Siphon type hydraulic ash conveying structure of waste heat boiler

Abstract

The utility model relates to a gas making furnace matching device, in particular to a siphoning type hydraulic ash conveying structure of a waste heat boiler. In order to solve the problems that according to a traditional method for treating dust particles at the bottom of a waste heat boiler, the labor intensity of workers is large, the pollution to the field environment is large, and the boiler needs to be shut down for treatment, the novel siphoning type hydraulic ash conveying structure of the waste heat boiler is provided and comprises the waste heat boiler, a water adding pipe and an inverted-U-shaped siphon pipe, and the waste heat boiler is further provided with a water adding opening. The water adding pipe is communicated with the water adding opening, the water adding opening is located between the coal gas outlet and the bottom of the waste heat boiler, one port of the siphon is communicated with the ash discharging pipe opening, and the top of the siphon is communicated with an exhaust pipe opening with an upward opening. The dust particles at the bottom of the waste heat boiler are cleaned through the structure, manual cleaning is not needed, the site environment cannot be polluted, shutdown is not needed, safe operation of the whole production system is guaranteed, and production efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to a gasification furnace supporting device, in particular to the technical field of waste heat boilers supporting the gasification furnace, specifically a siphon type hydraulic ash conveying structure of the waste heat boiler. Background Art

[0002] Gasification furnaces are generally equipped with waste heat boilers, which are equipped with gas inlet, gas outlet, soft water inlet and soft water outlet. The bottom of the waste heat boiler is arranged into an inclined surface and is integrally connected with an ash discharge pipe opening arranged in the same direction as the inclination of the bottom of the waste heat boiler. The ash discharge pipe opening is equipped with an ash discharge valve. When in use, the water gas with dust particles generated by the gasification furnace is transported from the gas inlet to the waste heat boiler for heat exchange and cooling, and then discharged from the gas outlet. At the same time, the dust particles in the water gas fall to the bottom of the waste heat boiler due to gravity. After long-term operation, when a large number of dust particles accumulate at the bottom of the waste heat boiler, the ash discharge valve needs to be opened and then the ash removal needs to be carried out manually. This treatment method is not only labor-intensive and pollutes the on-site environment, but also requires the furnace to be shut down for treatment, affecting production efficiency. Summary of the Invention

[0003] In order to solve the problems of high labor intensity, great pollution to the on-site environment and the need to shut down the boiler for treatment in the traditional method of treating dust particles at the bottom of the waste heat boiler, the utility model provides a new siphon-type hydraulic ash conveying structure for the waste heat boiler.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A siphon-type hydraulic ash conveying structure for a waste heat boiler comprises a waste heat boiler, a water adding pipe, and an inverted U-shaped siphon pipe. The waste heat boiler is provided with a gas inlet, a gas outlet, a soft water inlet, and a soft water outlet. The bottom of the waste heat boiler is arranged into an inclined surface and is integrally connected with an ash discharge pipe opening arranged in the same inclination direction as the bottom of the waste heat boiler. One end of the ash discharge pipe opening away from the waste heat boiler is open and closed. The waste heat boiler is also provided with a water adding pipe, and the water adding pipe is connected to the water adding pipe. The arrangement height of the water adding pipe is located between the gas outlet and the bottom of the waste heat boiler. One end of the siphon pipe is connected to the ash discharge pipe opening, and the top of the siphon pipe is connected with an exhaust pipe opening with its opening facing upward.

[0006] Instructions for use: Before the waste heat boiler starts operating, water must be added to the bottom of the waste heat boiler through the water inlet pipe, and the gas in the top of the siphon tube is discharged from the exhaust pipe until water overflows from the other end of the siphon tube, completing the first siphon. Then start the waste heat boiler, and water gas with dust particles enters from the gas inlet of the waste heat boiler. The water added through the water pipe ensures that the water gas does not enter the siphon tube. The siphon system continuously drains water, and the accumulated dust is discharged along with the water, avoiding shutdown for ash discharge treatment, and ensuring stable and normal operation of the system.

