Flue gas emission device of pyrolysis carbonization equipment

Abstract

The utility model discloses a flue gas emission device of pyrolysis carbonization equipment, which belongs to the technical field of pyrolysis carbonization and particularly comprises a carbonization machine and a flue gas exhaust port arranged on the carbonization machine. The fan is arranged on the carbonization machine, the air inlet end of the fan is communicated with the smoke exhaust port through a smoke exhaust pipeline, and the air outlet end of the fan is connected with a smoke conveying pipeline; the dust removal mechanism is arranged on the carbonization machine and comprises a dust removal cabinet, a smoke inlet and a smoke outlet, the smoke inlet and the smoke outlet are formed in the dust removal cabinet, a smoke flow guide assembly is fixedly arranged in the dust removal cabinet, the smoke inlet is communicated with the smoke conveying pipeline, and a dust removal filter bag is fixedly arranged at the smoke outlet; according to the utility model, through the dust removal cabinet and the flue gas diversion assembly, flue gas can continue to circulate in the dust removal cabinet, the circulation space of the flue gas in the dust removal cabinet is increased, a traditional method of cooling the flue gas by adopting a condenser is replaced, and the problem that the pipeline is blocked by particulate matters due to the fact that a condensation pipeline is relatively thin is avoided; and the problem that the pipeline is inconvenient to clean is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pyrolysis carbonization, and in particular relates to a smoke exhaust device for pyrolysis carbonization equipment. Background Art

[0002] The main components of the gas produced during the pyrolysis and carbonization of biomass are CO2, H20, N2 and a small amount of SO2 and CO; the other part is the volatile components produced by the carbonization and thermal decomposition of the material, such as CO, H2, CH4, alkanes, olefins, tar, wood acetate and particulate matter.

[0003] A biomass pyrolysis carbonization furnace is disclosed in Chinese utility model patent CN219032085U, including a pyrolysis carbonization furnace assembly, wherein the pyrolysis carbonization furnace assembly includes an outer carbon steel cylinder, a connecting ring, and an inner stainless steel cylinder; the outer carbon steel cylinder and the inner stainless steel cylinder are fixedly connected on one side thereof by a connecting ring. The utility model can use an organic heat carrier or hot molten salt with a higher specific heat capacity as a heat source, heat the organic heat carrier or hot molten salt by an external heating furnace, and transfer the heat to the inner stainless steel cylinder of the pyrolysis carbonization furnace assembly through a coil, thereby ensuring that the biomass fuel in the pyrolysis carbonization furnace assembly is heated evenly, thereby improving work efficiency and use effect.

[0004] Although the above-mentioned documents can ensure that the biomass fuel in the pyrolysis carbonization furnace assembly is heated evenly and improve work efficiency and use effect, the flue gas treatment effect emitted during the biomass pyrolysis carbonization process is poor, and the particulate matter or tar in the flue gas is easy to adhere to the pipeline, which can easily cause pipeline blockage and troublesome pipeline cleaning. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a smoke exhaust device for pyrolysis carbonization equipment, which has the characteristics of avoiding pipeline blockage and facilitating pipeline cleaning.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smoke exhaust device for pyrolysis carbonization equipment, comprising a carbonization machine and a smoke exhaust port arranged on the carbonization machine;

[0007] A fan is arranged on the carbonizing machine, the air inlet end of the fan is connected to the smoke exhaust port through a smoke exhaust pipe, and the air outlet end of the fan is connected to a smoke delivery pipe;

[0008] The dust removal mechanism arranged on the carbonizer is used for cooling the flue gas. The dust removal mechanism includes a dust removal cabinet, a smoke inlet and a smoke outlet arranged on the dust removal cabinet. A smoke guide component is fixedly arranged in the dust removal cabinet. The smoke inlet is connected to the smoke conveying duct, and a dust removal filter bag is fixedly arranged at the smoke outlet.

