Spiral ash conveying machine for garbage incinerator

Abstract

The utility model provides a spiral ash conveying machine for a garbage incinerator, which belongs to the technical field of water-cooling spiral ash conveying machines for second and third flues of a garbage power generation horizontal boiler, and comprises a discharging channel, an auger conveying pipe is communicated above the discharging channel, and a cinder valve is communicated above the auger conveying pipe. A dust discharging valve is arranged on the base, a manual gate valve is installed above the dust discharging valve, a shell is connected to the upper portion of the manual gate valve, a transverse plate is arranged on one side of the shell, and water cooling assemblies are arranged on the outer side of the shell and the transverse plate. The problems that in the using process of existing equipment, a shell makes direct contact with ash residues, the ash residues are subjected to heat absorption, water is evaporated after heat absorption, then a water tank becomes a small pressure container, generated steam blocks a cooling water inlet pipeline, the shell and a tank body deform, and then the equipment is damaged are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of garbage power generation horizontal boiler two and three flue water cooling spiral ash conveying machine, specifically relates to a spiral ash conveying machine for garbage incinerator. BACKGROUND

[0002] Garbage incineration treatment is one of the main methods of present city life garbage treatment, and it is predicted that by the end of 2020, the garbage incineration treatment facility processing capacity of China accounts for more than 50% of the harmless treatment amount of life garbage. Incineration technology has the advantages of stable treatment, obvious garbage reduction effect, waste heat utilization and small land occupation, and also solves the problems of complex garbage composition and difficult disposal.

[0003] The existing water-cooled spiral ash conveying machine is a professional equipment developed for high-temperature fly ash conveying of garbage incineration boiler vertical flue. The equipment is composed of a water-cooled shell, a cooling spiral shaft, an inlet and outlet, a rotary joint, a sealing device and a driving device. The shell is double-layer designed, the interlayer is full of cooling water, the cooling water enters at low position at one end and exits at high position at the other end, and flows through the whole shell.

[0004] In the use process, the shell directly contacts with the ash and absorbs heat, the water evaporates after absorbing heat, and then the water tank becomes a small pressure container, the generated steam blocks the cooling water inlet pipeline, causes the shell and the tank to deform, and then causes the equipment damage. SUMMARY

[0005] The utility model provides a spiral ash conveying machine for garbage incinerator, which aims to solve the problem of the existing equipment in the use process, the shell directly contacts with the ash and absorbs heat, the water evaporates after absorbing heat, and then the water tank becomes a small pressure container, the generated steam blocks the cooling water inlet pipeline, causes the shell and the tank to deform, and then causes the equipment damage.

[0006] The utility model embodiment provides a spiral ash conveying machine for garbage incinerator, which includes a discharge channel, the upper side of the discharge channel is connected with an auger conveying pipe, the upper side of the auger conveying pipe is connected with a dust discharging valve, the upper side of the dust discharging valve is provided with a manual gate valve, the upper side of the manual gate valve is connected with a shell, one side of the shell is provided with a horizontal plate, and the outer side of the shell and the horizontal plate are provided with a water cooling assembly.

[0007] Further, the shell is in a conical structure with a diameter gradually decreasing from top to bottom, and a feeding channel is formed in the middle of the shell.

[0008] Through the above technical scheme, the ash can leak through the conical feeding channel.

[0009] Further, the wall of the shell is hollow, and an elastic member is fixedly connected to the inner wall of the shell, and a cavity formed by the elastic member is filled with castable material.

[0010] By adopting the above technical scheme, the castable material expands after absorbing heat, and the elastic member provides expansion space for the expansion of the castable material, thereby avoiding damage to the overall structure caused by the expansion of the castable material after rigid connection, and greatly improving the practicability of the whole.

[0011] Further, the water cooling assembly comprises a cooling plate fixedly connected to the outer wall of the shell, the cooling plate is internally provided with a cooling cavity, the cooling cavity is fixedly connected with a baffle, the baffle divides the cooling cavity into a first cooling cavity and a second cooling cavity, the baffle is provided with a first air hole in the middle part, the first air hole communicates the first cooling cavity and the second cooling cavity, and the cooling plate is provided with a second air hole on the wall at one end of the first cooling cavity.

[0012] By adopting the above technical scheme, part of the cooling water absorbs heat and evaporates, and the evaporated cooling water can enter the first cooling cavity through the first air hole and be discharged to the outside through the second air hole, thereby avoiding the blockage of the input pipe by water vapor and the increase of the overall pressure, thereby causing damage to the equipment.

[0013] Further, the water pump is installed on the transverse plate, the input end of the water pump is communicated with the external water pipe, the output end of the water pump is communicated with the bottom of the second cooling cavity through an input pipe, and the upper end of the second cooling cavity on the other side of the input pipe is communicated with an output pipe.

[0014] By adopting the above technical scheme, the water pump inputs the cooling water from the outside to the second cooling cavity through the input pipe, thereby absorbing heat from the ash, and then outputs the cooling water that has absorbed heat to the outside through the output pipe.

[0015] Further, the height of the output pipe is lower than the height of the baffle.