[0007] Furthermore, the structure also includes a drainage main, and the other end of the siphon tube is connected to the drainage main. The drainage main is an essential pipe for the gas production system and is the main drainage pipe for all wastewater. Therefore, connecting the other end of the siphon tube to the drainage main facilitates the treatment of wastewater containing dust particles.

[0008] Furthermore, a water filling valve is provided on the water filling pipe to facilitate water addition or water shut-off during maintenance.

[0009] Furthermore, the structure also includes a water purification device for filtering wastewater. The main drainage pipe is connected to the water inlet of the water purification device, and the water outlet of the water purification device is connected to the water supply pipe to facilitate water circulation.

[0010] Furthermore, the diameter of the water supply pipe is smaller than the diameter of the siphon pipe to avoid water overflow.

[0011] Furthermore, the diameter of the main drainage pipe is larger than the diameter of the siphon pipe, which facilitates drainage.

[0012] Furthermore, the ash discharge pipe mouth is equipped with an ash discharge valve, retaining the original structure of the waste heat boiler unchanged. The ash discharge pipe mouth can be closed at the end away from the waste heat boiler by simply closing the ash discharge valve during use.

[0013] Furthermore, the water supply pipe is at an elevation of 1.5m and the highest point of the siphon pipe is at an elevation of 3.8m.

[0014] Furthermore, the nominal diameter of the water supply pipe is 40 mm, the nominal diameter of the siphon pipe is 200 mm, and the nominal diameter of the main drainage pipe is 500 mm.

[0015] The beneficial effects of the present invention are as follows: the structure of the present invention is used to clean the dust particles at the bottom of the waste heat boiler without manual cleaning, without polluting the on-site environment, and without shutting down the machine, thereby ensuring the safe operation of the entire production system and further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1-gas inlet, 2-gas outlet, 3-soft water inlet, 4-soft water outlet, 5-water supply pipe, 6-siphon pipe, 7-ash discharge pipe outlet, 8-exhaust pipe outlet, 9-ash discharge valve, 10-water supply gate valve, 11-drainage main pipe. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0021] In the description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms based on specific circumstances.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, a siphon-type hydraulic ash conveying structure for a waste heat boiler includes a waste heat boiler, a water adding pipe 5, and an inverted U-shaped siphon pipe 6. The waste heat boiler is equipped with a gas inlet 1, a gas outlet 2, a soft water inlet 3, and a soft water outlet 4. The bottom of the waste heat boiler is arranged into an inclined surface and is integrally connected with an ash discharge pipe port 7 arranged in the same inclination direction as the bottom of the waste heat boiler. The end of the ash discharge pipe port 7 away from the waste heat boiler is open and closed. The waste heat boiler is also equipped with a water adding port, and the water adding pipe 5 is connected to the water adding port. The arrangement height of the water adding port is located between the gas outlet 2 and the bottom of the waste heat boiler. One end of the siphon pipe 6 is connected to the ash discharge pipe port 7, and the top of the siphon pipe 6 is connected with an exhaust pipe port 8 with its opening arranged upward.

[0025] Instructions for use: Before the waste heat boiler starts operating, water must be added to the bottom of the waste heat boiler through the water inlet pipe, and the gas in the top of the siphon pipe 6 is discharged from the exhaust pipe port 8 until water overflows from the other end of the siphon pipe 6, completing the first siphon. Then start the waste heat boiler, and water gas with dust particles enters from the gas inlet 1 of the waste heat boiler. The water added through the water pipe 5 ensures that the water gas does not enter the siphon pipe 6. The siphon system continuously drains water, and the accumulated dust is discharged along with the water, avoiding shutdown for ash discharge treatment, and ensuring stable and normal operation of the system.

[0026] During specific implementation, the structure also includes a drainage main pipe 11, and the other port of the siphon tube 6 is connected to the drainage main pipe 11. The drainage main pipe 11 is an essential pipe for the gas production system and is the main drainage pipe for all wastewater. Therefore, the other port of the siphon tube 6 is connected to the drainage main pipe 11, which facilitates the treatment of wastewater containing dust particles.

