An agricultural biomass pyrolysis treatment device

Abstract

This utility model provides an agricultural biomass pyrolysis treatment device, including: a feed inlet, a pyrolysis kiln, and a sealing seat. The lower end of the feed inlet is provided with a set of feed ports for introducing biomass materials to be pyrolyzed. The left side of the feed inlet is provided with a set of storage boxes for storing biomass materials. Compared with the prior art, this utility model has the following beneficial effects: the flue gas generated by biomass pyrolysis is introduced into the heat exchange component through a mirror L-shaped connecting pipe connected to the flue gas pipe flange. After being cooled by the water-cooled ring pipe, it is transported to the denitrification box by the inner conduit for SNCR denitrification and particulate matter adsorption. The purified flue gas is pressurized by the pump and discharged through the exhaust pipe in compliance with standards. The furnace body is connected to the external gas valve through the gas pipe to maintain the pyrolysis temperature. The pyrolysis residue falls into the crushed material storage pipe for centralized collection through the sealing seat and the discharge seat. Water-cooled heat exchange and SNCR technology realize the cascade treatment of flue gas, forming a continuous process of biomass pyrolysis, biomass purification, and biomass slag discharge.

Description

Technical Field

[0001] This utility model belongs to the field of biomass pyrolysis kiln technology and relates to an agricultural biomass pyrolysis treatment device. Background Technology

[0002] Existing biomass pyrolysis kilns suffer from several drawbacks in continuous production, including low raw material processing efficiency, unstable pyrolysis temperature control, large fluctuations in product quality, and high system maintenance costs. These drawbacks arise from various causes, including raw material inhomogeneity, the complexity of the pyrolysis reaction, limitations in equipment design, and imprecise operational control. The significant differences in the physical and chemical properties of biomass raw materials make it difficult to maintain consistency during pyrolysis, thus affecting the stability of the pyrolysis temperature and the uniformity of the products. Conventional solutions include optimizing the raw material pretreatment process, improving the design of the pyrolysis kiln, and adopting a more precise control system. Pretreatment methods such as screening and crushing can reduce the physical differences in raw materials, or adding stirring devices can improve the flowability and heat exchange efficiency of materials within the pyrolysis kiln. However, these methods increase system complexity and cost, and may introduce new operational and maintenance problems. Therefore, there is an urgent need for an agricultural biomass pyrolysis processing device to address these issues. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an agricultural biomass pyrolysis treatment device to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: an agricultural biomass pyrolysis treatment device, including: a feed inlet, a pyrolysis kiln and a sealing seat, wherein a set of feed inlets for introducing biomass materials to be pyrolyzed is provided at the lower end of the feed inlet, and a set of storage boxes for storing biomass materials is provided on the left side of the feed inlet.

[0005] The left side of the storage box is provided with a set of feeding channels for feeding biomass materials. The front cross-section of the feeding channel is an S-shaped structure, and the inside of the feeding channel is connected to the inside of the storage box. Inside the feeding channel is a set of feeding mechanisms for continuously feeding biomass materials. A set of discharging seats for discharging biomass materials is evenly distributed on the lower left side of the feeding channel. At the lower end of each set of discharging seats is a set of pyrolysis kilns for pyrolysis of biomass materials.

[0006] As a preferred embodiment, the pyrolysis kiln is provided with a set of doors on the front side to facilitate cleaning of its interior by workers, and each set of pyrolysis kiln is provided with a set of flue gas outlets at the upper front end for discharging pyrolysis waste gas.

[0007] In a preferred embodiment, the upper end of several sets of flue gas inlets is provided with a set of flue gas pipes for discharging the flue gas from the interior of several sets of pyrolysis kilns. The lower right end of the flue gas pipes is provided with a set of connecting pipes for guiding the flue gas into the heat exchange components. In actual use, biomass raw materials are temporarily stored in the storage box after being fed through the feed inlet. They are then continuously transported to the distribution seat and evenly distributed to each pyrolysis kiln through the feeding mechanism in the S-shaped feeding channel. The pyrolysis kiln performs a pyrolysis reaction on the biomass at the critical temperature. The generated pyrolysis gas is collected through the flue gas inlet to the flue gas pipe, and then guided to the heat exchange components through the connecting pipe to recover waste heat. The flue gas then enters the denitrification box for purification treatment. The gas is discharged through the exhaust pipe by the pump and meets the emission standards. The pyrolysis char is discharged through the discharge seat. The crushed material storage pipe collects residual particles. The sealing seat ensures the airtightness of the system. The gas supply is regulated by the inlet valve to maintain the pyrolysis temperature through the gas supply pipe. The silo door facilitates the maintenance and cleaning of the kiln body.

