An internal heating type carbonization test cooling delamination sampling device

Abstract

The application discloses a cooling and layered sampling device for internal heating type carbonization test, and belongs to the technical field of biomass pyrolysis and carbonization, which comprises a carbon pushing mechanism, a sealed cooling and layered mechanism and a layered sampler; the sealed cooling and layered mechanism is detachably connected to an internal heating type carbonization furnace, and the carbon pushing mechanism pushes carbonization products into the sealed cooling and layered mechanism; and the layered sampler samples the carbonization products in the sealed cooling and layered mechanism layer by layer; the sampler is proposed for the first time for internal heating type pyrolysis and carbonization test, and fills the current technical gap; the sealed cooling, layered sampling and other functions are integrated; the biochar can be rapidly cooled, and the problem that the biochar is still in the heat preservation carbonization process during sampling is solved; the sealed cooling can prevent the high-temperature biochar just after carbonization from burning after meeting oxygen; the layered sampling can be implemented without damaging the structure of the carbonization layer, and the layered precision is high; the device has the advantages of simple structure and easy operation, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of cooling delamination sampling device for internal heating type carbonization test, belong to biomass pyrolysis carbonization technical field. BACKGROUND

[0002] It is of great significance to study the influence of pyrolysis reaction of biomass and temperature, residence time, atmosphere, pressure, catalyst and other factors on improving the quality of produced biochar, gasification and combustion reaction efficiency, and reducing their pollutant emissions. When testing pyrolysis biochar, the carbonization time needs to be controlled, and the pyrolysis completed biochar needs to be cooled quickly during sampling. The sealing needs to be ensured during the cooling process to avoid combustion of high-temperature biochar just after carbonization. Finally, the biochar is delaminated and sampled.

[0003] Most of the sampling devices on the market are too simple in structure and cannot complete the work according to the above conditions. Moreover, the preparation devices are various in types. For example, patent No. CN 216955218 U proposes a portable coke sampling shovel. The device sets a force applying assembly on the rod body, which includes a rotatable force applying rod. During use, the force applying rod can be rotated to a horizontal state. The sliding sleeve is positioned and connected by a first top wire. Under the clamping action of the first end surface of the arc-shaped stop table and the top of the sliding sleeve, the force applying rod is limited to prevent free rotation. Then, the force applying rod can be forced to quickly and conveniently insert the bucket into the coke to complete sampling. However, the work is in the product cooling state, and the rapid cooling and delamination sampling of test products cannot be realized.

[0004] Patent No. CN 209027871 U proposes a vertical delamination sampler for dry sand layer of flowing sand dune. The invention facilitates the delamination sampling of flowing desert sand dune dry sand, can vertically downward sample from the sand dune surface with a certain slope, can meet the large batch sand dune sampling, and can improve the sampling efficiency and delamination precision. Although the device can realize delamination sampling, it is not suitable for pyrolysis biochar test sampling and cannot meet the requirement of sealing and cooling.

[0005] Patent No. CN 209640066 U proposes a spiral coke sampling and analysis preparation device. In the invention, a rotating shaft is installed inside the preparation box, and a propeller blade is arranged on the rotating shaft. On one hand, the coke can be conveyed, and on the other hand, the coke can be crushed to a certain degree. According to the needs of workers, the crushing box is used, and the coke falling from the preparation box can be further crushed by the two opposite rotating crushing shafts inside the crushing box, which is convenient for workers to sample. However, the device cannot realize delamination sampling of carbon layer and cannot be sealed and cooled.

[0006] In summary, the prior art has obvious inconvenience and defects in practical use, and it is necessary to improve. SUMMARY

[0007] The technical problem solved by the present application is to provide a cooling and layered sampling device for internal heat carbonization test, which can achieve the following purposes:

[0008] 1. The sampler is proposed for the first time for internal heat pyrolysis carbonization test, which fills the technical gap;

[0009] 2. It integrates sealing, cooling and layered sampling, and has multiple functions;

[0010] 3. It can quickly cool the biochar, solve the problem of biochar still in carbonization during sampling, and ensure the accuracy of the test;

[0011] 4. It realizes sealing and cooling, and can prevent the high-temperature biochar just after carbonization from burning when encountering oxygen;

[0012] 5. It can sample layer by layer without damaging the structure of the carbonization layer, has high layering precision, and facilitates the next step of detecting and analyzing different carbon layers;

[0013] 6. It has the advantages of simple structure and easy operation, and improves work efficiency.

