Drilling fluid dewatering screen

Abstract

The utility model relates to the technical field of petroleum, and discloses a drilling fluid dewatering screen which comprises a rack, a rotating roller is rotationally connected to the wall face of the rack, a motor used for driving the rotating roller is installed on the wall face of one side of the rack, a heating chamber is arranged at the top of the rack, and a fan is further arranged at the top of the rack. The transmission belts are in transmission connection with the wall surfaces of the rotating rollers, the rotating rollers are symmetrically arranged at the top of the rack, and the transmission belts are in transmission connection with the wall surfaces of the symmetrical rotating rollers; and the screening structure can screen out drilling fluid and broken stone in the ore at the top of the rack, the screening structure comprises a loading box, a stone carrying rod and a filter screen, the loading box is movably connected to the top of the rotating roller, the loading box is a hollow rectangular box with the top open, the stone carrying rod is movably arranged in a cavity of the loading box, and the filter screen is also movably arranged in the cavity of the loading box.

Description

Technical Field

[0001] The utility model belongs to the technical field of petroleum, and in particular relates to a drilling fluid dewatering screen. Background Art

[0002] Drilling fluid is the general term for various circulating fluids that meet the needs of drilling work with its multiple functions during the drilling process. Drilling fluid is the blood of drilling, also known as drilling flushing fluid.

[0003] The prior art (publication number: CN217794541U) discloses a petroleum drilling fluid dewatering screen, including a transmission mounting seat, a driven shaft, a motor drive shaft, a transmission belt, a connecting frame, a sliding guide rail, a material tray, a dewatering screen body, a heating component, a heating wire, an exhaust fan and a moisture-proof drying device.

[0004] The prior art places the mined ore on a material tray to heat and dehydrate it, and then removes water vapor to evaporate and dehydrate the drilling fluid on the surface of the ore. Although the prior art can achieve dehydration, the ores are usually of different sizes, and the prior art dehydrates ores of all sizes together. In this way, after the ore is dehydrated, it must be screened and the screened ore will be used. Therefore, the prior art is not convenient for processing the ore in the next process after dehydration.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the technical problem that the above-mentioned prior art is not convenient for further processing of the dehydrated ore, the basic concept of the technical solution adopted by the utility model is:

[0007] A drilling fluid dewatering screen, comprising:

[0008] A frame, a wall of the frame is rotatably connected with a roller, a motor for driving the roller is installed on one side wall of the frame, a heating chamber is arranged at the top of the frame, and a fan is also arranged at the top of the frame;

[0009] The transmission belt is connected to the wall of the roller, the roller is symmetrically arranged on the top of the frame, and the transmission belt is connected to the wall of the symmetrical roller;

[0010] The screening structure can screen out the drilling fluid and gravel in the ore separately on the top of the frame. The screening structure includes a loading box, a stone carrying rod and a filter. The loading box is movably connected to the top of the roller. The loading box is a hollow rectangular box with an open top. The stone carrying rod is movably arranged in the cavity of the loading box, and the filter is also movably arranged in the cavity of the loading box.

[0011] As a preferred embodiment of the utility model, the stone carrying rod is a rectangular rod, the filter screen is a mesh with a large number of openings on the wall, and the stone carrying rod is located directly above the filter screen.

[0012] As a preferred embodiment of the utility model, the screening structure also includes a base shaft, a filter chamber, a shift block, a limit groove and a filter frame. The base shaft is fixedly connected to the cavity of the loading box, the rear wall of the filter chamber is rotatably connected to the wall of the base shaft, the filter chamber is a hollow rectangular box with open top and bottom, the stone carrying rod is fixedly connected to the cavity of the filter chamber, the shift block is fixedly connected to the front wall of the filter chamber, the limit groove is opened at the top of the front wall of the loading box, and the filter frame is fixedly connected to the bottom of the filter chamber cavity.

[0013] As a preferred embodiment of the utility model, the shift block can be clamped in the limit groove, the filter frame is in the shape of a rectangular frame, the filter screen is fixedly connected in the filter frame cavity, the base axis is a semicircular bar, the filter chamber can rotate along the arc surface of the base axis, and multiple stone carrying rods are evenly fixedly connected in the filter chamber cavity.

