Chemical and chemical engineering circulating type catalytic cracking device and cracking method

Abstract

The invention relates to the technical field of biological reaction, in particular to a chemical engineering circulating type catalytic cracking device and a cracking method, and aims to solve the problems that in the prior art, the enzyme activity is easily influenced by temperature, mixing is uneven, recycling is difficult, and the pH value is difficult to regulate and control. The enzyme solution and the raw materials are uniformly mixed by the conveying part; a filtering assembly is arranged in the cracking part, so that enzyme recycling is realized; the pH detection sensor and the material supplementing pump are arranged, the pH value of the reaction system is monitored and adjusted in real time, the problems in the prior art are effectively solved through the steps of preheating, flow dividing, stirring, filtering, pH adjusting and the like, and the efficiency of the catalytic cracking reaction and the product quality are improved.

Description

Technical Field

[0001] This invention relates to the field of bioreaction technology, and in particular to a chemical and chemical recycling catalytic cracking device and cracking method. Background Technology

[0002] In the field of biochemistry, catalytic cracking is an important production process used to convert raw materials into more valuable products. Enzyme-catalyzed cracking, as a green and efficient catalytic method, has attracted widespread attention due to its advantages such as mild reaction conditions, high selectivity, and environmental friendliness. Enzyme solutions play a key role in catalytic cracking reactions, and their activity and stability directly affect the efficiency of the reaction and the quality of the products. However, in actual catalytic pyrolysis processes, the activity of enzyme solutions is easily affected by a variety of factors. For example, temperature has a significant impact on enzyme activity; excessively low or high temperatures can lead to reduced enzyme activity or even inactivation. In traditional catalytic pyrolysis devices, enzyme solutions are usually added directly to the reaction system. If the temperature of the reaction system is not suitable, the enzyme solution needs a certain amount of time to adapt to the temperature change after entering the reaction system. This not only reduces enzyme activity but also affects the initial reaction rate and overall efficiency. In addition, the uniformity of mixing between the enzyme solution and the raw materials is also crucial in the catalytic pyrolysis reaction process; uneven mixing will lead to incomplete reaction, and some raw materials will not be able to fully contact the enzyme, thereby reducing the yield and quality of the product; moreover, in traditional catalytic pyrolysis devices, the enzyme is often difficult to recover and reuse after the reaction, resulting in waste of resources and increased costs. Meanwhile, during the reaction, the acidity or alkalinity (pH value) of the reaction system also has a significant impact on enzyme activity and the progress of the reaction. Different enzymes have optimal activity within different pH ranges. If the pH value of the reaction system deviates from the optimal activity range of the enzyme, the enzyme activity will be inhibited, thus affecting the reaction effect. Traditional catalytic cracking devices lack the function of real-time monitoring and adjustment of the pH value of the reaction system, making it difficult to ensure that the reaction is always carried out under suitable pH conditions. To address the aforementioned problems, this invention proposes a chemical and chemical engineering circulating catalytic cracking device and cracking method. Summary of the Invention

[0003] This invention provides a chemical and chemical engineering circulating catalytic cracking device and cracking method, which solves the problems of enzyme activity being easily affected by temperature, uneven mixing, difficulty in recovery, and difficulty in pH control in the prior art.

[0004] This invention provides the following technical solution: A chemical processing circulating catalytic cracking device includes a base, a filling tank fixedly installed on one side of the top of the base for storing enzyme solutions, and a heating element installed inside the filling tank for heating the enzyme solutions. The catalytic cracking device also includes: A conveying component is located at the top of the base, with one side of the conveying component connected to the bottom outlet of the filling tank, for conveying the enzyme solution in the filling tank; The pyrolysis unit is installed on top of the base and connected to the other side of the conveying unit. The pyrolysis unit is used to carry out the pyrolysis reaction of the raw materials.

[0005] In one possible design, the heating component includes a base plate fixedly installed inside a filling tank. An inner heating pipe is fixedly installed on the top of the base plate, and the top of the inner heating pipe is fixedly connected to the inner wall of the top of the filling tank. A filling pipe located inside the inner heating pipe is fixedly installed through the base plate. The top end of the filling pipe penetrates the inner wall of the top of the filling tank and is fixedly connected to the inner wall of the top of the filling tank. A venting mesh flush with the top of the filling tank is fixedly installed inside the filling pipe. The bottom end of the filling pipe is fixedly connected to the inner wall of the bottom of the filling tank. The filling pipe is connected to the bottom outlet of the filling tank. Flow holes are opened on the inner walls of the top on both sides of the filling pipe. Spiral blades located inside the inner heating pipe are fixedly sleeved on the filling pipe. Multiple heating rods are fixedly installed at equal intervals inside the filling tank. The same support ring is fixedly sleeved on the multiple heating rods. The multiple support rings are evenly spaced and used to heat the inner heating pipe. A feeding assembly is connected through the base plate. The bottom of the feeding assembly extends to the bottom of the base and is connected to the top of the base.

[0006] In one possible design, the feeding assembly includes two connecting pipes symmetrically fixedly mounted on a base plate. The bottom ends of the two connecting pipes are fixedly mounted with the same annular pipe located below the base plate. A feeding pump is fixedly mounted on one side of the top of the base. The suction end of the feeding pump is connected to a pipeline for conveying enzyme solution. A first conveying pipe is fixedly mounted on the output end of the feeding pump. The top end of the first conveying pipe extends into the annular pipe and is fixedly connected to one side of the bottom of the annular pipe.

[0007] In one possible design, two flow tubes are symmetrically fixedly installed on the base plate. The bottom end of the flow tube extends into the injection tube and is fixedly connected to the bottom inner wall of one side of the injection tube. A solenoid valve is fixedly installed inside the flow tube.

[0008] In one possible design, the conveying component includes a conveying pump fixedly installed on the top of the base, a conveying pipe fixedly installed on the suction end of the conveying pump, the top end of the conveying pipe extending into the bottom outlet of the filling tank and fixedly connected to the bottom outlet of the filling tank, a diversion box fixedly installed on the output end of the conveying pump, and multiple filling pipes fixedly installed at equal intervals on the top inner wall of the diversion box, the top ends of the multiple filling pipes being connected to the reaction component.

