A device for processing waste drilling material

The device, which combines a low-temperature dryer and a vacuum pump, solves the problems of unsatisfactory mud separation and the inability to reuse water resources in traditional waste drilling material treatment. It achieves efficient and environmentally friendly waste drilling material treatment, and improves the operational stability and resource utilization of the equipment.

CN119612918BActive Publication Date: 2026-05-19RENQIU NORTH CHINA PETROLEUM TIANHUA ENVIRONMENTAL PROTECTION & ENERGY SAVING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RENQIU NORTH CHINA PETROLEUM TIANHUA ENVIRONMENTAL PROTECTION & ENERGY SAVING CO LTD
Filing Date
2025-01-18
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional waste drilling material treatment technologies suffer from problems such as unsatisfactory mud separation, difficulty in chemical removal, decomposition of heat-sensitive components, high energy consumption, and inability to directly reuse water resources, resulting in high treatment costs, low efficiency, and significant environmental pollution risks.

Method used

The device employs a low-temperature dryer combined with a vacuum pump and a condenser. Through material separation, low-temperature drying, and condensation of water vapor under negative pressure, it achieves efficient separation of salt and water and recycling of water resources. The design of the isolation chamber and the swinging component further improves the separation efficiency and sludge discharge efficiency.

Benefits of technology

It enables the efficient recycling of water resources in waste drilling materials, reduces treatment costs, improves treatment efficiency and environmental friendliness, and ensures stable operation and separation effect of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of oil drilling equipment, and proposes a waste drilling material processing device, which comprises a mud receiving member, the mud receiving member is connected to a mixer, a dosing member is connected to the mixer, the mixer is connected to a low-temperature dryer, the low-temperature dryer is connected to a condenser, and the condenser is connected to a vacuum pump. Through the above technical scheme, the problem that the waste drilling material processing product has high salt content and cannot be directly utilized in the prior art is solved.
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Description

Technical Field

[0001] This invention relates to the field of oil drilling equipment technology, specifically to a waste drilling material treatment device. Background Technology

[0002] In the field of oil drilling engineering, the disposal of abandoned drilling materials has always been a crucial aspect that faces numerous challenges and urgently needs optimization. Traditional disposal methods and related equipment have obvious limitations and shortcomings.

[0003] In the early stages of treating abandoned drilling materials, simple, extensive methods such as natural sedimentation and stockpiling were often used. While natural sedimentation can cause some solid particles to settle, it is extremely time-consuming and difficult to effectively separate fine particles and impurities tightly bound to chemical agents. As a result, the treated abandoned drilling materials still contain a large amount of pollutants. If they are subsequently dumped haphazardly, they can easily cause serious pollution to the surrounding environment, including soil and groundwater, which does not meet increasingly stringent environmental protection requirements.

[0004] With technological advancements, conventional mechanical separation equipment, such as centrifuges, has begun to be used for processing. However, when processing waste drilling mud, centrifuges often fail to achieve ideal separation results, especially for mud with complex compositions, high viscosity, and residues of various chemical agents. On the one hand, it struggles to completely separate solid particles of different sizes and properties; on the other hand, it cannot effectively remove chemical agents from the mud. Consequently, the processed waste drilling mud still does not meet the standards for subsequent disposal or reuse, requiring further treatment methods, which increases the complexity and cost of the process.

[0005] In the drying process, conventional drying equipment typically operates at high temperatures. While this high-temperature drying method can quickly remove moisture, it can easily alter the properties of heat-sensitive components and residual chemicals in waste drilling materials, causing them to decompose or even produce harmful gases. This not only affects the quality of the processed materials but may also lead to new environmental pollution problems and increase energy consumption, which is inconsistent with the development trend of energy conservation and emission reduction.

[0006] In terms of water recycling, traditional treatment technologies, such as the plate and frame filter press mentioned earlier, have limitations in handling various types of mud. When dealing with common saturated saline mud slurries, they suffer from severe deficiencies in separating salt and water. This results in recycled water containing high levels of salt, making it unsuitable for direct reuse. It requires additional complex purification processes, consuming significant manpower, resources, and financial investment. This not only reduces treatment efficiency but also significantly diminishes the economic viability of the entire waste drilling waste treatment process.

[0007] Moreover, traditional processing systems often lack integrity and coordination, with insufficient connection between processing stages. When materials and gases flow between different devices, problems such as blockage and unstable pressure can easily occur, affecting the normal operation of the equipment. Frequent shutdowns for maintenance and debugging are required, further reducing the continuity and reliability of processing and making it difficult to meet the actual needs of large-scale, efficient processing of waste drilling materials. Summary of the Invention

[0008] This invention proposes a waste drilling material treatment device, which solves the problem in related technologies that the waste drilling material treatment products have high salt content and cannot be directly utilized.

[0009] The technical solution of the present invention is as follows:

[0010] An abandoned drilling waste treatment device, comprising:

[0011] Mud receiving unit;

[0012] The mixer, wherein the slurry receiving device leads to the mixer;

[0013] A dosing device, the dosing device leading to the mixer;

[0014] A low-temperature dryer, wherein the mixer is connected to the low-temperature dryer;

[0015] The condenser is connected to the low-temperature dryer;

[0016] A vacuum pump is used to maintain a vacuum environment in the condenser and the low-temperature dryer.

[0017] As a further technical solution, the low-temperature dryer includes:

[0018] The machine casing has a drying chamber, which has an inlet, a mud outlet, and a negative pressure hole. The mixer is connected to the inlet, the mud outlet is used for mud discharge, and the negative pressure hole is connected to the condenser.

[0019] A rotating component is rotatably disposed within the drying chamber. The rotating component has several isolation chambers, four of which are arranged in a circle. The rotating component is configured such that, when rotating, the isolation chambers are sequentially connected to or disconnected from the inlet.

[0020] A swinging component is oscillatingly disposed on the cavity wall of the isolation chamber.

[0021] As a further technical solution, a gap exists between the swinging member and the cavity wall of the isolation cavity, and the system further includes:

[0022] A movable top member is slidably disposed within the drying chamber. The movable top member is configured such that after sliding, it slides into the gap and abuts against the swing member. After the movable top member abuts against the swing member, the swing member is perpendicular to the wall of the isolation chamber.

[0023] An elastic element, one end of which acts on the swinging element and the other end of which acts on the wall of the isolation cavity, provides a force to reduce the gap.

