Mud rock kerogen extraction device

Abstract

The utility model discloses a mudstone kerogen extraction device which comprises a pretreatment mechanism installed on a rack, the pretreatment mechanism comprises a crushing bin fixed on the rack, rotatable rotary crushing teeth are arranged in the crushing bin, inclined surface crushing teeth matched with the rotary crushing teeth are further fixed on the inner wall of the crushing bin, and the inclined surface crushing teeth are matched with the inclined surface crushing teeth. The bottom end of the smashing bin communicates with a discharging pipe. The extraction mechanism is installed on the rack and comprises an extraction tank fixed to the rack, the tail end of the discharging pipe extends to the position above an opening in the top of the extraction tank, and a stirring rod which extends to the position below the extraction tank and can rotate is rotationally arranged on the inner wall of the extraction tank through a sealing bearing; and a plurality of stirring blades are fixed on the outer side of the stirring rod. The mud rock extraction device can be used for pretreating mud rock, uniformly crushing the mud rock, introducing the mud rock into the extraction tank to fully react with acid liquor, and fully and uniformly mixing the materials through the rotation of the stirring blades, so that the reaction efficiency is favorably improved.

Description

Technical Field

[0001] The utility model relates to the field of kerogen preparation, in particular to the field of kerogen extraction, and specifically to a mudstone kerogen extraction device. Background Art

[0002] Kerogen refers to dispersed organic matter in sedimentary rocks that is insoluble in alkali, non-oxidizing acids, and non-polar organic solvents. This concept has gradually been accepted by the petroleum geology and geochemistry communities. In contrast, the portion of rock that is soluble in organic solvents is called bitumen. Commonly used organic solvents such as chloroform, benzene, and methanol-benzene are all non-polar compounds and are extracted at temperatures below 80°C.

[0003] The existing method of extracting kerogen is usually to add mudstone and acid solution into a kerogen extraction device to mix, and stir the reaction materials to accelerate the reaction rate of the reaction materials. The insoluble matter obtained after the reaction is completed is mainly kerogen. When using a reactor to extract kerogen, since the material is not crushed thoroughly enough, the mixing is not sufficient during stirring in the reactor, and the extraction efficiency is also low. Summary of the Invention

[0004] In order to overcome the shortcomings of the above-mentioned existing technologies, the utility model provides a mudstone kerogen extraction device, which can pre-treat the mudstone, crush it evenly, and then pass it into an extraction tank to fully react with acid solution. The stirring blades then rotate to fully mix the materials, which helps to improve the reaction efficiency.

[0005] The utility model provides a mudstone kerogen extraction device, comprising:

[0006] A pre-processing mechanism is mounted on the frame, the pre-processing mechanism comprising a crushing chamber fixed to the frame, wherein rotatable rotating crushing teeth are provided in the crushing chamber, and inclined crushing teeth cooperating with the rotating crushing teeth are fixed to the inner wall of the crushing chamber, and the bottom end of the crushing chamber is connected to a discharge pipe;

[0007] An extraction mechanism is installed on the frame, and the extraction mechanism includes an extraction tank fixed on the frame. The tail end of the discharge pipe extends above the top opening of the extraction tank. The inner wall of the extraction tank is rotated by a sealed bearing and is provided with a stirring rod extending to the bottom of the extraction tank and is rotatable. A plurality of stirring blades are fixed to the outside of the stirring rod.

[0008] As a further technical solution, a pulverizing motor is fixed to the pulverizing bin, and the output shaft of the pulverizing motor is connected to the end of the rotating pulverizing teeth via a commutator. When the pulverizing motor is started, the output shaft of the pulverizing motor drives the rotating pulverizing teeth to rotate, and the pulverizing teeth cooperate with the inclined surface to pulverize the material.

[0009] As a further technical solution, a control valve is fixed to the discharge pipe, and a scraper assembly is provided at the bend near the end of the discharge pipe. The control valve controls the opening and closing of the discharge pipe outlet, and the scraper assembly clears the discharge pipe outlet.

[0010] As a further technical solution, the scraper assembly includes a pusher cylinder fixed to the bend of the discharge pipe. The output shaft of the pusher cylinder is fixed with several connecting rods, the outer ends of which are connected to a movable ring that moves up and down within the discharge pipe. As the pusher cylinder retracts and contracts, the connecting rods drive the movable ring up and down at the discharge pipe outlet, thereby clearing the discharge pipe and improving discharge efficiency.

