A production system for producing humic acid from biomass

Abstract

The present invention relates to a production system for producing humic acid from biomass, which is applied to the technical field of humic acid production. After the combustion of plants, the gaseous products are circulated and cooled, and part of the gas is directly condensed into humic acid. In this process, the continuous production of humic acid can be achieved. Compared with the prior art, humic acid can be mass-produced, which greatly improves the production efficiency of the entire humic acid. Moreover, the production system can continuously produce two different humic acids at the same time, so that the production efficiency of humic acid can be further improved. In addition, the by-product of the production system is combustion gas, which can be used as fuel for recycling, thereby realizing the self-circulation of fuel combustion.

Description

Technical Field

[0001] The present invention relates to a humic acid production system, and in particular to a biomass humic acid production system applied in the technical field of humic acid production. Background Art

[0002] Humic acid is a macromolecular organic substance widely found in nature, and is widely used in agriculture, forestry, animal husbandry, petroleum, chemical industry, building materials, medicine and health, environmental protection and other fields. Especially now, ecological agriculture construction, pollution-free agricultural production, green food, pollution-free environmental protection and other aspects are advocated, which makes humic acid highly respected.

[0003] In the prior art, when producing humic acid from straw, plant branches and leaves, etc., only humic acid or organic fertilizer containing humic acid is used, and in actual production, each step is generally operated separately, which leads to poor continuity in humic acid production and difficulty in achieving mass production of humic acid, resulting in low production efficiency. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the prior art has poor continuity when using plants to produce humic acid, making it difficult to achieve batch production, resulting in low production efficiency.

[0005] To solve the above problems, the present invention provides a production system for humic acid from biomass, including an outer box body, production equipment integrated in the outer box body, and an operation and control room with a control center arranged on the right side inside the outer box body, and support feet are installed at the four corners of the bottom of the outer box body. The production equipment includes a raw material processing module located on the left side of the outer box body, a reactor communicated with the raw material processing module, a condenser located in front of the reactor, a quenching tank and a quenching tower located at the rear of the inner part of the outer box body, a preheating tower located above the quenching tower, a cyclone separator located in front of the quenching tank, a granulator located on the right side of the condenser, and a finished product tank and a circulating water tank located between the granulator and the quenching tower. The finished product tank is located above the circulating water tank, and the quenching tank and the quenching tower are arranged in parallel from left to right, and the liquid material outlet of the quenching tank is connected to the quenching tower. A main fan and an oxygen supply fan are also arranged on the right side of the quenching tower. An oxygen supply channel is connected between the oxygen supply fan and the burner used for ignition in front of the reactor. A circulating water pipe is connected between the inlet and outlet of the cooling medium on the condenser and the inlet and outlet of the circulating water tank. A finished product liquid pipeline is connected between the liquid product outlet on the condenser and the finished product tank. Gas channels are installed between the exhaust port of the reactor, the air inlet of the cyclone separator, the exhaust port of the cyclone separator, the air inlet of the quenching tank, the exhaust port of the quenching tank, the material inlet of the condenser, the gas product outlet on the condenser, the air inlet of the main fan, the air inlet of the preheating tower, the exhaust port of the preheating tower, and the burner inlet for ignition on the reactor. An ash screw conveyor is installed between the discharge port of the reactor and the material inlet of the granulator, and the discharge port of the cyclone separator is connected to the ash screw conveyor.

[0006] An intake pipe is fixedly connected to the front end of the lower part of the preheating tower, an exhaust pipe is fixedly connected to the upper end of the preheating tower, a temperature sensor is installed in the exhaust pipe, a meandering preheating channel is arranged inside the preheating tower, a support frame is installed between the meandering preheating channel and the bottom of the preheating tower, the lower inlet and the upper outlet of the meandering preheating channel are respectively fixed and communicated with the intake pipe and the exhaust pipe, and the temperature sensor is connected with the control center signal.

[0007] In the above-mentioned movable box-type biomass humic acid production system, the gaseous products are circulated and cooled after the plant combustion, and part of the gas is directly condensed into humic acid. In this process, the continuous production of humic acid can be achieved, and then batch mass production can be achieved, which effectively improves the production efficiency of the entire humic acid. In addition, this production system can produce two different humic acids at the same time.

