CN217449069U

CN217449069U - Sand-slag separation box and kitchen garbage slurry sand setting and impurity removing system

Info

Publication number: CN217449069U
Application number: CN202221130342.1U
Authority: CN
Inventors: 李晨彬; 陈慧慧; 吴银登; 邓靖; 黄强; 刘玉坤
Original assignee: Shanghai Institute for Design and Research on Environmental Engineering Co Ltd
Current assignee: Shanghai Institute for Design and Research on Environmental Engineering Co Ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-09-20
Anticipated expiration: 2032-05-05

Abstract

The utility model discloses a sand sediment separator box and surplus rubbish thick liquid sand setting edulcoration system in kitchen mainly include the box, and one side of box is equipped with the feed inlet, and the opposite side of box is equipped with the delivery port, be equipped with in the box and separate the polylith baffle for a plurality of settlement zone of intercommunication with box inner space, wherein: and the bottom of each settling area is provided with a sand discharge port. Compared with the prior art, the utility model discloses in, after the thick liquid got into the box, it loops through a plurality ofly subsides the region, has prolonged thick liquid circulation route, and heavy matter debris progressively subsides to the bottom at this in-process, have improved the separation efficiency of heavy matter debris.

Description

Sand-slag separation box and kitchen garbage slurry sand setting and impurity removing system

Technical Field

The utility model belongs to the splitter field specifically is a sand sediment separator box and surplus rubbish thick liquid sand setting edulcoration system in kitchen.

Background

The kitchen waste comprises kitchen waste, household kitchen waste and other kitchen waste. Kitchen waste slurry is produced in the pretreatment process, and the main sources are as follows:

(1) draining water in a kitchen waste receiving hopper and producing slurry in the pulping process;

(2) vehicle wash water and floor wash water. The slurry TS (slurry solid content) of the kitchen waste is generally not more than 15%.

The kitchen waste is characterized by containing animal and vegetable grease, organic slurry, heavy impurities (such as sand, ceramics, glass and the like) and light impurities (such as fibers, plastics, fabrics and the like).

The animal and vegetable oil content in the kitchen waste slurry is generally 1-5%, and if the animal and vegetable oil directly enters an anaerobic fermentation system, the anaerobic fermentation (wet anaerobic, semi-dry anaerobic or dry anaerobic) is adversely affected. In addition, the grease in the slurry has higher economic benefit, and the grease is not separated, which causes great waste.

The grease in the kitchen waste slurry is separated, and a three-phase oil extractor (which is used for extracting oil after heating the slurry) is mainly used. However, heavy impurities in kitchen waste slurry can aggravate the abrasion of equipment, the maintenance cost is increased, and the light impurities easily block the outlet position of a rotary drum inside the three-phase oil extractor, so that the equipment is frequently stopped and overhauled, the workload of workers is increased, and the normal production of projects is influenced.

Therefore, there is a need for an apparatus for performing a sand-slag separation process prior to oil extraction.

SUMMERY OF THE UTILITY MODEL

On the one hand, get into back end equipment in order to avoid corresponding debris in order to realize the sand sediment separation, the utility model provides a sand sediment separator box, including the box, one side of box is equipped with the feed inlet, and the opposite side of box is equipped with the delivery port, be equipped with the polylith baffle that separates the box inner space for a plurality of settlement regions of intercommunication in the box, wherein:

and the bottom of each settling area is provided with a sand discharge port.

After entering the box body, the slurry sequentially passes through the plurality of sedimentation areas, the slurry flow path is prolonged, heavy impurities are gradually sedimentated to the bottom in the process, and the separation efficiency of the heavy impurities is improved.

In addition, the flow of the slurry gradually tends to be stable through gradual limitation, and the sedimentation of heavy impurities and the upward floating of light impurities are promoted.

Preferably, the heights of the upper ends of the plurality of partition plates are sequentially increased along the direction from the feed port to the water outlet

Furthermore, in order to prevent incrustation and stratification on the liquid surface, a slag scraping device is further arranged in the box body.

Furthermore, the bottom of each settling area is provided with at least one sand washing spiral, the side wall of the box body where each settling area is located is provided with at least one flushing water inlet, and the opening direction of the flushing water inlet is inclined downwards. Before the settled sand is discharged, the settled sand can be washed to remove substances such as grease and the like attached to the settled sand.

