Evaporative crystallization device for coal-to-liquid

Abstract

The utility model relates to the technical field of coal-to-oil production, and discloses an evaporative crystallization device for coal-to-oil, which comprises a crystallization component and a recovery component mounted on the crystallization component, the crystallization component comprises a crystallization tank, a heating pipe is fixedly connected to the outer surface of the crystallization tank, and a protective sleeve is fixedly connected to the outer surface of the crystallization tank. The heating pipe is arranged inside the protective sleeve, the outer surface of the protective sleeve is fixedly connected with a control assembly, the control assembly is electrically connected with the heating pipe, the upper surface of the crystallizing tank is fixedly connected with a motor, the output end of the motor is fixedly connected with a stirring shaft, the outer surface of the stirring shaft is fixedly connected with stirring blades, and the outer surface of the stirring shaft is fixedly connected with a scraper. By arranging the crystallization assembly and driving the stirring shaft through the motor, the stirring blades and the scraping plates work at the same time, the crystallization efficiency is improved, the inner wall of the crystallization tank can be cleaned, and meanwhile discharging is convenient while large crystallization blocks are smashed through the spiral shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of coal-to-oil production, in particular to an evaporation crystallization device for coal-to-oil. Background Art

[0002] Coal-to-liquids is a technology that uses coal as raw material to produce oil and petrochemical products through chemical processing, including two technical routes: direct coal liquefaction and indirect coal liquefaction. Direct coal liquefaction directly liquefies coal under high temperature and high pressure conditions through catalytic hydrogenation to synthesize liquid hydrocarbon fuels, and removes sulfur, nitrogen, oxygen and other atoms.

[0003] Chinese patent document CN216909226U discloses an evaporation crystallization device for sodium molybdate production, including an evaporation chamber, a separation chamber, a discharge pipe and a crystallization box. A plurality of guide modules arranged in parallel are fixedly arranged in the cavity of the evaporation chamber. The guide modules include a guide plate fixedly arranged in the evaporation chamber and a heating rod installed in the guide plate. The cross-section of the guide plate is arched. The number of guide plates in the plurality of guide modules increases step by step from top to bottom, and the arrangement of the plurality of guide plates is an isosceles triangle. By setting a plurality of guide modules, when the molybdenum When the sodium molybdate solution is added into the evaporation chamber through the feed hopper, the solution is divided into multiple streams by the diversion of multiple guide plates, which not only increases the residence time of the sodium molybdate solution in the evaporation chamber, but also, the setting of the arch-shaped guide plate enables the sodium molybdate solution to fully contact the guide plate, greatly improving the evaporation efficiency and evaporation effect of the sodium molybdate. However, the evaporation and crystallization device is not designed with a corresponding unloading device. After the material in the evaporation chamber evaporates and crystallizes, it will adhere to the inner wall of the evaporation chamber, which is not only difficult to clean but also affects the effect of the next batch of evaporation and crystallization. Utility Model Content

[0004] The utility model aims to solve the problem that the existing evaporation crystallization device is not designed with a corresponding material discharge device. When the material in the evaporation chamber evaporates and crystallizes, it will adhere to the inner wall of the evaporation chamber, which is not only difficult to clean but also affects the effect of the next batch of evaporation and crystallization. An evaporation crystallization device for coal-to-oil is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an evaporation crystallization device for coal-to-oil, comprising a crystallization component, and a recovery component installed on the crystallization component, the crystallization component comprising a crystallization tank, a heating pipe fixedly connected to the outer surface of the crystallization tank, a protective cover fixedly connected to the outer surface of the crystallization tank, the heating pipe is arranged inside the protective cover, a control assembly fixedly connected to the outer surface of the protective cover, the control assembly is electrically connected to the heating pipe, a motor is fixedly connected to the upper surface of the crystallization tank, a stirring shaft is fixedly connected to the output end of the motor, one end of the stirring shaft passes through the crystallization tank and extends into the interior thereof, a stirring blade is fixedly connected to the outer surface of the stirring shaft, a scraper is fixedly connected to the outer surface of the stirring shaft, and a discharge port is arranged on the lower bottom surface of the crystallization tank.

[0006] Preferably, the recovery component comprises a feeding tank, the upper surface of the feeding tank is provided with a feeding port, the upper surface of the upper surface of the feeding tank is connected to a recovery pipe, one end of the recovery pipe is fixedly connected to the crystallization tank, the lower bottom of the feeding tank is connected to a feeding pipe, a pump is installed on the feeding pipe, one end of the feeding pipe is connected to the crystallization tank, the lower bottom surface of the feeding tank is fixedly connected to a support foot, the lower end of the support foot is fixedly connected to a mounting plate, and the mounting plate is fixedly installed on the outer surface of the crystallization tank;

[0007] It is used to collect the steam generated during crystallization and evaporation and discharge it into the feeding tank, use the hot steam to heat the coal-to-oil to reduce its viscosity, and perform secondary crystallization on the raw materials in the steam.

