Screening device for oil field additive production
By designing replaceable screens and hot air blowing components, the problems of low applicability of screening devices and dust leakage are solved, achieving a safe and efficient screening process.
Patent Information
- Application Number
- CN202520127873.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing screening devices cannot change the mesh size as needed, resulting in low applicability. After screening, the material is prone to agglomeration, and dust leakage is harmful to health.
A screening device with replaceable screens was designed, equipped with a sealing cover and a hot air blowing assembly. The sealing cover prevents dust leakage, and the hot air blowing assembly blows the dust into the material storage box, reducing the possibility of agglomeration.
The device allows for screen replacement as needed, preventing dust leakage, reducing material agglomeration, and improving the applicability and safety of the equipment.
Smart Images
Figure CN223888474U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oilfield additive production technical field, concretely relates to a screening device for oilfield additive production. BACKGROUND
[0002] Oilfield additive is a kind of chemical additive for improving oil and gas field exploitation efficiency and oil quality, they play an important role in oilfield production process, can improve the productivity of oil well, reduce production cost, protect environment and improve recovery rate simultaneously. Such as drilling fluid additive is used in drilling process with drilling mud, improves the effect of drilling mud, is beneficial to exploitation. And the diameter of oilfield additive needs to be controlled and screened during production, needs to use special screening device to screen.
[0003] The existing screening device has the following problems:
[0004] Only fixed screening according to the mesh size of screening net, so that the mesh size of screening net cannot be changed according to the required particle size, and further the applicability is not high;
[0005] The material screened is prone to caking when temporarily stored in storage tank, which is not conducive to the production of oilfield additive;
[0006] Dust is easily produced during screening, and dust leakage to external environment can affect the health of workers.
[0007] In view of the problems existing in the prior art, the utility model combines years of design and use experience in the relevant field, and designs and manufactures a screening device for oilfield additive production to overcome the above defects. UTILITY MODEL CONTENTS
[0008] For the problems existing in the prior art, the screening device for oilfield additive production provided by the utility model can replace the screening net with appropriate mesh size according to the size of screened particles, avoid dust leakage to the outside to affect the health of workers, and reduce the possibility of material caking.
[0009] In order to achieve the above purpose, the utility model adopts the following technical scheme: a screening device for oilfield additive production, comprising a screening box, a first screening plate is obliquely arranged on the inner wall upper portion of the screening box, a first U-shaped groove is arranged on the first screening plate, a first screen is arranged in the first U-shaped groove, a first discharge port is arranged at the bottom of the first screening plate, the first discharge port is located on the side wall of the screening box, a second screening plate is obliquely arranged below the first screening plate, a second U-shaped groove is arranged on the second screening plate, a second screen is arranged in the second U-shaped groove, a second discharge port is arranged at the bottom of the second screening plate, the second discharge port is located on the side wall of the screening box, and a material receiving hopper is connected below the second screening plate;
[0010] The top of the screening box is provided with a feeding hopper, and the feeding hopper is provided with a sealing cover; the first discharge port, the second discharge port and the receiving hopper are all connected with material storage boxes, the screening box is provided with a hot air blowing assembly, and the hot air blowing assembly can blow the dust in the screening box into the material storage boxes.
[0011] Preferably, the hot air blowing assembly comprises a hot air blower, the hot air blower is arranged outside the screening box, the air outlet end of the hot air blower is connected with an air outlet pipeline, one end of the air outlet pipeline away from the hot air blower is connected with two air ducts respectively, one end of the two air ducts away from the air outlet pipeline extends into the screening box, and the two air ducts are located on the upper side and the lower side of the first screening plate respectively.
[0012] Preferably, the three material storage boxes are all provided with air outlets, dustproof covers are rotatably arranged on the air outlets, air permeable membranes are arranged on the inner walls of the air outlets, and the dustproof covers are located outside the material storage boxes.
