An integrated equipment for biomass pyrolysis and soil thermal desorption

Abstract

The present invention discloses an integrated biomass pyrolysis and soil thermal desorption device, comprising a pretreatment feed hopper, a material guide mechanism, a refinement assembly, a receiving hopper, a rotary heat treatment device, and a gas spray assembly. The pretreatment feed hopper comprises a base and two sets of support columns symmetrically fixed to the base. The upper ends of the two sets of support columns are connected to the funnel body. Two sets of blades are fixed at an angle on both sides of the top of the funnel body. A crushing roller is provided below each set of blades. One end of the crushing roller is provided with a motor 1, and the power output end of the motor 1 is connected to the crushing roller. The material guide mechanism is arranged at an angle at the lower end of the funnel body. The material guide mechanism includes a material guide inclined plate and a conveyor mounted on the material guide inclined plate. The refinement assembly is mounted in the middle of the material guide inclined plate. The integrated biomass and soil thermal treatment device designed by the present invention can achieve biomass or soil fragmentation, conveying, rotary heat treatment external guidance, gas dust separation, and hardened raw material fragmentation.

Description

Technical Field

[0001] The present invention relates to the technical field of soil remediation, and in particular to an integrated device for biomass pyrolysis and soil thermal desorption. Background Art

[0002] Soil remediation refers to the management and restoration of polluted or damaged soil to restore its ecological functions, improve soil quality, reduce or eliminate harmful substances in the soil, and ultimately achieve sustainable soil use. The goal of soil remediation is to protect the environment and maintain ecological balance, while also contributing to human health and sustainable development. Soil pollution can be caused by various human and natural factors, such as industrial waste discharge, pesticide use, and mineral mining, which can lead to excessive levels of harmful substances in the soil, affecting soil quality and the ecological environment. Soil remediation methods and techniques include physical methods (such as soil stripping and excavation), chemical methods (such as chemical reduction and oxidation), biological methods (such as phytoremediation and microbial remediation), etc. Different remediation measures are taken for different types and degrees of pollution. Soil remediation is a comprehensive and systematic project. It is usually necessary to consider factors such as the degree of soil pollution, the type of pollutants, the soil type, the feasibility and economy of the remediation technology, and formulate and implement reasonable remediation plans. Successful soil remediation can restore soil functions, improve soil quality, reduce environmental risks, and promote ecological restoration and sustainable development. There are various ways to remediate soil, including thermal desorption technology, which desorbs or releases water, gas, and organic matter from the surface of soil particles by heating, thereby treating the harmful substances contained therein. Biomass materials can produce a large amount of energy products by pyrolysis, but the heating methods of the two are often different, so different equipment is usually used to treat soil or biomass.

[0003] However, existing methods for biomass pyrolysis and soil thermal desorption have the following problems: Due to the different heating methods of biomass pyrolysis and soil thermal desorption, the heating equipment for both is not universal, and there is a lack of equipment suitable for biomass pyrolysis and soil thermal desorption. In addition, during the biomass pyrolysis and soil thermal desorption process, the biomass material and soil will harden, and there is no means to deal with the hardened material. Therefore, it is necessary to design corresponding technical solutions to solve these technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated device for biomass pyrolysis and soil thermal desorption, which solves the technical problem that due to the difference in heating methods of biomass pyrolysis and soil thermal desorption, the heating equipment of the two is not universal, and there is a lack of equipment for biomass pyrolysis and soil thermal desorption. In addition, during the process of biomass pyrolysis and soil thermal desorption, the biomass material and soil will harden, and there is a lack of means to treat the hardened material.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated device for biomass pyrolysis and soil thermal desorption, comprising a pretreatment discharge funnel, a material guiding mechanism, a refinement component, a material receiving funnel, a rotary heat processor and a gas spray component, wherein the pretreatment discharge funnel comprises a base and two groups of support columns symmetrically fixed on the base, the upper ends of the two groups of support columns are connected to a funnel body, two groups of blades are fixed at an angle on both sides of the top of the funnel body, and a crushing roller is provided below the two groups of blades, one end of the crushing roller is provided with a motor 1, and the power output end of the motor 1 is connected to the crushing roller, the material guiding mechanism is obliquely arranged at the lower end of the funnel body, the material guiding mechanism comprises a material guiding inclined plate and a conveyor mounted on the material guiding inclined plate, the refinement component is mounted on the middle part of the material guiding inclined plate, the material receiving funnel is vertically mounted directly below the upper end of the material guiding inclined plate, the lower end of the material receiving funnel is connected to the rotary heat processor, and the tail of the rotary heat processor is connected to the gas spray component through a pipeline;

[0006] The rotary heat processor includes an outer cylinder, a second motor, a rotating rod, spiral blades, a segmented heater, and a pulverizer. A heating chamber is formed inside the outer cylinder. The second motor is mounted at the left end of the outer cylinder and its power output end is connected to the rotating rod. The spiral blades are divided into several groups and are evenly mounted on the rotating rod. The segmented heater is mounted below the heating chamber, and the pulverizer is mounted at the right end of the outer cylinder.

