CN212712855U

CN212712855U - Device for extracting dirty oil in water

Info

Publication number: CN212712855U
Application number: CN202021333232.6U
Authority: CN
Inventors: 刘作龙; 赵明磊; 宋丁盟; 李伟博; 牛广法; 邱晓梦; 王红杰
Original assignee: CITIC National Chemical Co Ltd
Current assignee: CITIC National Chemical Co Ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-03-16
Anticipated expiration: 2030-07-09

Abstract

The utility model belongs to the technical field of petrochemical, concretely relates to draw device of sump oil in sewage. The utility model provides a draw device of aquatic sump oil, includes the effluent water sump, and the top of effluent water sump is equipped with the sewage elevator pump, and the export end of sewage elevator pump passes through the discharging pipe and connects sump oil recovery system, and its characterized in that, the import end of sewage elevator pump is equipped with the inlet pipe, the inlet pipe includes horizontal segment inlet pipe and vertical section inlet pipe through hose connection, and the sewage elevator pump is connected to the head end of horizontal segment inlet pipe, and the end-to-end connection drum of vertical section inlet pipe can in time retrieve the sump oil of sewage upper portion enrichment through utilizing this device, reduces the production material consumption, reduces the sewage treatment expense, reduces the sump oil and volatilizees, guarantees the safety in production.

Description

Device for extracting dirty oil in water

Technical Field

The utility model belongs to the technical field of petrochemical, concretely relates to draw device of sump oil in sewage.

Background

In the petrochemical industry, sewage ponds are arranged in production device areas and are mainly used for collecting oily wastewater generated in the production process. Oily wastewater is collected and is conveyed to a sewage treatment plant through a sewage lifting pump in a sewage tank for sewage treatment. The density of a small amount of dirty oil in the sewage is less than that of the water, so that the sewage lifting pump can only extract the sewage from the bottom of the sewage pool, but cannot extract the dirty oil on the sewage. In long-period production, a small amount of dirty oil is slowly accumulated in the upper part of water in the sewage tank, and the design has the following problems:

1. dirty oil in the sewage is enriched on the water and cannot be recovered in time, and the dirty oil is conveyed to a sewage treatment system, so that material waste and material consumption are increased;

2. because the sewage tank always contains the dirty oil, the clean water generated in the production process can also become oily sewage when entering the sewage tank, so that the sewage yield is increased, and the sewage treatment cost is increased;

3. a mixture with high oil-gas content can be formed at the upper part of the sewage pool, peculiar smell can pollute the environment, and even explosive mixtures can be formed, so that safety accidents can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device for extracting dirty oil from sewage, which can be used for independently extracting floating oil in a sewage tank.

The utility model discloses a realize through following technical scheme: a device for extracting dirty oil in water comprises a sewage pool, a sewage lifting pump is arranged above the sewage pool, the outlet end of the sewage lifting pump is connected with a dirty oil recovery system through a discharge pipe, and is characterized in that the inlet end of the sewage lifting pump is provided with a feed pipe,

the sewage treatment device comprises a sewage treatment device, a sewage treatment device and a sewage treatment system, wherein the sewage treatment device comprises a feeding pipe, a sewage lifting pump, a cylinder, a vertical section feeding pipe and a water inlet pipe, wherein the feeding pipe comprises a horizontal section feeding pipe and a vertical section feeding pipe which are connected through a hose, the head end of the horizontal section feeding pipe is connected with the sewage lifting pump, the tail end of the vertical section feeding pipe is connected with the cylinder, the cylinder adopts a cylinder body with an open upper part and a closed lower;

the vertical section feeding pipe is installed on the sewage tank through a lifting device.

Preferably, a graduated scale is further arranged above the cylinder wall of the cylinder.

Preferably, elevating gear is including the clamp of fixed vertical section inlet pipe, and an electronic hydraulic push rod is connected respectively at the both ends of clamp, electronic hydraulic push rod all sets up on the effluent water sump.

Preferably, the outlet pipe is provided with an outlet valve.

Preferably, the diameters of the hose and the feeding pipe are the same, and two ends of the hose are respectively connected with the feeding pipe through flanges.

The utility model has the advantages that:

1. the utility model immerses the cylinder into the sewage to make the dirty oil at the top of the sewage flow into the cylinder through the upper edge of the cylinder, and then sucks the dirty oil in the cylinder through the zigzag gap at the bottom of the vertical section feeding pipe, thereby realizing the purpose of extracting the dirty oil;

2. the device adopts the hose connection between the horizontal section feeding pipe and the vertical section feeding pipe, can ensure that the vertical section feeding pipe independently moves up and down, so that the vertical section feeding pipe can adjust the depth of the vertical section feeding pipe extending into sewage along with the height of the sewage liquid level, more dirty oil can be extracted, and the recovery rate of the dirty oil can be improved;

3. the device can timely recover the sump oil enriched at the upper part of the sewage, reduce the material consumption of the production, reduce the sewage treatment cost, reduce the volatilization of the sump oil and ensure the safe production.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of a vertical section feed tube according to the present invention;

in the attached drawing, 1 sewage pool, 2 sewage lift pump, 3 inlet pipes, 301 horizontal segment inlet pipes, 302 vertical segment inlet pipes, 4 outlet pipes, 401 outlet valves, 5 hoses, 6 cylinders, 7 scales, 8 clamps and 9 electric hydraulic push rods.

