Dangerous waste incineration fly ash conveying device

Abstract

The hazardous waste incineration fly ash conveying device comprises a spiral pipeline, a spiral reamer is rotationally arranged in the spiral pipeline, a pneumatic spiral mechanism connected with one end of the spiral reamer is arranged on one side of the spiral pipeline, and a gas exhaust pipe is arranged on the top side of one end of the spiral pipeline. A dust remover is arranged in the gas discharge pipe, and a collecting mechanism is further arranged on the bottom side of one end of the spiral pipeline. According to the device, the spiral reamer is driven to rotate through the pneumatic spiral mechanism, so that fly ash is conveyed into the gas discharge pipe, dust carried in the fly ash is filtered and purified through the dust remover and then discharged to the outside, and ash residues are uniformly recycled into the collecting mechanism. Meanwhile, purified air serves as a power source of the pneumatic screw mechanism to provide power for the pneumatic screw machine, so that the problem that an existing screw motor is damaged due to the fact that pressure is too high can be solved, energy consumption can be reduced, and the purposes of saving cost, being safe and environmentally friendly and saving energy are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of hazardous waste treatment equipment, and in particular to a hazardous waste incineration fly ash conveying device. Background Art

[0002] At present, due to the uncertainty of some hazardous wastes and the wide variety of hazardous wastes with different properties, the fly ash produced during the incineration process of hazardous wastes has a relatively complex composition and a relatively high salt content. It may also contain some organic pollutants and metal pollutants, and is easy to carry moisture in the flue gas, making the fly ash prone to salt absorption, resulting in moisture and the formation of compaction, etc.

[0003] As for the existing screw conveyors, once the shape of the conveyed material changes, the screw motor is prone to damage due to excessive pressure and pipeline blockage. In addition, the screw conveyors generally have high energy consumption and limited adaptability, which are not in line with the concept of green environmental protection. Utility Model Content

[0004] The purpose of the present application is to provide a fly ash conveying device for hazardous waste incineration, so as to solve the problems in the existing screw conveying, that once the form of the conveyed material changes, the screw motor is easily damaged by excessive pressure and the pipeline is blocked, and there are generally problems such as high energy consumption and limited adaptability that are not in line with the green environmental protection concept.

[0005] The present application provides a hazardous waste incineration fly ash conveying device using the following technical solution:

[0006] A device for conveying fly ash from the incineration of hazardous waste comprises a spiral pipe, a spiral reamer is rotatably arranged inside the spiral pipe, the spiral reamer abuts against the inner wall of the spiral pipe, a pneumatic screw mechanism is arranged on one side of the spiral pipe, the pneumatic screw mechanism is connected to one end of the spiral reamer to drive the spiral reamer to rotate, a gas exhaust pipe is arranged on the top side of one end of the spiral pipe away from the pneumatic screw mechanism, a dust collector is arranged in the gas exhaust pipe, and a collection mechanism for recovering ash is also arranged on the bottom side of one end of the spiral pipe.

[0007] Furthermore, the pneumatic screw mechanism includes an air source supplier arranged outside the spiral pipeline, the air outlet end of the air source supplier is connected to the air source supply pipe, the air source supply pipe is connected to the first air supply pipe through a connecting piece, and a pneumatic screw machine is arranged at one end of the spiral pipeline, and the input end of the pneumatic screw machine is connected to one end of the first air supply pipe.

[0008] Furthermore, the connecting piece is also connected to the spiral pipeline through a second air pipe.

[0009] Furthermore, the connecting piece is a three-way pipe head, one end of which is connected to one end of the gas source supply pipe, and two opposite ends of the three-way pipe head are respectively connected to one end of the first gas pipe and the second gas pipe.

[0010] Furthermore, a flow controller is provided on the gas source supply pipe, and both the first gas supply pipe and the second gas supply pipe are provided with opening and closing valves.

