Secondary reaction kettle based on straw tar dilution and separation

Abstract

The utility model discloses a two-stage reaction kettle based on straw tar dilution and separation, which comprises a distillation unit, a cooling unit and a dilution unit, the distillation unit utilizes an annular heater to perform fixed high-temperature heating on straw tar and generate oil vapor, the oil vapor enters the cooling unit and then is condensed and cooled to be changed into liquid from gas, and the dilution unit is used for dilution and separation of the straw tar. And finally, the fuel oil flows into the dilution unit, the amount of the liquid fuel oil in the dilution unit is obtained by observing the metering unit, then a diluent is added into the dilution unit, and a corresponding amount of the diluent is added according to the amount of the liquid fuel oil, so that the device is simple in structure and convenient to operate, different temperatures can be adjusted, and fuel oil of different levels can be distilled. The straw tar cracking decomposition fuel oil type problem can be quickly mastered, the fuel oil quality level problem can be detected through the oil taking ports before and after dilution, and the labor cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass liquid fuel, in particular to a secondary reaction kettle for dilution and separation of straw tar. Background Art

[0002] The oxygen-free, high-temperature, low-pressure combustion of straw will produce a large amount of oily black colloidal substance - tar. Tar is a high-calorific value liquid composed of insufficient oil and carbon monoxide. It will produce a lot of smoke when burned and is not suitable as fuel for internal combustion engines. The modern industrial refining system not only has complex reaction devices, but also has complex crude oil components, requiring complex equipment for refining. Therefore, straw tar cannot be diluted using crude oil refining equipment. A brand-new device is required for refining and dilution, and it needs to be easy to operate and convenient for testing the quality of the fuel before and after dilution. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a secondary reactor based on straw tar dilution and separation. The secondary reactor based on straw tar dilution and separation includes a distillation unit, a cooling unit, and a dilution unit. The distillation unit includes a hydraulic press, a hydraulic telescopic rod, a piston, an annular heater, a primary reactor, a tar residue discharge outlet, and a valve 2. The hydraulic press is fixedly connected to the hydraulic telescopic rod, the hydraulic telescopic rod is fixedly connected to the piston, the piston is slidably connected to the primary reactor, and the piston slides on the inner wall of the primary reactor. The annular heater is arranged on the outer wall of the primary reactor and is fixedly connected to the primary reactor. The tar residue discharge outlet is arranged at the lower end of the primary reactor; the cooling unit includes a condensing tower, a conveying pipe, a water inlet, and a water outlet. The water inlet and the water outlet form circulating cooling water in the condensing tower, and the conveying pipe leads to the dilution unit; the dilution unit includes a diluent tank, a valve 1, a secondary reactor, a finished oil discharge outlet, an oil extraction port, a mixer, and a metering unit; the diluent tank and the oil extraction port are both arranged at the upper end of the secondary reactor, the metering unit is arranged on the inner side wall of the secondary reactor, the finished oil discharge outlet is arranged at the lower end of the secondary reactor, and the mixer is arranged inside the secondary reactor.

[0004] Preferably, the primary reactor is sleeved in an annular heater, which is a temperature-controlled heater. Preferably, the piston is retractable inside and at the upper end of the primary reactor.

[0005] Preferably, a valve 1 is provided between the diluent tank and the secondary reactor.

[0006] Preferably, the tar residue discharge outlet is provided with a valve 2.

[0007] The beneficial effects of the utility model are:

[0008] 1. The distillation unit, cooling unit and dilution unit of this device can greatly simplify the number and structure of devices and shorten the refining and dilution time. At the same time, the corresponding amount of diluent can be added according to the actual dilution data, and the tar residue can be discharged through the telescopic piston of the hydraulic press.

