Treatment device of system for reducing discharged air to go to flare during start-up of coal hydrogen production and ammonia synthesis device

Abstract

The utility model provides a treatment device of a system for reducing vent gas to enter a torch during starting of a coal hydrogen production and synthesis ammonia device, which comprises a gasification washing tower which is respectively connected with a gasification torch-removal vent pipeline valve, a gasification crude synthesis gas delivery valve and a crude synthesis gas inlet heating furnace valve through pipelines, the gasification torch-removing emptying pipeline valve is connected with a conversion device heating pipeline emptying valve through a pipeline, and the conversion device heating pipeline emptying valve is respectively connected with a first water separator, a purification tank A inlet valve and a purification tank B inlet valve through pipelines; the bottoms of the purification tank A inlet valve and the purification tank B inlet valve are connected with purification tanks through pipelines. According to the treatment device for reducing the discharged air to enter the torch system during the start-up of the coal hydrogen production and ammonia synthesis device, the problem of low temperature of crude synthesis gas produced by a gasification device during the start-up stage is effectively solved in the existing coal hydrogen production and ammonia synthesis project production process, and waste caused by the fact that the crude synthesis gas is fed into the torch system due to low temperature is avoided.

Description

Technical Field

[0001] The utility model relates to the field of coal-to-hydrogen production, in particular to a processing device for reducing the venting of air to a flare system during the start-up of a coal-to-hydrogen production and a synthetic ammonia device. Background Art

[0002] The coal-to-hydrogen conversion adopts a wide-temperature sulfur-resistant isothermal conversion process, the desulfurization and decarbonization adopts a low-temperature methanol washing process, the synthesis gas refining adopts a liquid nitrogen washing process, the ammonia synthesis adopts a low-pressure synthesis technology, the hydrogen production adopts a PSA pressure swing adsorption process, and the air separation adopts a new full low-pressure internal compression + molecular sieve purification energy-saving process, forming an annual production capacity of 500,000 tons of synthetic ammonia and 80,000 Nm3 / h of hydrogen. The aerospace furnace of the gasification unit is designed to have a daily coal input of 1911t / d. The HT-L pulverized coal pressurized gasification unit includes 1500 coal grinding and drying units, 1600 There are seven units, namely, pulverized coal pressurization and conveying unit, 1700 gasification and synthesis gas washing unit, 1800 slag and ash water treatment unit, 1900 gasification utilities, filter press unit, and ash water hardness removal. The gasification device includes a gasification frame, a slag water frame and a filter press frame. The process design is based on two coal grinding units and one standby. The pulverized coal pressurization and conveying unit and the gasification and synthesis gas washing unit are operated on two production lines. The slag and ash water treatment adopts three-stage flash evaporation and two-stage stripping process to concentrate the black water. Most of the non-condensable gas flashed out is discharged to sulfur recovery for treatment.

[0003] At present, during the start-up process, it takes 2 hours from the ignition of the gasifier of the gasification unit to the production of crude synthesis gas. Due to the low temperature of the black water system of the gasification unit in the initial stage of start-up, the temperature of the crude synthesis gas produced by the gasifier is about 80°C, which is far lower than the designed gas connection condition of 180°C for the conversion device. In order to increase the temperature of the crude synthesis gas, the gasifier needs to be loaded and the black water system needs to be heated. This process takes about 3 hours, and the produced crude synthesis gas is sent to the flare system. In the process of heating the crude synthesis gas, raw coal is wasted and the environment is polluted.

[0004] Therefore, it is necessary to provide a flare system processing device for reducing the venting of air during the start-up of coal-to-hydrogen and synthetic ammonia units to solve the above technical problems. Utility Model Content

[0005] The utility model provides a device for reducing the venting of air to a flare system when starting up a coal-to-hydrogen and synthetic ammonia device, thereby solving the problem that raw coal is wasted during the heating process of the crude synthesis gas produced when the crude synthesis gas is sent to the flare system, and the environment is polluted.

