Biomass pyrolytic carbon gas co-production equipment

Abstract

The invention discloses biomass pyrolytic carbon gas co-production equipment, and relates to the technical field of biomass resource reutilization, the biomass pyrolytic carbon gas co-production equipment comprises a pyrolyzing furnace, a dust remover, a spray tower purifier and collection equipment which are sequentially connected through pipelines; the pyrolyzing furnace comprises a furnace body, a furnace cover and a discharging device arranged at the bottom of the furnace body, a supporting pile casing is installed in the furnace body, two fire grates are movably assembled in the supporting pile casing, a plurality of positioning balls are evenly arranged on the edges of the fire grates, a plurality of inclined grooves matched with the positioning balls are formed in the inner wall of the supporting pile casing, and the inclined grooves are matched with the positioning balls. The inclined grooves matched with the positioning balls on the two fire grates are symmetrically arranged up and down, when the supporting protection cylinder rotates, the positioning balls can be squeezed to slide in the inclined grooves, at the moment, the two fire grates can be far away from each other, the hole diameters in the upper fire grate and the lower fire grate are not matched in an overlapped mode, and the hole diameters through which opposite biomass charcoal can pass can be increased; therefore, falling and discharging are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of biomass resource recycling, and more specifically, to a biomass pyrolysis carbon gas cogeneration device. Background Art

[0002] Biomass includes various types of crop straw and other agricultural and forestry residual wastes, which is a clean renewable energy. Biomass pyrolysis refers to the thermal degradation process of biomass in which liquid, gas and solid products are produced under anaerobic or anoxic conditions. Biomass pyrolysis technology is an important way to utilize biomass.

[0003] In order to make full use of the products in the biomass pyrolysis process, the biomass pyrolysis multi-product process is currently widely used to maximize the benefits of solid, liquid and gas products and make rational use of biomass resources. The Chinese invention patent with authorization announcement number CN106947501B discloses a method for producing biomass pyrolysis charcoal gas oil liquid to solve the problems of poor continuity, long carbonization time and low efficiency in the prior art. In this invention, the material needs to be placed on the grate for pyrolysis when entering the furnace body. The biomass charcoal produced after pyrolysis is released to the bottom of the furnace body. During the process, the biomass charcoal is often blocked in the grate, which makes it difficult to discharge the biomass charcoal.

[0004] In the prior art, ensuring the stable feeding of biochar in the pyrolysis furnace is also one of the important steps in the production process. Usually a scraper is provided to clean the biochar on the grate, but the aperture size of the commonly used grate is fixed, and the biochar stuck in the aperture is difficult to be cleaned away by the scraper. Based on the above problems, we provide a biomass pyrolysis carbon gas cogeneration equipment. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a biomass pyrolysis carbon gas cogeneration device.

[0006] The present invention provides a biomass pyrolysis carbon gas cogeneration device adopts the following technical solution:

[0007] A biomass pyrolysis carbon gas cogeneration device, comprising: a pyrolysis furnace, a dust collector, a spray tower purifier and a collection device, which are sequentially connected through pipelines;

[0008] The pyrolysis furnace comprises a furnace body, a furnace cover and a discharging device arranged at the bottom of the furnace body. A supporting casing is installed in the furnace body. Two grates are movably assembled inside the supporting casing. A plurality of positioning balls are evenly arranged at the edge of the grate. A plurality of inclined grooves matching with the positioning balls are opened on the inner wall of the supporting casing. The inclined grooves matching with the positioning balls on the two grates are symmetrically arranged up and down. A prism body for limiting rotation is also arranged at the center of the grate.

[0009] A conveying pipe for feeding is installed on the side of the furnace cover, and an exhaust pipe is installed on the top of the furnace cover;

[0010] The discharging device comprises a discharging pipe, the top of which is connected to the bottom opening of the furnace body, a auger rod is installed inside the discharging pipe, and a discharging motor is also installed at one end of the discharging pipe.