[0008] As a further improvement of the present application, an ignition module is provided on the preheating tower, the feeder and the reactor, and the ignition module includes an igniter and a burner arranged on the igniter. A gas channel is also connected between the material gas outlet on the condenser and the combustion chamber of the feeder and the preheating tower igniter, and an oxygen supply channel is also connected between the oxygen supply fan and the burner of the igniter on the preheating tower and the feeder.

[0009] As a further improvement of the present application, a water spray assembly is also installed on the granulator, and a humidity sensor and a viscosity sensor are installed in the granulation disk of the granulator, and both the humidity sensor and the viscosity sensor are connected to the control center signal.

[0010] As a further improvement of the present application, the discharge port of the finished product tank and the bottom of the quenching tower are both equipped with automatic liquid filling equipment, and a weight sensor is installed on the automatic material filling equipment, and the weight sensor is connected to the control center signal.

[0011] As a further improvement of the present application, the feed port of the granulator is equipped with an automatic material filling device.

[0012] As a further improvement of the present application, a plurality of inclined guide plates are fixedly connected to the conical inner wall of the cyclone separator.

[0013] As a further improvement of the present application, the meandering preheating channel includes multiple groups of preheating plates distributed up and down, and multiple air guide pipes respectively connected between two adjacent preheating plates, and the air guide pipes are all connected to the corresponding preheating plates.

[0014] As another improvement of the present application, the preheating plate includes two hollow plates corresponding to each other, a bellows connected between the two hollow plates and two electric push rods, the multiple bellows are located at the end of the hollow plate away from the gas guide pipe, the two electric push rods are located between the bellows and the gas guide pipe, and the extended ends of the electric push rods are facing upward, the ends of the two hollow plates close to each other are fixedly connected with a flow conversion assembly, the two flow conversion assemblies do not contact each other, the flow conversion assembly corresponds to the gas guide pipe, and the electric push rod is connected to the control center signal.

[0015] As another improvement supplement to the present application, a converter plate is fixedly connected inside the hollow plate, and the converter plate divides the inside of the hollow plate into a left cavity and a right cavity. The converter plate is close to the converter component side, and the converter plate includes a fixed flow plate and a moving flow plate installed on the end of the fixed flow plate away from the converter component through an electric slide rail. Both the fixed flow plate and the moving flow plate are provided with air guide holes, and the multiple air guide holes on the fixed flow plate and the moving flow plate are staggered with each other.

[0016] As another improved supplement of the present application, the flow converter assembly includes an outer shell and a cone head reducing core movably inserted inside the outer shell, the inner wall of the outer shell is bored with an annular groove, a plurality of sliding plates are fixedly connected to the outer end of the cone head reducing core, compression springs are connected between the plurality of sliding plates and the inner wall of the annular groove close to the corresponding bellows, a plurality of guide holes are also bored on the cone head reducing core, the guide holes are connected to the inside of the cone head reducing core, and the guide holes correspond to the compression spring, a flow converter push pin is fixedly connected to the end of the cone head reducing core away from the compression spring, and the flow converter push pin extends to the outside of the outer shell.

[0017] As another improvement supplement of the present application, the variable current push pins on the two opposite variable current assemblies are distributed centrally symmetrically, and when the compression spring is in the initial state, the length of the variable current push pin located on the outer side of the shell is greater than the length located on the inner side of the shell.

[0018] As another improved supplement of the present application, when the compression spring is in the original state, the end of the cone-shaped reducing core conflicts with the reducing portion inside the housing.

[0019] In summary, after the plants are burned, the gaseous products are circulated and cooled, and part of the gas is directly condensed into humic acid. In this process, the continuous production of humic acid can be achieved. Compared with the existing technology, humic acid can be mass-produced, which greatly improves the production efficiency of the entire humic acid. Moreover, this production system can continuously produce two different humic acids at the same time, so that the production efficiency of humic acid can be further improved. In addition, the by-product of this production system is combustion gas, which can be used as fuel in a cycle to achieve self-circulation of fuel combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A top view of the first embodiment of the present application;

[0021] Figure 2 This is a front view of the first embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the water circulation route of the condenser during the condensation process of the first embodiment of the present application;

[0023] Figure 4 This is a schematic diagram of the circulation process of the gaseous product in the first embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of the main process of the first implementation method of this application;

