A device for treating waste mud from oil drilling

Abstract

The present invention is applicable to the technical field of waste mud treatment and provides a device for treating waste mud from oil drilling. The device comprises a forming cylinder, the forming cylinder being provided with a feed pipe, the forming cylinder being fixedly connected to a preheating cylinder via a fixing frame, the preheating cylinder being connected to a waste trough, the preheating cylinder being provided with a pushing mechanism for pushing and drying the mud, the bottom of the preheating cylinder being provided with a partitioning mesh plate, the preheating cylinder being provided with a dispersion mechanism capable of dispersing and drying the mud, and the preheating cylinder being provided with an airflow circulation component for collecting water vapor. In the present invention, negative pressure suction accelerates moisture migration in the core area, the electric heating network suppresses cracking in the middle of the mud, the extrusion force strengthens edge dehydration, and the rotating filter sleeve dynamically prevents blockage, thereby improving filtration efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of waste mud treatment, and in particular relates to a device for treating waste mud from oil drilling. Background Art

[0002] In oil drilling operations, waste mud contains a large amount of water, drill cuttings and chemical additives. Traditional treatment methods have the following drawbacks:

[0003] Insufficient pretreatment: When the slurry directly enters the drying equipment, due to its high viscosity and complex composition, it is easy to cause uneven drying, high energy consumption, and large particles of waste are easy to clog the equipment;

[0004] Inefficient solid-liquid separation: Conventional extrusion filtration is difficult to completely separate the water in the colloidal mud, and the residual water affects the subsequent solidification and molding;

[0005] Low resource recovery rate: The dried mud blocks are easy to break and difficult to form complete blocks, which is not conducive to transportation or resource utilization.

[0006] Existing equipment lacks targeted pretreatment, efficient dispersion and negative pressure collaborative drying mechanisms, and an integrated processing device is urgently needed to solve the above problems. Summary of the Invention

[0007] The purpose of the embodiments of the present invention is to provide a device for treating waste mud from oil drilling, aiming to solve the problem that existing equipment lacks targeted pretreatment, efficient dispersion and negative pressure coordinated drying mechanisms.

[0008] The present invention is achieved by providing a device for processing waste mud from oil drilling, comprising a forming cylinder, the forming cylinder being provided with a feed pipe, the forming cylinder being fixedly connected to a preheating cylinder via a fixing frame, the preheating cylinder being connected to a waste trough, the preheating cylinder being provided with a pushing mechanism for pushing and drying the mud, a partitioning mesh plate being provided at the bottom of the preheating cylinder, a dispersing mechanism being provided in the preheating cylinder, the dispersing mechanism being capable of dispersing and drying the mud, and an air circulation component being provided in the preheating cylinder for collecting water vapor;

[0009] A push plate is vertically slidably connected to the forming cylinder, and a No. 2 electric telescopic rod is fixedly connected to the push plate and the bottom surface of the forming cylinder. The push plate and the forming cylinder form a closed water collecting chamber, and a filter assembly is provided in the middle position of the forming cylinder. The filter assembly can filter and heat the mud in the forming cylinder, and the water collecting chamber is provided with a No. 2 air pump. The fixed frame is connected to a pressurizing mechanism, and the pressurizing mechanism can extrude and dry the mud in the forming cylinder. A material guide trough is provided at the bottom of the partition mesh plate, and a hose is connected between the material guide trough and the pressurizing mechanism.

[0010] According to a further technical solution, the pushing mechanism includes a No. 1 motor, a sleeve, a pushing blade and a filter screen;

[0011] The No. 1 motor is fixedly connected to the preheating cylinder, and the output shaft of the No. 1 motor is fixedly connected to a sleeve, and the sleeve is spirally provided with a pushing blade and a filter screen.

[0012] According to a further technical solution, the dispersion mechanism includes a dispersion sleeve, a baffle, a water-absorbing material block and a guide hole;

[0013] The dispersion sleeve is rotatably connected to the inner wall of the preheating cylinder, a heating pad is embedded in the inner wall of the preheating cylinder, and the heating pad is in contact with the dispersion sleeve. A plurality of baffles are provided on the inner side of the dispersion sleeve, and the baffles are all inclined toward the feeding direction, and water-absorbing material blocks are provided in the baffles. A guide hole is provided on the dispersion sleeve on one side of the baffle, and a plurality of protrusions are provided on the side of the dispersion sleeve facing the inner wall of the preheating cylinder.

