Polymerization reaction device of fluid loss agent for oil well cement

Abstract

The utility model belongs to the technical field of fluid loss agents, and discloses a fluid loss agent polymerization reaction device for oil well cement, which comprises a hollow reaction box, a plurality of support legs are distributed on the bottom surface of the reaction box in a circumferential array, a feed pipe is mounted on the upper surface of the reaction box, a discharge pipe is arranged on the bottom surface of the reaction box, and the support legs are connected with the discharge pipe. A filter screen is arranged on the inner wall of the reaction box, a motor is fixedly arranged on the upper surface of the reaction box, an output shaft of the motor penetrates through the reaction box and is connected with the filter screen, and a stirring assembly used for stirring materials is arranged below the filter screen. The method has the effect of reducing the production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fluid loss additive, especially to a fluid loss additive polymerization reaction device for oil well cement. BACKGROUND

[0002] Fluid loss additive products can be divided into: granular materials and water-soluble polymers and organic materials, most fluid loss additive products are water-soluble polymers and organic materials, such products can be divided into modified natural products and synthetic polymers, when building an oil well, a fluid loss additive polymerization reaction device for oil well cement is usually needed.

[0003] A fluid loss additive polymerization reaction device for oil well cement is disclosed in the Chinese utility model patent with publication number CN221359881U, which comprises a main body mechanism and a processing mechanism, the processing mechanism is located inside the main body mechanism, the main body mechanism comprises a device main body, a device cover plate, a feeding pedestal, a cover plate handle, a vibration motor, a transmission rod, a screening plate, a discharge pipe one, a positioning plate, a telescopic rod, a movable spring and a butt joint plate, the device cover plate is movably installed at the upper end of the device main body, the feeding pedestal is fixedly installed at the upper end of the device cover plate, the cover plate handle is fixedly installed at the upper end of the device cover plate, and the vibration motor is fixedly installed at the inner right end of the device main body.

[0004] In view of the above related technology, the inventors believe that the following defects exist: the above device needs to start three motors at the same time for work, and in this process, the simultaneous work of the three motors increases the energy consumption, thereby increasing the production cost. UTILITY MODEL CONTENT

[0005] In order to solve the above problems, the utility model provides a fluid loss additive polymerization reaction device for oil well cement.

[0006] The above technical purpose of the utility model is realized through the following technical scheme: a fluid loss additive polymerization reaction device for oil well cement, comprising an internally hollow reaction box, a plurality of supporting legs are arranged in an array around the bottom surface of the reaction box, a feeding pipe is installed on the upper surface of the reaction box, a discharge pipe is arranged on the bottom surface of the reaction box, a filter screen is arranged on the inner wall of the reaction box, a motor is fixedly arranged on the upper surface of the reaction box, the motor output shaft penetrates through the reaction box and is connected with the filter screen, and a stirring assembly for stirring materials is arranged below the filter screen.

[0007] By adopting the above technical scheme, when the staff needs to process the product, the staff needs to put the product raw material into the reaction box through the feeding pipe. At this time, the staff needs to start the motor, and then the motor output shaft rotates, so that the filter screen and the stirring assembly rotate under the action of the motor output shaft, and then the product is filtered and stirred. Subsequently, when the processing is completed, the staff moves the processed product out of the reaction box through the discharge pipe, and in this process, only one motor can be completed, thereby reducing the production cost.

[0008] Further, the bottom surface of the filter screen is provided with two mutually symmetrical rotating grooves, the stirring assembly comprises a first stirring member fixedly arranged on the bottom surface of the filter screen, two second stirring members rotatably arranged in the two rotating grooves respectively, a first gear sleeved on the outer wall of the first stirring member, and a second gear sleeved on the outer wall of the second stirring member, the first gear and the second gear are mutually engaged, and the first gear and the second gear are fixedly connected with the first stirring member and the second stirring member respectively.

[0009] By adopting the above technical scheme, when the motor output shaft rotates, the filter screen rotates under the action of the motor output shaft, and then the first stirring member and the second stirring member rotate under the action of the filter screen, so that the first stirring member and the second stirring member stir the product, and in this process, when the first stirring member rotates, the first gear and the second gear are mutually engaged, so that the second gear rotates, and then the second stirring member rotates under the action of the second gear, thereby improving the stirring effect.

[0010] Further, the inner wall of the reaction box is provided with a circular groove, the filter screen is rotatably connected with the circular groove, a plurality of protrusions are circumferentially arranged on the inner bottom wall of the circular groove, and a plurality of grooves are circumferentially arranged on the bottom surface of the filter screen, and the protrusions and the grooves are matched with each other.

