Carbonization furnace pressure automatic control system

Abstract

The utility model discloses a carbonization furnace pressure automatic control system, which relates to the technical field of carbonization furnaces, and is characterized in that a furnace body reaction part consists of a plurality of groups of furnace bodies, and furnace covers are arranged at the tops of the furnace bodies; the gas conveying part consists of a detection pipe and a circulating part, a gas delivery regulating valve is externally connected to the connecting part of the detection pipe and the furnace cover, the in-furnace detection part consists of an air pressure simulation part and an air pressure compensation part, the air pressure simulation part comprises a mounting ring mounted on the inner side of the furnace cover, an air bag cover is arranged on the mounting ring, and an induction sheet is attached to the outer side of the air bag cover; according to the carbonization furnace pressure automatic control system, the furnace body reaction part, the coal gas conveying part and the in-furnace detection part are arranged, and data processing is carried out, so that the system automatic control rate is increased, errors possibly caused by manual operation are reduced, and the carbonization furnace pressure automatic control system is suitable for large-scale popularization and application. The stability of the system pressure and the post-system pressure is effectively controlled, the system pressure can be effectively stabilized, and the large pressure fluctuation caused by manual operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of carbonization furnaces, and particularly relates to a pressure automatic control system for a carbonization furnace. Background Art

[0002] Semi-coke can replace coke and is widely used in industries such as chemical engineering, smelting, and gas production. At present, the pressure of carbonization furnaces in the semi-coke industry is manually controlled. During operation, for the manual adjustment of the pressure of the carbonization furnace, if the personnel adjustment is not timely or sufficient, it is easy to cause positive pressure at the furnace top. During operation, affected by the pressure of the subsequent system, the coal charging operation of the carbonization furnace, etc., large fluctuations occur.

[0003] At the same time, aiming at the frequent fluctuations of the manually operated pressure, during the operation of the carbonization furnace, relying on manual control of the pressure of the carbonization furnace, manual operation of multiple valves is frequent, which is prone to misoperation or untimely operation, resulting in positive pressure of the carbonization furnace, insufficient or excessive furnace pressure, causing gas leakage and polluting the environment. For this reason, we propose a pressure automatic control system for a carbonization furnace. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pressure automatic control system for a carbonization furnace to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pressure automatic control system for a carbonization furnace includes a furnace body reaction part, the furnace body reaction part consists of multiple groups of furnace bodies, and a furnace cover is connected to the top of the furnace body; a gas transmission part, the gas transmission part consists of a detection pipe and a circulation component, and a gas external delivery regulating valve is externally connected to the connection part of the detection pipe and the furnace cover; an in-furnace detection part, the in-furnace detection part consists of a pressure simulation component and a pressure compensation component, and the pressure simulation component is installed inside the furnace cover.

[0006] The pressure simulation component includes a mounting ring installed on the inner side of the furnace cover. An airbag cover imitating the shape of the furnace cover is provided on the mounting ring. An induction sheet is attached to the outer side of the airbag cover, and a pressure induction chip matching the induction sheet is connected to the furnace cover; the pressure compensation component is installed at the detection pipe.

[0007] Preferably, the circulation component includes a branch pipe, the branch pipe is communicated with multiple detection pipes, one end of the branch pipe is communicated with an inlet pipe, one end of the inlet pipe is connected with a gas blower, one end of the gas blower is connected with an output pipe, and a circulation pipe is connected between the output pipe and the inlet pipe; gas external delivery regulating valves are communicated with the branch pipe, the inlet pipe, the output pipe, and the circulation pipe.

[0008] Preferably, a dent is provided at the top of the airbag cover. When the bottom of the pressure compensation component touches the dent, the top of the airbag cover can be opened from the dent to discharge gas.

[0009] Preferably, the air pressure compensation component includes a connection ring installed inside the detection tube, and a puncturing member is connected in the middle of the connection ring; the air pressure compensation component further includes a storage bladder, the storage bladder is wrapped outside the detection tube, and the storage bladder is located above the gas supply regulating valve. A compensation pipeline is connected to the outside of the storage bladder, and one end of the compensation pipeline is communicated with the bottom of the detection tube.

[0010] Preferably, a carbon removal grid is connected inside the mounting ring.

[0011] Preferably, a plurality of guiding telescopic rods are connected between the bottom of the detection tube and the airbag cover.

