CN206624676U - A kind of oily-water seperating equipment - Google Patents

Abstract

The utility model discloses an oil-water separation device, which comprises: a slag removal mechanism, which includes a slag removal tank, a grid, a water inlet, a slag discharge port, and an overflow pipe; a sedimentation mechanism, which includes a sedimentation tank, and a sludge cutting pump and a plurality of first partitions, each first partition is connected to one inner wall of the sedimentation tank and forms a first gap with the other inner wall of the sedimentation tank, and two adjacent partitions are arranged alternately; separated The mechanism includes a separation pool, an oil tank, an oil scraper, a drain pipe, multiple bubble generators and multiple second partitions. On the one hand, the utility model arranges a plurality of first partitions in the sedimentation tank, so that the upper end of the sedimentation tank forms an S-shaped flow channel connected from end to end, which avoids the impact on the water outlet of the flow channel, improves the sedimentation efficiency, and sets the second gap at the same time. It facilitates the discharge of the residue deposited at the bottom; on the other hand, a second separator is provided, which reduces the impact on the oil and water in the separation tank and prolongs the oil and water separation time, improving the oil and water separation efficiency.

Description

An oil-water separation device

technical field

The utility model relates to oil-water separation technology, in particular to an oil-water separation device.

Background technique

With the development of our country's social economy, a large number of catering enterprises have emerged as the times require. The scale and number of hotels, hotels, restaurants, canteens and centralized catering complexes are increasing day by day, and the resulting catering wastewater is increasing. The natural ecological environment, and the oil-water separator can better treat the catering wastewater to reduce its pollution rate. Since the catering wastewater contains a large amount of residue, it needs to be filtered through a grid or a filter, but there are still small particles of solid residue in the filtered wastewater, so the above solid residue needs to be precipitated to discharge the solid residue. At present, the filtered sewage is generally directly subjected to sedimentation treatment, but because the catering wastewater is extremely unstable when it is filtered, it is easy to form impacts and vibrations on the sedimented sewage after filtration, resulting in the long-term turbidity of the wastewater in the sedimentation tank. The purpose of precipitating solid residues cannot be achieved; at the same time, the existing oil-water separator mainly uses the difference in specific gravity of oil and water for sedimentation separation, but in practical application, the waste water is continuously discharged, which may easily lead to vibration during oil-water separation, which reduces the oil-water separation efficiency.

Utility model content

The purpose of the utility model is to overcome the above-mentioned technical deficiencies, propose an oil-water separation device, and solve the technical problems of poor solid residue separation and low oil-water separation efficiency in the prior art during oil-water separation.

In order to achieve the above technical purpose, the technical solution of the present utility model provides an oil-water separation device, comprising:

The slag removal mechanism includes a slag removal tank, a grid that is arranged obliquely in the slag removal tank and separates the slag removal cavity in the slag removal tank to form a first cavity and a second cavity, and the grid that is connected to the slag removal tank A water inlet and a slag outlet connected to the first cavity, and an overflow pipe connected to the second cavity;

The sedimentation mechanism includes a sedimentation tank whose water inlet is connected to the overflow pipe, a sludge cutting pump arranged at the bottom of the sedimentation tank, and a plurality of first partitions arranged in parallel in the sedimentation tank. A partition is connected to one inner wall of the sedimentation tank and forms a first gap with the other inner wall of the sedimentation tank, two adjacent partitions are arranged alternately, and the lower end of each first partition There is a second gap with the bottom of the sedimentation tank;

The separation mechanism includes a separation tank, an oil tank, an oil scraper, a drain pipe, a plurality of bubble generators and a plurality of second partitions, and a plurality of second partitions are built in parallel in the separation tank and separate the separation tank Form a plurality of separation chambers connected in sequence from end to end, the separation chamber at the front end is connected to the overflow port of the sedimentation tank, and the lower end of the separation chamber at the end is connected to the drain pipe; multiple bubble generators are arranged one by one At the bottom of the separation chamber, one end of the oil scraper is built into the upper end of the terminal separation chamber, and the other end extends into the oil tank.