[0008] Preferably, the bottom surface of the crystallization tank is fixedly connected with supporting legs, and the supporting legs are provided in four groups;

[0009] Used to support the entire crystallization device.

[0010] Preferably, the protective cover is filled with thermal insulation cotton, which is a component made of glass fiber;

[0011] It is used to insulate the heat generated by the heating tube to prevent it from being greatly affected by the outside world.

[0012] Preferably, a spiral shaft is fixedly connected to the lower end of the stirring shaft;

[0013] It is used to crush larger crystal blocks to facilitate their discharge from the discharge port.

[0014] Preferably, the stirring blade is provided with a through hole;

[0015] Used to increase the stirring efficiency of the stirring blade and increase the crystallization efficiency.

[0016] Preferably, a valve is installed on the discharge port;

[0017] Used to open or close the discharge port at any time.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The utility model proposes an evaporation crystallization device for coal-to-oil. By setting a crystallization component, the stirring shaft is driven by a motor, and the stirring blades and the scraper work at the same time, which not only speeds up the crystallization efficiency but also cleans the inner wall of the crystallization tank. At the same time, the spiral shaft crushes larger crystal blocks and facilitates material discharge.

[0020] 2. The utility model proposes an evaporation crystallization device for coal-to-oil, which, by setting a recovery component, allows the high-temperature steam generated during crystallization to be introduced into the feeding tank to preheat the coal-to-oil that needs to be crystallized, while allowing part of the raw materials in the steam to be mixed into the coal-to-oil for secondary crystallization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an evaporation and crystallization device for coal-to-oil proposed in the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of a crystallization component of an evaporation crystallization device for coal-to-oil proposed in the utility model;

[0023] Figure 3 This is a schematic cross-sectional view of a crystallization assembly of an evaporation crystallization device for coal-to-oil proposed in the utility model;

[0024] Figure 4 This is a schematic diagram of the overall structure of a recovery component of an evaporation crystallization device for coal-to-oil proposed in the utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of a stirring structure for an evaporation crystallization device for coal-to-oil proposed in the utility model;

[0026] Legend:

[0027] 1. Crystallization component; 11. Crystallization tank; 111. Support leg; 12. Heating tube; 13. Protective cover; 131. Insulation cotton; 14. Control assembly; 15. Motor; 16. Stirring shaft; 161. Screw shaft; 17. Stirring blade; 171. Through hole; 18. Scraper; 19. Discharge port; 191. Valve; 2. Recovery component; 21. Feeding tank; 22. Feeding port; 23. Recovery pipe; 24. Feeding pipe; 25. Pump; 26. Support leg; 27. Mounting plate. DETAILED DESCRIPTION

[0028] 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.

[0029] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Reference Figure 1-5 The utility model provides an embodiment: an evaporation crystallization device for coal-to-oil, comprising a crystallization component 1, and a recovery component 2 installed on the crystallization component 1, the crystallization component 1 comprises a crystallization tank 11, the outer surface of the crystallization tank 11 is fixedly connected with a heating pipe 12, the crystallization tank 11 is heated to increase the crystallization efficiency, the outer surface of the crystallization tank 11 is fixedly connected with a protective cover 13 to prevent the heating pipe 12 from being exposed to the outside and scalding the staff, the heating pipe 12 is arranged inside the protective cover 13, the outer surface of the protective cover 13 is fixedly connected with a control assembly 14, the control heating The heat pipe 12 is opened and closed, and the control assembly 14 is electrically connected to the heating pipe 12. A motor 15 is fixedly connected to the upper surface of the crystallizer 11 to drive the stirring shaft 16. The output end of the motor 15 is fixedly connected to the stirring shaft 16. One end of the stirring shaft 16 passes through the crystallizer 11 and extends into the interior thereof. A stirring blade 17 is fixedly connected to the outer surface of the stirring shaft 16 to stir the coal-to-oil in the crystallizer 11 to accelerate its crystallization efficiency. A scraper 18 is fixedly connected to the outer surface of the stirring shaft 16 to clean the inner wall of the crystallizer 11. A discharge port 19 is provided on the lower bottom surface of the crystallizer 11.

