Biomass pyrolysis and soil thermal desorption integrated equipment

Abstract

The invention discloses biomass pyrolysis and soil thermal desorption integrated equipment which comprises a pretreatment discharging hopper, a material guiding mechanism, a refining assembly, a material receiving hopper, a rotary type thermal processor and a gas spraying assembly. The pretreatment discharging hopper comprises a base and two sets of supporting columns symmetrically fixed to the base; the upper ends of the two sets of supporting columns are connected with a funnel body, two sets of blades are obliquely fixed to the two sides of the top of the funnel body, material crushing rollers are arranged below the two sets of blades, a first motor is arranged at one end of each material crushing roller, and the power output end of each first motor is connected with the corresponding material crushing roller. The material guiding mechanism comprises a material guiding inclined plate and a conveyor installed on the material guiding inclined plate, and the refining assembly is installed in the middle of the material guiding inclined plate. The biomass and soil heat treatment integrated equipment designed by the invention can realize crushing, conveying, rotary heat treatment external conduction, gas dust fall separation and hardening raw material crushing treatment of biomass or soil.

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 the ecological function of the soil, improve soil quality, reduce or eliminate harmful substances in the soil, and ultimately achieve sustainable use of the soil. The purpose 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, mineral mining, etc., which lead to excessive harmful substances in the soil and affect soil quality and ecological environment. Soil remediation methods and technologies 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, formulate and implement reasonable remediation plans, and 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, the existing methods for biomass pyrolysis and soil thermal desorption have the following problems: due to the difference in the heating methods of biomass pyrolysis and soil thermal desorption, the heating equipment for 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. Therefore, it is necessary to design corresponding technical solutions to solve the existing 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, there is a lack of equipment for biomass pyrolysis and soil thermal desorption, and 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: a biomass pyrolysis and soil thermal desorption integrated equipment, comprising a pretreatment feed hopper, a material guiding mechanism, a refinement component, a material receiving hopper, a rotary heat treatment device and a gas spraying component, wherein the pretreatment feed hopper 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 obliquely on both sides of the top of the funnel body, and crushing rollers are arranged 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 installed on the material guiding inclined plate, the refinement component is installed in the middle of the material guiding inclined plate, the material receiving hopper is vertically installed directly below the upper end of the material guiding inclined plate, the lower end of the material receiving hopper is connected to the rotary heat treatment device, and the tail of the rotary heat treatment device is connected to the gas spraying component through a pipeline;

[0006] The rotary heat treatment device comprises an outer cylinder, a second motor, a rotating rod, spiral blades, a segmented heater and a shredder, wherein a heating chamber is formed inside the outer cylinder, the second motor is mounted at the left end of the outer cylinder and the 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 shredder 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, and the plurality of groups of shredder blades are divided into a plurality of rows.

[0009] As a preferred embodiment of the present invention, the refinement component includes an outer shell, a cover body, a floating particle board, a guide column, a reset spring, a third motor, a rotating wheel and a toggle block. The outer shell is installed on the guide inclined plate, the cover body 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 reset spring is embedded in the guide column, the third motor is installed on the cover body 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 comprises a floating board and a plurality of groups of crushing rods fixed below the floating board, and the crushing rods are in a columnar structure.

[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 tube, 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 column is divided into several groups and is evenly installed at the bottom of the push plate, and the crushing column passes through the filter.

[0014] As a preferred embodiment of the present invention, the crushing column comprises a column body and a plurality of mounting plates evenly mounted on the surface of the column body, and a plurality 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 a device for heat treatment of biomass and soil. The integrated device includes a pretreatment feed hopper, a material guiding mechanism, a refinement component, a material receiving hopper, a rotary heat treatment device and a gas spray component. When the biomass or soil needs to be heat treated, the staff can introduce the biomass or soil from the pretreatment feed hopper and perform a primary refinement treatment. The refined raw materials are transported along the material guiding mechanism and subjected to a secondary refinement treatment by the refinement component during the transportation process. After the refinement is completed, the raw materials are introduced into the feed hopper, and then introduced into the rotary heat treatment device through the feed hopper. The raw materials are subjected to rotary heat treatment by the rotary heat treatment device. 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 treatment device, which can crush the hardened raw materials after the heat treatment, so as to facilitate subsequent reuse.

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

[0018] Figure 1 It is the overall structure 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 treatment device of the present invention;

[0021] Figure 4 It 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] In the figure: 1. receiving funnel; 2. base; 3. support column; 4. funnel body; 5. blade; 6. crushing roller; 7. motor 1; 8. guide inclined plate; 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 three; 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5The present invention provides a technical solution: a biomass pyrolysis and soil thermal desorption integrated equipment, including a pretreatment feed hopper, a material guiding mechanism, a refinement component, a receiving funnel 1, a rotary heat treatment device and a gas spray component. The pretreatment feed hopper includes 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 arranged below the two groups of blades 4. Crushing rollers 6 are arranged 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, and 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;

[0026] The rotary heat treatment device comprises an outer cylinder 10, a second motor 11, a rotating rod 12, a spiral blade 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. The rotating rod 12 drives the spiral blades 13 to rotate during the rotation process. The spiral blades 13 drive the material to perform 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 smoke 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 a plurality of groups of shredder blades 22 mounted on the surface of the roller body 21. The plurality of groups of shredder blades 22 are divided into a plurality of rows. The imported materials can be subjected to rotary shredding processing by the coordinated rotation of the two groups of shredder rollers 6.

