A catalytic diesel extraction device

Abstract

The utility model belongs to the field of petroleum technology, and particularly relates to a catalytic diesel extraction device, including a fixed seat and a support rod, wherein the support rod is fixedly mounted on the upper surface of the fixed seat, a connecting plate is fixedly mounted on the upper surface of the support rod, a control mechanism is arranged on the bottom surface of the connecting plate, and the control mechanism includes an oil outlet, a discharge pipe, a connecting flange, a valve body, a valve stem, a valve plate and a butt pipe, and the oil outlet runs through the middle position of the upper surface of the connecting plate. The catalytic diesel extraction device controls the catalytic diesel after extraction by setting a control mechanism to drive the valve plate to rotate by controlling the rotation of the valve stem to control the opening and closing of the internal channel of the valve body, and facilitates the discharge control flow rate. By setting a mixing unit, the catalytic diesel and the catalyst can be fully stirred and mixed after entering the extraction tank to improve the extraction effect, and the catalytic diesel and the catalyst are quantitatively distributed during feeding to achieve the best mixing ratio for extraction.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum, in particular to catalytic diesel extraction equipment. Background Art

[0002] With the development of society, the requirements for the aromatic content in diesel are becoming more and more stringent. In China's diesel composition, catalytic cracking diesel is an important source of diesel, but the aromatic content of catalytic cracking diesel is high, the cetane number is low, and the quality is poor. Therefore, there are special hydrotreating or hydromodification devices, but the cost of hydrotreating and hydromodification devices is high and the conditions are harsh. Therefore, for small and medium-sized enterprises, a more economical method is to separate the polycyclic aromatic hydrocarbon components in catalytic cracking diesel from the monocyclic aromatic hydrocarbons and alkyl components, and deliver them to enterprises with hydrotreating and hydromodification for centralized processing.

[0003] At present, it is difficult to achieve quantitative addition of catalytic diesel and extractant in catalytic diesel extraction devices, and it is difficult to achieve rapid mixing of catalytic diesel and extractant.

[0004] For example, a catalytic diesel extraction device disclosed in Chinese patent CN211814277U, in which an extractant metering pump is connected to the back of the extractant tank, and a catalytic diesel metering pump is connected to the back of the catalytic diesel tank; the top of the extraction tower is first connected to a cold logistics inlet of the raffinate preheater, and the bottom discharge pipeline of the raffinate separation tower is divided into two paths, one of which returns to the bottom of the extraction liquid separation tower after passing through the reboiler, and the other is connected to the hot logistics inlet of the extraction liquid preheater; the bottom of the extraction tower is first connected to a cold logistics inlet of the extraction liquid preheater, and the bottom discharge pipeline of the extraction liquid separation tower is divided into two paths, one of which returns to the bottom of the extraction liquid separation tower after passing through the reboiler, and the other is connected to the hot logistics inlet of the extraction liquid preheater.

[0005] However, the catalytic diesel extraction device lacks an oil discharge control and material discharge mechanism after the extraction is completed, which makes it inconvenient to use.

[0006] Therefore, we proposed a catalytic diesel extraction equipment to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a catalytic diesel extraction device to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a catalytic diesel extraction device, comprising a fixing seat and a support rod, the support rod is fixedly mounted on the upper surface of the fixing seat, a connecting plate is fixedly mounted on the upper surface of the support rod, and a control mechanism is arranged on the bottom surface of the connecting plate;

[0009] The control mechanism includes an oil outlet hole, a discharge pipe, a connecting flange, a valve body, a valve stem, a valve plate and a butt joint pipe. The oil outlet hole passes through the middle position of the upper surface of the connecting plate, the discharge pipe is fixedly installed on the inner wall of the oil outlet hole, the connecting flange is fixedly installed on the outer surface of the discharge pipe, the valve body is fixedly connected to one end surface of the connecting flange, the valve stem is installed on the inner wall of the valve body, the valve plate is fixedly installed on the outer surface of the valve stem, and the butt joint pipe is sealed and clamped on one end surface of the valve body.