[0014] To solve the above technical problems, the present application adopts the following technical scheme: a cooling and layered sampling device for internal heat carbonization test, comprising a carbon pushing mechanism, a sealing and cooling and layering mechanism and a layer-by-layer sampler; the sealing and cooling and layering mechanism is detachably connected to an internal heat carbonization furnace, the carbon pushing mechanism pushes the carbonization products into the sealing and cooling and layering mechanism; and the layer-by-layer sampler samples the carbonization products in the sealing and cooling and layering mechanism layer by layer.

[0015] Further, the sealing and cooling and layering mechanism comprises an upper cover, a plurality of cooling and sampling sections and sealing bolts, the plurality of cooling and sampling sections are stacked from bottom to top, and the upper cover is arranged on the uppermost cooling and sampling section; the sealing bolts pass through the upper cover and the cooling and sampling sections in sequence and are fastened to form a sealed cylinder.

[0016] Further, the internal heat carbonization furnace comprises a lower furnace body, a heat-resistant sealing ring is arranged on the bottom wall of the inner cavity of the lower furnace body, and the lower furnace body is fixed on a rack;

[0017] The carbon pushing mechanism comprises a carbon pushing piston which can move up and down in the inner cavity of the lower furnace body, a spring shock absorber is fixed coaxially at the bottom of the carbon pushing piston; a two-stage push rod is fixed on the rack, and the lower end of the spring shock absorber is fixedly connected with the telescopic rod of the two-stage push rod.

[0018] Further, the layer-by-layer sampler is independently arranged, and comprises a sampling box; the sampling box is circular, and a circular opening is arranged at the center of the bottom wall of the sampling box; and a rotating opening and closing mechanism is arranged at the circular opening.

[0019] Further, the inner heating type carbonization furnace further comprises an upper furnace body, the lower furnace body is provided with a buckle seat, the upper furnace body is provided with a first buckle matched with the buckle seat, and the upper furnace body is detachably arranged on the lower furnace body through the buckle seat and the first buckle.

[0020] Further, the rotating opening and closing mechanism comprises a driving frame capable of rotating around the axis of the circular opening, and the driving frame is rotatably arranged on the sampling box; and a through hole is coaxially arranged on the driving frame and the circular opening.

[0021] A plurality of blades are arranged between the driving frame and the bottom wall of the sampling box, and the blades are arranged on the driving frame; the blades are inwardly rotated and gathered to form a closed panel at the circular opening, and the blades are outwardly rotated to form a channel connecting the circular opening and the through hole.

[0022] Further, the cooling sampling section comprises two layers of first cooling sampling sections arranged at the bottom of the sealing cylinder, and the first cooling sampling sections are annular solids; a second buckle is detachably arranged on the outer wall of the upper first cooling sampling section, and the second buckle is matched with the buckle seat; and a threaded counterbore matched with the sealing bolt is arranged on the lower first cooling sampling section.

[0023] Further, the cooling sampling section further comprises second cooling sampling sections arranged at the remaining layers of the sealing cylinder, and the second cooling sampling sections form annular thin-walled shells, and annular grooves are arranged on the outer walls of the second cooling sampling sections, and the two sides of the annular grooves form outer heat dissipation fins.

[0024] Further, chamfers are arranged on the connecting end faces of the adjacent two layers of cooling sampling sections, and the chamfers on the adjacent two layers of cooling sampling sections jointly form a positioning gap.

[0025] Further, the blades are irregular pentagons with a right angle, and a circular slide column and a square slide column are arranged on the two sides of the right angle edge of the blade respectively, and the circular slide column and the square slide column are arranged in a staggered manner.

[0026] A plurality of first slide grooves are arranged on the bottom wall of the sampling box along the outer periphery of the circular opening, and the first slide grooves are arranged along the side lines of a regular hexagon; and the square slide column is limited in the first slide groove.

[0027] A plurality of second slide grooves are arranged on the driving frame along the outer periphery of the through hole and outwardly radiate, and the second slide grooves are long strips; and the circular slide column is limited in the second slide groove.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] The present application is the first sampler for internal heating pyrolysis carbonization test, which fills the technical gap.

[0030] The present application integrates sealing, cooling and layered sampling, and has multifunctionality.

[0031] The present application can quickly cool the biochar, solve the problem of biochar still in the carbonization process, and ensure the accuracy of the test.

[0032] The present application realizes sealing and cooling, and can prevent the high-temperature biochar just after carbonization from burning when encountering oxygen.

[0033] The present application can sample layer by layer without damaging the structure of the carbonization layer, has high layering precision, and facilitates the next step of detecting and analyzing different carbon layers.

[0034] The present application has the advantages of simple structure and easy operation, and improves work efficiency.