[0007] The gas spray assembly includes an air pipe, a drainage air column, a spray plate and a water pipe. One end of the air pipe is connected to the outer cylinder and the other end is connected to the drainage air column. The spray plate is installed in the drainage air column and connected to the water pipe.

[0008] As a preferred embodiment of the present invention, the shredder roller comprises a roller body and a plurality of groups of shredder blades mounted on the surface of the roller body, wherein the plurality of groups of shredder blades are divided into a plurality of rows.

[0009] As a preferred embodiment of the present invention, the refining component includes an outer shell, a cover, a floating particle board, a guide column, a return spring, a third motor, a rotating wheel and a toggle block. The outer shell is installed on the guide inclined plate, the cover is installed on the top of the outer shell, the floating particle board is movably arranged in the outer shell, the guide columns are divided into two groups and pass through the outer shell to be connected with the floating particle board, the return spring is embedded in the guide column, the third motor is installed on the cover and the power output end is connected to the rotating wheel, and the toggle block is divided into two groups and is symmetrically installed on the rotating wheel.

[0010] As a preferred embodiment of the present invention, the floating particle board includes a floating plate and a plurality of groups of crushing rods fixed below the floating plate, and the crushing rods are columnar structures.

[0011] As a preferred embodiment of the present invention, the toggle block is in a fan-shaped structure and the width of one end is smaller than the width of the other end, and the toggle block is used in conjunction with a floating plate.

[0012] As a preferred embodiment of the present invention, the segmented heater includes a conductive wire, an arc-shaped plate and an electric heating plate. The arc-shaped plates are divided into several groups and are evenly arranged in the heating chamber. Several groups of the arc-shaped plates are connected in parallel with the conductive wire through circuits, and the electric heating plate is installed on the inner side of the arc-shaped plate.

[0013] As a preferred embodiment of the present invention, the crusher includes a tail pipe, a discharge pipe, a filter, an electric push rod, a push plate and a crushing column. The tail pipe is installed at the tail of the outer cylinder, the discharge pipe is vertically installed at the lower end of the tail pipe, the filter is installed at the connection between the tail pipe and the discharge pipe, the electric push rod is installed at the top of the tail pipe and the power output end is connected to the push plate, the crushing columns are divided into several groups and are evenly installed at the bottom of the push plate, and the crushing columns pass through the filter.

[0014] As a preferred embodiment of the present invention, the crushing column includes a column body and several groups of mounting plates evenly mounted on the surface of the column body, and several groups of cone rods are mounted on the bottom of the mounting plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention designs an apparatus for heat treatment of biomass and soil, the integrated apparatus comprises a pretreatment discharge funnel, a material guiding mechanism, a refinement component, a material receiving funnel, a rotary heat processor and a gas spray component. When heat treatment of biomass or soil is required, the staff can introduce the biomass or soil from the pretreatment discharge funnel and perform a first refinement treatment. The refined raw materials are conveyed along the material guiding mechanism and subjected to a second refinement treatment by the refinement component during the conveying process. After the refinement is completed, the raw materials are introduced into the receiving funnel, and then introduced into the rotary heat processor through the receiving funnel. The raw materials are subjected to rotary heat treatment by the rotary heat processor. The gas generated during the heat treatment is guided outward along the gas spray component and subjected to dust reduction treatment. In addition, a crusher is provided at the tail of the rotary heat processor, which can crush the hardened raw materials after the heat treatment to facilitate subsequent reuse.

[0017] 2. The integrated biomass and soil heat treatment equipment designed in the present invention can realize the crushing, transportation, rotary heat treatment external conduction, gas dust separation and hardened raw material crushing of biomass or soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structural diagram of the present invention;

[0019] Figure 2 This is a detailed component structure diagram of the present invention;

[0020] Figure 3 This is a structural diagram of the rotary heat processor of the present invention;

[0021] Figure 4 This is a cross-sectional view of the segmented heater of the present invention;

[0022] Figure 5 This is a structural diagram of the crusher described in the present invention.

