CN212632034U - Excrement sewage second grade solid-liquid separation equipment - Google Patents

Abstract

The utility model discloses an excrement sewage second grade solid-liquid separation equipment, including one-level inclined screen separator, form at the second grade filter screen separator of one-level inclined screen separator below and form the screw extrusion hydroextractor in second grade filter screen separator one side, one-level inclined screen separator is used for solid-liquid separation coarse grain and one-level parting solution, second grade filter screen separator is used for solid-liquid separation fine grain and second grade parting solution, screw extrusion hydroextractor is used for the dehydration of coarse grain and fine grain to handle. Implement the utility model discloses, through the primary treatment with excrement sewage through one-level inclined screen separator, separate coarse grain and one-level parting liquid, pass through the secondary treatment of second grade filter screen separator again, separate out fine grain and second grade parting liquid, coarse grain and fine grain pass through the dehydration of spiral extrusion dewatering mechanism again, and the solid clearance is higher, effectively reduces the COD value.

Description

Excrement sewage second grade solid-liquid separation equipment

Technical Field

The utility model relates to a solid-liquid separation technical field, more specifically relate to an excrement sewage second grade solid-liquid separation equipment.

Background

The main excrement sewage solid-liquid separation equipment in the prior art is in a spiral extrusion type, and the screen gap of the spiral extrusion type equipment can be as low as below 0.45mm, so that the slag is relatively fine. Meanwhile, in order to increase the treatment capacity, some manufacturers use the inclined screen solid-liquid separation equipment in a matched manner, excrement sewage flows through the inclined screen solid-liquid separation equipment firstly, separation is achieved preliminarily, and then the excrement sewage flows into the spiral extrusion equipment, however, although the inclined screen and spiral extrusion type solid-liquid separator in the prior art has relatively good effects on yield and slag discharge level, the inclined screen and spiral extrusion type solid-liquid separator is limited to a solid-liquid separation process, the COD value cannot be reduced well, the removal rate of solid suspended matters is low (about 50%), finer particles cannot be filtered (the diameter of the particles cannot be smaller than 0.35mm theoretically by the solid-liquid separation equipment in the prior art), and the filtering effect cannot meet the market demand.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a thick and fine particle grading separation and solid removal rate are higher, effectively reduce the excrement sewage second grade solid-liquid separation equipment of COD value.

The utility model discloses the technological effect that will reach is realized through following scheme: the utility model provides an excrement sewage second grade solid-liquid separation equipment, includes one-level inclined screen separator, forms at the second grade filter screen separator of one-level inclined screen separator below and forms the screw extrusion hydroextractor in second grade filter screen separator one side, one-level inclined screen separator is used for solid-liquid separation to go out coarse grain and one-level parting solution, second grade filter screen separator is used for solid-liquid separation to go out fine grain and second grade parting solution, screw extrusion hydroextractor is used for the dehydration of coarse grain and fine grain.

Preferably, one-level inclined screen separator includes one-level separation casing, inclined screen mechanism, back flush mechanism, feed liquor mechanism and drainage mechanism, wherein inclined screen mechanism slope sets up in one-level separation casing, back flush mechanism sets up in one-level separation casing and corresponds inclined screen mechanism's downside setting.

Preferably, the liquid discharge mechanism comprises a first partition plate and a second partition plate, and one end of the first partition plate is connected with the lower end of the inclined screen mechanism and is used for separating the separated coarse particles from the primary separation liquid; the second partition plate is opposite to the first partition plate, one end of the second partition plate is connected with the primary separation shell, the other end of the second partition plate extends towards the first partition plate and is provided with an upward baffle plate to form an overflow structure, and the other end of the first partition plate and the other end of the second partition plate are provided with an overlapping area but are not connected in an overlapping mode.

Preferably, second grade filter screen separating centrifuge includes second grade separation casing, second grade filter screen mechanism and washes net mechanism, and wherein second grade filter screen mechanism includes filter screen actuating mechanism, fixes the running roller in the casing and the filter screen body of being connected with the running roller transmission, filter screen body is towards the one side motion of screw extrusion dewatering mechanism under the drive of running roller.

Preferably, the filter screen body is a woven screen, and the mesh number of the woven screen is 60-100 meshes.

