Treatment line convenient for extracting synthetic ester in activated clay

Abstract

The invention belongs to the technical field of synthetic ester treatment and application, and particularly relates to a treatment line for conveniently extracting synthetic ester in activated clay. Traditional waste white clay treated in steps is changed into assembly line type treatment, the single-row chain conveying mechanism is used for continuously receiving the waste white clay conveyed from the raw material conveying auger, the extraction tank is used for extracting the waste white clay in the moved containing barrel, the centrifugal mechanism is used for spin-drying the waste white clay, and meanwhile, the waste white clay can be separated from the raw material conveying auger through the centrifugal mechanism. The waste carclazyte is poured out of the containing barrel by utilizing the guide seat, so that the waste carclazyte is conveyed to the washing tank through the material receiving auger and the elevator, and the whole extraction of synthetic ester and the regeneration of the activated carclazyte are completed under the subsequent work of drying and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of synthetic ester processing and application, and in particular relates to a processing line for facilitating the extraction of synthetic ester from activated clay. Background Art

[0002] Activated clay is an adsorbent made from attapulgite clay as the main raw material. It is an ideal substitute for activated carbon and is widely used in the decolorization and refining process of various vegetable oils, mineral oils, lubricating oils, paraffin and other products. After decolorizing synthetic esters, activated clay will adsorb a large amount of impurities and more synthetic esters, and lose its activity to become oil-containing waste activated clay, of which about 20-50% of the synthetic esters are adsorbed. The amount of waste activated clay produced in my country's synthetic ester refining and aluminum processing industries can reach millions of tons each year. For a long time, the treatment method for waste activated clay has been incineration and burial, which not only pollutes the environment, but also greatly wastes resources such as oil.

[0003] In order to solve the problem of waste activated clay, people have proposed various methods, among which extraction of synthetic ester reduction activated clay is the most commonly used method. It mainly uses a mixed solution of ethyl acetate and isopropanol to extract the waste activated clay. After the extraction is completed, the waste activated clay is centrifuged again. After the treatment is completed, the waste activated clay is washed and dried to obtain activated clay and synthetic ester.

[0004] Although the above method can treat the waste clay, obtain the synthetic ester therein and restore the activity of the waste clay, its treatment efficiency is low and the treatment cost is high. For example, in the extraction process, in order to ensure stirrability, the mixed liquid and the waste clay are generally mixed in a ratio of at least 3:1. In this way, the amount of waste clay treated each time is very small, and the cost of using a larger extraction equipment increases significantly. At the same time, the time cost is high in the entire treatment process. Among them, the extraction time is generally between 15 minutes and 25 minutes, and the centrifugation needs to be determined according to the centrifugal volume. At the same time, the water washing process also requires 15 minutes to 25 minutes, and the number of water washings reaches 3 times. This leads to slow processing and large consumables. Summary of the invention

[0005] The present invention aims at the technical problems existing in the treatment of existing waste activated clay and proposes a treatment line which has reasonable design, simple method, convenient operation and can realize continuous treatment of waste activated clay and convenient extraction of synthetic esters therein.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the present invention provides a processing line for facilitating the extraction of synthetic esters from activated clay, comprising a raw material conveying auger, an extraction centrifugal device, a material receiving auger, an elevator and a water washing tank arranged along the moving direction of the waste clay, wherein the extraction centrifugal device comprises a single-row chain conveying mechanism, the single-row chain conveying mechanism comprises a plurality of hinged chain links and rolling bearings, a single-row chain conveying mechanism that circulates up and down is formed between the chain links and the rolling bearings, the single-row chain conveying mechanism is also provided with a holding component for holding the waste clay, the holding components are arranged at intervals on the single-row chain conveying mechanism, the holding components comprise an extension rod arranged on the chain link and a connecting rod hingedly arranged with the extension rod, A holding rod is mounted on one end of the connecting rod away from the extension rod, and the holding rod is rotatably mounted on the connecting rod. A guide wheel is mounted on the holding rod, and a holding barrel is mounted on the bottom of the holding rod, and the holding rod is rotatably mounted in the holding barrel. The side wall of the holding barrel has percolation holes, and the lower layer of the single-row chain conveying mechanism is functionally divided into a material holding part, an extraction part, a centrifugal part and a material pouring part, wherein the height of the extraction part is lower than that of the material holding part, the centrifugal part and the material pouring part, and an extraction tank matched with the extraction part and a centrifugal mechanism matched with the centrifugal part are arranged below the single-row chain conveying mechanism, and the material receiving auger is arranged below the material pouring part, and a guide seat for controlling the connecting rod to flip nearly 180 degrees is also arranged on the single-row chain conveying mechanism.