[0011] Preferably, a supporting gear ring is installed on the outer side surface of the supporting casing, an adjusting motor is installed inside the furnace body, and an adjusting gear meshing with the supporting gear ring is installed on the output shaft of the adjusting motor.

[0012] Preferably, a shaft sleeve is installed at the center of the grate, the shaft sleeve is slidably sleeved on the prism, and the apertures on the upper and lower grates are staggered and overlapped.

[0013] Preferably, a hopper is also installed at the top opening of the furnace body, and a material dropping tray is rotatably installed at the bottom of the hopper. The top surface of the material dropping tray is concave in a funnel shape, and a material dropping groove is opened on the top surface of the material dropping tray along the radial direction.

[0014] Preferably, a transmission gear ring is installed at the outer edge of the blanking tray, and an outer gear ring is installed in the furnace body at a position corresponding to the position of the transmission gear ring. Three sets of planetary gears are meshed between the transmission gear ring and the outer gear ring. A vertical axis frame installed inside the furnace body is set at the center of the planetary gear, and a power motor is also installed on the bottom end of one of the vertical axis frames.

[0015] Preferably, a support shaft is installed through the center of the prism, and the upper and lower ends of the support shaft are connected to the vertical axis frame through a tripod. The support shaft is also provided with a cleaning frame, and the cleaning frame is provided with multiple telescopic rods. A cleaning plate is installed on the free end of the telescopic rod, and the cleaning plate is arranged facing the corresponding grate.

[0016] Preferably, the same cleaning gear ring is also installed on the outer end of the cleaning frame, and a cleaning gear is also mounted on the vertical shaft frame near the cleaning gear ring, and the cleaning gear is meshed with the cleaning gear ring.

[0017] Preferably, the telescopic rod comprises an upper insertion rod and a lower insertion tube, and a restoring spring is installed between the bottom end of the insertion rod and the insertion tube.

[0018] Preferably, a material blocking cylinder is further provided above and below the supporting casing, and the inner diameter of the material blocking cylinder is the same as that of the supporting casing.

[0019] In summary, the present invention includes the following beneficial technical effects:

[0020] 1. In the present application, two grates are arranged in the supporting casing, and the positioning balls on the edge of the grates are matched with the inclined grooves on the inner wall of the supporting casing. When the supporting casing rotates, the positioning balls will be squeezed and slide in the inclined grooves. At this time, the two grates will move away from each other. The apertures in the upper and lower grates lose their overlapping coordination, and the apertures through which the relative biochar can pass will increase, thereby facilitating the falling and discharging of the material.

[0021] 2. The present application also installs a cleaning plate through a telescopic rod. With the cooperation of the cleaning gear and the cleaning gear ring, the cleaning frame can be driven to rotate. When the cleaning frame rotates, the telescopic rod can be used to push the cleaning plate to slide on the grate, thereby pushing the biomass charcoal on the grate to be discharged. A long-bristled brush can also be set at the bottom of the cleaning plate to clean the biomass charcoal in the grate aperture.

[0022] 3. The present application adopts a material discharge method of a hopper and a material discharge tray. A material discharge trough is radially opened on the material discharge tray, and with the cooperation of the transmission ring gear and the planetary gear, the material discharge tray can be driven to rotate continuously. The material entering the hopper will be discharged evenly while rotating, making it convenient to evenly lay the material on the grate to ensure sufficient thermal decomposition of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the equipment structure of the production line of the present invention;

[0024] Figure 2 It is a schematic diagram of the appearance structure of the pyrolysis furnace of the present invention;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the pyrolysis furnace of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the hopper and the material drop tray of the present invention;

[0027] Figure 5 It is a schematic diagram of the linkage structure inside the furnace body of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the supporting casing of the present invention;

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the support casing of the present invention;

[0030] Figure 8 is a cross-sectional schematic diagram of the telescopic rod structure of the present invention;

[0031] Fig. 9 yes Figure 5 Schematic diagram of the structure enlarged at point A in the middle.

