Electro-hydraulic valve group maintenance oil recovery device

Abstract

The utility model provides an electro-hydraulic valve group maintenance oil liquid recovery device which comprises an extrusion cylinder, an oil liquid recovery device and an oil liquid recovery device, the extrusion cylinder extends in the first preset direction, and an extrusion space and a feeding port communicated with the extrusion space are formed in the extrusion cylinder; the extrusion assembly is arranged in the extrusion space, and the extrusion assembly is used for extruding the oil-containing substances; the collecting assembly is arranged at the bottom of the extrusion assembly, and the collecting assembly is used for collecting oil liquid generated when the extrusion assembly extrudes the oil-containing substances; the input assembly is used for inputting oil-containing substances in the electro-hydraulic valve group into the extrusion cylinder, the input assembly is arranged on the extrusion cylinder, the output end of the input assembly communicates with the extrusion space, the input assembly directly conveys the oil-containing substances in the electro-hydraulic valve group into the extrusion space of the extrusion cylinder, and the extrusion assembly intensively extrudes the oil-containing substances; the oil liquid is recycled through the bottom collecting assembly, a closed treatment process is formed, and the oil liquid is prevented from leaking to pollute the working environment.

Description

Technical Field

[0001] This utility model relates to the field of oil recovery technology, specifically to an oil recovery device for electro-hydraulic valve assembly maintenance. Background Technology

[0002] With hydraulic systems widely used in industrial equipment, construction machinery, aerospace, and automotive manufacturing, electro-hydraulic valve assemblies, as core components controlling the direction, pressure, and flow of hydraulic systems, directly affect the performance and safety of the entire system due to their operational stability. However, long-term operation under complex conditions can easily lead to problems such as wear of internal seals, aging of electromagnets, or valve core jamming. Regular disassembly, inspection, and maintenance of electro-hydraulic valve assemblies are necessary. During maintenance, residual hydraulic oil or other working media may leak due to gravity or disassembly, resulting in oil waste, potential environmental contamination, and increased cleaning and maintenance costs later.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide an electro-hydraulic valve assembly maintenance oil recovery device to solve the technical problem in the related technology that during the maintenance of electro-hydraulic valve assemblies, residual hydraulic oil or other working media inside will leak due to gravity or disassembly operations, which not only causes oil waste but may also pollute the working environment and increase the cost of subsequent cleaning and maintenance.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: It provides an electro-hydraulic valve assembly maintenance oil recovery device, comprising: a squeezing cylinder extending along a first preset direction, the squeezing cylinder having a squeezing space inside, and a feed inlet communicating with the squeezing space; a squeezing assembly disposed within the squeezing space, the squeezing assembly being used to squeeze oily substances; a collecting assembly disposed at the bottom of the squeezing assembly, the collecting assembly being used to collect the oil generated by the squeezing assembly squeezing the oily substances; and an input assembly used to input the oily substances from the electro-hydraulic valve assembly into the squeezing cylinder, the input assembly being disposed on the squeezing cylinder, and the output end of the input assembly communicating with the squeezing space.

[0006] Further, the input component includes: a liquid extraction tank, which is installed on top of the extrusion cylinder and extends along the extension direction of the extrusion cylinder; the liquid extraction tank has a liquid extraction chamber; a first partition, which is installed inside the liquid extraction chamber; a telescopic tube, which passes through the liquid extraction tank and communicates with the liquid extraction chamber; a flange, which is connected to the input end of the telescopic tube and is installed at the oil outlet of the electro-hydraulic valve assembly; a liquid extraction pump, which is installed on the first partition and whose input end is connected to the output end of the telescopic tube; and an injection pipe, which extends along a second preset direction; whose input end is connected to the output end of the liquid extraction pump, and whose output end passes through the first partition into the extrusion space.

[0007] Furthermore, the collection assembly includes: a recovery box, which is located at the bottom of the extrusion cylinder and extends along the extension direction of the extrusion cylinder; the recovery box has a collection chamber and a slag discharge port communicating with the collection chamber; the collection chamber is connected to the extrusion space; a second partition, which has a guide hole and is located inside the collection chamber; the second partition extends along the radial direction of the extrusion cylinder and is used to divide the collection chamber into an impurity separation chamber and an oil sedimentation chamber; the impurity separation chamber is located above the second partition, and the oil sedimentation chamber is located below the second partition; the impurity separation chamber is used to collect the oil and impurities after extrusion; the oil sedimentation chamber is used to collect the oil after sedimentation and filtration.

