Out-furnace pyrolysis device

Abstract

The utility model relates to the technical field of pyrolyzing furnaces, in particular to an external pyrolyzing device which comprises a vertical electric heater, an air inlet pipe and an ash discharging assembly, the air inlet pipe is fixedly connected with the outer circumference of the vertical electric heater, an end cover is installed on the upper surface of the vertical electric heater, and an air outlet pipe is fixedly connected with the outer circumference of the vertical electric heater. The ash discharging assembly is arranged on the side surface of the air outlet pipe; and the dust discharging assembly comprises a guide unit, the guide unit comprises an exhaust pipe, the exhaust pipe is in bolted connection with the side surface of the air outlet pipe, the outer circumference of the exhaust pipe is fixedly connected with a storage pipe, and the outer circumference of the exhaust pipe is fixedly connected with an assembly base. According to the utility model, the dust discharging assembly is arranged, so that dust can be collected when the equipment works, the problems that the dust is accumulated in the exhaust pipeline, the exhaust pipeline is blocked, the load of the equipment is increased and tripping occurs are solved, and the stability of the equipment in a working state is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pyrolysis furnaces, in particular to an external pyrolysis device. Background Art

[0002] The off-furnace pyrolysis device is a device used for pyrolysis reaction, usually used to treat solid waste, organic waste, biomass and other materials. Its working principle is to put the material to be treated into the off-furnace pyrolysis device, and heat it to cause pyrolysis reaction, decomposing the organic matter into gas, liquid and solid products. The pyrolysis reaction is usually carried out in an oxygen-deficient or inert atmosphere to avoid the occurrence of combustion reaction; the off-furnace pyrolysis device is usually composed of heating, furnace body, feeding, exhaust, condensation, collection, control and other systems. In the heating system, electric heaters are often used to heat the gas.

[0003] In the process of pyrolysis denitrification of flue gas by means of an off-furnace pyrolysis device, there is an existing electric heater used for pyrolysis denitrification that is directly connected to the pyrolysis furnace through a pipeline for operation. During the operation of the electric heater, the pyrolysis flue gas contains dust, which will accumulate in the outlet pipe of the electric heater. The dust in the pipe will clog the pipe after long-term accumulation, and cause an increase in the load on the outlet pipe of the electric heater, thereby causing the electric heater to trip due to dust accumulation under normal working conditions. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that dust in the pipeline will clog the pipeline due to long-term accumulation, and cause the load of the electric heater outlet pipeline to increase, thereby causing the electric heater to trip due to dust accumulation under normal working conditions, and to propose an off-furnace pyrolysis device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an out-of-furnace pyrolysis device, comprising a vertical electric heater, an air inlet pipe and an ash discharge assembly, wherein the air inlet pipe is fixedly connected to the outer circumference of the vertical electric heater, an end cover is installed on the upper surface of the vertical electric heater, an air outlet pipe is fixedly connected to the outer circumference of the vertical electric heater, and the ash discharge assembly is arranged on the side surface of the air outlet pipe;

[0006] The ash placing assembly comprises a guide unit, the guide unit comprises an exhaust pipe, the exhaust pipe is bolted to the side surface of the exhaust pipe, a receiving pipe is fixedly connected to the outer circumference of the exhaust pipe, an assembly base is fixedly connected to the outer circumference of the exhaust pipe, a servo motor is fixedly connected to the upper surface of the assembly base, a driving end of the servo motor is rotatably connected to a rotating shaft, a connecting rod is bolted to the surface of the rotating shaft, and a threaded groove is provided on the lower surface of the connecting rod;

[0007] The dust discharge assembly also includes a sealing unit, which includes a threaded connecting rod, which is threadedly connected to the inner wall of the threaded groove, a sealing plug is fixedly connected to the lower surface of the threaded connecting rod, and the sealing plug is plugged into the inner wall of the storage tube, the outer circumference of the sealing plug is fixedly connected to a support frame, the upper surface of the support frame is fixedly connected to a guide rod, the outer circumference of the storage tube is fixedly connected to the guide frame, and the guide rod is slidably connected to the inner wall of the guide frame.