[0011] Furthermore, a plurality of exhaust holes are provided on the spiral reamer, and an anti-backflow structure is provided in the hole wall of the exhaust hole.

[0012] Furthermore, the collecting mechanism comprises a slag bucket placed on the ground, a collecting pipe is detachably and sealedly provided on the top of the slag bucket, and one end of the collecting pipe away from the slag bucket is connected to the spiral pipe.

[0013] Furthermore, an ash hopper is provided on the top side of one end of the spiral pipeline close to the pneumatic screw mechanism.

[0014] Compared with the prior art, the beneficial effect of the present application lies in: by setting a structure in which a spiral pipe, a spiral reamer, a pneumatic spiral mechanism, a gas exhaust pipe, a dust collector and a collection mechanism cooperate with each other, when the pneumatic spiral mechanism is started, the spiral reamer in the spiral pipe is driven to rotate to transport the fly ash to the gas exhaust pipe, and then the dust collector in the gas exhaust pipe filters and purifies the dust entrained in the fly ash before discharging it to the outside, and the ash residue is uniformly recovered into the collection mechanism.

[0015] At the same time, the pneumatic screw mechanism uses purified air as a power source to provide power for the pneumatic screw machine, which not only solves the problem of damage caused by excessive pressure in existing screw motors, but also reduces energy consumption, achieving the purpose of cost saving and safety, environmental protection and energy saving.

[0016] In addition, by providing a plurality of exhaust holes and an anti-backflow structure on the spiral reamer, it is possible to prevent the fly ash material from backflowing and blocking the air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a hazardous waste incineration fly ash conveying device according to an embodiment of the present application.

[0018] Explanation of the reference numerals: 1. spiral pipe; 11. ash hopper; 12. gas discharge pipe; 13. dust collector; 2. spiral reamer; 21. exhaust hole; 3. gas source supplier; 31. gas source supply pipe; 311. flow controller; 32. three-way pipe head; 33. first gas supply pipe; 34. second gas supply pipe; 35. opening and closing valve; 4. pneumatic screw machine; 5. slag bucket; 51. collecting pipe. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1 This application is described in further detail.

[0020] The present application embodiment discloses a hazardous waste incineration fly ash conveying device, referring to Figure 1 In this embodiment, the conveying device includes a spiral pipe 1, a spiral reamer 2, a pneumatic spiral mechanism, a gas exhaust pipe 12, a dust collector 13 and a collection mechanism. The spiral pipe 1 is firmly installed on the ground through a support frame; the spiral reamer 2 is rotatably installed inside the spiral pipe 1, and the outer side of the spiral reamer 2 abuts against the inner wall of the spiral pipe 1; the pneumatic spiral mechanism is installed on one end of the spiral pipe 1, and the output end of the pneumatic spiral mechanism is connected to one end of the spiral reamer 2 to drive the spiral reamer 2 to rotate.

[0021] An ash hopper 11 is installed on the top side of one end of the spiral pipe 1 close to the pneumatic screw mechanism. The ash hopper 11 is connected to an external fly ash supply structure to supply the fly ash to be processed from the ash hopper 11 into the spiral pipe 1, and then the fly ash is transported by the rotation of the spiral reamer 2.

[0022] Specifically, in this embodiment, the pneumatic screw mechanism includes an air source supplier 3, an air source supply pipe 31, a first air delivery pipe 33, a connector and a pneumatic screw machine 4. The air source supplier 3 is mounted on the carrier and is located outside the spiral pipe 1; one end of the air source supply pipe 31 is connected to the air outlet of the air source supplier 3, and the air source supplier 3 purifies the air and then supplies it into the air source supply pipe 31; one end of the first air delivery pipe 33 is connected to the air source supply pipe 31 through a connector; the pneumatic screw machine 4 is mounted on one end of the spiral pipe 1, and one end of the first air delivery pipe 33 away from the air source supply pipe 31 is connected to the input end of the pneumatic screw machine 4.

