Blast furnace gas recovery device

Abstract

The utility model provides a blast furnace gas recovery device. The blast furnace gas recovery device comprises a blast furnace gas pipe network, the recycling component comprises a water supplementing assembly, an overflow assembly and a non-return water seal cylinder, a water inlet and an overflow opening are formed in the side wall of the non-return water seal cylinder, the water supplementing assembly is connected with the non-return water seal cylinder through the water inlet, and the overflow assembly is connected with the non-return water seal cylinder through the overflow opening; a blast furnace gas recovery pipe network; the gas control component comprises an input control assembly and an output control assembly, the input control assembly is arranged on the blast furnace gas pipe network, and the output control assembly is arranged on the blast furnace gas recovery pipe network; a converter gas storage cabinet; and the controller is used for controlling the working states of the input control assembly, the output control assembly, the water replenishing assembly and the overflow assembly. And the diffused blast furnace gas is stored in the converter gas storage cabinet by the recovery component and is connected into the converter gas recovery system, so that the blast furnace gas is recycled, and the resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the field of blast furnace gas recovery in steel enterprises, in particular to a blast furnace gas recovery device. Background Art

[0002] In steel joint ventures that have not built blast furnace gas holders, pressure fluctuations and frequent release of excess gas in the blast furnace gas system are common phenomena. In the preheating furnace switching process, due to the large changes in user consumption, the terminal adjustment process cannot be followed up and adjusted in time, resulting in the need for the blast furnace gas release tower to briefly release this part of the blast furnace gas.

[0003] In the prior art, ignition or direct release is often used to treat blast furnace gas that is briefly released from a blast furnace gas release tower. Direct release causes environmental pollution and does not meet the national standards for gas emissions from steel companies. Therefore, most steel companies use ignition for treatment. Both treatment methods result in a large amount of gas resource waste, affect the stable operating pressure of the blast furnace gas pipeline network, and affect the use control of blast furnace gas users.

[0004] The utility model attempts to solve the above problems and proposes a blast furnace gas recovery device. By arranging a converter gas storage cabinet, a recovery component, a gas control component and a controller, the blast furnace gas enters the recovery component at a certain pressure through the gas control component and then flows into the converter gas storage cabinet, wherein the recovery component adopts a water seal to prevent the recovered blast furnace gas from flowing back to the original pipeline when the blast furnace gas pressure value is low, and the converter gas storage and pressurization system balances and buffers the released blast furnace gas, and stores the released blast furnace gas in the converter gas storage cabinet, and connects to the converter gas recovery system, thereby realizing the integration of blast furnace gas recovery and converter gas recovery system, achieving zero emission of blast furnace gas, improving the utilization rate of blast furnace gas resources, and reducing resource waste. Utility Model Content

[0005] The utility model provides a blast furnace gas recovery device, which stores the released blast furnace gas in a converter gas storage cabinet through a recovery component and connects to a converter gas recovery system, thereby realizing blast furnace gas recovery and reducing resource waste.

[0006] In order to achieve the above object, the utility model provides a blast furnace gas recovery device, comprising:

[0007] A blast furnace gas pipeline network, wherein an output port is provided at one end of the blast furnace gas pipeline network;

[0008] A recovery component, the recovery component includes a water replenishment component, an overflow component and a check water seal, the top of the check water seal is provided with a first pipe opening and a second pipe opening, the output port extends to the bottom of the inner cavity of the check water seal through the first pipe opening, the side wall of the check water seal is provided with a water inlet and an overflow port, the water replenishment component is connected to the check water seal through the water inlet, the overflow component is connected to the check water seal through the overflow port, and the position of the water inlet is higher than the position of the overflow port;

[0009] A blast furnace gas recovery pipe network, wherein an input port is provided at one end of the blast furnace gas recovery pipe network, and the input port is connected to the second pipe opening;

[0010] A gas control component, the gas control component comprising an input control component and an output control component, the input control component is arranged on the blast furnace gas pipeline network near the output port, and the output control component is arranged on the blast furnace gas recovery pipeline network near the input port;

[0011] A converter gas storage cabinet, the blast furnace gas recovery pipeline network is connected to the converter gas storage cabinet; and

[0012] A controller for controlling the working states of the input control component, the output control component, the water replenishment component and the overflow component, wherein the controller is externally arranged and connected to the input control component, the output control component, the water replenishment component and the overflow component.