[0012] Preferably, the puncturing member includes a pointed cone.

[0013] Preferably, the gas blower includes a centrifugal gas pressurizer or a Roots gas pressurizer.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By setting the furnace body reaction part, gas transmission part, in-furnace detection part and data processing, the present utility model improves the system automatic control rate, reduces the mistakes that may occur in manual operation, effectively controls the stability of the system pressure and the pressure of the subsequent system, can effectively stabilize the system pressure, and reduces the large fluctuations in pressure caused by manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the partial explosion structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the structure of the furnace cover and the air pressure simulation component of the present utility model;

[0019] Figure 4 is Figure 3 the upward view structure diagram of

[0020] Figure 5 is Figure 3 the structure diagram after removing the furnace cover in

[0021] Figure 6 is the structure diagram of the furnace cover.

[0022] In the figure: 1 - furnace body; 2 - furnace cover; 3 - detection pipe; 4 - circulation component; 5 - gas external delivery regulating valve; 6 - air pressure simulation component; 7 - air pressure compensation component; 41 - branch pipe; 42 - inlet pipe; 43 - gas blower; 44 - output pipe; 45 - circulation pipe; 61 - mounting ring; 62 - airbag cover; 63 - induction piece; 64 - air pressure induction chip; 65 - indentation; 66 - decarburization grid; 67 - guiding telescopic rod; 71 - connecting ring; 72 - puncturing piece; 73 - storage bladder; 74 - compensation pipeline. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 6 , the present invention provides a technical solution: a pressure automatic control system for a carbonization furnace. In this solution, the furnace body used is a vertical furnace body. The reaction part of the furnace body is the part used to prepare carbonization. The reaction part of the furnace body is composed of multiple groups of furnace bodies 1, and a furnace cover 2 is connected to the top of the furnace body 1. The number of furnace bodies 1 is determined according to the usage situation of the user. Generally, an even number of items are selected to facilitate adjustment between different furnace bodies 1. In this solution, two groups of furnace bodies are taken as an example. For the convenience of introduction, one of them is named furnace body A, and the other furnace body is named furnace body B. The furnace body 1 and the furnace cover 2 can be sealed with a flange or other sealing structures, and the wood to be carbonized is placed into the furnace.

[0025] Gas delivery part, the gas delivery part is composed of a detection pipe 3 and a circulation component 4, and a gas external delivery regulating valve 5 is externally connected to the connection part of the detection pipe 3 and the furnace cover 2;

[0026] Internal furnace detection part, the internal furnace detection part is composed of an air pressure simulation component 6 and an air pressure compensation component 7. The air pressure simulation component 6 is installed inside the furnace cover 2, and the air pressure compensation component 7 is installed at the detection pipe 3;

[0027] Set the automatic control (PID) for the outlet pressure PT01 of furnace body A and the gas external delivery regulating valve of furnace body A. Set the outlet pressure PT01 of furnace body A as a fixed value X. When the pressure rises, the gas external delivery regulating valve automatically opens wider to adjust the pressure value close to X. When the pressure drops, the gas external delivery regulating valve automatically closes smaller to adjust the pressure value close to X, so as to stabilize the pressure of furnace body A; Set the automatic control (PID) for the outlet pressure PT02 of furnace body A and the gas external delivery regulating valve of furnace body A. The adjustment principle is the same as above to stabilize the pressure of furnace body A;

[0028] After the pressure of furnace body A / B stabilizes, that is, when the pressure of PT03 stabilizes, the frequency conversion of the gas blower is set to be automatically controlled with PT03. Set the pressure of the main gas pipe PT03 to a fixed value Y. When the pressure increases, the frequency of the gas blower slowly increases to control the main pipe pressure value close to Y. When the pressure decreases, the frequency of the gas blower slowly decreases to control the main pipe pressure value close to Y. At this time, the system pressure will be self-regulated by the gas delivery regulating valve of furnace body A / B. The main pipe pressure is controlled by the frequency conversion of the gas blower, and the pressure inside the system and the pressure of the subsequent system will be stably controlled, greatly reducing the situations such as positive pressure and large pressure fluctuations caused by manual operation.

