Oilfield sludge woven bag breaking device

Abstract

The present invention belongs to the technical field of waste oil sludge treatment, and in particular, relates to a bag breaking device for oilfield waste oil sludge woven bags. The frame (1) of the oilfield waste oil sludge woven bag breaking device is provided with at least two support plates (3), each support plate (3) is provided with a bag breaking knife (2), each support plate (3) has an electric push rod (4), the support plates (3) are driven by the electric push rod (4) to open and close along the frame (1) so that the waste oil sludge falls from between the support plates (3), and arc-shaped elastic rods (5) are provided between the support plates (3), and the arc-shaped elastic rods (5) are compressed and convex and relaxed and flattened with the opening and closing of the support plates (3). The present invention can improve the bag breaking efficiency of waste oil sludge woven bags, accelerate the separation of waste oil sludge and woven bags, and has a simple structure and is easy to process and operate.

Description

Technical Field

[0001] The invention belongs to the technical field of waste oil sludge treatment, and in particular relates to a bag breaking device for a woven bag of waste oil sludge in an oil field. Background Art

[0002] Sludge refers to solid waste generated during oil exploration, mining, refining, gathering and transportation, and has been included in the National List of Hazardous Wastes. With the expansion of oil mining and refining in my country, the output of sludge has increased, and the harm to the environment has become more and more serious. Sludge has a large output, a wide distribution, and is a hazardous waste that needs to be uniformly recovered and centrally treated. For scattered, small-scale sludge, woven bags are often used to hold the sludge, and then transported to sludge disposal stations for treatment. Especially in the development of offshore oil fields, most of the sludge generated during the exploitation of offshore oil fields is packaged in woven bags and transported to onshore disposal stations for treatment.

[0003] At the oily sludge disposal station, the oily sludge is discharged from the woven bags by manual bag breaking, and then the next treatment process is carried out. Manual bag breaking is labor-intensive, low in work efficiency, high in labor costs, and has certain risks. The working environment is poor, and the oily sludge has certain toxicity, which seriously affects the health of workers.

[0004] The problem of breaking woven bags containing oily sludge is a "bottleneck" problem in the disposal of oily sludge. There are few devices disclosed at home and abroad. Chinese patent document CN 104528078A discloses a bag breaking device for woven bags containing oily sludge and ground oil in oilfields. The device uses the dead weight of the bagged oily sludge to break the bag, and the oily sludge flows out along the guide groove of the blade under the action of gravity. The device avoids manual cutting of woven bags and improves the efficiency of bag breaking. However, since the bagged oily sludge is usually semi-solid and the viscosity of the sludge is relatively high, there is a situation where the oily sludge cannot flow out after the bag is broken. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an oilfield sludge woven bag breaking device, which is suitable for unloading semi-solid sludge with high viscosity from the woven bag.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] The invention discloses a bag breaking device for oilfield sludge woven bags, comprising a frame, a bag breaking knife being arranged on the frame, at least two support plates being arranged on the frame, each support plate being provided with a bag breaking knife, and each support plate being provided with an electric push rod. The support plates are driven by the electric push rod to open and close along the frame so that the sludge falls from between the support plates.

[0008] As an improvement, an arc-shaped elastic rod is arranged between the support plates, and the arc-shaped elastic rod moves in a compression upward convexity and a relaxation flattening movement as the support plates open and close.

[0009] As a further improvement, the arc-shaped elastic rod is located on the side of the bag breaking knife.

[0010] As an improvement, the bag breaking knife comprises a knife tip and a knife edge.

[0011] As an improvement, when the arc-shaped elastic rod is compressed and convex, the top of the arc-shaped elastic rod is lower than the top of the bag breaking knife.

[0012] As a further improvement, a support column is arranged on the support plate.

[0013] As a further improvement, the support column has a conical top, and the height of the support column is lower than the height of the bag breaking knife.

[0014] As a further improvement, mud discharge holes are provided on the support plate.

[0015] The beneficial effects of the present invention are:

[0016] In order to solve the problem of breaking woven bags of oilfield oily sludge, the existing bag breaking equipment is upgraded. Under the action of gravity and downward impact, the tip of the bag breaking knife first punctures the woven bag containing oily sludge, causing the oily sludge to flow out along the bag breaking knife, thus achieving initial bag breaking. With the opening and closing reciprocating motion of the electric push rod, the woven bag is further enlarged under the tearing and cutting action of the support column and the blade of the bag breaking knife, achieving further bag breaking, so that the oily sludge has a larger outflow channel. In addition, the opening and closing reciprocating motion of the support plate rhythmically squeezes the entire bag of oily sludge, which is conducive to the rapid separation of the woven bag and the oily sludge. The opening and closing reciprocating motion of the support plate is also conducive to the oily sludge falling on the support plate from the mud discharge hole.