[0035] The present application will be described in detail below in combination with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structural schematic diagram of the internal heating carbonization furnace of the present application;

[0037] Figure 2 Up Figure 1 is an enlarged view of position A in the middle;

[0038] Figure 3 is a schematic diagram of the sealing, cooling and layering mechanism and the internal heating carbonization furnace after installation;

[0039] Figure 4 is Figure 3 is an enlarged view of position B in the middle;

[0040] Figure 5 is Figure 3 is an enlarged view of position C in the middle;

[0041] Figure 6 is Figure 3 is an enlarged view of position D in the middle;

[0042] Figure 7 is a schematic diagram of the layer-by-layer sampler;

[0043] Figure 8 is a schematic diagram of the blade;

[0044] Figure 9 is a front view of the blade;

[0045] Figure 10 is a schematic diagram of the open state of the layer-by-layer sampler;

[0046] Figure 11 is a schematic diagram of the closed state of the layer-by-layer sampler.

[0047] in the figure,

[0048] 1 - lower furnace body, 2 - upper furnace body, 3 - buckle seat, 4 - first buckle, 5 - carbon pushing piston, 6 - rack, 7 - spring shock absorber, 8 - secondary push rod, 9 - second buckle, 10 - upper cover, 11 - first cooling sampling section, 12 - second cooling sampling section, 13 - ring groove, 14 - extended heat dissipation fin, 15 - positioning notch, 16 - sampling box, 17 - driving frame, 18 - blade, 19 - circular slide column, 20 - square slide column, 21 - first sliding groove, 22 - second sliding groove, 23 - heat-resistant sealing ring, 24 - ignition port, 25 - handle. DETAILED DESCRIPTION

[0049] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described with reference to the accompanying drawings.

[0050] Example 1

[0051] As Figures 1-11 It is shown together that the present application provides a cooling and layering sampling device for internal heating carbonization test, which comprises a carbon pushing mechanism, a sealed cooling and layering mechanism and a layer-by-layer sampler; the sealed cooling and layering mechanism is detachably connected to an internal heating carbonization furnace, the carbon pushing mechanism pushes the carbonization products into the sealed cooling and layering mechanism; and the layer-by-layer sampler samples the carbonization products in the sealed cooling and layering mechanism layer by layer.

[0052] The internal heating carbonization furnace comprises a lower furnace body 1 and an upper furnace body 2, the lower furnace body 1 is fixed on a rack 6; the lower furnace body 1 is provided with a buckle seat 3, the upper furnace body 2 is provided with a first buckle 4 matched with the buckle seat 3, and the upper furnace body 2 is detachably installed on the lower furnace body 1 through the first buckle 4 and the buckle seat 3.

[0053] The carbon pushing mechanism comprises a carbon pushing piston 5, the carbon pushing piston 5 is movable up and down in the inner cavity of the lower furnace body 1, a spring shock absorber 7 is coaxially fixed at the bottom of the carbon pushing piston 5, the lower end of the spring shock absorber 7 is fixedly connected with the telescopic rod of a secondary push rod 8 through a pin, and the secondary push rod 8 is fixed on the crossbeam of the rack 6.

[0054] Further, a heat-resistant sealing ring 23 is arranged on the bottom wall of the inner cavity of the lower furnace body 1, the spring in the spring shock absorber 7 is compressed when the secondary push rod 8 is retracted, thereby generating a downward pulling force on the carbon pushing piston 5, so as to press the heat-resistant sealing ring 23 and realize sealing during the pyrolysis process.

[0055] When the secondary push rod 8 is extended to the maximum stroke, the upper surface of the push carbon piston 5 is flush with the upper end surface of the lower furnace body 1, so as to ensure that the biochar is completely pushed out.

[0056] The push carbon piston 5 is provided with an ignition hole 24, through which the operator can ignite the biomass in the internal heat carbonization furnace.

[0057] The sealing and cooling layering mechanism is provided with a second buckle 9 matched with the buckle seat 3, and the sealing and cooling layering mechanism is detachably installed on the lower furnace body 1 through the second buckle 9 and the buckle seat 3.

[0058] The sealing and cooling layering mechanism includes an upper cover 10, a plurality of cooling and sampling sections, and sealing bolts 13. The plurality of cooling and sampling sections are stacked from bottom to top, and the upper cover 10 is arranged on the uppermost cooling and sampling section. The sealing bolts 13 pass through the upper cover 10 and the cooling and sampling sections in sequence and are fastened to form a sealing cylinder. The outer diameter of the sealing cylinder is the same as that of the upper furnace body 2, so as to be detachably connected with the buckle seat 3 through the second buckle 9, thereby installing the sealing and cooling layering mechanism on the lower furnace body 1.