[0009] In one possible design, the pyrolysis component includes a reaction chamber fixedly mounted on top of a base. The tips of multiple injection tubes extend into the reaction chamber and are fixedly connected to the inner wall of one side of the top of the reaction chamber. A cover plate is hinged to the top opening of the reaction chamber. An arc-shaped support box is fixedly mounted inside the reaction chamber, and a heating frame is fixedly mounted inside the arc-shaped support box. A filter assembly is installed inside the heating frame to filter the enzyme during the reaction of the enzyme solution with the raw materials, allowing for enzyme recycling. A discharge pipe is fixedly mounted through the arc-shaped support box, with one end extending to the outside of the reaction chamber. The base... A mounting bracket corresponding to one end of the discharge pipe is fixedly installed on the top of the device. A discharge pump is fixedly installed on the top of the mounting bracket. The output end of the discharge pump is connected to an external conveying pipe. The conveying pipe is used to convey the products after the pyrolysis reaction is completed. A suction tube is fixedly installed on the suction end of the discharge pump. The bottom end of the suction tube extends into the discharge pipe and is fixedly connected to one end of the discharge pipe. A drive motor is fixedly installed on one side of the reaction chamber. The output shaft of the drive motor extends into the reaction chamber and is fixedly installed on a support tube. A stirring rack is fixedly installed on the support tube for mixing and stirring the raw materials and enzyme solution.

[0010] In one possible design, the filtration assembly includes a filter box fixedly installed inside an arc-shaped support box, a filter membrane fixedly installed inside the filter box for filtering enzymes, and the other end of the discharge pipe penetrating through the bottom inner wall of the filter box and fixedly connected to the bottom inner wall of the filter box.

[0011] In one possible design, a connecting box is fixedly installed inside the filter box, an air pump is fixedly installed on the other side of the reaction box, an air supply pipe is fixedly installed on the air pump's suction end, a heat exchange box is fixedly installed on the top inner wall of the cover plate, one end of the air supply pipe extends into the heat exchange box and is fixedly connected to the top inner wall of the cover plate, multiple one-way valves are fixedly installed at equal intervals through the bottom inner wall of the heat exchange box, the air pump's outlet end extends into the reaction box and is fixedly installed with a fixing pipe, the bottom end of the fixing pipe extends into the connecting box and is fixedly connected to the top inner wall of the connecting box, multiple arc-shaped nozzles are fixedly installed at equal intervals on the bottom inner wall of the connecting box, one end of each arc-shaped nozzle extends into the filter box and is fixedly connected to the top inner wall of the filter box, and spray holes corresponding to the filter membrane positions are opened on the inner walls of the arc-shaped nozzles.

[0012] In one possible design, a pH sensor is fixedly installed on one side of the reaction chamber, with one end extending into the chamber to detect the acidity or alkalinity of the solution. The pH sensor is located above the filter membrane, and a display screen is electrically connected to it via wires. The display screen is fixedly installed on the other side of the reaction chamber. A feed pump located outside the reaction chamber is fixedly installed on the reaction chamber and electrically connected to the display screen. A bend is fixedly installed on the output end of the feed pump, with one end extending into a support tube and rotatably connected to the inner wall of the support tube. Multiple feed holes are evenly spaced on the inner wall of the support tube. An installation tube is fixedly installed on the suction end of the feed pump, with connecting pipes fixedly installed at both ends. Electronic valves are installed inside the connecting pipes, with one end of each connecting pipe extending to both sides of the installation tube. The two connecting pipes are respectively connected to an external pipeline for conveying an acidic solution and a pipeline for conveying an alkaline solution.

[0013] A cracking method, applied in a chemical recycling catalytic cracking unit as described above, includes the following steps: S1. Preparation stage: Connect the suction end of the feed pump to the pipeline for conveying the enzyme solution, and connect the two connecting pipes to the external pipelines for conveying acidic solution and alkaline solution respectively, and connect the output end of the discharge pump to the external conveying pipeline. S2. Enzyme solution preheating: Start the feed pump to deliver the enzyme solution through the first delivery pipe to the annular pipe, and then through two connecting pipes to the inner heating pipe; energize the heating rod to heat the inner heating pipe, causing its own temperature to rise. The flow rate of the enzyme solution in the inner heating pipe is slowed down by the obstruction of the spiral blades, thus fully preheating the enzyme solution; when the enzyme solution level reaches the corresponding height of the two flow holes, the enzyme solution flows into the injection pipe. S3. Raw material injection: Open the cover plate on the top of the reaction chamber, inject the raw material into the reaction chamber, and then close the cover plate; S4. Enzyme solution delivery: Start the delivery pump to draw out the enzyme solution flowing into the injection pipe, and deliver it to the reaction tank through the distribution box and multiple injection pipes. S5. Reaction Condition Setting: Turn on the heating rack and adjust the temperature inside the reaction chamber to a suitable temperature; S6. Mixing and stirring: Start the drive motor to rotate the support tube, which in turn drives the stirring frame to rotate, mixing and stirring the raw materials and enzyme solution in the reaction tank to ensure thorough mixing and pyrolysis reaction; S7. pH Detection and Adjustment: The pH sensor is used to detect the pH of the solution in the reaction chamber. If the pH is unbalanced, the corresponding electronic valve is opened and the feed pump is started to inject the acidic or alkaline solution into the reaction chamber through the bend and feed hole to adjust the pH of the enzyme solution and raw materials in the reaction chamber. S8. Enzyme Filtration and Recycling: The product after the pyrolysis reaction flows into the filter box through the filter membrane, and then into the discharge pipe through the filter box. The enzyme in the enzyme solution cannot pass through the filter membrane, thus realizing the filtration and recycling of the enzyme. S9. Filter membrane cleaning: Start the air pump to deliver the gas in the heat exchange box to the connecting box through the gas supply pipe, air pump and fixed pipe. The gas entering the connecting box is dispersed and delivered to multiple arc-shaped nozzles, which disperse and blow the gas onto the filter box, causing the enzyme attached to the filter membrane to be blown off the filter membrane. At the same time, the negative pressure in the heat exchange box causes multiple one-way valves to open, drawing the gas in the reaction box into the heat exchange box. S10, Product Output: Start the discharge pump to extract the product flowing into the discharge pipe and transport it through the pipeline to the subsequent processing stage; S11. Replenish enzyme solution (if necessary): Open the two solenoid valves to allow the enzyme solution in the inner heating tube to flow downward through the two flow tubes into the injection tube, and then transport the enzyme solution to the pyrolysis unit through the conveying component.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention.