[0023] At the same time, the connecting piece is also interconnected with one end of the spiral pipe 1 through the second air supply pipe 34, and the connecting piece is a three-way pipe head 32; specifically, one end of the three-way pipe head 32 is interconnected with one end of the air source supply pipe 31 away from the air source supplier 3, and the other two opposite ends of the three-way pipe head 32 are respectively interconnected with one end of the first air supply pipe 33 and the second air supply pipe 34.

[0024] When the air source supplier 3 is started, the air source supplier 3 supplies the purified air to the air source supply pipe 31, and then transports the air source to the first air pipe 33 and the second air pipe 34 respectively through the three-way pipe head 32, wherein the air source is transported to the pneumatic screw machine 4 through the first air pipe 33 to provide power for the pneumatic screw machine 4, so that the pneumatic screw machine 4 drives the spiral reamer 2 to rotate, and then the spiral reamer 2 transports the fly ash.

[0025] At the same time, the second air supply pipe 34 directly delivers the air source to the spiral pipe 1, which can blow the fly ash in the spiral pipe 1; and a plurality of exhaust holes 21 are provided on the spiral reamer 2. When the second air supply pipe 34 directly delivers the air source to the spiral pipe 1 to blow the fly ash, the fly ash is evenly blown along the exhaust holes 21 during the transportation process through the arrangement of the exhaust holes 21. In addition, an anti-backflow structure is installed in the hole wall of the exhaust holes 21, which can prevent the fly ash material from backflowing and blocking the air pipe.

[0026] Therefore, the pneumatic screw mechanism uses purified air as a power source to provide power for the pneumatic screw machine 4, which can not only solve the problem of damage caused by excessive pressure in the existing screw motor, but also reduce energy consumption, achieving the purpose of cost saving and safety, environmental protection and energy saving.

[0027] Preferably, in this embodiment, a flow controller 311 is installed on the gas source supply pipe 31, and the flow controller 311 cooperates with the gas source supplier 3 to control the size of the gas source, so as to achieve the effect of online clearing. At the same time, an opening and closing valve 35 is installed on both the first gas pipeline 33 and the second gas pipeline 34, and the two opening and closing valves 35 can control the opening and closing of the first gas pipeline 33 and the second gas pipeline 34 respectively. When the equipment is started, through the setting of the opening and closing valve 35, it can be decided whether to open the gas source in the first gas pipeline 33 or the second gas pipeline 34 according to the condition of fly ash compaction.

[0028] In addition, refer to Figure 1 In this embodiment, the gas exhaust pipe 12 is installed on the top side of the spiral pipe 1 away from the pneumatic screw machine 4; the dust collector 13 is installed inside the gas exhaust pipe 12, and the dust collector 13 is a dust removal equipment that can effectively filter and purify the dust entrained in the fly ash, and then discharge the filtered gas to the outside through the gas exhaust pipe 12.

[0029] In addition, refer to Figure 1 In this embodiment, the collecting mechanism is arranged on the side of the spiral pipe 1 away from the gas discharge pipe 12, and the collecting mechanism is used to recycle the ash; specifically, the collecting mechanism includes a slag bucket 5 and a collecting pipe 51. The slag bucket 5 is placed on the bottom surface; one end of the collecting pipe 51 is fixedly connected to the side of the spiral pipe 1 away from the gas discharge pipe 12, and the other end of the collecting pipe 51 is sealed and connected to the top of the slag bucket 5, so as to recycle the ash into the slag bucket 5 along the collecting pipe 51.

[0030] At the same time, the connection between the collecting pipe 51 and the slag bucket 5 is a detachable connection. Such a design can separate the collecting pipe 51 and the slag bucket 5 from each other, so as to facilitate the slag bucket 5 to be disassembled and removed, thereby processing the ash in the slag bucket 5.

