A device for spraying a waste concentrate into a furnace

Abstract

The utility model discloses a device for garbage concentrated liquid back -spraying hearth relates to garbage incineration power generation technical field. A device for garbage concentrated liquid back -spraying hearth, include: cold -blast pipe and insert in the cold -blast pipe and spray gun, spray gun includes the blast pipe, coaxial fixed blast pipe in the liquid feeding pipe, and fixed in the atomizing spray head of liquid feeding pipe and blast pipe head, the cold -blast pipe through -type fixed on the incinerator side wall, the pipe section of cold -blast pipe extension to the outside of incinerator is provided with first air inlet, the tail of blast pipe is the closed structure, and the pipe section of blast pipe is close to its tail and is provided with second air inlet, the tail of liquid feeding pipe extends to the outside of blast pipe, and the tail of liquid feeding pipe is provided with liquid inlet. The utility model discloses a device for garbage concentrated liquid back -spraying hearth, through the cooperation design of each structure, the concentrated liquid is smoothly sprayed into the stove and realizes atomization, makes the concentrated liquid after atomization fully burn in the incinerator.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration power generation technology, specifically to a device for re-spraying waste concentrate into the furnace. Background Technology

[0002] Waste-to-energy plants are generally equipped with waste storage facilities, primarily used for the fermentation, stacking, and storage of waste. When the waste accumulates to a certain amount, leachate is produced. This leachate is transported via a conveying system to specific treatment workshops within the plant for processing.

[0003] The leachate is treated and separated into two parts: clean water and concentrate. According to power plant requirements, the concentrate must be injected back into the incinerator for combustion. Currently, there is no suitable device capable of injecting the concentrate into the furnace and atomizing it to ensure complete combustion after injection.

[0004] Therefore, how to design a device for injecting waste concentrate back into the furnace, which can spray the concentrate into the furnace and atomize it, is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a device for re-spraying waste concentrate into the furnace, thereby solving the problems mentioned in the background section.

[0007] This utility model provides the following technical solution: a device for re-spraying waste concentrate into the furnace, comprising: a cold air pipe and a spray gun inserted into the cold air pipe;

[0008] The spray gun includes an air supply pipe, a liquid delivery pipe coaxially fixed within the air supply pipe, and...

[0009] Atomizing nozzles fixed to the heads of liquid delivery pipes and air delivery pipes;

[0010] The cold air duct is fixed to the side wall of the incinerator in a through manner; the first air inlet is provided on the section of the cold air duct that extends to the outside of the incinerator.

[0011] The tail end of the air supply duct is a closed structure, and a second air inlet is provided on the section of the air supply duct near its tail end.

[0012] The tail end of the liquid delivery pipe extends to the outside of the air delivery pipe; the tail end of the liquid delivery pipe is equipped with a liquid inlet.

[0013] Preferably, the first air inlet and the second air inlet are connected to the air compressor via pipelines; the liquid inlet is connected to the container storing the concentrate and the pump body via pipelines.

[0014] Preferably, the atomizing nozzle includes a connector, a nut, and a nozzle;

[0015] The connector has a tubular structure; a circular sealing plate is sealed inside the connector's tubular cavity; an inlet pipe is fixed through and fixed to the circular sealing plate.

[0016] The circular sealing plate has multiple holes arranged in a circle around the liquid inlet pipe; the connector has a first external thread on the outside.

[0017] The nozzle has a tubular structure; the nozzle head is enclosed and has multiple atomizing holes spaced apart on it; the nozzle tail is fixed with an annular limiting plate on its outer side.

[0018] The nozzle's tail rests on the connector; the nut passes through the nozzle and locks into the first external thread on the outside of the connector.

[0019] The head of the liquid delivery pipe is provided with an internal thread; the section of the liquid inlet pipe extending to the outside of the connector is provided with a second external thread.

[0020] The liquid delivery pipe head is locked to the second external thread of the liquid inlet pipe via an internal thread; the air delivery pipe head is inserted into the connector cavity and pressed against the circular sealing plate.

[0021] Preferably, it further includes a first drainage ring and a second drainage ring; the inner ring diameter of the second drainage ring is smaller than the inner ring diameter of the first drainage ring;

[0022] A first step is provided in the nozzle cavity; a second step is provided in the connector cavity; a first drainage ring and a second drainage ring are provided in the nozzle cavity and clamped between the first step and the second step.

[0023] Preferably, the materials for the cooling duct, air supply duct, and liquid supply duct are all stainless steel.

[0024] Preferably, the section of the cold air duct extending to the outside of the incinerator is provided with radially connected bolts; the air supply duct is inserted into the cold air duct; tightening the bolts can fix the air supply duct in the cold air duct.