[0010] Preferably, an extraction mechanism is provided on the upper surface of the connecting plate, and the extraction mechanism includes a heating unit and a mixing unit. The heating unit includes a heating tank, a pump, a water supply pipe, a delivery pipe, a fixing ring and a heating rod. The heating tank is fixedly installed on the upper surface of the connecting plate, the pump is fixedly installed on one side of the upper surface of the fixing seat, the water supply pipe is fixedly connected to the side of the pump, the delivery pipe is fixedly installed on the upper surface of the pump, the fixing ring is sealingly clamped on the upper surface of the heating tank, the heating rod is fixedly installed on the inner wall of the heating tank, and one end surface of the delivery pipe is fixedly connected to the upper surface of the fixing ring.

[0011] Preferably, the mixing unit includes an extraction tank, a cover plate, a driving motor, a transmission shaft, a stirring blade and a circular hole. The extraction tank is fixedly mounted on the inner bottom surface of the heating tank, the cover plate is clamped on the upper surface of the extraction tank, the driving motor is fixedly mounted on the upper surface of the cover plate, the transmission shaft is mounted on the output end of the driving motor, the stirring blade is fixedly mounted on the outer surface of the transmission shaft, and the circular hole runs through the surface of the stirring blade.

[0012] Preferably, a feeding tank is fixedly installed on one side of the upper surface of the fixed seat, a connecting pipe is fixedly connected to the upper surface of one end of the feeding tank, one end of the connecting pipe is fixedly connected to a built-in pump quantitative column, a feeding pipe is fixedly installed on the upper surface of the built-in pump quantitative column, and one end of the feeding pipe is fixedly connected to the upper surface of the cover plate.

[0013] Preferably, the inner bottom surfaces of the heating tank and the extraction tank are penetrated with oil outlet holes, and the fixing ring and the cover plate have the same height.

[0014] Preferably, a hole is passed through the middle of the upper surface of the cover plate, the upper end of the transmission shaft passes through the hole and is connected to the output end of the driving motor, and the stirring blades are distributed on the outer surface of the transmission shaft in sequence with equal intervals.

[0015] Preferably, one side of the upper surface of the cover plate is penetrated by a hole, the upper end of the feeding pipe is fixedly connected to the inner wall of the hole penetrated by one side of the upper surface of the cover plate, and the built-in pump quantitative column barrels are symmetrically distributed on both sides of the upper surface of the connecting plate, and the two built-in pump quantitative column barrels on both sides of the upper surface of the connecting plate respectively place catalytic diesel and catalyst in a quantitative manner.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The catalytic diesel extraction equipment is provided with a control mechanism to control the valve stem to drive the valve plate to rotate and control the opening and closing of the internal channel of the valve body to control the extraction of the catalytic diesel to facilitate the discharge control flow.

[0018] 2. The catalytic diesel extraction equipment can improve the extraction effect by setting a mixing unit so that the catalytic diesel and the catalyst enter the extraction tank and are fully stirred and mixed. When loading, the catalytic diesel and the catalyst are distributed and quantitatively loaded to achieve the best mixing ratio for extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the control mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the extraction mechanism structure of the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] In the figure: 1. fixing seat; 2. supporting rod; 201. connecting plate; 3. heating tank; 301. pump; 302. water supply pipe; 303. conveying pipe; 304. fixing ring; 306. heating rod; 307. extraction tank; 308. cover plate; 309. driving motor; 310. transmission shaft; 311. stirring blade; 312. round hole; 313. feeding tank; 314. connecting pipe; 315. quantitative column of built-in pump; 316. feeding pipe; 317. oil outlet hole; 318. discharge pipe; 319. connecting flange; 320. valve body; 321. valve stem; 322. valve lever; 323. butt joint pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1: A catalytic diesel extraction device comprises a fixing base 1 and a support rod 2, wherein the support rod 2 is fixedly mounted on the upper surface of the fixing base 1, a connecting plate 201 is fixedly mounted on the upper surface of the support rod 2, and a control mechanism is arranged on the bottom surface of the connecting plate 201;

[0027] The control mechanism includes an oil outlet hole 317, a discharge pipe 318, a connecting flange 319, a valve body 320, a valve stem 321, a valve plate 322 and a butt joint pipe 323. The oil outlet hole 317 runs through the middle position of the upper surface of the connecting plate 201. The discharge pipe 318 is fixedly installed on the inner wall of the oil outlet hole 317. The connecting flange 319 is fixedly installed on the outer surface of the discharge pipe 318. The valve body 320 is fixedly connected to one end surface of the connecting flange 319. The valve stem 321 is installed on the inner wall of the valve body 320. The valve plate 322 is fixedly installed on the outer surface of the valve stem 321. The butt joint pipe 323 is sealed and clamped on one end surface of the valve body 320. The control mechanism is set to control the rotation of the valve stem 321 to drive the valve plate 322 to rotate and control the opening and closing of the internal channel of the valve body 320 to control the extraction of the catalytic diesel, so as to facilitate the discharge control flow.

