CN-121972080-A - Supercritical carbonization production equipment for solid materials

CN121972080ACN 121972080 ACN121972080 ACN 121972080ACN-121972080-A

Abstract

The invention provides supercritical carbonization production equipment for solid materials, which relates to the technical field of chemical equipment, and comprises a pressurizing transition bin, a pressure relief transition bin and a control system, wherein the pressurizing transition bin is used for filling the solid materials stored in the pressurizing transition bin into a reaction bin when the internal pressure of the pressurizing transition bin reaches and maintains a target pressure matched with the internal pressure of the reaction bin, the reaction bin is used for enabling the solid materials to react with a reaction medium, the pressure relief transition bin is used for receiving the reacted materials from the reaction bin when the internal pressure of the pressurizing transition bin reaches and maintains the target pressure, the control system is configured to control a first fluid system to continuously supply the reaction medium into the reaction bin and maintain the temperature and the pressure in the reaction bin to meet preset temperature and pressure requirements, and a second fluid system is controlled to supply high-pressure fluid into the pressurizing transition bin and the pressure relief transition bin so as to realize pressure rising of the interior of the pressurizing transition bin. Wherein, the pressurization transition bin, the reaction bin and the pressure relief transition bin are connected in sequence. The invention can improve the production efficiency of solid materials and reduce the production energy consumption.

Inventors

WEI BAILIN
Zhao Liuhao
JIANG DAIYU
HOU JINXIN
JIANG LIMING
SHEN XIAODONG
ZHAO PING
HUANG QUAN
CHEN WENPING
MA YING
LU QINGSONG
FAN YUANZHI

Assignees

安徽海百纳新材料科技有限公司
杭州华黎泵业有限公司
南京工业大学

Dates

Publication Date: 20260505
Application Date: 20260128

Claims (10)