[0006] In order to solve the above technical problems, the utility model provides a flare system processing device for reducing the venting of coal-to-hydrogen and synthetic ammonia devices during startup, comprising:

[0007] A gasification scrubber, wherein the gasification scrubber is respectively connected to a gasification flare-free venting pipeline valve, a gasification crude synthesis gas delivery valve and a crude synthesis gas inlet heating furnace valve through pipelines, the gasification flare-free venting pipeline valve is connected to a conversion device heating pipeline venting valve through a pipeline, the conversion device heating pipeline venting valve is respectively connected to a first water separator, a purification tank A inlet valve and a purification tank B inlet valve through pipelines, and the bottoms of the purification tank A inlet valve and the purification tank B inlet valve are both connected to the purification tank through pipelines;

[0008] The crude synthesis gas inlet heating furnace valve is connected to the heating furnace through a pipeline, and the surface of the heating furnace is respectively provided with a crude synthesis gas inlet heating furnace pipeline, a fire viewing hole, an ignition gas pipeline, a heating furnace burner damper and a fuel gas main pipeline.

[0009] Preferably, one side of the heating furnace is connected to a crude synthesis gas outlet valve of the heating furnace via a pipeline, and the crude synthesis gas outlet valve of the heating furnace is connected to a crude coal gas inlet valve of a conversion device boundary via a pipeline.

[0010] Preferably, a heating furnace radiation section is provided on the top of the heating furnace.

[0011] Preferably, a heating furnace chimney is arranged at the top of the heating furnace radiation section, and a heating furnace chimney flap regulator is arranged inside the heating furnace chimney.

[0012] Preferably, one side of the gasification washing tower is connected to a gasification washing tower inlet valve via a pipeline.

[0013] Preferably, a box is provided at the bottom of the gasification washing tower, and a blocking device is provided inside the box. The blocking device includes a double-headed hydraulic telescopic rod, both ends of the double-headed hydraulic telescopic rod are connected to connecting rods, and one end of the two connecting rods is connected to a blocking plate.

[0014] Preferably, through grooves matching the two blocking plates are provided on the left and right sides of the box surface, one end of the blocking plate is connected to a limiting plate, and a fixing ring is connected to the center position of the surface of the double-headed hydraulic telescopic rod, and the fixing ring is connected to the box surface through a connecting block.

[0015] Preferably, a disassembly plate is provided on the top of the box body, and a cover plate is provided on the top of the gasification washing tower.

[0016] Preferably, a pushing device is provided inside the gasification washing tower, and the pushing device includes a support frame, a hydraulic telescopic rod is connected to the bottom of the support frame, a fixing piece is connected to the bottom end of the hydraulic telescopic rod, and a movable tube is provided inside the fixing piece.

[0017] Preferably, a spray assembly is provided inside the gasification washing tower, and the spray assembly includes a plurality of annular connecting pipes, a delivery pipe is connected between the plurality of annular connecting pipes, a plurality of nozzles are connected to the bottom ends of the plurality of annular connecting pipes, a connecting mounting sleeve is provided on the surface of one of the annular connecting pipes, a connecting mounting head is provided inside the connecting mounting sleeve, and one end of the connecting mounting head is connected to a water inlet pipe.

[0018] Compared with the related art, the device for reducing the venting of air to the flare system provided by the utility model has the following beneficial effects:

[0019] The utility model provides a device for processing coal-to-hydrogen and synthetic ammonia devices to reduce the venting of air to the flare system when starting up. In the existing coal-to-hydrogen and synthetic ammonia project production process, the problem of low temperature of crude synthesis gas produced by the gasification device during the start-up phase is effectively solved, avoiding the waste of sending the crude synthesis gas into the flare system due to low temperature and reducing environmental pollution.