[0013] Furthermore, the input control component includes a first butterfly valve, a first blind plate valve, a regulating valve and a pressure test gauge. The right side of the regulating valve is arranged close to the output port, the other end of the pressure test gauge is located on the left side of the regulating valve, and the first blind plate valve is arranged between the first butterfly valve and the pressure test gauge.

[0014] Furthermore, the output control component includes a second butterfly valve and a second blind plate valve, one end of the second blind plate valve is arranged close to the input port, and the other end of the second blind plate valve is provided with the second butterfly valve.

[0015] Furthermore, the blast furnace gas recovery device also includes a flow meter, which is arranged between the second blind plate valve and the input port, and the flow meter is arranged close to the overflow port.

[0016] Furthermore, the water replenishment component includes a water replenishment pipeline and a water replenishment valve. The water replenishment pipeline adopts a U-tube design. One end of the water replenishment pipeline is connected to the water inlet, and the water replenishment valve is arranged at the other end of the water replenishment pipeline.

[0017] Furthermore, the overflow assembly includes an overflow pipeline, a shutoff valve and a drainer, one end of the overflow pipeline is connected to the overflow port, the shutoff valve is provided on the overflow pipeline, and the other end of the overflow pipeline is connected to the drainer.

[0018] Furthermore, the blast furnace gas recovery device also includes a heating component, which is arranged at the bottom of the check water seal cylinder. The heating component includes a heating base, a thermometer, a heating assembly and a clamping assembly. The heating base is arranged between the bottom of the check water seal cylinder and the ground. A blocking platform is arranged on the side wall of the inner cavity of the heating base. The check water seal cylinder extends into the inner cavity of the heating base. The blocking platform supports the check water seal cylinder. The thermometer is arranged on the overflow pipeline. The heating assembly is arranged at the bottom of the inner cavity of the heating base, and the heating assembly is located in the inner circle of the blocking platform. The clamping assembly is arranged on the heating base.

[0019] Furthermore, the first butterfly valve, the first blind plate valve and the regulating valve are all electrically controlled.

[0020] Furthermore, the second butterfly valve and the second blind plate valve are both electrically controlled.

[0021] Furthermore, the heating component and the flow meter are connected to the controller.

[0022] Compared with the prior art, a blast furnace gas recovery device according to an embodiment of the utility model recycles the originally released or ignited blast furnace gas by setting a recovery component, a gas control component, a converter gas storage cabinet and a controller, and incorporates the recovered blast furnace gas into the converter gas recovery system for reuse in the steel converter process, wherein the gas control component controls the blast furnace gas, and the recovery component includes a water replenishment component, an overflow component and a check water seal. When the blast furnace gas pressure value is greater than the set value, the overflow component discharges the water in the check water seal, so that the blast furnace gas directly enters the converter gas storage cabinet through the check water seal. When the blast furnace gas pressure value is less than the set value, the water replenishment component replenishes water into the check water seal, and the water level overflows the port for inputting blast furnace gas to realize an isolation water seal, thereby preventing the gas in the converter gas storage cabinet from flowing back and ensuring the stability of the overall recovery system. At the same time, a controller is provided to access the gas control component, the water replenishment component and the overflow component to achieve smoothness in the recovery process and ensure the stability of blast furnace gas recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall plan view layout structure of a blast furnace gas recovery device of the utility model;

[0024] Figure 2 It is a schematic cross-sectional structure diagram of a reverse water-proof seal cylinder of a blast furnace gas recovery device of the utility model;

[0025] Figure 3 This is a schematic structural diagram of a water replenishment component of a blast furnace gas recovery device of the utility model;

[0026] Figure 4 A three-dimensional structural diagram of a blast furnace gas recovery device of the utility model; and

[0027] Figure 5 The utility model is a schematic diagram of the top view of the recovery component of the blast furnace gas recovery device.