[0023] Figure: 1. Receiving hopper; 2. Base; 3. Support column; 4. Hopper body; 5. Blades; 6. Crushing roller; 7. Motor 1; 8. Guide ramp; 9. Conveyor; 10. Outer cylinder; 11. Motor 2; 12. Rotating rod; 13. Spiral blade; 14. Segmented heater; 15. Crusher; 16. Heating chamber; 17. Air pipe; 18. Drainage air column; 19. Spray plate; 20. Water pipe; 21. Roller body; 22. Crushing blade. 23. Casing; 24. Cover; 25. Floating chipboard; 26. Guide column; 27. Return spring; 28. Motor 3; 29. ​​Rotating wheel; 30. Toggle block; 31. Floating plate; 32. Crushing rod; 33. Conductive wire; 34. Arc plate; 35. Electric heating plate; 36. Tail pipe; 37. Discharge pipe; 38. Filter; 39. Electric push rod; 40. Push plate; 41. Chip column; 42. Column; 43. Mounting plate; 44. Cone rod. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5The present invention provides a technical solution: an integrated device for biomass pyrolysis and soil thermal desorption, comprising a pretreatment feed hopper, a material guiding mechanism, a refinement component, a feed hopper 1, a rotary heat processor and a gas spray component. The pretreatment feed hopper comprises a base 2 and two groups of support columns 3 symmetrically fixed on the base 2. The upper ends of the two groups of support columns 3 are connected to a funnel body 4. Two groups of blades 4 are fixed on both sides of the top of the funnel body 4 in an inclined shape. Crushing rollers 6 are provided below the two groups of blades 4. A motor 7 is provided at one end of the material roller 6, and the power output end of the motor 7 is connected to the crushing roller 6. The material guide mechanism is arranged at the lower end of the funnel body 4 in an inclined shape. The material guide mechanism includes a material guide inclined plate 8 and a conveyor 9 installed on the material guide inclined plate 8. The thinning component is installed in the middle of the material guide inclined plate 8. The material receiving funnel 1 is vertically installed just below the upper end of the material guide inclined plate 8. The lower end of the material receiving funnel 1 is connected to the rotary heat processor, and the tail end of the rotary heat processor is connected to the gas spray component through a pipeline.

[0026] The rotary heat processor includes an outer cylinder 10, a second motor 11, a rotating rod 12, spiral blades 13, a segmented heater 14, and a crusher 15. A heating chamber 16 is formed inside the outer cylinder 10. The second motor 11 is installed at the left end of the outer cylinder 10 and the power output end is connected to the rotating rod 12. The spiral blades 13 are divided into several groups and are evenly installed on the rotating rod 12. The segmented heater 14 is installed below the heating chamber 16. The crusher 15 is installed at the right end of the outer cylinder 10. The rotating rod 12 is driven to rotate by the second motor 11. During the rotation process, the rotating rod 12 drives the spiral blades 13 to rotate. The spiral blades 13 drive the material to undergo horizontal rotary heat treatment.

[0027] The gas spray assembly includes an air pipe 17, a drainage air column 18, a spray plate 19 and a water pipe 20. One end of the air pipe 17 is connected to the outer tube 10 and the other end is connected to the drainage air column 18. The spray plate 19 is installed in the drainage air column 18 and connected to the water pipe 20. The generated flue gas is introduced into the drainage air column 18 through the air pipe 17 and sprayed through the spray plate 19 for dust reduction treatment.

[0028] Further improvement, such as Figure 1 As shown, the shredder roller 6 includes a roller body 21 and several groups of shredder blades 22 installed on the surface of the roller body 21. The several groups of shredder blades 22 are divided into several rows. Through the coordinated rotation of the two groups of shredder rollers 6, the introduced materials can be subjected to rotary shredding processing.

[0029] Further improvement, such as Figure 2As shown, the refining component includes a shell 23, a cover 24, a floating particle board 25, a guide column 26, a return spring 27, a third motor 28, a rotating wheel 29 and a toggle block 30. The shell 23 is mounted on the guide inclined plate 8, the cover 24 is mounted on the top of the shell 23, the floating particle board 25 is movably arranged in the shell 23, the guide columns 26 are divided into two groups and pass through the shell 23 to be connected to the floating particle board 25, the return spring 27 is embedded in the guide columns 26, the third motor 28 is mounted on the cover 24 and the power output end is connected to the rotating wheel 29, the toggle block 30 is divided into two groups and is symmetrically mounted on the rotating wheel 29, the rotating wheel 29 is driven to rotate by the third motor 28, and the rotating wheel 29 drives the toggle block 30 to rotate synchronously during the rotation process, and the toggle block 30 acts on the floating particle board 25 to realize the up and down floating adjustment of the floating particle board 25, and the material below is further refined by the crushing rod 32.