[0025] The present invention provides a device for re-spraying waste concentrate into the furnace, which has the following beneficial effects: The present invention designs a device for re-spraying waste concentrate into the furnace. Through the coordinated design of various structures, the concentrate is smoothly sprayed into the furnace and atomized, so that the atomized concentrate is fully burned in the incinerator. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the connection between the atomizing nozzle and the liquid delivery pipe in this utility model;

[0028] Figure 3 This is a structural schematic diagram of the atomizing nozzle at angle one in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the atomizing nozzle at angle two in this utility model;

[0030] Figure 5 This is a schematic diagram of the exploded structure of the atomizing nozzle in this utility model. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] See Figures 1-5 .

[0033] To address the problems mentioned in the background section, this utility model provides a device for re-injecting waste concentrate into the furnace, thereby solving the aforementioned technical problems. The technical solution is as follows:

[0034] An apparatus for re-spraying waste concentrate into a furnace includes: a cold air duct 110 and a spray gun inserted into the cold air duct 110;

[0035] The spray gun includes an air supply pipe 120, a liquid delivery pipe 130 coaxially fixed in the air supply pipe 120, and an atomizing nozzle 200 fixed in the liquid delivery pipe 130 and the head of the air supply pipe 120.

[0036] The cold air duct 110 is fixed through the side wall of the incinerator; the first air inlet 111 is provided on the section of the cold air duct 110 extending to the outside of the incinerator.

[0037] The tail end of the air supply duct 120 is a closed structure, and a second air inlet 121 is provided on the section of the air supply duct 120 near its tail end.

[0038] The tail of the liquid delivery pipe 130 extends to the outside of the air delivery pipe 120; the tail of the liquid delivery pipe 130 is provided with a liquid inlet 131.

[0039] In this embodiment, the first air inlet 111 and the second air inlet 121 are respectively connected to the air compressor through pipelines; the liquid inlet 131 is connected to the container storing the concentrate and the pump body through pipelines.

[0040] In this embodiment, the atomizing nozzle 200 includes a connector 210, a nut 220, and a nozzle 230;

[0041] The connector 210 has a tubular structure; a circular sealing plate 213 is sealed inside the tube of the connector 210; an inlet pipe 211 is fixed through the circular sealing plate 213.

[0042] The circular sealing plate 213 has multiple holes 214 arranged in a circular pattern around the liquid inlet pipe 211; the connector 210 has a first external thread on its outer side.

[0043] The nozzle 230 has a tubular structure; the head of the nozzle 230 is closed and has multiple atomizing holes 231 spaced apart; the tail of the nozzle 230 is fixed with an annular limiting plate 232 on its outer side.

[0044] The tail of the nozzle 230 rests on the connector 210; the nut 220 passes through the nozzle 230 and is locked to the first external thread on the outside of the connector 210.

[0045] The head of the liquid delivery pipe 130 is provided with an internal thread; the section of the liquid inlet pipe 211 extending to the outside of the connector 210 is provided with a second external thread 212;

[0046] The head of the liquid delivery pipe 130 is threadedly locked to the second external thread 212 of the liquid inlet pipe 211 via an internal thread; the head of the air delivery pipe 120 is inserted into the cavity of the connector 210 and pressed against the circular sealing plate 213.

[0047] In this embodiment, a first drainage ring 240 and a second drainage ring 250 are also included; the inner ring diameter of the second drainage ring 250 is smaller than the inner ring diameter of the first drainage ring 240.

[0048] The nozzle 230 has a first step 233 in its cavity; the connector 210 has a second step 215 in its cavity; the first drainage ring 240 and the second drainage ring 250 are disposed in the nozzle 230 cavity and clamped between the first step 233 and the second step 215.

[0049] Figure 2 As shown, the core purpose of setting the first diversion ring 240 and the second diversion ring 250 is to optimize the mixing path of compressed air and concentrate, to divert and merge the compressed air and concentrate together, and to improve the atomization effect.

[0050] In this embodiment, the cold air duct 110, the air supply duct 120, and the liquid supply duct 130 are all made of stainless steel. Preferably, the outer diameter of the cold air duct 110 is 89 mm; the outer diameter of the air supply duct 120 is 57 mm; and the outer diameter of the liquid supply duct 130 is 89 mm.

[0051] In this embodiment, a radially connected bolt 140 is provided on the section of the cold air duct extending to the outside of the incinerator; the air supply duct 120 is inserted into the cold air duct 110; tightening the bolt 140 can fix the air supply duct 120 in the cold air duct 110.