[0015] Beneficial effects: In this invention, the heating component allows the enzyme solution to be transported to the inner heating tube by connecting the feeding assembly to the external enzyme solution delivery pipe. When the heating rod is energized, the inner heating tube is heated, causing its temperature to rise. As the enzyme solution level gradually increases, the flow rate of the enzyme solution within the inner heating tube is slowed down by the obstruction of the spiral blades, thus preheating the enzyme solution. After the preheated enzyme solution reaches the height corresponding to the two flow holes, it flows into the injection pipe. Then, through the conveying component, the preheated enzyme solution is injected into the pyrolysis component. The preheated enzyme solution maintains good activity after being delivered to the pyrolysis component, eliminating the need for heating the enzyme solution during the pyrolysis reaction of the raw materials, thus preventing a reduction in reaction efficiency. In this invention, the enzyme solution flowing into the injection pipe can be drawn out by activating the delivery pump through the set delivery component. Then, through the distribution box and multiple injection pipes, the enzyme solution can be dispersed and delivered to the pyrolysis component, thereby enabling the enzyme solution to be uniformly mixed with the raw materials for pyrolysis reaction. In this invention, the pyrolysis component allows for the following steps: after the raw materials are injected into the reaction chamber, and the enzyme solution is then delivered into the reaction chamber via multiple injection tubes, the heating element can be energized to adjust the temperature inside the reaction chamber to a suitable level. The drive motor then rotates the support tube, which in turn rotates the stirring frame. This ensures thorough mixing of the raw materials and enzyme solution during the pyrolysis reaction. The pyrolysis product can pass through a filter assembly, while the enzyme in the enzyme solution cannot, allowing for enzyme recycling. The product flowing into the discharge pipe can be extracted by activating the discharge pump and then transported through pipelines for further processing. This facilitates the pyrolysis reaction of both the raw materials and the enzyme solution.

[0016] This invention reduces the impact of temperature on enzyme activity by preheating the enzyme solution, ensures uniform mixing by diversion and stirring, maintains suitable reaction conditions by real-time monitoring and adjustment of pH value, enables enzyme filtration and recycling, and can clean the filter membrane. It solves problems such as easily affected enzyme activity, uneven mixing, difficulty in enzyme recovery, and difficulty in pH control. Attached Figure Description

[0017] Figure 1 This is a first-view three-dimensional structural schematic diagram of the chemical and chemical engineering cycle catalytic cracking device provided in an embodiment of the present invention. Figure 2 This is a second-view three-dimensional structural schematic diagram of the chemical and chemical industry circulating catalytic cracking device provided in an embodiment of the present invention. Figure 3 This is a three-dimensional structural diagram of a chemical and chemical engineering cycle catalytic cracking device provided in an embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the chemical and chemical industry circulating catalytic cracking device provided in an embodiment of the present invention. Figure 5 This is a three-dimensional schematic diagram of the internal structure of the filling tank of the chemical and chemical industry circulating catalytic cracking device provided in an embodiment of the present invention; Figure 6 This is a three-dimensional cross-sectional schematic diagram of the filling tank structure of the chemical and chemical industry circulating catalytic cracking device provided in an embodiment of the present invention; Figure 7 This is a side cross-sectional view of the filling tank and internal heating pipe of the chemical and chemical industry circulating catalytic cracking device provided in an embodiment of the present invention; Figure 8 This is a three-dimensional schematic diagram of the connection structure between the feed pipe and the two flow pipes of the chemical and chemical industry circulating catalytic cracking device provided in an embodiment of the present invention. Figure 9 This is a three-dimensional schematic diagram of the cover opening structure of the chemical and chemical industry circulating catalytic cracking device provided in an embodiment of the present invention; Figure 10 This is a three-dimensional schematic diagram of the connection structure of the drive motor, support pipe, stirring frame and feed pump of the chemical and chemical circulating catalytic cracking device provided in the embodiment of the present invention.

[0018] Figure label: 1. Base; 2. Filling tank; 3. Internal heating element; 4. Injection pipe; 5. Flow hole; 6. Spiral blade; 7. Support ring; 8. Heating rod; 9. Ventilation mesh; 10. Base plate; 11. Connecting pipe; 12. Annular pipe; 13. Feed pump; 14. First conveying pipe; 15. Flow pipe; 16. Solenoid valve; 17. Conveying pipe; 18. Conveying pump; 19. Diverter box; 20. Filling pipe; 21. Reaction chamber; 22. Cover plate; 23. Arc-shaped support box; 24. Heating frame; 25. Filter box; 26. Filter membrane; 27. Connecting box; 271. Arc-shaped nozzle; 28. Air pump; 29. ​​Air supply pipe; 30. Heat exchange box; 31. One-way valve; 32. Drive motor; 33. Support pipe; 34. Feeding hole; 35. Mixing rack; 36. Feed pump; 37. Mounting pipe; 38. Connecting pipe; 39. Bend; 40. Fixing pipe; 41. Discharge pipe; 42. Mounting frame; 43. Discharge pump; 44. Suction pipe; 45. pH sensor; 46. Wire; 47. Display screen. Detailed Implementation

[0019] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0020] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of the present invention, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0021] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0022] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0023] References to "one embodiment" or "some embodiments" as used in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the invention. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized.