On the other hand, in order to improve the sand-slag separation, the utility model provides a surplus rubbish thick liquid sand setting edulcoration system in kitchen, including sand setting collector, sand-water separator, automatic shaker and sand-slag separator box, wherein:

each sand discharge port of the sand-slag separation box is connected with the sand setting collector through a sand discharge valve, and the sand setting collector conveys the collected sand setting to the sand-water separator through a pipeline or a conveying device;

the water outlet of the sand-slag separation box is connected with the automatic impurity remover by a water outlet valve.

When the system is used, the technological process of the kitchen waste slurry sand setting and impurity removing system is simple, and the sand-slag separation box does not need to be cleaned frequently by manpower. Based on sand sediment knockout box, can effectual collection heavy debris, in addition can further through washing to organic matter and grease in the as far as possible removal heavy debris reduces the loss rate of organic matter and grease.

Drawings

FIG. 1 is a schematic diagram of a kitchen waste slurry sand-settling and impurity-removing system provided with a sand-slag separation box in the embodiment.

FIG. 2 is a schematic view of the slag scraping device in the embodiment.

Description of the figure numbers:

1. the sand-slag separation box comprises a sand-slag separation box body 10, a box body 11, a feeding port 12, a water outlet 13, a sand settling bin 14, a viewing mirror 15, an exhaust port 16, a flushing water inlet 17, a drain port 18 and a liquid level meter.

2. Partition, 20. settling area.

3. The slag scraping device 30, the transmission chain 31, the scraper 32, the transmission chain wheel 33, the driving device 34 and the mounting part.

4. Sand washing screw, 40, sand discharge valve.

5. A sand setting collector, 6, a sand-water separator and 7, an automatic impurity removing machine.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Referring to fig. 1, the sand and slag separating tank 1 of the present embodiment includes a tank body 10. A feed inlet 11 is arranged on one side of the box body 10, and a water outlet 12 is arranged on the other side of the box body 10. Slurry enters the box body 10 from the feed port 11 and then flows to the water outlet 12, and heavy impurities such as sand and stone in the slurry settle to the bottom of the box body 10 in the process.

Furthermore, a plurality of partition boards 2 are arranged in the box body 10 at intervals. The partition 2 thus divides the space inside the tank 10 into a plurality of settling areas 20 which are still in communication. The slurry enters the tank 10 and then passes through the plurality of settling zones 20 in sequence.

Under the action of the partition board 2, the stroke of the slurry in the box body 10 is prolonged, the sedimentation probability of heavy impurities is increased, and the sedimentation effect is improved.

In addition, the partition plate 2 also has a blocking effect, so that the flow velocity of the slurry can be reduced, and the sedimentation effect is improved. After entering the box body 10, the slurry firstly stays in one settling area 20 and then overflows to the next settling area 20, and the flow of the slurry gradually tends to be stable through gradual limitation, thereby being beneficial to settling of heavy impurities.

Preferably, the lower part of the box 10 at the position of each settling zone 20 is provided with a sand settling bin 13 in a funnel configuration, so as to collect and discharge settled heavy impurities. Each partition 2 separates two adjacent sand magazines 13.

Preferably, the lower end of each partition plate 2 is fixed on the highest box body between two adjacent sand settling bins 13. At this time, the two adjacent sand settling silos 13 are approximately independent of each other, and thus the deposition processes in the two sand settling silos 13 do not interfere with each other.

Preferably, the heights of the upper ends of the plurality of partition plates 2 are sequentially increased in the direction from the feed port 11 to the water outlet 12.

In the case 10, the light impurities float up to the liquid surface, and some of the grease-like substances are likely to be deposited and thus are difficult to be discharged.

Further, a slag scraping device 3 is arranged in the box body 10 and used for disturbing the liquid level in the box body 10 and a water layer close to the liquid level to prevent the liquid level from forming a layer, so that light impurities on the upper layer can drift to the water outlet 12 along with water flow and are discharged.

In some embodiments, the slag scraping device 3 is further configured to scrape light impurities towards the water outlet 12.

Referring to fig. 2, the slag scraping device 3 includes a transmission chain 30 and one or more scraping plates 31 disposed on the transmission chain 30.