[0017] The arc-shaped elastic rod has two functions. One is that the compression upward convex movement and the relaxation flattening movement respectively push and loosen the oil sludge at the rupture and pull out the mud, which is conducive to the smooth leakage of the oil sludge; the other is to block the woven bag and prevent it from falling between the support plates.

[0018] In summary, the present invention can improve the bag breaking efficiency of the oily sludge woven bag, accelerate the separation of the oily sludge and the woven bag, and has a simple structure and is easy to process and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a top view of the present invention, in which the support plates are in a closed state;

[0020] Figure 2 This is a top view of the present invention, in which the support plates are in an open state;

[0021] Figure 3 It is a structural schematic diagram of the support plate of the present invention;

[0022] Figure 4 for Figure 3 Sectional view along AA direction.

[0023] In the figure: 1. frame; 2. bag breaking knife; 3. support plate; 4. electric push rod; 5. arc elastic rod; 6. support column; 7. mud discharge hole. DETAILED DESCRIPTION

[0024] Example 1

[0025] like Figure 1 , Figure 2 As shown, the oilfield sludge woven bag breaking device of the present invention comprises a frame 1, on which a plurality of support plates 3 are arranged, and slide rail grooves are provided on both sides of the support plates 3 so that the support plates 3 can slide along the frame 1 in a plane. In this embodiment, there are two support plates 3, each of which is driven by an electric push rod 4. The support plates 3 are driven by the electric push rod 4 to open and close along the frame 1 so that the sludge falls from between the support plates 3. Mud discharge holes 7 are provided on the support plates 3, and most of the sludge falls from the space between the support plates 3, and the sludge falling on the support plates 3 falls from the mud discharge holes 7. Since the support plates 3 are always in an opening and closing reciprocating motion, the sludge can fall from the mud discharge holes 7 more smoothly.

[0026] like Figure 3 , Figure 4 As shown, each support plate 3 is provided with a bag-breaking knife 2 and a support column 6. The bag-breaking knife 2 includes a knife tip and a blade, and the height of the bag-breaking knife 2 is 20-30 cm. A support column 6 is provided on each of the left and right sides of the bag-breaking knife 2, and the height of the support column 6 is 5-10 cm lower than the height of the bag-breaking knife 2. The support column 6 has a conical top, and the support column is composed of a conical section and a column section, and the height of the conical section accounts for 10%-20% of the total height of the support column. After the support column 6 penetrates into the woven bag, it is conducive to tearing the woven bag horizontally, so that the tear of the woven bag is further enlarged, which is conducive to the rapid separation of the woven bag and the dirty oil sludge.

[0027] like Figure 1 , Figure 2 As shown, an arc-shaped elastic rod 5 is arranged between the support plates 3, and the arc-shaped elastic rod 5 can be a steel wire, or a steel wire wrapped with rubber. The arc-shaped elastic rod 5 moves in compression and convexity and relaxation and flattening with the opening and closing of the support plates 3. When the arc-shaped elastic rod 5 is compressed and convex, the top of the arc-shaped elastic rod 5 is lower than the top of the bag-breaking knife 2. The bag-breaking knife 2 is located in the middle position of the device, and the arc-shaped elastic rod 5 is located on the side of the bag-breaking knife 2, which is conducive to the arc-shaped elastic rod 5 protruding into the rupture, realizing the function of loosening the oil sludge in the bag and the function of pushing the oil sludge out.

Claims

1. An oilfield sludge woven bag breaking device, comprising a frame (1), on which a bag breaking knife (2) is arranged, characterized in that: At least two support plates (3) are arranged on the frame (1), each support plate (3) is provided with a bag breaking knife (2) and a support column (6) for piercing the woven bag, each support plate (3) has an electric push rod (4), and the support plate (3) is driven by the electric push rod (4) to make an opening and closing reciprocating motion along the frame (1) so that the dirty oil sludge falls from between the support plates (3); an arc-shaped elastic rod (5) is arranged between the support plates (3), the arc-shaped elastic rod (5) is located on the side of the bag breaking knife (2), and the arc-shaped elastic rod (5) moves in a compressed upward convex and relaxed flat manner as the support plates (3) open and close; when the arc-shaped elastic rod (5) is compressed and convex, the top of the arc-shaped elastic rod (5) is lower than the top of the bag breaking knife (2); the support column (6) has a conical top, and the height of the support column (6) is lower than the height of the bag breaking knife (2).

2. The oilfield sludge woven bag breaking device according to claim 1, characterized in that: The bag breaking knife (2) comprises a knife tip and a knife blade.

3. The oilfield sludge woven bag breaking device according to claim 1, characterized in that: The support plate (3) is provided with a mud discharge hole (7).

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