[0032] Description of the accompanying drawings: 1. pyrolysis furnace; 11. furnace body; 1101. support casing; 1102. grate; 1103. chute; 1104. positioning ball; 1105. bushing; 1106. prism; 1107. support shaft; 1108. hopper; 1109. drop plate; 1110. drop chute; 1111. transmission gear ring; 1112. planetary gear; 1113. outer gear ring; 1114. vertical shaft frame; 1115. power motor; 1116. support gear ring; 1117. adjustment gear; 1118. adjustment motor ; 1119, tripod; 1120, cleaning rack; 1121, telescopic rod; 11211, plug rod; 11212, plug tube; 11213, return spring; 1122, cleaning plate; 1123, cleaning gear; 1124, cleaning gear ring; 1125, blocking barrel; 12, furnace cover; 1201, conveying pipe; 1202, exhaust duct; 13, discharging device; 1301, discharging duct; 1302, discharging motor; 1303, auger rod; 2, dust collector; 3, spray tower purifier; 4, induced draft fan; 5, collection equipment. DETAILED DESCRIPTION

[0033] The following is combined with Figures 1 to 9 The present invention is described in further detail.

[0034] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0035] Embodiment 1

[0036] Reference Figures 1 to 9As shown, the present invention discloses a biomass pyrolysis carbon gas cogeneration device, comprising: a pyrolysis furnace 1, a dust collector 2, a spray tower purifier 3 and a collection device 5, which are connected in sequence through pipelines. An induced draft fan 4 is also installed in the front end pipeline of the collection device 5, and the dust collector 2 adopts a sedimentation type or cyclone dust removal to remove particulate matter in the pyrolysis gas. The spray tower purifier 3 removes tar by water spraying or spraying. The purified combustible gas is transported to the collection device 5 through the induced draft fan 4 for subsequent use. The pyrolysis furnace 1 comprises a furnace body 11, a furnace cover 12 and a discharging device 13 arranged at the bottom of the furnace body 11. A conveying pipe 1201 for matching feeding is installed on the side of the furnace cover 12, and an exhaust pipe 1202 is installed on the top of the furnace cover 12. The exhaust pipe 1202 is docked on the input end pipe of the dust collector 2. After the combustible gas generated by pyrolysis in 1 expands due to heat, it can enter the dust collector 2 through the exhaust pipe 1202, thereby removing solid particles in the pyrolysis gas, and then the tar is removed through the spray tower purifier 3. The purified combustible gas can be transported to the collection equipment 5 for storage through the induced draft fan 4, and the discharging device 13 includes a discharging pipe 1301, the top of the discharging pipe 1301 is connected to the bottom opening of the furnace body 11, and an auger rod 1303 is installed inside the discharging pipe 1301. A discharging motor 1302 is also installed at one end of the discharging pipe 1301. The biomass charcoal generated after pyrolysis in the pyrolysis furnace 1 will fall to the bottom of the furnace body 11. Through the cooperation of the auger rod 1303 in the discharging pipe 1301, the biomass charcoal can be output to the outside and can be reused after being collected.