[0024] As a further technical solution, it also includes:

[0025] A scraper is slidably disposed within the isolation cavity, with its bottom abutting against the bottom of the isolation cavity. The scraper has a guide groove, and the cavity wall of the isolation cavity has a guide portion, the guide groove being used to accommodate the guide portion.

[0026] As a further technical solution, the scraper has a flexible deformation part, which is pressed onto the swing member.

[0027] As a further technical solution, the scraper has a threaded hole and further includes:

[0028] A screw, the screw being threaded into the threaded hole, and the end of the screw having a first connecting portion;

[0029] A sliding member is slidably and rotatably disposed within the drying chamber. The end of the sliding member has a second connecting portion. After the sliding member slides, the first connecting portion is used to connect with the second connecting portion. After the first connecting portion and the second connecting portion are connected, the sliding member is used to drive the screw to rotate.

[0030] As a further technical solution, it also includes:

[0031] A rotating wheel is rotatably mounted on the housing, and a sliding member is slidably mounted on the rotating wheel. The rotating wheel is used to drive the sliding member to rotate.

[0032] A linear drive element is disposed on the housing and is used to drive the slider to slide.

[0033] As a further technical solution, the inlet and the mud outlet are respectively connected to two adjacent isolation chambers, the negative pressure hole is located on the side wall of the drying chamber and below the rotating component, and further includes:

[0034] A first baffle is disposed inside the drying chamber and located around the rotating member. After the rotating member rotates, the first baffle blocks the isolation chamber and forms a solid-liquid separation chamber with the rotating member. The first baffle has a notch. After the rotating member rotates, the isolation chamber is connected to or disconnected from the notch. The notch is connected to the mud outlet.

[0035] As a further technical solution, the bottom of the rotating component is a sieve plate with sieve holes, which are used to filter the solution in the solid-liquid separation chamber. The rotating component and the inner wall of the drying chamber form an evaporation tank. The solid-liquid separation chamber and the evaporation tank are connected through the sieve holes and are located below the rotating component. The evaporation tank is connected to the negative pressure hole. The system also includes the following components:

[0036] The second baffle is disposed inside the drying chamber and located on the side of the mud outlet. The second baffle is used to block part of the screen holes near the bottom of the rotating part of the mud outlet and to block all the screen holes of at least one of the isolation chambers.

[0037] A partition is disposed inside the evaporation tank. The partition has a connecting hole and divides the evaporation tank into a concentration chamber and an evaporation chamber. The connecting hole is used to connect the concentration chamber and the evaporation chamber.

[0038] Pupil valve, wherein the pupil valve is disposed on the communicating hole;

[0039] A one-way valve is provided, wherein both the concentration chamber and the evaporation chamber have a negative pressure port, and the one-way valve is disposed on the negative pressure port;

[0040] The evaporation chamber has a crystal outlet, and the flap is disposed at the crystal outlet. The flap is rotatably mounted on the casing, and after the flap rotates, it is used to discharge the residue in the evaporation chamber.

[0041] As a further technical solution, the condenser includes:

[0042] A condenser shell having a condensation chamber, a negative pressure orifice leading to the condensation chamber, and a vacuum pump providing negative pressure to the condensation chamber;

[0043] A condensing plate is inclinedly disposed in the condensing chamber. The condensing plate has a flow guide groove and a gas guide hole. The condensing plate consists of several layers, and the gas guide hole on the condensing plate faces the flow guide groove of the adjacent layer.

[0044] A liquid collector is disposed inside the condensation chamber, and the guide channel leads to the liquid collector;

[0045] The liquid collector is located at the bottom of the condensation chamber and also includes:

[0046] The U-shaped tube leads to the liquid collector;

[0047] A liquid collecting pump, the U-shaped tube leading to the liquid collecting pump;

[0048] The dosing device includes:

[0049] A flocculation pipe leading to the mixer is used to introduce flocculant into the drying chamber;

[0050] A coagulant aid pipe, which leads to the flocculation pipe, is used to introduce a coagulant aid into the flocculation pipe and to initially mix the coagulant aid with the flocculant.

[0051] The working principle and beneficial effects of this invention are as follows:

[0052] In this invention, plate and frame filter presses are commonly used in traditional waste drilling mud treatment technologies to separate mud from water. However, existing plate and frame filter presses are mainly designed for polymer mud, while the mud currently encountered is mostly saturated salt cement slurry containing a large amount of industrial salt. This characteristic makes it impossible for existing plate and frame filter presses to effectively separate salt and water when processing such mud. As a result, the recycled water contains a large amount of salt and cannot be used directly, requiring additional treatment processes for purification. This not only increases treatment costs but also reduces treatment efficiency.

[0053] In stark contrast, the waste drilling waste treatment unit innovatively utilizes a vacuum pump to separate materials within a low-temperature dryer. Under the negative pressure created by the vacuum pump, moisture in the material evaporates more easily, and the condenser efficiently condenses the vapor into liquid water. This innovative treatment method significantly improves the purity of the water condensed in the condenser, allowing for direct reuse. This remarkable effect not only solves the problem of unusable recycled water in traditional technologies but also achieves water resource recycling, greatly reducing water costs in the waste drilling waste treatment process and improving the environmental friendliness and resource utilization of the entire process. Simultaneously, it avoids the limitations of using plate filter presses, providing a more efficient and environmentally friendly solution for waste drilling waste treatment. Attached Figure Description

[0054] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0055] Figure 1 This is a schematic diagram of the process of the present invention;

[0056] Figure 2 This is a schematic diagram of the low-temperature dryer in this invention;

[0057] Figure 3 This is a schematic diagram of the internal structure of the low-temperature dryer of the present invention;

[0058] Figure 4 This is another schematic diagram of the internal structure of the low-temperature dryer in this invention;

[0059] Figure 5 This is a schematic diagram of the rotating component in this invention;

[0060] Figure 6 This is a schematic diagram of the condenser in this invention;

[0061] In the diagram: Slurry receiving unit-1, mixer-2, dosing unit-3, flocculation pipe-301, coagulation aid pipe-302, low-temperature dryer-4, casing-401, drying chamber-402, rotating component-403, isolation chamber-404, oscillating component-405, gap-406, inlet-407, slurry outlet-408, negative pressure hole-409, solid-liquid separation chamber-410, evaporation tank-411, condenser-5, condensation shell-501, condensation chamber-502, condensation plate-503, guide channel-504, air guide hole-505 , liquid collector-506, vacuum pump-6, movable top part-7, scraper-9, threaded hole-901, flexible deformation part-902, screw-10, first connecting part-1001, sliding part-11, second connecting part-1101, first baffle-12, notch-1201, partition-13, connecting hole-1301, concentration chamber-412, evaporation chamber-413, pupil valve-14, one-way valve-15, flap-16, U-tube-17, liquid collector pump-18, second baffle-19, rotating wheel-20. Detailed Implementation

[0062] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0063] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0064] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0065] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0066] Reference Figures 1-6 As the first embodiment of the present invention, a waste drilling material treatment device is proposed, including a mud receiving unit 1, the mud receiving unit 1 leading to a mixer 2, a chemical dosing unit 3 leading to the mixer 2, the mixer 2 leading to a low-temperature dryer 4, the low-temperature dryer 4 leading to a condenser 5, and the condenser 5 leading to a vacuum pump 6.