Preferably, the solid particle scraper further comprises a scraper plate pressing mechanism, wherein the scraper plate pressing mechanism is formed between the filter screen body and the spiral extrusion dehydration mechanism and is used for scraping solid particles on the filter screen body into the spiral extrusion dehydration mechanism.

Preferably, the scraper plate pressing mechanism comprises a scraper plate assembly, a pressing spring assembly and a rotating assembly, wherein the scraper plate assembly comprises a scraper plate main body, a rotating shaft and a nylon scraper plate, the scraper plate main body is fixedly connected with the nylon scraper plate, and the nylon scraper plate is tightly attached to the filter screen body; the compression spring assembly comprises a spring body, a bolt, a nut and a spring seat; the rotating assembly comprises a rotating ring, and the rotating shaft is installed on the rotating ring.

Preferably, the roller type filter screen guide device further comprises a filter screen guide mechanism, wherein the filter screen guide mechanism is formed on two sides of the filter screen body and used for preventing the filter screen body from deviating on the roller; the filter screen guide mechanism comprises a U-shaped support, a pin shaft and a V-shaped groove pulley, the V-shaped groove pulley is fixedly installed in the U-shaped support through the pin shaft, the U-shaped support is fixedly connected with the second-stage separation shell, and the outer side of the filter screen body is movably clamped in a V-shaped groove of the V-shaped groove pulley.

The utility model has the advantages of it is following:

1. the excrement sewage is subjected to primary treatment by a primary inclined screen separator to separate coarse particles and primary separation liquid, and is subjected to secondary treatment by a secondary filter screen separator to separate fine particles and secondary separation liquid, and the coarse particles and the fine particles are dehydrated by a spiral extrusion dehydration mechanism, so that the solid removal rate is higher, and the COD value is effectively reduced;

2. solid particles on the filter screen body are scraped into the spiral extrusion dehydration mechanism by arranging the scraper plate pressing mechanism, so that the scraper cleaning function of the filter screen body is realized, and the surface of the filter screen body is not blocked;

3. the filter screen guide mechanism is arranged and formed on two sides of the filter screen body to prevent the filter screen body from deviating on the roller.

Drawings

FIG. 1 is a perspective view of a second-stage solid-liquid separation device for fecal sewage according to the present invention;

FIG. 2 is a schematic view of a top view structure of a second-stage solid-liquid separation device for fecal sewage according to the present invention;

FIG. 3 is a schematic view of a three-dimensional structure of a two-stage solid-liquid separation device for fecal sewage according to the present invention;

FIG. 4 is a schematic view of a three-dimensional structure of a scraper component in the second-stage solid-liquid separation equipment for fecal sewage of the present invention;

fig. 5 is the utility model discloses a planar structure schematic diagram of mechanism is led to filter screen among excrement sewage second grade solid-liquid separation equipment.

Detailed Description

The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

Combine figure 1 and fig. 2 to show, the embodiment of the utility model provides a fecal sewage second grade solid-liquid separation equipment provides a fecal sewage treatment of mainly used plant, compares with traditional solid-liquid separation machine, the utility model discloses a fecal sewage second grade solid-liquid separation equipment can realize thick, fine particle difference solid-liquid separation, and the solid clearance is higher, effectively reduces the COD value. Excrement sewage second grade solid-liquid separation equipment includes one-level inclined screen separator 100, forms at the second grade screen separator 200 of one-level inclined screen separator 100 below and forms at the screw extrusion hydroextractor 300 of second grade screen separator 200 one side, one-level inclined screen separator 100 is used for solid-liquid separation coarse grain and one-level parting fluid, second grade screen separator 200 is used for solid-liquid separation fine grain and second grade parting fluid, and excrement sewage stoste separates out after coarse grain and one-level parting fluid through one-level inclined screen separator 100 earlier, and the one-level parting fluid further separates out fine grain and second grade parting fluid through second grade screen separator 200, and coarse grain and fine grain all get into screw extrusion hydroextractor 300 and dewater, and the liquid discharge in second grade parting fluid and the screw extrusion hydroextractor 300.