[0052] The working method of the device for re-spraying waste concentrate into the furnace provided in this embodiment of the invention is as follows:

[0053] (1) Make a hole with a diameter of φ89 on the side wall of the existing incinerator; install a φ89 stainless steel sleeve (cold air duct 110) at the hole location.

[0054] (2) Make a stainless steel pipe φ57 (air supply pipe 120), install a stainless steel pipe φ25 (liquid supply pipe 130) inside the stainless steel pipe φ57, and install an atomizing nozzle 200 on the stainless steel pipe φ25; assemble into a spray gun.

[0055] (3) Compressed air is introduced into the air supply pipe 120; concentrated liquid is introduced into the liquid supply pipe 130; compressed air is introduced into the cold air pipe 110 (to cool and protect the air supply pipe 120 and the liquid supply pipe 130).

[0056] (4) Concentrate atomization: After being pressurized by the pump body, the concentrate enters the atomizing nozzle 200 through the liquid delivery pipe 130; compressed air enters the atomizing nozzle 200 through the air delivery pipe 120 and mixes with the concentrate. The turbulence and shear force generated by the difference in flow velocity between the gas and liquid phases break the liquid into droplets and inject them into the incinerator from the atomizing nozzle 200.

[0057] (5) When the device is not in use, the spray gun needs to be pulled out and the compressed air turned off.

[0058] The present invention provides a device for re-spraying waste concentrate into the furnace, which has the following beneficial effects: The present invention designs a device for re-spraying waste concentrate into the furnace, which solves the risks of erecting and dismantling scaffolding during furnace shutdown and maintenance, reduces construction costs, shortens maintenance period, and saves economic benefits.

[0059] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A device for re-injecting waste concentrate into a furnace, characterized in that, include: Cooling duct and spray gun inserted into the cooling duct; The spray gun includes an air supply pipe, a liquid delivery pipe coaxially fixed within the air supply pipe, and... Atomizing nozzles fixed to the heads of liquid delivery pipes and air delivery pipes; The cold air duct is fixed to the side wall of the incinerator in a through manner; the first air inlet is provided on the section of the cold air duct that extends to the outside of the incinerator. The tail end of the air supply duct is a closed structure, and a second air inlet is provided on the section of the air supply duct near its tail end. The tail end of the liquid delivery pipe extends to the outside of the air delivery pipe; the tail end of the liquid delivery pipe is equipped with a liquid inlet.

2. The apparatus for re-injecting waste concentrate into the furnace according to claim 1, characterized in that, The first and second air inlets are connected to the air compressor via pipelines; the liquid inlet is connected to the container storing the concentrate and the pump body via pipelines.

3. The apparatus for re-injecting waste concentrate into the furnace according to claim 1, characterized in that, The atomizing nozzle includes a connector, a nut, and a nozzle; The connector has a tubular structure; a circular sealing plate is sealed inside the connector's tubular cavity; an inlet pipe is fixed through and fixed to the circular sealing plate. The circular sealing plate has multiple holes arranged in a circle around the liquid inlet pipe; the connector has a first external thread on the outside. The nozzle has a tubular structure; the nozzle head is enclosed and has multiple atomizing holes spaced apart on it; the nozzle tail is fixed with an annular limiting plate on its outer side. The nozzle's tail rests on the connector; the nut passes through the nozzle and locks into the first external thread on the outside of the connector. The head of the liquid delivery pipe is provided with an internal thread; the section of the liquid inlet pipe extending to the outside of the connector is provided with a second external thread. The liquid delivery pipe head is locked to the second external thread of the liquid inlet pipe via an internal thread; the air delivery pipe head is inserted into the connector cavity and pressed against the circular sealing plate.

4. The apparatus for re-injecting waste concentrate into the furnace according to claim 3, characterized in that, It also includes a first drainage ring and a second drainage ring; the inner ring diameter of the second drainage ring is smaller than the inner ring diameter of the first drainage ring. A first step is provided in the nozzle cavity; a second step is provided in the connector cavity; a first drainage ring and a second drainage ring are provided in the nozzle cavity and clamped between the first step and the second step.

5. The apparatus for re-injecting waste concentrate into the furnace according to claim 1, characterized in that, The cooling duct, air supply duct, and liquid supply duct are all made of stainless steel.

6. The apparatus for re-injecting waste concentrate into the furnace according to claim 1, characterized in that, The section of the cold air duct extending to the outside of the incinerator is equipped with radially connected bolts; the air supply duct is inserted into the cold air duct; tightening the bolts can fix the air supply duct in the cold air duct.

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