[0011] As a further technical solution, a rotary motor is fixed to the frame, a drive shaft is rotatably mounted within the frame via a bearing, the output shaft of the rotary motor and the drive shaft are connected via a chain drive, and a second drive shaft is also rotatably mounted on the frame via a bearing, a driving bevel gear being fixed to the end of the drive shaft, and a driven bevel gear meshing with the driving bevel gear being fixed to the end of the stirring rod. When the rotary motor is activated, the stirring rod can rotate in conjunction with the drive shaft, chain drive, driving bevel gear, and driven bevel gear.

[0012] As a further technical solution, a collecting mechanism is provided on the side of the frame and below the extraction tank, which can facilitate the collection of materials and the removal of kerogen.

[0013] As a further technical solution, the collection mechanism includes a collection box positioned beside the frame and below the extraction tank. A T-shaped filter cartridge is suspended from the top edge of the collection box, and a water outlet pipe is connected to the side of the collection box. The post-reaction solution enters the collection box, where the kerogen is separated into the T-shaped filter cartridge. The post-reaction solution then passes through the filter holes of the T-shaped filter cartridge and is discharged through the water outlet pipe, completing the collection of the kerogen.

[0014] Compared with the existing technology, the beneficial effect of the present invention is that the present invention can pre-treat the mudstone, crush it evenly, and then pass it into the extraction tank to fully react with the acid solution, and then rotate the stirring blades to fully mix the materials, which helps to improve the reaction efficiency.

[0015] In addition, the pushing cylinder performs telescopic motion, and drives the movable ring to move up and down at the outlet of the discharge pipe through the connecting rod, so as to scrape off the powder adhering to the inner wall of the tail end of the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction will be given below to the drawings used in the embodiments or the description of the prior art. 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 paying any creative work.

[0017] Figure 1 A schematic structural diagram of a mudstone kerogen extraction device provided in an embodiment of the utility model.

[0018] Figure 2 A schematic structural diagram of a pretreatment mechanism of a mudstone kerogen extraction device provided in an embodiment of the utility model.

[0019] Figure 3 A schematic structural diagram of a scraping assembly of a mudstone kerogen extraction device provided in an embodiment of the utility model.

[0020] Figure 4 A schematic diagram of the extraction mechanism structure of a mudstone kerogen extraction device provided in an embodiment of the utility model.

[0021] Figure 5 A schematic diagram of the connection structure of a stirring rod and stirring blades of a mudstone kerogen extraction device provided in an embodiment of the utility model.

[0022] Figure 6 A schematic diagram of the collection mechanism structure of a mudstone kerogen extraction device provided in an embodiment of the utility model.

[0023] In the figure: 1. Frame; 2. Pretreatment mechanism; 201. Crushing bin; 202. Crushing motor; 203. Rotating crushing teeth; 204. Inclined crushing teeth; 205. Discharge pipe; 206. Control valve; 207. Pushing cylinder; 208. Connecting rod; 209. Movable ring; 3. Extraction mechanism; 301. Extraction tank; 302. Stirring rod; 303. Stirring blade; 304. Rotating motor; 305. Drive shaft; 306. Chain transmission; 307. Active bevel gear; 308. Driven bevel gear; 4. Collection mechanism; 401. Collection box; 402. T-type filter box; 403. Water outlet pipe. DETAILED DESCRIPTION

[0024] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions, for example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to the steps or units explicitly listed, but may include other steps or units that are not explicitly listed or are inherent to these processes, methods, products or apparatuses.

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, the technical features in the various embodiments or single embodiments provided by the present invention are arbitrarily combined with each other to form a new technical solution. This combination is not restricted by the order of steps and / or structural composition mode, but must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that this combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] See also Figure 1-6 An embodiment of the utility model provides a mudstone kerogen extraction device, which includes a pretreatment mechanism 2, an extraction mechanism 3 and a collection mechanism 4 installed on a frame 1. The material is crushed by the pretreatment mechanism 2 and passed into the extraction mechanism 3 to be stirred and mixed so that the raw materials can fully react. The collection mechanism 4 collects the reacted materials and separates the kerogen.