[0013] Preferably, the first screening plate and the second screening plate are oppositely inclined, and the bottom of the first screening plate is fixedly connected with the top of the second screening plate.
[0014] Preferably, the screening box is provided with a box door, and the first U-shaped groove and the second U-shaped groove are open towards the direction of the box door.
[0015] The top end of the first screen is lower than the top end of the box door, and the bottom end of the second screen is higher than the bottom end of the box door.
[0016] Preferably, the first screen is detachably arranged in the first U-shaped groove, the second screen is detachably arranged in the second U-shaped groove, the opening end of the first U-shaped groove and the opening end of the second U-shaped groove are both detachably provided with blocking strips, one side of the two blocking strips is respectively in contact with the first screen and the second screen, and the other side of the blocking strips is in contact with the box door.
[0017] Preferably, the two opposite inner walls of the first screening plate are both provided with first grooves, one end of the first grooves is flush with the opening end of the first U-shaped groove, and the two ends of the first screen are respectively connected with first fixing strips, and the second fixing strips are detachably arranged in the second grooves.
[0018] The two opposite inner walls of the second screening plate are both provided with second grooves, one end of the second grooves is flush with the opening end of the second U-shaped groove, and the two ends of the second screen are respectively connected with second fixing strips, and the second fixing strips are detachably arranged in the second grooves.
[0019] Preferably, it also includes a horizontally arranged first baffle, one end of which is detachably disposed in the first discharge port, and the other end of which passes through the material storage box connected to the first discharge port and extends outward, and the outward end of the first baffle is provided with a first handle.
[0020] A horizontally arranged second baffle, one end of which is detachably installed inside the second discharge port, and the other end of which passes through the material storage box connected to the second discharge port and extends outward, with a second handle provided at the outward end of the second baffle.
[0021] Preferably, the side wall of the screening box is provided with a plurality of third grooves, and the two ends of the first screening plate and the lower end of the second screening plate are supported on the side wall of the screening box through the third grooves; the top end of the third groove near the lower end of the first screening plate extends upward and communicates with the first discharge port, and the top end of the third groove near the lower end of the second screening plate extends upward and communicates with the second discharge port; the second screening plate is connected to the receiving hopper through an elastic tube.
[0022] The screening box is equipped with a motor located below the first screening plate. The output end of the motor is connected to a rotating shaft. A cam is provided at the end of the rotating shaft away from the motor. When the cam rotates, it can drive the first screening plate to sway up and down.
[0023] Preferably, the inner wall of the screening box is provided with a protective box, the motor is located inside the protective box, and the cam is located outside the protective box.
[0024] The advantages of this utility model are:
[0025] 1. This utility model features a sealing cover and a hot air blowing assembly. The sealing cover isolates the screening box from the outside environment, preventing dust from escaping from the feed hopper during screening. The hot air blowing assembly blows hot air into the screening box after screening, blowing the dust into the material storage box, preventing dust from remaining in the screening box and leaking to the outside from the feed inlet during the next screening. The hot air also increases the temperature inside the material storage box, thereby reducing the possibility of material agglomeration.
[0026] 2. This utility model features a first screen and a second screen that are detachably mounted on the first screening plate and the second screening plate, respectively, and a door is provided on the screening box. When the screen needs to be replaced, simply open the door and pull out the first screen and the second screen. The operation is simple and it is suitable for screening materials of different diameters. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of a screening device for the production of oilfield additives.
[0028] Figure 2This is a cross-sectional view of a screening device for oilfield additive production.
[0029] Figure 3 This is a schematic diagram of the first screening plate of a screening device for oilfield additive production.
[0030] Figure 4 This is a schematic diagram of the second screening plate of a screening device for oilfield additive production.
[0031] Figure 5 This is a side view of a screening device for oilfield additive production.
[0032] Figure 6 This is a schematic diagram of a material storage tank for a screening device used in the production of oilfield additives.