[0028] A feeding tank 313 is fixedly installed on one side of the upper surface of the fixed base 1, a connecting pipe 314 is fixedly connected to the upper surface of one end of the feeding tank 313, one end of the connecting pipe 314 is fixedly connected to a built-in pump quantitative column 315, a feeding pipe 316 is fixedly installed on the upper surface of the built-in pump quantitative column 315, and one end of the feeding pipe 316 is fixedly connected to the upper surface of the cover plate 308.

[0029] The feeding tank 313 distributes the catalytic diesel and the catalyst to the built-in pump quantitative column 315 through the connecting pipe 314, and then quantitatively inputs them into the extraction tank 307 through the feeding pipe 316. The catalytic diesel extracted in the extraction tank 307 enters the oil outlet hole 317 and then enters the discharge pipe 318. The valve stem 321 is rotated to drive the valve lever 322 to rotate and open the internal channel in the valve body 320, so that the catalytic diesel in the discharge pipe 318 passes through the valve body 320 and enters the storage container connected to the docking pipe 323 for storage.

[0030] Embodiment 2: Based on embodiment 1, an extraction mechanism is arranged on the upper surface of the connecting plate 201, and the extraction mechanism includes a heating unit and a mixing unit. The heating unit includes a heating tank 3, a pump 301, a water supply pipe 302, a delivery pipe 303, a fixing ring 304 and a heating rod 306. The heating tank 3 is fixedly installed on the upper surface of the connecting plate 201, the pump 301 is fixedly installed on one side of the upper surface of the fixing seat 1, the water supply pipe 302 is fixedly connected to the side of the pump 301, the delivery pipe 303 is fixedly installed on the upper surface of the pump 301, the fixing ring 304 is sealingly clamped on the upper surface of the heating tank 3, the heating rod 306 is fixedly installed on the inner wall of the heating tank 3, one end surface of the delivery pipe 303 is fixedly connected to the upper surface of the fixing ring 304, the inner bottom surfaces of the heating tank 3 and the extraction tank 307 are penetrated with an oil outlet hole 317, and the heights of the fixing ring 304 and the cover plate 308 are the same.

[0031] The mixing unit includes an extraction tank 307, a cover plate 308, a drive motor 309, a transmission shaft 310, a stirring blade 311 and a circular hole 312. The extraction tank 307 is fixedly installed on the inner bottom surface of the heating tank 3, the cover plate 308 is clamped on the upper surface of the extraction tank 307, the drive motor 309 is fixedly installed on the upper surface of the cover plate 308, the transmission shaft 310 is installed on the output end of the drive motor 309, the stirring blade 311 is fixedly installed on the outer surface of the transmission shaft 310, the circular hole 312 runs through the surface of the stirring blade 311, a hole is passed through the middle position of the upper surface of the cover plate 308, the upper end of the transmission shaft 310 passes through the hole and is connected to the output end of the drive motor 309, the stirring blade 311, etc. The outer surface of the transmission shaft 310 is distributed in sequence at intervals, one side of the upper surface of the cover plate 308 is penetrated with a hole, the upper end of the feeding pipe 316 is fixedly connected to the inner wall of the hole penetrated on one side of the upper surface of the cover plate 308, and the built-in pump quantitative column 315 is symmetrically distributed on both sides of the upper surface of the connecting plate 201. The two built-in pump quantitative column 315 on both sides of the upper surface of the connecting plate 201 respectively quantitatively place catalytic diesel and catalyst, and by setting a mixing unit, the catalytic diesel and catalyst can be fully stirred and mixed after entering the extraction tank 307 to improve the extraction effect, and the catalytic diesel and catalyst are distributed and quantitatively fed during feeding to achieve the best mixing ratio for extraction.