Specifically, one-level inclined screen separator 100 includes one-level separation casing 110, oblique screen cloth mechanism 120, back flush mechanism 130, feed liquor mechanism 140 and drainage mechanism 150, wherein screen cloth mechanism 120 slope sets up in one-level separation casing 110 to one side, back flush mechanism 130 also sets up in one-level separation casing 110 and corresponds the downside setting of oblique screen cloth mechanism 120 for carry out the back flush to screen cloth mechanism 120 to one side, prevent that the excrement sewage blocks up and establishes and lead to separating unsmooth in oblique screen cloth mechanism 120. The liquid inlet mechanism 140 is formed at the upper part of the inclined screen mechanism 120 and overflows the fecal sewage to the upper side of the inclined screen mechanism 120 in an overflow manner, and the liquid outlet mechanism 150 is formed below the inclined screen mechanism 120 and overflows the primary separated liquid to the secondary screen separator 200. Preferably, the drainage mechanism 150 includes a first partition 151 and a second partition 152, and one end of the first partition 151 is connected to the lower end of the inclined screen mechanism 120 and is used for separating the separated coarse particles from the primary separated liquid. The second partition plate 152 is opposite to the first partition plate 151, one end of the second partition plate 152 is connected to the primary separation casing 110, the other end of the second partition plate 152 extends toward the first partition plate 151 and has an upward baffle plate to form an overflow structure, the other end of the first partition plate 151 and the other end of the second partition plate 152 have an overlapping region, but are not overlapped and connected to form a structure that the first partition plate 151 is located above the second partition plate 152, so that the primary separation liquid can smoothly overflow to the secondary screen separator 200.

Further, the inclined screen mechanism 120 is preferably inclined at an angle of 45-60 °, and the inclined screen mechanism 120 arranged in an inclined manner within the angle range can achieve better solid-liquid separation effect. It should be understood by those skilled in the art that the specific structure of the inclined screen mechanism 120 and the back washing mechanism 130 of the present invention can adopt the conventional structure in the prior art, and the present invention is not described in detail or specifically limited.

Second grade filter screen separating centrifuge 200 includes second grade separation casing 210, second grade filter screen mechanism 220 and wash net mechanism 230, and wherein second grade filter screen mechanism 220 includes filter screen actuating mechanism 221, fixes the interior running roller 222 of casing and the filter screen body 223 of being connected with running roller 222 transmission, and wherein running roller 222 includes driving running roller 222 and driven running roller 222, driving running roller 222 is connected with filter screen actuating mechanism 221 transmission, filter screen body 223 is towards the one side motion that spiral extrusion dewaterer 300 constructed under running roller 222's drive. Preferably, the number of the rollers 222 may be 3 or more, the rollers 222 are distributed in a triangular shape so that the strainer is in a tapered closed loop structure, the strainer body 223 shown in fig. 1 is driven by the strainer driving mechanism 221 to rotate counterclockwise, the primary separation liquid and the coarse particles respectively drop on the upper end surface of the strainer body 223, the primary separation liquid is filtered by the strainer body 223 to form a secondary filtration liquid and fine particles, the fine particles and the coarse particles are transported by the strainer body 223 to the screw extrusion dehydrator 300 to be dehydrated, and the secondary filtration liquid is discharged from the water discharge hole. The upper end surface of the screen body 223 is preferably inclined downward toward the screw extrusion dehydrator 300 at an angle of 2 to 3, so that coarse particles and fine particles can smoothly enter the screw extrusion dehydrator 300.

As a further improvement of the first embodiment of the present invention, the filter screen body 223 is a woven mesh, the mesh number of the woven mesh is 60-100 meshes, which is equivalent to the holes with a diameter of 0.29-0.16 mm, the slag separation effect is better, and the solid particles with a diameter less than 0.35mm can be effectively separated.