[0020] The overall start-up time was shortened by about 3 hours, with the PSA unit producing hydrogen ahead of schedule and the ammonia synthesis unit producing liquid ammonia ahead of schedule;

[0021] It saves 160 tons of raw coal consumption and increases the output of liquid ammonia by 115 tons, with good economic benefits;

[0022] The treatment process and device have the advantages of good treatment effect, safety and reliability, simple process and low operating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A structural schematic diagram of a first embodiment of a treatment device for reducing venting and removing flare system during startup of a coal-to-hydrogen and synthetic ammonia device provided by the utility model;

[0024] Figure 2 A structural schematic diagram of a second embodiment of a treatment device for reducing venting and removing flare system during startup of a coal-to-hydrogen and synthetic ammonia device provided by the utility model;

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0026] Figure 4 for Figure 2 The first perspective stereoscopic structural diagram of the entire device shown;

[0027] Figure 5 for Figure 2 A second perspective stereoscopic structural diagram of the overall device shown;

[0028] Figure 6A schematic structural diagram of a third embodiment of a treatment device for reducing venting and removing flare system during startup of a coal-to-hydrogen and synthetic ammonia device provided by the utility model;

[0029] Figure 7 for Figure 6 An enlarged schematic diagram of part B is shown.

[0030] Numbers in the figure: 1, gasification scrubber inlet valve, 2, gasification scrubber, 3, gasification flare venting pipeline valve, 4, flare venting pipeline, 5, gasification crude synthesis gas delivery valve, 6, crude synthesis gas inlet valve for heating furnace, 7, ignition gas pipeline, 8, fire viewing hole, 9, crude synthesis gas inlet pipeline for heating furnace, 10, heating furnace chimney, 11, heating furnace chimney flap regulator, 12, crude synthesis gas outlet valve for heating furnace, 13, crude synthesis gas outlet pipeline for heating furnace, 14, heating furnace radiation section, 15, heating furnace burner damper, 16, fuel gas main pipeline, 17, crude coal gas inlet valve for conversion device boundary area, 18, first water separator, 19, conversion device heating pipe pipeline venting valve, 20, purification tank A inlet valve, 21, purification tank B inlet valve,

[0031] 22. Box body,

[0032] 23. Blocking device, 231. Fixing ring, 232. Double-head hydraulic telescopic rod, 233. Connecting rod, 234. Blocking plate,

[0033] 24. Limiting plate, 25. Disassembly plate,

[0034] 26. Pushing device, 261. Support frame, 262. Hydraulic telescopic rod, 263. Fixing part, 264. Movable tube,

[0035] 27. Cover plate,

[0036] 28. Spraying assembly, 281. Ring connecting pipe, 282. Spray head, 283. Delivery pipe, 284. Connecting installation sleeve, 285. Connecting installation head, 286. Water inlet pipe,

[0037] 29. Through groove. DETAILED DESCRIPTION

[0038] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0039] First embodiment

[0040] Please refer to Figure 1 ,in, Figure 1 The schematic diagram of the structure of the first embodiment of the processing device for reducing the venting air and going to the flare system during the startup of the coal-to-hydrogen and synthetic ammonia plant provided by the utility model. The processing device for reducing the venting air and going to the flare system during the startup of the coal-to-hydrogen and synthetic ammonia plant comprises:

[0041] A gasification washing tower 2, wherein the gasification washing tower 2 is respectively connected to a gasification flare-free venting pipeline valve 3, a gasification crude synthesis gas delivery valve 5 and a crude synthesis gas inlet heating furnace valve 6 through pipelines, the gasification flare-free venting pipeline valve 3 is connected to a conversion device warming pipeline venting valve 19 through a pipeline, the conversion device warming pipeline venting valve 19 is respectively connected to a first water separator 18, a purification tank A inlet valve 20 and a purification tank B inlet valve 21 through pipelines, and the bottoms of the purification tank A inlet valve 20 and the purification tank B inlet valve 21 are both connected to the purification tank through pipelines;

[0042] The crude synthesis gas inlet heating furnace valve 6 is connected to the heating furnace through a pipeline, and the surface of the heating furnace is respectively provided with a crude synthesis gas inlet heating furnace pipeline 9, a fire viewing hole 8, an ignition gas pipeline 7, a heating furnace burner damper 15 and a fuel gas main pipeline 16.