[0016] By adopting the above technical scheme, the cooling water that has absorbed heat can be discharged in time, thereby avoiding the flow of the cooling water from the first air hole and the second air hole to the outside.

[0017] Further, a heat transfer layer is fixedly connected between the cooling plate and the outer wall of the shell.

[0018] By adopting the above technical scheme, after the ash enters the feeding channel formed in the middle part of the shell, the shell transmits the heat released by the ash to the cooling plate through the heat transfer layer, the cooling water in the cooling cavity absorbs the heat, thereby achieving the effect of cooling, and the heat transfer layer can greatly improve the heat transfer effect.

[0019] The utility model discloses an advantageous effect is that:

[0020] 1, the utility model discloses a setting, the casing has castable in the casing, replaces the original metal material, makes the whole high temperature corrosion effect better, has greater intensity, can bear greater weight and pressure, and avoided the damage that causes because internal pressure is too big.

[0021] 2, the utility model discloses the setting of elastic member, the expansion of castable after heat absorption, at this moment, the elastic member can provide expansion space for the expansion of castable, avoid the damage to the whole structure after rigid connection, castable expansion, greatly improve the practicality of whole.

[0022] 3, the utility model discloses the setting of water cooling assembly, the water pump imports the cooling water of outside through the input pipe to the second cooling cavity, and then carries out heat absorption to the ash residue, and then imports the cooling water that has absorbed heat from the output pipe to the outside, part of the cooling water that has absorbed heat evaporates, and then the evaporated cooling water can enter the first cooling cavity through the first air hole, and is discharged to the outside through the second air hole, avoids that water vapor blocks the input pipe, leads to that the whole pressure becomes big, thereby causes the equipment damage.

[0023] 4, the utility model discloses the setting of heat transfer layer, after the ash residue enters the feedway formed in the middle part of the casing, the casing will release the heat of ash residue to the cooling plate through the heat transfer layer, and the cooling water in the cooling cavity absorbs heat, and the effect of temperature reduction is achieved, and the heat transfer layer can greatly improve the effect of heat transfer.

[0024] The other features and advantages of the utility model will be set forth in the subsequent description, and, partially, become obvious from the description, or be understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structure that is specially pointed out in the description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings are used to provide further understanding of the utility model, and constitute a part of the description, are used to explain the utility model with the embodiment of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0026] Fig. 1 It is the ash residue transportation process structure schematic view of the utility model embodiment;

[0027] Fig. 2 It is the a place amplification structure schematic view of the utility model embodiment;

[0028] Label: 1, discharge channel; 2, auger conveying pipe; 3, unloading valve; 4, manual gate valve; 5, shell; 51, feed channel; 52, elastic member; 6, water cooling assembly; 61, cooling plate; 62, cooling cavity; 621, first cooling cavity; 622, second cooling cavity; 63, baffle; 631, first vent hole; 64, second vent hole; 65, water pump; 66, input pipe; 67, output pipe; 68, heat transfer layer; 7, cross plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the technical scheme of the utility model clearer, the technical scheme of the utility model embodiment will be described clearly and completely in the following with reference to the drawings of the utility model embodiment. The same reference signs in the drawings represent the same parts. It should be noted that the described embodiment is part of the embodiment of the utility model, not all embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0030] Referring to Figs. 1-2 , the utility model embodiment proposes a spiral ash conveying machine for garbage incinerator, including discharge channel 1, the top of discharge channel 1 is connected with auger conveying pipe 2, the top of auger conveying pipe 2 is connected with unloading valve 3, the top of unloading valve 3 is installed with manual gate valve 4, the top of manual gate valve 4 is connected with shell 5, shell 5 is conical structure that diameter gradually decreases from top to bottom, the middle part of shell 5 forms feed channel 51, and ash can leak from conical feed channel 51, the wall thickness of shell 5 is hollow, the inner wall surface of shell 5 is fixedly connected with elastic member 52, elastic member 52 uses the material that can be used in high-temperature environment, such as graphite, silicone rubber, polyimide (PI) and the like, the cavity formed by elastic member 52 is poured with castable, and the castable uses refractory aggregate that is resistant to high temperature and corrosion, the castable expands after absorbing heat, at this time, elastic member 52 can provide expansion space for the expansion of castable, avoid the damage to the overall structure caused by the expansion of castable after rigid connection, and greatly improve the practicability of the whole.