[0007] Preferably, the water washing tank comprises a first water washing tank and a second water washing tank, and the elevator is switched and connected with the first water washing tank and the second water washing tank.

[0008] Preferably, the containing components are symmetrically arranged on both sides of the single-row chain conveying mechanism.

[0009] Preferably, the centrifugal mechanism includes a frame and a centrifugal bucket arranged on the frame, the centrifugal bucket is provided with a notch for the containing bucket to pass through, the outer wall of the centrifugal bucket is provided with an openable and closable sealing door, the centrifugal bucket is provided with a lifting seat and a rotating motor arranged in the lifting seat, the power end of the rotating motor is connected to an electromagnet, an electromagnetic push rod is provided on the frame, the power end of the electromagnetic push rod extends into the centrifugal bucket and is connected to the lifting seat, and the containing bucket is made of nickel.

[0010] Compared with the prior art, the advantages and positive effects of the present invention are:

[0011] 1. The present invention provides a processing line for extracting synthetic esters from activated clay, which changes the traditional step-by-step processing of waste clay into an assembly line type processing, utilizes a single-row chain conveying mechanism to continuously receive the waste clay conveyed from a raw material conveying auger, utilizes an extraction tank to extract the waste clay in a moving holding barrel, utilizes a centrifugal mechanism to dry the waste clay, and at the same time, utilizes a guide seat to pour the waste clay out of the holding barrel, so that it is transported to a washing tank through a receiving auger and an elevator, and then completes the extraction of the entire synthetic ester and the regeneration of the activated clay through subsequent work such as drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 A schematic diagram of the structure of a processing line for extracting synthetic esters from activated clay provided in Example 1;

[0014] Figure 2 A schematic diagram of the structure of a single-row chain conveying mechanism provided in Example 1;

[0015] Figure 3 A schematic diagram of the structure between the chain link and the containing barrel provided in Example 1;

[0016] Figure 4 A schematic diagram of the structure of the centrifugal mechanism provided in Example 1;

[0017] Figure 5 A schematic diagram of the structure between the centrifugal bucket and the sealing door provided in Example 1;

[0018] In the above figures, 1. raw material conveying auger; 2. single-row chain conveying mechanism; 21. chain link; 22. rolling bearing; 23. extension rod; 24. connecting rod; 25. holding rod; 251. stirring blade; 26. guide wheel; 27. holding barrel; 271. percolation hole; 3. material receiving auger; 4. elevator; 5. first water washing tank; 6. second water washing tank; 7. extraction tank; 8. centrifugal mechanism; 81. frame; 82. centrifugal barrel; 821. notch; 822. sealing strip; 823. sealing door; 824. gear ring; 83. lifting seat; 84. rotating motor; 85. electromagnet; 86. electromagnetic push rod; 9. guide seat. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1, as Figure 1 , Figure 2 As shown, this embodiment aims to provide a processing line that can realize flow-line treatment of waste clay, realize convenient and continuous treatment of waste activated clay and extract synthetic ester therein, including a raw material conveying auger 1, an extraction centrifuge, a material receiving auger 3, an elevator 4 and a water washing tank arranged along the moving direction of the waste clay, wherein the raw material conveying auger 1 is used to provide waste clay to the extraction centrifuge, the extraction centrifuge realizes the extraction of synthetic ester from the waste clay and the centrifugation of the extracted waste clay, the material receiving auger 3 and the elevator 4 mainly realize the transfer of the waste clay from the extraction centrifuge to the water washing tank, and the water washing tank is used to wash the treated clay.

