CN218435163U - High solid waste liquid that contains deposits separator - Google Patents

Abstract

The utility model discloses a high solid waste liquid precipitation separation device, which comprises a tank body, wherein the upper part of the tank body is provided with a water inlet pipe and a water outlet pipe, a pipeline mixer is arranged in the water inlet pipe, and a medicine inlet pipe is communicated with the water inlet pipe; a central cylinder is arranged in the tank body, and the upper part of the central cylinder is connected with a water inlet pipe; a rotational flow device is arranged in the central cylinder, and a baffle plate is arranged at the bottom of the central cylinder; an inclined plate layer is arranged between the central cylinder and the tank body; the bottom of the tank body is connected with a sedimentation cone hopper, and the bottom of the sedimentation cone hopper is connected with a sludge discharge pipe. This application improves the promotion on the basis of present conventional vertical sedimentation tank, can carry out effective separation to the solid-liquid that contains after the solid waste liquid flocculation, and separation effect is good, and the treatment effeciency is high, has wide application prospect.

Description

High solid waste liquid that contains deposits separator

Technical Field

The utility model relates to a waste liquid treatment technical field, in particular to high sedimentation separator who contains solid waste liquid that well drilling in-process produced.

Background

According to statistics, in the petroleum industry of China, millions of tons of oily sludge are generated each year on average, and the yield also rises year by year. In the national records of hazardous wastes, it is clearly shown that oily sludge belongs to waste mineral oil (HW 08 class), and in the national clean production promotion law and the solid waste environmental pollution prevention and control law, the oily solid waste is required to be treated in a harmless way, so that the oily solid waste is inevitably treated in a recycling and harmless way.

The oil-containing solid waste is a main pollutant generated in the development process of an oil field, and generally has extremely complex component properties, serious emulsification, difficult dehydration and great treatment difficulty. In addition, in the deep exploitation of most oil fields, various chemical agents are added in the crude oil exploitation process, so that the bridging structures among crude oil, various pollutants and silt in the oil-containing sludge are firmer, the components and the structures of the oil-containing sludge are more complex, and the treatment difficulty is increased. At present, a reduction treatment mode of demulsification and centrifugal separation is conventionally adopted, but the liquid phase generated after centrifugation has high salinity and high solid content and contains a small amount of emulsified oil.

Aiming at a liquid phase after centrifugation, a pretreatment mode of oxidation and flocculation precipitation is adopted at present to realize clarification and impurity removal of the liquid phase. However, the following problems exist: 1. the waste liquid has high salinity, so that the flocculation effect is relatively poor and the stability is poor; 2. the solid phase content in the liquid phase is large, which causes the serious problem of pipe blockage of the conventional inclined plate sedimentation tank.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve traditional sedimentation tank separation effect poor, the high problem of waste liquid impact strength provides a high solid waste liquid sedimentation separator that contains.

The application is realized by adopting the following technical scheme.

A high-solid-content waste liquid precipitation separation device comprises a tank body, wherein a water inlet pipe and a water outlet pipe are arranged at the upper part of the tank body, a pipeline mixer is arranged in the water inlet pipe, and a medicine inlet pipe is communicated with the water inlet pipe; a central cylinder is arranged in the tank body, and the upper part of the central cylinder is connected with a water inlet pipe; a rotational flow device is arranged in the central cylinder, and a baffle plate is arranged at the bottom of the central cylinder; an inclined plate layer is arranged between the central cylinder and the tank body; the bottom of the tank body is connected with a sedimentation cone hopper, and the bottom of the sedimentation cone hopper is connected with a sludge discharge pipe.

Further, the lower part of the central cylinder forms a bell mouth.

Furthermore, the upper end of the inclined plate layer is positioned below the water outlet pipe, and the lower end of the inclined plate layer is positioned above the bell mouth of the central cylinder.

Furthermore, the top of the tank body is provided with an overflow weir.

Furthermore, an annular washing spray head is arranged at the feed inlet of the sedimentation cone hopper.

The present application has the following advantageous effects.

1. The utility model discloses a precipitation separation device carries out the coagulating sedimentation separation to high salt waste liquid, and is poor with conventional high salt waste liquid flocculation link stability, and the impact is great different to flocculation reaction influence a little, and this application has set up the whirl device after flocculation reaction takes place, can effectively reduce the influence of rivers impact;

2. the utility model discloses a precipitation separation device can combine together with the pre-oxidation reaction technology, forms the pretreatment process combination of high enriched waste liquid, replaces traditional fenton + medicament coagulation + inclined plate sedimentation's technology combination, accords with the development direction that current waste liquid was dealt with.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Wherein, 1, a water inlet pipe; 2. a water outlet pipe; 3. a sludge discharge pipe; 4. a swirling device; 5. a ramp sheet layer; 6. washing the spray head; 7. a pipeline mixer; 8. a baffle plate; 9. an overflow weir; 10. a medicine inlet pipe; 11. a tank body; 12. a central barrel; 13. a sedimentation cone.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in figure 1, the high solid content waste liquid precipitation separation device comprises a tank body 11, wherein the top of the tank body 11 is provided with an overflow weir 9.

