Incineration wet ash discharge device

Abstract

The utility model relates to the field of garbage treatment equipment, in particular to an incineration wet ash discharge device which comprises an ash discharge spraying assembly, a stirring and spraying assembly, a first screw conveyor, a second screw conveyor and a residue collecting pool. The ash discharging and spraying assembly, the first screw conveyor, the stirring and wetting assembly, the second screw conveyor and the residual material collecting pool are connected in sequence. According to the ash discharging and spraying device, the spraying assembly of the ash discharging and spraying assembly can be used for carrying out spraying and dust falling on residual ash discharged by the incinerator in the ash discharging pipe and carrying out primary wetting, so that dust flying during ash discharging of the incinerator can be inhibited; materials entering the material receiving barrel are stirred and sprayed through the stirring and spraying assembly, so that the materials are fully wetted and form small blocks or particles, no dust or waste water is generated in the process that the materials are fed into the residual material collecting pool to be collected in a centralized mode, and therefore dust can be restrained, resources and cost can be saved, and the environment is protected. And the environmental benefit and the economic benefit of waste incineration treatment can be improved.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment equipment, specifically to a wet ash removal device for incineration. Background Technology

[0002] After waste is incinerated in an incinerator, a large amount of residual ash and residue is produced. Traditional ash removal methods mostly involve direct dry discharge, which generates a large amount of dust that flies around and causes secondary pollution to the surrounding environment. To suppress dust, some people insert the residual ash discharge pipe directly into a pool containing a large amount of liquid water, dissolving the ash into a slurry solution for centralized sedimentation and collection. Although this wet method can suppress dust, it consumes a large amount of liquid water, and the sedimentation or filtration of the slurry solution generates a large amount of wastewater, which requires secondary treatment, wasting resources and increasing treatment costs. In view of this, it is necessary to design a wet ash removal device for incineration. How to suppress dust while saving resources and costs during ash removal and collection, thereby improving the environmental and economic benefits of waste incineration, is the problem to be solved in this case. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model discloses a wet ash removal device for incineration, including an ash removal spray assembly, a stirring and wetting assembly, a first screw conveyor, a second screw conveyor, and a residual material collection tank. The ash removal spray assembly is equipped with an ash removal pipe and a spray assembly, and is placed below the incinerator and connected between the ash removal port of the incinerator and the feed port of the first screw conveyor. The stirring and wetting assembly is equipped with a receiving tank, a stirring assembly, and a spraying assembly, and is connected between the discharge port of the first screw conveyor and the feed port of the second screw conveyor. This utility model's wet ash removal device for incineration utilizes the spray assembly of the ash removal spray component to spray and initially wet the residual ash discharged from the incinerator within the ash removal pipe, thereby suppressing dust emissions during incineration ash removal. The agitating spray component stirs and sprays the material entering the receiving hopper, fully wetting it and forming small clumps or granules. This ensures that no dust or wastewater is generated during the centralized collection process in the residual material collection pool, thus suppressing dust, saving resources and costs, and improving the environmental and economic benefits of waste incineration.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A wet ash removal device for incineration is disclosed. This device is used for wet collection and discharge of residual ash generated after waste is incinerated in an incinerator. It includes a first screw conveyor, a second screw conveyor, and a residual material collection tank. The device is characterized by further including an ash removal spray assembly and a stirring spray assembly. The ash removal spray assembly, the first screw conveyor, the stirring spray assembly, the second screw conveyor, and the residual material collection tank are connected sequentially from top to bottom. The ash removal spray assembly is equipped with a residual ash discharge pipe and a spray component placed inside the discharge pipe. The ash removal spray assembly is positioned below the incinerator, and its discharge pipe is connected to the incinerator. Between the ash discharge port and the feed inlet of the first screw conveyor, the residual ash discharged from the incinerator can be sprayed and dust-suppressed by the ash discharge spray assembly before falling into the first screw conveyor. The stirring and spraying assembly is equipped with a material receiving container and stirring and spraying components placed inside the receiving container. The receiving container of the stirring and spraying assembly is connected between the discharge port of the first screw conveyor and the feed inlet of the second screw conveyor. The material discharged from the first screw conveyor can be stirred, pushed, sprayed and moistened by the stirring and spraying assembly and then sent into the second screw conveyor and sent into the residual material collection pool for centralized collection.

