Furnace baking device of gasification furnace

Abstract

The utility model discloses a gasifier baking device which is characterized in that a gasifier is divided into a combustion chamber and a chilling chamber, the top of the chilling chamber is connected with a preheating burner, the preheating burner is connected with a gas pipeline, a camera with a remote transmission function is placed at a fire observation hole of the preheating burner, and the flame condition of the preheating burner is transmitted to a computer display of a central control room. And an operator can observe the flame condition of the preheating burner. A first outlet of the chilling chamber is communicated with the air extractor, the air extractor is communicated with an outlet pipe of the screw air compressor, the air extractor is driven by air kinetic energy to extract gas in the chilling chamber and the combustion chamber, and negative pressure is established. The gas pipeline is provided with the cut-off valve, when the compressor jumps, the interlocking emergency cut-off valve is closed, and backfire accidents caused by rising of negative pressure in the gasification furnace are prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the water coal paste gasification technical field, concretely relates to a gasification furnace baking furnace device. BACKGROUND

[0002] The water coal paste gas flow bed gasification furnace lined with refractory bricks, after the refractory bricks are installed in the furnace, a gas extractor is used to gradually heat the furnace, and a negative pressure is established in the gasification furnace during the heating process. The whole heating and checking process takes 30 days, which greatly affects the progress of the project. The current gasification heating process mainly uses steam-driven gas extractors, but the steam supply time often does not match the gasification furnace heating time during project construction, ultimately affecting the production progress of the whole project. SUMMARY

[0003] In view of the above technical problems, the utility model discloses a gasification furnace baking furnace device, the gasification furnace includes combustion chamber and quenching chamber, the combustion chamber bottom conical structure passes through the drop pipe and goes in quenching chamber, and the drop pipe top is connected with the combustion chamber bottom and adopts the flange, and the drop pipe lower part is connected with the quenching chamber and the bubble breaker strip through the clamp, realizes the gas phase, and the preheating burner is inserted into the upper portion of the combustion chamber.

[0004] The preheating burner is connected with the gas pipeline, and a remote camera is placed at the fire hole part of the preheating burner, the flame condition of the preheating burner is transmitted to the computer display of the central control room, and the operator can observe the flame condition of the preheating burner.

[0005] The upper outlet of the quenching chamber is communicated with the gas extractor, the gas extractor is communicated with the outlet pipe of the screw air compressor, the air kinetic energy is used to drive the gas extractor to extract the gas in the quenching chamber and the combustion chamber, and the negative pressure is established.

[0006] A remote pressure gauge is arranged on the communication pipeline between the upper outlet of the quenching chamber and the gas extractor, and an adjusting valve is arranged on the communication pipeline between the gas extractor and the outlet pipe of the screw air compressor.

[0007] The gas pipeline is provided with a cut-off valve and a gas adjusting valve, and the screw air compressor opening and stopping signal is interlocked with the cut-off valve.

[0008] When the screw air compressor is stopped, the interlocked cut-off valve is closed, and backfire is prevented.

[0009] A quenching chamber liquid level meter is arranged outside the quenching chamber and is used to observe the liquid level in the quenching chamber.

[0010] The bottom of the quenching chamber is connected with a slag pool, and the slag pool is connected with the upper portion of the quenching chamber through a preheating water pump.

[0011] The utility model has the advantages that:

[0012] 1. The air extractor is communicated with the outlet pipe of the screw air compressor, and the air extractor is driven by air kinetic energy. The screw air compressor can use a mobile screw air compressor, or other air sources with stable pressure can be used instead. During the construction period, the gasification furnace does not need to wait for the steam pipeline to be put into operation before carrying out the furnace baking work, thereby shortening the project production time.

[0013] 2. The camera transmits signals to the manned gasification furnace operation room. The operator observes the flame length and adjusts the gas flow. If the flame detection signal interlock fails during the baking period, the operator can discover in time, close the gas shut-off valve, and improve the safety.

[0014] 3. The gas pipeline is provided with a shut-off valve, and the screw air compressor start-stop signal is interlocked with the shut-off valve. When the screw air compressor is stopped, the interlocked shut-off valve is closed to prevent backfire and improve the safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the gasification furnace baking device.

[0016] Figure 2 It is an enlarged schematic diagram of the preheating burner.

[0017] In the figure, 1 is a screw air compressor, 2 is an air extractor, 3 is a regulating valve, 4 is a gas pipeline, 5 is a quenching chamber liquid level meter, 6 is a preheating water pump, 7 is a slag pool, 8 is a combustion chamber, 9 is a quenching chamber, 10 is a preheating burner, 11 is a remote pressure gauge, 12 is a shut-off valve, 13 is a slag locking valve, 14 is a gas regulating valve, 15 is a remote camera, 16 is a computer display, and 17 is a downcomer. DETAILED DESCRIPTION

[0018] The technical scheme of the present application will be further explained and described below in combination with the drawings and specific embodiments. It should be noted that the following embodiments are only preferred embodiments of the present application, and should not be understood as limiting the present application. The protection scope of the present application should be based on the content recorded in the claims. The modifications and replacements of the technical scheme of the present application made by those skilled in the art without creative labor fall within the protection scope of the present application.

[0019] Embodiment 1

[0020] A gasification furnace baking device, the gasification furnace comprises a combustion chamber 8 and a quenching chamber 9, the bottom of the combustion chamber 8 is communicated with the top of the quenching chamber 9 through a downcomer 17, and a preheating burner 10 is inserted into the upper part of the combustion chamber 8; the preheating burner 10 is connected with the gas pipeline 4, and a camera 15 with remote transmission function is placed at the flame observation hole part of the preheating burner 10. The flame condition of the preheating burner 10 is transmitted to the computer display 16 in the central control room, and the operator can observe the flame condition of the preheating burner 10.