[0029] A data processor controls the opening and closing of the air pressure simulation component 6 and the gas delivery regulating valve 5; the data processor includes a single-chip microcomputer or a PLC controller. By controlling the data processor, corresponding switch values are set. The data processor selected here is an existing device, so it is not shown in the attached drawings.

[0030] Regarding the monitoring or compensation process of pressure during the detection process:

[0031] Set the threshold value a of the gas delivery regulating valve 5 outside each detection pipe 3. The furnace pressure generates a data signal b after passing through the air pressure simulation component 6. When the data signal b meets the threshold value a, it enters the circulation component 4 for circulation discharge. When the data signal b does not meet the threshold value a, the air pressure compensation component 7 conducts air pressure supplementation.

[0032] Please refer to the attached Figure 2 - attached Figure 6 For the convenience of detecting and simulating the air pressure state, by designing the air pressure simulation component 6, which includes a mounting ring 61 installed inside the furnace cover 2. The mounting ring 61 is provided with an airbag cover 62 that imitates the shape of the furnace cover 2. The airbag cover 62 is made of a high-temperature resistant and deformable material. When there is no corresponding air pressure in the furnace, the airbag cover 62 is in a flat state. When the air pressure in the furnace starts to rise, at this time, the airbag cover 62 starts to bulge like a balloon being inflated with gas. Because the airbag cover 62 is designed to imitate the shape of the inside of the furnace cover 2 as a whole, the maximum deformation of the airbag cover 62 is in a position that fits the inside of the furnace cover 2.

[0033] Regarding the induction part, please refer to the attached Figure 3 、attached Figure 5 and attached Figure 6 , an induction sheet 63 is attached to the outside of the airbag cover 62, and a barometric pressure induction chip 64 that matches the induction sheet 63 is connected to the furnace cover 2. The barometric pressure induction chip 64 can select BMP085, a surface-mounted barometric pressure induction chip 64. After the barometric pressure induction chip 64 contacts the induction sheet 63, it sends a data signal to the data processor; a dent 65 is provided at the top of the airbag cover 62. When the bottom of the air pressure compensation component 7 contacts the dent 65, the top of the airbag cover 62 can be opened at the dent 65 to discharge gas.

[0034] The air pressure compensation component 7 includes a connecting ring 71 installed inside the detection tube 3. A puncturing member 72 is connected in the middle of the connecting ring 71. When the puncturing member 72 contacts the dent 65, the dent 65 can be unfolded. The puncturing member 72 includes a pointed cone.

[0035] The air pressure compensation component 7 further includes a storage bladder 73. The storage bladder 73 is wrapped outside the detection tube 3 and is located above the gas delivery regulating valve 5 for the furnace gas. A compensation pipeline 74 is connected to the outside of the storage bladder 73, and one end of the compensation pipeline 74 communicates with the bottom of the detection tube 3.

[0036] When the air pressure in the furnace pushes the airbag cover 62 upwards, the induction sheet 63 contacts the air pressure induction chip 64, thereby detecting the air pressure in the furnace. When the air pressure value meets the emission condition, at this time, the gas delivery regulating valve 5 for the furnace gas is opened, facilitating the presence of a gap between the detection tube 3 and the top of the airbag cover 62, so that the airbag cover 62 can continue to arch upwards along the reserved gap. When the dent 65 on the airbag cover 62 contacts the puncturing member 72, the dent 65 can cause the dent 65 to unfold, and then open the airbag cover 62 to release the furnace gas. When the air pressure induction chip 64 detects that the air pressure in the furnace does not reach the emission standard, at this time, the data processor controls the gas delivery regulating valve 5 for the furnace gas, so that the airbag cover 62 cannot continue to arch upwards along the reserved gap.

[0037] When the discharged gas passes through the gas delivery regulating valve 5 of the detection tube 3 to detect the pressure, when the pressure is insufficient, at this time, the air pressure stored in the storage bladder 73 is pumped in along the compensation pipeline 74 to facilitate maintaining a standard-compliant air pressure during emission.