[0009] Preferably, the bottom of the dust removal cabinet is an open structure, an inclined plate is fixedly provided at the bottom of the dust removal cabinet, and a drainage pipe extending to the outside of the dust removal cabinet is fixedly provided above the bottom end of the inclined plate.

[0010] Preferably, the inclination angle of the inclined plate is less than 30°.

[0011] Preferably, the smoke guide assembly includes a plurality of first guide plates and second guide plates that are spaced apart from each other, and the plurality of first guide plates and second guide plates are staggeredly arranged in an "S" shape inside the dust removal cabinet.

[0012] Preferably, it also includes a cooling mechanism arranged on the dust removal cabinet, which is used to cool the flue gas in the dust removal cabinet, and the cooling mechanism includes a water supply pipe fixedly arranged on the top of the dust removal cabinet, one end of the water supply pipe is connected to a water supply assembly, a cooling pipe extending into the dust removal cabinet is fixedly arranged on the water supply pipe, a shunt pipe is fixedly arranged on the other end of the cooling pipe, a water spray pipe is fixedly arranged on the shunt pipe, and a plurality of spray nozzles are arranged at intervals on the water spray pipe.

[0013] Preferably, the water supply assembly includes a water supply pump and a condenser, one end of the water supply pump is connected to one end of the condenser, and the other end of the condenser is connected to the water supply pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model uses the dust collection cabinet and the smoke guide component to facilitate the smoke to continue to circulate inside the dust collection cabinet and increase the circulation space of the smoke in the dust collection cabinet, replacing the traditional method of using a condenser to cool the smoke, avoiding the problem of particulate matter clogging the pipe due to the thin condensation pipe, and overcoming the problem that the pipe is difficult to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the top view of the structure of Embodiment 1 of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of Embodiment 1 of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the smoke guide assembly of Example 1 of the utility model;

[0020] Figure 4 This is a schematic diagram of the top view of the structure of Embodiment 2 of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the smoke guide assembly of Example 2 of the utility model;

[0022] Figure 6 For this utility model Figure 5 The enlarged structural diagram at A in the middle;

[0023] In the figure: 1. carbonizing machine; 2. fan; 3. smoke exhaust duct; 4. smoke delivery duct; 5. dust removal cabinet; 6. smoke inlet; 7. smoke outlet; 8. smoke guide assembly; 81. first guide plate; 82. second guide plate; 9. dust filter bag; 10. inclined plate; 11. drain pipe; 12. cooling mechanism; 121. water supply pipe; 122. cooling pipe; 123. diverter pipe; 124. water spray pipe; 125. spray nozzle; 126. water supply pump; 127. condenser. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] See also Figure 1-3 This embodiment provides the following technical solution: a smoke exhaust device for pyrolysis carbonization equipment, including a carbonizer 1 and a smoke exhaust port arranged on the carbonizer 1. The carbonizer 1 can be used to perform pyrolysis carbonization operations on biomass, and the smoke generated during the pyrolysis carbonization of biomass can be discharged from the carbonizer 1 through the smoke exhaust port.

[0027] The fan 2 is arranged on the carbonization machine 1 , and the air inlet end of the fan 2 is connected to the smoke exhaust port through the smoke exhaust pipe 3 , and the air outlet end of the fan 2 is connected to the smoke delivery pipe 4 , through which the smoke can be drawn out of the carbonization machine 1 .

[0028] In this embodiment, both the smoke exhaust pipe 3 and the smoke delivery pipe 4 use Ø273 mm pipes, avoiding the use of small diameter, long length and straight angle pipes, reducing the adhesion of particulate matter and tar in the pipes, and the large pipe diameter delays the possibility of pipe blockage; the pipe at the connection is short, the airflow moves fast and does not stop, further reducing the possibility of pipe blockage.