[0028] Reference numerals:

[0029] 10. Blast furnace gas pipeline network; 101. Output port;

[0030] 20. Recovery components; 201. Water supply components; 2011. Water supply pipeline; 2012. Water supply valve;

[0031] 202. Overflow assembly; 2021. Overflow pipeline; 2022. Isolation valve; 2023. Drain;

[0032] 203. Check water seal cylinder; 2031. First pipe opening; 2032. Second pipe opening; 2033. Water inlet; 2034. Overflow port;

[0033] 30. Blast furnace gas recovery network; 301. Input port;

[0034] 40. Gas control component; 401. Input control assembly; 4011. First butterfly valve; 4012. First blind plate valve; 4013. Regulating valve; 4014. Pressure test gauge;

[0035] 402. output control assembly; 4021. second butterfly valve; 4022. second blind plate valve;

[0036] 50. flow meter; 60. heating component; 601. heating base; 6011. blocking platform; 6012. movable hole; 602. thermometer; 603. heating assembly; 604. clamping assembly; 6041. first blocking part; 6042. second blocking part; 6043. third blocking part; 60411. first clamping part; 60421. second clamping part; 60431. third clamping part; 6044. movable rod; 6045. hydraulic cylinder;

[0037] 70. Converter gas storage cabinet. DETAILED DESCRIPTION

[0038] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments.

[0039] like Figure 1-5 As shown, a blast furnace gas recovery device provided according to an embodiment of the utility model includes:

[0040] The blast furnace gas network 10; a recovery component 20, the recovery component 20 includes a water replenishment component 201, an overflow component 202 and a non-return water seal 203, wherein the non-return water seal 203 is provided with a water replenishment component 201 and an overflow component 202, the water replenishment component 201 replenishes water into the non-return water seal 203, and at the same time, the blast furnace gas network 10 extends into the bottom through a first pipe opening 2031 arranged at the top of the non-return water seal 203, and when the blast furnace gas pressure output by the blast furnace gas network 10 reaches a certain value, the blast furnace gas presses the water in the non-return water seal 203 into the overflow component 202; a blast furnace gas recovery network 30, the blast furnace gas recovery network 30 is connected to the second pipe opening 2032 arranged at the top of the non-return water seal 203, so that the blast furnace gas is recovered through the blast furnace gas The pipeline 30 enters the converter gas storage cabinet 70; the gas control component 40, the gas control component 40 includes an input control component 401 and an output control component 402, wherein the input control component 401 is arranged on the blast furnace gas pipeline 10, which is convenient for the later control and measurement of the blast furnace gas pressure, and the output control component 402 is arranged on the blast furnace gas recovery pipeline 30 to control the blast furnace gas entering the converter gas storage cabinet 70; the converter gas storage cabinet 70, the converter gas storage cabinet 70 receives the blast furnace gas transported by the blast furnace gas recovery pipeline 30 and stores it; the controller, the controller is respectively connected to the input control component 401, the output control component 402, the water replenishment component 201 and the overflow component 202, to realize the linkage of each component and ensure the stability of blast furnace gas recovery.

[0041] like Figure 2 As shown, one end of the blast furnace gas pipe network 10 is provided with an output port 101. The blast furnace gas pipe network 10 is connected to the blast furnace, so that the short-term blast furnace gas generated by the blast furnace enters the blast furnace gas pipe network 10 and is output to the check water seal cylinder 203 through the output port 101 provided on the blast furnace gas pipe network 10.

