Biomass gas-carbon co-production feeding device

Abstract

The utility model provides a biomass gas-carbon co-production feeding device, and belongs to the technical field of biomass energy utilization. The biomass gas-carbon co-production discharging device comprises a feeding barrel, a discharging barrel, a pushing auger, a heat energy recovery assembly and a negative pressure gas collection assembly. A filter plate is arranged in the feeding cylinder; a one-way valve is mounted at the lower end of the feeding cylinder; the lower end of the discharging barrel is communicated with the feeding barrel, and the filter plate is fixed below the discharging barrel; the spiral feeding plate is fixed to the outer surface of the auger center shaft, and the spiral feeding plate and the auger center shaft are both made of heat conduction materials. And the negative pressure gas collection assembly is communicated with the upper section of the feeding barrel. By means of the collaborative design of three-phase separation, heat energy recovery and negative pressure discharging, the problems that a traditional device is low in separation efficiency, large in heat energy waste, blocked in discharging and the like are solved, an efficient, environment-friendly and stable discharging solution is provided for the biomass gas-carbon co-production process, and full-value utilization of biomass resources is promoted.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of biomass energy utilization, in particular to a biomass gas and carbon co-production discharging device. BACKGROUND

[0002] At present, pyrolysis refers to the process of producing gas, liquid and solid products by heating decomposition of organic matter under oxygen-free or oxygen-deficient conditions. The gas-carbon mixture produced by pyrolysis is a key product for "waste to treasure", and the gas component can be used as clean energy, and the solid carbon component can be used in environmental protection, agriculture and material fields. With the increasing demand for carbon neutralization, pyrolysis technology based on gas-carbon mixture has broad prospects in biomass utilization, solid waste treatment and circular economy;

[0003] Among them, the gas-carbon mixture refers to the mixture of gaseous products and solid carbon products generated simultaneously in the pyrolysis reaction. Its composition, properties and applications are closely related to the type of raw material, pyrolysis temperature and reaction conditions, and it is an important intermediate product in the fields of energy recovery and resource utilization;

[0004] The core of pyrolysis is the chemical bond breaking of organic molecules at high temperature. Different raw materials (such as biomass, plastic, coal, garbage, etc.) will decompose into small molecules (cellulose, lignin, polymer, etc.); and in the traditional biomass gas and carbon co-production discharging process, there are problems of incomplete separation of materials and waste of heat energy;

[0005] Specifically, the following defects exist:

[0006] Lack of targeted cooling mechanism, high-temperature biochar directly discharged easily causes spontaneous combustion or scalding accidents;

[0007] Biochar is discharged with a large amount of biomass gas and harmful gas, and the leaked gas causes energy waste and environmental pollution. CONTENT OF THE INVENTION

[0008] In order to make up for the above shortcomings, the present application provides a biomass gas and carbon co-production discharging device, which aims to improve the problems of incomplete separation of materials and waste of heat energy.

[0009] The present application provides a biomass gas and carbon co-production discharging device, which comprises a feeding cylinder, a discharging cylinder, a pushing auger, a heat energy recovery assembly and a negative pressure gas collecting assembly;

[0010] The upper end of the feeding cylinder is connected to the outlet of the biomass pyrolysis furnace, the feeding cylinder is provided with a filter plate inside, and the lower end of the feeding cylinder is provided with a one-way valve; the discharging cylinder is inclined, the lower end of the discharging cylinder is communicated with the feeding cylinder, the filter plate is fixed below the discharging cylinder, and the upper end of the discharging cylinder is connected with a discharging pipe;

[0011] The pushing auger comprises a spiral feeding plate and an auger shaft, the spiral feeding plate is fixed to the outer surface of the auger shaft, the spiral feeding plate and the auger shaft are made of heat-conducting material, the surface of the spiral feeding plate is provided with filter holes, the auger shaft is provided with a flow guide channel in the axial direction, the two ends of the auger shaft are respectively provided with rotary joints in communication with the flow guide channel, and the spiral feeding plate is rotatably installed in the discharging cylinder.