[0029] The dust removal mechanism arranged on the carbonizer 1 is used for cooling the flue gas. The dust removal mechanism includes a dust removal cabinet 5, a smoke inlet 6 and a smoke outlet 7 arranged on the dust removal cabinet 5. A smoke guide component 8 is fixedly arranged in the dust removal cabinet 5. The smoke inlet 6 is connected to the smoke conveying pipe 4, and the smoke outlet 7 is fixedly provided with a dust filter bag 9. Through the smoke exhaust pipe 3, the dust removal cabinet 5 and the smoke guide component 8, the flue gas can continue to circulate inside the dust removal cabinet 5, and the circulation space of the flue gas in the dust removal cabinet 5 is increased, replacing the traditional method of using a condenser 127 to cool the flue gas, avoiding the problem of particulate matter clogging the pipe due to the thin condensation pipe, and overcoming the problem that the pipe is inconvenient to clean. Through the dust filter bag 9, the treatment effect of the flue gas is further increased.

[0030] The smoke guide assembly 8 includes a plurality of first guide plates 81 and second guide plates 82 that are distributed at intervals. The plurality of first guide plates 81 and second guide plates 82 are arranged in an "S" shape and staggered inside the dust collector 5. The first guide plates 81 facilitate circulation of the smoke entering the dust collector 5 inside the dust collector 5, thereby increasing the time efficiency of the smoke flowing inside the dust collector 5, thereby facilitating the attachment of particulate matter and tar in the smoke to the inside of the dust collector 5, further increasing the treatment effect of the smoke.

[0031] In this embodiment, three first guide plates 81 are provided, the top of the first guide plate 81 is fixedly connected to the dust removal cabinet 5, and the bottom of the first guide plate 81 is suspended above the inclined plate 10. Two second guide plates 82 are provided, each second guide plate 82 is located between two adjacent first guide plates 81, and the second guide plate 82 is provided in the middle of the dust removal cabinet 5, the top of the second guide plate 82 is suspended from the top wall of the dust removal cabinet 5, and the bottom of the second guide plate 82 is suspended from the inclined plate 10.

[0032] The bottom of the dust removal cabinet 5 is an open structure. An inclined plate 10 is fixedly provided at the bottom of the dust removal cabinet 5. A drainage pipe 11 extending to the outside of the dust removal cabinet 5 is fixedly provided above the bottom end of the inclined plate 10. The particulate matter and tar in the dust removal cabinet 5 can be diverted through the inclined plate 10.

[0033] When the inclination angle of the inclined plate 10 is less than 30°, the particles or tar will move downward along the inclined surface, so that the drainage pipe 11 is discharged regularly, thereby reducing blockage.

[0034] Working principle of this embodiment: During the pyrolysis and carbonization process of biomass by the carbonizer 1, the fan 2 is started through the control system, so that the smoke generated by the carbonizer 1 is discharged into the dust removal cabinet 5 through the smoke exhaust pipe 3 and the smoke delivery pipe 4. With the cooperation of the first guide plate 81, the second guide plate 82 and the inner wall of the dust removal cabinet 5, the smoke can flow in an "S" shape in the dust removal cabinet 5, making it easier for particulate matter and tar in the smoke to fall on the inclined plate 10.

[0035] Example 2

[0036] See also Figure 4-6 , and further includes a cooling mechanism 12 arranged on the dust removal cabinet 5, which is used to cool the smoke in the dust removal cabinet 5. The cooling mechanism 12 includes a water supply pipe 121 fixedly arranged on the top of the dust removal cabinet 5, one end of the water supply pipe 121 is connected to a water supply assembly, a cooling pipe 122 extending into the dust removal cabinet 5 is fixedly arranged on the water supply pipe 121, and a shunt pipe 123 is fixedly arranged on the other end of the cooling pipe 122, a water spray pipe 124 is fixedly arranged on the shunt pipe 123, and a plurality of spray nozzles 125 are arranged at intervals on the water spray pipe 124. , cooling pipe 122, diverter pipe 123, water spray pipe 124 and spray nozzle 125 can spray the flue gas in dust collector 5, and in the process of spraying the flue gas, not only the hot air in the flue gas can be cooled, but also the particulate matter and tar in the flue gas will fall on the inclined plate 10 due to gravity, and then be discharged from the dust collector 5 along the inclined plate 10, and while the spray nozzle 125 is spraying the flue gas, the spray nozzle 125 can also clean the particulate matter and tar attached to the inner wall of the dust collector 5 and the side walls of the first guide plate 81 and the second guide plate 82.