[0042] like Figure 1 , Figure 2 and Figure 4As shown, the recovery component 20 includes a water replenishment component 201, an overflow component 202 and a check water seal cylinder 203, and a first pipe opening 2031 and a second pipe opening 2032 are arranged on the top of the check water seal cylinder 203, wherein the output port 101 of the blast furnace gas pipeline network 10 extends to the bottom of the cylinder through the first pipe opening 2031, and the side wall of the check water seal cylinder is provided with a water inlet 2033 and an overflow port 2034, the water replenishment component 201 is connected to the check water seal cylinder 203 through the water inlet 2033, the overflow component 202 is connected to the check water seal cylinder 203 through the overflow port 2034, and the position of the water inlet 2033 is higher than the position of the overflow port 2034. The first pipe opening 2031 of the water-proof seal 203 is used to connect the output port 1011 of the extended blast furnace gas pipeline 10, and the second pipe opening 2032 is used to connect the blast furnace gas recovery pipeline 30, and the water replenishment component 201 replenishes water into the water-proof seal 203, so that the water level overflows the output port 101, and the water-sealing effect of the output port 101 of the blast furnace gas pipeline 10 is achieved by utilizing the characteristic that blast furnace gas is insoluble in water. When the amount of blast furnace gas in the water-proof seal 203 increases, the water is discharged from the overflow port 203. 034 is squeezed into the overflow component 202, so that the blast furnace gas enters the blast furnace gas recovery pipeline 30 at the second pipe opening 2031. After completing the short-term transmission and storage of the blast furnace gas, the water replenishment component 201 is started to store water. During this period, the water replenishment component 201 and the overflow component 202 are both provided with valves to prevent the blast furnace gas from being discharged from the water inlet 2033 and the overflow port 2034. At the same time, it can effectively prevent the blast furnace gas recovered in the converter storage cabinet 70 from being reversed to the blast furnace gas system when the operating pressure of the blast furnace gas pipeline network 10 is reduced.

[0043] like Figure 1 , Figure 2 and Figure 4 As shown, an input port 301 is provided at one end of the converter gas recovery pipeline 30, and the input port 301 is connected to the second pipe opening 2032. After the water level in the reverse water seal tube 203 drops to a certain height, the blast furnace gas will enter the converter gas recovery pipeline 30 through the input port 30.

[0044] like Figure 1 As shown, the gas control component 40 includes an input control component 401 and an output control component 402. The input control component 401 is arranged on the blast furnace gas pipeline network 10 and close to the output port 101, and the output control component 402 is arranged on the blast furnace gas recovery pipeline network 30 and close to the input port 301. The input control component 401 controls the blast furnace gas in the blast furnace gas pipeline network 10, and the output control component 402 controls the blast furnace gas to be transferred and stored in the converter gas storage cabinet 70.

[0045] Further, such as Figure 1As shown, the input control assembly 401 includes a first butterfly valve 4011, a first blind plate valve 4012, a regulating valve 4013 and a pressure test gauge 4014, wherein the right side of the regulating valve 4013 is arranged near the output port 101, the other end of the pressure test gauge 4014 is located on the left side of the regulating valve 4013, and the first blind plate valve 4012 is arranged between the first butterfly valve 4011 and the pressure test gauge 4014. The first butterfly valve 4011 and the first blind plate valve 4012 can both cut off the blast furnace gas pipeline network 10, realizing one main and one standby in pipeline closure, and the regulating valve 4013 has the function of regulating flow, controlling the flow of blast furnace gas output in the blast furnace gas pipeline network 10, and the pressure test gauge is used to test the specific pressure value of blast furnace gas flowing out of the blast furnace gas pipeline network 10, so as to facilitate the later control of the regulating valve 4013 to realize flow control.

[0046] Further, such as Figure 1 As shown, the output control component 402 includes a second butterfly valve 4021 and a second blind plate valve 4022, wherein one end of the second blind plate valve 4022 is arranged near the input port 301, and the other end of the second blind plate valve 4022 is provided with a second butterfly valve 4021. The second butterfly valve 4021 and the second blind plate valve 4022 are used to cut off the gas flow in the converter gas recovery pipeline 30, which is convenient for later maintenance.

[0047] Further, such as Figure 1 As shown, the blast furnace gas recovery device further includes a flow meter 50, which is disposed between the input port 301 and the second blind plate valve 4022. The flow meter 50 is used to count the flow of the blast furnace gas entering the blast furnace gas recovery pipe network 30.

[0048] Further, such as Figure 3 As shown, the water replenishment assembly 201 includes a water replenishment pipeline 2011 and a water replenishment valve 2012. The water replenishment pipeline 2011 adopts a U-shaped pipeline design, and one end of the water replenishment pipeline 2011 is connected to the water inlet 2032, and the other end of the water replenishment pipeline 2011 is provided with a water replenishment valve 2012. The water replenishment pipeline 2011 adopts a U-shaped pipeline, so that the blast furnace gas forms a water seal when passing through the U-shaped pipeline of the water replenishment pipeline 2011 through the water inlet 2032, effectively blocking the blast furnace gas. At the same time, the water replenishment valve 2012 can also effectively block the blast furnace gas, and the water replenishment valve 2012 is electrically controlled.