[0043] One side of the heating furnace is connected to a crude synthesis gas outlet valve 12 via a pipeline, and the crude synthesis gas outlet valve 12 is connected to a crude coal gas inlet conversion device boundary valve 17 via a pipeline.

[0044] A heating furnace radiation section 14 is arranged on the top of the heating furnace.

[0045] A heating furnace chimney 10 is disposed on the top of the heating furnace radiation section 14 , and a heating furnace chimney flap regulator 11 is disposed inside the heating furnace chimney 10 .

[0046] One side of the gasification washing tower 2 is connected to a gasification washing tower inlet valve 1 through a pipeline.

[0047] The utility model adopts a method of heating the crude synthesis gas. During the start-up process, the gasifier produces crude synthesis gas. The heating furnace heating method is designed to heat the crude coal gas to meet the gas connection conditions of the conversion device. The target overall start-up process is to operate in a non-venting mode from the gasification device to the conversion device; after the temperature of the crude synthesis gas produced by gasification is greater than 180°C, the gasification crude synthesis gas delivery valve is opened, the heating furnace is stopped, and the heating furnace inlet and outlet valves are closed.

[0048] Heating furnace equipment structure introduction function:

[0049] (1) The heating furnace system includes the heating furnace body, burner and other equipment, combustion system, automatic control system and other parts.

[0050] (2) The heating furnace body is supported by multiple columns, and the furnace body consists of a radiation section and a chimney. The lower radiation section is cylindrical, and the furnace tube adopts multi-head parallel spiral coils; a chimney with a flap is designed above the radiation section, and the furnace pressure can be adjusted by controlling the flap. Four burners are installed at the bottom of the furnace at the bottom of the radiation section.

[0051] (3) The combustion system consists of a burner, fuel pipeline, gas venting pipeline, fire extinguishing steam pipeline, and nitrogen replacement purge pipeline. The burner is a natural ventilation type gas burner; the fuel pipeline is divided into a main fuel delivery pipeline and a pilot light fuel delivery pipeline; the smoke and air system uses natural ventilation to supply air to the burner.

[0052] (4) The heating furnace automatic control system includes ignition control, load adjustment control, furnace negative pressure control and security interlock control. The heating furnace is safely ignited by controlling the ignition steps, and the fuel flow is controlled by the material outlet temperature to achieve heating.

[0053] The furnace load is automatically adjusted, and the furnace negative pressure is adjusted through the furnace negative pressure measuring point and the chimney flap valve. During furnace ignition and operation, the relevant parameters can be intuitively displayed through the operation screen on the DCS. Security interlock control is implemented by monitoring sensitive measuring points to ensure the safety of the heating furnace equipment.

[0054] Specific workflow:

[0055] When the coal-to-hydrogen and synthetic ammonia projects are started up, the crude synthesis gas inlet valve 6 and the crude synthesis gas outlet valve 12 of the heating furnace are opened, the gasification crude synthesis gas outlet valve 5 is closed, the crude coal gas inlet valve of the conversion device boundary area and the conversion device heating pipeline vent valve are opened, and the crude coal gas produced by the gasification device is directly sent to the conversion device heating pipeline via the combustion furnace.