[0024] Example 1: Refer to Figure 1-10 A pyrolysis device includes a base 1, with a filling tank 2 fixedly mounted on one side of the top of the base 1. This filling tank 2 is used to store enzyme solution. A heating element is installed inside the filling tank 2 to preheat the enzyme solution. The device also includes a conveying element and a pyrolysis element located on top of the base 1. One side of the conveying element is connected to the discharge port at the bottom of the filling tank 2, responsible for conveying the preheated enzyme solution from the filling tank 2. The pyrolysis element is mounted on top of the base 1 and connected to the other side of the conveying element; its main function is to catalyze the pyrolysis reaction of the raw material.

[0025] like Figure 2As shown, the heating component inside the filling tank 2 specifically includes a base plate 10 fixedly installed inside the tank. An inner heating pipe 3 is fixedly installed on the top of the base plate 10, and the top end of the inner heating pipe 3 is fixedly connected to the inner wall of the top of the filling tank 2. A filling pipe 4 is fixedly installed through the base plate 10, and the filling pipe 4 is located inside the inner heating pipe 3. The top end of the filling pipe 4 penetrates through and is fixed to the inner wall of the top of the filling tank 2, while its bottom end is fixed to the inner wall of the bottom of the filling tank 2 and communicates with the bottom outlet of the filling tank 2. A venting mesh 9 is fixedly installed inside the filling pipe 4, and its position is flush with the top of the filling tank 2. Flow holes 5 are symmetrically opened on the inner walls of the top on both sides of the filling pipe 4. In order to slow down the flow rate of the enzyme solution, a spiral blade 6 is fixedly fitted on the filling pipe 4, and this spiral blade 6 is located inside the inner heating pipe 3. To heat the internal heating tube 3, multiple heating rods 8 are fixedly installed at equal intervals inside the filling tank 2. Multiple equally spaced support rings 7 are fixedly fitted onto these heating rods 8, providing support for the internal heating tube 3. The multiple heating rods 8 are used to heat the internal heating tube 3. A feeding assembly is also connected through the base plate 10, with its bottom extending below the base 1 and connecting to the top of the base 1. When enzyme solution needs to be added to the device, the feeding assembly is connected to an external enzyme solution delivery pipe. After the feeding assembly is started, the enzyme solution is delivered into the internal heating tube 3. At this time, the heating rods 8 are energized, and the heat generated by the heating rods 8 is transferred to the internal heating tube 3, raising its temperature. The enzyme solution flows upwards within the internal heating tube 3. During the flow, it is blocked by the spiral blades 6, slowing down the flow rate and allowing sufficient time for the internal heating tube 3 to heat it, achieving preheating. When the preheated enzyme solution level rises to the height of the flow hole 5, the enzyme solution flows into the filling pipe 4 through the flow hole 5. Preheated enzyme solutions retain good activity and do not require reheating when entering the lysis unit for subsequent reactions, thus helping to maintain reaction efficiency.

[0026] like Figure 2 As shown, the feeding assembly consists of two symmetrically fixed connecting pipes 11 mounted on the base plate 10. The bottom ends of the two connecting pipes 11 are connected to an annular pipe 12 located below the base plate 10. A feeding pump 13 is fixedly installed on one side of the top of the base 1. The suction end of the feeding pump 13 is used to connect to an external enzyme solution delivery pipeline. A first delivery pipe 14 is fixedly installed on the output end of the feeding pump 13. The top end of the first delivery pipe 14 extends upward and enters the annular pipe 12, and is fixedly connected to the bottom side of the annular pipe 12. When enzyme solution needs to be added, the feeding pump 13 is started, and the enzyme solution is pumped into the first delivery pipe 14, then into the annular pipe 12, and then evenly delivered to the internal heating pipe 3 through the two connecting pipes 11, thereby achieving stable and controllable delivery of the enzyme solution.

[0027] like Figure 7As shown, to ensure timely replenishment of enzyme solution during the reaction, two flow tubes 15 are symmetrically fixedly installed on the base plate 10. The bottom end of the flow tube 15 extends downward into the injection tube 4 and is fixedly connected to the inner wall of the bottom side of the injection tube 4. A solenoid valve 16 is fixedly installed inside each flow tube 15. After the enzyme solution in the injection tank 2 has been initially added and consumed by the reaction, the liquid level may drop below the flow orifice 5. At this time, if the reaction in the pyrolysis unit requires replenishment of enzyme solution, the two solenoid valves 16 can be opened. The remaining preheated enzyme solution stored in the internal heating tube 3 will flow directly into the bottom of the injection tube 4 through the flow tube 15, and then be drawn by the delivery component and replenished to the pyrolysis unit.

[0028] like Figure 4 As shown, the conveying component includes a conveying pump 18 fixedly mounted on the top of the base 1. A feed pipe 17 is connected to the suction end of the conveying pump 18, and the top end of the feed pipe 17 extends upward into and is fixed to the bottom outlet of the filling tank 2. The output end of the conveying pump 18 is connected to a distribution box 19. On the inner top wall of the distribution box 19, multiple filling pipes 20 are fixedly installed at equal intervals, and the top ends of these filling pipes 20 are all connected to the pyrolysis component. When it is necessary to send the preheated enzyme solution into the pyrolysis component, the conveying pump 18 is started. The conveying pump 18 draws the enzyme solution from the filling pipe 4 through the feed pipe 17 and pumps it into the distribution box 19. The distribution box 19 evenly distributes the enzyme solution into each filling pipe 20, and finally injects it into the pyrolysis component through multiple filling pipes 20. This multi-point filling method helps to uniformly mix the enzyme solution with the raw materials.

[0029] This application can be used in the field of bioreaction technology, or in other fields applicable to this application.