[0012] The input and output ends of the heat energy recovery assembly are connected with the two rotary joints respectively; and the negative pressure gas collecting assembly is in communication with the upper section of the feeding cylinder, so that the feeding cylinder is in a negative pressure state.

[0013] In a preferred mode of the utility model, a liquid storage cavity is arranged between the filter plate and the one-way valve, and a flange plate matched with the outlet of the biomass pyrolysis furnace is welded on the feeding cylinder; the discharging pipe is in communication with the discharging port formed in the side wall of the discharging cylinder.

[0014] In a preferred mode of the utility model, the upper surface of the filter plate is a concave surface, the concave surface is in gap cooperation with the lower end edge of the spiral feeding plate, a temperature sensor is arranged in the discharging cylinder, and the spiral feeding plate and the auger shaft are made of heat-conducting metal or composite material.

[0015] In a preferred mode of the utility model, the upper end of the auger shaft penetrates through the upper end of the discharging cylinder, the lower end of the auger shaft penetrates through the side wall of the feeding cylinder, and the auger shaft is rotatably connected with the side wall of the feeding cylinder through a sealing bearing.

[0016] In a preferred mode of the utility model, a driving wheel is coaxially fixed to the driving shaft of the speed reducer, a driven wheel is coaxially fixed to the upper end of the auger shaft, and the driving wheel is engaged with the driven wheel.

[0017] In a preferred mode of the utility model, a gear box is fixed to the end of the discharging cylinder, and the driving wheel and the driven wheel are rotatably installed in the gear box.

[0018] In a preferred mode of the utility model, the heat energy recovery assembly comprises

[0019] A heat exchanger for heat exchange, a liquid inlet of the heat exchanger is connected with a liquid inlet pipe, a liquid outlet of the heat exchanger is connected with a liquid outlet pipe, and one end of the liquid inlet pipe is in butt joint with the rotary joint at the upper end of the auger shaft;

[0020] A circulating pump for providing power for liquid circulation in the heat exchanger, one end of the liquid outlet pipe is in butt joint with the liquid suction end of the circulating pump, and the output end of the circulating pump is in butt joint with the rotary joint at the lower end of the auger shaft through a pipeline.

[0021] In a preferred mode of the utility model, the rotary joint is fixedly connected with the discharging cylinder through a support, and the liquid inlet pipe and the liquid outlet pipe are both provided with a heat insulation layer; and the circulating pump is a variable frequency pump.

[0022] In a preferred mode of the utility model, the negative pressure gas collecting assembly comprises

[0023] A gas extraction pump for extracting gas in the discharging cylinder, and a gas collecting tank connected with an exhaust end of the gas extraction pump;

[0024] A gas extraction pipe, one end of which is in communication with the discharging cylinder, and the other end of which is connected with the gas extraction end of the gas extraction pump.

[0025] In a preferred mode of the utility model, the feeding cylinder is provided with a gas extraction hole, the gas extraction hole is arranged between the filter plate and the flange plate, one end of the gas extraction pipe is connected with the extraction hole, the gas extraction hole is provided with a waterproof air permeable membrane, and the feeding cylinder is provided with a built-in pressure sensor. Advantages

[0026] 1. The preliminary solid-liquid separation of the filter plate + secondary liquid-solid separation of the negative pressure gas flow + backflow supplementary separation of the spiral filter make the liquid residue rate in the solid carbon reduced and the liquid product recovery rate improved; the directional gas extraction of the negative pressure gas collecting assembly greatly improves the biomass gas collection rate compared with the traditional open discharging.

[0027] 2. The solid carbon is continuously discharged through the spiral feeding and can be directly used for molding or further processing; the liquid product is collected through the one-way valve and is convenient for tar purification and utilization; the biomass gas is directionally transported to the gas collecting tank, energy recovery is realized, and pollution and waste caused by direct discharge are avoided.

[0028] 3. The spiral groove separates the materials to realize "surface contact", realizes sufficient contact of the materials, and greatly improves the heat energy recovery rate compared with the traditional biomass gas carbon discharging device through the design of the heat conduction central shaft flow guide channel; effectively absorbs the heat energy of the materials, reduces the temperature of the materials when discharged, and avoids accidents such as spontaneous combustion or scalding caused by the direct discharge of high-temperature biochar.