[0008] In a preferred embodiment, the connecting pipe is fixed to the flue gas pipe by means of a flange, and the connecting pipe has a mirror L-shaped structure, with its interior communicating with the interior of the flue gas pipe. A set of heat exchange components for filtering biomass pyrolysis flue gas is provided on the left side of the connecting pipe, and several sets of water-cooled ring pipes for heat exchange of high-temperature flue gas are provided inside the heat exchange components.

[0009] In a preferred embodiment, the heat exchange component is provided with a set of internal conduits on the left side for communicating with the inside of the denitrification box. The internal conduits are provided with a set of denitrification boxes on the left side for performing denitrification on the flue gas. The denitrification box is provided with a set of SNCR denitrification equipment for adsorbing and denitrifying particulate matter inside the flue gas.

[0010] In a preferred embodiment, the left side of the denitrification box is provided with a set of pumps for pressurizing and extracting flue gas, and the left side of the pumps is provided with a set of exhaust pipes for discharging biomass pyrolysis flue gas. Each pyrolysis kiln is provided with a furnace body for pyrolysis of the biomass inside.

[0011] In a preferred embodiment, a set of gas pipes for introducing gas is provided on the rear side of several sets of furnace bodies, and a set of external gas valves for introducing external gas is provided on the left side of the gas pipes. A set of sealing seats for discharging biomass pyrolysis fragments is provided at the lower end of each set of furnace bodies.

[0012] In a preferred embodiment, the lower end of the sealing seat is provided with a set of discharge seats for connecting to the inside of the crushed material storage pipe. The lower end of several sets of discharge seats is provided with a set of crushed material storage pipes for storing biomass pyrolysis crushed materials. In actual use, the flue gas generated by biomass pyrolysis is introduced into the heat exchange component through a mirrored L-shaped connecting pipe connected to the flue gas pipe flange. After being cooled by the water-cooled ring pipe, it is transported to the denitrification box by the inner conduit for SNCR denitrification and particulate matter adsorption. The purified flue gas is pressurized by the pump and discharged through the exhaust pipe in compliance with standards. The furnace body is connected to the external gas valve through the gas pipe to maintain the pyrolysis temperature. The pyrolysis residue falls into the crushed material storage pipe for centralized collection through the sealing seat and discharge seat. The L-shaped pipe design optimizes the airflow path. Water-cooled heat exchange and SNCR technology realize the cascade treatment of flue gas, forming a continuous process of biomass pyrolysis, biomass purification and biomass slag discharge.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows: After the biomass raw materials are temporarily stored in the storage box through the feed inlet, they are continuously transported to the distribution seat and evenly distributed to each pyrolysis kiln through the feeding mechanism in the S-shaped feeding channel. The pyrolysis kiln pyrolyzes the biomass at the critical temperature. The generated pyrolysis gas is collected in the flue gas pipe through the flue gas inlet and introduced into the heat exchange component through the connecting pipe to recover the waste heat. The flue gas then enters the denitrification box for purification treatment. The qualified gas is discharged through the exhaust pipe by the pump. The pyrolysis char is discharged through the discharge seat. The crushed material storage pipe collects the residual particles. The sealing seat ensures the airtightness of the system. The gas supply is regulated by the inlet valve to maintain the pyrolysis temperature through the gas inlet valve. The silo door facilitates the maintenance and cleaning of the kiln body.

[0014] The flue gas generated from biomass pyrolysis is introduced into the heat exchange component through a mirrored L-shaped connecting pipe connected to the flue gas pipe flange. After being cooled by a water-cooled loop pipe, it is transported to the denitrification box by an inner conduit for SNCR denitrification and particulate matter adsorption. The purified flue gas is pressurized by a pump and discharged through the exhaust pipe in compliance with standards. The furnace body is connected to an external gas valve through a gas pipe to maintain the pyrolysis temperature. The pyrolysis residue falls into the crushed material storage pipe for centralized collection through a sealing seat and a discharge seat. The L-shaped pipe design optimizes the airflow path. Water-cooled heat exchange and SNCR technology realize the cascade treatment of flue gas, forming a continuous process of biomass pyrolysis, biomass purification and biomass slag discharge. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a right-angled front view schematic diagram of an agricultural biomass pyrolysis treatment device according to the present invention;

[0017] Figure 2 This is a top view of the left oblique rear side of the structure of an agricultural biomass pyrolysis treatment device according to the present invention;

[0018] Figure 3 This is a top view of the discharge seat and crushed material storage pipe on the left rear side of an agricultural biomass pyrolysis treatment device according to the present invention.