[0030] Example 2: Reference Figure 4 , Figure 9 and Figure 10Based on Example 1, an improvement is made to a chemical and chemical engineering circulating catalytic cracking device, which is applied to the field of bioreaction technology. The main body of the cracking component is a reaction chamber 21 fixedly installed on the top of the base 1. The top ends of the aforementioned multiple filling pipes 20 extend into the interior of the reaction chamber 21 and are fixed to the inner wall of its top side. The top of the reaction chamber 21 has an opening, and an openable cover plate 22 is installed at the opening via a hinge. An arc-shaped support box 23 is fixedly installed inside the reaction chamber 21. An electric heating frame 24 is fixedly installed inside the arc-shaped support box 23. When the electric heating frame 24 is energized, it can provide a suitable reaction temperature for the materials in the reaction chamber 21. A filter assembly is provided in the internal area of ​​the electric heating frame 24 for separating enzymes and products after the reaction, realizing the recycling of enzymes. A discharge pipe 41 is fixedly installed through the arc-shaped support box 23, and one end of the discharge pipe 41 extends to the outside of the reaction chamber 21. A mounting bracket 42 is fixedly installed on the top of the base 1, and the position of the mounting bracket 42 corresponds to the extended end of the discharge pipe 41. A discharge pump 43 is fixedly installed on the top of the mounting frame 42. The output end of the discharge pump 43 is used to connect to an external product delivery pipeline. A suction tube 44 is connected to the suction end of the discharge pump 43. The bottom end of the suction tube 44 extends downward and is inserted into the discharge pipe 41, and is fixedly connected to the opening of the discharge pipe 41. A drive motor 32 is fixedly installed on one side of the outer wall of the reaction chamber 21. The output shaft of the drive motor 32 extends horizontally into the reaction chamber 21, and a support tube 33 is fixedly installed at the shaft end. A stirring rack 35 is fixedly installed on the support tube 33. During the pyrolysis reaction, the raw material is first added from the opening at the top of the reaction chamber 21, and then the preheated enzyme solution is injected through the filling tube 20. The heating rack 24 is started to adjust the temperature inside the reaction chamber 21 to the optimal temperature range required for the enzyme catalytic reaction. At the same time, the drive motor 32 is started, which drives the support tube 33 and the stirring rack 35 to rotate, thoroughly stirring and mixing the raw material and enzyme solution to promote the catalytic pyrolysis reaction. After the reaction, the mixture passes through a filtration assembly. The pyrolysis products can pass through the filtration assembly, while the enzymes are retained. The retained enzymes can remain in the reaction system to continue participating in catalysis, thus realizing the recycling of enzymes. The products after passing through the filtration assembly are collected at the discharge pipe 41. The discharge pump 43 is started to extract the products and transport them to subsequent processes through external pipelines.

[0031] like Figure 4As shown, the filtration assembly specifically includes a filter box 25 fixedly installed inside the arc-shaped support box 23. A filter membrane 26 is fixedly installed inside the filter box 25. The pore size of the filter membrane 26 allows lysis products to pass through but retains enzyme molecules. The other end of the discharge pipe 41 extends upward through the bottom inner wall of the filter box 25 and is fixed thereto. After the reaction is complete, the lysis products in the reaction mixture pass through the filter membrane 26 under pressure or gravity, enter the interior of the filter box 25, and then flow into the connected discharge pipe 41. The enzyme, however, is blocked outside the filter box 25 by the filter membrane 26, thus achieving separation of the product and the enzyme, allowing the enzyme to be retained in the reaction system for recycling.

[0032] like Figure 4 As shown, to prevent excessive enzyme adhesion to the surface of the filter membrane 26 during filtration, which would affect filtration efficiency, a gas backflushing system is installed. A connecting box 27 is fixedly installed inside the filter box 25. An air pump 28 is fixedly installed on the outer wall of the other side of the reaction chamber 21. The suction end of the air pump 28 is connected to a gas delivery pipe 29, and the other end of the gas delivery pipe 29 extends upward, passes through the cover plate 22, and connects to the heat exchange box 30 fixedly installed on the inner wall of the top of the cover plate 22. On the inner wall of the bottom side of the heat exchange box 30, multiple one-way valves 31 are fixedly installed at equal intervals. These one-way valves 31 only allow gas to enter the heat exchange box 30 from inside the reaction chamber 21 and cannot flow in the reverse direction. The outlet end of the air pump 28 is connected to a fixed pipe 40, which extends downward, with its bottom end extending into the interior of the reaction chamber 21 and connecting to the top of the connecting box 27. Multiple arc-shaped nozzles 271 are fixedly installed at equal intervals on the bottom inner wall of the connecting box 27. The ends of these arc-shaped nozzles 271 extend into the filter box 25 and are fixed to the inner wall of the top side of the filter box 25. Several spray holes are opened on the inner wall of each arc-shaped nozzle facing the filter membrane 26. When it is necessary to clean the surface of the filter membrane 26, the air pump 28 is started. The air pump 28 draws the gas out of the heat exchange box 30 and pressurizes it into the connecting box 27 through the gas supply pipe 29, the air pump 28 body and the fixed pipe 40. After the gas is dispersed in the connecting box 27, it enters each arc-shaped nozzle 271 and finally blows it onto the surface of the filter membrane 26 at a certain pressure through the spray holes. This airflow can blow away the enzymes attached to the surface of the filter membrane 26, allowing them to re-enter the reaction solution and become free, thus maintaining the activity of the enzymes and maintaining the good permeability of the filter membrane 26. When the gas pump 28 draws gas from the heat exchange box 30, a negative pressure is created inside the heat exchange box 30. This causes the gas pressure inside the reaction chamber 21 to push the valve cores of multiple one-way valves 31 to move, opening the one-way valves 31 and allowing the gas inside the reaction chamber 21 to replenish the heat exchange box 30. This gas circulation mechanism ensures that the gas used when cleaning the filter membrane 26 has reached the reaction temperature inside the reaction system, avoiding temperature fluctuations inside the reaction chamber 21 caused by introducing cold air from the outside, which is beneficial for maintaining the stability of the pyrolysis reaction.