[0038] For the gas circulation part discharged from the furnace body 1, please refer to the appendix Figure 1 The circulation component 4 includes branch pipes 41. The branch pipes 41 communicate with a plurality of detection tubes 3. One end of the branch pipe 41 communicates with an inlet pipe 42. One end of the inlet pipe 42 is connected to a gas blower 43. The gas blower 43 includes a centrifugal gas pressurizer or a Roots gas pressurizer. One end of the gas blower 43 is connected to an outlet pipe 44. A circulation pipe 45 is connected between the outlet pipe 44 and the inlet pipe 42;

[0039] Gas delivery regulating valves 5 are connected to the branch pipes 41, the inlet pipes 42, the outlet pipes 44, and the circulation pipes 45 respectively. The gas delivery regulating valves 5 are all set to a threshold value a; during the conveying process, when the threshold value a meets the data signal b, the gas is discharged through the outlet pipe 44. When the threshold value a does not meet the data signal b, the gas delivery regulating valve 5 of the outlet pipe 44 is closed, and the gas is circulated through the circulation pipe 45.

[0040] In order to prevent damage to the airbag cover 62 by the high-temperature carbon during the carbonization process in the furnace, a carbon removal grid 66 is connected inside the mounting ring 61.

[0041] When the airbag cover 62 can be stably lifted and lowered inside the furnace cover 2, a plurality of guiding telescopic rods 67 are connected between the bottom of the detection tube 3 and the airbag cover 62.

[0042] It should be noted that in this text, relational terms such as first and second 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure automatic control system for a carbonization furnace, characterized in that: The reaction part of the furnace body, the reaction part of the furnace body is composed of multiple groups of furnace bodies (1), and a furnace cover (2) is connected to the top of the furnace body (1); The gas transmission part, the gas transmission part is composed of a detection pipe (3) and a circulation component (4), and a gas external delivery regulating valve (5) is externally connected to the connection part of the detection pipe (3) and the furnace cover (2); The in-furnace detection part, the in-furnace detection part is composed of a pressure simulation component (6) and a pressure compensation component (7), and the pressure simulation component (6) is installed inside the furnace cover (2); The pressure simulation component (6) includes a mounting ring (61) installed on the inner side of the furnace cover (2), an airbag cover (62) imitating the shape of the furnace cover (2) is arranged on the mounting ring (61), an induction sheet (63) is attached to the outer side of the airbag cover (62), and a pressure induction chip (64) matching the induction sheet (63) is connected to the furnace cover (2); The pressure compensation component (7) is installed at the detection pipe (3).

2. The pressure automatic control system of a carbonization furnace according to claim 1, wherein: The circulation component (4) includes a branch pipe (41), the branch pipe (41) communicates with a plurality of detection pipes (3), one end of the branch pipe (41) communicates with an inlet pipe (42), one end of the inlet pipe (42) is connected to a gas blower (43), one end of the gas blower (43) is connected to an outlet pipe (44), and a circulation pipe (45) is connected between the outlet pipe (44) and the inlet pipe (42); Gas external delivery regulating valves (5) are communicated with the branch pipe (41), the inlet pipe (42), the outlet pipe (44) and the circulation pipe (45).

3. The pressure automatic control system of a carbonization furnace according to claim 1, characterized in that: A dent (65) is arranged at the top of the airbag cover (62), and when the bottom of the pressure compensation component (7) contacts the dent (65), the top of the airbag cover (62) can be opened at the dent (65) to discharge gas.

4. The pressure automatic control system of a carbonization furnace according to claim 3, characterized in that: The pressure compensation component (7) includes a connection ring (71) installed inside the detection pipe (3), and a puncturing part (72) is connected in the middle of the connection ring (71); The pressure compensation component (7) further includes a storage bladder (73), the storage bladder (73) is wrapped outside the detection pipe (3), and the storage bladder (73) is located above the gas external delivery regulating valve (5), a compensation pipeline (74) is connected to the outside of the storage bladder (73), and one end of the compensation pipeline (74) is communicated with the bottom of the detection pipe (3).

5. The pressure automatic control system of a carbonization furnace according to claim 3, wherein: A carbon removal grid (66) is connected inside the mounting ring (61).

6. The pressure automatic control system of a carbonization furnace according to claim 4, characterized in that: Multiple groups of guiding telescopic rods (67) are connected between the bottom of the detection pipe (3) and the airbag cover (62).

7. The pressure automatic control system of a carbonization furnace according to claim 4, characterized in that: The puncturing part (72) includes a pointed cone.

8. The pressure automatic control system of a carbonization furnace according to claim 2, characterized in that: The gas blower (43) includes a centrifugal gas pressurizer or a Roots gas pressurizer.

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