[0006] The ash discharge spray assembly includes an ash discharge pipe and a spray assembly. The ash discharge pipe is a circular hollow pipe, and the spray assembly is fixed to the inner wall of the upper part of the ash discharge pipe.

[0007] The spray assembly includes an annular water pipe and spray nozzles. The annular water pipe is a circular water pipe with its two ends connected to each other. It has an inlet in the middle that is connected to an external high-pressure water source. The spray nozzles are a number of pieces, which are evenly distributed and connected to the bottom of the annular water pipe. The mouth of the spray nozzles is angled downward and faces the center of the middle part of the ash discharge pipe.

[0008] The agitation and spraying assembly includes a receiving tank, a tank cover, an agitation assembly, and a spraying assembly. The tank cover is detachably connected to the upper opening of the receiving tank. The agitation assembly is horizontally positioned in the middle of the receiving tank. The spraying assembly is positioned above the receiving tank and fixed to the back of the tank cover.

[0009] The receiving bucket is a barrel-shaped body with a square opening and a semi-circular bottom, and a discharge port at one end of the bottom. The discharge port is conical and equipped with a valve. The lid has a feed inlet, which is far away from the discharge port on the receiving bucket.

[0010] The agitator assembly includes a mandrel and an agitator. The mandrel is an elongated round shaft. The agitator includes a shaft and blades fixed to the suspended end of the shaft. The top of the blades is semi-circular and inclined. The semi-circular shape of the blades matches the semi-circular shape of the bottom of the receiving hopper. When the blades rotate, their tops can touch the bottom of the receiving hopper. There are several agitator blades. These agitator blades are arranged in a spiral pattern along the outer surface of the mandrel and fixed around the mandrel in a radiating pattern. When the mandrel rotates, it can drive the several agitator blades to rotate simultaneously to agitate the material and push the material towards the discharge port of the receiving hopper.

[0011] The agitator assembly also includes a bearing housing and a motor. The bearing housing consists of two pieces, which are respectively connected to both ends of the mandrel for the mandrel to rotate and connect to the receiving bucket. The output shaft of the motor is connected to one end of the mandrel, and the motor is fixed to the receiving bucket.

[0012] The spray assembly includes a serpentine water pipe and spray nozzles. The serpentine water pipe is a snake-shaped water pipe with both ends sealed. The serpentine water pipe has an inlet that connects to an external water supply network. The spray nozzles are a plurality of pieces, which are evenly distributed and connected to the lower part of the serpentine water pipe with the mouth of the spray nozzles facing downward.

[0013] As described above, the advantages of the wet ash removal device for incineration provided by this utility model are as follows: An ash removal spray assembly capable of spraying water mist is connected between the ash discharge port of the incinerator and the feed port of the first screw conveyor; a stirring spray assembly capable of agitating material and spraying water is connected between the discharge port of the first screw conveyor and the feed port of the second screw conveyor. The spray components of the ash removal spray assembly can spray and initially wet the residual ash discharged from the incinerator within the ash discharge pipe, thus suppressing dust emissions during ash removal. The stirring spray assembly agitates and sprays the material entering the receiving hopper, fully wetting the material and forming small clumps or granules. This ensures that no dust or wastewater is generated during the centralized collection process in the residual material collection pool, thereby suppressing dust, saving resources and costs, and improving the environmental and economic benefits of waste incineration. This utility model has a reasonable design, simple structure, low cost, and is easy to promote. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a wet ash removal device for incineration according to the present invention;

[0015] Figure 2 This is an enlarged schematic diagram of the ash removal spray assembly;

[0016] Figure 3 This is an enlarged schematic diagram of the spray assembly;

[0017] Figure 4 for Figure 2Enlarged diagram of part A in the diagram;

[0018] Figure 5 An enlarged schematic diagram of the agitation spray assembly;

[0019] Figure 6 for Figure 5 BB enlarged diagram

[0020] Figure 7 This is an enlarged schematic diagram of the agitator assembly;

[0021] Figure 8 for Figure 5 A magnified diagram along line C.