[0008] Preferably, the storage pipe is connected to the inner wall of the exhaust pipe. The storage pipe installed below the exhaust pipe can collect the dust accumulated in the exhaust pipe, thereby reducing the probability of dust accumulating in the exhaust pipe and clogging the exhaust pipe.

[0009] Preferably, the assembly base is located directly above the storage tube, a through hole is provided on the surface of the assembly base, the connecting rod is rotatably connected to the inner wall of the through hole, and the connecting rod passes through the outer circumference of the exhaust pipe. By installing the assembly base on the surface of the exhaust pipe, the staff can install the servo motor and ensure that the servo motor is located directly above the storage tube.

[0010] Preferably, the connecting rod is located on the inner wall of the storage tube, and the connecting rod installed on the surface of the rotating shaft can be rotated when the servo motor drives the rotating shaft, thereby engaging with the threaded connecting rod to push the threaded connecting rod to move downward.

[0011] Preferably, the threaded connecting rod is located on the inner wall of the storage tube. By installing the threaded connecting rod above the sealing plug, the sealing plug can be pushed downward to detach from the storage tube when the connecting rod is driven, so that the sealing plug can be automatically opened.

[0012] Preferably, the sealing plug is stepped, the diameter of the limiting end of the sealing plug is equal to the outer circumference of the storage tube, the insertion end of the sealing plug is set at an oblique angle, and the diameter of the insertion end of the sealing plug is equal to the inner circumference of the storage tube. By designing the sealing plug to be stepped, the depth of its insertion into the storage tube can be limited while realizing the function of blocking the outlet of the storage tube.

[0013] Preferably, the number of the guide rods is three, and the three guide rods are arranged in a circular array about the sealing plug. Through the cooperation between the guide rods and the guide frame, the moving direction of the sealing plug can be guided and the position state of the sealing plug can be restricted.

[0014] Compared with the prior art, the advantages and positive effects of the utility model are:

[0015] In the utility model, by setting an ash discharge component, when the equipment is working, the flue gas enters the vertical electric heater through the air inlet pipe, the vertical electric heater heats the incoming gas, and the flue gas that has completed the heating treatment is discharged through the air outlet pipe and enters the exhaust pipe; when the flue gas enters the exhaust pipe, the dust mixed in the flue gas falls into the storage pipe through the guidance of the exhaust pipe. When the staff needs to discharge the dust in the storage pipe, the servo motor is controlled to work, the servo motor is energized to cooperate with the rotating shaft to drive the connecting rod, and the connecting rod is engaged with the threaded connecting rod through the thread groove when rotating. Under the action of the connecting rod, the threaded connecting rod pushes the sealing plug downward, and the sealing plug is subjected to force and moves downward to separate from the storage pipe under the guidance of the support frame, the guide rod and the guide frame. When the sealing plug is separated from the storage pipe, the lower port of the storage pipe is opened, and the dust in the storage pipe is discharged through the port. By setting the ash discharge component, the equipment can collect dust when it is working, thereby reducing the problem of dust accumulation in the exhaust pipe, blocking the exhaust pipe, increasing the equipment load and tripping, and further improving the stability of the equipment in the working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural diagram of an out-of-furnace pyrolysis device;

[0017] Figure 2 This is a rear view structural diagram of the out-of-furnace pyrolysis device proposed in the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the structure of the ash discharge component of the off-furnace pyrolysis device;

[0019] Figure 4 The utility model proposes a pyrolysis device outside the furnace Figure 3 Schematic diagram of the structure at A in the middle;

[0020] Figure 5 The utility model provides a partial structural front view of the out-of-furnace pyrolysis device.

[0021] Legend:

[0022] 1. Vertical electric heater; 2. Air inlet pipe; 3. End cover; 4. Air outlet pipe; 5. Ash discharge assembly; 51. Guide unit; 511. Exhaust pipe; 512. Storage pipe; 513. Assembly base; 514. Servo motor; 515. Rotating shaft; 516. Connecting rod; 517. Threaded groove; 52. Blocking unit; 521. Threaded connecting rod; 522. Sealing plug; 523. Support frame; 524. Guide rod; 525. Guide frame. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 5The utility model provides a technical solution: an off-furnace pyrolysis device, comprising a vertical electric heater 1, an air inlet pipe 2 and an ash discharge assembly 5, the air inlet pipe 2 is fixedly connected to the outer circumference of the vertical electric heater 1, an end cover 3 is installed on the upper surface of the vertical electric heater 1, an air outlet pipe 4 is fixedly connected to the outer circumference of the vertical electric heater 1, and the ash discharge assembly 5 is arranged on the side surface of the air outlet pipe 4.