[0019] Figure 4 This is a bottom view of the inlet valve and sealing seat in an agricultural biomass pyrolysis treatment device according to the present invention.

[0020] In the diagram: 100-feed inlet, 110-storage bin, 120-feeding channel, 130-distribution seat, 140-pyrolysis kiln, 150-bin door, 160-flue gas pipe, 170-connecting pipe, 180-heat exchange component, 190-denitrification box, 200-pump, 210-exhaust pipe, 220-smoke guide port, 230-gas pipe, 240-inlet valve, 250-fragment storage pipe, 260-discharge seat, 270-sealing seat. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 As the first embodiment of this utility model:

[0023] An agricultural biomass pyrolysis treatment device includes: a feed inlet 100, a pyrolysis kiln 140 and a sealing seat 270. The lower end of the feed inlet 100 is provided with a set of feed inlets 100 for introducing biomass materials to be pyrolyzed, and the left side of the feed inlet 100 is provided with a set of storage boxes 110 for storing biomass materials.

[0024] A feeding channel 120 for feeding biomass materials is provided on the left side of the storage box 110. The front cross-section of the feeding channel 120 is an S-shaped structure, and the interior of the feeding channel 120 is connected to the interior of the storage box 110. A feeding mechanism for continuously feeding biomass materials is provided inside the feeding channel 120. A set of dispensing seats 130 for discharging biomass materials is evenly distributed on the lower left side of the feeding channel 120. A set of pyrolysis kilns 140 for pyrolysis of biomass materials is provided at the lower end of each dispensing seat 130.

[0025] A set of chamber doors 150 are provided on the front side of the pyrolysis kiln 140 to facilitate cleaning of its interior by staff. A set of flue gas outlets 220 are provided at the upper front side of each pyrolysis kiln 140 to discharge pyrolysis waste gas.

[0026] Several sets of flue gas inlets 220 are equipped with a flue gas pipe 160 at the upper end for discharging flue gas from the interior of several sets of pyrolysis kilns 140. A connecting pipe 170 is located at the lower right end of the flue gas pipe 160 for guiding the flue gas into the heat exchange component 180. In actual use, biomass raw materials are temporarily stored in the storage bin 110 after being fed through the feed inlet 100, and then continuously transported to the distribution seat 130 and evenly distributed to each pyrolysis kiln 140 via the feeding mechanism in the S-shaped feeding channel 120. The pyrolysis kiln 140 heats the biomass at the critical temperature. The pyrolysis reaction produces pyrolysis gas which is collected through flue gas inlet 220 to flue gas pipe 160, and then introduced into heat exchange component 180 through connecting pipe 170 to recover waste heat. The flue gas then enters denitrification box 190 for purification treatment, and is discharged as qualified gas through exhaust pipe 210 by pump 200. Pyrolysis char is discharged through discharge seat 260, residual particles are collected in crushed material storage pipe 250, sealing seat 270 ensures the airtightness of the system, and fuel supply is regulated by inlet valve 240 to maintain pyrolysis temperature through gas supply pipe 230. Its chamber door 150 facilitates kiln maintenance and cleaning.

[0027] Please see Figures 1-4 As a second embodiment of this utility model: based on the description in the above embodiments, the connecting pipe 170 and the flue gas pipe 160 are further connected and fixed by a flange, and the connecting pipe 170 has a mirror L-shaped structure, and its interior is interconnected with the interior of the flue gas pipe 160. A set of heat exchange components 180 for filtering biomass pyrolysis flue gas is provided on the left side of the connecting pipe 170, and several sets of water-cooled ring pipes for heat exchange of high-temperature flue gas are provided inside the heat exchange components 180.

[0028] The heat exchange component 180 has an inner conduit on the left side for communicating with the inside of the denitrification box 190. The denitrification box 190 is located on the left side of the inner conduit for performing denitrification on the flue gas. Inside the denitrification box 190, there is an SNCR denitrification device for adsorbing and denitrifying particulate matter inside the flue gas.

[0029] On the left side of the denitrification box 190, there is a set of pumps 200 for pressurizing and extracting flue gas. On the left side of the pumps 200, there is a set of exhaust pipes 210 for discharging the biomass pyrolysis flue gas. Each pyrolysis kiln 140 has a furnace body inside for pyrolysis of the biomass inside.

[0030] A set of gas pipes 230 for introducing gas is provided on the rear side of several sets of furnace bodies. A set of external gas valves for introducing external gas is provided on the left side of the gas pipes 230. A set of sealing seats 270 for discharging biomass pyrolysis fragments is provided at the lower end of each set of furnace bodies.