[0011] Further, the first connecting plate is fixedly arranged at the end of the motor output shaft, the second connecting plate is fixedly arranged on the upper surface of the filter screen, the bottom surface of the first connecting plate is fixedly provided with a sliding rod, and the sliding rod penetrates through the second connecting plate and the filter screen and is slidably connected with the second connecting plate and the filter screen.

[0012] By adopting the above technical scheme, when the filter screen rotates, the filter screen moves upward under the action of the protrusions and the grooves. Subsequently, when the protrusions and the grooves are opposite, the filter screen moves downward, and then the filter screen shakes, thereby improving the filtering effect, and in this process, when the filter screen moves upward or downward, the sliding rod and the second connecting plate slide relative to each other, and the sliding rod reduces the probability of shaking of the filter screen when it moves upward or downward, thereby improving the stability of the device.

[0013] Further, a first spring is sleeved on the outer wall of the slide rod, one end of the first spring is fixed with the bottom surface of the first connecting plate, and the other end of the first spring is fixed with the upper surface of the second connecting plate.

[0014] By adopting the above technical scheme, the first spring reduces the difficulty of the filter screen moving downward when the protrusion is opposite to the groove, thereby reducing the working difficulty of the staff.

[0015] Further, the bottom surface of the first stirring piece is provided with a limiting hole, and a limiting rod is fixedly arranged on the inner bottom wall of the reaction box and is in sliding connection with the limiting hole.

[0016] By adopting the above technical scheme, when the filter screen moves upward or downward, the first stirring piece moves upward or downward along with the filter screen, and in this process, the limiting rod reduces the probability of shaking of the first stirring piece, thereby improving the stability of the device.

[0017] Further, an annular groove is arranged on the inner wall of the rotating groove, an annular block is rotatably arranged in the annular groove, and the annular block is fixed with the second stirring piece.

[0018] By adopting the above technical scheme, the annular block limits the second stirring piece, thereby reducing the probability of mutual separation of the second stirring piece and the rotating groove, thereby improving the stability of the device.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. In the application, when the staff needs to process the product, the staff needs to put the product raw materials into the reaction box through the feeding pipe. At this time, the staff needs to start the motor, so that the motor output shaft rotates, thereby making the filter screen and the stirring assembly rotate under the action of the motor output shaft, and then making the product be filtered and stirred. Subsequently, when the processing is completed, the staff moves the processed product out of the reaction box through the discharge pipe, and in this process, only one motor is needed to complete the process, thereby reducing the production cost.

[0021] 2. In the application, when the motor output shaft rotates, the filter screen rotates under the action of the motor output shaft, thereby making the first stirring piece and the second stirring piece rotate under the action of the filter screen, so that the first stirring piece and the second stirring piece stir the product, and in this process, when the first stirring piece rotates, the first gear and the second gear are engaged with each other, thereby making the second gear rotate, so that the second stirring piece rotates under the action of the second gear, thereby improving the stirring effect.

[0022] 3、The filter screen moves upward under the action of the protrusion and the groove when the filter screen rotates, then moves downward when the protrusion and the groove are opposite, and then shakes, thereby improving the filtering effect, and in the process, the slide rod and the second connecting plate slide relative to each other when the filter screen moves upward or downward, the slide rod reduces the probability of shaking when the filter screen moves upward or downward, thereby improving the stability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a whole structure schematic diagram of the embodiment of the utility model;

[0024] Figure 2 is a cross-section structure schematic diagram of the stirring assembly in the embodiment of the utility model;

[0025] Figure 3 is Figure 2 enlarged structure schematic diagram of A in the embodiment of the utility model;

[0026] Figure 4 is a structure schematic diagram of the filter screen in the embodiment of the utility model.

[0027] In the figure: 1, reaction box; 11, support leg; 12, feed pipe; 13, discharge pipe; 14, filter screen; 15, motor; 2, rotating groove; 21, circular groove; 22, groove; 23, limiting hole; 24, annular groove; 3, stirring assembly; 31, first stirring piece; 32, second stirring piece; 33, first gear; 34, second gear; 4, protrusion; 5, first connecting plate; 51, second connecting plate; 52, slide rod; 6, first spring; 7, limiting rod; 8, annular block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application; obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments of the application, and all other embodiments obtained by those of ordinary skill in the art without creative labor on the basis of the embodiments in the application belong to the protection scope of the application.