[0049] Further, such as Figure 2As shown, the overflow assembly 202 includes an overflow pipeline 2021, a cutoff valve 2022 and a drainer 2023, wherein one end of the overflow pipeline 2021 is connected to the overflow port 2034, the cutoff valve 2022 is arranged on the overflow pipeline 2021, and the other end of the overflow pipeline 2021 is connected to the drainer 2023. The cutoff valve 2022 is electrically controlled, and the cutoff valve 2022 is in a normally open state, which is convenient for the later maintenance of the drainer 2023. The drainer 2023 is a vertical water-sealed drainer, which can seal the overflow port 2034 after the water is discharged.

[0050] Further, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the blast furnace gas recovery device also includes a heating component 60, which is arranged at the bottom of the check water seal cylinder 203. The heating component 60 includes a heating base 601, a thermometer 602, a heating component 603 and a clamping component 604, wherein the heating base 601 is arranged between the bottom of the check water seal cylinder 203 and the ground, a blocking platform 6011 is arranged on the side wall of the inner cavity of the heating base 601, the check water seal cylinder 203 extends into the inner cavity of the heating base 601, and the blocking platform 6011 holds up the check water seal cylinder 203, the thermometer 602 is arranged on the overflow pipe 2021, and the heating component 603 is arranged at the bottom of the inner cavity of the heating base 601, and the heating component 603 is located in the inner circle of the blocking platform 601, and the clamping assembly 604 is arranged in the heating base 601. The utility model is arranged outdoors, wherein the water-proof seal cylinder 203 adopts a water-sealed method. In the winter in the north, the temperature is often low, so that the water in the water-proof seal cylinder 203 is easy to freeze, thereby affecting the overall operation, so a heating component 60 is arranged to heat the bottom of the water-proof seal cylinder 203 to prevent freezing. The heating base 601 is arranged on the ground, and the blocking platform 6011 in the heating base 601 is used to hold up the water-proof seal cylinder 203, and the clamping assembly 604 is used to clamp the water-proof seal cylinder 203 on the blocking platform 6011 to prevent the water-proof seal cylinder 203 from vibrating during operation, and the heating assembly 603 adopts electromagnetic heating, so that the heating assembly 603 directly acts on the bottom of the water-proof seal cylinder 203 to heat the water-proof seal cylinder 203.

[0051] Furthermore, the first butterfly valve 4011, the first blind plate valve 4012 and the regulating valve 4013 are all electrically controlled. The controller connects the electric valves to realize convenient operation.

[0052] Furthermore, the second butterfly valve 4021 and the second blind plate valve 4022 are both electrically controlled. The controller connects the electric valves to realize convenient operation.

[0053] Furthermore, the flow meter 50 and the heating component 60 are connected to the controller. The controller adopts a PLC controller to realize signal reception, processing and transmission, so as to realize the process combination and realize the blast furnace gas recovery by controlling various components. The corresponding program is set in the PLC controller in advance, for example, the time of blast furnace gas release is entered into the PLC controller, so as to facilitate the later control of the opening size of the regulating valve 4013, and at the same time, the value of the pressure test table 4014 is connected to the PLC controller, the water supply valve 2012 and the drainer 2023 are connected to the PLC controller, and the first butterfly valve 4011, the first blind plate valve 4012, the second butterfly valve 4021 and the second blind plate valve 4022 are also connected to the PLC controller, so as to facilitate the control of opening and closing by the PLC controller during the later maintenance.