Preferably, the separation mechanism further includes a heater arranged at the upper end of the separation chamber at the end.

Preferably, the separation mechanism further includes a liquid level sensor for detecting the liquid level of the separation tank, a solenoid valve provided on the drain pipe, and a controller for controlling the switch of the solenoid valve according to the liquid level.

Preferably, the controller includes a liquid level signal acquisition circuit for collecting an electrical signal generated by the liquid level sensor to detect the liquid level, a first comparison circuit for comparing whether the electrical signal is greater than a first threshold, and a circuit for when the When the electrical signal is greater than the first threshold, a first drive circuit for driving the solenoid valve to conduct, a second comparison circuit for comparing whether the electrical signal is less than the second threshold, and a second comparison circuit for comparing the electrical signal when the electrical signal is greater than the second threshold The second driving circuit that drives the electromagnetic valve to be turned off at the time.

Preferably, the slag removal mechanism further includes a screw slag discharger, the screw slag discharger is arranged horizontally and its feed end is connected to the slag discharge port.

Compared with the prior art, on the one hand, the utility model sets a plurality of first partitions in the sedimentation tank, so that the upper end of the sedimentation tank forms an S-shaped flow channel connected from end to end, which avoids the impact on the outlet end of the flow channel and improves the sedimentation efficiency At the same time, setting the second gap also facilitates the discharge of the residue deposited at the bottom; on the other hand, setting the second separator reduces the impact on the oil and water in the separation tank and prolongs the oil and water separation time, improving the oil and water separation efficiency.

Description of drawings

Fig. 1 is the connection structure schematic diagram of the oil-water separation device of the present utility model;

Fig. 2 is the top view of Fig. 1 of the present utility model;

Fig. 3 is a connection block diagram of the controller of the present invention.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Referring to Fig. 1 and Fig. 2, the embodiment of the present utility model provides an oil-water separation device, comprising:

The slag removal mechanism 1 includes a slag removal tank 11, a grid that is arranged obliquely in the slag removal tank 11 and separates the slag removal chamber in the slag removal tank 11 to form a first cavity and a second cavity 12. A water inlet 13 and a slag outlet 14 communicating with the first cavity, and an overflow pipe 15 communicating with the second cavity;

Settling mechanism 2, which includes a settling tank 21 whose water inlet is connected to the overflow pipe 15, a sludge cutting pump 22 arranged at the bottom of the settling tank 21, and a plurality of first settling tanks arranged in parallel in the settling tank 21 A partition 23, each first partition 23 is connected to one side inner wall of the sedimentation tank 21 and forms a first gap 231 with the other side inner wall of the sedimentation tank 21, two adjacent partitions The plates are staggered, and there is a second gap 232 between the lower end of each first partition 23 and the bottom of the sedimentation tank 21;

The separation mechanism 3 includes a separation tank 31, an oil tank 32, an oil scraper 33, a drain pipe 34, a plurality of bubble generators 35 and a plurality of second partitions 36, and a plurality of the second partitions 36 are built in parallel Describe the separation tank 31 and separate the separation tank 31 to form a plurality of separation chambers 311 connected in sequence from end to end, the separation chamber 311 at the front end is connected with the overflow port 211 of the sedimentation tank 21, and the separation chamber 311 at the end The lower end is connected to the drain pipe 34; a plurality of bubble generators 35 are arranged one by one at the bottom of the separation chamber 311, one end of the oil scraper 33 is built into the upper end of the terminal separation chamber 311, and the other end extends to the oil tank within 32.