[0033] like Figure 7 and Figure 9 As shown, to monitor and adjust the pH of the reaction system in real time, a pH sensor 45 is fixedly installed on one side wall of the reaction chamber 21. The detection end of the pH sensor 45 extends into the reaction chamber 21 and is positioned above the filter membrane 26, for directly detecting the pH of the reaction solution. The pH sensor 45 is electrically connected to a display screen 47 via a wire 46. The display screen 47 is fixedly installed on the other side outer wall of the reaction chamber 21 for visually displaying the detected pH value. A feed pump 36 is also fixedly installed outside the reaction chamber 21. This feed pump 36 is electrically connected to the display screen 47 and can be automatically or manually controlled to start and stop based on the pH feedback signal. The output end of the feed pump 36 is connected to a bent pipe 39, one end of which extends into the reaction chamber 21 and is rotatably connected to the internal rotating support pipe 33 through a rotary sealing structure. Multiple feed holes 34 are evenly spaced on the wall of the support pipe 33. The suction end of the feed pump 36 is connected to an installation pipe 37, with a connecting pipe 38 at each end of the installation pipe 37. Each connecting pipe 38 contains a controlled electronic valve. These two connecting pipes 38 are used to connect to external pipelines for conveying acidic and alkaline solutions, respectively. When the enzyme solution undergoes a cleavage reaction with the raw materials, the pH sensor 45 continuously monitors the acidity or alkalinity of the reaction solution. Once the pH value deviates from the optimal reaction range, the control system issues a command based on the direction of the deviation (towards acidity or alkalinity). If adjustment is required, the electronic valve on the corresponding pipeline is opened, and the feed pump 36 is started. The feed pump 36 draws the acid or alkaline solution from the corresponding pipeline, pumps it through the installation pipe 37 and the bend 39 into the support pipe 33. The acid or alkaline solution is then evenly sprayed into the reaction solution in the reaction tank 21 from multiple feed holes 34 on the support pipe 33. Since the support tube 33 and the stirring rack 35 rotate synchronously, the acid or alkali solution can be quickly and evenly dispersed into the entire reaction system during the stirring process, thereby efficiently and accurately adjusting the pH value of the reaction solution back to the appropriate range, ensuring that the enzyme catalytic cleavage reaction continues to proceed efficiently.

[0034] This invention proposes a pyrolysis method for use in a chemical recycling catalytic pyrolysis unit as described above, comprising the following steps: S1. Preparation stage: Connect the suction end of the feed pump 13 to the pipeline for conveying enzyme solution, and connect the two connecting pipes 38 to the external pipelines for conveying acidic solution and alkaline solution respectively, and connect the output end of the discharge pump 43 to the external conveying pipeline. S2. Enzyme solution preheating: Start the feed pump 13 to deliver the enzyme solution through the first delivery pipe 14 to the annular pipe 12, and then through the two connecting pipes 11 to the inner heating pipe 3; energize the heating rod 8 to heat the inner heating pipe 3, causing the temperature of the inner heating pipe 3 to rise. Under the obstruction of the spiral blades 6, the flow rate of the enzyme solution in the inner heating pipe 3 is slowed down, and the enzyme solution is fully preheated; when the enzyme solution level reaches the corresponding height of the two flow holes 5, the enzyme solution flows into the injection pipe 4. S3. Raw material injection: Open the cover plate 22 on the top of the reaction chamber 21, inject the raw material into the reaction chamber 21, and then close the cover plate 22. S4. Enzyme solution delivery: Start the delivery pump 18 to draw out the enzyme solution flowing into the injection pipe 4, and deliver it to the reaction tank 21 through the distribution box 19 and multiple injection pipes 20. S5. Reaction condition setting: Turn on the heating rack 24 and adjust the temperature inside the reaction chamber 21 to a suitable temperature; S6. Mixing and stirring: Start the drive motor 32 to drive the support tube 33 to rotate, which in turn drives the stirring frame 35 to rotate, mixing and stirring the raw materials and enzyme solution in the reaction tank 21 to ensure that they are fully mixed for the pyrolysis reaction; S7. pH detection and adjustment: pH sensor 45 is used to detect the pH of the solution in reaction tank 21. If the pH is unbalanced, the corresponding electronic valve is opened and the feed pump 36 is started to inject the acidic or alkaline solution into the reaction tank 21 through the bend pipe 39 and feed hole 34 to adjust the pH of the enzyme solution and raw materials in the reaction tank 21. S8. Enzyme filtration and recycling: The product after the pyrolysis reaction flows into the filter box 25 through the filter membrane 26, and then into the discharge pipe 41 through the filter box 25. The enzyme in the enzyme solution cannot pass through the filter membrane 26, thus realizing the filtration and recycling of the enzyme. S9. Filter membrane cleaning: Start the air pump 28 to deliver the gas in the heat exchange box 30 through the air supply pipe 29, the air pump 28 and the fixed pipe 40 to the connecting box 27. The gas entering the connecting box 27 is dispersed and delivered to multiple arc-shaped nozzles 271, which disperse and blow the gas onto the filter box 25, causing the enzymes attached to the filter membrane 26 to be blown off the filter membrane 26. At the same time, the negative pressure in the heat exchange box 30 causes multiple one-way valves 31 to open, drawing the gas in the reaction box 21 into the heat exchange box 30. S10, Product Output: Start the discharge pump 43 to extract the product flowing into the discharge pipe 41 and transport it through the pipeline to the subsequent processing stage; S11. Replenish enzyme solution (if needed): Open the two solenoid valves 16 to allow the enzyme solution in the inner heating tube 3 to flow downward through the two flow tubes 15 to the injection tube 4, and then transport the enzyme solution to the pyrolysis unit through the conveying component.