[0054] Preferably, Figure 4 and Figure 5 As shown, the clamping assembly 604 includes a first clamping block 6041, a second clamping block 6042 and a third clamping block 6043, and the first clamping block 6041, the second clamping block 6042 and the third clamping block 6043 are sequentially arranged on the side wall of the heating base 601 in three equal parts with the center of the heating base 601 as the center of the circle, the first clamping block 6041 includes a hydraulic cylinder 6045, a movable rod 6044 and a first clamping portion 60411, the second clamping block 6042 includes a hydraulic cylinder 6045, a movable rod 6044 and a second clamping portion 60421, and the third clamping block 6043 includes a hydraulic cylinder 6045, a movable rod 6044 and a third clamping portion 60431, wherein the first clamping portion 60411, the second clamping portion 6042 includes a hydraulic cylinder 6045, a movable rod 6044 and a third clamping portion 60431. 421 and the third clamping part 60431 are semicircular, and a plurality of movable holes 6012 are arranged on the side wall of the heating base 601, one end of the movable rod 6044 passes through the movable hole 6012 and is connected with the first clamping part 60411, the second clamping part 60421 and the third clamping part 60431, and the other end of the movable rod 6044 is connected with the movable end of the hydraulic cylinder 6045; when clamping, the hydraulic cylinder 6045 of the first blocking part 6041, the second blocking part 6042 and the third blocking part 6043 are started at the same time, and the hydraulic cylinder 6045 drives the first clamping part 60411, the second clamping part 60421 and the third blocking part 60431 to move toward the center of the reverse water seal cylinder 203 until the reverse water seal cylinder 203 is clamped.

[0055] In the embodiment of the utility model, the first butterfly valve 4011, the first blind plate valve 4012, the second butterfly valve 4021 and the second blind plate valve 4022 are all in the normally open state. When the blast furnace outputs blast furnace gas to the blast furnace gas pipeline network 10, the blast furnace gas pressure value in the blast furnace gas pipeline network 10 is measured by the pressure test meter 4014. When the pressure value meets the value set by the PLC controller, the blast furnace gas extends from the output port 101 into the bottom of the check water seal cylinder 203 and slowly fills the check water seal cylinder 203; when the blast furnace gas reaches a certain amount in the capacity of the check water seal cylinder 203, the blast furnace gas will squeeze the water in the check water seal cylinder 203 from the overflow port 2034 to the drainer 2023. At this time, the drainer 2023 is used to receive the squeezed water. When the drainer 2023 no longer receives water, the drainer 2023 will automatically block to prevent the blast furnace gas from being discharged from the overflow port 2034. After a certain amount of water is discharged, the blast furnace gas in the non-return water seal cylinder 203 will enter the blast furnace gas recovery pipeline 30 from the input port 301 and flow to the converter gas storage cabinet 70. The PLC controller controls the regulating valve 4013 to adjust the flux of the blast furnace gas. The flow meter 50 then counts the blast furnace gas flowing into the blast furnace gas recovery pipeline 30 and feeds it back to the PLC controller. The capacity of the converter gas storage cabinet 70 is counted through the PLC controller. When the blast furnace no longer outputs blast furnace gas to the blast furnace gas pipeline 10 due to changes in the process steps, the blast furnace gas pressure value of the blast furnace gas pipeline 10 is lower than the set pressure value, the PLC controller controls the regulating valve 4013 to become smaller, and at the same time controls the water replenishment valve 2012 to start replenishing water into the non-return water seal cylinder 203, and stops replenishing water when the set liquid level is reached. At this time, the output port 101 of the inner cavity of the non-return water seal cylinder 203 is located below the water surface, achieving a water seal effect.

[0056] The water-stop seal 203 is fixed on the ground through a heating base 601, and the heating base 601 is provided with a blocking platform 6011 for holding up the water-stop seal 203, so that the bottom of the water-stop seal 203 and the heating base 601 form a hollow cavity, and the cavity is provided with a plurality of heating components 602, and the plurality of heating components 602 can directly contact the bottom of the water-stop seal 203, so as to heat the bottom of the water-stop seal 203, wherein the heating component 602 adopts electromagnetic heating, and heats the water in the water-stop seal 203 through heat conduction to prevent the water in the water-stop seal 203 from freezing. The working principle is that the PLC controller controls the heating component 60 2. The bottom of the check water seal 203 is heated to a set time. When the check water seal 203 discharges water to the drainer 2023, the thermometer 50 arranged on the overflow pipe 2021 detects the temperature of the discharged water, and feeds back the water temperature value to the PLC controller. The program in the PLC controller controls the heating component 602 to increase or decrease the power, thereby controlling the temperature of the water in the check water seal 203. The clamping component 604 in the heating component 60 is clamped during the initial installation of the check water seal 203, and the clamping component 604 is locked by controlling the PLC controller to prevent the check water seal 203 from shaking during operation.