[0024] In this embodiment: the ash placing assembly 5 includes a guide unit 51, the guide unit 51 includes an exhaust pipe 511, the exhaust pipe 511 is bolted to the side surface of the exhaust pipe 4, the outer circumference of the exhaust pipe 511 is fixedly connected to a storage pipe 512, the outer circumference of the exhaust pipe 511 is fixedly connected to an assembly base 513, the upper surface of the assembly base 513 is fixedly connected to a servo motor 514, the driving end of the servo motor 514 is rotatably connected to a rotating shaft 515, the surface of the rotating shaft 515 is bolted to a connecting rod 516, and the lower surface of the connecting rod 516 is provided with a threaded groove 517;

[0025] The dust discharge assembly 5 also includes a sealing unit 52, which includes a threaded connecting rod 521, which is threadedly connected to the inner wall of the threaded groove 517, and a sealing plug 522 is fixedly connected to the lower surface of the threaded connecting rod 521, and the sealing plug 522 is plugged into the inner wall of the storage tube 512, and the outer circumference of the sealing plug 522 is fixedly connected to a support frame 523, and the upper surface of the support frame 523 is fixedly connected to a guide rod 524, and the outer circumference of the storage tube 512 is fixedly connected to a guide frame 525, and the guide rod 524 is slidably connected to the inner wall of the guide frame 525.

[0026] Specifically, the storage tube 512 is connected to the inner wall of the exhaust pipe 511. The storage tube 512 installed below the exhaust pipe 511 can collect the dust accumulated in the exhaust pipe 511, thereby reducing the probability of dust accumulating in the exhaust pipe 511 and clogging the exhaust pipe 511.

[0027] Specifically, the assembly base 513 is located directly above the storage tube 512 , a through hole is opened on the surface of the assembly base 513 , the connecting rod 516 is rotatably connected to the inner wall of the through hole, and the connecting rod 516 passes through the outer circumference of the exhaust pipe 511 .

[0028] In this embodiment: by installing the assembly base 513 on the surface of the exhaust pipe 511 , the staff can install the servo motor 514 and ensure that the servo motor 514 is located directly above the storage tube 512 .

[0029] Specifically, the connecting rod 516 is located on the inner wall of the storage tube 512. The connecting rod 516 installed on the surface of the rotating shaft 515 can rotate when the servo motor 514 drives the rotating shaft 515, thereby engaging with the threaded connecting rod 521 to push the threaded connecting rod 521 to move downward.

[0030] In this embodiment, the threaded connecting rod 521 is located on the inner wall of the receiving tube 512 .

[0031] In this embodiment: by means of the threaded connecting rod 521 installed above the sealing plug 522, the sealing plug 522 can be pushed downward to separate from the storage tube 512 when the connecting rod 516 is driven, so that the sealing plug 522 can be automatically opened.

[0032] Specifically, the sealing plug 522 is stepped, and the diameter of the limiting end of the sealing plug 522 is equal to the outer circumference of the storage tube 512. The insertion end of the sealing plug 522 is set at an oblique angle, and the diameter of the insertion end of the sealing plug 522 is equal to the inner circumference of the storage tube 512. By designing the sealing plug 522 to be stepped, the depth of its insertion into the storage tube 512 can be limited when the function of blocking the outlet of the storage tube 512 is realized.

[0033] Specifically, there are three guide rods 524 , and the three guide rods 524 are arranged in a circular array about the sealing plug 522 .

[0034] In this embodiment: through the cooperation between the guide rod 524 and the guide frame 525, the moving direction of the sealing plug 522 can be guided, and the position state of the sealing plug 522 can be restricted at the same time.