[0014] According to a further technical solution, a No. 2 motor is fixedly connected to the outer wall of the preheating cylinder, and a gear is fixedly connected to the output shaft of the No. 2 motor, and the gear is engaged with the gear ring on the outer wall of the dispersion sleeve.

[0015] According to a further technical solution, the air circulation assembly includes a No. 1 air pump, a filter box, a strip groove and an air guide pipe;

[0016] The outer wall of the preheating cylinder is fixedly connected to an air pump No. 1, the air inlet pipe of the air pump is rotatably connected to one end of the sleeve, a plurality of through holes are provided on the sleeve, the air pump No. 1 is connected to a filter box, and an absorbent material is stored in the filter box. The filter box is fixedly connected to the outer end face of the preheating cylinder, and a strip groove is provided on the inner wall of the preheating cylinder, and the strip groove is opposite to the dispersion sleeve. An air guide pipe is connected between the filter box and the strip groove.

[0017] According to a further technical solution, the pressurizing mechanism includes a No. 1 electric telescopic rod, a pressurizing plate and an electric heating jacket;

[0018] The No. 1 electric telescopic rod is fixedly connected to the fixed frame through a fixed plate. The telescopic end of the No. 1 electric telescopic rod is fixedly connected to a pressure plate. The pressure plate is connected to an electric heating sleeve. The inner wall of the electric heating sleeve is conical. A solenoid valve is provided at the connection between the No. 1 electric telescopic rod and the hose.

[0019] According to a further technical solution, the filter assembly includes a filter sleeve, a third motor and a gear transmission pair;

[0020] The filter sleeve is rotatably connected to the rotating seat inside the water collecting chamber, and the bottom of the forming cylinder is fixedly connected to the No. 3 motor. A gear transmission pair is provided between the No. 3 motor and the filter sleeve, and the gear transmission pair slides and passes through the push plate. The filter sleeve is provided with a filter screen at a section on the upper side of the push plate, and an electric heating network is provided inside the filter screen.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] Efficient pretreatment: The combination of the rotating baffle and the vibrating mesh plate of the dispersion mechanism realizes multi-stage cutting and uniform preheating of the mud, solving the problem of accumulation of viscous materials; the air circulation system realizes water recovery and regeneration of water-absorbing material blocks; solid-liquid separation is thorough: negative pressure-extrusion-heating triple technology: negative pressure suction accelerates the migration of moisture in the core area, the electric heating network suppresses cracking in the middle of the mud, and the extrusion pressure strengthens the edge dehydration; the rotating filter sleeve is dynamically anti-blocking and the filtration efficiency is improved; the molding quality is optimized: the heat gradient is distributed when the conical electric heating sleeve is pressurized, and the inside and outside of the mud block are dried synchronously, which improves the anti-crushing strength of the mud block.

[0023] Since all baffles are tilted toward the feed direction, not only the contact area with the mud is increased, but also with the thrust of the pushing blades, the baffles can generate a downward extrusion force on the mud. On the one hand, under the action of the extrusion force, the water-absorbing blocks in the baffles absorb the moisture in the mud. On the other hand, when the viscosity of the mud is relatively high, it can efficiently pass through the guide holes and the separation mesh without accumulation. Under the meshing action of the gear and the ring gear, the No. 2 motor drives the dispersion sleeve to rotate. When the dispersion sleeve rotates, the dispersion sleeve drives all the protrusions on its back to move, and all the protrusions push the separation mesh to vibrate, further improving the segmentation effect of the mud, so that the mud can be fully mixed and the humidity is uniform when it enters the forming cylinder.

[0024] On the one hand, the stirring of all baffles can increase the mixing effect of the mud. When the baffle near the bottom of the preheating cylinder moves to the upper side, the air circulation component can perform hot air drying on the water-absorbing material blocks in each baffle, thereby increasing the water absorption efficiency of the water-absorbing material blocks. On the other hand, when waste material in the mud is stuck in each row of baffles, the baffle near the bottom of the preheating cylinder drives the waste material to move to the air outlet position of the air circulation component. At this time, under the action of the wind force of the air circulation component, the stuck waste material can be separated from the baffle. Furthermore, since all baffles are arranged at an angle, the baffle can guide the wind force of the air circulation component, so that the wind force of the air circulation component dries and unclogs the filter screen.