[0014] As a preferred embodiment of the utility model, the screening structure also includes a card slot and a card block. The card slot is opened at the bottom of the loading box, and a plurality of card blocks are evenly and fixedly connected to the outer wall surface of the transmission belt. The card slot can adapt to the size of the card block.

[0015] As a preferred embodiment of the utility model, a processing chamber is also fixedly connected to the top of the frame, and rectangular rods are symmetrically fixedly connected to the bottom of the processing chamber on both sides, and the processing chamber is fixedly connected to the top of the frame through the rectangular rods. The loading box can pass through the bottom of the processing chamber and the top of the transmission belt. The processing chamber is a rectangular box with a hollow cavity and open top and bottom. A partition plate is fixedly connected to the middle section of the cavity of the processing chamber, and a ventilation rod is fixedly connected to the top of the processing chamber.

[0016] As a preferred embodiment of the utility model, the partition plate can divide the processing chamber cavity into two separate spaces, the heating chamber is fixedly connected to one of the processing chamber cavities, and a degassing chamber is fixedly connected to the other processing chamber cavity. The degassing chamber is an isosceles trapezoidal hollow box with an opening at the bottom, the top of the degassing chamber is fixedly connected to the fan, the ventilation rod is a rectangular rod shape, and multiple ventilation rods are evenly fixedly connected to the opening at the top of the processing chamber.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. By setting up a screening structure, after the drilling fluid and mud on the ore wall are dehydrated, ores of different sizes can be screened out to facilitate the next step of ore processing. The screening structure uses a filter chamber for loading ore and then uses the stone-carrying rod and filter frame in its cavity to screen the ore, so that ores of various sizes can be used for different processing techniques after the ore is dehydrated. Therefore, compared with the existing technology, this solution is more convenient for utilizing different ores after the ore is dehydrated.

[0019] 2. By providing two separate chambers in the processing chamber separated by a partition plate, the dehydration and water vapor removal efficiency can be improved through the formed closed space when the ore is loaded into the loading box for dehydration, thereby improving the working efficiency of the device.

[0020] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a three-dimensional diagram of the utility model;

[0023] Figure 2 This is a cross-sectional view of the processing chamber of the utility model;

[0024] Figure 3 This is an exploded schematic diagram of the loading box and the transmission belt of the utility model;

[0025] Figure 4 This is an exploded view of the loading box and filter chamber of the utility model;

[0026] Figure 5 This is a disassembly diagram of the filter frame of the utility model at the bottom of the filter chamber.

[0027] In the figure: 20, frame; 21, roller; 22, transmission belt; 23, heating chamber; 24, degassing chamber; 30, loading box; 31, slot; 32, block; 33, base shaft; 34, filter chamber; 35, shift block; 36, limit slot; 37, stone carrying rod; 38, filter frame; 39, filter screen; 40, processing chamber; 41, partition plate; 42, ventilation rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, a drilling fluid dewatering screen comprises: a frame 20, a roller 21 is rotatably connected to the wall of the frame 20, a motor for driving the roller 21 is installed on one side wall of the frame 20, a heating chamber 23 is arranged at the top of the frame 20, a fan is also arranged at the top of the frame 20, a motor for driving the fan to rotate is also installed on the top of the fan, a resistance heating structure for heating is installed at the bottom of the heating chamber 23, and the resistance heating structure is also electrically connected to a power source;