[0067] In this embodiment, the mud receiving unit 1, as the starting part of the entire waste drilling material treatment device, undertakes the important task of collecting waste drilling mud. After drilling operations are completed, a large amount of waste mud containing various impurities, solid particles, and chemical residues is generated. The mud receiving unit 1 can collect these waste muds from different drilling sites and under different working conditions in a unified manner, providing a stable material source for subsequent processing and ensuring that the entire treatment device can continuously and effectively carry out waste drilling material treatment.

[0068] Mixer 2 receives waste drilling mud from mud receiving unit 1 and chemicals added by chemical dosing unit 3. Its core function is to thoroughly and uniformly mix these two materials. Through the rotational motion of internal stirring devices (such as stirring paddles and spiral blades), the waste drilling mud and chemicals are broken down from their original agglomerated state under mechanical force, achieving better uniform dispersion and mixing. Good mixing significantly improves the processing efficiency and quality of the entire waste drilling material treatment unit. When the waste drilling mud and chemicals are fully mixed, the chemicals can more comprehensively contact the various components in the mud, maximizing their effect and allowing the substances to be treated to be converted and removed more quickly, reducing processing time and the amount of chemicals used.

[0069] The dosing unit 3 is responsible for adding specific chemicals to the mixer 2, and it has precise chemical metering and dosing functions. Depending on the composition, properties, and treatment objectives of the waste sludge, the type, dosage, and timing of the added chemicals can be accurately controlled, avoiding problems such as resource waste and increased difficulty in subsequent treatment due to excessive dosing, or poor treatment results due to insufficient dosing, thus improving the scientific and economic efficiency of the entire treatment process.

[0070] Waste drilling materials typically contain a large amount of moisture. The low-temperature dryer 4 uses the principle of heat exchange to gradually evaporate and remove the moisture from the material in a low-temperature environment, achieving volume reduction of the waste drilling materials. After low-temperature drying, the volume and weight of the material are significantly reduced, which not only facilitates subsequent transportation, storage, and final disposal, but also reduces potential environmental hazards and lowers the pressure on subsequent processing stages. This makes the entire waste drilling material treatment process more efficient and convenient, further enhancing the practicality and processing capacity of the treatment equipment.

[0071] During the drying process of waste drilling materials in the low-temperature dryer 4, the moisture in the material evaporates as water vapor. This water vapor enters the condenser 5, where it uses a cooling medium (such as water or refrigerant) to condense the water vapor into liquid water through heat exchange. During operation, the condenser 5 also regulates and stabilizes the system pressure of the entire treatment unit by condensing the water vapor. If a large amount of water vapor accumulates in the system, it will cause the system pressure to rise, affecting the normal operation of various equipment. The condenser 5 promptly condenses the water vapor into liquid and discharges it, maintaining a relatively stable pressure environment within the system. This ensures smooth flow of materials and gases between components such as the mud receiver 1, mixer 2, and low-temperature dryer 4, preventing equipment failures and material leaks caused by abnormal pressure, and improving the operational stability and reliability of the entire waste drilling material treatment unit. The vacuum pump 6 is connected to the condenser 5, and its main function is to extract gas from the system and create a negative pressure environment.

[0072] In traditional waste drilling material treatment technologies, plate and frame filter presses are commonly used to separate mud and water. However, existing plate and frame filter presses are primarily designed for polymer mud, while the mud currently being processed is mostly saturated salt-cement slurry containing a large amount of industrial salt. This characteristic makes it impossible for existing plate and frame filter presses to effectively separate salt and water when processing such mud. As a result, the recycled water contains a large amount of salt and cannot be used directly, requiring additional treatment processes for purification. This not only increases treatment costs but also reduces treatment efficiency.

[0073] In stark contrast, the waste drilling waste treatment device innovatively utilizes a vacuum pump 6 to separate materials within the low-temperature dryer 4. Under the negative pressure created by the vacuum pump 6, moisture in the material evaporates more easily, and the condenser 5 efficiently condenses the vapor into liquid water. Through this innovative treatment method, the purity of the water condensed by the condenser 5 is greatly improved, allowing for direct reuse. This significant effect not only solves the problem of unusable recycled water in traditional technologies but also achieves water resource recycling, greatly reducing water costs in the waste drilling waste treatment process and improving the environmental friendliness and resource utilization of the entire process. Simultaneously, it avoids the limitations of using a plate filter press, providing a more efficient and environmentally friendly solution for waste drilling waste treatment.

[0074] Furthermore, the low-temperature dryer 4 includes a housing 401, which has a drying chamber 402. A rotating member 403 is rotatably disposed in the drying chamber 402. The rotating member 403 has several isolation chambers 404, which are arranged in a circle. A swinging member 405 is swinging disposed on the cavity wall of the isolation chamber 404.

[0075] In this embodiment, the isolation chamber 404 is specifically designed for mud sedimentation, providing physical space for effective separation of mud and solution. When the mixed materials enter the isolation chamber 404, under the influence of gravity, solid particles in the mud (such as silt and clay) gradually sink, while the solution gradually floats, thus achieving preliminary solid-liquid separation. Since there are four isolation chambers 404 arranged circumferentially, each chamber 404 can sequentially perform sedimentation separation operations under the drive of the rotating component 403, greatly improving separation efficiency. This allows the low-temperature dryer 4 to process more materials per unit time, meeting the needs of large-scale waste drilling material treatment. Different batches of materials undergo sedimentation separation simultaneously in different isolation chambers 404, avoiding fluctuations in separation effects caused by material mixing or discontinuous processing flows. Each isolation chamber 404 can be considered an independent separation unit with a relatively stable sedimentation environment and less susceptibility to external interference, ensuring consistent results for each separation operation and providing a reliable foundation for further processing of the separated mud and solution.