[0025] Figure 6 This is a partial front view of a preheating tower according to a second embodiment of the present application;

[0026] Figure 7 This is a front view of the meandering preheating channel of the second embodiment of the present application;

[0027] Figure 8 This is a schematic diagram of the main structure of the converter plate of the second embodiment of the present application;

[0028] Fig. 9 This is a cross-sectional schematic diagram of a flow conversion assembly according to a second embodiment of the present application;

[0029] Fig.10 This is a schematic diagram of the second embodiment of the present application when two current conversion components conflict with each other so that both paths on both sides are conductive;

[0030] Fig.11 This is a front view schematic diagram of the meander-shaped preheating channel after the two-by-two flow conversion components contact each other in the second embodiment of the present application;

[0031] Fig.12 This is a schematic diagram of a second embodiment of the present application when the flow channel portion in the meander-shaped preheating channel is reduced;

[0032] Fig.13 This is a schematic diagram of a second embodiment of the present application in which the flow channel in the meander-shaped preheating channel is completely reduced to a vertical channel;

[0033] Description of the numbers in the figure:

[0034] 101 crusher, 102 storage bin, 103 screw discharging machine, 2 feeder, 3 reaction furnace, 31 cyclone separator, 32 ash screw conveyor, 41 quenching tank, 42 ​​condenser, 43 quenching tower, 51 finished product tank, 52 circulating water tank, 10 granulator, 11 main fan, 12 oxygen supply fan;

[0035] 6 preheating tower, 601 intake pipe, 602 exhaust pipe, 603 temperature sensor, 7 flow change plate, 71 constant flow plate, 72 moving flow plate, 701 air guide hole, 81 hollow plate, 821 bellows, 822 air guide pipe, 83 electric push rod, 9 flow change assembly, 91 shell, 92 cone head reducing core, 93 sliding plate, 94 compression spring, 95 flow change push pin, 901 flow guide hole. DETAILED DESCRIPTION

[0036] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0037] The first implementation method:

[0038] Figure 1 and Figure 2A production system for producing humic acid from biomass is shown, in which a represents a control room, b represents a support leg, and the system includes an outer box, production equipment integrated in the outer box, and a control room with a control center arranged on the right side of the outer box. Support legs are installed at the four corners of the bottom of the outer box. The production equipment includes a raw material processing module located on the left side of the outer box, a reactor 3 connected to the raw material processing module, a condenser 42 located in front of the reactor 3, a quenching tank 41 and a quenching tower 43 located at the rear of the outer box, a preheating tower 6 located above the quenching tower 43, a cyclone separator 31 located in front of the quenching tank 41, a granulator 10 located on the right side of the condenser 42, and a finished product tank 51 and a circulating water tank 52 located between the granulator 10 and the quenching tower 43. The finished product tank 51 is located between the circulating water tank 52 and the quenching tower 43. At the top, the quenching tank 41 and the quenching tower 43 are arranged in parallel from left to right, and the liquid material outlet of the quenching tank 41 is connected to the quenching tower 43, and a main fan 11 and an oxygen supply fan 12 are also arranged on the right side of the quenching tower 43; the raw material processing module includes a crusher 101, a storage bin 102 and a screw discharging machine 103 located at the bottom of the storage bin 102 in sequence, and the discharge port of the screw discharging machine 103 is connected to the feed port of the feeder 2, wherein the feeding port of the crusher 101 extends to the inner side of the mouth of the storage bin 102, and the straw, plant branches and leaves are crushed by the crusher 101, and the crushed material falls into the storage bin 102, and then is transported to the feeder 2 through the screw discharging machine 103, and the feeder 2 feeds into the reactor 3 to produce humic acid and organic fertilizer.

[0039] like Figure 3 In the figure, the dotted line represents the finished liquid pipeline, the solid line represents the circulating water pipeline, and the arrow represents the flow direction of the fluid in the pipeline. The finished product tank 51 is located above the circulating water tank 52. The two are overlapped in the top view. Here, for clear expression, the two are separated. The specific position relationship is still referred to Figure 1 As shown, they are stacked up and down, and circulating water pipes are connected between the inlet and outlet of the cooling medium on the condenser 42 and the inlet and outlet of the circulating water tank 52. A finished liquid pipeline is connected between the liquid product outlet on the condenser 42 and the finished product tank 51. The high-temperature gas entering the condenser 42 can be cooled by circulating water, and part of the gas condenses to form fulvic acid, which is transported to the finished product tank 51 through the finished liquid pipeline for storage.