[0021] The bottom of the combustion chamber 8 is tapered, and a downcomer is arranged to extend into the quenching chamber 9, the top of the downcomer is connected to the bottom of the combustion chamber 8 by a flange, and the lower part of the downcomer is connected to the quenching chamber 9 by a clamp, so that the gas phase can pass through.

[0022] The upper outlet of the quenching chamber 9 is connected to the air extractor 2, and the air extractor 2 is connected to the outlet pipe of the screw air compressor 1, so that the air extractor 2 can be driven by the kinetic energy of the air to extract the gas in the quenching chamber 9 and the combustion chamber 8, and a negative pressure is established.

[0023] A remote pressure gauge 11 is arranged on the connecting pipeline between the upper outlet of the quenching chamber 9 and the air extractor 2, and an adjusting valve 3 is arranged on the connecting pipeline between the air extractor 2 and the outlet pipe of the screw air compressor 1.

[0024] The gas pipeline 4 is provided with a shut-off valve 12 and a gas adjusting valve 14, and the start-stop signal of the screw air compressor 1 is interlocked with the shut-off valve 12.

[0025] The start-stop signal of the screw air compressor 1 is interlocked with the shut-off valve 12, and when the screw air compressor 1 is stopped, the interlocked shut-off valve 12 is closed to prevent backfire.

[0026] A quenching chamber liquid level gauge 5 is arranged outside the quenching chamber 9 for observing the liquid level in the quenching chamber 9.

[0027] The bottom of the quenching chamber 9 is connected to the slag pool 7, and the slag pool 7 is connected to the upper part of the quenching chamber 9 by a preheating water pump 6.

[0028] In the first step, the liquid level of the slag pool 7 is filled to 60% with raw water, the preheating water pump 6 is started to fill the liquid level of the quenching chamber 9 of the gasification furnace to 20%; in the second step, the preheating burner 10 is installed, and the gas pipeline 4 is connected; in the third step, the 60m 3 The screw air compressor 1 is connected to the air extractor 2, and then the screw air compressor 1 is started, the adjusting valve 3 is gradually opened, the remote pressure gauge 11 of the gasification furnace is reduced to -2 to -0.5 KPa; in the fourth step, the preheating burner 10 is ignited, the opening degree of the gas adjusting valve 14 is adjusted to control the heating rate of the combustion chamber 8 of the gasification furnace, and the opening degree of the adjusting valve 3 is adjusted to control the negative pressure in the furnace and the stability of combustion according to the pressure displayed by the remote pressure gauge 11 of the gasification furnace and the length of the flame observed by the remote camera 15 transmitted to the computer display 16. When the screw air compressor 1 fails and stops, the gas shut-off valve 12 is triggered to close to prevent backfire.

Claims

1. A gasification furnace drying device, characterized in that: The gasifier includes a combustion chamber (8) and a quench chamber (9). The bottom of the combustion chamber (8) and the top of the quench chamber (9) are connected by a downcomer (17). The preheating burner (10) is inserted into the upper part of the combustion chamber (8). The preheating burner (10) is connected to the gas pipeline (4). A camera (15) with remote transmission function is placed in the observation hole of the preheating burner (10) to transmit the flame status of the preheating burner (10) to the computer display (16) in the central control room, so that the operator can observe the flame status of the preheating burner (10).

2. The gasifier drying apparatus according to claim 1, characterized in that: The upper outlet of the quench chamber (9) is connected to the ejector (2), and the ejector (2) is connected to the outlet pipe of the screw air compressor (1). The ejector (2) is driven by air kinetic energy to extract the gas in the quench chamber (9) and the combustion chamber (8) to establish a negative pressure.

3. The gasifier drying apparatus according to claim 2, characterized in that: A remote pressure gauge (11) is installed on the connecting pipe between the upper outlet of the quench chamber (9) and the ejector (2); a regulating valve (3) is installed on the connecting pipe between the ejector (2) and the outlet pipe of the screw air compressor (1).

4. The gasifier drying apparatus according to claim 1, characterized in that: The bottom conical structure of the combustion chamber (8) extends into the quench chamber (9) through a downcomer. The top of the downcomer is connected to the bottom of the combustion chamber (8) by a flange, and the lower part of the downcomer is connected to the bubble-breaking strip inside the quench chamber (9) by a clamp to achieve gas phase passage.

5. The gasifier drying apparatus according to claim 2, characterized in that: The gas pipeline (4) is equipped with a shut-off valve (12) and a gas regulating valve (14); the start and stop signals of the screw air compressor (1) are interlocked with the shut-off valve (12).

6. The gasifier drying apparatus according to claim 1, characterized in that: The start / stop signal of the screw air compressor (1) is interlocked with the shut-off valve (12). When the screw air compressor (1) trips, the interlock shut-off valve (12) closes to prevent backfire.

7. The gasifier drying apparatus according to claim 1, characterized in that: A quench chamber level gauge (5) is installed outside the cold chamber (9) to observe the liquid level inside the quench chamber (9).

8. The gasifier drying apparatus according to claim 1, characterized in that: The bottom of the quench chamber (9) is connected to the slag pool (7), and the slag pool (7) is connected to the top of the quench chamber (9) through the preheating water pump (6).

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