[0027] like Figure 1-3 As shown, the pre-processing mechanism 2 includes a crushing bin 201 fixed on the frame 1, and a crushing motor 202 is fixed on the crushing bin 201. The output shaft of the crushing motor 202 is connected to the rotating crushing teeth 203 through a commutator. Inclined crushing teeth 204 are fixed in the crushing bin 201 and are staggered with the rotating crushing teeth 203. The bottom end of the crushing bin 201 is connected to a discharge pipe 205. The top surface of the crushing bin 201 has an opening, and the material is put into the crushing bin 201 from the top opening. Since the inclined crushing teeth 204 are arranged obliquely in the crushing bin 201, the raw material can slide into the space formed by the inclined crushing teeth 204 and the inner wall of the crushing bin 201 under the guidance of the inclined crushing teeth 204. Then, the output shaft of the crushing motor 202 rotates, and the rotating crushing teeth 203 rotates under the reversing direction of the commutator. The rotating crushing teeth 203 rotate at a high speed and cooperate with the inclined crushing teeth 204, so as to fully crush the material, and the crushed material is discharged from the discharge pipe 205.

[0028] In addition, a control valve 206 is fixed on the discharge pipe 205, and the opening and closing of the discharge pipe 205 outlet is controlled by the control valve 206. A scraper assembly is also provided at the bend near the end of the discharge pipe 205, and the powder adhered to the inner wall of the tail end of the discharge pipe 205 is scraped off by the scraper assembly.

[0029] As a specific structure of a scraper component, such as Figure 3 As shown, a pushing cylinder 207 is fixed on the surface of the bend of the discharge pipe 205, and the output end of the pushing cylinder 207 extends to the vertical discharge part at the tail end of the discharge pipe 205, and a plurality of connecting rods 208 are fixed to the output shaft of the pushing cylinder 207, and the outer ends of the plurality of connecting rods 208 are commonly connected to a movable ring 209 that moves up and down in the vertical discharge part at the tail end of the discharge pipe 205. When the pushing cylinder 207 is extended and retracted, the connecting rod 208 drives the movable ring 209 to move up and down at the outlet of the discharge pipe 205, so that the powder adhered to the inner wall of the tail end of the discharge pipe 205 can be scraped off to reduce waste.

[0030] like Figure 1 、 Figure 4-5 As shown, the extraction mechanism 3 includes an extraction tank 301 fixed to the frame 1. The inner wall of the extraction tank 301 is provided with a stirring rod 302 extending to the bottom of the extraction tank 301 through a sealed bearing. A plurality of stirring blades 303 are fixed to the outside of the stirring rod 302. The material is put into the extraction tank 301 through the discharge pipe 205, and the stirring rod 302 rotates, so that the stirring blades 303 fully stir the material to make it react fully.

[0031] The top and bottom of the extraction tank 301 both protrude outward to form openings, and the tail end of the discharge pipe 205 extends above the top opening of the extraction tank 301, and material can be loaded through the top opening of the extraction tank 301, and the collecting mechanism 4 is located below the bottom opening of the extraction tank 301, and material can be discharged through the bottom opening of the extraction tank 301. Valves can also be set at the top opening and bottom opening of the extraction tank 301 to control the opening and closing of the top opening and bottom opening of the extraction tank 301.

[0032] As for how the stirring rod 302 rotates, Figure 4 As shown, a rotating motor 304 is fixed on the frame 1, and a transmission shaft 305 is provided in the frame 1 for rotation through a bearing. The output shaft of the rotating motor 304 is connected to the transmission shaft 305 through a chain transmission member 306. When the output shaft of the rotating motor 304 rotates, the transmission shaft 305 rotates under the meshing transmission action of the chain transmission member 306. The end of the transmission shaft 305 is fixed with a driving bevel gear 307, and the end of the stirring rod 302 is fixed with a driven bevel gear 308 meshing with the driving bevel gear 307. Therefore, when the transmission shaft 305 rotates, the stirring rod 302 can be driven to rotate under the meshing transmission of the driving bevel gear 307 and the driven bevel gear 308.

[0033] When the materials in the extraction tank 301 are fully reacted and uniform, the materials can be collected by the collecting mechanism 4, so that the kerogen can be taken out. Figure 1 、 6As shown, the collecting mechanism 4 includes a collecting box 401 placed beside the frame 1 and below the extraction tank 301. A T-shaped filter box 402 is placed on the top edge of the collecting box 401. The outer edge of the top edge of the T-shaped filter box 402 is placed on the top edge of the collecting box 401, so that the kerogen can be collected through the T-shaped filter box 402. The side of the collecting box 401 is also connected to a water outlet pipe 403. The material is passed into the collecting box 401, and the kerogen is separated into the T-shaped filter box 402. The post-reaction solution passes through the filter holes of the T-shaped filter box 402 and is discharged from the water outlet pipe 403.