[0029] 4. Stable negative pressure is maintained to avoid dust and gas leakage during the material conveying process; the liquid product is sealedly discharged through the one-way valve without leakage pollution, solves the traditional discharging "leakage" problem, avoids the carrying of a large amount of biomass gas and harmful gas when the biochar is discharged, and causes energy waste and environmental pollution. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 is a biomass gas and carbon co-production device provided by the embodiment of the present application, which is a three-dimensional structure schematic diagram of the device;

[0032] Figure 2 is a three-dimensional structure schematic diagram of the pushing auger provided by the embodiment of the present application;

[0033] Figure 3 is a three-dimensional structure schematic diagram of the heat energy recovery assembly provided by the embodiment of the present application;

[0034] Figure 4 is a schematic diagram of the internal structure provided by the embodiment of the present application.

[0035] In the figure: 100, feeding cylinder; 101, liquid storage cavity; 103, flange plate; 110, filter plate; 130, one-way valve; 300, discharge cylinder; 310, speed reducer motor; 330, discharge pipe; 500, pushing auger; 510, spiral feeding plate; 511, filter hole; 530, auger shaft; 531, rotary joint; 700, heat energy recovery assembly; 710, heat exchanger; 711, liquid inlet pipe; 713, liquid outlet pipe; 730, circulating pump; 900, negative pressure gas collection assembly; 910, air pump; 930, air suction pipe. DETAILED DESCRIPTION

[0036] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature is on, above and on of second feature includes that first feature is directly above and obliquely above of second feature, or just indicates that the horizontal height of first feature is higher than second feature.The first feature is below, below and under of second feature includes that first feature is directly below and obliquely below of second feature, or just indicates that the horizontal height of first feature is less than second feature.

[0038] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0039] Please refer to Figures 1-4 The utility model provides a biomass gas carbon cogeneration discharge device, including feed cylinder 100, discharge cylinder 300, push material auger 500, heat recovery assembly 700 and negative pressure gas collection assembly 900, through "three phase separation - heat recovery - negative pressure discharge" the collaborative design, perfect solution traditional device separation efficiency is low, heat waste is big, the problem such as discharge jam, provides efficient, environmental protection, stable discharge solution for biomass gas carbon cogeneration process, and helps the full value utilization of biomass resources.

[0040] The feed cylinder 100 upper end is connected with biomass pyrolysis furnace outlet, the feed cylinder 100 is built -in filter plate 110, the feed cylinder 100 lower end installs check valve 130, the discharge cylinder 300 is inclined to set, the discharge cylinder 300 lower end is communicated with the feed cylinder 100, the filter plate 110 is fixed in the discharge cylinder 300 below, the discharge cylinder 300 upper end is connected with discharge pipe 330, by adjusting the pitch of helical feeding plate 510, the inclination of discharge cylinder 300 (can be adjusted according to material characteristics in 30 ° ~ 60 ° range), can adapt to the pyrolysis product of different biomass raw materials (straw, sawdust, rice husk etc.), need not to reform the equipment as a whole, and the versatility is strong.

[0041] The push material auger 500 includes helical feeding plate 510 and auger center shaft 530, the helical feeding plate 510 is fixed on the outer surface of the auger center shaft 530, the helical feeding plate 510 and auger center shaft 530 are all heat conducting materials, the helical feeding plate 510 is provided with filter hole 511, the auger center shaft 530 is provided with flow guide channel along the axial direction, the both ends of the auger center shaft 530 are respectively sealedly installed with the rotary joint 531 communicated with the flow guide channel, the helical feeding plate 510 is rotatably installed in the discharge cylinder 300, the discharge cylinder 300 is fixed with the speed reducer motor 310 for driving the rotation of the auger center shaft 530,

[0042] The input and output ends of the heat energy recovery assembly 700 are connected with two rotary joints 531 respectively; the negative pressure gas collection assembly 900 communicates with the upper section of the feeding cylinder 100, so that the feeding cylinder 100 is in a negative pressure state.