[0009] 2. The secondary reactor is provided with a metering unit, which automatically measures the amount of diluent added by the fuel control valve 1 in the secondary reactor, and adds different amounts of diluent according to different fuels. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the structure of the utility model of adding tar;

[0012] Figure 3 It is a schematic diagram of the structure of the utility model for discharging tar;

[0013] A: Hydraulic press, B: Hydraulic telescopic rod, C: Piston, D: Ring heater, E: Primary reactor, F: Tar, G: Condensation tower, G1: Delivery pipe, G2: Water inlet, G3: Water outlet, H: Diluent tank, L: Valve 1, M: Secondary reactor, N: Finished oil outlet, P: Oil extraction port, Q: Mixer, R: Tar residue outlet, S: Metering unit, T: Valve 2; DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] 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 actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes 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 sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device that includes the elements; for example, xx phase is not a fixed word, but a state of matter, such as the liquid phase of a metal, which is the molten state of the metal, and does not specifically refer to a fixed object. For example, the "slag phase" in this application is the filter residue after the target fuel is filtered out after the straw powder and catalyst are treated with heat transfer oil, or a mixture of the filter residue and heat transfer oil. If the two liquid phases are mixed but not miscible, they are divided into oil phase and water phase by density stratification. The water phase is not water in the noun sense, but a pictographic expression made to distinguish the liquid after extraction. It may also be alcohol or vinegar, the purpose of which is to distinguish the two liquid mixtures in terms of expression.

[0016] See also Figure 1-3 As shown, a secondary reactor based on straw tar dilution and separation includes a distillation unit, a cooling unit, and a dilution unit. The distillation unit includes a hydraulic press A, a hydraulic telescopic rod B, a piston C, a ring heater D, a primary reactor E, a tar residue discharge port R, and a valve 2 (T). The hydraulic press A is fixedly connected to the hydraulic telescopic rod B, the hydraulic telescopic rod B is fixedly connected to the piston C, the piston C is slidably connected to the primary reactor E, and the piston C slides on the inner wall of the primary reactor E. The ring heater D is arranged on the outer wall of the primary reactor E and is fixedly connected to the primary reactor E. The tar residue discharge port R is arranged at the lower end of the primary reactor E. The cooling unit includes a condensing tower G, a conveying pipe G1, a water inlet G2, and a water outlet G3. The water inlet G2 and the water outlet G3 form circulating cooling water in the condensing tower G, and the conveying pipe G1 leads to the dilution unit; the dilution unit includes a diluent tank H, a valve 1 (L), a secondary reactor M, a finished oil discharge outlet N, an oil extraction port P, a mixer Q, and a metering unit S; the diluent tank H and the oil extraction port P are both arranged at the upper end of the secondary reactor M, the metering unit S is arranged on the internal side wall of the secondary reactor M, the finished oil discharge outlet N is arranged at the lower end of the secondary reactor M, and the mixer Q is arranged inside the secondary reactor M.

[0017] Furthermore, the primary reactor is sleeved in a ring heater D, which is a temperature-controlled heater.

[0018] Furthermore, the piston C is telescopically moved inside and above the primary reactor E.

[0019] Furthermore, a valve 1 (L) is provided between the diluent tank H and the secondary reactor M.

[0020] Furthermore, the tar residue discharge outlet R is provided with a valve 2 (T).

[0021] Working process and principle of this utility model:

[0022] Start the hydraulic press A, the hydraulic telescopic rod B will retract upwards, driving the piston C to rise. At this time, add tar to the primary reactor E, then start the hydraulic press A, the hydraulic telescopic rod B will extend downwards, driving the piston C to descend, just in time with the sliding part in the primary reactor E. Figure 1 When piston C is in the position, hydraulic press A is closed. The primary reactor E and piston C now form a sealed space. Ring heater D is then turned on and heated to 600°C and maintained. The tar generates steam due to the high temperature. The steam flows along delivery pipe G1 into condenser G. Recirculating water from inlet G2 and outlet G3 condenses the tar vapor in condenser G, cooling it to a liquid state and flowing into the secondary reactor M. After a period of distillation, the tar no longer generates steam. A small amount of fuel is taken from oil extraction port P to test its composition and concentration. The molar volume of the liquid fuel in the secondary reactor M is measured by metering unit S, and the corresponding amount of diluent is added by control valve 1 (L). Agitator Q is started to stir the liquid fuel to fully dilute it. After dilution is complete, a small amount of fuel is taken from oil extraction port P to test its composition and concentration again. The dilution process is repeated until the desired composition ratio and concentration are achieved. The diluted liquid fuel is then discharged from finished fuel outlet N.