The drive chain 30 is coupled to two drive sprockets 32, wherein the drive sprockets 32 are coupled to a drive device 33. As the drive chain 30 rotates, the scraper 31 moves.

The squeegee 31 may be configured to scrape in one direction or configured to scrape back and forth by controlling the output of the driving device 33.

The drive chain 30 may also be replaced by a drive belt. In this embodiment, the slag scraping device 3 is fixed on a mounting part 34, and the mounting part 34 is fixed with the box body 10.

Preferably, in the slag scraping device 3, the hanging end part of the scraping plate 31 can extend into the tank body 10 below the liquid level, and the rest part is positioned above the liquid level.

Preferably, the driving chain 30 is provided with a plurality of scrapers 31 to improve the disturbing and scraping effects.

When the scraper 31 is located at the lower side of the transmission chain 30, the transmission chain 30 rotates counterclockwise, and the scraper 31 moves toward the water outlet 12.

In some embodiments, the length of the transmission chain 30 in the horizontal direction is long enough to keep the liquid level in the tank 10 not higher than the highest position of the water outlet 12, so as to ensure that the liquid surface can be scraped to the position of the water outlet 12 to be discharged.

In some embodiments, the scum scraping device 3 is continuously operated to prevent the liquid surface from forming a layer, so that scum on the liquid surface can be discharged along with the water flow to the water outlet 12 without scraping the layer on the liquid surface to the water outlet 12.

Further, a viewing mirror 14 is disposed on the top of the box 10, and the condition inside the box 10 can be viewed downwards through the viewing mirror 14.

Further, the top of the box body 10 is also provided with an exhaust port 15 for exhausting odor in the box body 10, and the exhaust port can be used for connecting an odor collecting and treating system.

The heavy impurities deposited on the lower portion of the box 10 are easily attached with substances such as oil stains, and preferably, the heavy impurities can be washed before being discharged.

Furthermore, the bottom of the box body 10 is also provided with a sand washing screw 4, and the box body 10 is also provided with a washing water inlet 16.

Specifically, at least one sand washing screw 4 is disposed in the tank 10 at a position corresponding to the bottom of each settling zone 20, and at least one washing water inlet 16 is disposed on the sidewall of the tank 10 where each settling zone 20 is located.

During cleaning, the washing water inlet 16 is connected with a high-pressure warm water source, so that the high-pressure warm water is washed towards heavy impurities, and meanwhile, the sand washing spiral 4 is started to throw the heavy impurities to be fully contacted and cleaned with the warm water.

Preferably, the temperature of the warm water is about 45-55 ℃, the washing time is 10min, and the standing is carried out for 10min after the washing is finished.

Further, the box 10 at the position of the sand washing screw 4 is provided with a sand discharge port (not shown in the figure) for discharging heavy impurities.

The sand discharge port is connected with a sand discharge valve 40 for controlling the opening and closing of the sand discharge port. Normally, the sand discharge valve 40 is closed.

Before the washing step is performed, the sand discharge valve 40 may be opened to discharge the water inside the tank 10.

Alternatively, it is preferred that the side walls of the tank 10 in which each settling zone 20 is located are also provided with drains 17. During the use process, the height of the settled sand is ensured not to exceed the evacuation port 17, and at this time, the water in the box body 10 can be evacuated through the evacuation port 17 before the cleaning step is executed. At this time, the sand discharge valve 40 is opened at the time of sand discharge or when the grit separator tank 1 is completely emptied.

The flushing water inlet 16 may be located above the drain 17 or below the drain 17 in height. Preferably, the opening of the washing water inlet 16 is inclined downward to avoid clogging.

Further, a liquid level meter 18 for sensing the liquid level in the tank 10 is also provided on the tank 10.

Further, the feeding port 11 is connected with a feeding pipe 110 extending into the box body 10, wherein preferably, a height difference between a height of the other hanging end of the feeding pipe 110 and the top of the sand settling bin 13 is about 20cm, and a preferred range is 15-25 cm.

Referring to fig. 1, the kitchen waste slurry sand setting and impurity removing system of the present embodiment includes a sand-slag separating box 1, a sand setting collector 5, a sand-water separator 6, and an automatic impurity remover 7.