[0037] Reference Figure 3 , 6As shown in Figures 7 and 8, a support sleeve 1101 is also installed in the furnace body 11. The support sleeve 1101 is movably equipped with two grates 1102 inside. In order to facilitate the discharge of materials and avoid the blockage of the biochar in the grate 1102 after the biochar is generated, a plurality of positioning balls 1104 are evenly arranged at the edge of the grate 1102. A plurality of inclined grooves 1103 cooperating with the positioning balls 1104 are opened on the inner wall of the support sleeve 1101 to adapt to the two grates 110 The inclined grooves 1103 of the positioning balls 1104 are symmetrically arranged in the upper and lower parts, and a prism 1106 for limiting rotation is also arranged at the center of the grate 1102. A shaft sleeve 1105 is also installed at the center of the grate 1102. The shaft sleeve 1105 is slidably sleeved on the prism 1106, and the apertures on the upper and lower grates 1102 are staggered and overlapped. Through the coordinated use of the upper and lower grates 1102, when the upper and lower grates 1102 are close to each other, the apertures on them are The staggered holes form a smaller aperture to prevent the biomass raw materials from directly passing through the grate 1102 and falling. A support gear ring 1116 is installed on the outer surface of the support casing 1101, and an adjusting motor 1118 is installed inside the furnace body 11. An adjusting gear 1117 meshing with the support gear ring 1116 is installed on the output shaft of the adjusting motor 1118. When the biomass raw materials are pyrolyzed to generate biochar, the adjusting motor 1118 can push the adjusting gear 1117 to rotate. With the cooperation of the adjusting gear 1117 and the support gear ring 1116, the support casing 1101 can be controlled to rotate. During the rotation, the positioning ball 1104 at the edge of the grate 1102 will slide along the inclined groove 1103, thereby pushing the two grates 1102 away from each other. During the process of moving away, the apertures on the two grates 1102 lose coordination, and the relative apertures increase, which facilitates the falling and unloading of biochar.

[0038] Embodiment 2

[0039] Reference Figure 3 , 5, 8, and 9, further, in order to maintain efficient feeding of biochar, a support shaft 1107 is also installed at the center of the prism 1106, and the upper and lower ends of the support shaft 1107 are connected to the vertical axis frame 1114 through a tripod 1119. A cleaning frame 1120 is also mounted on the support shaft 1107, and a plurality of telescopic rods 1121 are mounted on the cleaning frame 1120. A cleaning plate 1122 is installed on the free end of the telescopic rod 1121, and the cleaning plate 1122 is arranged to be attached to the corresponding grate 1102. The telescopic rod 1121 includes an upper plug rod 11211 and a lower plug tube 11212, a restoring spring 11213 is also installed between the bottom end of the insertion rod 11211 and the insertion tube 11212. With the cooperation of the restoring spring 11213, the length between the insertion rod 11211 and the insertion tube 11212 can change with the change of the position of the grate 1102, and keep the cleaning plate 1122 always close to the surface of the grate 1102. With the rotation of the cleaning plate 1122, the biochar on the grate 1102 can be pushed off. In addition, a long-bristled brush can be set at the bottom of the cleaning plate 1122 to further clean the biochar blocked in the aperture of the grate 1102.

[0040] Reference Figure 2 , 4 As shown in Figure 5, a hopper 1108 is also installed at the top opening of the furnace body 11, and a material drop plate 1109 is rotatably installed at the bottom of the hopper 1108. The material drop plate 1109 and the hopper 1108 can be used to conveniently receive biomass materials and transfer them to the grate 1102 for processing. A transmission gear ring 1111 is also installed at the outer edge of the material drop plate 1109, and an outer gear ring 1113 is also installed in the furnace body 11 at a position corresponding to the position of the transmission gear ring 1111. Three sets of planetary gears 1112 are meshed between the transmission gear ring 1111 and the outer gear ring 1113. A vertical shaft frame 1114 installed inside the furnace body 11 is set at the center of the planetary gear 1112, and one of the vertical shafts is installed inside the furnace body 11. A power motor 1115 is also installed on the bottom end of the frame 1114, and the same cleaning gear ring 1124 is also installed on the outer end of the cleaning frame 1120. A cleaning gear 1123 is also mounted on the vertical axis frame 1114 near the cleaning gear ring 1124. The cleaning gear 1123 is meshed with the cleaning gear ring 1124, and as the vertical axis frame 1114 rotates, the cleaning gear 1123 can also be driven to rotate. Through the cooperation of the cleaning gear 1123 and the cleaning gear ring 1124, the cleaning frame 1120 can be driven to rotate continuously. At this time, the cleaning plate 1122 installed on the cleaning frame 1120 will also rotate continuously, so that the biomass charcoal on the grate 1102 can be cleaned.