[0008] Furthermore, the collection assembly also includes a guide plate, which is installed inside the collection chamber and is inclined. The guide plate is used to transport impurities to the slag discharge port.

[0009] Furthermore, the collection assembly also includes: a coarse filter screen installed in the oil settling chamber, used to filter the oil produced after extrusion on one side; a fine filter screen installed in the oil settling chamber, located below the coarse filter screen, with the fine filter screen and the coarse filter screen spaced apart along the extension direction of the recovery box; and an activated carbon adsorption layer disposed in the oil settling chamber, located below the fine filter screen, with the activated carbon adsorption layer and the fine filter screen spaced apart along the extension direction of the recovery box.

[0010] Furthermore, the extrusion assembly includes: a hydraulic extrusion plate, which is movably disposed inside the extrusion cylinder along the extension direction of the extrusion cylinder, and is used to extrude oil-containing substances within the electro-hydraulic valve assembly; and a hydraulic drive system, which is drivenly connected to the hydraulic extrusion plate to move the hydraulic extrusion plate to extrude oil-containing substances within the electro-hydraulic valve assembly.

[0011] Furthermore, the collection component also includes an oil extraction port, which is connected to the oil sedimentation chamber.

[0012] Beneficial effects:

[0013] 1. The input component directly transports the oily substance in the electro-hydraulic valve assembly to the extrusion space of the extrusion cylinder. The extrusion component performs centralized extrusion of the oily substance, and the oil is recovered by the bottom collection component, forming a closed treatment process to avoid oil leakage and pollution of the working environment. The integrated layout of the input component and the extrusion cylinder simplifies the transfer path of the oily substance, realizes the integrated operation of "input-extrusion-collection", and reduces the risk of secondary pollution caused by manual intervention.

[0014] 2. The collection chamber of the collection component is divided into an impurity separation chamber and an oil sedimentation chamber by a second partition. The squeezed oil and impurities first enter the impurity separation chamber for preliminary sedimentation, and the oil flows into the oil sedimentation chamber through the guide hole for secondary purification. This design realizes the step-by-step separation of oil and impurities, reducing the risk of impurities clogging the subsequent filter components.

[0015] 3. The inclined arrangement of the guide plate guides the solid residue in the impurity separation chamber to the slag discharge port for centralized discharge, avoiding the accumulation of impurities that affect the fluidity of the oil; at the same time, the cooperation between the guide plate and the second baffle forms a directional flow path, accelerating the separation efficiency of impurities and oil. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an electro-hydraulic valve assembly maintenance oil recovery device used in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of an electro-hydraulic valve assembly maintenance oil recovery device used in an embodiment of this utility model.

[0018] The above figures include the following reference numerals:

[0019] 1. Recycling bin; 2. Squeezing cylinder; 3. Telescopic pipe; 4. Flange; 5. Second partition; 6. Liquid pump; 7. Injection pipe; 8. Liquid tank. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] According to Embodiment 1 of this utility model, an electro-hydraulic valve assembly maintenance oil recovery device is provided. Please refer to [link / reference]. Figures 1 to 2The device includes: a compression cylinder 2, which extends along a first preset direction and has a compression space inside, and a feed inlet communicating with the compression space; a compression assembly, which is disposed inside the compression space and is used to compress oily substances; a collection assembly, which is disposed at the bottom of the compression assembly and is used to collect the oil produced by the compression assembly compressing the oily substances; and an input assembly, which is used to input the oily substances in the electro-hydraulic valve assembly into the compression cylinder 2 and is disposed on the compression cylinder 2, with the output end of the input assembly communicating with the compression space.

[0022] By adopting the above technical solution, the input component directly transports the oily substance in the electro-hydraulic valve group to the extrusion space of the extrusion cylinder 2. The extrusion component performs centralized extrusion of the oily substance, and the oil is recovered by the bottom collection component, forming a closed treatment process. This avoids oil leakage and pollution of the working environment. The integrated layout of the input component and the extrusion cylinder simplifies the transfer path of the oily substance, realizes the integrated operation of "input-extrusion-collection", and reduces the risk of secondary pollution caused by manual intervention.