[0033] In the diagram: 1-Screening box, 2-Feed hopper, 3-Sealing cover, 4-First screening plate, 5-First U-shaped groove, 6-First screen, 7-First discharge port, 8-Second screening plate, 9-Second U-shaped groove, 10-Second screen, 11-Second discharge port, 12-First groove, 13-First fixing strip, 14-Second groove, 15-Second fixing strip, 16-First baffle, 17-Second baffle, 18-Hot air blowing assembly, 19-Motor, 20-Rotating shaft, 21-Cam, 22-Protective box, 23-Receiving hopper, 24-Material storage box, 25-Dust cover, 26-Breathable membrane, 27-Box door, 28-First handle, 29-Second handle, 30-Elastic tube, 31-Sealing strip, 181-Hot air blower, 182-Outlet duct, 183-Ventilation duct, 184-Nozzle. Detailed Implementation
[0034] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0035] like Figures 1-6 As shown, a screening device for oilfield additive production includes a screening box 1. A first screening plate 4 is inclinedly arranged on the upper part of the inner wall of the screening box 1. A first U-shaped groove 5 is provided on the first screening plate 4, and a first screen 6 is arranged inside the first U-shaped groove 5. A first discharge port 7 is provided at the bottom of the first screening plate 4, located on the side wall of the screening box 1. A second screening plate 8 is inclinedly arranged below the first screening plate 4. A second U-shaped groove 9 is provided on the second screening plate 8, and a second screen 10 is arranged inside the second U-shaped groove 9. A second discharge port 11 is provided at the bottom of the second screening plate 8, located on the side wall of the screening box 1. A receiving hopper 23 is connected below the second screening plate 8.
[0036] The first screening plate 4 and the second screening plate 8 are inclined in opposite directions, and the bottom of the first screening plate 4 is fixedly connected to the top of the second screening plate 8. The screening box 1 is equipped with a door 27. The openings of the first U-shaped groove 5 and the second U-shaped groove 9 face the door 27. The top of the first screen 6 is lower than the top of the door 27, and the bottom of the second screen 10 is higher than the bottom of the door 27. The first screen 6 is detachably installed in the first U-shaped groove 5, and the second screen 10 is detachably installed in the second U-shaped groove 9. Both the opening ends of the first U-shaped groove 5 and the second U-shaped groove 9 are detachably equipped with sealing strips 31. One side of each sealing strip 31 contacts the first screen 6 and the second screen 10 respectively, and the other side contacts the door 1. This invention allows for the replacement of the first screen 6 and the second screen 10 according to the diameter of the material being screened, eliminating the need to replace the screening device, simplifying operation, and reducing production costs.
[0037] Specifically, the first screening plate 4 has a first groove 12 on each of its two opposite inner sidewalls. One end of the first groove 12 is flush with the opening end of the first U-shaped groove 5. The two ends of the first screen 6 are respectively connected to a first fixing strip 13, which is detachably disposed in the first groove 12. The second screening plate 8 has a second groove 14 on each of its two opposite inner sidewalls. One end of the second groove 14 is flush with the opening end of the second U-shaped groove 9. The two ends of the second screen 10 are respectively connected to a second fixing strip 15, which is detachably disposed in the second groove 14. The first groove 12 guides the movement of the first fixing strip 13 to ensure the normal replacement of the first screen 6. The second groove 14 guides the movement of the second fixing strip 15 to ensure the normal replacement of the second screen 10. It also fixes the first screen 6 and the second screen 10 respectively.
[0038] A feed hopper 2 is located at the top of the screening box 1, and a sealing cover 3 is installed on the feed hopper 2. The sealing cover 3 prevents dust from leaking from the feed hopper 2 into the outside environment during screening, thus avoiding harm to workers' health and the environment. Material storage tanks 24 are connected to the first discharge port 7, the second discharge port 11, and the receiving hopper 23. A hot air blowing assembly 18 is installed on the screening box 1 to blow dust from inside the screening box 1 into the material storage tank 24. The material storage tank 24, connected to the receiving hopper 23, is located below the receiving hopper 23. Dust is easily generated during the screening process. If the dust is not treated, it can easily leak from the feed hopper 2 into the outside environment during the next feed, resulting in material waste. This invention uses a hot air blowing assembly 18 to blow hot air into the screening box 1, so that the residual dust in the screening box 1 enters the respective material storage box 24 through the first discharge port 7, the second discharge port 11 and the receiving hopper 23. This avoids dust leakage and reduces material waste without affecting the screening effect.