[0040] like Figure 4In the figure, the dotted line represents the oxygen supply channel, the solid line represents the gas channel, and the arrow represents the gas flow direction in the oxygen supply channel. The oxygen supply channel is connected between the oxygen supply fan 12 and the burner for ignition in front of the reactor 3. The exhaust port of the reactor 3, the air inlet of the cyclone separator 31, the exhaust port of the cyclone separator 31, the air inlet of the quenching tank 41, the exhaust port of the quenching tank 41, the material inlet of the condenser 42, the gas product outlet on the condenser 42, the air inlet of the main fan 11, the air inlet of the preheating tower 6, the exhaust port of the preheating tower 6, and the burner inlet for ignition on the reactor 3 are all installed with gas channels. An ash screw conveyor 32 is installed between the discharge port of the reactor 3 and the material inlet of the granulator 10, and the discharge port of the cyclone separator 31 is connected to the ash screw conveyor 32. Figure 5 The high-temperature gas produced by the reaction in the reactor 3 first reaches the cyclone separator 31 for cyclone separation to remove some impurities, and then enters the quenching tank 41. After quenching, part of the gas is condensed to obtain humic acid, which flows into the bottom of the quenching tower 43 for storage, and then the uncondensed gas is again sent along the gas pipeline to the condenser 42 for condensation to obtain humic acid. The still uncondensed gas, that is, the combustible mixed gas such as methane and ethane, is sucked under the action of the main fan 11, and after being preheated in the preheating tower 6, it is sent into the combustion chamber of the igniter to realize the self-circulation of the fuel. This part of the combustible gas can be burned again as fuel in the combustion chamber to assist the production of organic fertilizer and humic acid.

[0041] The main fan 11 is always in the on state, so that the reaction furnace 3, the quenching tank 41, the condenser 42, etc. are all in a negative pressure state, thereby providing power for the gas in the gas channel, so that the gas can circulate stably in the above process.

[0042] After being discharged from the cyclone separator 31 , the solid matter enters the ash screw conveyor 32 , and is transported to the granulator 10 together with the ash in the reaction furnace 3 , and is granulated to obtain organic fertilizer granules.

[0043] In addition, it is worth noting that the preheating tower 6, the feeder 2 and the reactor 3 are all provided with an ignition module, the ignition module includes an igniter and a burner arranged on the igniter, a gas channel is also connected between the material gas outlet on the condenser 42 and the combustion chamber of the feeder 2 and the preheating tower 6 igniter, and an oxygen supply channel is also connected between the oxygen supply fan 12 and the preheating tower 6 and the burner of the igniter on the feeder 2, so that the non-condensable gas discharged from the gas product outlet on the condenser 42 can also be passed into the burner of the igniter on the preheating tower 6 and the feeder 2 through the gas channel, so that the combustible gas generated by the combustion of straw can also be used as fuel for the preheating tower 6 and the feeder 2, effectively realizing the self-circulation of the fuel. When in use, the heating of the burner on the preheating tower 6 can make the preheating tower 6 at a higher temperature, thereby facilitating the preheating of the combustible gas that needs to flow into the reactor 3, so that the use of the preheating tower 6 does not require the provision of electricity, or only uses less electricity to achieve preheating, thereby improving resource utilization and reducing energy input.

[0044] In addition, a water spray assembly is also installed on the granulator 10. A humidity sensor and a viscosity sensor are installed in the granulation disk of the granulator. The humidity sensor and the viscosity sensor are both connected to the control center signal. The humidity sensor and the viscosity sensor can monitor the humidity and viscosity of the fertilizer particles during granulation in real time. The control center can directly regulate the water spraying of the water spray assembly based on the data, thereby achieving better granulation.

[0045] The discharge port of the finished product tank 51 and the bottom of the quenching tower 43 are both equipped with liquid automatic filling equipment, and the material automatic filling equipment is equipped with a weight sensor, which is connected to the control center signal. The discharge port of the granulator 10 is equipped with a material automatic filling equipment, so that the obtained liquid product humic acid and granular product organic fertilizer can be automatically filled, which is convenient for the continuous production of humic acid and organic fertilizer.