[0056] Before igniting the burner of the heating furnace, you must first confirm that there is no flammable gas in the furnace, and then complete the ignition of the pilot lamp through the ignition device. When igniting the pilot lamp, you must first half-open the burner's combustion air inlet flap valve to 45 degrees, and then power on the ignition device to ignite. When you see the spark of the ignition electrode, open the pilot lamp gas valve. If the flame of the pilot lamp is ignited by the electric spark of the ignition electrode, the ionization fire detector will output a signal that the pilot lamp has fire. After the ignition electrode stops working, the pilot lamp flame signal is stable and the ignition of the pilot lamp is complete.

[0057] After the gasification device produces a raw gas flow rate greater than 10,000 m3 / h, open the main gas valve and introduce fuel gas into the gas spray gun to complete the burner main fire operation. If the flame is rigid, it means that the oxygen is sufficient. If the flame is floating, it means that the burner is short of oxygen. A better state is to gradually close the burner air door from large to small, and open the air door one level larger when the burner flame appears to be floating. At this time, the burner is running with low oxygen content. It is estimated that the corresponding furnace oxygen content is about 2.0-3.0%, which can take into account both combustion efficiency and burnout rate. The pollutant emission value at this time is also more reasonable.

[0058] Adjust the heating furnace load according to the crude coal gas output from gasification. When the crude synthesis gas temperature at the outlet of the heating furnace is greater than 180°C and the inlet temperature of the conversion device purification tank is greater than 180°C, the system is normally connected to gas for process adjustment, and the heating pipe line is closed for venting; when the crude synthesis gas temperature at the outlet of the gasification furnace washing tower is greater than 180°C, open the crude synthesis gas delivery valve; stop heating in the heating furnace, close the gas spray gun, and gradually close the crude synthesis gas inlet valve of the heating furnace; withdraw the heating furnace from the system

[0059] Compared with the related art, the device for reducing the venting of air to the flare system provided by the utility model has the following beneficial effects:

[0060] The utility model provides a device for processing coal-to-hydrogen and synthetic ammonia devices to reduce the venting of air to the flare system when starting up. In the existing coal-to-hydrogen and synthetic ammonia project production process, the problem of low temperature of crude synthesis gas produced by the gasification device during the start-up phase is effectively solved, avoiding the waste of sending the crude synthesis gas into the flare system due to low temperature and reducing environmental pollution.

[0061] The overall start-up time was shortened by about 3 hours, with the PSA unit producing hydrogen ahead of schedule and the ammonia synthesis unit producing liquid ammonia ahead of schedule;

[0062] It saves 160 tons of raw coal consumption and increases the output of liquid ammonia by 115 tons, with good economic benefits;

[0063] The treatment process and device have the advantages of good treatment effect, safety and reliability, simple process and low operating cost.

[0064] Second embodiment

[0065] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 Based on the coal-to-hydrogen and synthetic ammonia plant startup reduced venting air to flare system processing device provided in the first embodiment of the present application, the second embodiment of the present application proposes another coal-to-hydrogen and synthetic ammonia plant startup reduced venting air to flare system processing device. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0066] Specifically, the difference of the second embodiment of the present application provided in the device for treating the flare system for reducing the venting during the start-up of a coal-to-hydrogen and synthetic ammonia plant is that, in the device for treating the flare system for reducing the venting during the start-up of a coal-to-hydrogen and synthetic ammonia plant, a box body 22 is provided at the bottom of the gasification washing tower 2, and a blocking device 23 is provided inside the box body 22, and the blocking device 23 includes a double-headed hydraulic telescopic rod 232, both ends of the double-headed hydraulic telescopic rod 232 are connected to connecting rods 233, and one end of each of the two connecting rods 233 is connected to a blocking plate 234.

[0067] The left and right sides of the surface of the box body 22 are provided with through grooves 29 adapted to the two blocking plates 234, one end of the blocking plate 234 is connected to the limiting plate 24, and the center position of the surface of the double-headed hydraulic telescopic rod 232 is connected to a fixing ring 231, and the fixing ring 231 is connected to the surface of the box body 22 through a connecting block.