[0030] Further improvement, such as Figure 2 As shown, the floating chipping plate 25 includes a floating plate 31 and a plurality of crushing rods 32 fixed below the floating plate 31. The crushing rods 32 are columnar and conical in structure to facilitate crushing.

[0031] Further improvement, such as Figure 2 As shown, the toggle block 30 is fan-shaped and one end is smaller than the other end. The toggle block 30 is used in conjunction with the floating plate 31. The toggle block 30 acts on the floating particle board 25 to adjust the floating particle board 25 up and down.

[0032] Further improvement, such as Figure 4 As shown, the segmented heater 14 includes a conductive wire 33, an arc-shaped plate 34 and an electric heating plate 35. The arc-shaped plates 34 are divided into several groups and are evenly arranged in the heating chamber 16. Several groups of arc-shaped plates 34 are connected in parallel with the conductive wire 33 through a circuit. The electric heating plate 35 is installed on the inner side of the arc-shaped plate 34. The electric heating plate 35 is energized to generate heat and perform heat treatment on the biomass or soil.

[0033] Further improvement, such as Figure 5As shown, the crusher 15 includes a tail pipe 36, a discharge pipe 37, a filter 38, an electric push rod 39, a push plate 40 and a crushing column 41. The tail pipe 36 is installed at the tail end of the outer cylinder 10, the discharge pipe 37 is vertically installed at the lower end of the tail pipe 36, the filter 38 is installed at the connection between the tail pipe 36 and the discharge pipe 37, the electric push rod 39 is installed at the top of the tail pipe 36 and the power output end is connected to the push plate 40, the crushing column 41 is divided into several groups and is evenly installed at the bottom of the push plate 40, the crushing column 41 passes through the filter 38, and when the biomass material or soil is heat-treated, it is introduced into the tail pipe 36, and the push plate 40 is pushed downward by the electric push rod 39. During the movement, the biomass material or soil is refined by the crushing column 41 and then discharged through the filter 38.

[0034] Specifically, the crushing column 41 includes a column 42 and several groups of mounting plates 43 evenly installed on the surface of the column 42. Several groups of cone rods 44 are installed at the bottom of the mounting plates 43. The cone rods 44 move downward to crush the imported hardened raw materials, making it easier to discharge them.

[0035] During use: When biomass materials or soil need to be heat-treated, the material is introduced from the funnel body 4, and the crushing rollers 6 are first driven to rotate by the motor 1 7. The two crushing rollers 6 rotate in coordination to perform rotary crushing on the introduced material. The crushed material is introduced into the material guide mechanism for horizontal conveying. During the conveying process, the rotating wheel 29 is driven to rotate by the motor 3 28. The rotating wheel 29 drives the toggle block 30 to rotate synchronously during the rotation. The toggle block 30 acts on the floating chipping plate 25 to achieve the up and down floating adjustment of the floating chipping plate 25. The material below is further refined by the crushing rod 32. After the secondary refinement is completed, it is introduced into the receiving funnel 1 and introduced into the heating chamber 16, and is driven to rotate by the motor 2 11. The rod 12 rotates, and the rotating rod 12 drives the spiral blade 13 to rotate during the rotation process. The spiral blade 13 drives the material to rotate in a mobile manner. At the same time, the electric heating plate 35 is energized for heating to generate heat and heat-treat the biomass or soil. The power of each electric heating plate 35 is different, increasing from left to right, which can achieve the purpose of gradual heating of the electric heating plate 35. During the heating process, the generated flue gas is introduced into the drainage air column 18 through the air pipe 17 and sprayed through the spray plate 19 for dust reduction treatment. After the heat treatment of the material is completed, it is introduced into the tail pipe 36, and the push plate 40 is pushed downward by the electric push rod 39. During the movement, the biomass material or soil is refined through the crushing column 41, and the refined material is discharged through the filter screen 38 for subsequent material processing.