[0039] Specifically, the hot air blowing assembly 18 includes a hot air blower 181, which is located outside the screening box 1. The outlet end of the hot air blower 181 is connected to an outlet duct 182. Two ventilation ducts 183 are connected to the end of the outlet duct 182 furthest from the hot air blower 181, and the ends of the two ventilation ducts 183 furthest from the outlet duct 182 extend into the screening box 1. The two ventilation ducts 183 are located on the upper and lower sides of the first screening plate 4, respectively. Each ventilation duct 183 has a nozzle 184 at its end extending into the screening box 1. Preferably, the ventilation ducts 183 are positioned opposite the box door 27. Each of the three material storage boxes 24 has an air outlet, with a rotatable dust cover 25 mounted on each outlet. A breathable membrane 26 is provided on the inner wall of the air outlet, and the dust cover 25 is located outside the material storage box 24.
[0040] In this invention, the breathable membrane 26 on the material storage box 24 only allows air to pass through. Therefore, after hot air is introduced into the screening box 1 by the hot air blower 181, the hot air carries dust into the material storage box 24, and the original air in the material storage box 24 leaves through the breathable membrane 26. The temperature inside the material storage box 24 increases, reducing the possibility of the screened material agglomerating in the material storage box 24 and reducing the need for post-processing.
[0041] The system also includes a horizontally arranged first baffle 16, one end of which is detachably installed inside the first discharge port 7, and the other end of which passes through the material storage tank 24 connected to the first discharge port 7 and extends outward. A first handle 28 is provided at the outward end of the first baffle 16. A horizontally arranged second baffle 17 is also included, one end of which is detachably installed inside the second discharge port 11, and the other end of which passes through the material storage tank 24 connected to the second discharge port 11 and extends outward. A second handle 29 is provided at the outward end of the second baffle 17. This invention utilizes the first baffle 16 and the second baffle 17 to block the first discharge port 7 and the second discharge port 11 respectively during the screening process, preventing unscreened material from entering the material storage tank and affecting the screening effect.
[0042] The screening box 1 has several third grooves 32 on its side wall. The two ends of the first screening plate 4 and the lower end of the second screening plate 8 are attached to the side wall of the screening box 1 through the third grooves 32. The top of the third groove 32 near the lower end of the first screening plate 4 extends upward and communicates with the first discharge port 7. The top of the third groove 32 near the lower end of the second screening plate 8 extends upward and communicates with the second discharge port 11. The second screening plate 8 is connected to the receiving hopper 23 through an elastic tube. A motor 19 is installed inside the screening box 1, and the motor 19 is located below the first screening plate 4. The output end of the motor 19 is connected to a rotating shaft 20. A cam 21 is provided at the end of the rotating shaft 20 away from the motor 19. When the cam 21 rotates, it can drive the first screening plate 4 to shake up and down. A protective box 22 is provided on the inner wall of the screening box 1. The motor 19 is located inside the protective box 22, and the cam 21 is located outside the protective box 22.
[0043] Specifically, after screening, the motor 19 rotates, driving the rotating shaft 20 to rotate. The rotating shaft 20 then drives the cam 21 to rotate. During the rotation of the cam 21, the first screening plate 6 moves up and down within the third groove and the first discharge port 7, causing the second screening plate 8, connected to the first screening plate 4, to move up and down within the third groove and the second discharge port 10. This prevents material from clogging the screen holes and promotes the entry of material on the first screening plate 4 and the second screening plate 8 into their respective material storage boxes 24. The elastic tube 30 is retractable, so it does not hinder the shaking of the second screening plate 8.