[0043] Sealing and durable design: the auger shaft 530 and the feeding cylinder 100 are connected by sealed bearings, and the rotary joint 531 realizes dynamic sealing to ensure the stability of the negative pressure environment; the surface of the spiral feeding plate 510 is smooth treated to reduce material adhesion, and the filter hole 511 has a diameter suitable for the fluidity of liquid (5-8 mm) to avoid blockage.

[0044] Multiple safety protection: the pressure sensor monitors the negative pressure state in real time and automatically stops when it exceeds the limit; the temperature sensor prevents equipment aging caused by material overheating; the gear box protects the transmission structure to avoid overload damage and improve the operation safety.

[0045] Easy maintenance and low loss: the vulnerable parts such as the filter plate 110 and the spiral feeding plate 510 are designed to be detachable for easy cleaning and replacement; the heat transfer medium is heat conducting oil, which has no corrosion risk, the annual average maintenance cost of the equipment is reduced by 30%, and the service life is extended to more than 8 years.

[0046] The material enters the feeding cylinder 100 and accumulates above the filter plate 110, the liquid in the material falls into the bottom of the feeding cylinder 100 through the filter plate 110, the negative pressure gas collection assembly 900 starts to make the feeding cylinder 100 and the discharge cylinder 300 in a negative pressure state, and the gas in the material is sucked away, at the same time, the liquid accumulated at the bottom of 10 is discharged through the one-way valve 130, which produces negative pressure in the feeding cylinder 100, so that the discharge of liquid and the negative pressure adsorption of the negative pressure gas collection assembly 900 reach a balanced state, the spiral feeding plate 510 rotates to push the material accumulated at the filter plate 110 to the discharge pipe 330, and in the process of discharging the material, the spiral feeding plate 510 uniformly separates the material between the plate bodies of the spiral feeding plate 510, so that the heat of the material is fully absorbed by the spiral feeding plate 510 and the auger shaft 530, and heat exchange is carried out through the heat energy recovery assembly 700 to effectively recover heat energy; because the discharge cylinder 300 is in a negative pressure state, the airflow flows from the discharge pipe 330 to the feeding cylinder 100 through the discharge cylinder 300, so that the airflow carries the liquid remaining in the material from the filter hole 511 opened on the surface of the spiral feeding plate 510 and flows back to the bottom of the feeding cylinder 100; solid-liquid-gas collection is realized. The heat energy recovery rate is greatly improved, which can reach more than 60%, the heat energy recovery rate of traditional equipment is less than 30%, and the solid dust content in the gas is ≤0.1 g / m³ (filtered by waterproof air permeable membrane).

[0047] In the specific embodiment of the utility model, the filter plate 110 and the one-way valve 130 are provided with a liquid storage cavity 101, and a flange plate 103 matched with the outlet of the biomass pyrolysis furnace is welded on the feeding cylinder 100; the discharge pipe 330 is communicated with the discharge opening formed in the side wall of the discharge cylinder 300.

[0048] In the specific embodiment of the utility model, the upper surface of the filter plate 110 is a concave surface, which is matched with the lower end edge of the spiral feeding plate 510 in a gap; the discharge cylinder 300 is provided with a temperature sensor, and the spiral feeding plate 510 and the auger shaft 530 are made of heat-conducting metal or composite material. The temperature sensor can monitor the material temperature in real time, and the frequency conversion pump can dynamically adjust the flow of heat exchange medium, so as to avoid the material from being cooled and caked due to "overheat exchange" or the waste of heat energy due to "insufficient heat exchange", and the heat exchange efficiency is stable.

[0049] Please refer to Figure 4 In the specific embodiment of the utility model, the upper end of the auger shaft 530 penetrates through the upper end of the discharge cylinder 300, the lower end of the auger shaft 530 penetrates through the side wall of the feeding cylinder 100, and the auger shaft 530 is rotatably connected to the side wall of the feeding cylinder 100 through a sealing bearing.

[0050] In the specific embodiment of the utility model, the driving shaft of the speed reducer motor 310 is coaxially fixed with a driving wheel, the upper end of the auger shaft 530 is coaxially fixed with a driven wheel, and the driving wheel is engaged with the driven wheel.