[0029] As Figures 1-4As shown, the oil well cement fluid loss additive polymerization reaction device disclosed by the embodiment of the application comprises a reaction box 1, support legs 11, a feeding pipe 12, a discharging pipe 13, a filter screen 14, a motor 15, a stirring assembly 3, a protrusion 4, a first connecting plate 5, a second connecting plate 51, a sliding rod 52, a first spring 6, and a limiting rod 7. The reaction box 1 is a hollow cylindrical structure, and its axis is vertical. The support legs 11 are round rod structures, and their axes are vertical. The support legs 11 are arranged in a circumferential array on the bottom surface of the reaction box 1. The feeding pipe 12 is installed on the upper surface of the reaction box 1, and the discharging pipe 13 is arranged on the bottom surface of the reaction box 1. A control valve (not shown in the figure) for controlling the opening and closing of the discharging pipe 13 is arranged on the discharging pipe 13. The filter screen 14 is arranged on the inner wall of the reaction box 1, and its axis coincides with the axis of the reaction box 1. The motor 15 is fixedly arranged on the upper surface of the reaction box 1, and its axis coincides with the axis of the filter screen 14. The output shaft of the motor 15 penetrates through the reaction box 1 and is connected with the filter screen 14.

[0030] When the staff needs to process the product, the staff needs to put the product raw material into the reaction box 1 through the feeding pipe 12. At this time, the staff needs to start the motor 15, so that the output shaft of the motor 15 rotates, thereby making the filter screen 14 and the stirring assembly 3 rotate under the action of the output shaft of the motor 15, and then making the product filter and stir. Subsequently, when the processing is completed, the staff moves the processed product out of the reaction box 1 through the discharging pipe 13. In this process, only one motor 15 is used to complete the process, thereby reducing the production cost.

[0031] The bottom surface of the filter screen 14 is provided with two rotation grooves 2 which are symmetrical to each other. The stirring assembly 3 is arranged below the filter screen 14 and is used for stirring the material. The stirring assembly 3 comprises a first stirring piece 31, a second stirring piece 32, a first gear 33, and a second gear 34. The first stirring piece 31 is fixedly arranged on the bottom surface of the filter screen 14. The second stirring piece 32 is arranged in two and is rotatably arranged in the two rotation grooves 2, respectively. The first gear 33 is sleeved on the outer wall of the first stirring piece 31, and the second gear 34 is sleeved on the outer wall of the second stirring piece 32. The first gear 33 and the second gear 34 are engaged with each other, and the first gear 33 and the second gear 34 are fixedly connected with the first stirring piece 31 and the second stirring piece 32, respectively.

[0032] When the output shaft of the motor 15 rotates, the filter screen 14 rotates under the action of the output shaft of the motor 15, thereby making the first stirring piece 31 and the second stirring piece 32 rotate under the action of the filter screen 14, so that the first stirring piece 31 and the second stirring piece 32 stir the product. In this process, when the first stirring piece 31 rotates, the first gear 33 and the second gear 34 are engaged with each other, thereby making the second gear 34 rotate, so that the second stirring piece 32 rotates under the action of the second gear 34, thereby improving the stirring effect.

[0033] A circular groove 21 is formed on the inner wall of the reaction box 1, and the filter screen 14 is rotationally connected with the circular groove 21. The protrusions 4 are circumferentially arranged on the inner wall of the circular groove 21, and the filter screen 14 is circumferentially provided with a plurality of grooves 22 on the bottom surface, and the protrusions 4 and the grooves 22 are matched with each other.

[0034] The first connecting plate 5 is fixedly arranged at the end of the output shaft of the motor 15, the second connecting plate 51 is fixedly arranged on the upper surface of the filter screen 14, the slide rod 52 is fixedly arranged on the bottom surface of the first connecting plate 5, and the slide rod 52 penetrates through the second connecting plate 51 and the filter screen 14 and is slidably connected with the second connecting plate 51 and the filter screen 14.

[0035] When the filter screen 14 rotates, the filter screen 14 moves upward under the action of the protrusions 4 and the grooves 22. Then, when the protrusions 4 and the grooves 22 are opposite, the filter screen 14 moves downward, and then the filter screen 14 shakes, thereby improving the filtering effect. In this process, when the filter screen 14 moves upward or downward, the slide rod 52 and the second connecting plate 51 slide relative to each other, and the slide rod 52 reduces the probability of shaking of the filter screen 14 when it moves upward or downward, thereby improving the stability of the device.

[0036] The first spring 6 is sleeved on the outer wall of the slide rod 52, one end of the first spring 6 is fixedly connected with the bottom surface of the first connecting plate 5, and the other end of the first spring 6 is fixedly connected with the upper surface of the second connecting plate 51.

[0037] The first spring 6 reduces the difficulty of the filter screen 14 moving downward when the protrusions 4 and the grooves 22 are opposite, thereby reducing the working difficulty of the staff.

[0038] The bottom surface of the first stirring piece 31 is provided with a limiting hole 23, and the limiting rod 7 is fixedly arranged on the inner bottom wall of the reaction box 1 and is slidably connected with the limiting hole 23.

