CN218077907U

CN218077907U - Hydrothermal reaction kettle using seawater as solvent and hydrothermal carbonization system

Info

Publication number: CN218077907U
Application number: CN202222231635.5U
Authority: CN
Inventors: 周杰
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-12-20
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses an use hydrothermal reaction kettle and hydrothermal carbomorphism system of sea water as solvent belongs to biological charcoal preparation technical field. The reaction kettle comprises a kettle body, a jacket, a stirrer, a rotating shaft tube and a rotary joint, wherein a feed port is formed in the top of the kettle body, and a discharge port is formed in the bottom of the kettle body; the jacket is hollow and covers the outer wall of the kettle body, a heat conduction oil outlet is formed in the bottom of the jacket, and a heat conduction oil inlet is formed in the top of the jacket; the rotating shaft tube is arranged in the reaction kettle, two ends of the rotating shaft tube are respectively connected with the top and the bottom of the kettle body through rotary joints, and the middle part of the rotating shaft tube is spirally wound to form an internal cooling coil; the stirrer is fixedly connected with the bottom of the rotating shaft tube. The utility model provides a problem that the water resource loss is very big increases the carbon row with heat supply power supply in prior art, and living beings are handled to the new forms of energy-concerving and environment-protective that can make full use of, realize the carbon and seal up the deposit, slow down global climate warming trend.

Description

Hydrothermal reaction kettle using seawater as solvent and hydrothermal carbonization system

Technical Field

The utility model belongs to the technical field of the biochar preparation, concretely relates to use hydrothermal reaction kettle and hydrothermal carbomorphism system of sea water as solvent.

Background

At present, the preparation of the biochar mainly comprises a thermal decomposition method, a microwave thermal cracking method, a hydrothermal carbonization method and the like. Wherein, the hydrothermal carbonization method has lower requirements on temperature and raw materials and has wide application prospect.

The existing hydrothermal carbonization method mainly has the following problems: (1) Most of them adopt water or aqueous solution as solvent, and sometimes need to be prepared into alkaline or acidic catalytic reaction. For large-scale hydrothermal production, the cost is high, and the water resource consumption is extremely large. (2) Many reaction kettles are treated and synthesized in an electric heating mode, carbon emission and resource consumption are caused to a certain extent, and if the reaction kettles are subjected to heat transfer by heat transfer oil on the outer wall of the kettle body, the problem of local overheating often occurs; after the reaction is finished, the reaction product is cooled by adopting a standing cooling mode, and the cooling speed is relatively low.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved is as follows: to the technical problem, the utility model provides an use hydrothermal reation kettle and hydrothermal carbomorphism system of sea water as solvent has solved the problem that the water resource loss is very big and heat supply power supply increases the carbon row among the prior art, and the new forms of energy-concerving and environment-protective that can make full use of handle living beings, realizes the carbon seal up and deposits, slows down global climate warming trend.

The technical scheme is as follows: a hydrothermal reaction kettle using seawater as a solvent comprises a kettle body, a jacket, a stirrer, a rotating shaft tube and a rotary joint, wherein a feed port is formed in the top of the kettle body, and a discharge port is formed in the bottom of the kettle body; the jacket is hollow and covers the outer wall of the kettle body, a heat conduction oil outlet is formed in the bottom of the jacket, and a heat conduction oil inlet is formed in the top of the jacket; the rotary shaft tube is arranged in the kettle body, two ends of the rotary shaft tube are respectively connected with the top and the bottom of the kettle body through rotary joints, and the middle part of the rotary shaft tube is spirally wound to form an internal cooling coil; the stirrer is fixedly connected with the bottom of the rotating shaft tube.

Preferably, the stirrer is U-shaped, and the opening length of the stirrer is larger than the diameter of the inner cooling coil.

Preferably, the side wall of the kettle body is also provided with a temperature probe.

Preferably, the top of the kettle body is also provided with an air outlet.

The utility model provides a hydrothermal carbomorphism system, the system includes generator, conduction oil heating furnace, hydrothermal reaction kettle and conduction oil storage tank, the generator supplies power to conduction oil heating furnace and hydrothermal reaction kettle respectively, the liquid outlet of conduction oil heating furnace passes through the inlet of pipe connection conduction oil storage tank, the liquid outlet of conduction oil storage tank passes through the conduction oil import of pipe connection hydrothermal reaction kettle.