[0025] On the one hand, at this time, negative pressure suction is applied to the mud in the middle of the forming cylinder and it is heated, which can make the mud in the middle of the forming cylinder dry and agglomerate quickly, avoiding the mud in the middle from breaking and becoming difficult to form under the side pressure of the pressurizing mechanism; on the other hand, under the negative pressure suction of the electric heating network and the No. 2 air pump, the mud in the forming cylinder can quickly discharge water into the water collecting chamber, while effectively improving the integrity of the mud agglomerates, which is convenient for the subsequent use of the mud blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 Schematic diagram of the internal structure of the preheating cylinder in the present invention;

[0028] Figure 3 This is a schematic diagram of the connection between the preheating cylinder and the air circulation assembly in the present invention;

[0029] Figure 4 It is a structural diagram of the pushing mechanism in the present invention;

[0030] Figure 5 Schematic diagram of the structure of the dispersion mechanism in the present invention;

[0031] Figure 6 Schematic diagram of the interior of the forming cylinder in the present invention.

[0032] In the figure: 1, forming cylinder; 2, fixing frame; 3, preheating cylinder; 4, pushing mechanism; 41, No. 1 motor; 42, sleeve; 43, pushing blade; 44, filter screen; 5, dispersion mechanism; 51, dispersion sleeve; 52, baffle; 53, water-absorbing material block; 54, guide hole; 55, bump; 56, No. 2 motor; 57, gear; 58, gear ring; 6, air circulation assembly; 61, No. 1 air pump; 62, filter box ; 63. Strip groove; 64. Air guide tube; 7. Push plate; 8. Pressurizing mechanism; 81. No. 1 electric telescopic rod; 82. Pressurizing plate; 83. Electric heating jacket; 9. Filter assembly; 91. Filter jacket; 92. No. 3 motor; 93. Gear transmission pair; 10. No. 2 electric telescopic rod; 11. Water collecting chamber; 12. No. 2 air pump; 13. Feed pipe; 14. Partition mesh plate; 15. Material guide trough; 16. Hose; 17. Waste trough. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0035] like Figures 1-6 FIG. 1 is a diagram showing an apparatus for treating waste mud from oil drilling according to an embodiment of the present invention, comprising a forming cylinder 1 provided with a feed pipe 13. The forming cylinder 1 is fixedly connected to a preheating cylinder 3 via a fixing frame 2. The preheating cylinder 3 is connected to a waste trough 17. The preheating cylinder 3 is provided with a pushing mechanism 4 for pushing and drying the mud. A partitioning mesh plate 14 is provided at the bottom of the preheating cylinder 3. The preheating cylinder 3 is provided with a dispersion mechanism 5 capable of dispersing and drying the mud. The preheating cylinder 3 is provided with an air circulation component 6 for collecting water vapor.

[0036] A push plate 7 is vertically slidably connected to the forming cylinder 1, and a No. 2 electric telescopic rod 10 is fixedly connected to the push plate 7 and the bottom surface of the forming cylinder 1. The push plate 7 and the forming cylinder 1 construct a closed water collecting chamber 11, and a filter component 9 is provided in the middle position of the forming cylinder 1. The filter component 9 can filter and heat the mud in the forming cylinder 1, and the water collecting chamber 11 is provided with a No. 2 air pump 12. The fixed frame 2 is connected to a pressurizing mechanism 8, and the pressurizing mechanism 8 can extrude and dry the mud in the forming cylinder 1. A material guide trough 15 is provided at the bottom of the partition mesh plate 14, and a hose 16 is connected between the material guide trough 15 and the pressurizing mechanism 8.

[0037] In this embodiment, the slurry is introduced into the preheating cylinder 3 through the feeding pipe 13. At this time, the pushing mechanism 4 is started, and the pushing mechanism 4 can push the slurry into the preheating cylinder 3 and dry it. When the slurry contacts the dispersing mechanism 5, the dispersing mechanism 5 is started, and the dispersing mechanism 5 can disperse and dry the slurry, thereby improving the drying efficiency of the slurry. After the slurry is preheated, the slurry is dispersed by the partition mesh 14 and enters the forming cylinder 1 under the guidance of the guide trough 15 and the hose 16, while the waste in the slurry enters the waste trough 17 under the push of the pushing mechanism 4.