[0022] Figure label:

[0023] 1 Ash discharge spray assembly; 11 Ash discharge pipe; 12 Spray assembly; 121 Annular water pipe; 122 Spray nozzle; 2 Agitating spray assembly; 21 Receiving bucket; 22 Bucket cover; 23 Agitating assembly; 231 Mandrel; 232 Agitator; 233 Bearing seat; 234 Motor; 24 Spray assembly; 241 Serpentine water pipe; 242 Spray nozzle; 3 First screw conveyor; 4 Second screw conveyor; 5 Residual material collection pool; 900 Incinerator. Detailed Implementation

[0024] The present invention will be further described below through specific embodiments.

[0025] like Figure 1 As shown, this utility model discloses a wet ash removal device for incineration. This device is used for wet collection and discharge of residual ash generated after waste is incinerated in an incinerator 900. It includes an ash removal spray assembly 1, a stirring spray assembly 2, a first screw conveyor 3, a second screw conveyor 4, and a residual material collection tank 5. The ash removal spray assembly 1, the first screw conveyor 3, the stirring spray assembly 2, the second screw conveyor 4, and the residual material collection tank 5 are connected sequentially from top to bottom. The ash removal spray assembly 1 is equipped with a residual ash discharge pipe and a spray component placed inside the discharge pipe. The ash removal spray assembly 1 is located below the incinerator 900, and its discharge pipe is connected to the incinerator. Between the ash discharge port of furnace 900 and the feed port of the first screw conveyor 3, the residual ash discharged from the incinerator 900 can be sprayed and dust-suppressed by the ash discharge spray assembly 1 and then fall into the first screw conveyor 3. The stirring and spraying assembly 2 is equipped with a material receiving container and stirring and spraying components placed in the receiving container. The receiving container of the stirring and spraying assembly 2 is connected between the discharge port of the first screw conveyor 3 and the feed port of the second screw conveyor 4. The material discharged from the first screw conveyor 3 can be stirred, pushed and sprayed with moisture by the stirring and spraying assembly 2 and then sent into the second screw conveyor 4 and sent into the residual material collection pool 5 for centralized collection.

[0026] like Figures 1 to 4 As shown, the ash discharge spray assembly 1 of this utility model includes an ash discharge pipe 11 and a spray assembly 12. The ash discharge pipe 11 is a circular hollow pipe, and the spray assembly 12 is fixed to the inner wall of the upper part of the ash discharge pipe 11. The spray assembly 12 includes an annular water pipe 121 and spray nozzles 122. The annular water pipe 121 is a circular water pipe with its two ends connected to each other, and has an inlet in the middle that is connected to an external high-pressure water source. There are several spray nozzles 122, which are evenly distributed and connected to the lower part of the annular water pipe 121. The openings of the spray nozzles 122 are obliquely downward and all face the center of the middle part of the ash discharge pipe 11.