When oil-water separation is carried out in this embodiment, the catering wastewater enters the first cavity of the slag removal tank 11 through the water inlet 13, and the oily water and small particle residues in the wastewater enter the second cavity through the filter holes on the grid 12, and the catering wastewater enters the second cavity through the filter holes on the grid 12. The large particle residues in the waste water are left in the first cavity, and the residues in the first cavity can be discharged through the slag discharge port 14 located at the bottom of the slag removal tank 11, while the sewage and small particle residues entering the second cavity are passed through The overflow pipe 15 enters the sedimentation tank 21, and the first partitions 23 in the sedimentation tank 21 are all vertically staggered, so that the upper end of the separation tank 31 forms an S-shaped flow channel, and the front end of the flow channel will be affected by the overflow. The impact of the waste water discharged from the pipe 15 tends to calm gradually as the waste water moves along the flow channel, which is conducive to the precipitation of small particle residues in the waste water. At the same time, the use of the S-shaped flow channel also increases the residence time of the waste water in the sedimentation tank 21 , which is conducive to improving the sedimentation rate of small particle residues; at the same time, there is a second gap 232 between the lower end of the first partition 23 and the bottom of the sedimentation tank 21 in this embodiment, that is, between the lower end of the first partition 23 and the bottom of the sedimentation tank 21 With a certain distance, the above distance can be used to precipitate small particles of impurities, which is conducive to the subsequent discharge of the precipitated impurities through the sludge cutting pump 22; after sedimentation, the wastewater overflows from the overflow port 211 on the sedimentation tank 21 and enters the separation tank 31 inside, and the second partition 36 in the separation pool 31 separates the separation pool 31 to form a plurality of separation cavities 311 connected in sequence from end to end, the second partition 36 is set roughly the same as the first partition 23, but the second partition The lower end of the plate 36 is connected to the bottom of the separation tank 31, so that a plurality of separation cavities 311 are connected to form an S-shaped cavity, which prolongs the residence time of the waste water in the separation tank 31, and is beneficial to a plurality of bubble generators 35 to sequentially treat the waste water. Oil-water separation, under the sequential action of multiple bubble generators 35 at the bottom of the separation tank 31, many tiny bubbles are formed at the bottom of each separation chamber 311. Due to the different specific gravity of oil and water, under the action of the tiny bubbles, the oil in the sewage As it floats up to the surface of the liquid surface, it improves the separation efficiency of oil and water; after the stratified oil and water move to the separation chamber 311 at the end, the oil on the upper layer is taken out by the oil scraper 33 into the oil tank 32, while the oil on the lower layer Sewage then has drainage pipe 34 to discharge.

When the waste oil floats to the surface of the sewage under the action of tiny air bubbles, the oil molecules combine together to form solid grease at low temperature, so the separation mechanism 3 in this embodiment also includes a heater located at the upper end of the separation cavity 311 at the end 37, which is mainly used to heat the upper layer of oil in the separation chamber 311 located at the end in winter or early spring, so as to ensure that the oil is in a liquid state, so that it can be easily discharged into the oil tank 32.

As shown in Fig. 1, Fig. 2 and Fig. 3, the better the effect of oil-water stratification, the lower the oil content in the sewage discharged from the drain pipe 34, the lower the pollution to the environment, and the higher the liquid level in the separation tank 31 The more conducive to oil-water stratification, so the separation mechanism 3 of the present embodiment also includes a liquid level sensor 38 for detecting the liquid level of the separation pool 31, a solenoid valve 39 arranged on the drain pipe 34, and a liquid level sensor according to the liquid level. The controller 30 that controls the switch of the electromagnetic valve 39 can control the sewage to be discharged only when the liquid level is higher.

Specifically as shown in FIG. 3 , the controller 30 includes a liquid level signal acquisition circuit 301 for collecting the electrical signal generated by the liquid level sensor 38 to detect the liquid level, and a first circuit for comparing whether the electrical signal is greater than the first threshold. A comparison circuit 302, a first drive circuit 303 for driving the solenoid valve 39 to conduct when the electrical signal is greater than a first threshold, a second comparison circuit 304 for comparing whether the electrical signal is smaller than a second threshold, The second drive circuit 305 is used to drive the solenoid valve 39 off when the electric signal is greater than the second threshold. When the liquid level in the separation tank 31 was higher than the upper limit value, the liquid level sensor 38 detected that the liquid level generated an electrical signal greater than the first threshold, and the first drive circuit 303 drove the solenoid valve 39 to conduct, and the drain pipe 34 began to drain water; When the liquid level in the pool 31 is discharged below the lower limit value, the electric signal generated by the liquid level sensor 38 detected by the liquid level is less than the second threshold value, the second drive circuit 305 drives the solenoid valve 39 to be turned off, and the drain pipe 34 stops draining water. Only when the liquid level in the separation tank 31 is between the upper limit value and the lower limit value, the drainage is realized, which avoids draining water when the water level is too low, and ensures that the separation tank 31 has a certain liquid level height, which is conducive to Ensure that the oil and water in the separation tank 31 are separated from oil and water without interruption, which can maximize the efficiency of oil and water separation.