[0038] When the mud enters the pretreatment steps of preheating, impurity removal and mixing and enters the forming cylinder 1, the pressurizing mechanism 8 is started to pressurize the mud in the forming cylinder 1, so that the moisture in the mud is collected into the water collecting chamber 11 through the filtering component 9. The mud is dried and agglomerated under the joint heating action of the pressurizing mechanism 8 and the filtering component 9, which is convenient for the subsequent utilization and processing of the mud blocks.

[0039] like Figure 4 As shown, as a preferred embodiment of the present invention, the pushing mechanism 4 includes a No. 1 motor 41, a sleeve 42, a pushing blade 43 and a filter plate 44;

[0040] The No. 1 motor 41 is fixedly connected to the preheating cylinder 3 , and the output shaft of the No. 1 motor 41 is fixedly connected to a sleeve 42 , and the sleeve 42 is spirally provided with a pushing blade 43 and a filter screen plate 44 .

[0041] In this embodiment, the No. 1 motor 41 is started, and the No. 1 motor 41 drives the sleeve 42 to rotate. The sleeve 42 drives the pushing blade 43 and the filter screen 44 to rotate. The pushing blade 43 pushes the mud into the preheating cylinder 3. In the process of the pushing blade 43 pushing the mud, the mud is dispersed in the dispersion mechanism 5. During this process, the filter screen 44 can filter and push the waste in the mud.

[0042] like Figure 5 As shown in FIG. 5 , as a preferred embodiment of the present invention, the dispersion mechanism 5 includes a dispersion sleeve 51 , a baffle 52 , a water-absorbing material block 53 and a guide hole 54 ;

[0043] The dispersion sleeve 51 is rotatably connected to the inner wall of the preheating cylinder 3. A heating pad is embedded in the inner wall of the preheating cylinder 3, and the heating pad is in contact with the dispersion sleeve 51. A plurality of baffles 52 are provided on the inner side of the dispersion sleeve 51. The baffles 52 are all inclined toward the feeding direction, and a water-absorbing material block 53 is provided in each of the baffles 52. A guide hole 54 is provided on the dispersion sleeve 51 on one side of the baffle 52. A plurality of protrusions 55 are provided on the side of the dispersion sleeve 51 facing the inner wall of the preheating cylinder 3.

[0044] A second motor 56 is fixedly connected to the outer wall of the preheating cylinder 3 , and a gear 57 is fixedly connected to the output shaft of the second motor 56 . The gear 57 is engaged with a gear ring 58 on the outer wall of the dispersion sleeve 51 .

[0045] In this embodiment, as the pushing blades 43 push the mud into the preheating cylinder 3, the filter screen 44 can mix and heat the mud, and under the pushing action of the pushing blades 43, the mud is dispersed along the rows of baffles 52 on the lower side of the sleeve 42, so that the mud can fully contact and heat the rows of baffles 52; in this process, since all the baffles 52 are inclined toward the feeding direction, not only the contact area with the mud is increased, but also, under the thrust of the pushing blades 43, the baffles 52 can generate a downward squeezing force on the mud. On the one hand, under the action of the squeezing force, the water-absorbing blocks 53 in the baffles 52 absorb the moisture in the mud, and on the other hand, when the viscosity of the mud is relatively high, it can efficiently pass through the guide holes 54 and the partition screen 14 without accumulation.

[0046] Under the meshing action of the gear 57 and the ring gear 58, the second motor 56 drives the dispersion sleeve 51 to rotate. When the dispersion sleeve 51 rotates, the dispersion sleeve 51 drives all the protrusions 55 on its back to move. All the protrusions 55 push the separation mesh 14 to vibrate, further improving the mud separation effect, so that the mud can be fully mixed and the humidity is uniform when it enters the forming cylinder 1;

[0047] When the dispersion sleeve 51 rotates, the dispersion sleeve 51 drives all the baffles 52 to move. During this process:

[0048] On the one hand, the stirring of all the baffles 52 can increase the mixing effect of the slurry. When the baffle 52 near the bottom of the preheating cylinder 3 moves to the upper side, the air circulation component 6 can perform hot air drying on the water-absorbing material blocks 53 in each baffle 52, thereby increasing the water absorption efficiency of the water-absorbing material blocks 53.

[0049] On the other hand, when waste materials in the slurry are stuck in the baffles 52, the baffles 52 near the bottom of the preheating cylinder 3 drive the waste materials to the air outlet of the air circulation assembly 6. At this time, the wind force of the air circulation assembly 6 can separate the stuck waste materials from the baffles 52.