[0023] Please refer to Figure 1 and Figure 2 The input components include: a liquid extraction tank 8, which is installed on top of the extrusion cylinder 2 and extends along the extension direction of the extrusion cylinder 2; a first partition plate, which is installed inside the liquid extraction chamber; a telescopic tube 3, which passes through the liquid extraction tank 8 and communicates with the liquid extraction chamber; a flange 4, which is connected to the input end of the telescopic tube 3 and is installed at the oil outlet of the electro-hydraulic valve assembly; a liquid extraction pump 6, which is installed on the first partition plate and whose input end is connected to the output end of the telescopic tube 3; and an injection pipe 7, which extends along a second preset direction; whose input end is connected to the output end of the liquid extraction pump 6, and whose output end passes through the first partition plate into the extrusion space.

[0024] By adopting the above technical solution, the input component directly transports the oily substance in the electro-hydraulic valve group to the extrusion space of the extrusion cylinder 2. The extrusion component performs centralized extrusion of the oily substance, and the oil is recovered by the bottom collection component, forming a closed treatment process to avoid oil leakage and pollution of the working environment. The integrated layout of the input component and the extrusion cylinder 2 simplifies the transfer path of the oily substance, realizes the integrated operation of "input-extrusion-collection", and reduces the risk of secondary pollution caused by manual intervention.

[0025] Please refer to Figure 1 and Figure 2The collection assembly includes: a recovery box 1, which is located at the bottom of the extrusion cylinder 2 and extends along the extension direction of the extrusion cylinder 2. The recovery box 1 has a collection chamber and a slag discharge port communicating with the collection chamber. The collection chamber is connected to the extrusion space. A second partition 5 has a guide hole and is located inside the collection chamber. The second partition 5 extends along the radial direction of the extrusion cylinder 2 and is used to divide the collection chamber into an impurity separation chamber and an oil sedimentation chamber. The impurity separation chamber is located above the second partition 5, and the oil sedimentation chamber is located below the second partition 5. The impurity separation chamber is used to collect the oil and impurities after extrusion, and the oil sedimentation chamber is used to collect the oil after sedimentation and filtration.

[0026] By adopting the above technical solution, the collection chamber 1 of the collection component is divided into an impurity separation chamber and an oil sedimentation chamber by the second partition 5. The squeezed oil and impurities first enter the impurity separation chamber for preliminary sedimentation, and the oil flows into the oil sedimentation chamber through the guide hole for secondary purification. This design achieves the step-by-step separation of oil and impurities, reducing the risk of impurities clogging subsequent filter components.

[0027] The collection assembly also includes a guide plate, which is installed inside the collection chamber and is inclined. The guide plate is used to transport impurities to the slag discharge port.

[0028] By adopting the above technical solution, the inclined arrangement of the guide plate guides the solid residue in the impurity separation chamber to the slag discharge port for centralized discharge, avoiding the accumulation of impurities that affect the fluidity of the oil. At the same time, the cooperation between the guide plate and the second baffle 5 forms a directional flow path, accelerating the separation efficiency of impurities and oil.

[0029] Please refer to Figure 1 and Figure 2 The collection assembly also includes: a coarse filter screen, which is installed in the oil settling chamber and is used to filter the oil produced after extrusion on one side; a fine filter screen, which is installed in the oil settling chamber and is located below the coarse filter screen, with the fine filter screen and the coarse filter screen spaced apart along the extension direction of the recovery box 1; and an activated carbon adsorption layer, which is set in the oil settling chamber and is located below the fine filter screen, with the activated carbon adsorption layer and the fine filter screen spaced apart along the extension direction of the recovery box 1.

[0030] By adopting the above technical solution, the coarse filter intercepts large particulate impurities in the oil, the fine filter further filters out tiny particles, and the activated carbon adsorption layer removes colloids and chemical contaminants from the oil. Through three-stage filtration and purification, the cleanliness of the recovered oil is significantly improved, meeting reuse standards.