[0031] The implementation principle of the hazardous waste incineration fly ash conveying device in the present application embodiment is as follows:

[0032] When the gas source supplier 3 is started, the gas source supplier 3 supplies purified air to the gas source supply pipe 31, and then transports the gas source to the first gas pipe 33 and the second gas pipe 34 respectively through the three-way pipe head 32, wherein the gas source is transported to the pneumatic screw machine 4 through the first gas pipe 33 to provide power for the pneumatic screw machine 4, so that the pneumatic screw machine 4 drives the spiral reamer 2 to rotate, so that the spiral reamer 2 transports the fly ash to the gas exhaust pipe 12.

[0033] The second air supply pipe 34 directly delivers the gas source to the spiral pipe 1. Through the cooperation of the exhaust holes 21 and the anti-backflow structure, the fly ash in the spiral pipe 1 can be evenly blown away along the exhaust holes 21 during the transportation process; then the dust entrained in the fly ash is filtered and purified by the dust collector 13 in the gas exhaust pipe 12 before being discharged to the outside, and the ash slag is uniformly recovered into the slag bucket 5 along the collection pipe 51, thereby completing the transportation and treatment process of the fly ash.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for conveying fly ash from incineration of hazardous waste, characterized in that: The invention comprises a spiral pipe (1), wherein a spiral reamer (2) is rotatably arranged inside the spiral pipe (1), wherein the spiral reamer (2) abuts against the inner wall of the spiral pipe (1), and a pneumatic screw mechanism is arranged on one side of the spiral pipe (1), wherein the pneumatic screw mechanism is connected to one end of the spiral reamer (2) to drive the spiral reamer (2) to rotate, and a gas discharge pipe (12) is arranged on the top side of one end of the spiral pipe (1) away from the pneumatic screw mechanism, wherein a dust collector (13) is arranged in the gas discharge pipe (12), and a collection mechanism for recovering ash and slag is also arranged on the bottom side of one end of the spiral pipe (1).

2. The fly ash conveying device for incineration of hazardous waste according to claim 1 is characterized in that: The pneumatic screw mechanism comprises an air source supplier (3) arranged outside the spiral pipeline (1), the air outlet end of the air source supplier (3) is connected to an air source supply pipe (31), the air source supply pipe (31) is connected to a first air supply pipe (33) via a connecting piece, and a pneumatic screw machine (4) is arranged at one end of the spiral pipeline (1), and the input end of the pneumatic screw machine (4) is connected to one end of the first air supply pipe (33).

3. The fly ash conveying device for incineration of hazardous waste according to claim 2 is characterized in that: The connecting piece is also connected to the spiral pipeline (1) via a second air delivery pipe (34).

4. The fly ash conveying device for incineration of hazardous waste according to claim 3 is characterized in that: The connecting piece is a three-way pipe head (32), one end of which is connected to one end of the gas source supply pipe (31), and the opposite ends of the three-way pipe head (32) are respectively connected to one end of the first gas supply pipe (33) and one end of the second gas supply pipe (34).

5. The fly ash conveying device for hazardous waste incineration according to claim 3 is characterized in that: The gas source supply pipe (31) is provided with a flow controller (311), and the first gas supply pipe (33) and the second gas supply pipe (34) are both provided with opening and closing valves (35).

6. The fly ash conveying device for hazardous waste incineration according to claim 1 is characterized in that: The spiral reamer (2) is provided with a plurality of exhaust holes (21), and an anti-backflow structure is provided in the hole wall of the exhaust hole (21).

7. The device for conveying fly ash from incineration of hazardous waste according to claim 1 is characterized in that: The collecting mechanism comprises a slag bucket (5) placed on the ground, a collecting pipe (51) is detachably sealed and arranged on the top of the slag bucket (5), and one end of the collecting pipe (51) away from the slag bucket (5) is connected to the spiral pipe (1).

8. The fly ash conveying device for incineration of hazardous waste according to claim 1 is characterized by: An ash hopper (11) is also provided on the top side of one end of the spiral pipe (1) close to the pneumatic spiral mechanism.

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