[0029] Further improvement, such as Figure 2As shown, the refinement component includes a shell 23, a cover body 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. The shell 23 is installed on the guide inclined plate 8, the cover body 24 is installed 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 with the floating particle board 25, the return spring 27 is embedded in the guide column 26, the motor three 28 is installed on the cover body 24 and the power output end is connected with the rotating wheel 29, the toggle block 30 is divided into two groups and is symmetrically installed on the rotating wheel 29, the rotating wheel 29 is driven to rotate by the motor three 28, and the rotating wheel 29 drives the toggle block 30 to rotate synchronously during the rotation process, 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 crushing 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 structures. The crushing rods 32 are conical structures for easy 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 plate 34 and an electric heating plate 35. The arc plates 34 are divided into several groups and are evenly arranged in the heating chamber 16. Several groups of arc plates 34 are connected in parallel with the conductive wire 33 through lines. The electric heating plate 35 is installed on the inner side of the arc plate 34. The electric heating plate 35 is electrically heated 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 screen 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 tube 10, the discharge pipe 37 is vertically installed at the lower end of the tail pipe 36, the filter screen 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 screen 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 discharged downward through the filter screen 38 after refinement.

[0034] Specifically, the crushing column 41 includes a column 42 and several groups of mounting plates 43 evenly mounted on the surface of the column 42. Several groups of cone rods 44 are mounted at the bottom of the mounting plates 43. The cone rods 44 move downward to crush the introduced hardened raw materials, facilitating the discharge operation.

[0035] During use: when it is necessary to heat-treat biomass materials or soil, the materials are introduced from the hopper 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 materials. The crushed materials are introduced to the material guide mechanism for lateral conveying. During the conveying process, the rotating wheel 29 is driven to rotate by the motor 3 28. During the rotation process, the rotating wheel 29 drives the toggle block 30 to rotate synchronously. The toggle block 30 acts on the floating crushing plate 25 to achieve the up and down floating adjustment of the floating crushing plate 25. The crushing rod 32 is used to further refine the materials below. After the secondary refinement is completed, it is introduced into the receiving hopper 1 and introduced into the heating chamber 16, and the rotation is driven 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 powered on 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, so as to 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 supply 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 to facilitate subsequent material processing.

[0036] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not 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 are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0038] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; 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 description is only a preferred embodiment of the present invention and is 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 can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A biomass pyrolysis and soil thermal desorption integrated equipment, characterized in that: The invention comprises a pretreatment material discharge funnel, a material guiding mechanism, a refinement component, a material receiving funnel (1), a rotary heat treatment device and a gas spray component. The pretreatment material 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 (4) are fixed in an inclined manner on both sides of the top of the funnel body (4). Crushing rollers (6) are arranged below the two groups of blades (4). A motor (7) is arranged 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 guiding mechanism is arranged at the lower end of the funnel body (4) in an inclined shape, the material guiding mechanism comprises a material guiding inclined plate (8) and a conveyor (9) installed on the material guiding inclined plate (8), the refinement component is installed in the middle of the material guiding inclined plate (8), the material receiving funnel (1) is vertically installed just below the upper end of the material guiding inclined plate (8), the lower end of the material receiving funnel (1) is connected to the rotary heat treatment device, and the tail of the rotary heat treatment device is connected to the gas spray component through a pipeline; The rotary heat treatment device comprises an outer cylinder (10), a second motor (11), a rotating rod (12), a spiral blade (13), a segmented heater (14) and a pulverizer (15); a heating chamber (16) is formed inside the outer cylinder (10); the second motor (11) is mounted 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 a plurality of groups and are evenly mounted on the rotating rod (12); the segmented heater (14) is mounted below the heating chamber (16); and the pulverizer (15) is mounted 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 crushing roller (6) comprises a roller body (21) and a plurality of groups of crushing blades (22) mounted on the surface of the roller body (21), wherein the plurality of groups of crushing blades (22) are divided into a plurality of rows.

3. The integrated biomass pyrolysis and soil thermal desorption equipment according to claim 1 is characterized by: The thinning component comprises a shell (23), a cover (24), a floating particle board (25), a guide column (26), a reset spring (27), a motor three (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 column (26) is divided into two groups and passes through the shell (23) to be connected with the floating particle board (25), the reset 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 with 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 equipment for biomass pyrolysis and soil thermal desorption 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 in a columnar structure.

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

6. The integrated equipment for biomass pyrolysis and soil thermal desorption 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 a plurality of groups and are evenly arranged in the heating chamber (16); the plurality of groups of the arc-shaped plates (34) are connected in parallel with the conductive wire (33) via 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 a plurality of groups and is 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 at the bottom of the mounting plates (43).

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