In order to facilitate slag discharge, the slag removal mechanism 1 in this embodiment further includes a spiral slag discharge machine 16 , the spiral slag discharge machine 16 is arranged horizontally and its feed end is connected to the slag discharge port 14 .

Compared with the prior art, on the one hand, the utility model sets a plurality of first partitions in the sedimentation tank, so that the upper end of the sedimentation tank forms an S-shaped flow channel connected from end to end, which avoids the impact on the outlet end of the flow channel and improves the sedimentation efficiency At the same time, setting the second gap also facilitates the discharge of the residue deposited at the bottom; on the other hand, setting the second separator reduces the impact on the oil and water in the separation tank and prolongs the oil and water separation time, improving the oil and water separation efficiency.

The specific embodiments of the utility model described above do not constitute a limitation to the protection scope of the utility model. Any other corresponding changes and deformations made according to the technical concept of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (5)

1. A kind of 1. oily-water seperating equipment, it is characterised in that including：

   Slag removal mechanism, it includes slag removal tank, is obliquely installed and divides in the slag removal tank and by the slagging-off cavity in the slag removal tank Every grid, the water inlet connected with first cavity and the slag-drip opening for forming the first cavity and the second cavity and with described the The overflow pipe of two cavitys connection；

   Mechanism is precipitated, it includes sedimentation basin, the sludge located at the sedimentation basin bottom that water inlet end is connected with the overflow pipe and cut Cut pump and the multiple first partitions being set in parallel in the sedimentation basin, each first partition are all connected to the one of the sedimentation basin Side inwall is simultaneously staggered between the opposite side inwall of the sedimentation basin formed with the first gap, two neighboring dividing plate, and often There is the second gap between individual first partition lower end and sedimentation basin bottom；

   Separating mechanism, it includes separate tank, oil groove, Oil scraper, drainpipe, multiple bubble generators and multiple second partitions, more The individual second partition is parallel to be built in the separate tank and separate tank is separated to form to the multiple disengagement chambers being sequentially communicated from beginning to end Body, the separation cavity positioned at front end are connected with the overfall of the sedimentation basin, positioned at the lower end of the separation cavity of end and draining Pipe connects；Multiple bubble generators correspond and are arranged at the separation cavity bottom, and described Oil scraper one end is built in end Separate the upper end of cavity, the other end is extended in the oil groove.
2. 2. oily-water seperating equipment according to claim 1, it is characterised in that the separating mechanism is also included located at end Separate the heater of cavity upper end.
3. 3. oily-water seperating equipment according to claim 1 or 2, it is characterised in that the separating mechanism also includes being used to examine Survey the liquid level sensor, the magnetic valve on the drainpipe and the electromagnetism according to Liquid level of the liquid level of the separate tank The controller of threshold switch.
4. 4. oily-water seperating equipment according to claim 3, it is characterised in that the controller includes being used to gather liquid level biography Sensor detects the liquid level signal Acquisition Circuit of electric signal caused by liquid level, whether is more than first threshold for the electric signal The first comparison circuit, for driven when the electric signal is more than first threshold the solenoid valve conduction first drive electricity Road, for the electric signal whether be less than Second Threshold the second comparison circuit, for when the electric signal be more than second The second drive circuit that the magnetic valve is open close is driven during threshold value.
5. 5. oily-water seperating equipment according to claim 4, it is characterised in that the slag removal mechanism also includes a spiral deslagging Machine, the helical slag removing machine is horizontally disposed and its feed end is connected with the slag-drip opening.