[0036] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0038] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A biomass pyrolysis and soil thermal desorption integrated equipment, characterized by: The invention comprises a pre-treatment discharge funnel, a material guiding mechanism, a refinement component, a material receiving funnel (1), a rotary heat treatment device and a gas spray component, wherein the pre-treatment discharge funnel comprises a base (2) and two groups of support columns (3) symmetrically fixed on the base (2), the upper ends of the two groups of support columns (3) are connected to a funnel body (4), two groups of blades (5) are fixed on both sides of the top of the funnel body (4) in an inclined shape, and a crushing roller (6) is provided below the two groups of blades (5), and a motor (7) is provided at one end of the crushing roller (6). The power output end of the motor 1 (7) is connected to the crushing roller (6), the material guide mechanism is arranged at the lower end of the funnel body (4) in an inclined shape, the material guide mechanism includes a material guide inclined plate (8) and a conveyor (9) installed on the material guide inclined plate (8), the refinement component is installed in the middle of the material guide inclined plate (8), the material receiving funnel (1) is vertically installed just below the upper end of the material guide inclined plate (8), the lower end of the material receiving funnel (1) is connected to the rotary heat processor, and the tail of the rotary heat processor is connected to the gas spray component through a pipeline; The rotary heat processor comprises an outer cylinder (10), a second motor (11), a rotating rod (12), spiral blades (13), a segmented heater (14) and a crusher (15); a heating chamber (16) is formed inside the outer cylinder (10); the second motor (11) is installed at the left end of the outer cylinder (10) and the power output end is connected to the rotating rod (12); the spiral blades (13) are divided into several groups and are evenly installed on the rotating rod (12); the segmented heater (14) is installed below the heating chamber (16); and the crusher (15) is installed at the right end of the outer cylinder (10); The gas spray assembly comprises an air delivery pipe (17), a drainage air column (18), a spray plate (19) and a water delivery pipe (20). One end of the air delivery pipe (17) is connected to the outer cylinder (10) and the other end is connected to the drainage air column (18). The spray plate (19) is installed in the drainage air column (18) and connected to the water delivery pipe (20).

2. The integrated biomass pyrolysis and soil thermal desorption equipment according to claim 1, characterized in that: The shredding roller (6) comprises a roller body (21) and a plurality of groups of shredding blades (22) mounted on the surface of the roller body (21), wherein the plurality of groups of shredding blades (22) are divided into a plurality of rows.

3. The integrated biomass pyrolysis and soil thermal desorption equipment according to claim 1, characterized in that: The refinement assembly comprises a shell (23), a cover (24), a floating particle board (25), a guide column (26), a return spring (27), a motor three (28), a rotating wheel (29) and a toggle block (30), wherein the shell (23) is mounted on the guide inclined plate (8), the cover (24) is mounted on the top of the shell (23), the floating particle board (25) is movably arranged in the shell (23), the guide column (26) is divided into two groups and passes through the shell (23) to be connected to the floating particle board (25), the return spring (27) is embedded in the guide column (26), the motor three (28) is mounted on the cover (24) and the power output end is connected to the rotating wheel (29), and the toggle block (30) is divided into two groups and is symmetrically mounted on the rotating wheel (29).

4. The integrated biomass pyrolysis and soil thermal desorption equipment according to claim 3, characterized in that: The floating particle board (25) comprises a floating board (31) and a plurality of groups of crushing rods (32) fixed below the floating board (31), wherein the crushing rods (32) are columnar structures.

5. The integrated biomass pyrolysis and soil thermal desorption equipment according to claim 4, characterized in that: The toggle block (30) is in a fan-shaped structure, and the width of one end is smaller than the width of the other end. The toggle block (30) is used in conjunction with the floating plate (31).

6. The integrated biomass pyrolysis and soil thermal desorption equipment according to claim 1, characterized in that: The segmented heater (14) comprises a conductive wire (33), an arc-shaped plate (34) and an electric heating plate (35); the arc-shaped plates (34) are divided into several groups and are evenly arranged in the heating chamber (16); several groups of the arc-shaped plates (34) are connected in parallel with the conductive wire (33) through a circuit; and the electric heating plate (35) is installed on the inner side of the arc-shaped plate (34).

7. The integrated biomass pyrolysis and soil thermal desorption equipment according to claim 1, characterized in that: The crusher (15) comprises a tail pipe (36), a discharge pipe (37), a filter (38), an electric push rod (39), a push plate (40) and a crushing column (41). The tail pipe (36) is installed at the tail of the outer cylinder (10). The discharge pipe (37) is vertically installed at the lower end of the tail pipe (36). The filter (38) is installed at the connection between the tail pipe (36) and the discharge pipe (37). The electric push rod (39) is installed at the top of the tail pipe (36) and the power output end is connected to the push plate (40). The crushing column (41) is divided into several groups and evenly installed at the bottom of the push plate (40). The crushing column (41) passes through the filter (38).

8. The integrated biomass pyrolysis and soil thermal desorption equipment according to claim 7, characterized in that: The crushing column (41) comprises a column (42) and a plurality of mounting plates (43) evenly mounted on the surface of the column (42), and a plurality of cone rods (44) are mounted on the bottom of the mounting plates (43).

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