Detailed Description

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

As shown in figure 1-2, a device for extracting dirty oil in water, which comprises a sewage pool 1, a sewage lifting pump 2 is arranged above the sewage pool 1, the outlet of the sewage lifting pump 2 is connected with a dirty oil recovery system through a discharge pipe 4, an inlet end of the sewage lifting pump 2 is provided with a feed pipe 3, the feed pipe 3 comprises a horizontal section feed pipe 301 and a vertical section feed pipe 302 which are connected through a hose 5, in order to ensure that the pipe diameter connection is tight and does not leak, the hose 5 is required to be consistent with the pipe diameter of the feed pipe, the two ends of the hose 5 are respectively connected with the feed pipe 3 through flanges, the horizontal section feed pipe 301 connected with the sewage lifting pump 2 is fixed by utilizing the hose 5, the vertical section feed pipe 302 can move up and down, the head end of the horizontal section feed pipe 301 is connected with the sewage lifting pump 2, the tail end of the vertical section feed pipe 302 is connected with a cylinder 6, The lower part of the cylinder is closed, the cross section of the tail end of the vertical feeding pipe 302 is serrated, and the serrated teeth at the tail end of the vertical feeding pipe 302 extend into the cylinder 6 and fixedly connect the tooth tip with the bottom of the cylinder 6 through welding.

The upper end of vertical section inlet pipe 302 still passes through elevating gear and installs on effluent water sump 1, elevating gear is including the clamp 8 of fixed vertical section inlet pipe 302, an electronic hydraulic push rod 9 is connected respectively at both ends about clamp 8, electronic hydraulic push rod 9 all sets up on effluent water sump 1, the push rod end welding clamp 8 of electronic hydraulic push rod 9, clamp 8 firmly blocks vertical section inlet pipe 302, reduce its vibration, electronic hydraulic push rod 9 promotes vertical removal from top to bottom of clamp 8, thereby drive the inlet pipe and reciprocate, in addition can in time adjust the height of vertical section inlet pipe 302 through electronic hydraulic push rod 9 according to the liquid level of effluent water sump 1, thereby the adjustment is rather than the cylinder 6 height of welding together, guarantee that the sump oil of 1 face enrichment can get into cylinder 6.

The graduated scale 7 is arranged above the cylinder wall of the cylinder 6, the graduated scale 7 adopts a steel ruler with the minimum scale being millimeter, the graduated scale 7 is used for measuring the depth of the cylinder 6 immersed in sewage, and the external oil detection ruler is used for measuring the height of sump oil, so that the upper part of the cylinder wall of the cylinder 6 is ensured to be only filled with oil and enter water less, and the water content of the extracted sump oil is reduced.

The outlet pipe 4 is provided with an outlet valve 401 for controlling the material outlet.

The height of the cylinder 6 can be matched and selected according to the outlet flow of the sewage lifting pump 2, the sewage lifting pump 2 can stably and continuously pump out dirty oil, the phenomenon that the sewage lifting pump 2 is evacuated to idle is avoided, the sawtooth contact space of the vertical section feeding pipe 302 and the cylinder 6 meets the inlet flow requirement of the pump, and cavitation erosion of the pump is prevented.

When the cylinder 6 is immersed in the sewage, the sump oil enriched at the upper part of the sewage flows into the cylinder 6 through the wall of the cylinder 6, at the moment, the sewage lifting pump 2 is started, and the sewage lifting pump 2 sucks the sump oil in the cylinder 6 through gaps between the saw teeth at the bottom of the vertical section feeding pipe 302. Staff in time adjusts the height of vertical section inlet pipe 302 according to suction degree and sump oil liquid level, adjusts the degree of depth that drum 6 immerges in the sewage, guarantees that the sump oil on effluent water sump 1 upper portion flows into in the drum 6.

Other technical features than those described in the specification are known to those skilled in the art.

Claims

1. A device for extracting dirty oil in water comprises a sewage pool (1), a sewage lifting pump (2) is arranged above the sewage pool (1), the outlet end of the sewage lifting pump (2) is connected with a dirty oil recovery system through a discharge pipe (4), and is characterized in that the inlet end of the sewage lifting pump (2) is provided with a feed pipe,

the feeding pipe (3) comprises a horizontal section feeding pipe (301) and a vertical section feeding pipe (302) which are connected through a hose (5), the head end of the horizontal section feeding pipe (301) is connected with the sewage lifting pump (2), the tail end of the vertical section feeding pipe (302) is connected with a cylinder (6), the cylinder (6) is a cylinder body with an open upper part and a closed lower part, the cross section of the tail end of the vertical section feeding pipe (302) is in a sawtooth shape, and the sawtooth at the tail end of the vertical section feeding pipe (302) extends into the cylinder (6) and is connected with the bottom of the cylinder (6);

the vertical section feeding pipe (302) is arranged on the sewage pool (1) through a lifting device.

2. The device for extracting the dirty oil in the water as claimed in claim 1, wherein a graduated scale (7) is further arranged above the wall of the cylinder (6).

3. The device for extracting the dirty oil in the water as claimed in claim 1, wherein the lifting device comprises a clamp (8) for fixing the vertical section feeding pipe (302), two ends of the clamp (8) are respectively connected with an electric hydraulic push rod (9), and the electric hydraulic push rods (9) are arranged on the sewage pool (1).

4. The device for extracting dirty oil from water as claimed in claim 1, wherein the outlet pipe (4) is provided with an outlet valve (401).

5. The device for extracting the dirty oil in the water as claimed in claim 1, wherein the diameter of the hose (5) and the diameter of the feeding pipe (3) are the same, and both ends of the hose (5) are respectively connected with the feeding pipe (3) through flanges.