CN2600425Y - Desand, pollution cleaning filtering equipment for sewage treatment - Google Patents

Abstract

The utility model discloses a sand and dirt removing device which adopts a cartridge filter to remove the find sands and suspending dirt in sewage, including a cartridge filter, a rotation shaft of the cartridge filter, a transmission electric motor, a water inlet pipe, a water outlet pipe, a spillover pipe, a scraper and a casing, which is characterized in that the cartridge filter is arranged in the middle of the casing which is provided with a inlet water buffer chamber and a water distribution chamber; the water inlet pipe connects to the inlet water buffer chamber, which is arranged on the lower side of the casing; the water distribution chamber is positioned on the upper side of the inlet water buffer chamber; a current stabling plate with a hole or a seam is arranged between the inlet water buffer chamber and the water distribution chamber as an isolator; the spillover tube is arranged on the upper part of the casing, and the water outlet pipe is positioned on the lower part; the scraper is fixed on the casing. The device has a high efficiency in removing fine sands and suspending dirt in sewage, in the mean time, the water content in the fine sands and suspending dirt left over is low, which facilitates the direct treatment of those solids without separating solids from liquid. The width of the filter seam can be determined in accordance with the sizes of the fine sands and suspending dirt to be removed.

Description

A kind of sewage disposal is with filtering desanding, trash-removal device

The utility model relates to a kind of tiny sand grains in the sewage and filter plant of tiny suspension dirt removed.

In sewage treatment process; avoid wearing and tearing and obstruction for protecting water pump and miscellaneous equipment and pipeline; prevent that simultaneously the grains of sand and suspension dirt from depositing in pipeline, must carry out desanding, abatement processes, to remove tiny sand grains and the tiny suspension dirt in the sewage sewage.

Present desanding, scrubbing technology mainly are settling pit and settling tank, the principle of these technologies all is to utilize the proportion of sand grains and other formative substance to rely on gravitational settling in the sand hopper and bucket of settling pit or settling tank greater than water, with sand water sepn or mud and water separating equipment the material in sand hopper or the bucket is carried out solid-liquid separation again, thereby play desanding, scrubbing purpose.Because above-mentioned technology all relies on sand grains and the gravity settling process of other formative substance in water to reach the removal purpose, and the height of clearance is subjected to the influence of hydraulics in settling pit or the settling tank and flow rate of water flow bigger.Generally speaking, because it is bigger to enter the discharge of sewage fluctuation of sewage work, cause settling pit or settling tank amount of inlet water also often to change, thereby hydraulics and flow rate of water flow in settling pit or the settling tank are also often changed, so it is relatively stable to adopt hydraulics in the treatment facility of above-mentioned technology and flow rate of water flow all can not guarantee, so removal effect is also unstable; General gravity settling is better to the bigger sand grains removal effect of particle, and relatively poor to the removal effect of less sand grains of particle or fine suspension matter; Because the sand grains and other material that are deposited in sand hopper or the bucket do not separate fully with water, so also must adopt special solid-liquid separating equipment to separate, operation and management are complicated simultaneously.

The purpose of this utility model provides a kind of filtration trash-removal device that can effectively remove sand grains and fine suspension in the sewage.

The utility model desanding, trash-removal device are designs like this: this desanding, trash-removal device are formed by having the cartridge filter, cartridge filter transmission shaft, driving motor, water inlet pipe, rising pipe, upflow tube, scraper and the housing that filter the slit, its principal character is, cartridge filter is positioned at the middle part of device housings, have equally distributed filtration slit on the cylindrical shell, the cartridge filter transmission shaft is positioned at the central authorities of cartridge filter; Be provided with into water surge chamber, cloth hydroecium in the housing; Water inlet pipe communicates with the water inlet surge chamber, be positioned at the side lower part of housing, the cloth hydroecium is positioned at into water surge chamber upper lateral part, with a stabilier that has hole or bar seam they is separated out between water inlet surge chamber and cloth hydroecium, upflow tube is positioned at the top of housing, and rising pipe is positioned at lower housing portion; Scraper is fixedly mounted on the housing, and is arranged on cartridge filter one side, and is close on the cartridge filter; Driving motor is positioned at a side of cartridge filter transmission shaft and is connected with the cartridge filter transmission shaft.

The utility model is owing to adopt the mechanical filter mode, have tiny sand grains and the high characteristics of tiny suspension dirt efficient in the sewage of removal, it is low to be retained down solid state material water ratio such as tiny sand grains and tiny suspension dirt simultaneously, do not need to carry out again solid-liquid separation and just can directly transport outward disposal, filter wavelength width of a slit and can determine according to the size of tiny sand grains in the sewage of intending to remove and tiny suspension dirt.Simple to operation.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the front view that filters desanding, trash-removal device;

Fig. 2 is the A-A section of Fig. 1;

Among the figure, the 1st, sewage water inlet pipe; The 2nd, advance the water surge chamber; 3 stabiliers; The 4th, the cloth hydroecium; The 5th, rectangular water distribution board; The 6th, the overflow flow deflector; The 7th, overflow hydroecium; The 8th, upflow tube; The 9th, housing; The 10th, cartridge filter; The 11st, the cartridge filter transmission shaft; 12 scrapers; The 13rd, the water outlet catchment area; The 14th, rising pipe; The 15th, the device support leg; The 16th, driving motor.