[0027] In specific implementation, a water adding valve 10 is provided on the water adding pipe 5 to facilitate water addition or water shut-off during maintenance.

[0028] In practice, the structure also includes a water purification device for filtering wastewater. A main drainage pipe 11 is connected to the water inlet of the water purification device, and the water outlet of the water purification device is connected to the water supply pipe 5, facilitating water circulation. In practice, an ash discharge valve 9 is installed on the ash discharge pipe opening 7, retaining the original structure of the waste heat boiler. During use, the ash discharge pipe opening 7, remote from the waste heat boiler, is sealed by simply closing the ash discharge valve 9.

[0029] In this embodiment, the diameter of the water supply pipe 5 is smaller than that of the siphon pipe 6 to avoid overflow. The diameter of the drainage main pipe 11 is larger than that of the siphon pipe 6 to facilitate drainage.

[0030] In specific implementation, the water supply pipe 5 is at an elevation of 1.5m, the highest point of the siphon pipe 6 is at an elevation of 3.8m, the nominal diameter of the water supply pipe 5 is 40mm, the nominal diameter of the siphon pipe 6 is 200mm, and the nominal diameter of the drainage main 11 is 500mm.

[0031] The above description is only a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. A siphon-type hydraulic ash conveying structure for a waste heat boiler, comprising a waste heat boiler, wherein the waste heat boiler is provided with a gas inlet (1), a gas outlet (2), a soft water inlet (3), and a soft water outlet (4); the bottom of the waste heat boiler is arranged in an inclined surface and is integrally connected with an ash discharge pipe opening (7) arranged in the same direction as the inclination of the bottom of the waste heat boiler, characterized in that: The structure further comprises a water supply pipe (5), an inverted U-shaped siphon pipe (6), an end of the ash discharge pipe opening (7) away from the waste heat boiler is open and closed, the waste heat boiler is also provided with a water supply port, the water supply pipe (5) is connected to the water supply port, the arrangement height of the water supply port is located between the gas outlet (2) and the bottom of the waste heat boiler, one end of the siphon pipe (6) is connected to the ash discharge pipe opening (7), and the top of the siphon pipe (6) is connected to an exhaust pipe opening (8) with its opening arranged upward.

2. The siphon type hydraulic ash conveying structure of the waste heat boiler according to claim 1 is characterized in that: The structure further comprises a drainage main pipe (11), and the other end of the siphon pipe (6) is connected to the drainage main pipe (11).

3. The siphon type hydraulic ash conveying structure of the waste heat boiler according to claim 2 is characterized in that: A water supply valve (10) is provided on the water supply pipe (5).

4. The siphon type hydraulic ash conveying structure for waste heat boiler according to claim 3 is characterized in that: The structure also includes a water purification device for filtering waste water, the main drainage pipe (11) is connected to the water inlet of the water purification device, and the water outlet of the water purification device is connected to the water supply pipe (5).

5. The siphon type hydraulic ash conveying structure of the waste heat boiler according to claim 4 is characterized in that: The diameter of the water supply pipe (5) is smaller than the diameter of the siphon pipe (6).

6. The siphon type hydraulic ash conveying structure for waste heat boiler according to claim 5, characterized in that: The diameter of the drainage main (11) is greater than the diameter of the siphon (6).

7. The siphon type hydraulic ash conveying structure for waste heat boiler according to claim 6, characterized in that: An ash discharge valve (9) is provided on the ash discharge pipe port (7).

8. The siphon-type hydraulic ash conveying structure for a waste heat boiler according to claim 7, characterized in that: The water supply pipe (5) is at an elevation of 1.5 m, and the highest point of the siphon pipe (6) is at an elevation of 3.8 m.

9. The siphon-type hydraulic ash conveying structure for a waste heat boiler according to claim 8, characterized in that: The nominal diameter of the water supply pipe (5) is 40 mm, the nominal diameter of the siphon pipe (6) is 200 mm, and the nominal diameter of the drainage main pipe (11) is 500 mm.

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