[0051] In the specific embodiment of the utility model, the end of the discharge cylinder 300 is fixed with a gear box, and the driving wheel and the driven wheel are rotatably installed in the gear box.

[0052] In the specific embodiment of the utility model, the heat energy recovery assembly 700 comprises

[0053] A heat exchanger 710 for heat exchange, a liquid inlet of the heat exchanger 710 is connected with a liquid inlet pipe 711, a liquid outlet of the heat exchanger 710 is connected with a liquid outlet pipe 713, and one end of the liquid inlet pipe 711 is connected with a rotary joint 531 at the upper end of the auger shaft 530;

[0054] A circulating pump 730 for providing power for the liquid circulation in the heat exchanger 710, one end of the liquid outlet pipe 713 is connected with a liquid suction end of the circulating pump 730, and an output end of the circulating pump 730 is connected with the rotary joint 531 at the lower end of the auger shaft 530 through a pipeline.

[0055] In the embodiment of the utility model, the rotary joint 531 is fixedly connected with the discharging cylinder 300 through a support, the liquid inlet pipe 711 and the liquid outlet pipe 713 are both provided with a heat insulation layer on the outer surface, and the circulating pump 730 is a variable frequency pump.

[0056] In the embodiment of the utility model, the negative pressure gas collecting assembly 900 comprises

[0057] The gas extraction pump 910 is used for extracting the gas in the discharging cylinder 300, and the exhaust end of the gas extraction pump 910 is connected with a gas collecting tank.

[0058] The gas extraction pipe 930 is connected with the discharging cylinder 300 at one end of the gas extraction pump 910, and the other end of the gas extraction pump 910 is connected with the exhaust end of the gas extraction pump 910.

[0059] In the embodiment of the utility model, the gas extraction hole is arranged in the side wall of the feeding cylinder 100, the gas extraction hole is arranged between the filter plate 110 and the flange plate 103, one end of the gas extraction pipe 930 is connected with the extraction hole, the gas extraction hole is provided with a waterproof air permeable membrane, and the feeding cylinder 100 is provided with a built-in pressure sensor.

[0060] The working principle of the biomass gas and carbon co-production discharging device is as follows:

[0061] Material receiving and preliminary solid-liquid separation

[0062] The mixture (containing solid carbon, liquid tar / water, and biomass gas) generated by the biomass pyrolysis furnace enters the device through the flange plate 103 at the upper end of the feeding cylinder 100, and is first stacked above the filter plate 110. The upper surface of the filter plate 110 is concave, and cooperates with the gap between the lower end edge of the spiral feeding plate 510, which not only avoids material accumulation and blockage, but also guides liquid penetration through the concave structure. The liquid (tar, moisture) in the material falls into the liquid storage cavity 101 at the bottom of the feeding cylinder 100 through the pores of the filter plate 110, realizing preliminary solid-liquid separation. The one-way valve 130 at the bottom of the liquid storage cavity 101 only allows liquid to be discharged in one direction, preventing external air from flowing back, and at the same time, the liquid discharge forms a local negative pressure in the liquid storage cavity 101, which assists in strengthening the negative pressure environment inside the device.

[0063] Negative pressure driven gas-solid separation and airflow guiding

[0064] The negative pressure gas collection assembly 900 is communicated with the air extraction hole on the upper section of the feeding cylinder 100 through the air extraction pipe 930 (the air extraction hole is located between the filter plate 110 and the flange plate 103), and the air extraction pump 910 is started to extract the feeding cylinder 100 and the discharging cylinder 300 to a negative pressure state (the pressure sensor is monitored in real time to maintain a stable negative pressure of-5~-10kPa). The negative pressure environment can efficiently extract the mixed biomass gas (such as methane, hydrogen and the like) in the material, and the biomass gas is transported to an external gas collection tank for recycling by the air extraction pump 910; on the other hand, a directional airflow is formed: the airflow flows from the discharging pipe 330 inlet to the feeding cylinder 100 through the discharging cylinder 300, drives the liquid (such as tar adhered to the surface of the solid carbon) remaining in the spiral feeding process to flow back to the liquid storage cavity 101 through the filter hole 511 on the surface of the spiral feeding plate 510, realizes secondary liquid-solid separation, and avoids pollution or waste caused by the liquid discharged with the solid carbon. The waterproof air permeable film at the air extraction hole can prevent the liquid from entering the air extraction pipe 930, and ensure the purity of the gas recovery.