Preferably, the generator is a wind generator and/or a tidal generator.

Preferably, the system further comprises a solar heat collector, and the solar heat collector is connected with the heat conduction oil storage tank through a pipeline and used for heating the heat conduction oil.

Preferably, the solar heat collector is a trough type solar heat collector.

Has the advantages that: the utility model discloses utilize the sea water as hydrothermal reaction's solvent, make full use of sea water resource to a large amount of loss problems of hydrothermal reaction normal water resource have effectively been solved. And the seawater is alkaline, has a certain degree of catalytic action on the hydrothermal reaction, and shortens the time of the hydrothermal reaction. The reaction kettle can uniformly stir materials by arranging the stirrer, so that local overheating is prevented; the arrangement of the inner cooling coil pipe can not only properly cool down during reaction, but also quickly cool down the reaction kettle to room temperature after reaction.

The utility model discloses can utilize solar energy, wind energy and tidal energy as the heat supply power supply, effectively solve the fuel loss and the pollutant discharge problem of hydrothermal reaction heat supply power supply end.

Drawings

FIG. 1 is a schematic structural diagram of a hydrothermal reaction kettle;

FIG. 2 is a schematic view of the construction of the spindle tube and the agitator;

the numerical references in the figures represent the following meanings: 1. the device comprises a kettle body, a jacket, a stirrer, a rotating shaft tube, a rotating joint, a feeding port, a discharging port, a heat conducting oil outlet, a heat conducting oil inlet, an inner cooling coil, a temperature probe and a gas outlet, wherein the jacket is 2, the stirrer is 3, the rotating shaft tube is 4, the rotating joint is 5, the feeding port is 6, the discharging port is 7, the heat conducting oil outlet is 8, the heat conducting oil inlet is 9, the inner cooling coil is 10, the temperature probe is 11, and the gas outlet is 12.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

A hydrothermal reaction kettle using seawater as a solvent comprises a kettle body 1, a jacket 2, a stirrer 3, a rotating shaft pipe 4 and a rotary joint 5. The top of the kettle body 1 is provided with a feeding port 6 for feeding waste biomass and seawater, wherein the seawater is pumped to the feeding port 6 through a water pump; the bottom is provided with a discharge hole 7 which can discharge the product by self weight. The jacket 2 is hollow inside and covers the outer wall of the kettle body 1, a heat conduction oil outlet 8 is formed in the bottom of the jacket, and a heat conduction oil inlet 9 is formed in the top of the jacket. Through the comprehensive cladding at cauldron body 1 outer wall, can fully heat the reaction, evenly release heat. The rotating shaft tube 4 is arranged in the kettle body 1, two ends of the rotating shaft tube are respectively connected with the top and the bottom of the kettle body 1 through rotary joints 5, and the middle part of the rotating shaft tube is spirally wound to form an inner cooling coil 10. The use of the rotary joint 5 can enable the rotating shaft pipe 4 to meet the requirements of rotation and water supply at the same time, and the inner cooling coil pipe 10 is shaped to have a large contact area and can be fully cooled, so that the reaction kettle after reaction can be rapidly cooled to room temperature. The stirrer 3 is fixedly connected with the bottom of the rotating shaft pipe 4. The stirrer 3 is U-shaped, and the opening length of the stirrer is larger than the diameter of the inner cooling coil pipe 10.

Wherein, the side wall of the kettle body 1 is also provided with a temperature probe 11, when the feeding in the kettle body 1 is finished according to the proportion, the display of the temperature probe 11 can be observed, and when the reaction condition is reached, the stirring is started; and meanwhile, whether the temperature is too high can be observed, and cooling water is introduced into the rotating shaft pipe 4 according to the situation. The top of the kettle body 1 is also provided with a gas outlet 12, so that gas impurities in the reaction can be discharged, and meanwhile, the product can be conveniently discharged from the discharge hole 7.