[0031] The lower end of the sealing seat 270 is provided with a set of discharge seats 260 for connecting to the inside of the crushed material storage pipe 250. The lower end of several sets of discharge seats 260 is provided with a set of crushed material storage pipes 250 for storing biomass pyrolysis crushed materials. In actual use, the flue gas generated by biomass pyrolysis is introduced into the heat exchange component 180 through the flange connection of the mirror L-shaped connecting pipe 170 and the flue gas pipe 160. After being cooled by the water-cooled ring pipe, it is transported to the denitrification box 190 by the inner conduit for SNCR denitrification and particulate matter adsorption. The purified flue gas is pressurized by the pump 200 and discharged through the exhaust pipe 210 to meet the standards. The furnace body is connected to the external gas valve through the gas pipe 230 to maintain the pyrolysis temperature. The pyrolysis residue falls into the crushed material storage pipe 250 for centralized collection through the sealing seat 270 and the discharge seat 260. The L-shaped pipe design optimizes the airflow path. The water-cooled heat exchange and SNCR technology realize the stepped treatment of flue gas, forming a continuous process of biomass pyrolysis, biomass purification and biomass slag discharge.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An agricultural biomass pyrolysis treatment device, comprising: The feed inlet (100), pyrolysis kiln (140) and sealing seat (270) are characterized in that: a set of storage boxes (110) for storing biomass materials are provided on the left side of the feed inlet (100); The storage bin (110) has a feeding channel (120) on the left side for feeding biomass materials. The front cross-section of the feeding channel (120) is an S-shaped structure, and the inside of the feeding channel (120) is connected to the inside of the storage bin (110). The feeding channel (120) has a feeding mechanism for continuously feeding biomass materials. The lower left side of the feeding channel (120) has a set of distributing seats (130) for discharging biomass materials. The lower end of each distributing seat (130) has a set of pyrolysis kilns (140) for pyrolysis of biomass materials.

2. The agricultural biomass pyrolysis treatment device according to claim 1, characterized in that: The pyrolysis kiln (140) is provided with a set of doors (150) on the front side to facilitate cleaning of its interior by staff. Each set of pyrolysis kilns (140) is provided with a set of flue gas outlets (220) at the upper front end for discharging pyrolysis waste gas.

3. The agricultural biomass pyrolysis treatment device according to claim 2, characterized in that: The upper end of several sets of flue gas inlets (220) is provided with a set of flue gas pipes (160) for discharging the flue gas inside several sets of pyrolysis kilns (140), and the lower right end of the flue gas pipes (160) is provided with a set of connecting pipes (170) for guiding the flue gas into the heat exchange component (180).

4. The agricultural biomass pyrolysis treatment device according to claim 3, characterized in that: The connecting pipe (170) is connected and fixed to the flue gas pipe (160) by a flange. The connecting pipe (170) has a mirror L-shaped structure and its interior is connected to the interior of the flue gas pipe (160). A set of heat exchange components (180) for filtering biomass pyrolysis flue gas is provided on the left side of the connecting pipe (170). The heat exchange components (180) have several sets of water-cooled ring pipes for heat exchange of high-temperature flue gas inside.

5. The agricultural biomass pyrolysis treatment device according to claim 4, characterized in that: The heat exchange component (180) has a set of internal conduits on the left side for communicating with the inside of the denitrification box (190). The denitrification box (190) for denitrifying the flue gas is located on the left side of the internal conduits. The denitrification box (190) is equipped with a set of SNCR denitrification equipment for adsorbing and denitrifying particulate matter inside the flue gas.

6. The agricultural biomass pyrolysis treatment device according to claim 5, characterized in that: The denitrification box (190) is provided with a set of pumps (200) on the left side for pressurizing and extracting flue gas. The pumps (200) are provided with a set of exhaust pipes (210) on the left side for discharging biomass pyrolysis flue gas. Each pyrolysis kiln (140) is provided with a furnace body for pyrolysis of the biomass inside.

7. The agricultural biomass pyrolysis treatment device according to claim 6, characterized in that: A set of gas pipes (230) for introducing gas is provided on the rear side of several sets of furnace bodies. A set of external gas valves for introducing external gas is provided on the left side of the gas pipes (230). A set of sealing seats (270) for discharging biomass pyrolysis fragments is provided at the lower end of each set of furnace bodies.

8. The agricultural biomass pyrolysis treatment device according to claim 7, characterized in that: The lower end of the sealing seat (270) is provided with a set of discharge seats (260) for connecting with the inside of the crushed material storage pipe (250), and the lower end of several sets of discharge seats (260) is provided with a set of crushed material storage pipes (250) for storing biomass pyrolysis crushed materials.

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