Combine shown in fig. 3 and fig. 4, as the utility model discloses a first further improvement, second grade filter screen separating centrifuge 200 is still including scraping flitch hold-down mechanism 240, it forms between filter screen body 223 and screw extrusion hydroextractor 300 to scrape flitch hold-down mechanism 240 for press close to with filter screen body 223, scrape into screw extrusion hydroextractor 300 with the solid particle on filter screen body 223 and construct in, realize filter screen body 223 scrape the material clearance function, make filter screen body 223 unblock on the surface. Specifically, the scraping plate pressing mechanism 240 includes a scraping plate assembly 241, a pressing spring assembly 242 and a rotating assembly 243, wherein the scraping plate assembly 241 includes a scraping plate main body 2411, a rotating shaft 2412 and a nylon scraping plate 2413, the scraping plate main body 2411 is fixedly connected with the nylon scraping plate 2413, and the nylon scraping plate 2413 is tightly attached to the filter screen body 223. The hold-down spring assembly 242 comprises a spring body, a bolt, a nut and a spring seat, and the hold-down spring assembly 242 is elastically connected with the scraper blade assembly 241 and used for elastically pre-tightening the scraper blade assembly 241, so that an elastic space is formed when large solid particles exist between the filter screen body 223 and the scraper blade assembly 241, and material blocking is prevented. The rotating assembly 243 includes a rotating ring, and the rotating shaft 2412 is mounted on the rotating ring to enable the scraper assembly 241 to have a rotating function and prevent material from being jammed. Due to the pretightening force of the compression spring component 242, the nylon scraping plate 2413 is tightly attached to the filter screen body 223, when solid particles filtered by the filter screen body 223 are conveyed to the nylon scraping plate 2413, the nylon scraping plate 2413 cleans the solid particles, and then the solid particles fall into the spiral extrusion dehydrator 300. It should be appreciated that the rotating ring and spring assembly are formed on both sides of the screen body 223 and the scraper assemblies 241 are disposed across the screen body 223.

As shown in fig. 5, as a further improvement of the first embodiment of the present invention, the second-stage filter screen separator 200 further includes a filter screen guiding mechanism 250, the filter screen guiding mechanism 250 is formed on two sides of the filter screen body 223 to prevent the filter screen body 223 from deviating on the roller 222. Mechanism 250 is led to filter screen includes U type support 251, round pin axle 252 and V type groove pulley 253, V type groove pulley 253 passes through round pin axle 252 fixed mounting in U type support 251, U type support 251 and second grade separation casing 210 fixed connection, the movably card in V type groove of V type groove pulley 253 is established in the outside of filter screen body 223, effectively prevents filter screen body 223 off tracking. It should be understood that the number of the screen guide mechanisms 250 may be 2 or more, and at least 2 are symmetrically disposed on two outer sides of the screen body 223, so as to form a two-side opposite-clamping structure for the screen body 223, thereby preventing the screen body 223 from deviating.

It should be understood by those skilled in the art that the screw extrusion dehydrator 300 of the first embodiment of the present invention may adopt a conventional structure in the prior art, and the present invention is not limited to or described in detail herein.

Example two

The embodiment two of the utility model provides embodiment one a separation method of excrement sewage second grade solid-liquid separation equipment, including following step:

step S1: after the excrement sewage flows into a liquid inlet mechanism 140 of the primary inclined screen separator 100, the excrement sewage overflows onto an inclined screen mechanism 120, and primary separation is carried out by the inclined screen mechanism 120 to form coarse particles and primary separation liquid;

step S2: the primary separated liquid overflows to the filter screen body 223 of the secondary filter screen separator 200 through the liquid discharge mechanism 150, meanwhile, coarse particles also fall to the filter screen body 223 of the secondary filter screen separator 200, the primary separated liquid is filtered by the filter screen body 223 to form secondary separated liquid and fine particles, the coarse particles and the fine particles are conveyed to the screw extrusion dehydrator 300 to be dehydrated under the driving of the filter screen body 223, and water separated by the secondary separated liquid and the screw extrusion dehydrator 300 is discharged from the water discharge hole.

Further, still include the step that solid particle on the filter screen body 223 scraped the material and make solid particle more smoothly get into screw extrusion hydroextractor 300 and construct, realize filter screen body 223's scraping material clearance function, make filter screen body 223 surface unblock.

Further, the method comprises the step of backwashing the inclined screen mechanism 120 and the secondary screen mechanism 220.

The embodiment of the utility model provides a two-way through with the fecal sewage through the primary treatment of one-level inclined screen separator 100, separate coarse grain and one-level parting solution, pass through the secondary treatment of second grade filter screen separator 200 again, separate out fine grain and second grade parting solution, coarse grain and fine grain pass through the dehydration that screw extrusion hydroextractor 300 constructs again, and the solid clearance is higher, effectively reduces the COD value.