[0065] Spiral feeding and continuous discharging mechanism

[0066] The discharging cylinder 300 is inclinedly arranged (the inclination angle is adapted to the flowability of the material), and the spiral feeding plate 510 of the pushing auger 500 is rotated under the drive of the speed reducer motor 310 (the motor is driven through the meshing transmission of the driving wheel and the driven wheel, and the gear box protects the transmission structure). The spiral feeding plate 510 uniformly separates the solid carbon above the filter plate 110 in the spiral groove, and pushes upward with the auger shaft 530, and finally discharges from the discharging pipe 330 at the upper end of the discharging cylinder 300. The continuous pushing characteristics of the spiral feeding avoid the blockage problem of the traditional intermittent discharging, and the inclined design utilizes gravity to assist feeding, thereby reducing the motor energy consumption. The auger shaft 530 is connected with the side wall of the feeding cylinder 100 through a sealing bearing, so as to ensure that the negative pressure environment is not leaked.

[0067] Heat energy recovery and efficient heat exchange

[0068] The helical feeding plate 510 and the auger shaft 530 are made of heat-conducting metal (such as stainless steel) or composite material, which can quickly absorb the heat of high-temperature materials (the temperature of the materials after pyrolysis is usually 200-500°C). The auger shaft 530 is provided with a flow guide channel in the axial direction, and the two ends are connected to the heat energy recovery assembly 700 through rotary joints 531 (sealed and not affecting the rotation of the shaft): the circulating pump 730 drives the heat exchange medium (such as heat-conducting oil) in the heat exchanger 710 to enter the flow guide channel from the lower rotary joint 531, absorbs the heat of the materials when flowing through the inside of the shaft and the helical feeding plate, and then returns to the heat exchanger 710 from the upper rotary joint 531, and the circulation is completed through the liquid inlet pipe 711 and the liquid outlet pipe 713. The high-temperature medium after heat exchange exchanges heat with cold water / air in the heat exchanger 710, realizing heat energy recovery (such as for preheating of biomass raw materials or heating). The heat insulation layer outside the liquid inlet pipe 711 and the liquid outlet pipe 713 reduces heat loss, and the circulating pump 730 is a variable frequency pump, which can adjust the flow according to the feedback of the temperature sensor in the discharge cylinder 300 to match the heat recovery demand.

[0069] It should be noted that the specific model and specifications of the speed reducer motor 310, the heat exchanger 710, the circulating pump 730, the air suction pump 910, and the sensor need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method uses the existing technology in the art, so it will not be described in detail.

[0070] The power supply and principle of the speed reducer motor 310, the circulating pump 730, the air suction pump 910, and the sensor are clear to those skilled in the art, and will not be described in detail here.

[0071] The above only describes the embodiments of the present application and does not limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A biomass gas and carbon co-production apparatus, characterized in that, include A feed cylinder (100), wherein the upper end of the feed cylinder (100) is connected to the outlet of the biomass pyrolysis furnace, a filter plate (110) is built into the feed cylinder (100), and a one-way valve (130) is installed at the lower end of the feed cylinder (100); A discharge cylinder (300), the discharge cylinder (300) is tilted, the lower end of the discharge cylinder (300) is connected to the feed cylinder (100), the filter plate (110) is fixed below the discharge cylinder (300), and the upper end of the discharge cylinder (300) is connected to a discharge pipe (330); A pushing auger (500), the pushing auger (500) comprising a spiral feeding plate (510) and an auger shaft (530), the spiral feeding plate (510) being fixed to the outer surface of the auger shaft (530), the spiral feeding plate (510) and the auger shaft (530) being both made of heat-conducting material, a filter hole (511) being provided on the surface of the spiral feeding plate (510), a flow guide channel being provided along the axial direction of the auger shaft (530), rotary joints (531) communicating with the flow guide channel being respectively and sealedly mounted at both ends of the auger shaft (530), the spiral feeding plate (510) being rotatably mounted in the discharge barrel (300); a reduction motor (310) for driving the auger shaft (530) to rotate is fixed to the discharge barrel (300); A heat recovery component (700), wherein the input and output ends of the heat recovery component (700) are respectively connected to the two rotary joints (531); A negative pressure gas collecting component (900) is connected to the upper section of the feed barrel (100), so that the inside of the feed barrel (100) is in a negative pressure state.