[0035] However, as is well known to those skilled in the art, the working principles and wiring methods of the heating rod 8, feeding pump 13, solenoid valve 16, conveying pump 18, heating frame 24, drive motor 32, replenishing pump 36, discharging pump 43, pH detection sensor 45 and display screen 47 are commonplace and belong to conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0036] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A chemical chemical engineering circulating type catalytic cracking device, comprising a base (1), a filling tank (2) is fixedly installed on one side of the top of the base (1), and the filling tank (2) is used for storing enzyme solution, characterized in that, The filling tank (2) is provided with a heating component for heating the enzyme solution, and the catalytic cracking device further comprises: A conveying component is arranged on the top of the base (1), one side of the conveying component is connected with the bottom discharge port of the filling tank (2), and the conveying component is used for conveying the enzyme solution in the filling tank (2); A cracking component is arranged on the top of the base (1) and connected with the other side of the conveying component, and the cracking component is used for cracking the raw materials.

2. The chemical engineering cyclic catalytic cracking apparatus according to claim 1, characterized in that, The heating component comprises a bottom plate (10) fixedly arranged in the filling tank (2), an inner heating pipe (3) fixedly arranged on the top of the bottom plate (10), the top of the inner heating pipe (3) is fixedly connected with the inner wall of the top of the filling tank (2), an injection pipe (4) fixedly arranged in the inner heating pipe (3) penetrates through the bottom plate (10), the top end of the injection pipe (4) penetrates through the inner wall of the top of the filling tank (2) and is fixedly connected with the inner wall of the top of the filling tank (2), an air vent net (9) fixedly arranged in the injection pipe (4) is flush with the top of the filling tank (2), the bottom end of the injection pipe (4) is fixedly connected with the inner wall of the bottom of the filling tank (2), the injection pipe (4) is connected with the bottom discharge port of the filling tank (2), flow holes (5) are arranged on the inner walls of the top of the two sides of the injection pipe (4), a helical blade (6) fixedly arranged in the inner heating pipe (3) is fixedly arranged on the injection pipe (4), a plurality of electric heating rods (8) are fixedly arranged in the filling tank (2) at equal intervals, a same supporting ring (7) is fixedly arranged on the plurality of electric heating rods (8), the number of the supporting rings (7) is plural, the plurality of supporting rings (7) are arranged at equal intervals, the supporting rings (7) are used for heating the inner heating pipe (3), and a feeding assembly penetrates through the bottom plate (10) and is connected with the bottom plate (10).

3. The chemical engineering cyclic catalytic cracking apparatus according to claim 2, characterized in that, The feeding assembly comprises two connecting pipes (11) fixedly arranged on the bottom plate (10) at equal intervals, the bottom ends of the two connecting pipes (11) are fixedly connected with a same annular pipe (12) arranged below the bottom plate (10), a feeding pump (13) is fixedly arranged on one side of the top of the base (1), the suction end of the feeding pump (13) is connected with a pipeline for conveying the enzyme solution, a first conveying pipe (14) is fixedly arranged on the output end of the feeding pump (13), and the top end of the first conveying pipe (14) extends into the annular pipe (12) and is fixedly connected with one side of the bottom of the annular pipe (12).

4. The chemical engineering cyclic catalytic cracking apparatus according to claim 2, characterized in that, Two flow pipes (15) are fixedly arranged on the bottom plate (10) at equal intervals, the bottom ends of the flow pipes (15) extend into the injection pipe (4) and are fixedly connected with the inner walls of the bottom of one side of the injection pipe (4), and an electromagnetic valve (16) is fixedly arranged in each flow pipe (15).

5. The chemical engineering cyclic catalytic cracking apparatus according to claim 1, characterized in that, The conveying component includes a conveying pump (18) fixedly installed on the top of the base (1), a feeding pipe (17) fixedly installed on the suction end of the conveying pump (18), the top end of the feeding pipe (17) extending into and fixedly connected with the bottom discharge port of the filling tank (2), and a flow divider (19) fixedly installed on the output end of the conveying pump (18), a plurality of filling pipes (20) fixedly installed on the top inner wall of the flow divider (19) at equal intervals, and the top ends of the plurality of filling pipes (20) connected with the reaction component.

6. The chemical engineering cyclic catalytic cracking apparatus according to claim 5, characterized in that, The cracking component includes a reaction tank (21) fixedly installed on the top of the base (1), the top ends of the plurality of filling pipes (20) extending into and fixedly connected with the top inner wall on one side of the reaction tank (21), a cover plate (22) hingedly clamped on the top opening of the reaction tank (21), an arc-shaped support tank (23) fixedly installed in the reaction tank (21), an electric heating rack (24) fixedly installed in the arc-shaped support tank (23), a filter assembly arranged in the electric heating rack (24) to filter the enzyme when the enzyme solution and the raw material are reacted, so that the enzyme can be recycled, a discharge pipe (41) fixedly installed on the arc-shaped support tank (23) and extending to the outside of the reaction tank (21), a mounting bracket (42) fixedly installed on the top of the base (1) and corresponding to the position of one end of the discharge pipe (41), a discharge pump (43) fixedly installed on the top of the mounting bracket (42), the output end of the discharge pump (43) connected with an external conveying pipeline, the conveying pipeline used for conveying the product after the cracking reaction, a suction pipe (44) fixedly installed on the suction end of the discharge pump (43) and extending into the discharge pipe (41), the suction pipe (44) fixedly connected with one end of the discharge pipe (41), a drive motor (32) fixedly installed on one side of the reaction tank (21), an output shaft of the drive motor (32) extending into the reaction tank (21) and fixedly installed with a support pipe (33), and a stirring rack (35) fixedly installed on the support pipe (33) and used for mixing and stirring the raw material and the enzyme solution.

7. The chemical engineering cyclic catalytic cracking apparatus according to claim 6, characterized in that, The filter assembly includes a filter tank (25) fixedly installed on the inner side of the arc-shaped support tank (23), a filter membrane (26) fixedly installed on the inner side of the filter tank (25), the filter membrane (26) used for filtering the enzyme, and the other end of the discharge pipe (41) penetrating through and fixedly connected with the bottom inner wall of the filter tank (25).