[0030] The transmission belt 22 is connected to the wall of the roller 21, and the roller 21 is symmetrically arranged on the top of the frame 20. The transmission belt 22 is connected to the wall of the symmetrical roller 21, and all motors and power supplies are electrically connected. This is an existing technology, so it will not be described here.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the screening structure can screen out the drilling fluid and gravel in the ore separately on the top of the frame 20. The screening structure includes a loading box 30, a stone carrying rod 37 and a filter screen 39. The loading box 30 is movably connected to the top of the roller 21. The loading box 30 is a hollow rectangular box with an open top. The stone carrying rod 37 is movably set in the cavity of the loading box 30, and the filter screen 39 is also movably set in the cavity of the loading box 30.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the stone carrying rod 37 is a rectangular rod, the filter screen 39 is a mesh with a large number of openings on the wall, the stone carrying rod 37 is located directly above the filter screen 39, and the screening structure also includes a base shaft 33, a filter chamber 34, a shift block 35, a limit groove 36 and a filter frame 38. The base shaft 33 is fixedly connected to the cavity of the loading box 30, and the rear wall surface of the filter chamber 34 is rotatably connected to the wall surface of the base shaft 33. The filter chamber 34 is a hollow rectangular box with open top and bottom, and the stone carrying rod 37 is fixedly connected to the filter chamber 34. In the cavity of the filter chamber 34, the shift block 35 is fixedly connected to the front wall of the filter chamber 34, the limit groove 36 is opened at the top of the front wall of the loading box 30, the filter frame 38 is fixedly connected to the bottom of the cavity of the filter chamber 34, the shift block 35 can be clamped in the limit groove 36, the filter frame 38 is in a rectangular frame shape, the filter screen 39 is fixedly connected in the cavity of the filter frame 38, the base shaft 33 is a semicircular bar, the filter chamber 34 can rotate along the arc surface of the base shaft 33, and a plurality of stone carrying rods 37 are evenly fixedly connected in the cavity of the filter chamber 34;

[0033] In specific use, first load the ore to be dehydrated into the cavity of the filter chamber 34 in the cavity of the loading box 30. When the ore enters the cavity of the filter chamber 34, the larger ore will stay on the top of the filter screen 39, and the smaller ore will pass through the adjacent filter screens 39 and fall to the top of the filter screen 39. At this time, the mud attached to the wall of the ore will pass through the filter screen 39 and flow to the bottom of the cavity of the loading box 30. After the ore is loaded, align the slot 31 at the bottom of the loading box 30 with the block 32 on the wall of the transmission belt 22, and then all the motors are connected. The power of the processing chamber 40 is turned on. When the power is turned on, the roller 21 is driven by the motor to rotate. The roller 21 drives the transmission belt 22 to transmit while rotating. The transmission belt 22 drives the loading box 30 to move toward the bottom of the processing chamber 40. When the loading box 30 moves to the bottom of the processing chamber 40, it will first align with the bottom of the heating chamber 23. At this time, the resistance heating structure at the bottom of the heating chamber 23 will heat up and heat the temperature in the loading box 30 cavity. When the loading box 30 cavity and the filter chamber 34 cavity are heated, the residual drilling fluid and mud on the ore wall will evaporate, and the loading box 30 will be heated. The mud at the bottom of the cavity will also evaporate. After the drilling fluid and mud evaporate, the transmission belt 22 will drive the loading box 30 to enter the bottom of the degassing chamber 24. The bottom of the degassing chamber 24 will cover the top of the loading box 30. The fan at the top of the degassing chamber 24 will suck out the water vapor in the cavity of the loading box 30 and the cavity of the filter chamber 34 when it rotates, and raise the temperature of the cavity and the wall of the loading box 30. After the water vapor is sucked out and the temperature of the wall of the loading box 30 drops, the transmission belt 22 will drive the loading box 30 to move out from the bottom of the processing chamber 40. At this time, the loading box 30 can be removed from the transmission belt 22, at this time, the ore in the chamber of the loading box 30 will be on the top of the filter screen 39 and the stone carrying rod 37 respectively due to their size. After the ore in the chamber of the loading box 30 is dehydrated, the ore on the top of the filter screen 39 is taken out and then the shifting block 35 is shifted to drive the filter chamber 34 to flip around the base axis 33 as the center of the circle. At this time, the ore on the top of the filter screen 39 will roll down from the adjacent stone carrying rods 37 due to the flipping of the filter chamber 34, thereby separating it from the filter chamber 34, and the evaporated mud at the bottom of the chamber of the loading box 30 will become mud and accumulate at the bottom of the chamber of the loading box 30;

[0034] To sum up, by setting up a screening structure, after the drilling fluid and mud on the ore wall are dehydrated, ores of different sizes can be screened out to facilitate the next step of processing of the ore. The screening structure uses the filter chamber 34 for loading the ore to screen the ore through the stone-carrying rod 37 and the filter frame 38 in its cavity, so as to facilitate the use of ores of various sizes for different processing techniques after the ore is dehydrated. Therefore, compared with the prior art, this solution is more convenient for utilizing different ores after the ore is dehydrated.