[0050] Furthermore, since all the baffles 52 are arranged at an angle, the baffles 52 can guide the wind force of the air circulation component 6 so that the wind force of the air circulation component 6 dries and unclogs the filter screen 44 .

[0051] like Figure 2 As shown in FIG. 1 , as a preferred embodiment of the present invention, the air circulation assembly 6 includes a first air pump 61 , a filter box 62 , a strip groove 63 and an air guide pipe 64 ;

[0052] The outer wall of the preheating cylinder 3 is fixedly connected to an air pump No. 1 61, the air inlet pipe of the air pump No. 1 61 is rotatably connected to one end of the sleeve 42, the sleeve 42 is provided with a plurality of through holes, the air pump No. 1 61 is connected to a filter box 62, and the filter box 62 stores absorbent material, the filter box 62 is fixedly connected to the outer end face of the preheating cylinder 3, the inner wall of the preheating cylinder 3 is provided with a strip groove 63, the strip groove 63 is opposite to the dispersion sleeve 51, and an air guide pipe 64 is connected between the filter box 62 and the strip groove 63.

[0053] In this embodiment, air pump No. 1 61 is started, and air pump No. 1 61 absorbs the water vapor in the preheating cylinder 3 through the through hole on the sleeve 42. The water vapor is then absorbed by the water-absorbing material in the filter box 62, and the dried hot air is transported to the strip groove 63 through the air guide pipe 64. When the partial baffle 52 on the dispersion sleeve 51 passes from the lower side of the strip groove 63, the hot air in the strip groove 63 can dry the water-absorbing material block 53 in this partial baffle 52, and under the guiding action of this partial baffle 52, the hot air dries and unclogs the filter mesh plate 44.

[0054] like Figure 6 As shown, as a preferred embodiment of the present invention, the pressurizing mechanism 8 includes a No. 1 electric telescopic rod 81, a pressurizing plate 82 and an electric heating sleeve 83;

[0055] The No. 1 electric telescopic rod 81 is fixedly connected to the fixed frame 2 through a fixing plate. The telescopic end of the No. 1 electric telescopic rod 81 is fixedly connected to a pressure plate 82. The pressure plate 82 is connected to an electric heating sleeve 83. The inner wall of the electric heating sleeve 83 is conical. A solenoid valve is provided at the connection between the No. 1 electric telescopic rod 81 and the hose 16.

[0056] In this embodiment, the No. 1 electric telescopic rod 81 is started, and the No. 1 electric telescopic rod 81 drives the pressure plate 82 and the electric heating sleeve 83 to squeeze the mud. At the same time, the pressure plate 82 and the electric heating sleeve 83 heat and evaporate the mud, so that the mud agglomerates for subsequent use.

[0057] like Figure 6 As shown, as a preferred embodiment of the present invention, the filter assembly 9 includes a filter sleeve 91, a third motor 92 and a gear transmission pair 93;

[0058] The filter sleeve 91 is rotatably connected to the rotating seat inside the water collecting chamber 11, and the bottom of the forming cylinder 1 is fixedly connected to the No. 3 motor 92. A gear transmission pair 93 is provided between the No. 3 motor 92 and the filter sleeve 91. The gear transmission pair 93 slides and passes through the push plate 7. The filter sleeve 91 is provided with a filter screen at a section on the upper side of the push plate 7, and an electric heating network is provided inside the filter screen.

[0059] In this embodiment, the third motor 92 drives the filter sleeve 91 to rotate through the gear transmission pair 93 to prevent the mud from adhering to the filter sleeve 91 and causing the filter screen to be blocked. At this time, the second air pump 12 is started to pump air outside the water collection chamber 11, generating a negative pressure in the water collection chamber 11. Under the action of the atmospheric negative pressure, the water in the mud can be accelerated to gather in the middle of the forming cylinder 1, and the electric heating network in the middle of the forming cylinder 1 evaporates the water.