[0046] The conical inner wall of the cyclone separator 31 is fixedly connected with a plurality of inclined guide plates, through which the solids in the cyclone separator 31 can be forced to move downward quickly, making it less likely that the solids will be difficult to discharge, thereby improving the smoothness of the entire system.

[0047] The combustible gas generated by the system is transported to the preheating tower 6 and the ignition module in the feeder 2, while the transport to the combustion chamber in the reaction furnace 3 is necessary, which can be selectively set according to actual needs during implementation.

[0048] like Figure 6An air inlet pipe 601 is fixedly connected to the front end of the lower part of the preheating tower 6, an exhaust pipe 602 is fixedly connected to the upper end of the preheating tower 6, a temperature sensor 603 is installed in the exhaust pipe 602, a meandering preheating channel is arranged inside the preheating tower 6, a support frame is installed between the meandering preheating channel and the bottom of the preheating tower 6, the lower inlet and the upper outlet of the meandering preheating channel are respectively fixed and communicated with the air inlet pipe 601 and the exhaust pipe 602, the temperature sensor 603 is connected with the control center signal, when the combustible gas that has been cooled for multiple times enters the preheating tower 6 for preheating, the temperature sensor 603 can monitor the temperature of the combustible gas after being discharged, so as to facilitate timely regulation and effectively avoid the occurrence of excessively high or low temperatures.

[0049] The zigzag preheating channel includes a plurality of groups of preheating plates distributed up and down, and a plurality of gas guide pipes 822 respectively connected between two adjacent preheating plates. The gas guide pipes 822 are all connected to the corresponding preheating plates. The preheating plates include two hollow plates 81 corresponding to each other, and a bellows 821 connected between the two hollow plates 81. During preheating, the rotating channel setting can make the moving path of the combustible gas in the preheating tower 6 longer, which is convenient for sufficient preheating and for its combustion in the combustion chamber of the reactor 3.

[0050] In summary, during the combustion of plants, solid products can be directly granulated to obtain organic fertilizer particles. After the gas products are condensed and cooled, part of the gas can be condensed into liquid to obtain humic acid, and some of the combustible gases that cannot be condensed can be transferred to the burner through the gas channel and used as part of the fuel, so that the plants can be fully burned and the fuel combustion self-circulation can be realized. Compared with the existing technology, the resource utilization rate is greatly improved and the impact on the environment is effectively reduced; and under the action of the preheating tower 6, this part of the gas after cooling can be preheated, thereby accelerating its combustion speed when entering the combustion chamber, and at the same time, reducing the impact on the stability of the combustion reaction in the combustion chamber.

[0051] The second implementation method:

[0052] Based on the first embodiment, this embodiment further improves the meandering preheating channel, and the rest of the parts remain the same as the first embodiment.

[0053] Figure 7As shown, the preheating plate includes two hollow plates 81 corresponding to each other, a bellows 821 connected between the two hollow plates 81, and two electric push rods 83. The multiple bellows 821 are located at one end of the hollow plate 81 away from the gas guide pipe 822. The two electric push rods 83 are located between the bellows 821 and the gas guide pipe 822, and the extended ends of the electric push rods 83 face upward. The ends of the two hollow plates 81 close to each other are fixedly connected with a flow conversion component 9. The two flow conversion components 9 do not contact each other. The flow conversion component 9 corresponds to the gas guide pipe 822. The electric push rods 83 are connected to the control center. Signal connection, in this embodiment, when there is a safety hazard of excessive temperature of the combustible gas after preheating, the control center can control the electric push rod 83 to shorten, so that the two variable flow components 9 on the same preheating plate are mutually conductive, so that the combustible gas entering the meandering preheating channel can move directly upward along the variable flow component 9, thereby reducing the flow path of the gas in the preheating tower 6, reducing its preheating time in the preheating tower 6, and accelerating the discharge of the preheating tower 6, thereby realizing temperature control of the preheated combustible gas, thereby effectively alleviating the safety hazard caused by the excessively high temperature of the combustible gas.