[0034] In summary, in use, mudstone is first put into the crushing bin 201 from the opening on the top surface of the crushing bin 201, and the output shaft of the crushing motor 202 drives the rotating crushing teeth 203 to rotate, and cooperates with the inclined crushing teeth 204 to fully crush the material. The crushed mudstone is discharged from the discharge pipe 205 and put into the extraction tank 301, and then acid is added to the extraction tank 301 to mix with the crushed mudstone, and the rotating stirring rod 302 drives the stirring blade 303 to rotate in the extraction tank 301, so that the mudstone in the extraction tank 301 is fully reacted with the acid solution, until the insoluble matter is obtained after the reaction is completed, which is kerogen, and the post-reaction solution is passed into the collection box 401, and the kerogen can be separated into the T-type filter box 402. The post-reaction solution passes through the filter holes of the T-type filter box 402 and is discharged from the outlet pipe 403, thereby completing the collection of kerogen.

[0035] In addition, the pushing cylinder 207 performs telescopic motion, and drives the movable ring 209 to move up and down at the outlet of the discharge pipe 205 through the connecting rod 208, so that the powder adhered to the inner wall of the tail end of the discharge pipe 205 can be scraped off.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.

Claims

1. A mudstone kerogen extraction device, characterized in that: include: A pre-processing mechanism (2) is mounted on the frame (1), the pre-processing mechanism (2) comprising a crushing bin (201) fixed to the frame (1), wherein rotatable rotating crushing teeth (203) are provided in the crushing bin (201), and inclined crushing teeth (204) cooperating with the rotating crushing teeth (203) are further fixed to the inner wall of the crushing bin (201), and the bottom end of the crushing bin (201) is connected to a discharge pipe (205); An extraction mechanism (3) is mounted on a frame (1), the extraction mechanism (3) comprising an extraction tank (301) fixed to the frame (1), the tail end of the discharge pipe (205) extending to above the top opening of the extraction tank (301), the inner wall of the extraction tank (301) being provided with a rotatable stirring rod (302) extending to the bottom of the extraction tank (301) via a sealed bearing, and a plurality of stirring blades (303) being fixed to the outer side of the stirring rod (302).

2. The mudstone kerogen extraction device according to claim 1, characterized in that: A pulverizing motor (202) is fixed to the pulverizing bin (201), and an output shaft of the pulverizing motor (202) is connected to the end of the rotating pulverizing teeth (203) via a commutator.

3. The mudstone kerogen extraction device according to claim 1, characterized in that: A control valve (206) is also fixed on the discharge pipe (205), and a scraper assembly is also provided at the bend near the end of the discharge pipe (205).

4. The mudstone kerogen extraction device according to claim 3, characterized in that: The scraper assembly comprises a push cylinder (207) fixed at a bend of the discharge pipe (205), a plurality of connecting rods (208) being fixed to an output shaft of the push cylinder (207), and the outer ends of the plurality of connecting rods (208) being commonly connected to a movable ring (209) that moves up and down in the discharge pipe (205).

5. The mudstone kerogen extraction device according to claim 1, characterized in that: A rotating motor (304) is fixed on the frame (1), a transmission shaft (305) is rotatably provided in the frame (1) via a bearing, an output shaft of the rotating motor (304) and the transmission shaft (305) are connected via a chain transmission member (306), a driving bevel gear (307) is fixed at the end of the transmission shaft (305), and a driven bevel gear (308) meshing with the driving bevel gear (307) is fixed at the end of the stirring rod (302).

6. The mudstone kerogen extraction device according to claim 1, characterized in that: A collecting mechanism (4) located below the extraction tank (301) is also provided on the side of the frame (1).

7. The mudstone kerogen extraction device according to claim 6, characterized in that: The collecting mechanism (4) comprises a collecting box (401) placed beside the frame (1) and below the extraction tank (301), a T-shaped filter box (402) being placed on the top edge of the collecting box (401), and a water outlet pipe (403) being connected to the side of the collecting box (401).

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