[0060] On the one hand, at this time, negative pressure suction is applied to the mud in the middle of the forming cylinder 1 and heating is performed, so that the mud in the middle of the forming cylinder 1 can be quickly dried and agglomerated, thereby preventing the mud in the middle from being broken and difficult to form under the pressure of the side of the pressurizing mechanism 8;

[0061] On the other hand, when the drying speed of the mud near the side wall of the forming cylinder 1 is higher than that of the mud in the middle of the forming cylinder 1, it is difficult for the pressure-increasing mechanism 8 to apply effective extrusion force to the mud in the middle of the forming cylinder 1, thereby reducing the drying speed of the mud in the middle of the forming cylinder 1. In this embodiment, under the action of the negative pressure suction of the electric heating network and the No. 2 air pump 12, the mud in the forming cylinder 1 can quickly discharge water into the water collecting chamber 11, while effectively improving the integrity of the mud agglomerates, which is convenient for the subsequent utilization of the mud agglomerates.

[0062] Working principle:

[0063] The waste slurry enters the preheating cylinder 3 through the feed pipe 13, and completes the dispersion preheating → waste separation → moisture pre-removal in sequence; the pretreated slurry enters the forming cylinder 1 through the guide trough 15 and the hose 16, and is finally solidified into blocks through the synergistic effect of negative pressure water absorption + mechanical extrusion + heating and drying.

[0064] The preheating cylinder 3 realizes mud preheating and drying: in the pushing mechanism 4, the No. 1 motor 41 drives the sleeve 42 to rotate, and the spiral pushing blades 43 push the mud forward. At the same time, the filter screen 44 intercepts large particles of waste such as drill cuttings, and the waste is pushed to the waste trough 17 for collection; in the dispersion mechanism 5, the No. 2 motor 56 drives the dispersion sleeve 51 to rotate through the gear 57 and the ring gear 58, and the baffle 52 with an inclined inner side cuts the mud flow, increasing the mud heating area; the baffle 52 has a built-in absorbent block 53 to absorb moisture, and the guide hole 54 guides the viscous mud to flow downstream to prevent clogging; the protrusion 55 on the back of the dispersion sleeve 51 periodically hits the partition screen 14, generating vibration to prevent the mesh from clogging; in the air circulation component 6, the No. 1 air pump 61 sucks water vapor in the preheating cylinder 3, and after being dehumidified by the absorbent material in the filter box 62, the dry hot air is blown to the baffle 52 through the air guide pipe 64 and the strip groove 63, regenerating the absorbent block 53 and blowing the filter screen 44.

[0065] The forming cylinder 1 solidifies the slurry: Motor 3 (92) rotates the filter sleeve 91 via a gear train 93, preventing slurry from sticking. Air pump 2 (12) creates negative pressure in the water collection chamber 11, accelerating the flow of water toward the filter sleeve 91. The built-in electric heating network evaporates any remaining moisture. Electric telescopic rod 1 (81) pushes pressure plate 82 and conical electric heating sleeve 83 downward to press the slurry. The combined mechanical force and heat dehydrate and agglomerate the slurry. A solenoid valve at the inlet of hose 16 controls the slurry feed sequence. Push plate 7, driven by electric telescopic rod 2 (10), closes the water collection chamber 11 during the extrusion phase and lifts and releases the slurry during the discharge phase.

[0066] The technical solution of the present invention has the following beneficial effects:

[0067] Efficient pretreatment: The combination of the rotating baffle 52 and the vibrating mesh plate 14 of the dispersion mechanism 5 realizes multi-stage cutting and uniform preheating of the mud, solving the problem of accumulation of viscous materials; the air circulation system realizes moisture recovery and regeneration of the water-absorbing material blocks 53.

[0068] Complete solid-liquid separation: negative pressure-extrusion-heating triple technology: negative pressure suction accelerates water migration in the core area, the electric heating network suppresses cracking in the middle of the mud, and the extrusion force strengthens edge dehydration; the rotating filter sleeve 91 dynamically prevents blocking and improves filtration efficiency.