[0054] The hollow plate 81 is fixedly connected with a flow converter plate 7, which is close to the flow converter assembly 9. The flow converter plate 7 divides the hollow plate 81 into a left cavity and a right cavity, and the lateral length ratio of the left cavity to the right cavity is 1:5-10, so that the flow converter plate 7 includes a fixed flow plate 71 and a moving flow plate 72 installed on the end of the fixed flow plate 71 away from the flow converter assembly 9 through an electric slide rail. Figure 8 Both the fixed flow plate 71 and the moving flow plate 72 are provided with air guide holes 701, and the multiple air guide holes 701 on the fixed flow plate 71 and the moving flow plate 72 are staggered. When the multiple air guide holes 701 on the fixed flow plate 71 and the moving flow plate 72 overlap, the left cavity and the right cavity are connected, and the left and right sides of the hollow plate 81 are connected. At this time, the gas entering the hollow plate 81 can diffuse in the entire hollow plate 81, and when the multiple air guide holes 701 on the fixed flow plate 71 and the moving flow plate 72 are staggered, the left cavity and the right cavity are independent of each other.

[0055] like Fig. 9The variable flow component 9 includes a shell 91 and a cone head reducing core 92 movably inserted in the shell 91. The inner wall of the shell 91 is bored with an annular groove. The outer end of the cone head reducing core 92 is fixedly connected with a plurality of sliding plates 93. Compression springs 94 are connected between the plurality of sliding plates 93 and the inner wall of the annular groove close to the corresponding bellows 821. A plurality of flow guide holes 901 are also bored on the cone head reducing core 92. The flow guide holes 901 are communicated with the inside of the cone head reducing core 92, and the flow guide holes 901 correspond to the compression spring 94. A variable flow push pin 95 is fixedly connected to one end of the cone head reducing core 92 away from the compression spring 94. The variable flow push pin 95 extends to the outside of the shell 91. The variable flow push pins 95 on the two opposite variable flow components 9 are symmetrically distributed in the center. When the compression spring 94 is in the initial state, the length of the variable flow push pin 95 located on the outer side of the shell 91 is greater than the length located on the inner side of the shell 91. Fig.10 When the two converter components 9 conflict with each other, it is effectively ensured that the converter push pin 95 on one converter component 9 can push the cone head reducing core 92 in the other converter component 9. Correspondingly, the converter push pin 95 on the other converter component 9 can push the cone head reducing core 92 in one converter component 9. The two push each other, so that the two cone head reducing cores 92 are separated from the reducing part of the shell 91, and the channel between the two converter components 9 is connected, so that the combustible gas can directly flow through the two contacting converter components 9 to the hollow plate 81 above. When the compression spring 94 is in the original state, the end of the cone head reducing core 92 conflicts with the reducing part inside the shell 91, which effectively ensures the sealing of the converter component 9 inside and outside in the original state.

[0056] like Figure 7 When the two relative variable flow components 9 are not in contact, the combustible gas will push the cone head reducing core 92 when passing through the variable flow component 9, causing it to collide with the reducing part inside the shell 91, so that the variable flow component 9 is blocked, and the combustible gas is difficult to overflow. It can only move upward along the bellows 821 or the gas guide pipe 822. At the same time, when the gas guide holes 701 on the fixed flow plates 71 and the moving flow plates 72 of the multiple variable flow plates 7 overlap with each other, the left cavity and the right cavity are connected, and the preheating path of the combustible gas is the longest at this time.

[0057] like Fig.11 When the temperature of the combustible gas is too high, the control center can control the electric push rod 83 to shorten, so that the multiple flow conversion components 9 are in conflict with each other:

[0058] At this time, if Fig.13 , the dotted arrow in the figure indicates the preheating path of the combustible gas. When the air guide holes 701 on the fixed flow plate 71 and the moving flow plate 72 in the control of the multiple deflector plates 7 are all misaligned, the left chambers and the right chambers of the multiple hollow plates 81 are independent of each other. At this time, the multiple left chambers, the multiple deflector components 9 and the multiple air guide pipes 822 are alternately connected, and the gas can only move up along this path. At this time, the preheating path of the combustible gas is the shortest and the preheating time is the shortest;

[0059] like Fig.12 , the left cavity and the right cavity in the lower hollow plate 81 of each preheating pair of plates can be controlled to be independent, and the left cavity and the right cavity of the upper 8 are connected. At this time, when the combustible gas reaches the lower hollow plate 81, it can only diffuse in the left cavity, and after reaching the left cavity of the upper hollow plate 81, it can also diffuse toward the right cavity. At this time, the preheating path is about half the length of the longest path.