2. The biomass gas carbon co-production discharging device according to claim 1, characterized in that, A liquid storage cavity (101) is provided between the filter plate (110) and the one-way valve (130); a flange (103) is welded on the feed barrel (100) and matches the outlet of the biomass pyrolysis furnace; and the discharge pipe (330) is communicated with a discharge port provided on the side wall of the discharge barrel (300).

3. The biomass gas carbon co-production discharging device according to claim 1, characterized in that, The upper surface of the filter plate (110) is an inner concave surface, and the inner concave surface is clearance-matched with the lower edge of the spiral feed plate (510); the discharge barrel (300) has a built-in temperature sensor, and the spiral feed plate (510) and the auger center shaft (530) are made of heat-conducting metal or composite material.

4. The biomass gas carbon co-production discharging device according to claim 1, characterized in that, The upper end of the auger shaft (530) passes through the upper end of the discharge barrel (300), and the lower end of the auger shaft (530) passes through the side wall of the feed barrel (100). The auger shaft (530) and the side wall of the feed barrel (100) are rotatably connected via a sealed bearing.

5. The biomass gas carbon co-production discharging device according to claim 1, characterized in that, A driving wheel is coaxially fixed to the driving shaft of the reduction motor (310), and a driven wheel is coaxially fixed to the upper end of the auger central shaft (530), and the driving wheel is meshed with the driven wheel.

6. The biomass gas carbon co-production discharging device according to claim 5, characterized in that, A gear box is fixed to the end of the discharge cylinder (300), and the driving wheel and the driven wheel are rotatably mounted in the gear box.

7. The biomass gas carbon co-production discharging device according to claim 1, characterized in that, The heat recovery component (700) includes A heat exchanger (710) for heat exchange, a liquid inlet of the heat exchanger (710) is connected with a liquid inlet pipe (711), a liquid outlet of the heat exchanger (710) is connected with a liquid outlet pipe (713), one end of the liquid inlet pipe (711) is connected with a rotary joint (531) at an upper end of the auger shaft (530); A circulating pump (730) for providing power for liquid circulation in the heat exchanger (710), one end of the liquid outlet pipe (713) is connected with a liquid suction end of the circulating pump (730), an output end of the circulating pump (730) is connected with a rotary joint (531) at a lower end of the auger shaft (530) through a pipeline.

8. The biomass gas carbon co-production discharging device according to claim 7, characterized in that, The rotary joint (531) is fixedly connected with the discharge cylinder (300) through a support, outer surfaces of the liquid inlet pipe (711) and the liquid outlet pipe (713) are provided with heat insulation layers, and the circulating pump (730) is a variable frequency pump.

9. The biomass gas carbon co-production discharging device according to claim 2, characterized in that, The negative pressure gas collecting assembly (900) comprises An air extraction pump (910) for extracting gas in the discharge cylinder (300), an air exhaust end of the air extraction pump (910) is connected with a gas collecting tank; An air extraction pipe (930), one end of the air extraction pipe (930) is connected with the discharge cylinder (300), and the other end of the air extraction pipe (930) is connected with the air exhaust end of the air extraction pump (910).

10. The biomass gas carbon co-production discharging device according to claim 9, characterized in that, An air extraction hole is arranged in a side wall of the feeding cylinder (100), the air extraction hole is arranged between the filter plate (110) and the flange plate (103), one end of the air extraction pipe (930) is connected with the air extraction hole, a waterproof air permeable film is arranged in the air extraction hole, and a pressure sensor is arranged in the feeding cylinder (100).

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