8. The chemical engineering cyclic catalytic cracking apparatus according to claim 7, characterized in that, The filter box (25) is fixedly installed with a connecting box (27), the other side of the reaction box (21) is fixedly installed with an air pump (28), the air suction end of the air pump (28) is fixedly installed with a gas delivery pipe (29), the top inner wall of the cover plate (22) is fixedly installed with a heat exchange box (30), one end of the gas delivery pipe (29) extends into the heat exchange box (30) and is fixedly connected with the top side inner wall of the cover plate (22), a plurality of one-way valves (31) are fixedly installed on the bottom side inner wall of the heat exchange box (30) at equal intervals, the air outlet end of the air pump (28) extends into the reaction box (21) and is fixedly installed with a fixed pipe (40), the bottom end of the fixed pipe (40) extends into the connecting box (27) and is fixedly connected with the top inner wall of the connecting box (27), a plurality of arc-shaped spray pipes (271) are fixedly installed on the bottom inner wall of the connecting box (27) at equal intervals, one end of the plurality of arc-shaped spray pipes (271) extends into the filter box (25) and is fixedly connected with the top side inner wall of the filter box (25), and a spray hole corresponding to the position of the filter membrane (26) is formed in the inner wall of the arc-shaped spray pipe (271).

9. The chemical engineering cyclic catalytic cracking apparatus according to claim 1, characterized by, The side of the reaction box (21) is fixedly installed with a PH detection sensor (45), one end of the PH detection sensor (45) extends into the reaction box (21), which is used for detecting the acidity and alkalinity of the solution in the reaction box (21), the PH detection sensor (45) is located above the filter membrane (26), and the PH detection sensor (45) is electrically connected with a display screen (47) through a wire (46). The display screen (47) is fixedly installed on the other side of the reaction box (21), the reaction box (21) is fixedly installed with a material supplementing pump (36) located outside the reaction box (21), the material supplementing pump (36) is electrically connected with the display screen (47), a bend pipe (39) is fixedly installed on the output end of the material supplementing pump (36), one end of the bend pipe (39) extends into the support pipe (33) and is rotatably connected with the inner wall of the support pipe (33), a plurality of material delivery holes (34) are formed in the inner wall of the support pipe (33) at equal intervals, a mounting pipe (37) is fixedly installed on the suction end of the material supplementing pump (36), and butt joint pipes (38) are fixedly installed at two ends of the mounting pipe (37). The butt joint pipes (38) are provided with electronic valves, and one end of the two butt joint pipes (38) extends to the two sides of the mounting pipe (37), respectively. The two butt joint pipes (38) are connected with a pipeline for conveying acidic solution and a pipeline for conveying alkaline solution, respectively.

10. A cracking method applied in the chemical and chemical engineering cyclic catalytic cracking device according to any one of claims 1-9, characterized in that, The steps include: S1, preparation stage: the suction end of the material supplementing pump (13) is connected with the pipeline for conveying enzyme solution, the two butt joint pipes (38) are connected with the pipeline for conveying acidic solution and the pipeline for conveying alkaline solution, respectively, and the output end of the material supplementing pump (43) is connected with the external conveying pipeline; S2, enzyme solution preheating: start the feed pump (13), the enzyme solution is transported to the annular pipe (12) through the first conveying pipe (14), and then transported to the inner heating pipe (3) through the two connecting pipes (11); the electric heating rod (8) is powered on to heat the inner heating pipe (3), so that the temperature of the inner heating pipe (3) rises, and the flow rate of the enzyme solution in the inner heating pipe (3) is delayed under the blocking action of the spiral blade (6), so that the enzyme solution is preheated sufficiently; when the liquid level of the enzyme solution reaches the corresponding height of the two flow holes (5), the enzyme solution flows into the injection pipe (4); S3, raw material injection: open the cover plate (22) at the top of the reaction box (21), inject the raw material into the reaction box (21), and then close the cover plate (22); S4, enzyme solution delivery: start the delivery pump (18), suck the enzyme solution flowing into the injection pipe (4), and deliver the enzyme solution through the shunt box (19) and the plurality of filling pipes (20) to disperse the enzyme solution into the reaction box (21); S5, reaction condition setting: power on the electric heating rack (24) to adjust the temperature inside the reaction box (21) to a suitable temperature; S6, mixing and stirring: start the drive motor (32) to drive the support pipe (33) to rotate, and then drive the stirring rack (35) to rotate, so as to mix and stir the raw material and the enzyme solution in the reaction box (21) to make them fully mixed for cracking reaction; S7, pH detection and adjustment: use the PH detection sensor (45) to detect the pH value of the solution in the reaction box (21), if the pH value is unbalanced, according to the situation, open the corresponding electronic valve, start the feeding pump (36), inject the acidic or alkaline solution into the reaction box (21) through the elbow (39) and the feeding hole (34), and adjust the pH value of the enzyme solution and the raw material in the reaction box (21); S8, enzyme filtration and recycling: the product after cracking reaction flows into the filter box (25) through the filter membrane (26), and then flows into the discharge pipe (41) through the filter box (25), the enzyme in the enzyme solution cannot pass through the filter membrane (26), so as to realize the filtration and recycling of the enzyme; S9, filter membrane cleaning: start the air pump (28), and deliver the gas in the heat exchange box (30) to the connecting box (27) through the gas conveying pipe (29), the air pump (28) and the fixed pipe (40), the gas entering the connecting box (27) is dispersed and delivered to the plurality of arc-shaped jet pipes (271), the gas is dispersed and blown to the filter box (25), so that the enzyme attached to the filter membrane (26) is blown away from the filter membrane (26); at the same time, the negative pressure in the heat exchange box (30) makes the plurality of one-way valves (31) open, and the gas in the reaction box (21) is sucked into the heat exchange box (30); S10, product output: start the discharge pump (43) to pump out the product flowing into the discharge pipe (41) and deliver it to the subsequent processing link through the pipeline; S11, supplement enzyme solution (if necessary): open the two electromagnetic valves (16) to make the enzyme solution in the inner heating pipe (3) flow downward to the injection pipe (4) through the two flow pipes (15), and then deliver the enzyme solution to the cracking component through the conveying component.

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