scraping of the filter by the scraper. The surface of the board, so that the stains adhered to it are scraped off and the stains are sucked away by the suction groove.

The above-mentioned suction mechanism includes a sludge suction pipe 61 extending into the bottom of the filter tank, and the sludge suction pipe is connected to the sewage pipe 57 protruding from the filter tank through the sludge pump 62 arranged on the upper part of the filter tank, so as to discharge the sludge for filtration. outside the pool.

How to use the sewage treatment plant:

The sewage is sent into the filter tank from the water inlet tank. Since the water inlet end of the overflow tank on the water outlet tank is lower than the water inlet, a siphon principle is generated during the continuous flow of the water flow, and the sewage is continuously filtered from the filter plate and output from the water outlet tank. ;Start the driving mechanism to rotate the drum-shaped filter device, and turn on the suction pump at the same time. When the drum-shaped filter device is rotating, the scraper of the scraping mechanism will scrape off the stains adhered to the filter flannelette, and suck it through the washing tank. And the filter tank is discharged from the sewage pipe; after the filter tank has been working for a period of time, the sludge pump is turned on, and the sludge at the bottom of the filter tank is discharged from the filter tank through the sludge suction pipe and the sewage pipe, and this is repeated, so that the filter tank can work continuously There is no need to stop the machine to clean up the deposited sludge.

It is worth mentioning that, in an embodiment of the present invention, the above-mentioned working period includes the first working time and the second working time, or a combination of several time periods T; during the first working time, the drum filter It can be forward rotation. During the second working time, the drum-shaped filter device can be reversed; if there are several time periods T, it is in each time period T, alternately forward and reverse, through the forward rotation and reverse rotation It can effectively remove the stains on the filter fleece, and it can also effectively prolong the service life of the filter fleece.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (1)

1. a kind of sewage-treatment plant, including a filtering ponds, it is characterised in that the filtering ponds side is provided with intake chamber, mistake It is provided with filter tank defeated by the horizontal drum shape filter of drive mechanism driving rotation, the water purification of the cylinder shape filter Go out end with effluent trough to be connected, be additionally provided with cylinder shape filter and strike off and exclude for spot attached to it will to be inhaled Scraping dirt mechanism, it is additionally provided with the filtering ponds for by the aspirating mechanism of the sludge discharge of filtering ponds bottom；The cylinder shape Filter includes one end and effluent trough input and is rotatablely connected and the central tube of other end closing, and the central tube is along its axial direction If being arranged at intervals with dry plate screen pack, the joint portion of the central tube and screen pack is circumferentially spaced to be provided with the center of penetrating The water purification entrance of pipe；The screen pack includes filtering screen frame, and the both sides of the filtering screen frame are respectively covered with one layer of filtering Sewage makes spot inhale filtering flannelette attached to it；The drive mechanism includes being arranged at the toothed disc of central tube one end, institute Toothed disc is stated to be driven by being arranged at the motor on the upside of filtering ponds through driving-chain；The scraping dirt mechanism includes being arranged on screen pack two The scraper plate of side, pick trough, the pick trough and the dirt sucking tube being connected on scraper plate are provided with the scraper plate along its length It is connected, the configured suction pump in filtering ponds top of the dirt sucking tube is connected with stretching out the blow-off pipe of filtering ponds；It is described to scrape Position on plate on the upside of pick trough is in up-small and down-big trapezoidal shape, and the position being located on the scraper plate on the downside of pick trough is presented Small trapezoidal shape under big, and the inclined-plane at the position is engaged with flannelette, the inclined angle in inclined-plane is 10 ~ 20 °；The scraper plate Outside be connected with the capping being connected with dirt sucking tube；Scraper plate positioned at screen pack both sides shifts to install up and down, dislocation distance For 20 ~ 100mm, spacing between the position on the scraper plate on the upside of pick trough and the position on the downside of pick trough for 5 ~ 30mm, and spacing is adjustable；The aspirating mechanism includes stretching into the sludge suction pipe of filtering ponds bottom, the sludge suction pipe it is configured in The sludge pump on filtering ponds top is connected with stretching out the blow-off pipe of filtering ponds；The intake chamber includes being arranged on filtering ponds side Portion, water inlet groove sidewall are provided with the water inlet for penetrating filtering ponds, and the effluent trough is by being arranged at filtering ponds opposite side and input The first cell body for being arranged at filtering ponds middle part of sliding channel and the overflow groove composition for being connected to the first cell body sidepiece, the overflow groove water inlet End is less than water inlet；The filtering flannelette is fine animal fibre or superfine fibre；

The application method of the sewage-treatment plant：

Sewage is sent into filtering ponds by intake chamber, because overflow groove water inlet end is less than water inlet on effluent trough, continued in current The process of flowing produces siphon principle, and sewage then continually filters from screen pack, and is exported by effluent trough；Start driving Mechanism rotates cylinder shape filter, while opens suction pump, cylinder shape filter when rotating, scraping dirt mechanism The spot that scraper plate will be adhered on filtering flannelette scrapes, and is sucked by pick trough, and discharges filtering ponds by blow-off pipe；Treat After filtering ponds work a period of time, sludge pump is opened, the sludge of filtering ponds bottom was discharged by sludge suction pipe and blow-off pipe Filter tank, and being repeated with this so that sludge of the available continuous work of filtering ponds without shutting down cleaning deposition, during one section of the work Between include the first working time and the second working time, or some time T combination；It is described during first working time Cylinder shape filter can rotate forward, and during the second working time, the cylinder shape filter can invert；If some time Section T, then it is the alternating forward and backward in each period T.