The sand discharge valves 40 connected with the sand discharge ports of the sand-slag separation box 1 are communicated with the sand setting collector 5, and when the sand discharge valves 40 are opened, the sand setting in the sand-slag separation box 1 is discharged into the sand setting collector 5.

The sand setting collector 5 conveys the sand setting collected by the sand setting collector to a sand-water separator 6 by a pipeline or a conveying device to complete sand-water separation. And the residual sand washing water after sand-water separation flows back to any previous treatment link.

The water outlet 12 of the sand-slag separation box 1 is connected with a water outlet valve 120, the water outlet valve 120 is also communicated with a feed inlet (not shown in the figure) of the automatic impurity remover 7, and further organic slurry and light impurities are conveyed to the automatic impurity remover 7 through a pipeline, wherein the water outlet valve 120 is kept in a normally open state, a screen is arranged in the automatic impurity remover 7, and the gap of the screen is 2mm, so that most light impurities can be intercepted; in the operation process of the automatic impurity removing machine 7, cleaning water is sprayed every half hour at the water temperature of 45-55 ℃, so that impurities are prevented from blocking the screen and grease attached to the screen is washed; and conveying the slurry after impurity removal to a heating link, extracting oil, and transporting the separated impurities for disposal.

In this embodiment, the grit collector 5 is an auger type collecting screw, belongs to the prior art, and can be replaced by other existing collecting devices.

The sand-water separator 6 and the automatic impurity removing machine 7 are also the prior art, and the embodiment does not relate to the internal improvement thereof, so the description is omitted.

After the treatment by the sand setting and impurity removing system, the removal rate of heavy impurities in the kitchen waste slurry reaches 70 percent, the removal rate of light impurities reaches 80 percent, the abrasion to subsequent process equipment is greatly reduced, and the running stability of the subsequent process is improved.

The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.

Claims

1. The utility model provides a sand sediment separator box, includes the box, its characterized in that, and one side of box is equipped with the feed inlet, and the opposite side of box is equipped with the delivery port, the box is internal to be equipped with the polylith baffle that separates box inner space for a plurality of settlement regions of intercommunication, wherein:

the bottom of each settling area is provided with a sand discharge port,

and after entering the box body, the slurry sequentially passes through a plurality of sedimentation areas.

2. The grit-separating box as claimed in claim 1, wherein the height of the upper ends of said plurality of partitions is sequentially increased in a direction from said feed port to said water outlet.

3. A grit separator box as claimed in claim 1, wherein a slag scraping means is provided in said box.

4. The grit-separation box of claim 3 wherein said scraping means comprises a drive chain/belt and one or more scrapers disposed on said drive chain/belt, said drive chain moving said scrapers when rotated, wherein said scrapers are cantilevered to extend below the liquid level in said box when moved.

5. The sand-slag separating box according to claim 1, wherein the top of the box body is also provided with a sight glass, an exhaust port and a liquid level meter for sensing the liquid level in the box body;

the lower part of the box body at the position of each settling area is provided with a sand settling bin in a funnel shape;

the feed inlet is connected with the inlet pipe that stretches into in the box, the height at the end of hanging of inlet pipe place with the difference in height at the top of sand setting storehouse is 15 ~ 25 cm.

6. The grit-separation tank as claimed in claim 1, wherein at least one sand washing screw is provided at the bottom of each settling zone, and at least one washing water inlet is provided on the side wall of the tank body in which each settling zone is located, wherein the opening of said washing water inlet is inclined downward.

7. The grit-slag separation box of claim 6 wherein the side wall of the box in which each settling zone is located is further provided with a drain.

8. The grit-residue separation tank of claim 1, wherein said grit outlet is connected to a grit discharge valve, and the water outlet of the grit-residue separation tank is connected to a water outlet valve.

9. A kitchen waste slurry sand setting and impurity removing system is characterized by comprising a sand setting collector, a sand-water separator, an automatic impurity removing machine and a sand-slag separating box according to any one of claims 1 to 8, wherein:

each sand discharge port of the sand-slag separation box is connected with the sand setting collector by a sand discharge valve, and the sand setting collector conveys the collected sand setting to the sand-water separator by a pipeline or a conveying device;

10. The kitchen waste slurry, grit and debris removal system of claim 9, wherein said grit collector is a collection auger.