[0041] Embodiment 3

[0042] Reference Figure 3 , 45, in addition, in the second embodiment, the cooperation of the planetary gear 1112, the outer gear ring 1113 and the transmission gear ring 1111 can also drive the blanking plate 1109 to rotate, and the top surface of the blanking plate 1109 is funnel-shaped and concave, and the top surface of the blanking plate 1109 is radially provided with a blanking trough 1110, and a material blocking cylinder 1125 is also arranged above and below the supporting casing 1101. The material blocking cylinder 1125 has the same inner diameter as the supporting casing 1101. During the rotation of the blanking plate 1109, the blanking trough 1110 will continuously release the biomass material downward, and evenly spread the material on the grate 1102, so as to facilitate uniform pyrolysis of the material.

[0043] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0044] The implementation principle of a biomass pyrolysis carbon gas cogeneration device according to an embodiment of the present invention is as follows: during operation, the crushed and dried biomass material is transported to the pyrolysis furnace 1 through the conveying pipe 1201, and the material can be gathered and conveniently released into the furnace body 11 through the hopper 1108 arranged on the top of the furnace body 11. In addition, with the cooperation of the power motor 1115, the vertical shaft frame 1114 and the planetary gear 1112 can be driven to rotate, and then the planetary gear 1112 and the transmission ring gear 1111 can be used to drive the drop plate 1109 to rotate continuously, and due to the drop groove 1110 provided on the top surface of the drop plate 1109, the material can be evenly laid on the On the grate 1102, the biomass raw material can be pyrolyzed uniformly and efficiently. The biomass charcoal generated after pyrolysis in the pyrolysis furnace 1 will fall to the bottom of the furnace body 11. Through the cooperation of the auger rod 1303 in the discharge pipe 1301, the biomass charcoal can be discharged to the outside and can be reused after being collected. The combustible gas generated during the pyrolysis process will enter the exhaust pipe 1202 with the thermal expansion of the air, and then enter the dust collector 2 through the exhaust pipe 1202, so as to remove the solid particles in the pyrolysis gas, and then the tar will be removed through the spray tower purifier 3. The purified combustible gas can be transported to the collection device 5 through the induced draft fan 4 for storage;

[0045] In this process, in order to maintain the effective discharge of biochar and avoid the biochar being blocked in the grate 1102 after being generated, after the pyrolysis work is completed, the adjusting motor 1118 can be used to push the adjusting gear 1117 to rotate. Under the cooperation of the adjusting gear 1117 and the supporting gear ring 1116, the support casing 1101 can be controlled to rotate. During the rotation, the positioning ball 1104 at the edge of the grate 1102 will slide along the inclined groove 1103, thereby pushing the two grates 1102 away from each other. In the process of moving away, the apertures on the two grates 1102 lose their coordination, and the relative apertures increase, which facilitates the falling of the biochar.

[0046] Furthermore, in order to maintain efficient feeding of biochar, with the cooperation of the return spring 11213, the length between the insertion rod 11211 and the insertion tube 11212 can change with the change of the position of the grate 1102, and keep the cleaning plate 1122 always close to the surface of the grate 1102. As the cleaning plate 1122 rotates, the biochar on the grate 1102 can be pushed off. In addition, a long-bristled brush can be set at the bottom of the cleaning plate 1122 to further clean the biochar blocked in the aperture of the grate 1102.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A biomass pyrolysis carbon gas cogeneration equipment, characterized in that: include: The pyrolysis furnace (1), the dust collector (2), the spray tower purifier (3) and the collection device (5) are connected in sequence through pipelines; The pyrolysis furnace (1) comprises a furnace body (11), a furnace cover (12) and a discharge device (13) arranged at the bottom of the furnace body (11); a support casing (1101) is installed in the furnace body (11); two grates (1102) are movably mounted inside the support casing (1101); a plurality of positioning balls (1104) are evenly arranged at the edges of the grates (1102); a plurality of inclined grooves (1103) matching with the positioning balls (1104) are provided on the inner wall of the support casing (1101); the inclined grooves (1103) matching with the positioning balls (1104) on the two grates (1102) are symmetrically arranged up and down; and a prism (1106) for limiting rotation is also provided at the center of the grate (1102); A conveying pipe (1201) for feeding materials is installed on the side of the furnace cover (12), and an exhaust pipe (1202) is installed on the top of the furnace cover (12); The discharging device (13) comprises a discharging pipe (1301), the top of the discharging pipe (1301) is connected to the bottom opening of the furnace body (11), a auger rod (1303) is installed inside the discharging pipe (1301), and a discharging motor (1302) is also installed at one end of the discharging pipe (1301).