[0076] The swinging component 405 reduces the area of ​​the isolation chamber 404 after swinging, cleverly solving the problem of sludge discharge after settling. Once the sludge has settled in the isolation chamber 404, the swinging component 405 begins to swing. As the area of ​​the isolation chamber 404 gradually decreases, the sludge settled at the bottom is gradually squeezed and pushed towards the sludge outlet 408, facilitating convenient and quick sludge discharge. Compared to traditional manual cleaning or complex mechanical discharge methods, this method of using the swinging component 405 to change the area of ​​the isolation chamber 404 to discharge sludge significantly improves sludge discharge efficiency and reduces manual operation and equipment maintenance costs.

[0077] The structure of the low-temperature dryer 4, consisting of an isolation chamber 404 and a swinging component 405, optimizes the overall performance of the equipment. The isolation chamber 404 achieves efficient separation of mud and solution, while the swinging component 405 solves the problem of mud discharge. Working together, the two enable the low-temperature dryer 4 to play a better role in the treatment of waste drilling materials. This structural design not only improves the efficiency of separation and mud discharge but also ensures the stability of the treatment effect and the continuity of equipment operation. It provides favorable conditions for further processing of the separated products (such as purification of the solution and reuse of the mud), improving the overall processing capacity and quality of the waste drilling material treatment device. The structure of the isolation chamber 404 and the swinging component 405 is relatively simple and easy to operate. Since the isolation chambers 404 are independent of each other, maintenance or cleaning of one isolation chamber 404 will not affect the normal operation of the other isolation chambers 404, improving maintenance efficiency.

[0078] Furthermore, a gap 406 exists between the swing member 405 and the cavity wall of the isolation chamber 404. A movable top member 7 is also included. The movable top member 7 is slidably disposed within the drying chamber 402. The movable top member 7 is configured to slide into the gap 406 after sliding and abut against the swing member 405. After the movable top member 7 abuts against the swing member 405, the swing member 405 is perpendicular to the cavity wall of the isolation chamber 404. One end of the elastic member acts on the swing member 405, and the other end acts on the cavity wall of the isolation chamber 404, providing a force to reduce the gap 406.

[0079] In this embodiment, the movable top member 7 is slidably disposed within the drying chamber 402 and can slide into the gap 406 between the swing member 405 and the wall of the isolation chamber 404, abutting against the swing member 405. This design enables precise control of the movement of the swing member 405. When it is necessary to discharge the sludge settled in the isolation chamber 404, the movable top member 7 slides along a preset path and accurately enters the gap 406. By abutting against the swing member 405, it powerfully pushes the swing member 405 to move, causing it to quickly swing from its initial state to a position perpendicular to the wall of the isolation chamber 404. This precise driving method, compared to other possible indirect driving methods, can more reliably ensure that the swing member 405 functions promptly and accurately when needed, guaranteeing the stability and reliability of the sludge discharge operation and improving sludge discharge efficiency.

[0080] When the oscillating component 405 becomes perpendicular to the wall of the isolation chamber 404 under the action of the moving top component 7, the effective area of ​​the isolation chamber 404 rapidly decreases, creating a strong squeezing effect on the sludge settling at the bottom. This precisely controlled area change allows the sludge to be concentrated and efficiently pushed towards the discharge port 408, avoiding sludge residue or poor discharge. One end of the elastic component acts on the oscillating component 405, and the other end acts on the wall of the isolation chamber 404. The force it provides keeps the gap 406 at a suitable size when no external force is applied, and it can automatically reset after the oscillating component 405 moves. When the moving top component 7 slides away from the gap 406, the elastic component releases its elastic force, driving the oscillating component 405 back to its initial state, while simultaneously restoring the gap 406 to its normal size. This automatic reset function not only saves on additional mechanical reset devices and power sources, simplifying the equipment structure and reducing equipment costs, but also makes the movement cycle of the oscillating component 405 smoother, improving the automation and stability of the equipment operation.

[0081] Furthermore, it also includes a scraper 9, which is slidably disposed in the isolation cavity 404. The bottom of the scraper 9 abuts against the bottom of the isolation cavity 404. The scraper 9 has a guide groove, and the cavity wall of the isolation cavity 404 has a guide portion. The guide groove is used to accommodate the guide portion.

[0082] In this embodiment, the scraper 9 is slidably disposed within the isolation chamber 404, with its bottom in close contact with the bottom of the isolation chamber 404. This design ensures that residual sludge at the bottom of the isolation chamber 404 is thoroughly cleaned during the sludge discharge process. Even if a small amount of residual sludge remains under the squeezing action of the swing member 405, the scraper 9 can scrape it off during the sliding process, effectively preventing the accumulation of sludge at the bottom of the isolation chamber 404. The effect of the scraper 9 is particularly significant for some highly viscous and easily adherent sludge, further improving the thoroughness of sludge discharge and ensuring the cleanliness of the isolation chamber 404 after each use, providing a good foundation for subsequent sludge sedimentation and separation operations.

[0083] The scraper 9 has a guide groove, and the cavity wall of the isolation chamber 404 is provided with a guide part. The guide groove is used to accommodate the guide part. This structural design gives the scraper 9 extremely high stability and precision during sliding. The cooperation between the guide groove and the guide part restricts the movement trajectory of the scraper 9, preventing the scraper 9 from deviating, jamming, or shaking during sliding, and ensuring that the scraper 9 can smoothly carry out cleaning work along the predetermined route. This not only improves the working efficiency of the scraper 9, but also reduces the wear on the isolation chamber 404 caused by abnormal movement of the scraper 9, extending the service life of the equipment.

[0084] The scraper 9, together with the moving top component 7, the swing component 405, and the elastic component, works in concert to improve the overall performance of the low-temperature dryer 4. During the sludge discharge process, the moving top component 7 drives the swing component 405 to compress the sludge, followed by the scraper 9 performing subsequent cleaning. The entire process is seamlessly integrated, forming a highly efficient sludge treatment system. Simultaneously, the stable operation of the scraper 9 helps maintain the structural stability within the isolation chamber 404, complementing the buffering and resetting effect of the elastic component on the swing component 405. This further ensures the reliable operation of the low-temperature dryer 4 under complex operating conditions, providing stronger support for the efficient and stable operation of the entire waste drilling waste treatment device.