[0035] like Figure 1 and Figure 2As shown, the screening structure also includes a card slot 31 and a card block 32. The card slot 31 is opened at the bottom of the loading box 30. A plurality of card blocks 32 are evenly fixedly connected to the outer wall surface of the transmission belt 22. The card slot 31 can adapt to the size of the card block 32. The top of the frame 20 is also fixedly connected to a processing chamber 40. The bottom of the processing chamber 40 is symmetrically fixedly connected to rectangular rods. The processing chamber 40 is fixedly connected to the top of the frame 20 through the rectangular rods. The loading box 30 can pass through the bottom of the processing chamber 40 and the top of the transmission belt 22. The processing chamber 40 is hollow in the cavity and open at the top and bottom. A rectangular box, a partition plate 41 is fixedly connected to the middle section of the processing chamber 40, a ventilation rod 42 is fixedly connected to the top of the processing chamber 40, the partition plate 41 can divide the processing chamber 40 into two separate spaces, the heating chamber 23 is fixedly connected to one of the processing chambers 40, and a degassing chamber 24 is fixedly connected to the other chamber of the processing chamber 40, the degassing chamber 24 is an isosceles trapezoidal hollow box with an opening at the bottom, the top of the degassing chamber 24 is fixedly connected to the fan, the ventilation rod 42 is a rectangular rod, and a plurality of ventilation rods 42 are evenly fixedly connected to the top opening of the processing chamber 40;

[0036] In actual use, when the loading box 30 moves to the bottom of the heating chamber 23 and the degassing chamber 24, it will form a closed space with the bottom of the heating chamber 23 and the bottom of the degassing chamber 24, and the water vapor sucked out by the fan will move out of the processing chamber 40 cavity through the ventilation rod 42 at the top of the processing chamber 40;

[0037] In summary, by providing two separate chambers in the processing chamber 40 separated by the partition plate 41, the dehydration and water vapor removal efficiency can be improved through the formed enclosed space when the loading box 30 is loaded with ore for dehydration, thereby improving the working efficiency of the device.

[0038] Working principle: First, load the ore to be dehydrated into the cavity of the filter chamber 34 in the cavity of the loading box 30. When the ore enters the cavity of the filter chamber 34, the larger ore will stay on the top of the filter screen 39, and the smaller ore will pass through the adjacent filter screens 39 and fall to the top of the filter screen 39. At this time, the mud attached to the wall of the ore will pass through the filter screen 39 and flow to the bottom of the cavity of the loading box 30. After the ore is loaded, align the card slot 31 at the bottom of the loading box 30 with the card block 32 on the wall of the transmission belt 22. At this time, Turn on the power of all motors. When the power is turned on, the roller 21 will be driven by the motor to rotate. The roller 21 will drive the transmission belt 22 to transmit while rotating. The transmission belt 22 will drive the loading box 30 to move toward the bottom of the processing chamber 40. When the loading box 30 moves to the bottom of the processing chamber 40, it will first align with the bottom of the heating chamber 23. At this time, the resistance heating structure at the bottom of the heating chamber 23 will heat up and heat the temperature in the loading box 30 cavity. When the loading box 30 cavity and the filter chamber 34 cavity are heated, the residual ore wall The drilling fluid and mud will evaporate, and the mud at the bottom of the loading box 30 will also evaporate. After the drilling fluid and mud evaporate, the transmission belt 22 will drive the loading box 30 to enter the bottom of the degassing chamber 24. The bottom of the degassing chamber 24 will cover the top of the loading box 30. The fan at the top of the degassing chamber 24 will suck out the water vapor in the loading box 30 cavity and the filter chamber 34 cavity when rotating, and increase the temperature of the loading box 30 cavity and the wall surface. After the water vapor is sucked out and the wall surface temperature of the loading box 30 drops, the transmission belt 22 will drive the loading box 30 from The bottom of the processing chamber 40 is moved out, and the loading box 30 can be removed from the top of the transmission belt 22. At this time, the ore in the cavity of the loading box 30 will be located on the top of the filter screen 39 and the stone carrying rod 37 respectively due to its size. After the ore in the cavity of the loading box 30 is dehydrated, the ore on the top of the filter screen 39 is taken out and then the shifting block 35 is shifted to drive the filter chamber 34 to flip around the base axis 33. At this time, the ore on the top of the filter screen 39 will roll down from the adjacent stone carrying rods 37 due to the flipping of the filter chamber 34, thereby separating it from the filter chamber 34.