Finally, it should be noted that the first embodiment is only used for illustrating the technical solution of the first embodiment of the present invention, but not for limiting the same, although the first embodiment of the present invention is described in detail with reference to the preferred embodiment, those skilled in the art should understand that the technical solution of the first embodiment of the present invention can be modified or replaced with equivalents, and the modified technical solution cannot be separated from the scope of the technical solution of the first embodiment of the present invention.

Claims (8)

1. The utility model provides an excrement sewage second grade solid-liquid separation equipment, its characterized in that includes one-level inclined screen separator, forms at the second grade filter screen separator of one-level inclined screen separator below and forms the screw extrusion hydroextractor in second grade filter screen separator one side, one-level inclined screen separator is used for solid-liquid separation coarse grain and one-level parting solution, second grade filter screen separator is used for solid-liquid separation fine grain and second grade parting solution, screw extrusion hydroextractor is used for the dehydration of coarse grain and fine grain to handle.

2. The secondary solid-liquid separation equipment for fecal sewage according to claim 1 wherein the primary inclined screen separator comprises a primary separation housing, an inclined screen mechanism, a back washing mechanism, a liquid inlet mechanism and a liquid discharge mechanism, wherein the inclined screen mechanism is obliquely arranged in the primary separation housing, and the back washing mechanism is arranged in the primary separation housing and corresponds to the lower side surface of the inclined screen mechanism.

3. The secondary solid-liquid separation equipment for fecal sewage according to claim 2 wherein the drainage mechanism comprises a first baffle and a second baffle, one end of the first baffle is connected with the lower end of the inclined screen mechanism and is used for separating the separated coarse particles from the primary separation liquid; the second partition plate is opposite to the first partition plate, one end of the second partition plate is connected with the primary separation shell, the other end of the second partition plate extends towards the first partition plate and is provided with an upward baffle plate to form an overflow structure, and the other end of the first partition plate and the other end of the second partition plate are provided with an overlapping area but are not connected in an overlapping mode.

4. The secondary solid-liquid separation equipment for fecal sewage according to claim 1 wherein the secondary strainer separator comprises a secondary separation housing, a secondary strainer mechanism and a net washing mechanism, wherein the secondary strainer mechanism comprises a strainer driving mechanism, a roller fixed in the housing and a strainer body in transmission connection with the roller, the strainer body is driven by the roller to move towards one side of the screw extrusion dehydration mechanism.

5. The secondary solid-liquid separation equipment for fecal sewage according to claim 4 wherein the strainer body is a woven mesh, the mesh number of the woven mesh is 60-100 mesh.

6. The secondary solid-liquid separation equipment for fecal sewage according to claim 4 further comprising a scraper hold-down mechanism formed between the strainer body and the screw extrusion dewatering mechanism for scraping solid particles on the strainer body into the screw extrusion dewatering mechanism.

7. The secondary solid-liquid separation equipment for the fecal sewage of claim 6, wherein the scraper plate pressing mechanism comprises a scraper assembly, a pressing spring assembly and a rotating assembly, wherein the scraper assembly comprises a scraper main body, a rotating shaft and a nylon scraper, the scraper main body is fixedly connected with the nylon scraper, and the nylon scraper is tightly attached to the filter screen body; the compression spring assembly comprises a spring body, a bolt, a nut and a spring seat; the rotating assembly comprises a rotating ring, and the rotating shaft is installed on the rotating ring.

8. The secondary solid-liquid separation equipment for the fecal sewage according to claim 4, further comprising a filter screen guiding mechanism, wherein the filter screen guiding mechanism is formed at two sides of the filter screen body to prevent the filter screen body from deviating on the roller; the filter screen guide mechanism comprises a U-shaped support, a pin shaft and a V-shaped groove pulley, the V-shaped groove pulley is fixedly installed in the U-shaped support through the pin shaft, the U-shaped support is fixedly connected with the second-stage separation shell, and the outer side of the filter screen body is movably clamped in a V-shaped groove of the V-shaped groove pulley.

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