[0060] On the basis of the above, the overlap of the air guide holes 701 on the multiple deflector plates 7 can be adjusted according to actual needs, so as to achieve the effect of adjusting the extension of the preheating path or shortening the path, thereby realizing the regulation of the preheating temperature of the combustible gas, and then achieving the synchronous regulation of the preheating efficiency and the preheating temperature.

[0061] Under the setting of the meandering preheating channel, when the temperature is too high or too low, there is no need to adjust the amount of fuel in the burner, so that the combustion in the combustion chamber can be maintained in a relatively stable state. It is only necessary to adjust the path of the meandering preheating channel to regulate the preheating temperature and efficiency of the combustible gas under stable combustion. The longer the preheating path, the lower the preheating efficiency, but the higher the preheating temperature; the shorter the preheating path, the higher the efficiency, but the preheating temperature will drop, thereby effectively reducing the safety hazards caused by excessive temperature and ensuring the stability and safety of the entire production process.

[0062] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A production system for producing humic acid from biomass, characterized in that: The invention comprises an outer box, production equipment integrated in the outer box, and a control room with a control center arranged on the right side of the outer box. The four corners of the bottom of the outer box are equipped with support feet. The production equipment comprises a raw material processing module located on the left side of the outer box, a reaction furnace (3) connected to the raw material processing module, a condenser (42) located in front of the reaction furnace (3), a quenching tank (41) and a quenching tower (43) located at the rear of the outer box, a preheating tower (6) located above the quenching tower (43), a cyclone separator (31) located in front of the quenching tank (41), a granulator (10) located on the right side of the condenser (42), and a granulator (10) and a quenching tower (43) located between the granulator (10) and the quenching tower. (43), the finished product tank (51) and the circulating water tank (52) are arranged between the quenching tank (41) and the quenching tower (43), the finished product tank (51) is located above the circulating water tank (52), the quenching tank (41) and the quenching tower (43) are arranged in parallel from left to right, and the liquid material outlet of the quenching tank (41) is communicated with the quenching tower (43), and a main fan (11) and an oxygen supply fan (12) are also arranged on the right side of the quenching tower (43), and the raw material processing module includes a pulverizer (101), a storage bin (102) and a spiral discharger (103) located at the bottom of the storage bin (102), and the discharge port of the spiral discharger (103) is communicated with the feed port of the feeder (2); An oxygen supply channel is connected between the oxygen supply fan (12) and the burner for ignition in front of the reaction furnace (3); a circulating water pipe is connected between the inlet and outlet of the cooling medium on the condenser (42) and the inlet and outlet of the circulating water tank (52); a finished liquid pipeline is connected between the liquid product outlet on the condenser (42) and the finished product tank (51); the exhaust port of the reaction furnace (3), the air inlet of the cyclone separator (31), the exhaust port of the cyclone separator (31), the air inlet of the quenching tank (41), the air inlet of the quenching tank (41) and the air inlet of the quenching tank (41) are connected to the exhaust port of the reaction furnace (3), the air inlet of the cyclone separator (3 ... cyclone separator (31). ) an exhaust port and a material inlet of a condenser (42), a gas product outlet on the condenser (42), an air inlet of a main fan (11), an air inlet of a preheating tower (6), an exhaust port of the preheating tower (6), and an inlet of a burner for ignition on the reaction furnace (3) are all provided with gas passages therebetween; an ash screw conveyor (32) is provided between a discharge port of the reaction furnace (3) and a material inlet of a granulator (10); and a discharge port of the cyclone separator (31) is communicated with the ash screw conveyor (32); The front end of the lower part of the preheating tower (6) is fixedly connected to an air intake pipe (601), the upper end of the preheating tower (6) is fixedly connected to an exhaust pipe (602), a temperature sensor (603) is installed in the exhaust pipe (602), a meandering preheating channel is arranged inside the preheating tower (6), a support frame is installed between the meandering preheating channel and the bottom of the preheating tower (6), the lower inlet and the upper outlet of the meandering preheating channel are respectively fixed to and communicate with the air intake pipe (601) and the exhaust pipe (602), and the temperature sensor (603) is connected to a control center signal.