[0057] According to a blast furnace gas recovery device of an embodiment of the utility model, a recovery component is set, and the blast furnace gas pipeline and the blast furnace gas recovery pipeline are connected to the recovery component, the recovery component includes a water replenishment component, an overflow component and a check water seal, and a first pipe opening and a second pipe opening are set on the top of the check water seal, wherein the output port of the blast furnace gas pipeline extends into the bottom of the inner cavity of the check water seal through the first pipe opening, and the blast furnace gas recovery pipeline is connected to the check water seal through the second pipe opening. At this time, a water replenishment component is set to replenish water to the inner cavity of the check water seal, so that the output port is under the water surface, so as to achieve the purpose of water sealing and prevent the gas of the blast furnace gas recovery pipeline from being reversed into the blast furnace gas pipeline. At the same time, an overflow component is set to meet the requirement that when the blast furnace gas is recovered, the output port leaks out by discharging the water in the check water seal, so that the blast furnace gas output from the blast furnace gas pipeline enters the blast furnace gas recovery pipeline. In the utility model, the water supply component includes a water supply pipeline and a water supply valve, and the overflow component includes a shut-off valve, an overflow pipeline and a drainer, wherein the water supply pipeline is U-shaped in design and the drainer can block the water inlet and the overflow port to prevent the blast furnace gas in the check water seal cylinder from flowing out from the water inlet and the overflow port, thereby ensuring the sealing of the check water seal cylinder. In the utility model, a gas control component is provided, and the gas control component includes an input control component and an output control component, wherein the input control component is provided on the blast furnace gas pipeline network, and the output control component is provided on the blast furnace gas recovery pipeline network, the input control component is used to control the blast furnace gas and detect the pressure value of the output blast furnace gas, and the output component is used to control the flow of the recovered blast furnace gas in the blast furnace gas recovery pipeline network, the input component includes a first butterfly valve, a first blind plate valve, a regulating valve and a pressure test gauge, wherein the first butterfly valve and the first blind plate valve are used to control the flow of blast furnace gas in the blast furnace gas pipeline network, the pressure test gauge tests the pressure value of the blast furnace gas flowing out of the regulating valve, and the regulating valve is flexibly controlled by the value measured by the pressure test gauge, and the output component includes a second butterfly valve and a second blind plate valve, and the second butterfly valve and the second blind plate valve are used to control the flow of blast furnace gas in the blast furnace gas recovery pipeline network. In the utility model, the blast furnace gas recovery pipe network is connected to the converter gas storage cabinet, the converter gas storage cabinet recovers the blast furnace gas, and the converter gas storage cabinet is also connected to the converter gas pipe network, so as to realize the reuse of resources. In the utility model, by setting a flow meter on the blast furnace gas recovery pipe network, the flow rate of the blast furnace gas flowing into the blast furnace gas recovery pipe network is counted, and the capacity in the converter gas storage cabinet is intuitively understood.In the utility model, a heating component is provided, wherein the heating component includes a heating base, a thermometer, a heating assembly and a clamping assembly, wherein the heating base is used to fix the check water seal cylinder on the ground, and the clamping assembly is arranged on the heating base, so that the clamping assembly and the check water seal cylinder are clamped together to ensure the stability of the check water seal cylinder during operation and reduce the shaking of the check water seal cylinder. The thermometer and the heating assembly mainly solve the problem that the water in the check water seal cylinder is easy to freeze in winter. By arranging the thermometer on the overflow pipe of the overflow assembly, the temperature of the discharged water is measured, thereby controlling the water temperature in the check water seal cylinder heated by the heating assembly to prevent the water in the check water seal cylinder from freezing. In the utility model, a controller is provided for controlling an output control component, an input control component, a flow meter, a thermometer, a water replenishment component and an overflow component, wherein the pressure test gauge, flow meter and thermometer of the output control component are used to detect various data and send the data to the controller, which is processed by a program set in the controller and sends a signal to a corresponding component to control the corresponding component, achieve different process controls, realize the linkage of valve opening or closing, flow adjustment, water replenishment, overflow, clamping and heating, improve the overall smoothness of blast furnace gas recovery, and realize the recycling and utilization of released blast furnace gas.