[0031] Please refer to Figure 1 and Figure 2The extrusion assembly includes: a hydraulic extrusion plate, which is movably disposed inside the extrusion cylinder 2 along the extension direction of the extrusion cylinder 2, and is used to extrude oil-containing substances in the electro-hydraulic valve assembly; and a hydraulic drive system, which is drivenly connected to the hydraulic extrusion plate to drive the hydraulic extrusion plate to move, so as to extrude oil-containing substances in the electro-hydraulic valve assembly.

[0032] By adopting the above technical solution, the hydraulic extrusion plate of the extrusion assembly moves along the extension direction of the extrusion cylinder 2 under the action of the hydraulic drive system, applying uniform pressure to the oil-containing substance and fully extruding the adsorbed oil. The controllable pressure output of the hydraulic drive system avoids excessive extrusion that could damage the filter media, ensuring maximum oil recovery rate.

[0033] The collection component also includes an oil extraction port, which is connected to the oil sedimentation chamber.

[0034] By adopting the above technical solution, the oil extraction port is connected to the oil sedimentation chamber, facilitating the extraction of purified oil via external suction equipment. The location of the oil extraction port is designed to avoid areas where impurities accumulate, preventing the introduction of residual impurities during the extraction process and ensuring the purity of the recovered oil.

[0035] Example 2:

[0036] like Figures 1-2 As shown in the figure, the electro-hydraulic valve assembly maintenance oil recovery device provided in this embodiment includes a recovery tank 1 and a pumping tank 8. The recovery tank 1 is provided with a squeezing cylinder 2, and the squeezing cylinder 2 is connected to a flange 4 through a telescopic pipe 3. The pumping tank 8 inside the recovery tank 1 is provided with a second partition 5, and a pumping pump 6 is installed on the second partition 5. The pumping pump 6 is connected to an injection pipe 7.

[0037] The telescopic tube 3 has a retractable and foldable corrugated structure.

[0038] The pump 6 is connected to the injection pipe 7 via a pipeline.

[0039] like Figures 1-2 As shown, the telescopic pipe 3 is made of rubber corrugated hose, which has good flexibility and sealing performance. It can be flexibly extended and retracted to adapt to different connection distances, preventing oil leakage while facilitating the installation and commissioning of the equipment.

[0040] The extrusion cylinder 2 is equipped with a hydraulic extrusion plate, which is driven by a hydraulic system to extrude oily substances entering the extrusion zone, so that the oil flows out fully and improves the oil recovery efficiency.

[0041] The second partition 5 divides the inside of the recycling box 1 into two chambers. One chamber is used to receive the squeezed oil and impurities, and the other chamber is used to collect the oil after preliminary sedimentation and filtration, so as to realize the classified recycling treatment of the oil and improve the quality of the recycled oil.

[0042] The pump 6 is a centrifugal pump, and its impeller and pump body are made of oil-resistant and corrosion-resistant engineering plastics, which are suitable for conveying various oil media. The rated flow rate is 50L / min and the head is 10m, which can meet the oil extraction needs in most industrial scenarios.

[0043] A filter screen with a pore size of 0.3mm is installed at the inlet of the liquid pump 6, which can effectively prevent small impurities in the oil from entering the liquid pump 6, avoiding blockage and wear. The liquid pump 6 is equipped with a frequency converter, which can automatically adjust the speed according to the oil level in the recovery tank 1 to achieve energy-saving operation. When the liquid level is high, the liquid pump 6 runs at the rated speed to quickly extract the oil.

[0044] When the liquid level is low, the speed is automatically reduced to reduce energy consumption. In addition, the liquid pump 6 and the injection pipe 7 are connected flexibly, which can reduce the vibration transmission during the operation of the liquid pump 6 and improve the stability and service life of the equipment.

[0045] Flange 4 adopts the internationally recognized ANSI standard flange with a specification of DN50, which is suitable for the connection of various industrial pipelines and equipment. The flange face adopts a raised face sealing form, and is equipped with an oil-resistant rubber gasket to ensure the sealing and reliability of the connection. The bolt hole distribution of the flange conforms to the standard spacing, which facilitates quick alignment and installation with other equipment or pipelines.

[0046] The flange is equipped with a non-slip handle on the outside, which makes it easier for operators to apply force during installation and disassembly, improving work efficiency. At the same time, the flange surface is galvanized, which has good rust resistance and is suitable for harsh industrial environments such as humid and dusty environments.