[0027] like Figure 1 , Figures 5 to 8 As shown, the agitation and spraying assembly 2 of this utility model includes a receiving tank 21, a tank cover 22, an agitation assembly 23, and a spraying assembly 24. The tank cover 22 is detachably connected to the upper opening of the receiving tank 21. The agitation assembly 23 is horizontally positioned in the middle of the receiving tank 21. The spraying assembly 24 is positioned above the receiving tank 21 and fixed to the back of the tank cover 22. The receiving tank 21 is a barrel-shaped body with a square opening and a semi-circular bottom, and a discharge port at one end of the bottom. The discharge port is conical and equipped with a valve. The tank cover 22 has a feed inlet, which is located away from the discharge port on the receiving tank 21. The agitator assembly 23 includes a spindle 231, an agitator 232, a bearing housing 233, and a motor 234. The spindle 231 is an elongated round shaft. The agitator 232 includes a shaft and blades fixed to the suspended end of the shaft. The top of the blades is semi-circular and inclined. The semi-circular shape of the blades matches the semi-circular shape of the bottom of the receiving hopper 21. When the blades rotate, their tops can touch the bottom of the receiving hopper 21. Several agitator 232s are provided. These agitator 232s are spirally arranged along the outer surface of the spindle 231 and fixed around the spindle 231 in a radiating pattern. When the spindle 231 rotates, it can drive the several agitator 232s to rotate simultaneously to agitate the material and push the material towards the discharge port of the receiving hopper 21. The bearing housing 233 consists of two pieces, each connected to one end of the spindle 231 for the spindle 231 to rotate on the receiving bucket 21. The output shaft of the motor 234 is connected to one end of the spindle 231, and the motor 234 is fixedly connected to the receiving bucket 21. The spray assembly 24 includes a serpentine water pipe 241 and spray nozzles 242. The serpentine water pipe 241 is a snake-shaped water pipe with both ends sealed. The serpentine water pipe 241 has an inlet that connects to an external water supply network. The spray nozzles 242 consist of several pieces, which are evenly distributed and connected below the serpentine water pipe 241, with the openings of the spray nozzles 242 facing downwards.

[0028] The operating method of this wet ash removal device for incineration is as follows:

[0029] When the incinerator 900 needs to discharge ash, the first screw conveyor 3, the second screw conveyor 4, and the stirring assembly 23 of the stirring and spraying component 2 can be started first, and the spraying assembly 12 and the spraying assembly 24 can be turned on. Then, the valve on the ash outlet of the incinerator 900 can be opened to let the residual ash fall into the ash discharge pipe 11 of the ash discharge spraying assembly 1. At this time, the spraying assembly 12 can spray and wet the residual ash entering the ash discharge pipe 11. The wetted material is sent from the first screw conveyor 3 through the feed port on the barrel cover 22 of the stirring and spraying assembly 2 into the receiving barrel 21. At this time, the spraying assembly 24 can spray the material and the stirring assembly 23 can stir the material at the same time, so that the material is fully wetted and forms small lumps or granules. At the same time, the stirring paddle 232 pushes the material towards the discharge port of the receiving barrel 21 and the second screw conveyor 4 sends the material into the residual material collection pool 5 for centralized collection. The collected residual material can be used to make fertilizer or landfill.

[0030] This utility model discloses a wet ash removal device for incineration. An ash removal spray assembly 1, capable of spraying water mist, is connected between the ash discharge port of the incinerator 900 and the feed inlet of the first screw conveyor 3. An agitating spray assembly 2, capable of agitating material and spraying water, is connected between the discharge port of the first screw conveyor 3 and the feed inlet of the second screw conveyor 4. The spray component 12 of the ash removal spray assembly 1 sprays and initially wets the residual ash discharged from the incinerator 900 within the ash discharge pipe 11, thus suppressing dust emissions during ash discharge from the incinerator 900. The agitating spray assembly 2 agitates and sprays the material entering the receiving hopper 21, fully wetting the material and forming small clumps or granules. This ensures that no dust or wastewater is generated during the centralized collection process in the residual material collection pool 5, thereby suppressing dust, saving resources and costs, and improving the environmental and economic benefits of waste incineration.

[0031] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be considered as an infringement of the protection scope of the present utility model.