[0085] Furthermore, the scraper 9 has a flexible deformation part 902, which is pressed onto the swing member 405.

[0086] In this embodiment, the flexible deformation portion 902 of the scraper 9 is pressed onto the oscillating member 405, and can adaptively adjust according to changes in the surface shape and position of the oscillating member 405. Since the oscillating member 405 oscillates during operation, its surface is not completely flat and fixed. The flexible deformation portion 902, with its own flexibility, can closely conform to the surface of the oscillating member 405, ensuring effective scraping of mud adhering to the oscillating member 405, both at its initial position and during oscillation. For example, when the oscillating member 405 oscillates to a position perpendicular to the wall of the isolation cavity 404, mud may easily remain at the angle between it and the wall. The flexible deformation portion 902 can penetrate these angled areas through its own deformation, thoroughly cleaning the mud and avoiding residue, thus improving the comprehensiveness and thoroughness of mud removal.

[0087] Furthermore, the scraper 9 has a threaded hole 901 and also includes a screw 10, which is rotatably disposed in the threaded hole 901. The end of the screw 10 has a first connecting part 1001. The sliding member 11 is slidably and rotatably disposed in the drying chamber 402. The end of the sliding member 11 has a second connecting part 1101. The first connecting part 1001 is used to connect with the second connecting part 1101, and the sliding member 11 is used to drive the screw 10 to rotate.

[0088] In this embodiment, the screw 10 engages with the threaded hole 901 on the scraper 9. Utilizing the principle of threaded transmission, the rotation of the screw 10 is precisely converted into the linear sliding of the scraper 9. This transmission method offers extremely high precision. By controlling the rotation angle and number of turns of the screw 10, the movement distance of the scraper 9 within the isolation chamber 404 can be precisely controlled, ensuring thorough and meticulous cleaning of the mud and sludge at the bottom of the isolation chamber 404, leaving no corner untouched, thus greatly improving the effectiveness and quality of mud and sludge cleaning. For example, when small mud and sludge accumulate at the edges of the isolation chamber 404, by precisely controlling the rotation of the screw 10, the scraper 9 can accurately reach these locations and thoroughly clean the mud and sludge.

[0089] The sliding member 11 can both slide and rotate within the drying chamber 402. Its second connecting part 1101 at one end connects to the first connecting part 1001 at the end of the screw 10, thereby driving the screw 10 to rotate. This design provides operators with greater operational flexibility. During equipment operation, operators can flexibly move the sliding member 11 according to the actual sludge accumulation, selecting different positions and angles to drive the screw 10, thus controlling the operation of the scraper 9. For example, when the sludge distribution in a certain isolation chamber 404 is uneven, operators can move the sliding member 11 to drive the screw 10 to the scraper 9 at different positions, focusing on cleaning areas with more sludge and improving cleaning efficiency. Moreover, because the sliding member 11 has a relatively large operating space, it is more convenient and faster than directly operating the scraper 9 within the isolation chamber 404, reducing the operator's labor intensity and operational difficulty.

[0090] Furthermore, it also includes a rotating wheel 20, which is rotatably mounted on the housing 401, and a sliding member 11 is slidably mounted on the rotating wheel 20. The rotating wheel 20 is used to drive the sliding member 11 to rotate.

[0091] In this embodiment, the rotating wheel 20 is rotatably mounted on the housing 401, and the sliding member 11 is slidably mounted on the rotating wheel 20. The rotating wheel 20 drives the sliding member 11 to rotate, providing a stable and precise rotational transmission method for driving the scraper 9. Compared to other potentially more direct or simpler drive connection methods, the rotating wheel 20 can transmit power to the sliding member 11 more evenly and smoothly, thereby ensuring more stable sliding movement of the scraper 9 within the isolation chamber 404. For example, during long-term operation, the equipment may be subjected to various vibrations and external interferences. The rotational characteristics of the rotating wheel 20 can effectively buffer these unstable factors, ensuring the precise movement trajectory of the scraper 9 and avoiding problems such as scraper 9 jamming or shaking caused by uneven power transmission, thus guaranteeing the smooth progress of sludge cleaning.

[0092] Throughout the entire operation of the low-temperature dryer 4, the movement of the scraper 9 needs to be coordinated with the actions of other components (such as the rotating component 403, the oscillating component 405, etc.). The introduction of the rotating wheel 20 makes the rotation drive of the scraper 9 more orderly and better matches the operating rhythm of other components. After the rotating component 403 drives the isolation chamber 404 to perform material sedimentation and separation operations, the rotating wheel 20 can drive the sliding component 11 to rotate according to the preset time and speed, thereby driving the scraper 9 to clean the settled sludge in a timely manner, making the connection between the components tighter and smoother, improving the overall coordination and stability of the equipment operation, and optimizing the treatment process of waste drilling materials.

[0093] Furthermore, the drying chamber 402 has an inlet 407, a mud outlet 408, and a negative pressure hole 409. The inlet 407 and the mud outlet 408 are respectively connected to two adjacent isolation chambers 404. The negative pressure hole 409 is located on the side wall of the drying chamber 402 and below the rotating member 403. It also includes a first baffle 12, which is disposed in the drying chamber 402 and located around the rotating member 403, forming a solid-liquid separation chamber 410 with the isolation chamber 404. The first baffle 12 has a notch 1201, which is connected to the mud outlet 408.

[0094] In this embodiment, the inlet 407 and the mud outlet 408 of the drying chamber 402 are respectively connected to two adjacent isolation chambers 404, creating an efficient material flow path. Waste drilling mud can directly enter the specific isolation chamber 404 through the inlet 407 to begin the sedimentation and solid-liquid separation process. The mud residue that needs to be discharged after sedimentation can be smoothly discharged from the adjacent isolation chamber 404 through the mud outlet 408 after one rotation. This adjacent arrangement extends the movement distance and time of the material in the drying chamber, ensuring the sedimentation effect of the sludge and enabling the low-temperature dryer 4 to process large quantities of waste drilling materials more quickly.

[0095] The first baffle 12 is disposed inside the drying chamber 402, surrounding the rotating component 403, and forms a solid-liquid separation chamber 410 with the isolation chamber 404. During the slurry sedimentation process in the isolation chamber 404, the solid-liquid separation chamber 410 provides a relatively closed and stable environment, which helps to reduce the interference of external factors on the sedimentation process, allowing the solid particles in the slurry to settle to the bottom of the isolation chamber 404 more fully and quickly.