1. The supercritical carbonization production equipment for the solid material is characterized by comprising a material circulation system, a first fluid system, a second fluid system and a control system; the material circulation system comprises a pressurizing transition bin, a reaction bin and a pressure relief transition bin which are sequentially connected; The pressurizing transition bin is used for filling solid materials stored in the pressurizing transition bin into the reaction bin when the internal pressure of the pressurizing transition bin reaches and maintains a target pressure matched with the internal pressure of the reaction bin; the reaction bin is used for enabling the solid materials to react with a reaction medium; The pressure relief transition bin is used for receiving reacted materials from the reaction bin when the internal pressure reaches and maintains the target pressure; the control system is configured to: Controlling the first fluid system to continuously supply a reaction medium into the reaction bin and maintaining the temperature and the pressure in the reaction bin to meet the preset temperature and pressure requirements; And controlling the second fluid system to supply high-pressure fluid into the pressurizing transition bin and the pressure relief transition bin so as to realize pressure boosting in the second fluid system.
2. The supercritical carbonization production plant for solid materials according to claim 1, wherein the material circulation system further comprises: The feeding bin is connected with the pressurizing transition bin and is used for filling solid materials to be reacted into the pressurizing transition bin; and the discharging bin is connected with the pressure relief transition bin and is used for collecting reacted materials discharged from the pressure relief transition bin.
3. The supercritical carbonization production equipment for solid materials according to claim 2, wherein the number of the feeding bin, the pressurizing transition bin, the pressure relief transition bin and the discharging bin is at least one; the feeding bins and the pressurizing transition bins are equal in number and are connected in one-to-one correspondence; the pressure relief transition bins and the discharging bins are equal in number and are connected in one-to-one correspondence.
4. A solid material supercritical carbonization production device according to claim 2 or 3, characterized in that in the material circulation system, a first switching device is arranged between the feeding bin and the corresponding pressurizing transition bin, a second switching device is arranged between the pressurizing transition bin and the reaction bin, a third switching device is arranged between the reaction bin and the pressure relief transition bin, a fourth switching device is arranged between the pressure relief transition bin and the corresponding discharging bin, and a fifth switching device is arranged at the discharging hole of the discharging bin; The default state of each switching device is the off state.
5. The supercritical carbonization production facility for solid materials according to claim 4, wherein the first switching device, the second switching device, the third switching device, the fourth switching device and the fifth switching device are all electric switching devices; The control system is further configured to: When determining that the solid materials in the target feeding bin need to be reacted, controlling the corresponding first switching device to be opened so as to enable the solid materials in the target feeding bin to flow into the corresponding pressurizing transition bin; After determining that all solid materials in the target feeding bin flow into the corresponding pressurizing transition bin, controlling the corresponding first switching device to be closed, and controlling the second fluid system to supply high-pressure fluid into the corresponding pressurizing transition bin and the corresponding pressure relief transition bin so as to enable the internal pressure of the corresponding pressurizing transition bin and the corresponding pressure relief transition bin to reach and maintain the target pressure; When the internal pressures of the pressurizing transition bin and the pressure relief transition bin reach and maintain the target pressure and no reaction is carried out in the reaction bin, the second switching device is controlled to be opened so that solid materials in the pressurizing transition bin flow into the reaction bin; after the fact that all solid materials in the pressurizing transition bin flow into the reaction bin is determined, the corresponding second switching device is controlled to be closed; after the reaction in the reaction bin is determined to be completed, controlling the corresponding third switching device to be opened so as to enable the reacted materials in the reaction bin to flow into the corresponding pressure relief transition bin; after the fact that all the reacted materials in the reaction bin flow into the corresponding pressure relief transition bin is determined, controlling the corresponding third switching device to be closed, and controlling the corresponding fourth switching device to be opened so that the reacted materials in the pressure relief transition bin flow into the corresponding discharge bin; After the fact that all the reacted materials in the pressure relief transition bin flow into the corresponding discharging bin is determined, controlling the fourth switching device to be closed, and controlling the fifth switching device to be opened so that the reacted materials in the discharging bin flow into a preset material collecting device; And after determining that all the reacted materials in the discharging bin flow into a preset material collecting device, controlling the fifth switching device to be closed.
6. The supercritical carbonization production plant for solid materials according to claim 4, wherein the first switching device, the second switching device, the third switching device, the fourth switching device and the fifth switching device are manual switching devices.
7. The supercritical carbonization production plant for solid materials according to claim 1, wherein the first fluid system comprises a first pressurizing device, a heating device and a temperature sensor; The first pressurizing device is used for pressurizing the reaction medium fluid from the cooling device so that the pressure of the reaction medium fluid meets the preset pressure requirement; the heating device is used for heating the pressurized reaction medium fluid; the temperature sensor is used for detecting the temperature data of the heated reaction medium fluid and sending the temperature data to the control system, and the control system performs parameter control on the heating device according to the temperature data so as to convert the reaction medium fluid into a supercritical state; and the reaction medium in the supercritical state meeting the preset pressure requirement flows into the reaction bin under the drive of the first supercharging device, so that the temperature and the pressure in the reaction bin meet the preset temperature and pressure requirements.
8. The supercritical carbonization production plant for solid materials according to claim 7, wherein the first pressurizing device comprises a first pressurizing pump and a pressurizing tank; the first booster pump is used for boosting the reaction medium fluid from the cooling device; The pressurizing tank is used for temporarily storing the pressurized reaction medium fluid so as to timely supplement the reaction medium for the reaction bin after the reaction medium in the reaction bin is consumed.
9. The solid material supercritical carbonization production plant according to claim 7, wherein the second fluid system comprises a second booster pump; The second booster pump is used for boosting the reaction medium fluid from the cooling device so that the pressure of the reaction medium fluid meets the preset pressure requirement; And the reaction medium fluid meeting the preset pressure requirement flows into the pressurizing transition bin and the pressure relief transition bin under the drive of the second booster pump, so that the internal pressure of the pressurizing transition bin and the pressure relief transition bin reaches and maintains the target pressure.
10. The supercritical carbonization production plant for solid materials according to claim 7, further comprising the cooling device; The cooling device is used for cooling the reaction medium flowing out of the reaction medium storage device so as to ensure that the reaction medium is in a fluid state when entering the first fluid system or the second fluid system.