[0058] In the description of the present invention, it is necessary to understand that the terms “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” orientations or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A blast furnace gas recovery device, characterized in that: include: A blast furnace gas pipeline network, wherein an output port is provided at one end of the blast furnace gas pipeline network; A recovery component, the recovery component includes a water replenishment component, an overflow component and a check water seal, the top of the check water seal is provided with a first pipe opening and a second pipe opening, the output port extends to the bottom of the inner cavity of the check water seal through the first pipe opening, the side wall of the check water seal is provided with a water inlet and an overflow port, the water replenishment component is connected to the check water seal through the water inlet, the overflow component is connected to the check water seal through the overflow port, and the position of the water inlet is higher than the position of the overflow port; A blast furnace gas recovery pipe network, wherein an input port is provided at one end of the blast furnace gas recovery pipe network, and the input port is connected to the second pipe opening; A gas control component, the gas control component comprising an input control component and an output control component, the input control component is arranged on the blast furnace gas pipeline network near the output port, and the output control component is arranged on the blast furnace gas recovery pipeline network near the input port; A converter gas storage cabinet, the blast furnace gas recovery pipeline network is connected to the converter gas storage cabinet; as well as A controller for controlling the working states of the input control component, the output control component, the water replenishment component and the overflow component, wherein the controller is externally arranged and connected to the input control component, the output control component, the water replenishment component and the overflow component.

2. The blast furnace gas recovery device according to claim 1, characterized in that: The input control assembly includes a first butterfly valve, a first blind plate valve, a regulating valve and a pressure test gauge. The right side of the regulating valve is arranged close to the output port, the other end of the pressure test gauge is located on the left side of the regulating valve, and the first blind plate valve is arranged between the first butterfly valve and the pressure test gauge.

3. The blast furnace gas recovery device according to claim 1, characterized in that: The output control assembly includes a second butterfly valve and a second blind plate valve, one end of the second blind plate valve is arranged close to the input port, and the other end of the second blind plate valve is provided with the second butterfly valve.

4. The blast furnace gas recovery device according to claim 1, characterized in that: The water replenishment component includes a water replenishment pipeline and a water replenishment valve. The water replenishment pipeline adopts a U-tube design. One end of the water replenishment pipeline is connected to the water inlet, and the water replenishment valve is arranged at the other end of the water replenishment pipeline.

5. The blast furnace gas recovery device according to claim 3, characterized in that: The overflow assembly includes an overflow pipeline, a shutoff valve and a drainer. One end of the overflow pipeline is connected to the overflow port. The shutoff valve is arranged on the overflow pipeline. The other end of the overflow pipeline is connected to the drainer.

6. The blast furnace gas recovery device according to claim 5, characterized in that: The device further comprises a flow meter, wherein the flow meter is arranged between the second blind plate valve and the input port, and the flow meter is arranged close to the overflow port.

7. The blast furnace gas recovery device according to claim 6, characterized in that: It also includes a heating component, which is arranged at the bottom of the anti-return water seal cylinder. The heating component includes a heating base, a thermometer, a heating assembly and a clamping assembly. The heating base is arranged between the bottom of the anti-return water seal cylinder and the ground. A blocking platform is arranged on the side wall of the inner cavity of the heating base. The anti-return water seal cylinder extends into the inner cavity of the heating base. The blocking platform holds up the anti-return water seal cylinder. The thermometer is arranged on the overflow pipeline. The heating assembly is arranged at the bottom of the inner cavity of the heating base, and the heating assembly is located in the inner circle of the blocking platform. The clamping assembly is arranged on the heating base.

8. The blast furnace gas recovery device according to claim 2, characterized in that: The first butterfly valve, the first blind plate valve and the regulating valve are all electrically controlled.

9. The blast furnace gas recovery device according to claim 3, characterized in that: The second butterfly valve and the second blind plate valve are electrically controlled.

10. The blast furnace gas recovery device according to claim 7, characterized in that: The heating component and the flow meter are connected to the controller.

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