[0096] The negative pressure vent 409 is located on the side wall of the drying chamber 402 and below the rotating component 403. Connected to equipment such as the vacuum pump 6, it creates a negative pressure environment within the drying chamber 402. Under this negative pressure, the boiling point of water in the material decreases, making it easier to evaporate. For slurry undergoing sedimentation and separation, as well as the settled sludge, the negative pressure environment accelerates the evaporation process of water. This not only helps improve the drying degree of the subsequent sludge, facilitating its subsequent processing and disposal, but also further reduces the water content in the separated solution, increasing its concentration and providing convenience for solution recycling or further processing.

[0097] Furthermore, the bottom of the rotating component 403 is a sieve plate with sieve holes, which are used to filter the solution in the solid-liquid separation chamber 410. The rotating component 403 and the inner wall of the drying chamber 402 form an evaporation tank 411. The evaporation tank 411 is located in the drying chamber 402 and below the rotating component 403. The evaporation tank 411 is connected to the negative pressure hole 409.

[0098] In this embodiment, the bottom of the rotating component 403 is a sieve plate with sieve holes. This design enables the filtration of the solution in the solid-liquid separation chamber 410. When the solution in the solid-liquid separation chamber 410 passes through the sieve plate at the bottom of the rotating component 403, the solid particles are intercepted by the sieve holes, and the solution enters the evaporation tank 411 below for evaporation. The tank wall of the evaporation tank 411 is equipped with heating elements for heating.

[0099] The rotating component 403 and the inner wall of the drying chamber 402 form an evaporation tank 411, which is connected to the negative pressure hole 409. When the drying chamber 402 is under negative pressure, the solution filtered through the sieve plate flows into the evaporation tank 411. Due to the negative pressure environment and the relatively large evaporation area of ​​the evaporation tank 411, the water in the solution can evaporate more quickly. This not only accelerates the removal of water and improves the efficiency of the entire drying process, but also, combined with the previous solid-liquid separation and filtration processes, forms a complete system for efficiently separating water from mud and purifying the solution, further enhancing the low-temperature dryer 4's ability to process liquid components in waste drilling materials.

[0100] Furthermore, it also includes a partition 13, which is disposed in the evaporation tank 411. The partition 13 has a connecting hole 1301, which divides the evaporation tank 411 into a concentration chamber 412 and an evaporation chamber 413. The connecting hole 1301 is used to connect the concentration chamber 412 and the evaporation chamber 413. A pupil valve 14 is disposed on the connecting hole 1301. Both the concentration chamber 412 and the evaporation chamber 413 have a negative pressure hole 409. There are two one-way valves 15, which are disposed on one of the negative pressure holes 409 respectively. The bottom of the evaporation chamber 413 is a flap 16, which is rotatably disposed on the housing 401 and forms a drying chamber 402 with the housing 401. After the flap 16 rotates, it is used to discharge the residue in the evaporation chamber 413.

[0101] In this embodiment, the partition 13 divides the evaporation tank 411 into a concentration chamber 412 and an evaporation chamber 413, and the connection between the two chambers is controlled by a pupil valve 14 located on the connecting hole 1301. This design allows for precise regulation of the flow of the solution between the concentration chamber 412 and the evaporation chamber 413. In the concentration chamber 412, the solution undergoes initial evaporation under negative pressure, gradually increasing its concentration. Once a certain concentration is reached, the opening of the pupil valve 14 is controlled to allow the concentrated solution to flow into the evaporation chamber 413 for further evaporation. This process allows for flexible adjustment of the concentration and evaporation levels of the solution according to actual processing needs, improving the accuracy and controllability of liquid treatment in waste drilling materials and ensuring the stability and consistency of the treatment effect.

[0102] Both the concentration chamber 412 and the evaporation chamber 413 are equipped with negative pressure holes 409, and airflow is controlled by a one-way valve 15. This design allows the two chambers to operate independently under negative pressure while ensuring proper airflow. After initial evaporation in the concentration chamber 412, the solution enters the evaporation chamber 413 for further evaporation, fully utilizing the characteristic that water evaporates easily under negative pressure and improving overall evaporation efficiency. Simultaneously, by rationally controlling the flow and evaporation process of the solution between the two chambers, unnecessary energy consumption is avoided, energy utilization is improved, and the cost of waste drilling material disposal is reduced.

[0103] A flap 16 is installed at the bottom of the evaporation chamber 413, which can be rotated to discharge residues inside the evaporation chamber 413. This design allows for convenient and quick removal of residual solids after the evaporation process. Compared to traditional cleaning methods, the flap 16 design significantly reduces cleaning difficulty and time, improving equipment maintenance efficiency. Maintenance personnel only need to open the flap 16 to remove residues, reducing the risk of equipment failure due to untimely or difficult residue removal, extending the equipment's service life, and ensuring the continuous and stable operation of the low-temperature dryer 4.

[0104] Furthermore, the condenser 5 includes a condenser shell 501, which has a condenser cavity 502. A condenser plate 503 is inclinedly disposed in the condenser cavity 502. The condenser plate 503 has a guide groove 504 and a vent hole 505. A liquid collector 506 is disposed in the condenser cavity 502, and the guide groove 504 leads to the liquid collector 506.

[0105] In this embodiment, the condenser plate 503 is inclined within the condensation chamber 502, increasing the contact area and contact time between the steam and the condenser plate 503. When the gas containing water vapor enters the condensation chamber 502, it comes into full contact with the inclined condenser plate 503 during its ascent, and the water vapor rapidly liquefies into water droplets upon cooling. The inclined design allows the condensed water droplets to slide down naturally under gravity, preventing water droplets from accumulating on the condenser plate 503 and affecting subsequent condensation effects. This improves the overall condensation efficiency, enabling faster conversion of water vapor into liquid water, meeting the needs for moisture recovery and drying during the disposal of waste drilling materials.

[0106] The guide grooves 504 and vent holes 505 on the condenser plate 503 further optimize the condensation process. The vent holes 505 evenly guide the gas to all parts of the condenser plate 503, preventing gas concentration in any one area and ensuring full contact between the steam and the condenser plate 503. Simultaneously, the guide grooves 504 provide a dedicated channel for the condensed water droplets, allowing them to flow quickly towards the collector 506, preventing them from flowing randomly on the condenser plate 503, reducing the possibility of revaporization, and further improving the condensation effect and water collection efficiency.