2. The biomass pyrolysis carbon-gas cogeneration equipment according to claim 1, characterized in that: A supporting gear ring (1116) is installed on the outer surface of the supporting casing (1101), an adjusting motor (1118) is installed inside the furnace body (11), and an adjusting gear (1117) meshing with the supporting gear ring (1116) is installed on the output shaft of the adjusting motor (1118).

3. The biomass pyrolysis carbon-gas cogeneration equipment according to claim 1, characterized in that: A shaft sleeve (1105) is also installed at the center of the grate (1102), and the shaft sleeve (1105) is slidably mounted on the prism (1106), and the apertures on the upper and lower grates (1102) are staggered and overlapped.

4. The biomass pyrolysis carbon-gas cogeneration equipment according to claim 1, characterized in that: A hopper (1108) is also installed at the top opening of the furnace body (11), and a material drop tray (1109) is rotatably installed at the bottom of the hopper (1108). The top surface of the material drop tray (1109) is concave in a funnel shape, and a material drop groove (1110) is radially opened on the top surface of the material drop tray (1109).

5. The biomass pyrolysis carbon-gas cogeneration equipment according to claim 4, characterized in that: A transmission gear ring (1111) is also installed at the outer edge of the blanking plate (1109), and an outer gear ring (1113) is also installed in the furnace body (11) at a position corresponding to the transmission gear ring (1111), and three sets of planetary gears (1112) are meshed between the transmission gear ring (1111) and the outer gear ring (1113), and a vertical shaft frame (1114) installed inside the furnace body (11) is set at the center of the planetary gear (1112), and a power motor (1115) is also installed at the bottom end of one of the vertical shaft frames (1114).

6. The biomass pyrolysis carbon-gas cogeneration equipment according to claim 5, characterized in that: A support shaft (1107) is also installed through the center of the prism (1106), and the upper and lower ends of the support shaft (1107) are connected to the vertical shaft frame (1114) through a tripod (1119). A cleaning frame (1120) is also installed on the support shaft (1107), and a plurality of telescopic rods (1121) are installed on the cleaning frame (1120). A cleaning plate (1122) is installed on the free end of the telescopic rod (1121), and the cleaning plate (1122) is arranged to be close to the corresponding grate (1102).

7. The biomass pyrolysis carbon-gas cogeneration equipment according to claim 6, characterized in that: The outer end of the cleaning frame (1120) is also provided with a cleaning gear ring (1124), and a cleaning gear (1123) is also mounted on the vertical shaft frame (1114) near the cleaning gear ring (1124), and the cleaning gear (1123) is meshed with the cleaning gear ring (1124).

8. The biomass pyrolysis carbon-gas cogeneration equipment according to claim 6, characterized in that: The telescopic rod (1121) comprises an upper insertion rod (11211) and a lower insertion tube (11212), and a restoring spring (11213) is installed between the bottom end of the insertion rod (11211) and the insertion tube (11212).

9. The biomass pyrolysis carbon-gas cogeneration equipment according to claim 1, characterized in that: A material blocking cylinder (1125) is also provided above and below the supporting casing (1101), and the inner diameter of the material blocking cylinder (1125) is the same as that of the supporting casing (1101).

Images