[0047] During operation, the external oily substance is first connected to the external equipment or pipeline through flange 4. Under the action of gravity or external conveying device, the oily substance enters the extrusion cylinder 2 through the telescopic pipe 3. The flexibility of the telescopic pipe 3 allows it to adapt to connections at different angles and distances, ensuring the smooth delivery of the oily substance.

[0048] After entering the extrusion cylinder 2, the hydraulic system drives the hydraulic extrusion plate to move downward according to the preset parameters to extrude the oily substance. During the extrusion process, the pressure sensor monitors the extrusion pressure in real time and feeds it back to the control system to ensure that the pressure is stable within the set range. The extruded oil and residual impurities flow into the impurity separation chamber of the recovery box 1. Due to the inclined design of the guide plate, the oil and impurities flow towards the slag discharge port under the action of gravity. Larger impurity particles settle at the bottom of the chamber, while the oil flows into the oil sedimentation chamber through the guide hole on the second partition 5.

[0049] In the oil settling chamber, the oil first passes through a coarse filter to remove larger particulate impurities, then flows through a fine filter to further filter out fine suspended solids, and finally passes through an activated carbon adsorption layer to adsorb some of the odors and pigments in the oil. The oil after preliminary sedimentation and filtration is stored in the oil settling chamber.

[0050] When the oil level reaches the set height, the level sensor sends a signal to the control system to start the pump 6. The pump 6 draws in oil through the inlet filter, pressurizes it by the impeller, and then delivers it to the designated storage tank or processing equipment through the injection pipe 7. During the delivery process, the frequency converter automatically adjusts the speed of the pump according to the changes in the oil level to ensure the stability and efficiency of the delivery process.

[0051] When impurities accumulate to a certain amount at the bottom of the impurity separation chamber, the operator can open the automatic valve of the slag discharge port through the control system to discharge the impurities and complete one oil recovery process. The whole process is highly automated, with each component working together to achieve efficient extrusion of oily substances, classification and recovery of oil, and convenient discharge of impurities, which greatly improves the efficiency and quality of oil recovery and reduces the labor intensity of operators.

[0052] The second partition 5 divides the interior of the recycling bin 1 into at least two chambers.

[0053] The extrusion cylinder 2 is equipped with an extrusion mechanism inside.

[0054] The extrusion cylinder 2 has an elastic negative pressure structure.

[0055] The top of the liquid extraction tank 8 has a breathable structure.

[0056] Flange 4 is used to connect external equipment, and the two ends of the telescopic tube 3 are respectively sealed to the extrusion cylinder 2 and flange 4.

[0057] It should be noted that the extrusion assembly in this application uses existing technology. The working principle of this type of extrusion equipment is that when the material to be extruded is input into the extrusion equipment, the material is extruded by the hydraulic system. This application does not involve the modification of this type of equipment, so it will not be described in detail.

[0058] The working process of the electro-hydraulic valve assembly maintenance oil recovery device provided in this embodiment is as follows:

[0059] Step 1: The telescopic pipe 3 is made of rubber corrugated hose, which has good flexibility and sealing performance. It can be flexibly extended and retracted to adapt to different connection distances, preventing oil leakage while facilitating the installation and debugging of equipment.

[0060] Step 2: The extrusion cylinder 2 is equipped with a hydraulic extrusion plate, which is driven by a hydraulic system to extrude oily substances entering the extrusion zone, so that the oil flows out fully and improves the oil recovery efficiency.

[0061] Step 3: The second partition 5 divides the inside of the recycling box 1 into two chambers. One chamber is used to receive the squeezed oil and impurities, and the other chamber is used to collect the oil after preliminary sedimentation and filtration, so as to realize the classified recycling treatment of the oil and improve the quality of the recycled oil.

[0062] The pump 6 is a centrifugal pump with a rated flow rate of 50L / min and a head of 10m. It can efficiently extract oil from the recovery tank 1 and transport it to a designated storage tank or processing equipment through the injection pipe 7.

[0063] Step 4: The flange 4 facilitates quick connection and disassembly with other equipment or pipelines, and is suitable for various industrial scenarios.