[0031] Referring to Figs. 1-2The side of the shell 5 is provided with a transverse plate 7, and the outer side of the shell 5 and the transverse plate 7 are provided with a water cooling assembly 6. The water cooling assembly 6 comprises a cooling plate 61 fixedly connected to the outer wall surface of the shell 5. The cooling plate 61 is internally provided with a cooling cavity 62. The cooling cavity 62 is fixedly connected with a baffle 63. The baffle 63 divides the cooling cavity 62 into a first cooling cavity 621 and a second cooling cavity 622. The baffle 63 is provided with a first air hole 631 in the middle part. The first air hole 631 communicates the first cooling cavity 621 and the second cooling cavity 622. The cooling plate 61 is provided with a second air hole 64 on the wall surface at one end of the first cooling cavity 621. The cooling plate 61 and the outer wall surface of the shell 5 are fixedly connected with a heat transfer layer 68. After the ash enters the feeding channel 51 formed in the middle part of the shell 5, the shell 5 releases the heat of the ash to the cooling plate 61 through the heat transfer layer 68. The cooling water in the cooling cavity 62 absorbs the heat, thereby achieving the effect of cooling. The heat transfer layer 68 can greatly improve the effect of heat transfer. The cooling water after absorbing part of the heat evaporates, and then the evaporated cooling water can pass through the first air hole 631 into the first cooling cavity 621 and be discharged to the outside through the second air hole 64, thereby avoiding the water vapor from blocking the input pipe 66, causing the overall pressure to become large, and causing the equipment to be damaged. The height of the output pipe 67 is lower than the height of the baffle 63, so that the cooling water after absorbing the heat can be discharged in time, thereby avoiding the cooling water from flowing to the outside from the first air hole 631 and the second air hole 64.

[0032] Referring to Figs. 1-2 The transverse plate 7 is provided with a water pump 65. The input end of the water pump 65 is communicated with the water pipe outside the shell 5. The output end of the water pump 65 is communicated with the bottom of the second cooling cavity 622 through the input pipe 66. The upper end of the second cooling cavity 622 on the other side of the input pipe 66 is communicated with the output pipe 67. The water pump 65 inputs the cooling water outside the shell 5 into the second cooling cavity 622 through the input pipe 66, thereby absorbing the heat of the ash, and then outputs the cooling water after absorbing the heat to the outside through the output pipe 67.

[0033] The embodiment is specific: in use, after the ash enters the feeding channel 51, the manual gate valve 4 and the ash unloading valve 3 will block the ash, at this time, the shell 5 cast by castable will bear a plurality of high-temperature ashes, at this time, the heat of the ashes will be transmitted through the shell 5 and transmitted to the cooling cavity 62 through the heat transfer layer 68, at this time, the water pump 65 will input the cooling water outside into the second cooling cavity 622, at this time, the cooling water will absorb the heat transmitted, the cooling water absorbing a large amount of heat will evaporate, and then the water vapor can flow to the outside through the first vent hole 631 and the second vent hole 64, so as to avoid that the internal pressure is too large, and the cooling water not becoming water vapor will be output to the outside through the output pipe 67, at the same time, the castable in the shell 5 will expand when transmitting the heat, at this time, the elastic member 52 can provide expansion space for the expansion of the castable, so as to avoid that the castable expands and damages the overall structure after being hard connected, and greatly improve the practicability of the whole.

[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A screw ash conveyor for a waste incinerator, comprising a discharge channel (1), characterized in that, The upper portion of the discharge channel (1) is communicated with an auger conveying pipe (2), the upper portion of the auger conveying pipe (2) is communicated with a dust discharging valve (3), the upper portion of the dust discharging valve (3) is installed with a manual flashboard valve (4), the upper portion of the manual flashboard valve (4) is connected with a shell (5), one side of the shell (5) is provided with a transverse plate (7), the outer side of the shell (5) and the transverse plate (7) are provided with a water cooling assembly (6).

2. A screw ash conveyor for a waste incinerator according to claim 1, characterized in that: The shell (5) is a conical structure with a diameter gradually decreasing from top to bottom, and a feeding channel (51) is formed in the middle portion of the shell (5).

3. A screw ash conveyor for a waste incinerator according to claim 2, characterized in that: The wall thickness of the shell (5) is hollow, an elastic member (52) is fixedly connected to the inner wall surface of the shell (5), and a cavity formed by the elastic member (52) is filled with castable material.

4. A screw ash conveyor for a waste incinerator according to claim 1, characterized in that: The water cooling assembly (6) comprises a cooling plate (61) fixedly connected to the outer wall surface of the shell (5), a cooling cavity (62) is formed in the cooling plate (61), a baffle (63) is fixedly connected in the cooling cavity (62), the cooling cavity (62) is divided into a first cooling cavity (621) and a second cooling cavity (622) by the baffle (63), a first air hole (631) is formed in the middle portion of the baffle (63), the first air hole (631) communicates the first cooling cavity (621) and the second cooling cavity (622), and a second air hole (64) is formed in the wall surface of one end of the cooling plate (61).

5. A screw ash conveyor for a waste incinerator according to claim 4, characterized in that: A water pump (65) is installed on the transverse plate (7), the input end of the water pump (65) is communicated with an external water pipe, the output end of the water pump (65) is communicated with the bottom of the second cooling cavity (622) through an input pipe (66), and the upper end of the other side of the second cooling cavity (622) is communicated with an output pipe (67).

6. A screw ash conveyor for a waste incinerator according to claim 5, characterized in that: The height of the output pipe (67) is lower than that of the baffle (63).

7. A screw ash conveyor for a waste incinerator according to claim 4, characterized in that: A heat transfer layer (68) is fixedly connected between the cooling plate (61) and the outer wall surface of the shell (5).

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