The upper part of the tank body 11 is provided with a water inlet pipe 1 and a water outlet pipe 2, and the water inlet pipe 1 is communicated with a medicine inlet pipe 10. Preferably, the outlet pipe 2 is higher than the inlet pipe 1. Be equipped with line mixer 7 in the inlet tube 1, line mixer 7 can carry out the abundant reaction with medicament and waste liquid.

A central cylinder 12 is arranged in the tank body 11, and the upper part of the central cylinder 12 is connected with the water inlet pipe 1; the cyclone device 4 is arranged in the central cylinder 12, a bell mouth is formed at the lower part of the central cylinder 12, a baffle plate 8 is arranged at the outlet of the bell mouth, and a certain distance is reserved between the baffle plate 8 and the bottom of the tank body 11. The cyclone device 4 can prevent the impact of the high-flow-rate waste liquid and the central cylinder 12 and reduce the influence on the separation effect when the flocculation effect is not good; the baffle plate 8 can realize uniform distribution of the waste liquid in the tank body 11.

An inclined plate layer 5 is arranged between the central cylinder 12 and the tank body 11; the upper end of the inclined plate layer 5 is positioned below the water outlet pipe 2, specifically positioned 30cm below the overflow weir 9, and the lower end of the inclined plate layer 5 is positioned above the bell mouth of the central cylinder 12. The inclined plate layer 5 can improve the precipitation area of the separation area, shorten the precipitation time and improve the precipitation efficiency.

The bottom of this application jar body 11 is connected and is deposiing awl fill 13, and the bottom of deposiing awl fill 13 is connected with mud pipe 3. Deposit the feed inlet department of awl fill 13 and be equipped with annular washing terminals 6, washing terminals 6 can regularly carry out mud and once wash, is favorable to the lower part mud of arranging, solves and deposits solid phase in the awl fill 13 and pile up the jam problem.

The treatment process of the high-solid-content waste liquid comprises the following steps:

1) The waste liquid enters from the water inlet pipe 1, the flocculating agent, the coagulant aid and other medicaments enter from the medicament inlet pipe 10, the full reaction of the waste liquid and the medicaments is realized under the action of the pipeline mixer 7, and finally the waste liquid enters into the central cylinder 12;

2) The reacted waste liquid passes through the cyclone device 4 in the central cylinder 12 and then the bottom baffle plate 8 to realize the uniform water distribution of the waste liquid in the tank body 11;

3) The waste liquid after flocculation reaction is subjected to solid-liquid separation in the tank body 11, the liquid phase floats upwards, and the solid phase sinks;

4) After the liquid phase flows into the inclined plate layer 5, the water flow between the pipes is changed from turbulent flow to laminar flow, and finally the liquid phase is collected and discharged outside through an overflow weir 9 at the top;

5) The precipitated solid phase is discharged out of the equipment through a bottom sludge discharge pipe 3.

The embodiment of this embodiment is the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.

Claims (5)

1. The utility model provides a high solid waste liquid that contains deposits separator, includes jar body (11), its characterized in that: a water inlet pipe (1) and a water outlet pipe (2) are arranged at the upper part of the tank body (11), a pipeline mixer (7) is arranged in the water inlet pipe (1), and a medicine inlet pipe (10) is communicated with the water inlet pipe (1); a central cylinder (12) is arranged in the tank body (11), and the upper part of the central cylinder (12) is connected with the water inlet pipe (1); a rotational flow device (4) is arranged in the central cylinder (12), and a baffle plate (8) is arranged at the bottom of the central cylinder (12); an inclined plate layer (5) is arranged between the central cylinder (12) and the tank body (11); the bottom of the tank body (11) is connected with a sedimentation cone hopper (13), and the bottom of the sedimentation cone hopper (13) is connected with a mud pipe (3).

2. The high solid content waste liquid precipitation separation device according to claim 1, wherein: the lower part of the central cylinder (12) forms a bell mouth.

3. The high solid content waste liquid precipitation separation device according to claim 2, characterized in that: the upper end of the inclined plate layer (5) is positioned below the water outlet pipe (2), and the lower end of the inclined plate layer (5) is positioned above the bell mouth of the central cylinder (12).

4. The high solid content waste liquid precipitation separation device according to claim 1, wherein: the top of the tank body (11) is provided with an overflow weir (9).

5. The high solid content waste liquid precipitation separation device according to claim 1, wherein: an annular washing spray head (6) is arranged at the feed inlet of the sedimentation cone hopper (13).

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