[0107] The liquid collector 506 is located within the condensation chamber 502, and the guide channel 504 leads to the liquid collector 506. This design ensures that the condensed water can be accurately and efficiently collected into the liquid collector 506. The coordinated operation of the condenser plate 503 and the liquid collector 506 helps to achieve better gas-liquid separation. The inclined condenser plate 503 causes the condensed water to slide down quickly, while the uncondensed gas continues to rise or be discharged within the condensation chamber 502. The guide channel 504 guides the water droplets to the liquid collector 506, further preventing the re-mixing of gas and liquid and ensuring thorough gas-liquid separation.

[0108] The condenser 5 features a relatively simple and clear structural design, facilitating cleaning and maintenance. The positions of the inclined condenser plate 503 and the liquid collector 506 are clearly defined, allowing maintenance personnel to easily clean any dirt or impurities on the condenser plate 503 that affect condensation. Similarly, the liquid collector 506 is easy to inspect and clean, reducing the increased maintenance difficulty caused by complex equipment structures. This maintenance-friendly design reduces equipment downtime, lowers maintenance costs, and improves equipment availability and reliability.

[0109] Furthermore, the liquid collector 506 is located at the bottom of the condensation chamber 502 and also includes a U-shaped tube 17. The liquid collector 506 leads to the U-shaped tube 17, and the U-shaped tube 17 leads to the liquid collection pump 18.

[0110] In this embodiment, the liquid collector 506 leads to the U-shaped tube 17, whose unique shape plays an important role in buffering and preventing backflow. When liquid flows from the liquid collector 506 into the U-shaped tube 17, a certain amount of liquid remains in the U-shaped tube 17, forming a liquid seal. On the one hand, this liquid seal can buffer the impact force during the liquid flow process, preventing the liquid from impacting the subsequent liquid collection pump 18 due to excessive flow rate, thus protecting the liquid collection pump 18 and extending its service life. On the other hand, the liquid seal can effectively prevent backflow of liquid when pressure fluctuations occur during equipment operation, ensuring that the liquid can only flow in the predetermined direction, from the liquid collector 506 through the U-shaped tube 17 to the liquid collection pump 18, ensuring the unidirectionality and stability of the liquid delivery path, and making the entire liquid collection and delivery system more reliable. The U-shaped tube 17 buffers and stabilizes the liquid flow, making the liquid flow and pressure entering the collecting pump 18 more uniform and stable. This avoids abnormal situations such as dry running or overload of the collecting pump 18 caused by unstable liquid inlet, ensuring that the collecting pump 18 can operate stably under suitable working conditions, maximizing its pumping capacity, improving its working efficiency, and reducing wear caused by abnormal working conditions, thus extending its service life and reducing equipment maintenance costs. Because of the liquid seal inside the U-shaped tube 17, some impurities that might flow with the liquid will settle at the bottom of the U-shaped tube 17 under gravity, making them less likely to enter the collecting pump 18 with the liquid. This reduces the possibility of impurities accumulating and clogging inside the collecting pump 18, ensuring its normal operation, further improving the reliability of the entire liquid collection and transportation system, reducing downtime due to equipment failure, and contributing to the continuous and stable operation of the waste drilling waste treatment device.

[0111] Furthermore, it also includes a second baffle 19, which is disposed in the drying chamber 402 and located on one side of the mud outlet 408. The second baffle 19 is used to block part of the screen holes at the bottom of the rotating member 403 near the mud outlet 408 and to block all the screen holes of at least one isolation chamber 404.

[0112] In this embodiment, the bottom sieve holes of the connected isolation chamber 404 effectively prevent the negative pressure in the drying chamber 402 from leaking through these sieve holes. When the sludge is discharged from the sludge outlet 408, without the obstruction of the second baffle 19, outside air can easily enter the drying chamber 402 through the sieve holes, disrupting the stability of the negative pressure environment. The presence of the second baffle 19 acts like a barrier, blocking the channels that may lead to negative pressure leakage, ensuring that the drying chamber 402 always maintains a stable negative pressure state, providing a continuous and effective environmental condition for the rapid evaporation of moisture in the material, thereby improving the efficiency and effectiveness of the entire drying process.

[0113] Maintaining a uniform and stable negative pressure environment throughout the drying chamber 402 is crucial for the normal operation of the equipment. By blocking the bottom sieve holes of a specific isolation chamber 404, the second baffle 19 helps ensure that the negative pressure level remains consistent across all areas. Fluctuations or unevenness in negative pressure can lead to inconsistent drying levels in different areas, affecting the uniformity of the processing results. The precise blocking effect of the second baffle 19 ensures that the negative pressure environment is evenly distributed within the drying chamber 402, guaranteeing that each batch of waste drilling material is dried under the same conditions, thus improving the stability and reliability of the processing results.

[0114] Furthermore, the dosing component 3 includes a flocculation pipe 301, which leads to the mixer 2 and is used to introduce flocculant into the mixer 2. A coagulant aid pipe 302 leads to the flocculation pipe 301 and is used to introduce coagulant aid into the flocculation pipe 301 and to initially mix the coagulant aid with the flocculant.

[0115] In this embodiment, the synergistic effect of flocculants and coagulants in the treatment of abandoned drilling materials can significantly improve the solid-liquid separation effect. The coagulant aid pipe 302 introduces the coagulant aid into the flocculation pipe 301, allowing the two to begin preliminary mixing before entering the mixer 2. The coagulant aid can alter the surface properties of particles in the drilling mud, creating better conditions for the flocculant to function, thereby promoting faster and more effective binding of the flocculant with suspended particles in the drilling mud, forming larger and denser flocs.

[0116] This pre-mixing within the flocculation pipe 301 ensures that the reagents entering the mixer 2 are in an optimal reaction state, significantly improving the reaction efficiency between the reagents and waste drilling mud in the mixer 2. Compared to adding the two reagents directly to the mixer 2 separately, mixing them first in the flocculation pipe 301 allows the reagents to take effect more quickly within the mixer 2, reducing reaction time and increasing the speed of the entire treatment process.

[0117] After the flocculant and coagulant aid are initially mixed in the flocculation pipe 301, they enter the mixer 2 as a relatively uniform mixture. In the mixer 2, because the agents have already been initially mixed, they can be more evenly dispersed in the waste drilling mud. This ensures that every part of the mud comes into contact with the appropriate proportion of flocculant and coagulant aid, avoiding situations where uneven agent distribution leads to poor flocculation in some areas.