[0035] Working principle: When the equipment is working, the flue gas enters the vertical electric heater 1 through the air inlet pipe 2, and the vertical electric heater 1 heats the incoming gas. The flue gas that has completed the heating treatment is discharged through the air outlet pipe 4 and enters the exhaust pipe 511; when the flue gas enters the exhaust pipe 511, the dust mixed in the flue gas falls into the storage pipe 512 under the guidance of the exhaust pipe 511. When the staff needs to discharge the dust in the storage pipe 512, the servo motor 514 is controlled to work, and the servo motor 514 is energized to cooperate with the rotating shaft 51 The connecting rod 516 is driven, and the connecting rod 516 is engaged with the threaded connecting rod 521 through the thread groove 517 when rotating. Under the action of the connecting rod 516, the threaded connecting rod 521 pushes the sealing plug 522 downward. The sealing plug 522 is subjected to the force and moves downward to be separated from the receiving tube 512 under the guidance of the supporting frame 523, the guide rod 524 and the guide frame 525. When the sealing plug 522 is separated from the receiving tube 512, the lower port of the receiving tube 512 is opened, and then the dust in the receiving tube 512 is discharged through the port.

Claims

1. An off-furnace pyrolysis device, comprising a vertical electric heater (1), an air inlet pipe (2) and an ash discharge assembly (5), characterized in that: The air inlet pipe (2) is fixedly connected to the outer circumference of the vertical electric heater (1); an end cover (3) is installed on the upper surface of the vertical electric heater (1); an air outlet pipe (4) is fixedly connected to the outer circumference of the vertical electric heater (1); and the ash discharge assembly (5) is arranged on the side surface of the air outlet pipe (4); The ash placing assembly (5) comprises a guide unit (51), the guide unit (51) comprises an exhaust pipe (511), the exhaust pipe (511) is bolted to the side surface of the exhaust pipe (4), a storage pipe (512) is fixedly connected to the outer circumference of the exhaust pipe (511), an assembly base (513) is fixedly connected to the outer circumference of the exhaust pipe (511), a servo motor (514) is fixedly connected to the upper surface of the assembly base (513), a driving end of the servo motor (514) is rotatably connected to a rotating shaft (515), a connecting rod (516) is bolted to the surface of the rotating shaft (515), and a threaded groove (517) is provided on the lower surface of the connecting rod (516); The ash discharging assembly (5) further comprises a blocking unit (52), the blocking unit (52) comprising a threaded connecting rod (521), the threaded connecting rod (521) being threadedly connected to the inner wall of the threaded groove (517), a sealing plug (522) being fixedly connected to the lower surface of the threaded connecting rod (521), the sealing plug (522) being plugged into the inner wall of the storage tube (512), the outer circumference of the sealing plug (522) being fixedly connected to a support frame (523), the upper surface of the support frame (523) being fixedly connected to a guide rod (524), the outer circumference of the storage tube (512) being fixedly connected to a guide frame (525), and the guide rod (524) being slidably connected to the inner wall of the guide frame (525).

2. The pyrolysis device outside the furnace according to claim 1, characterized in that: The storage pipe (512) is in communication with the inner wall of the exhaust pipe (511).

3. The pyrolysis device outside the furnace according to claim 1, characterized in that: The assembly base (513) is located directly above the storage tube (512); a through hole is provided on the surface of the assembly base (513); the connecting rod (516) is rotatably connected to the inner wall of the through hole; and the connecting rod (516) passes through the outer circumference of the exhaust pipe (511).

4. The pyrolysis device outside the furnace according to claim 1, characterized in that: The connecting rod (516) is located on the inner wall of the storage tube (512).

5. The pyrolysis device outside the furnace according to claim 1, characterized in that: The threaded connecting rod (521) is located on the inner wall of the storage tube (512).

6. The pyrolysis device outside the furnace according to claim 1, characterized in that: The sealing plug (522) is stepped, the diameter of the limiting end of the sealing plug (522) is equal to the outer circumference of the storage tube (512), the insertion end of the sealing plug (522) is arranged at an oblique angle, and the diameter of the insertion end of the sealing plug (522) is equal to the inner circumference of the storage tube (512).

7. The pyrolysis device outside the furnace according to claim 1, characterized in that: The number of the guide rods (524) is three, and the three guide rods (524) are arranged in a circular array with respect to the sealing plug (522).

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