[0069] Optimized molding quality: When the conical electric heating jacket 83 is pressurized, heat gradient distribution is achieved, and the inside and outside of the mud block are dried synchronously, thereby improving the anti-crushing strength of the mud block.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for treating waste mud from oil drilling, comprising a forming cylinder (1), characterized in that: The forming cylinder (1) is fixedly connected to a preheating cylinder (3) via a fixing frame (2), the preheating cylinder (3) is connected to a waste tank (17), a pushing mechanism (4) for pushing and drying the slurry is provided in the preheating cylinder (3), a partitioning mesh plate (14) is provided at the bottom of the preheating cylinder (3), a dispersing mechanism (5) is provided in the preheating cylinder (3), the dispersing mechanism (5) can disperse and dry the slurry, and an air circulation component (6) for collecting water vapor is provided in the preheating cylinder (3); A push plate (7) is vertically slidably connected to the molding cylinder (1), and a second electric telescopic rod (10) is fixedly connected to the push plate (7) and the bottom surface of the molding cylinder (1). A closed water collecting chamber (11) is constructed between the push plate (7) and the molding cylinder (1), and a filter assembly (9) is provided in the middle position of the molding cylinder (1). The filter assembly (9) can filter and heat the mud in the molding cylinder (1), and the water collecting chamber (11) is provided with a second air pump (12). The fixed frame (2) is connected to a pressurizing mechanism (8), and the pressurizing mechanism (8) can squeeze and dry the mud in the molding cylinder (1). A material guide trough (15) is provided at the bottom of the partition mesh plate (14), and a hose (16) is connected between the material guide trough (15) and the pressurizing mechanism (8); The dispersion mechanism (5) includes a dispersion sleeve (51), a baffle (52), a water-absorbing material block (53) and a guide hole (54); the dispersion sleeve (51) is rotatably connected to the inner wall of the preheating cylinder (3); a heating pad is embedded in the inner wall of the preheating cylinder (3); the heating pad is in contact with the dispersion sleeve (51); a plurality of baffles (52) are provided on the inner side of the dispersion sleeve (51); the baffles (52) are all inclined toward the feeding direction, and the baffles (52) are all provided with water-absorbing material blocks (53); the dispersion sleeve (51) on one side of the baffle (52) is provided with a guide hole (54); and a plurality of protrusions (55) are provided on the side of the dispersion sleeve (51) facing the inner wall of the preheating cylinder (3); The outer wall of the preheating cylinder (3) is fixedly connected to a second motor (56), and the output shaft of the second motor (56) is fixedly connected to a gear (57), and the gear (57) is meshed with a gear ring (58) on the outer wall of the dispersion sleeve (51).

2. The oil drilling waste mud treatment device according to claim 1, characterized in that: The pushing mechanism (4) includes a No. 1 motor (41), a sleeve (42), a pushing blade (43) and a filter screen (44); The No. 1 motor (41) is fixedly connected to the preheating cylinder (3), and the output shaft of the No. 1 motor (41) is fixedly connected to a sleeve (42), and the sleeve (42) is spirally provided with a pushing blade (43) and a filter screen (44).

3. The oil drilling waste mud treatment device according to claim 2, characterized in that: The air circulation assembly (6) includes a first air pump (61), a filter box (62), a strip groove (63), and an air guide tube (64); The outer wall of the preheating cylinder (3) is fixedly connected to an air pump (61), an air inlet pipe of the air pump (61) is rotatably connected to one end of the sleeve (42), a plurality of through holes are provided on the sleeve (42), the air pump (61) is connected to a filter box (62), an absorbent material is stored in the filter box (62), the filter box (62) is fixedly connected to the outer end face of the preheating cylinder (3), a strip groove (63) is provided on the inner wall of the preheating cylinder (3), the strip groove (63) is opposite to the dispersion sleeve (51), and an air guide pipe (64) is connected between the filter box (62) and the strip groove (63).

4. The oil drilling waste mud treatment device according to claim 1, characterized in that: The pressurizing mechanism (8) comprises a No. 1 electric telescopic rod (81), a pressurizing plate (82) and an electric heating sleeve (83); The first electric telescopic rod (81) is fixedly connected to the fixed frame (2) via a fixed plate, the telescopic end of the first electric telescopic rod (81) is fixedly connected to a pressure plate (82), the pressure plate (82) is connected to an electric heating sleeve (83), the inner wall of the electric heating sleeve (83) is conical, and a solenoid valve is provided at the connection between the first electric telescopic rod (81) and the hose (16).

5. The oil drilling waste mud treatment device according to claim 1, characterized in that: The filter assembly (9) includes a filter sleeve (91), a third motor (92), and a gear transmission pair (93); The filter sleeve (91) is rotatably connected to the rotating seat inside the water collecting chamber (11), and a No. 3 motor (92) is fixedly connected to the bottom of the forming cylinder (1). A gear transmission pair (93) is provided between the No. 3 motor (92) and the filter sleeve (91), and the gear transmission pair (93) slides and passes through the push plate (7). The filter sleeve (91) is provided with a filter screen at a section on the upper side of the push plate (7), and an electric heating network is provided inside the filter screen.

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