[0044] Detailed operation process
[0045] First, open the box door 27 and remove the two sealing strips 31. Replace the first screen and the second screen 10 with screens of the required mesh size according to the material diameter. Close the box door 27. Open the sealing cover 3 and pour the material to be screened into the screening box 1 through the feed hopper 2. Close the sealing cover 3. After the material falls onto the first screening plate 4, it slides down the first screening plate 4. When passing through the first screen 6, materials with a diameter smaller than the mesh size of the first screen 6 fall onto the second screen 10, while the remaining material remains at the bottom of the first screening plate 4.
[0046] The material falling onto the second screen 10 slides down along the second screen 10. The material with a diameter smaller than the mesh size of the second screen 10 falls down into the receiving hopper 23 and then enters the material storage box 24 below the receiving hopper 23. The remaining material slides down along the second screening plate 8 and remains at the bottom of the second screening plate 8.
[0047] Open the dust covers 25 on the three material storage boxes 24, pull the first baffle 16 outward with the first handle 28, the first baffle 16 moves away from the first discharge port 7, and pull the second baffle 17 outward with the second handle 29, the second baffle 17 moves away from the second discharge port 11. Then start the motor 19, the motor 19 drives the rotating shaft 20 to rotate, the rotating shaft 20 drives the cam 21 to rotate, the cam 21 drives the first screening plate 6 to shake up and down during the rotation, the first screening plate 6 drives the second screening plate 8 connected to it to shake, thereby vibrating down the residual material on the first screen 6 and the second screen 10, and the material enters the respective material storage box 24 through the first discharge port 7 and the second discharge port 11 respectively;
[0048] Turn on the hot air blower 181. Hot air enters the air outlet duct 182 and the two ventilation ducts 183 sequentially from the air outlet of the hot air blower 181, and finally enters the screening box 1 from the nozzle 184. The hot air carries the dust above the first screening plate 4 into the material storage box 24 connected to the first discharge port 7. The dust between the first screening plate 4 and the second screening plate 8 enters the material storage box 24 connected to the second discharge port 11 along with the hot air. The dust in the receiving hopper 23 enters the material storage box 24 below the receiving hopper 23 along with the hot air, thus completing the material screening.
[0049] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.
Claims
1. A screening device for oilfield additive production, characterized in that, The system includes a screening box (1), a first screening plate (4) is inclinedly provided on the upper part of the inner wall of the screening box (1), a first U-shaped groove (5) is provided on the first screening plate (4), a first screen (6) is provided in the first U-shaped groove (5), a first discharge port (7) is provided at the bottom of the first screening plate (4), the first discharge port (7) is located on the side wall of the screening box (1), a second screening plate (8) is inclinedly provided below the first screening plate (4), a second U-shaped groove (9) is provided on the second screening plate (8), a second screen (10) is provided in the second U-shaped groove (9), a second discharge port (11) is provided at the bottom of the second screening plate (8), the second discharge port (11) is located on the side wall of the screening box (1), and a receiving hopper (23) is connected below the second screening plate (8). The top inlet of the screening box (1) is provided with a feeding hopper (2), and the feeding hopper (2) is provided with a sealing cover (3). The first discharge port (7), the second discharge port (11) and the receiving hopper (23) are all connected to a material storage box (24). The screening box (1) is provided with a hot air blowing assembly (18), which can blow the dust in the screening box (1) into the material storage box (24).
2. The screening device for oilfield additive production according to claim 1, characterized in that, The hot air blowing assembly (18) includes a hot air blower (181), which is located outside the screening box (1). The outlet end of the hot air blower (181) is connected to an outlet pipe (182). The end of the outlet pipe (182) away from the hot air blower (181) is connected to two ventilation pipes (183). The ends of the two ventilation pipes (183) away from the outlet pipe (182) extend into the screening box (1). The two ventilation pipes (183) are located on the upper and lower sides of the first screening plate (4). The ends of the two ventilation pipes (183) extending into the screening box (1) are each provided with a nozzle (184).