Description

Supercritical carbonization production equipment for solid materials Technical Field The invention relates to the technical field of chemical equipment, in particular to supercritical carbonization production equipment for solid materials. Background In chemical production, the treatment of solid materials by supercritical fluid technology is required to be performed in a high-temperature and high-pressure environment, for example, the treatment of steel slag by supercritical carbon dioxide fluid. Currently, a kettle reactor is used to treat solid materials using supercritical fluid technology. However, when the kettle type reactor is operated, the whole kettle body is in a closed high-pressure state, and the inherent defect is that the whole main reaction kettle is required to be decompressed, uncapped and operated every time the whole kettle is fed and discharged, and then resealed and boosted to a working state. The process not only leads to complete interruption of production and greatly reduces production efficiency, but also consumes a large amount of energy by repeated boosting and pressure relief cycles, and is difficult to meet the requirement of large-scale industrialized continuous production. Based on the method, how to improve the production efficiency of solid materials and reduce the production energy consumption becomes a technical problem to be solved urgently. Disclosure of Invention In view of the above, the present invention provides a supercritical carbonization production device for solid materials. The invention adopts the following technical scheme: a supercritical carbonization production device for solid materials comprises a material circulation system, a first fluid system, a second fluid system and a control system; the material circulation system comprises a pressurizing transition bin, a reaction bin and a pressure relief transition bin which are sequentially connected; The pressurizing transition bin is used for filling solid materials stored in the pressurizing transition bin into the reaction bin when the internal pressure of the pressurizing transition bin reaches and maintains a target pressure matched with the internal pressure of the reaction bin; the reaction bin is used for enabling the solid materials to react with a reaction medium; The pressure relief transition bin is used for receiving reacted materials from the reaction bin when the internal pressure reaches and maintains the target pressure; the control system is configured to: Controlling the first fluid system to continuously supply a reaction medium into the reaction bin and maintaining the temperature and the pressure in the reaction bin to meet the preset temperature and pressure requirements; And controlling the second fluid system to supply high-pressure fluid into the pressurizing transition bin and the pressure relief transition bin so as to realize pressure boosting in the second fluid system. Optionally, the material circulation system further includes: The feeding bin is connected with the pressurizing transition bin and is used for filling solid materials to be reacted into the pressurizing transition bin; and the discharging bin is connected with the pressure relief transition bin and is used for collecting reacted materials discharged from the pressure relief transition bin. Optionally, the number of the feeding bin, the pressurizing transition bin, the pressure relief transition bin and the discharging bin is at least one; the feeding bins and the pressurizing transition bins are equal in number and are connected in one-to-one correspondence; the pressure relief transition bins and the discharging bins are equal in number and are connected in one-to-one correspondence. Optionally, in the material circulation system, a first switching device is arranged between the feeding bin and the corresponding pressurizing transition bin, a second switching device is arranged between the pressurizing transition bin and the reaction bin, a third switching device is arranged between the reaction bin and the pressure relief transition bin, a fourth switching device is arranged between the pressure relief transition bin and the corresponding discharging bin, and a fifth switching device is arranged at a discharging hole of the discharging bin; The default state of each switching device is the off state. Optionally, the first switching device, the second switching device, the third switching device, the fourth switching device and the fifth switching device are all electric switching devices; The control system is further configured to: When determining that the solid materials in the target feeding bin need to be reacted, controlling the corresponding first switching device to be opened so as to enable the solid materials in the target feeding bin to flow into the corresponding pressurizing transition bin; After determining that all solid materials in the target feeding bin flow into the corresponding pressurizi