[0023] At the same time, the ring heater D continues to heat to 800 degrees Celsius, and the tar continues to produce high-temperature steam. The above dilution process is repeated in the secondary reactor M. After the dilution is completed, the hydraulic press A is turned on as shown in the attached figure. Figure 3 The slag phase tar is discharged through the tar residue discharge port R. Due to the high viscosity of the slag phase tar, the slag phase tar remaining in the primary reactor E is dissolved by adding industrial alcohol and then discharged; at the same time, the above process of adding tar to the primary reactor E and high-temperature distillation is repeated.

[0024] The above is merely illustrative and is used to explain some of the features of the present invention. The appended claims are intended to claim the widest possible scope that can be imagined, and the embodiments presented herein are merely illustrative of selected implementations based on the combination of all possible embodiments. Therefore, the applicant intends that the appended claims are not limited by the selection of examples that illustrate the features of the present invention. Moreover, advances in science and technology will form possible equivalents or replacements that are not currently considered due to inaccuracies in language expression, and these changes should also be interpreted as being covered by the appended claims where possible.

Claims

1. Based on the straw tar dilution and separation secondary reactor, it is characterized by: The invention comprises a distillation unit, a cooling unit and a dilution unit. The distillation unit comprises a hydraulic press (A), a hydraulic telescopic rod (B), a piston (C), an annular heater (D), a primary reactor (E), a tar residue discharge port (R) and a valve 2 (T). The hydraulic press (A) is fixedly connected to the hydraulic telescopic rod (B), the hydraulic telescopic rod (B) is fixedly connected to the piston (C), the piston (C) is slidably connected to the primary reactor (E), and the piston (C) slides on the inner wall of the primary reactor (E). The annular heater (D) is arranged on the outer wall of the primary reactor (E) and is fixedly connected to the primary reactor (E). The tar residue discharge port (R) is arranged at the lower end of the primary reactor (E); the cooling unit comprises a condensation tower (G ), a delivery pipe (G1), a water inlet (G2), and a water outlet (G3), wherein the water inlet (G2) and the water outlet (G3) form circulating cooling water in the condensation tower (G), and the delivery pipe (G1) leads to a dilution unit; the dilution unit comprises a diluent tank (H), a valve 1 (L), a secondary reactor (M), a finished oil material discharge outlet (N), an oil extraction port (P), a stirrer (Q), and a metering unit (S); the diluent tank (H) and the oil extraction port (P) are both arranged at the upper end of the secondary reactor (M), the metering unit (S) is arranged on the inner side wall of the secondary reactor (M), the finished oil material discharge outlet (N) is arranged at the lower end of the secondary reactor (M), and the stirrer (Q) is arranged inside the secondary reactor (M).

2. The straw tar dilution and separation secondary reactor according to claim 1, characterized in that: The primary reactor is sleeved in a ring heater (D), which is a temperature-controlled heater.

3. The straw tar dilution and separation secondary reactor according to claim 1, characterized in that: The piston (C) is telescopic inside and at the upper end of the primary reactor (E).

4. The straw tar dilution and separation secondary reactor according to claim 1, characterized in that: A valve 1 (L) is provided between the diluent tank (H) and the secondary reactor (M).

5. The straw tar dilution and separation secondary reactor according to claim 1, characterized in that: The tar residue discharge port (R) is provided with a valve 2 (T).

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