[0068] A disassembly plate 25 is disposed on the top of the box body 22 , and a cover plate 27 is disposed on the top of the gasification scrubbing tower 2 .

[0069] A pushing device 26 is provided inside the gasification washing tower 2. The pushing device 26 includes a support frame 261. A hydraulic telescopic rod 262 is connected to the bottom of the support frame 261. A fixing piece 263 is connected to the bottom end of the hydraulic telescopic rod 262. A movable pipe 264 is provided inside the fixing piece 263.

[0070] When the blocking plate 234 is closed, the hydraulic telescopic rod 262 is started to drive the movable tube 264 to move upward through the fixing part 263. When the movable tube 264 moves upward to a suitable position, it is convenient to block the two blocking plates 234. The use of the limit plate 24 can play a limiting role when the blocking plate 234 moves inside the gasification washing tower 2.

[0071] The working principle of the flare system treatment device for reducing the air discharge when starting up the coal-to-hydrogen and synthetic ammonia device provided by the utility model is as follows:

[0072] During use, when the liquid at the bottom of the gasification washing tower 2 is to be discharged, first start the double-headed hydraulic telescopic rod 232 to drive the two blocking plates 234 to the inside of the gasification washing tower 2 through the two connecting rods 233, and continue to use the gasification washing tower 2 by dividing the two layers. After the two blocking plates 234 are attached, open the drain pipe at the bottom of the gasification washing tower 2 to discharge the liquid.

[0073] Compared with the related art, the device for reducing the venting of air to the flare system provided by the utility model has the following beneficial effects:

[0074] The utility model provides a processing device for reducing the venting of air to the flare system during the start-up of a coal-to-hydrogen and synthetic ammonia device. A box body 22 with a blocking device 23 and a pushing device 26 are arranged at the bottom of a gasification scrubber 2 for use. When the particulate matter in the liquid at the bottom of the inner wall of the gasification scrubber 2 increases, the liquid at the bottom of the inner wall of the gasification scrubber 2 can be discharged, and the gasification scrubber 2 can be layered through a blocking plate 234 so that it can continue to be used, and it is also convenient to process the liquid inside the gasification scrubber 2.

[0075] Third embodiment

[0076] Please refer to Figure 6 and Figure 7 Based on the coal-to-hydrogen and synthetic ammonia plant startup reduced venting air to flare system processing device provided in the first embodiment of the present application, the third embodiment of the present application proposes another coal-to-hydrogen and synthetic ammonia plant startup reduced venting air to flare system processing device. The third embodiment is only a preferred mode of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0077] Specifically, the difference of the coal-to-hydrogen and synthetic ammonia plant start-up reduction and venting system processing device provided in the third embodiment of the present application is that, in the coal-to-hydrogen and synthetic ammonia plant start-up reduction and venting system processing device, a spray assembly 28 is arranged inside the gasification washing tower 2, and the spray assembly 28 includes a plurality of annular connecting pipes 281, and a conveying pipe 283 is connected between the plurality of annular connecting pipes 281, and a plurality of nozzles 282 are connected to the bottom ends of the plurality of annular connecting pipes 281, and a connecting mounting sleeve 284 is arranged on the surface of one of the annular connecting pipes 281, and a connecting mounting head 285 is arranged inside the connecting mounting sleeve 284, and a water inlet pipe 286 is connected to one end of the connecting mounting head 285.

[0078] The working principle of the flare system treatment device for reducing the air discharge when starting up the coal-to-hydrogen and synthetic ammonia device provided by the utility model is as follows:

[0079] When in use, the water inlet pipe 286 is connected to the external device by means of a threaded connection, and then the external device is started to transport water to the interior of the multiple annular connecting pipes 281 through the water inlet pipe 286 and the multiple delivery pipes 283. After the water is transported to the interior of the multiple annular connecting pipes 281, the water inside the multiple annular connecting pipes 281 is sprayed to the interior of the gasification washing tower 2 through the multiple nozzles 282 by the pressure of the external device to uniformly contact the gas.