[0022] It can also be seen from the functions of the above-mentioned equipment that its main function of realizing streamlined processing lies in the extraction centrifugal device. In order to achieve the above-mentioned purpose, the extraction centrifugal device provided in this embodiment includes a single-row chain conveying mechanism 2, and the single-row chain conveying mechanism 2 includes a plurality of hinged links 21 and rolling bearings 22. The chain links 21 are the unit components of the existing common chains, which mainly include two outer links 21 and two inner links 21. The outer links 21 and the inner links 21 are connected in series with each other in the form of hinged kinematic pairs. The rolling bearings 22 are mounted on the hinged kinematic pairs. Since the chain needs to realize cyclic motion, the chain needs to form an annular structure. In this embodiment, a single-row chain conveying mechanism 2 that circulates up and down is formed between the chain links 21 and the rolling bearings 22.

[0023] The single-row chain conveying mechanism 2 is mainly configured to realize the circular conveying of waste clay. In order to hold the waste clay, in the present embodiment, a holding component for holding the waste clay is also provided on the single-row chain conveying mechanism 2. The holding components are arranged at intervals on the single-row chain conveying mechanism 2. In the present embodiment, a pair of holding components is arranged for every three chain links 21.

[0024] Considering that the holding component, in addition to completing the holding of the waste white clay, also needs to be allocated to the centrifugal mechanism 8 to complete centrifugation and unloading, for this reason, in the present embodiment, the holding component includes an extension rod 23 arranged on the chain link 21 and a connecting rod 24 hingedly arranged with the extension rod 23. The hinge of the connecting rod 24 and the extension rod 23 can achieve at least 180° flipping up and down. A holding rod 25 is mounted on the end of the connecting rod 24 away from the extension rod 23. The holding rod 25 is rotatably arranged on the connecting rod 24. In the present embodiment, a placement hole is provided at the end of the connecting rod 24, and a bearing is mounted in the placement hole. The end of the holding rod 25 is inserted into the bearing to achieve a rotational connection. A guide wheel 26 is mounted on the containing rod 25. The main purpose of the guide wheel 26 is to achieve the change of the angle between the connecting rod 24 and the extension rod 23 through the contact between the guide wheel 26 and other components. If a horizontal guide plate is placed, the guide wheel 26 can run on the horizontal guide plate to keep the connecting rod 24 and the extension rod 23 in a horizontal setting. If no guiding device is set, the connecting rod 24 and the extension rod 23 are set in a vertical state under the action of gravity.

[0025] A holding barrel 27 is mounted at the bottom of the holding rod 25, and the holding rod 25 is rotatably arranged in the holding barrel 27. Specifically, a bearing is arranged at the bottom of the holding barrel 27, and the holding rod 25 is mounted in the bearing, so that the holding barrel 27 can rotate relative to the holding rod 25. Considering that the holding barrel 27 needs to be centrifuged and extracted, for this purpose, percolation holes 271 are formed on the side wall of the holding barrel 27, and the percolation holes 271 are evenly distributed on the side wall of the holding barrel 27. In this embodiment, considering the stability of the operation of the entire single-row chain conveying mechanism 2, the holding barrel 27 is symmetrically arranged on the chain link 21.