3. The screening device for oilfield additive production according to claim 1, characterized in that, Each of the three material storage boxes (24) is provided with an air outlet, and a dust cover (25) is rotatably provided on the air outlet. A breathable membrane (26) is provided on the inner side wall of the air outlet, and the dust cover (25) is located outside the material storage box (24).
4. A screening device for oilfield additive production according to claim 1, characterized in that, The first screening plate (4) and the second screening plate (8) are inclined in opposite directions, and the bottom of the first screening plate (4) is fixedly connected to the top of the second screening plate (8).
5. A screening device for oilfield additive production according to claim 1, characterized in that, The screening box (1) is provided with a door (27), and the openings of the first U-shaped groove (5) and the second U-shaped groove (9) face the door (27); The top of the first screen (6) is lower than the top of the box door (27), and the bottom of the second screen (10) is higher than the bottom of the box door (27).
6. A screening device for oilfield additive production according to claim 5, characterized in that, The first screen (6) is detachably disposed in the first U-shaped groove (5), and the second screen (10) is detachably disposed in the second U-shaped groove (9). Both the opening end of the first U-shaped groove (5) and the opening end of the second U-shaped groove (9) are detachably provided with sealing strips (31). One side of the two sealing strips (31) is in contact with the first screen (6) and the second screen (10) respectively, and the other side of the sealing strips (31) is in contact with the box door (27).
7. A screening device for oilfield additive production according to claim 6, characterized in that, The first screening plate (4) has a first groove (12) on each of its two opposite inner sidewalls. One end of the first groove (12) is flush with the opening end of the first U-shaped groove (5). The first screen (6) has a first fixing strip (13) connected to both ends. The first fixing strip (13) is detachably installed in the first groove (12). The second screening plate (8) has a second groove (14) on each of its two opposite inner sidewalls. One end of the second groove (14) is flush with the opening end of the second U-shaped groove (9). The two ends of the second screen (10) are respectively connected to a second fixing strip (15). The second fixing strip (15) is detachably installed in the second groove (14).
8. A screening device for oilfield additive production according to claim 1, characterized in that, It also includes a horizontally arranged first baffle (16), one end of which is detachably disposed in the first discharge port (7), and the other end of which passes through the material storage box (24) connected to the first discharge port (7) and extends outward. The first baffle (16) is provided with a first handle (28) at the outward end. A horizontally arranged second baffle (17) is provided. One end of the second baffle (17) is detachably installed in the second discharge port (11). The other end of the second baffle (17) passes through the material storage box (24) connected to the second discharge port (11) and extends to the outside. The outer end of the second baffle (17) is provided with a second handle (29).
9. A screening device for oilfield additive production according to claim 4, characterized in that, The screening box (1) has several third grooves (32) on its side wall. The two ends of the first screening plate (4) and the lower end of the second screening plate (8) are supported on the side wall of the screening box (1) through the third grooves (32). The top end of the third groove (32) near the lower end of the first screening plate (4) extends upward and communicates with the first discharge port (7). The top end of the third groove (32) near the lower end of the second screening plate (8) extends upward and communicates with the second discharge port (11). The second screening plate (8) is connected to the receiving hopper (23) through an elastic tube (30). The screening box (1) is equipped with a motor (19), which is located below the first screening plate (4). The output end of the motor (19) is connected to a rotating shaft (20). A cam (21) is provided at the end of the rotating shaft (20) away from the motor (19). When the cam (21) rotates, it can drive the first screening plate (4) to shake up and down.
10. A screening device for oilfield additive production according to claim 9, characterized in that, The inner wall of the screening box (1) is provided with a protective box (22), the motor (19) is located inside the protective box (22), and the cam (21) is located outside the protective box (22).