[0080] Compared with the related art, the device for reducing the venting of air to the flare system provided by the utility model has the following beneficial effects:

[0081] The utility model provides a flare system processing device for reducing the venting of coal-to-hydrogen and synthetic ammonia devices during startup. A spraying assembly 28 is arranged inside the gasification washing tower 2 to spray water evenly inside the gasification washing tower 2, so that the gas inside the gasification washing tower 2 is evenly in contact with the liquid.

[0082] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A treatment device for reducing the venting air and removing the flare system of a coal-to-hydrogen and synthetic ammonia unit, characterized in that: include: A gasification scrubber, wherein the gasification scrubber is respectively connected to a gasification flare-free venting pipeline valve, a gasification crude synthesis gas delivery valve and a crude synthesis gas inlet heating furnace valve through pipelines, the gasification flare-free venting pipeline valve is connected to a conversion device heating pipeline venting valve through a pipeline, the conversion device heating pipeline venting valve is respectively connected to a first water separator, a purification tank A inlet valve and a purification tank B inlet valve through pipelines, and the bottoms of the purification tank A inlet valve and the purification tank B inlet valve are both connected to the purification tank through pipelines; The crude synthesis gas inlet heating furnace valve is connected to the heating furnace through a pipeline, and the surface of the heating furnace is respectively provided with a crude synthesis gas inlet heating furnace pipeline, a fire viewing hole, an ignition gas pipeline, a heating furnace burner damper and a fuel gas main pipeline.

2. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 1, characterized in that: One side of the heating furnace is connected with a crude synthesis gas outlet valve of the heating furnace through a pipeline, and the crude synthesis gas outlet valve of the heating furnace is connected with a crude coal gas inlet valve of the conversion device boundary through a pipeline.

3. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 1, characterized in that: A heating furnace radiation section is arranged on the top of the heating furnace.

4. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 1, characterized in that: A heating furnace chimney is arranged on the top of the heating furnace radiation section, and a heating furnace chimney flap regulator is arranged inside the heating furnace chimney.

5. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 1, characterized in that: One side of the gasification washing tower is connected with a gasification washing tower inlet valve through a pipeline.

6. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 1, characterized in that: A box is provided at the bottom of the gasification washing tower, and a blocking device is provided inside the box. The blocking device includes a double-headed hydraulic telescopic rod, both ends of the double-headed hydraulic telescopic rod are connected to connecting rods, and one end of the two connecting rods is connected to a blocking plate.

7. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 6, characterized in that: Through grooves matching the two blocking plates are provided on the left and right sides of the box surface, one end of the blocking plate is connected to a limiting plate, and a fixing ring is connected to the center position of the surface of the double-headed hydraulic telescopic rod, and the fixing ring is connected to the box surface through a connecting block.

8. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 6, characterized in that: A disassembly plate is arranged on the top of the box body, and a cover plate is arranged on the top of the gasification washing tower.

9. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 1, characterized in that: A pushing device is arranged inside the gasification washing tower, and the pushing device comprises a support frame, a hydraulic telescopic rod is connected to the bottom of the support frame, a fixing piece is connected to the bottom end of the hydraulic telescopic rod, and a movable pipe is arranged inside the fixing piece.

10. The coal-to-hydrogen and synthetic ammonia plant startup reduced venting and flare system processing device according to claim 1, characterized in that: A spray assembly is arranged inside the gasification washing tower, and the spray assembly includes a plurality of annular connecting pipes, a delivery pipe is connected between the plurality of annular connecting pipes, a plurality of nozzles are connected to the bottom ends of the plurality of annular connecting pipes, a connecting mounting sleeve is arranged on the surface of one of the annular connecting pipes, a connecting mounting head is arranged inside the connecting mounting sleeve, and one end of the connecting mounting head is connected to a water inlet pipe.

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