[0026] Considering that the main task of the single-row chain conveying mechanism 2 is to complete the cyclic conveying of the holding barrel 27, and the single-row chain conveying mechanism 2 is set for upper and lower circulation, in this embodiment, the lower layer of the single-row chain conveying mechanism 2 is divided into a material holding part, an extraction part, a centrifugal part and a material pouring part according to the function, wherein the material holding part is arranged near the output port of the raw material conveying auger 1, so that the waste clay from the output port of the raw material conveying auger 1 will enter the material holding part. The extraction part is mainly used to realize extraction, so an extraction tank 7 matched with the extraction part is arranged below the single-row chain conveying mechanism 2, and the main purpose of the extraction tank 7 is to place the extraction liquid. Since the synthetic ester is separated from the extraction liquid after extraction, an overflow port is arranged on the extraction tank 7, so that the extracted synthetic ester will flow out from the overflow port, thereby completing the extraction of the synthetic ester. Of course, to ensure the extraction effect and overflow, it is necessary to add the extraction liquid according to the liquid level height in the extraction tank 7 to realize oil-liquid separation. It should be noted that, starting from the material holding part, the state of the holding barrel 27 needs to be kept in a vertical state. Of course, in the upper layer of the single-row chain conveying mechanism 2, the state of the holding barrel 27 can be vertical or horizontal, which can be determined according to the size of the holding barrel 27 and the operating conditions of the equipment. In the present embodiment, it is in a horizontal state to reduce the pulling force on the single-row chain conveying mechanism 2.

[0027] Considering that the waste clay needs to be immersed in the extraction tank 7 during the extraction process, the height of the extraction part is lower than the material holding part, the centrifugal part and the pouring part. In this way, by lowering the height, the holding barrel 27 can enter the extraction liquid.

[0028] In order to achieve extraction, the extraction efficiency can be improved by adding an ultrasonic vibration device to the extraction tank 7. Of course, the vibration time should not be too long to affect the oil stratification. Of course, it can also be as follows Figure 3 As shown, a stirring blade is mounted on the containing rod 25, and a fixing frame and a guide wheel electromagnet are provided on one side of the extraction tank 7. The guide wheel electromagnet is used to adsorb the guide wheel 26 to fix the containing rod 25. Then, a driving belt is provided on the fixing frame. The outer surface of the driving belt is rubbed against the surface of the containing barrel 27 to realize the rotation of the containing barrel 27. In this way, the waste clay in the containing barrel 27 is separated by the stirring blade, so as to be more fully in contact with the extract.

[0029] The main purpose of the centrifugal part is to cooperate with the centrifugal mechanism 8. The centrifugal part includes a material holding barrel, while the extraction part includes multiple parts. The number of extraction parts is mainly related to the centrifugal time. For example, the centrifugal time is 5 minutes per barrel (the material becomes less, the centrifugal time is reduced), and the extraction time is 25 minutes, then 5 holding barrels 27 immersed in the extraction tank 7 are required, so that the extraction time can be ensured.

[0030] Considering that centrifugation is rotation, in this embodiment, a centrifugal mechanism 8 is specially provided to cooperate with the centrifugal part. The centrifugal mechanism 8 includes a frame 81 and a centrifugal bucket 82 arranged on the frame 81. A notch 821 for the containing bucket 27 to pass through is arranged on the centrifugal bucket 82. At the same time, an openable and closable sealing door 823 is arranged on the outer wall of the centrifugal bucket 82. Figure 4 , Figure 5 As shown, sealing strips 822 are provided on both sides of the notch, and the sealing door 823 is provided in a cylindrical shape with a notch provided thereon, a gear ring 824 is provided at the bottom of the outer side thereof, and a circular track is provided on the inner side thereof, so that the notch of the centrifugal barrel 82 can be closed and opened under the action of the motor.

[0031] In order to realize centrifugation, in this embodiment, a lifting seat 83 and a rotating motor 84 arranged in the lifting seat 83 are arranged in the centrifugal barrel 82, and the power end of the rotating motor 84 is connected to the electromagnet 85. An electromagnetic push rod 86 is arranged on the frame 81, and the power end of the electromagnetic push rod 86 extends into the centrifugal barrel 82 and is connected to the lifting seat 83. The material of the containing barrel 27 is nickel. Since the containing barrel 27 is rotatable relative to the containing rod 25, the containing barrel 27 is fixed on the electromagnet, and rotates at a high speed under the action of the rotating motor to realize centrifugation without affecting the single-row chain conveying mechanism 2.