[0064] During operation, external oily substances enter the extrusion cylinder 2 through flange 4 and telescopic pipe 3. After being squeezed by the hydraulic extrusion plate, the oil flows into the recovery tank 1 and is separated under the action of the second partition 5. The pump 6 extracts and transports the pre-treated oil through the injection pipe 7 to complete the oil recovery process.

[0065] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0066] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0067] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0068] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0069] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An electro-hydraulic valve group servicing oil recovery device, characterized by include: The extrusion cylinder (2) extends along a first preset direction, and the extrusion cylinder (2) is provided with an extrusion space and a feed inlet communicating with the extrusion space; An extrusion assembly is disposed within the extrusion space and is used to extrude oil-containing substances. A collection component is disposed at the bottom of the extrusion component, and the collection component is used for the oil produced by the extrusion component extruding oily substances; An input component is used to input oily substances from the electro-hydraulic valve assembly into the extrusion cylinder (2). The input component is disposed on the extrusion cylinder (2), and the output end of the input component is connected to the extrusion space.

2. The electro-hydraulic valve group servicing oil recovery apparatus according to claim 1, characterized in that, The input component includes: A liquid extraction tank (8) is installed on the top of the extrusion cylinder (2). The liquid extraction tank (8) extends along the extension direction of the extrusion cylinder (2). The liquid extraction tank (8) is provided with a liquid extraction chamber. A first partition is installed inside the liquid extraction chamber; Telescopic tube (3), the telescopic tube (3) passes through the liquid extraction tank (8) and is connected to the liquid extraction chamber; Flange (4), the flange (4) is connected to the input end of the telescopic pipe (3), and the flange (4) is installed at the oil outlet of the electro-hydraulic valve assembly; A liquid pump (6) is installed on the first partition plate, and the input end of the liquid pump (6) is connected to the output end of the telescopic tube (3). An injection tube (7) extends along a second preset direction; the input end of the injection tube (7) is connected to the output end of the pump (6), and the output end of the injection tube (7) passes through the first partition into the compression space.

3. The electro-hydraulic valve pack service oil recovery device of claim 2, wherein, The collection component includes: A recycling box (1) is provided at the bottom of the extrusion cylinder (2). The recycling box (1) extends along the extension direction of the extrusion cylinder (2). The recycling box (1) is provided with a collection chamber and a slag discharge port communicating with the collection chamber. The collection chamber is communicating with the extrusion space. The second partition (5) has a guide hole and is disposed in the collection chamber. The second partition (5) extends in the radial direction of the extrusion cylinder (2). The second partition (5) is used to divide the collection chamber into an impurity separation chamber and an oil sedimentation chamber. The impurity separation chamber is located above the second partition (5), and the oil sedimentation chamber is located below the second partition (5). The impurity separation chamber is used to collect the oil and impurities after extrusion. The oil sedimentation chamber is used to collect the oil after sedimentation and filtration.

4. The electro-hydraulic valve group servicing oil recovery apparatus of claim 3, wherein, The collection component also includes: A guide plate is installed inside the collection chamber and is inclined. The guide plate is used to transport the impurities to the slag discharge port.

5. The electro-hydraulic valve pack service oil recovery device of claim 4, wherein, The collection component also includes: A coarse filter screen is installed inside the oil settling chamber and is used to filter the oil produced after extrusion on one side. A fine filter screen is installed inside the oil settling chamber. The fine filter screen is located below the coarse filter screen. The fine filter screen and the coarse filter screen are spaced apart along the extension direction of the recovery tank (1). An activated carbon adsorption layer is disposed in the oil sedimentation chamber and located below the fine filter screen. The activated carbon adsorption layer and the fine filter screen are spaced apart along the extension direction of the recovery box (1).

6. The electro-hydraulic valve pack service oil recovery device of claim 5, wherein, The extrusion assembly includes: A hydraulic extrusion plate is movably disposed inside the extrusion cylinder (2) along the extension direction of the extrusion cylinder (2), and the hydraulic extrusion plate is used to extrude oil-containing substances in the electro-hydraulic valve assembly; A hydraulic drive system is connected to the hydraulic extrusion plate to drive the hydraulic extrusion plate to move, thereby extruding the oil-containing substance in the electro-hydraulic valve assembly.

7. The electro-hydraulic valve pack service oil recovery device of claim 3, wherein, The collection component further includes an oil extraction port, which is connected to the oil sedimentation chamber.

Images