Example 2

The utility model provides a hydrothermal carbonization system, the system includes generator, conduction oil heating furnace, hydrothermal reaction kettle and conduction oil storage tank, the generator supplies power to conduction oil heating furnace and hydrothermal reaction kettle respectively, the liquid outlet of conduction oil heating furnace passes through the inlet of tube coupling conduction oil storage tank, the liquid outlet of conduction oil storage tank passes through the conduction oil import 9 of tube coupling hydrothermal reaction kettle. When the device is used, the generator respectively transmits electric power to the hydrothermal reaction kettle and the heat conduction oil heating furnace through the power grid, the heat conduction oil heating furnace electrically heats the heat conduction oil and stores the heat conduction oil in the heat conduction oil storage tank, the heated heat conduction oil enters the jacket 2 of the hydrothermal reaction kettle through the heat insulation pipeline, and the kettle body 1 is preheated and subjected to subsequent reaction heating.

Wherein, the generator adopts a wind power generator and/or a tidal power generator. By utilizing the two renewable energy sources, the consumption of non-renewable energy sources can be greatly reduced, and the geographical advantages are fully utilized.

The system further comprises a solar heat collector, wherein the solar heat collector can be directly connected with the heat conduction oil storage tank through a pipeline to keep warm and heat the heat conduction oil in the heat conduction oil storage tank, the generator can be turned off to heat the heat conduction oil under the condition of enough illumination, and the solar heat collector is only used for heating. The solar heat collector adopts a groove type solar heat collector.

The utility model can use solar energy, wind energy and tidal energy as the heat supply power source, and effectively solves the problems of fuel loss and pollution emission of the hydrothermal reaction heat supply power end; seawater is used as a solvent of the hydrothermal reaction, and seawater resources are fully utilized, so that the problem of large loss of water resources in the hydrothermal reaction is effectively solved. And the seawater is alkaline, has a certain degree of catalytic action on the hydrothermal reaction, and shortens the time of the hydrothermal reaction.

Claims

1. A hydrothermal reaction kettle using seawater as a solvent is characterized by comprising a kettle body (1), a jacket (2), a stirrer (3), a rotating shaft tube (4) and a rotary joint (5), wherein a feeding hole (6) is formed in the top of the kettle body (1), and a discharging hole (7) is formed in the bottom of the kettle body; the jacket (2) is hollow and wraps the outer wall of the kettle body (1), a heat conduction oil outlet (8) is formed in the bottom of the jacket, and a heat conduction oil inlet (9) is formed in the top of the jacket; the rotating shaft tube (4) is arranged in the kettle body (1), two ends of the rotating shaft tube are respectively connected with the top and the bottom of the kettle body (1) through rotary joints (5), and the middle of the rotating shaft tube is spirally wound to form an internal cooling coil (10); the stirrer (3) is fixedly connected with the bottom of the rotating shaft tube (4).

2. A hydrothermal reaction kettle using seawater as solvent according to claim 1, characterized in that the stirrer (3) is U-shaped, and the opening length is larger than the diameter of the inner cooling coil (10).

3. A hydrothermal reaction kettle using seawater as solvent according to claim 1, characterized in that a temperature probe (11) is further arranged on the side wall of the kettle body (1).

4. A hydrothermal reaction kettle using seawater as solvent according to claim 1, characterized in that the top of the kettle body (1) is further provided with an air outlet (12).

5. The hydrothermal carbonization system with the hydrothermal reaction kettle of claim 1, characterized in that the system further comprises a generator, a heat conduction oil heating furnace and a heat conduction oil storage tank, wherein the generator respectively supplies power to the heat conduction oil heating furnace and the hydrothermal reaction kettle, a heat conduction oil outlet (8) of the heat conduction oil heating furnace is connected with a heat conduction oil inlet of the heat conduction oil storage tank through a pipeline, and a heat conduction oil outlet (8) of the heat conduction oil storage tank is connected with a heat conduction oil inlet (9) of the hydrothermal reaction kettle through a pipeline.

6. The hydrothermal carbonization system of claim 5, wherein the generator is a wind generator and/or a tidal generator.

7. The hydrothermal carbonization system as claimed in claim 5, wherein the system further comprises a solar collector connected with a heat-conducting oil storage tank through a pipeline for heating the heat-conducting oil.

8. The hydrothermal carbonization system of claim 7, wherein the solar collector is a trough solar collector.