[0037] The water supply assembly includes a water supply pump 126 and a condenser 127. One end of the water supply pump 126 is connected to one end of the condenser 127, and the other end of the condenser 127 is connected to the water supply pipe 121. Through the water supply pump 126 and the condenser 127, the cooled cooling water can enter the dust removal cabinet 5, thereby further improving the efficiency of cooling the flue gas.

[0038] The working principle of this practical embodiment is as follows: when the flue gas enters the dust removal cabinet 5, the water supply pump 126 is used to supply water to the condenser 127 through the control system, and then the condenser 127 is started to cool the water entering the condenser 127. The cooled water passes through the water supply pipe 121, the cooling pipe 122, the diversion pipe 123, the water spray pipe 124 and the spray nozzle 125 to spray the flue gas, and while spraying, the particulate matter and tar in the flue gas fall onto the inclined plate 10 due to gravity.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flue gas exhaust device for pyrolysis carbonization equipment, characterized in that: It comprises a carbonizing machine (1) and a smoke exhaust port arranged on the carbonizing machine (1); A fan (2) is arranged on the carbonization machine (1), the air inlet end of the fan (2) is connected to the smoke exhaust port via a smoke exhaust pipe (3), and the air outlet end of the fan (2) is connected to a smoke conveying pipe (4); A dust removal mechanism is arranged on the carbonizing machine (1) and is used for cooling the flue gas. The dust removal mechanism comprises a dust removal cabinet (5), a smoke inlet (6) and a smoke outlet (7) arranged on the dust removal cabinet (5). A smoke guide assembly (8) is fixedly arranged in the dust removal cabinet (5). The smoke inlet (6) is connected to the smoke conveying pipe (4), and a dust removal filter bag (9) is fixedly arranged at the smoke outlet (7).

2. The smoke exhaust device of the pyrolysis carbonization equipment according to claim 1, characterized in that: The bottom of the dust removal cabinet (5) is an open structure, an inclined plate (10) is fixedly provided at the bottom of the dust removal cabinet (5), and a drainage pipe (11) extending to the outside of the dust removal cabinet (5) is fixedly provided above the bottom end of the inclined plate (10).

3. The smoke exhaust device of the pyrolysis carbonization equipment according to claim 2, characterized in that: The inclination angle of the inclined plate (10) is less than 30°.

4. The smoke exhaust device of the pyrolysis carbonization equipment according to claim 1, characterized in that: The smoke guide assembly (8) comprises a plurality of first guide plates (81) and second guide plates (82) that are spaced apart from each other, and the plurality of first guide plates (81) and second guide plates (82) are arranged in an S-shaped staggered manner inside the dust removal cabinet (5).

5. The smoke exhaust device of the pyrolysis carbonization equipment according to claim 1, characterized in that: It also comprises a cooling mechanism (12) arranged on the dust removal cabinet (5) for cooling the smoke in the dust removal cabinet (5), the cooling mechanism (12) comprising a water supply pipe (121) fixedly arranged on the top of the dust removal cabinet (5), one end of the water supply pipe (121) being connected to a water supply assembly, a cooling pipe (122) extending into the dust removal cabinet (5) being fixedly arranged on the water supply pipe (121), a shunt pipe (123) being fixedly arranged on the other end of the cooling pipe (122), a water spray pipe (124) being fixedly arranged on the shunt pipe (123), and a plurality of spray nozzles (125) being arranged at intervals on the water spray pipe (124).

6. The smoke exhaust device of the pyrolysis carbonization equipment according to claim 5, characterized in that: The water supply assembly comprises a water supply pump (126) and a condenser (127); one end of the water supply pump (126) is connected to one end of the condenser (127); and the other end of the condenser (127) is connected to the water supply pipe (121).

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