[0032] The main purpose of the pouring part is to pour out the clay in the storage bucket 27, and in order to collect the poured clay, the material receiving auger 3 is arranged below the pouring part, and the material receiving auger 3 is designed with a full opening at the top. Of course, it can also be a conveyor belt, and a guide seat for controlling the connection rod 24 to turn nearly 180 degrees is also arranged on the single-row chain conveying mechanism 2. The guide seat 9 is mainly in contact with the guide wheel 26, so that the height of the guide wheel 26 is continuously increased, so that the clay in the storage bucket 27 is poured out, which can be an inclined plate or two spaced circular tubes and inclined.

[0033] Considering that the washing time is long, the washing tank includes a first washing tank 5 and a second washing tank 6, and the elevator 4 is switched and connected with the first washing tank 5 and the second washing tank 6. In this way, it can be ensured that after the clay in one washing tank is stored, the other washing tank has just finished three washings, thereby achieving continuous production.

[0034] Through the above-mentioned arrangement, the waste clay is first transported to the material holding barrel of the material holding part through the raw material conveying auger 1. Under the operation of the single-row chain conveying mechanism 2, the material holding barrel with the waste clay enters the extraction tank 7. After the extraction is completed, it is moved to the centrifugal mechanism 8 to complete the centrifugation. After being guided and dumped by the guide seat, the treated clay enters the receiving auger 3, and then enters the water washing tank through the elevator 4, thereby realizing the streamlined treatment.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A processing line for extracting synthetic esters from activated clay, characterized in that: The invention comprises a raw material conveying auger, an extraction centrifugal device, a material receiving auger, an elevator and a washing tank which are arranged in this order along the moving direction of the waste clay, wherein the extraction centrifugal device comprises a single-row chain conveying mechanism, the single-row chain conveying mechanism comprises a plurality of hinged chain links and rolling bearings, a single-row chain conveying mechanism which circulates up and down is formed between the chain links and the rolling bearings, a holding component for holding the waste clay is also arranged on the single-row chain conveying mechanism, the holding components are arranged at intervals on the single-row chain conveying mechanism, the holding components comprise an extension rod arranged on the chain link and a connecting rod hinged to the extension rod, the end of the connecting rod away from the extension rod is provided with a holding rod, and the holding rod is arranged on the end of the connecting rod The release rod is rotatably arranged on the connecting rod, the containing rod is provided with a guide wheel, the bottom of the containing rod is provided with a containing barrel, the containing rod is rotatably arranged in the containing barrel, the side wall of the containing barrel is provided with a percolation hole, and the lower layer of the single-row chain conveying mechanism is functionally divided into a containing part, an extraction part, a centrifugal part and a pouring part, wherein the height of the extraction part is lower than that of the containing part, the centrifugal part and the pouring part, an extraction tank matched with the extraction part and a centrifugal mechanism matched with the centrifugal part are arranged below the single-row chain conveying mechanism, the material receiving auger is arranged below the pouring part, and a guide seat for controlling the connecting rod to flip nearly 180 degrees is also arranged on the single-row chain conveying mechanism.

2. The processing line for extracting synthetic esters from activated clay according to claim 1, characterized in that: The water washing tank comprises a first water washing tank and a second water washing tank, and the elevator is switched and connected with the first water washing tank and the second water washing tank.

3. The processing line for extracting synthetic esters from activated clay according to claim 2, characterized in that: The containing components are symmetrically arranged on both sides of the single-row chain conveying mechanism.

4. The processing line for extracting synthetic esters from activated clay according to claim 3, characterized in that: The centrifugal mechanism includes a frame and a centrifugal bucket arranged on the frame, the centrifugal bucket is provided with a notch for the containing bucket to pass through, the outer wall of the centrifugal bucket is provided with an openable and closable sealing door, a lifting seat and a rotating motor arranged in the lifting seat are arranged in the centrifugal bucket, the power end of the rotating motor is connected to an electromagnet, an electromagnetic push rod is arranged on the frame, the power end of the electromagnetic push rod extends into the centrifugal bucket and is connected to the lifting seat, and the containing bucket is made of nickel.

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