[0032] The power supply of the driving motor 309 is started so that the driving motor 309 drives the transmission shaft 310 to rotate, thereby driving the stirring blade 311 to rotate to fully stir and mix the catalytic diesel and the catalyst inside the extraction tank 307. After that, the pump 301 draws water through the water supply pipe 302 and inputs it into the heating tank 3 through the delivery pipe 303. After that, an external power supply is connected to supply power to the heating rod 306 to heat the water inside the heating tank 3 to extract the catalytic diesel.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A catalytic diesel extraction device, comprising a fixing base (1) and a support rod (2), wherein the support rod (2) is fixedly mounted on the upper surface of the fixing base (1), and a connecting plate (201) is fixedly mounted on the upper surface of the support rod (2), characterized in that: The bottom surface of the connecting plate (201) is provided with a control mechanism; The control mechanism comprises an oil outlet hole (317), a material outlet pipe (318), a connecting flange (319), a valve body (320), a valve stem (321), a valve lever (322) and a butt joint pipe (323); the oil outlet hole (317) penetrates the middle position of the upper surface of the connecting plate (201); the material outlet pipe (318) is fixedly mounted on the inner wall of the oil outlet hole (317); the connecting flange (319) is fixedly mounted on the outer surface of the material outlet pipe (318); the valve body (320) is fixedly connected to one end surface of the connecting flange (319); the valve stem (321) is mounted on the inner wall of the valve body (320); the valve lever (322) is fixedly mounted on the outer surface of the valve stem (321); and the butt joint pipe (323) is sealingly clamped on one end surface of the valve body (320); An extraction mechanism is arranged on the upper surface of the connecting plate (201), the extraction mechanism comprising a heating unit and a mixing unit, the heating unit comprising a heating tank (3), a pump (301), a water supply pipe (302), a delivery pipe (303), a fixing ring (304) and a heating rod (306), the heating tank (3) being fixedly mounted on the upper surface of the connecting plate (201), the pump (301) being fixedly mounted on one side of the upper surface of the fixing seat (1), the water supply pipe (302) being fixedly connected to the side of the pump (301), the delivery pipe (303) being fixedly mounted on the upper surface of the pump (301), the fixing ring (304) being sealingly clamped on the upper surface of the heating tank (3), the heating rod (306) being fixedly mounted on the inner wall of the heating tank (3), and one end surface of the delivery pipe (303) being fixedly connected to the upper surface of the fixing ring (304); A feeding tank (313) is fixedly mounted on one side of the upper surface of the fixing seat (1); a connecting pipe (314) is fixedly connected to the upper portion of one end surface of the feeding tank (313); one end of the connecting pipe (314) is fixedly connected to a built-in pump quantitative column (315); a feeding pipe (316) is fixedly mounted on the upper surface of the built-in pump quantitative column (315); one end of the feeding pipe (316) is fixedly connected to the upper surface of the cover plate (308).

2. A catalytic diesel extraction device according to claim 1, characterized in that: The mixing unit comprises an extraction tank (307), a cover plate (308), a driving motor (309), a transmission shaft (310), a stirring blade (311) and a circular hole (312); the extraction tank (307) is fixedly mounted on the inner bottom surface of the heating tank (3); the cover plate (308) is snap-connected to the upper surface of the extraction tank (307); the driving motor (309) is fixedly mounted on the upper surface of the cover plate (308); the transmission shaft (310) is mounted on the output end of the driving motor (309); the stirring blade (311) is fixedly mounted on the outer surface of the transmission shaft (310); and the circular hole (312) runs through the surface of the stirring blade (311).

3. A catalytic diesel extraction device according to claim 2, characterized in that: The inner bottom surfaces of the heating tank (3) and the extraction tank (307) are penetrated with an oil outlet hole (317), and the fixing ring (304) and the cover plate (308) are at the same height.

4. A catalytic diesel extraction device according to claim 2, characterized in that: A hole is formed in the middle of the upper surface of the cover plate (308), and the upper end of the transmission shaft (310) passes through the hole to be connected to the output end of the drive motor (309). The stirring blades (311) are distributed on the outer surface of the transmission shaft (310) at equal intervals.

5. A catalytic diesel extraction device according to claim 1, characterized in that: A hole is penetrated on one side of the upper surface of the cover plate (308); the upper end of the feeding pipe (316) is fixedly connected to the inner wall of the hole penetrated on one side of the upper surface of the cover plate (308); the built-in pump quantitative cylinders (315) are symmetrically distributed on both sides of the upper surface of the connecting plate (201); and the two built-in pump quantitative cylinders (315) on both sides of the upper surface of the connecting plate (201) respectively quantitatively place catalytic diesel and catalyst.

Images