[0039] When the filter screen 14 moves upward or downward, the first stirring piece 31 moves upward or downward with the filter screen 14, and in this process, the limiting rod 7 reduces the probability of shaking of the first stirring piece 31, thereby improving the stability of the device.

[0040] In order to improve the stability of the device, an annular groove 24 is formed on the inner wall of the rotating groove 2, an annular block 8 is rotationally arranged in the annular groove 24, and the annular block 8 is fixedly connected with the second stirring piece 32. The annular block 8 limits the second stirring piece 32, thereby reducing the probability of separation of the second stirring piece 32 from the rotating groove 2, thereby improving the stability of the device.

[0041] The use principle of the polymerization reaction device for the fluid loss additive for oil well cement in the embodiment is as follows: when the staff needs to process the product, the staff needs to put the product raw material into the reaction box 1 through the feeding pipe 12. At this time, the staff needs to start the motor 15, and then the motor 15 output shaft rotates, so that the filter screen 14 and the stirring assembly 3 rotate under the action of the motor 15 output shaft, and then the product is filtered and stirred. Subsequently, when the processing is completed, the staff moves the processed product out of the reaction box 1 through the discharge pipe 13, and in this process, only one motor 15 is needed to complete, thereby reducing the production cost.

[0042] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solutions falling within the idea of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principles of the present application shall be considered as falling within the protection scope of the present application.

Claims

1. A polymerization apparatus for a fluid loss additive for oil well cement comprising an internally hollow reaction tank (1), characterized in that: The bottom surface of the reaction box (1) is provided with a plurality of support legs (11) arranged in a circumferential array, the upper surface of the reaction box (1) is provided with a feeding pipe (12), the bottom surface of the reaction box (1) is provided with a discharging pipe (13), the inner wall of the reaction box (1) is provided with a filter screen (14), the upper surface of the reaction box (1) is fixedly provided with a motor (15), the output shaft of the motor (15) penetrates the reaction box (1) and is connected with the filter screen (14), and a stirring assembly (3) for stirring materials is arranged below the filter screen (14).

2. The device for the polymerization reaction of a fluid loss additive for oil well cement according to claim 1, characterized by: The bottom surface of the filter screen (14) is provided with two rotation grooves (2) which are symmetrical to each other, the stirring assembly (3) comprises a first stirring piece (31) fixedly arranged on the bottom surface of the filter screen (14), two second stirring pieces (32) rotationally arranged in the two rotation grooves (2) respectively, a first gear (33) sleeved on the outer wall of the first stirring piece (31), and a second gear (34) sleeved on the outer wall of the second stirring piece (32), the first gear (33) and the second gear (34) are meshed with each other, and the first gear (33) and the second gear (34) are fixedly connected with the first stirring piece (31) and the second stirring piece (32) respectively.

3. The device for polymerization reaction of a fluid loss additive for oil well cement according to claim 1, characterized in that: The inner wall of the reaction box (1) is provided with a circular groove (21), the filter screen (14) is rotationally connected with the circular groove (21), the inner bottom wall of the circular groove (21) is provided with a plurality of protrusions (4) arranged in a circumferential array, and the bottom surface of the filter screen (14) is provided with a plurality of recesses (22) arranged in a circumferential array.

4. The device for polymerization reaction of a fluid loss additive for oil well cement according to claim 1, characterized by: The end of the output shaft of the motor (15) is fixedly provided with a first connecting plate (5), the upper surface of the filter screen (14) is fixedly provided with a second connecting plate (51), the bottom surface of the first connecting plate (5) is fixedly provided with a sliding rod (52), and the sliding rod (52) penetrates the second connecting plate (51) and the filter screen (14) and is slidably connected with the second connecting plate (51) and the filter screen (14).

5. The apparatus for the polymerization reaction of a fluid loss additive for oil well cement according to claim 4, characterized by: A first spring (6) is sleeved on the outer wall of the sliding rod (52), one end of the first spring (6) is fixedly connected with the bottom surface of the first connecting plate (5), and the other end of the first spring (6) is fixedly connected with the upper surface of the second connecting plate (51).

6. The device for polymerization reaction of a fluid loss additive for oil well cement according to claim 2, characterized by: The bottom surface of the first stirring piece (31) is provided with a limiting hole (23), and the inner bottom wall of the reaction box (1) is fixedly provided with a limiting rod (7) which is slidably connected with the limiting hole (23).

7. The device for polymerization reaction of a fluid loss additive for oil well cement according to claim 2, characterized by: The inner wall of the rotation groove (2) is provided with an annular groove (24), and an annular block (8) is rotationally arranged in the annular groove (24), and the annular block (8) is fixedly connected with the second stirring piece (32).

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