[0031] The recovery component 2 includes a loading tank 21 for storing the coal-to-oil raw materials to be processed. A feed port 22 is provided on the upper surface of the loading tank 21. A recovery pipe 23 is connected to the upper surface of the loading tank 21. The steam generated during crystallization is connected to the loading tank 21 to heat the coal-to-oil. One end of the recovery pipe 23 is fixedly connected to the crystallization tank 11. A loading pipe 24 is connected to the lower bottom of the loading tank 21 to heat the coal-to-oil raw materials into the crystallization tank 11. A pump 25 is installed on the loading pipe 24. One end of the loading pipe 24 is connected to the crystallization tank 11. A support leg 26 is fixedly connected to the lower bottom surface of the loading tank 21. The lower end of the support leg 26 is fixedly connected to the mounting plate 2 7. The mounting plate 27 is fixedly mounted on the outer surface of the crystallization tank 11. The bottom surface of the crystallization tank 11 is fixedly connected with a support leg 111. The support leg 111 is provided with four groups to support the entire crystallization device. The interior of the protective sleeve 13 is filled with heat-insulating cotton 131. The heat-insulating cotton 131 is a component made of glass fiber to preserve the temperature generated by the heating tube 12. The lower end of the stirring shaft 16 is fixedly connected with a spiral shaft 161 to crush larger crystal blocks and facilitate unloading. The stirring blade 17 is provided with a through hole 171 to increase the stirring efficiency. The discharge port 19 is provided with a valve 191 to open or close the discharge port 19 at any time.

[0032] Working principle: First, coal-to-oil is added into the feeding tank 21 from the feed port 22, and then the raw materials are transported to the crystallization tank 11 under the joint action of the feeding pipe 24 and the pump 25, and then the heating tube 12 heats the crystallization tank 11, and at the same time, the motor 15 drives the stirring shaft 16, so that the stirring shaft 16 drives the stirring blade 17 to rotate, thereby accelerating the crystallization efficiency, and then the scraper 18 cleans the inner wall of the crystallization tank 11, and at the same time, the high-temperature steam generated during the crystallization is introduced into the feeding tank 21 through the recovery pipe 23, so as to preheat the coal-to-oil in the feeding tank 21, and at the same time, the steam is integrated into the coal-to-oil, and the extract contained in the steam is subjected to secondary crystallization.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An evaporation crystallization device for coal-to-oil, comprising a crystallization component (1), and a recovery component (2) installed on the crystallization component (1), characterized in that: The crystallization assembly (1) comprises a crystallization tank (11), a heating tube (12) is fixedly connected to the outer surface of the crystallization tank (11), a protective sleeve (13) is fixedly connected to the outer surface of the crystallization tank (11), the heating tube (12) is arranged inside the protective sleeve (13), a control assembly (14) is fixedly connected to the outer surface of the protective sleeve (13), the control assembly (14) is electrically connected to the heating tube (12), a motor (15) is fixedly connected to the upper surface of the crystallization tank (11), a stirring shaft (16) is fixedly connected to the output end of the motor (15), one end of the stirring shaft (16) passes through the crystallization tank (11) and extends into the interior thereof, a stirring blade (17) is fixedly connected to the outer surface of the stirring shaft (16), a scraper (18) is fixedly connected to the outer surface of the stirring shaft (16), and a discharge port (19) is arranged on the lower bottom surface of the crystallization tank (11).

2. The evaporation crystallization device for coal-to-oil according to claim 1, characterized in that: The recovery component (2) comprises a feeding tank (21), the upper surface of the feeding tank (21) is provided with a feeding port (22), the upper surface of the feeding tank (21) is connected to a recovery pipe (23), one end of the recovery pipe (23) is fixedly connected to the crystallization tank (11), the lower bottom of the feeding tank (21) is connected to a feeding pipe (24), a pump (25) is installed on the feeding pipe (24), one end of the feeding pipe (24) is connected to the crystallization tank (11), the lower bottom surface of the feeding tank (21) is fixedly connected to a support foot (26), the lower end of the support foot (26) is fixedly connected to a mounting plate (27), and the mounting plate (27) is fixedly mounted on the outer surface of the crystallization tank (11).

3. The evaporation crystallization device for coal-to-oil according to claim 1, characterized in that: The lower surface of the crystallization tank (11) is fixedly connected with supporting legs (111), and the supporting legs (111) are provided in four groups.

4. The evaporation crystallization device for coal-to-oil according to claim 1, characterized in that: The protective cover (13) is filled with thermal insulation cotton (131), and the thermal insulation cotton (131) is a component made of glass fiber.

5. The evaporation crystallization device for coal-to-oil according to claim 1, characterized in that: The lower end of the stirring shaft (16) is fixedly connected to a spiral shaft (161).

6. The evaporation crystallization device for coal-to-oil according to claim 1, characterized in that: The stirring blade (17) is provided with a through hole (171).

7. The evaporation crystallization device for coal-to-oil according to claim 1, characterized in that: The discharge port (19) is provided with a valve (191).

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