2. The biomass-based humic acid production system according to claim 1, characterized in that: The preheating tower (6), the feeder (2) and the reaction furnace (3) are all provided with an ignition module, the ignition module comprising an igniter and a burner arranged on the igniter, a gas passage is also connected between the material gas outlet on the condenser (42) and the combustion chamber of the igniter of the feeder (2) and the preheating tower (6), and an oxygen supply passage is also connected between the oxygen supply fan (12) and the burner of the igniter on the preheating tower (6) and the feeder (2).

3. The production system of humic acid from biomass according to claim 1, characterized in that: The granulator (10) is also equipped with a water spray assembly. A humidity sensor and a viscosity sensor are installed in the granulator disc of the granulator. The humidity sensor and the viscosity sensor are both connected to the control center signal.

4. The production system of humic acid from biomass according to claim 1, characterized in that: The discharge port of the finished product tank (51) and the bottom of the quenching tower (43) are both equipped with automatic liquid filling equipment, and a weight sensor is installed on the automatic liquid filling equipment. The weight sensor is connected to the control center signal.

5. The production system of humic acid from biomass according to claim 1, characterized in that: The material discharge port of the granulator (10) is equipped with an automatic material filling device.

6. The production system of humic acid from biomass according to claim 1, characterized in that: A plurality of inclined guide plates are fixedly connected to the conical inner wall of the cyclone separator (31).

7. The production system of humic acid from biomass according to claim 1, characterized in that: The meander-shaped preheating channel comprises a plurality of groups of preheating plates distributed vertically, and a plurality of air guide pipes (822) respectively connected between two adjacent preheating plates, wherein the air guide pipes (822) are all in communication with the corresponding preheating plates.

8. The production system of humic acid from biomass according to claim 7, characterized in that: The preheating pair of plates comprises two hollow plates (81) corresponding to each other, a bellows (821) connected between the two hollow plates (81), and two electric push rods (83); the plurality of bellows (821) are located at one end of the hollow plate (81) away from the main air guide pipe (822); the two electric push rods (83) are located between the bellows (821) and the main air guide pipe (822); the extended ends of the electric push rods (83) face upward; the ends of the two hollow plates (81) close to each other are fixedly connected with a flow conversion assembly (9); the two flow conversion assemblies (9) do not contact each other; the flow conversion assembly (9) corresponds to the main air guide pipe (822); and the electric push rods (83) are connected to a control center signal.

9. The production system of humic acid from biomass according to claim 8, characterized in that: A flow change plate (7) is fixedly connected to the hollow plate (81) inside, the flow change plate (7) being close to a side of the flow change assembly (9), the flow change plate (7) comprising a fixed flow plate (71) and a moving flow plate (72) mounted on an end of the fixed flow plate (71) away from the flow change assembly (9) via an electric slide rail, air guide holes (701) being bored on both the fixed flow plate (71) and the moving flow plate (72), and the plurality of air guide holes (701) on the fixed flow plate (71) and the moving flow plate (72) being staggered and distributed with respect to each other.

10. The production system of humic acid from biomass according to claim 8, characterized in that: The variable flow assembly (9) comprises a housing (91) and a cone head diameter reducing core (92) movably inserted in the housing (91); an annular groove is bored on the inner wall of the housing (91); a plurality of sliding plates (93) are fixedly connected to the outer end of the cone head diameter reducing core (92); a compression spring (94) is connected between the plurality of sliding plates (93) and the inner wall of the annular groove close to the corresponding bellows (821); a plurality of flow guide holes (901) are also bored on the cone head diameter reducing core (92); the flow guide holes (901) are communicated with the interior of the cone head diameter reducing core (92); and the flow guide holes (901) and the compression spring are connected to each other. The conical head variable diameter core (92) corresponds to the compression spring (94), one end of the conical head variable diameter core (92) away from the compression spring (94) is fixedly connected to a variable flow push pin (95), and the variable flow push pin (95) extends to the outside of the housing (91). The variable flow push pins (95) on the two opposite variable flow assemblies (9) are symmetrically distributed in the center, and when the compression spring (94) is in an initial state, the length of the variable flow push pin (95) located on the outside of the housing (91) is greater than the length located on the inside of the housing (91). When the compression spring (94) is in the original state, the end of the conical head variable diameter core (92) contacts the variable diameter portion inside the housing (91).

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