Claims

1. A wet ash removal device for incineration, the device being used for wet collection and discharge of residual ash generated after waste is incinerated in an incinerator (900), comprising a first screw conveyor (3), a second screw conveyor (4), and a residual material collection pool (5), characterized in that: It also includes an ash discharge spray assembly (1) and an agitating spray assembly (2). The ash discharge spray assembly (1), the first screw conveyor (3), the agitating spray assembly (2), the second screw conveyor (4), and the residual material collection tank (5) are connected in sequence. The ash discharge spray assembly (1) is provided with a residual ash discharge pipe and a spray component placed inside the discharge pipe. The ash discharge spray assembly (1) is placed below the incinerator (900) and connected between the ash discharge port of the incinerator (900) and the feed port of the first screw conveyor (3). The residual ash discharged from the incinerator (900) can be sprayed by the ash discharge spray assembly. After the mist component (1) sprays and reduces dust, it falls into the first screw conveyor (3). The agitating spray component (2) is equipped with a material receiving container and agitating and spraying components placed in the receiving container. The agitating spray component (2) is connected between the discharge port of the first screw conveyor (3) and the inlet of the second screw conveyor (4). The material discharged from the first screw conveyor (3) can be agitated, pushed and sprayed by the agitating spray component (2) and then sent into the second screw conveyor (4) and sent into the residual material collection pool (5) for centralized collection.

2. The wet ash removal device for incineration according to claim 1, characterized in that: The ash discharge spray assembly (1) includes an ash discharge pipe (11) and a spray assembly (12). The ash discharge pipe (11) is a circular hollow pipe, and the spray assembly (12) is fixed to the inner wall of the upper part of the ash discharge pipe (11).

3. The wet ash removal device for incineration according to claim 2, characterized in that: The spray assembly (12) includes an annular water pipe (121) and spray nozzles (122). The annular water pipe (121) is a circular water pipe with its two ends connected to each other. It has an inlet in the middle that is connected to an external high-pressure water source. There are several spray nozzles (122), which are distributed and connected below the annular water pipe (121). The mouth of the spray nozzles (122) is obliquely downward and faces the center of the middle part of the ash discharge pipe (11).

4. The wet ash removal device for incineration according to claim 1, characterized in that: The stirring and spraying assembly (2) includes a receiving tank (21), a tank cover (22), a stirring assembly (23), and a spraying assembly (24). The tank cover (22) covers the upper opening of the receiving tank (21), the stirring assembly (23) is placed horizontally in the middle of the receiving tank (21), and the spraying assembly (24) is placed above the receiving tank (21) and fixed to the back of the tank cover (22).

5. The wet ash removal device for incineration according to claim 4, characterized in that: The receiving bucket (21) is a bucket-shaped body with a square opening and a semi-circular bottom, and a discharge port at one end of the bottom. The bucket cover (22) has a feed inlet and the feed inlet on the bucket cover (22) is far away from the discharge port on the receiving bucket (21).

6. The wet ash removal device for incineration according to claim 5, characterized in that: The stirring assembly (23) includes a mandrel (231) and a stirring paddle (232). The mandrel (231) is a long round shaft. The stirring paddle (232) includes a paddle rod and a blade fixed to the suspended end of the paddle rod. The top of the blade is semi-circular and inclined. The semi-circular shape of the blade matches the semi-circular shape of the bottom of the receiving bucket (21). There are several stirring paddles (232). The several stirring paddles (232) are spirally arranged along the outer surface of the mandrel (231) and fixed around the mandrel (231) in a radiating manner. When the mandrel (231) rotates, it can drive the several stirring paddles (232) to rotate simultaneously to stir the material and push the material towards the discharge port of the receiving bucket (21).

7. The wet ash removal device for incineration according to claim 6, characterized in that: The agitator assembly (23) further includes a bearing housing (233) and a motor (234). The bearing housing (233) consists of two pieces and is respectively connected to both ends of the spindle (231). The output shaft of the motor (234) is connected to one end of the spindle (231).

8. The wet ash removal device for incineration according to claim 7, characterized in that: The spray assembly (24) includes a serpentine water pipe (241) and spray nozzles (242). The serpentine water pipe (241) is a serpentine water pipe with both ends sealed. The serpentine water pipe (241) is provided with an inlet that connects to an external water supply network. There are several spray nozzles (242), which are distributed and connected below the serpentine water pipe (241), with the opening of the spray nozzles (242) facing downward.

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