[0039] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A drilling fluid dewatering screen, characterized in that: include: A frame (20), a wall surface of the frame (20) is rotatably connected to a roller (21), a side wall surface of the frame (20) is equipped with a motor for driving the roller (21), a heating chamber (23) is arranged at the top of the frame (20), and a fan is also arranged at the top of the frame (20); A transmission belt (22), the transmission belt (22) is connected to the wall of the roller (21), the roller (21) is symmetrically arranged on the top of the frame (20), and the transmission belt (22) is connected to the wall of the symmetrical roller (21); A screening structure, which can screen out drilling fluid and crushed stone in the ore at the top of the frame (20), and comprises a loading box (30), a stone carrying rod (37) and a filter screen (39). The loading box (30) is movably connected to the top of the roller (21). The loading box (30) is a hollow rectangular box with an open top. The stone carrying rod (37) is movably arranged in the cavity of the loading box (30), and the filter screen (39) is also movably arranged in the cavity of the loading box (30).

2. The drilling fluid dewatering screen according to claim 1, characterized in that: The stone carrying rod (37) is a rectangular rod, the filter screen (39) is a mesh with a large number of openings on the wall, and the stone carrying rod (37) is located directly above the filter screen (39).

3. The drilling fluid dewatering screen according to claim 1, characterized in that: The screening structure further comprises a base shaft (33), a filter chamber (34), a shifting block (35), a limiting groove (36) and a filter frame (38); the base shaft (33) is fixedly connected in the cavity of the loading box (30); the rear wall surface of the filter chamber (34) is rotatably connected to the wall surface of the base shaft (33); the filter chamber (34) is a hollow rectangular box with both the top and the bottom open; the stone carrying rod (37) is fixedly connected in the cavity of the filter chamber (34); the shifting block (35) is fixedly connected to the front wall surface of the filter chamber (34); the limiting groove (36) is arranged at the top of the front wall surface of the loading box (30); and the filter frame (38) is fixedly connected to the bottom of the cavity of the filter chamber (34).

4. The drilling fluid dewatering screen according to claim 3, characterized in that: The shifting block (35) can be snapped into the limiting groove (36); the filter frame (38) is in the shape of a rectangular frame; the filter screen (39) is fixedly connected in the cavity of the filter frame (38); the base shaft (33) is in the shape of a semicircular strip; the filter chamber (34) can rotate along the arc surface of the base shaft (33); and a plurality of stone carrying rods (37) are evenly fixedly connected in the cavity of the filter chamber (34).

5. The drilling fluid dewatering screen according to claim 3, characterized in that: The screening structure further comprises a card slot (31) and a card block (32); the card slot (31) is arranged at the bottom of the loading box (30); a plurality of card blocks (32) are evenly and fixedly connected to the outer wall surface of the transmission belt (22); and the card slot (31) can adapt to the size of the card block (32).

6. The drilling fluid dewatering screen according to claim 1, characterized in that: The top of the frame (20) is also fixedly connected to a processing chamber (40), and rectangular rods are symmetrically fixedly connected to the bottom of the processing chamber (40). The processing chamber (40) is fixedly connected to the top of the frame (20) through the rectangular rods. The loading box (30) can pass through the bottom of the processing chamber (40) and the top of the transmission belt (22). The processing chamber (40) is a rectangular box with a hollow cavity and open top and bottom. A partition plate (41) is fixedly connected to the middle section of the cavity of the processing chamber (40), and a ventilation rod (42) is fixedly connected to the top of the processing chamber (40).

7. The drilling fluid dewatering screen according to claim 6, characterized in that: The partition plate (41) can divide the interior of the processing chamber (40) into two separate spaces. The heating chamber (23) is fixedly connected to one of the processing chambers (40). The other processing chamber (40) is fixedly connected to a degassing chamber (24). The degassing chamber (24) is an isosceles trapezoidal hollow box with an opening at the bottom. The top of the degassing chamber (24) is fixedly connected to a fan. The ventilation rod (42) is in the shape of a rectangular rod. A plurality of ventilation rods (42) are evenly fixedly connected to the opening at the top of the processing chamber (40).

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