During equipment work, sewage enters into water surge chamber 2 by water pump lifting or by water head tank from water inlet pipe 1, evenly flow into cloth hydroecium 4 by the stabilier 3 that has hole or bar seam then, and rely on and to be close to the rectangular water distribution board 5 that has cartridge filter 10 outer walls that filter the slit and sewage evenly and continuously to be distributed on the upper outside face of cartridge filter 10, the size that plan will be removed is blocked in cartridge filter 10 outsides greater than the tiny sand grains and the suspension dirt that filter the slit, and filtered sewage enters the filter cylinder inboard with regard to seeing through the filtration slit on the filter cylinder, and under action of gravity, pass lower part filter cylinder and enter water outlet catchment area 13, flow out by rising pipe 14 then; The tiny sand grains and the suspension dirt that are blocked in the filter cylinder outside are with from liquid level along with the rotation of the cartridge filter under driving motor 16 drives, and by attached under the surface tension effects of moisture film on the cartridge exine attached to the cartridge filter outer wall, and under the rotation of cartridge filter and go to rectangular fixed doctor 12 places that are close to cartridge filter 10 outer walls, by scraper 12 tiny sand grains and suspension dirt are scraped, thereby play the effect of removing tiny sand grains and suspension dirt in the sewage.

Filtration slit quantity on the cartridge filter and wavelength width of a slit determine according to nominal water flow, flow velocity and filtering accuracy, and simultaneously, the cartridge filter that contacts with sewage between liquid level and the rectangular water distribution board 5 in the cloth hydroecium 4 partly is an effective filtration area.When specified water flow, liquid level in the cloth hydroecium 4 is basicly stable in certain position, and when flooding velocity surpasses rated flow, the resistance that effluent stream is crossed effective filtration area increases, cause the liquid level in the cloth hydroecium 4 to raise, thereby increase the filtration area of cartridge filter, to guarantee that filtration is effectively carried out; Along with the continuous increase of flooding velocity, liquid level in the cloth hydroecium 4 can constantly raise, and when liquid level was increased to overflow flow deflector 6 places, part of contaminated water will be overflow overflow flow deflector 6 and be entered and overflow hydroecium 7, and was discharged by upflow tube 8; The top absolute altitude of overflow flow deflector 6 is less than the upper top absolute altitude of cartridge filter 10, and its discrepancy in elevation determines by calculating, with guarantee sewage can not overflow cartridge filter 10 upper top and flood whole filter cylinder.

Whole filtration desanding, trash-removal device are by device support leg 15 support fixation that are positioned at the equipment foot; Cartridge filter 10 is supported by the cartridge filter supporting shaft 11 that is positioned at the cartridge filter center, and by driving motor 16 driven rotary that link to each other with the cartridge filter supporting shaft.

Claims (6)

1, a kind of sewage disposal is with filtering desanding, trash-removal device, it is made up of water inlet pipe (1), upflow tube (8), housing (9), cartridge filter (10), cartridge filter transmission shaft (11), scraper (12), rising pipe (14), driving motor (16), it is characterized in that: cartridge filter (10) is positioned at the middle part of housing (9), have equally distributed filtration slit on the cylindrical shell, cartridge filter transmission shaft (11) is positioned at the central authorities of cartridge filter (10); Be provided with into water surge chamber (2) and cloth hydroecium (4) in the housing (9), cloth hydroecium (4) is positioned at the into top of water surge chamber (2), separates with the stabilier (3) that has hole or bar seam between cloth hydroecium (4) and the water inlet surge chamber (2); Water inlet pipe (1) communicates with water inlet surge chamber (2), is positioned at the side lower part of housing (9), and upflow tube (8) is positioned at the upper lateral part of housing, and rising pipe (14) is positioned at the bottom of housing (9); Scraper (12) is fixedly mounted on the housing (9), and is close to cartridge filter (10); Driving motor (16) is positioned at a side of cartridge filter transmission shaft (11), and is connected with transmission shaft; Housing (9) is by the supporting leg under it (15) support fixation.

2, filtration desanding according to claim 1, trash-removal device, it is characterized in that: cartridge filter (10) is for columnar structured, it is the filtration slit in the center of circle with the cylinder section center that its cylindrical surface has some, filtering the width in slit determines according to required filtering precision, its width is less than the size of the tiny sand grains that will remove in the sewage and suspension dirt, cartridge filter (10) supports by the cartridge filter transmission shaft (11) that is positioned at its center and is fixing, supporting shaft (11) links to each other with the driving motor (16) of one side, and cartridge filter (10) rotates under the driving of driving motor (16) during the equipment operation.

3, filtration desanding according to claim 1, trash-removal device is characterized in that: have plurality of holes or bar seam on the stabilier (3), play the effect of water inlet being carried out energy dissipating and water distribution uniformity.

4, filtration desanding according to claim 1, trash-removal device, it is characterized in that: rectangular water distribution board (5) is close to cartridge filter (10) outer wall, guarantee that tiny sand grains and suspension dirt can not enter the space between cloth hydroecium (4) left plate and the cartridge filter (10), rectangular water distribution board (5) links to each other with cloth hydroecium (4) left plate and is certain angle simultaneously, plays guide functions.

5, filtration desanding according to claim 1, trash-removal device is characterized in that: be provided with one and overflow hydroecium (7) in housing (9), and communicate with upflow tube (8); Overflow flow deflector (6) links to each other with the left plate that overflows hydroecium (7), both at an angle, play guide functions, simultaneously the top absolute altitude of overflow flow deflector (6) is lower than the upper top absolute altitude of cartridge filter (10), guarantee sewage can not overflow cartridge filter (10) upper top and flood whole filter cylinder.

6, filtration desanding according to claim 1, trash-removal device, it is characterized in that: scraper (12) is positioned at cartridge filter (10) one sides, and be close to cartridge filter (10) outside, guarantee that when works better forwarding rectangular fixed doctor (12) to attached to the tiny sand grains of cartridge filter (10) outer wall and suspension dirt is scraped when locating.

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