[0118] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A waste drilling material treatment device, characterized in that, include: Mud receiving component (1); Mixer (2), the mud receiving device (1) leads to the mixer (2); Dosing device (3), which leads to the mixer (2); Low-temperature dryer (4), the mixer (2) is connected to the low-temperature dryer (4); Condenser (5), the low-temperature dryer (4) is connected to the condenser (5); Vacuum pump (6), the vacuum pump (6) is used to maintain the vacuum environment of the condenser (5) and the low temperature dryer (4); The low-temperature dryer (4) includes: The housing (401) has a drying chamber (402) having an inlet (407), a mud outlet (408) and a negative pressure hole (409). The mixer (2) is connected to the inlet (407), the mud outlet (408) is used for mud discharge, and the negative pressure hole (409) is connected to the condenser (5). A rotating component (403) is rotatably disposed within the drying chamber (402). The rotating component (403) has several isolation chambers (404). There are four isolation chambers (404) arranged in a circle. The rotating component (403) is configured such that when rotating, the isolation chambers (404) are connected to or disconnected from the inlet (407) in sequence. A swinging member (405) is swinging on the cavity wall of the isolation cavity (404); The inlet (407) and the mud outlet (408) are respectively connected to two adjacent isolation chambers (404). The negative pressure hole (409) is located on the side wall of the drying chamber (402) and below the rotating part (403). The system also includes: A first baffle (12) is disposed inside the drying chamber (402) and located around the rotating member (403). After the rotating member (403) rotates, the first baffle (12) blocks the isolation chamber (404) and forms a solid-liquid separation chamber (410) with the rotating member (403). The first baffle (12) has a notch (1201). After the rotating member (403) rotates, the isolation chamber (404) is connected to or disconnected from the notch (1201). The notch (1201) is connected to the mud outlet (408). There is a gap (406) between the swing member (405) and the cavity wall of the isolation chamber (404). The system also includes: A movable top piece (7) is slidably disposed in the drying chamber (402). The movable top piece (7) is configured such that after sliding, it slides into the gap (406) and abuts against the swing piece (405). After the movable top piece (7) abuts against the swing piece (405), the swing piece (405) is perpendicular to the wall of the isolation chamber (404). An elastic element, one end of which acts on the swinging element (405) and the other end of which acts on the cavity wall of the isolation cavity (404), provides a force to reduce the gap (406).

2. The waste drilling waste treatment device according to claim 1, characterized in that, Also includes: A scraper (9) is slidably disposed in the isolation cavity (404). The bottom of the scraper (9) abuts against the bottom of the isolation cavity (404). The scraper (9) has a guide groove. The cavity wall of the isolation cavity (404) has a guide portion. The guide groove is used to accommodate the guide portion.

3. The waste drilling waste treatment device according to claim 2, characterized in that, The scraper (9) has a flexible deformation part (902), which is pressed onto the swing member (405).

4. The waste drilling waste treatment device according to claim 3, characterized in that, The scraper (9) has a threaded hole (901) and further includes: A screw (10) is threaded in the threaded hole (901), and the end of the screw (10) has a first connecting part (1001). A sliding member (11) is slidably and rotatably disposed in the drying chamber (402). The end of the sliding member (11) has a second connecting part (1101). After the sliding member (11) slides, the first connecting part (1001) is used to connect with the second connecting part (1101). After the first connecting part (1001) and the second connecting part (1101) are connected, the sliding member (11) is used to drive the screw (10) to rotate.

5. The waste drilling waste treatment device according to claim 4, characterized in that, Also includes: A rotating wheel (20) is rotatably mounted on the housing (401), and a sliding member (11) is slidably mounted on the rotating wheel (20). The rotating wheel (20) is used to drive the sliding member (11) to rotate. A linear drive is disposed on the housing (401) for driving the slider (11) to slide.

6. The waste drilling waste treatment device according to claim 1, characterized in that, The bottom of the rotating component (403) is a sieve plate with sieve holes. The sieve holes are used to filter the solution in the solid-liquid separation chamber (410). The rotating component (403) and the inner wall of the drying chamber (402) form an evaporation tank (411). The solid-liquid separation chamber (410) and the evaporation tank (411) are connected through the sieve holes and are located below the rotating component (403). The evaporation tank (411) is connected to the negative pressure hole (409). The component also includes: The second baffle (19) is disposed in the drying chamber (402) and located on one side of the mud outlet (408). The second baffle (19) is used to block part of the screen holes at the bottom of the rotating member (403) near the mud outlet (408) and to block all the screen holes of at least one of the isolation chambers (404). A partition (13) is disposed in the evaporation tank (411). The partition (13) has a connecting hole (1301). The partition (13) divides the evaporation tank (411) into a concentration chamber (412) and an evaporation chamber (413). The connecting hole (1301) is used for communication between the concentration chamber (412) and the evaporation chamber (413). A pupil valve (14) is provided on the connecting hole (1301); One-way valve (15), both the concentration chamber (412) and the evaporation chamber (413) have a negative pressure hole (409), and the one-way valve (15) is disposed on the negative pressure hole (409); The evaporation chamber (413) has a crystal outlet, and the flap (16) is disposed at the crystal outlet. The flap (16) is rotatably disposed on the housing (401). After the flap (16) rotates, it is used to discharge the residue in the evaporation chamber (413).

7. The waste drilling waste treatment device according to claim 1, characterized in that, The condenser (5) includes: A condenser shell (501) has a condenser cavity (502), a negative pressure hole (409) leads to the condenser cavity (502), and a vacuum pump (6) provides negative pressure to the condenser cavity (502). A condenser plate (503) is inclinedly disposed in the condensation chamber (502). The condenser plate (503) has a flow guide groove (504) and a gas guide hole (505). The condenser plate (503) consists of several layers. The gas guide hole (505) on the condenser plate (503) faces the flow guide groove (504) of the adjacent layer. A liquid collector (506) is disposed in the condensation chamber (502), and the guide channel (504) leads to the liquid collector (506). The liquid collector (506) is located at the bottom of the condensation chamber (502) and further includes: U-tube (17), the liquid collector (506) leads to the U-tube (17); A liquid collecting pump (18), and the U-shaped pipe (17) leads to the liquid collecting pump (18). The dosing device (3) includes: A flocculation pipe (301) leads to the mixer (2) and is used to introduce flocculant into the drying chamber (402); A coagulant aid pipe (302) leads to the flocculation pipe (301) and is used to introduce a coagulant aid into the flocculation pipe (301) and to initially mix the coagulant aid with the flocculant.