[0059] The connecting end surfaces of adjacent two layers of cooling and sampling sections are provided with chamfers, and the chamfers of the adjacent two layers of cooling and sampling sections form positioning notches 15.

[0060] The cooling and sampling section includes two layers of first cooling and sampling sections 11 at the bottom of the sealing cylinder and second cooling and sampling sections 12 at the remaining layers of the sealing cylinder. The first cooling and sampling sections 11 and the second cooling and sampling sections 12 have the same inner and outer diameters and are in the form of circular rings.

[0061] The first cooling and sampling sections 11 and the second cooling and sampling sections 12 are different in that the first cooling and sampling sections 11 are annular solids, the second buckles 9 are detachably arranged on the outer walls of the upper first cooling and sampling sections 11, and the lower first cooling and sampling sections 11 are provided with threaded counterbores matched with the sealing bolts 13. The outer walls of the second cooling and sampling sections 12 are provided with annular grooves 13, so that the second cooling and sampling sections 12 form annular thin-walled shells. The annular grooves 13 are provided with outer extension heat dissipation fins 14 on both sides, which can accelerate cooling.

[0062] The layer-by-layer sampler is independently arranged, and includes a sampling box 16. The sampling box 16 is circular, and the inner cavity of the sampling box 16 can integrally accommodate the cooling and sampling section. Preferably, the inner diameter of the sampling box 16 is greater than the outer diameter of the cooling and sampling section, and the height of the inner cavity of the sampling box 16 is not less than the height of the cooling and sampling section. The layer-by-layer sampler can take out one layer of cooling and sampling section and the carbonization products inside the cooling and sampling section at a time, and realizes layer-by-layer sampling through sequential operation.

[0063] The bottom wall of the sampling box 16 is provided with a circular opening in the center, which can pass through the cooling sampling section.

[0064] A rotating opening and closing mechanism is installed at the circular opening, which includes a driving frame 17 that can rotate around the rotating circular opening axis, and the driving frame 17 is rotatably installed on the sampling box 16.

[0065] The driving frame 17 is provided with a through-hole coaxially arranged with the circular opening; a plurality of blades 18 are arranged between the driving frame 17 and the bottom wall of the sampling box 16, which rotate inwardly at the circular opening to form a closed panel, or rotate outwardly at the circular opening to form a channel connecting the circular opening and the through-hole.

[0066] A plurality of blades are installed on the driving frame 17, and rotating the driving frame 17 drives the plurality of blades 18 to move simultaneously.

[0067] The blade 18 is an irregular pentagon structure with a right angle, and the blade 18 is provided with a circular slide column 19 and a square slide column 20 on both sides, respectively, which are arranged on the right angle side of the irregular pentagon structure, and the circular slide column 19 and the square slide column 20 are arranged in staggered positions.

[0068] A plurality of first sliding grooves 21 are arranged along the outer periphery of the circular opening on the bottom wall of the sampling box 16, and the plurality of first sliding grooves 21 are arranged along the side lines of the regular hexagon; the square slide column 20 is limited in the first sliding groove 21, so that the square slide column 20 of the blade 18 moves linearly in the first sliding groove 21.

[0069] A plurality of outwardly inclined second sliding grooves 22 are arranged on the driving frame 17 along the outer periphery of the through-hole, and the second sliding grooves 22 are long strips; the circular slide column 19 is limited in the second sliding groove 22, so that the blade 18 moves in a curve around the second sliding groove 22, and in cooperation with the limiting of the square slide column 20 in the first sliding groove 21, the plurality of blades 18 are opened or closed synchronously.

[0070] Further, the driving frame 17 is provided with a handle 25, and the driving frame is rotated through the handle 25.

[0071] The working process of the present application includes the following steps:

[0072] Step 1: The biomass raw material is first pyrolyzed in the internal heat type carbonization furnace, and after the pyrolysis is completed, the upper furnace body is disassembled, and then the sealing and cooling layering mechanism is connected to the lower furnace body through the second buckle, so that the sealing and cooling layering mechanism and the carbon pushing mechanism form an integral whole.

[0073] Step 2: The secondary push rod moves up, and the carbonization product above the push carbon piston is pushed upward until the secondary push rod reaches the maximum stroke, i.e. the carbonization product is completely pushed into the sealed cooling and layering mechanism, and cooling begins.

[0074] Step 3: In actual operation, the air flow rate around the sealed cooling and layering mechanism can be increased with the aid of external force, and at the same time, the heat exchange area is increased and the cooling is accelerated under the holding action of the external extension heat dissipation fin on the cooling sampling section.

[0075] Step 4: After cooling is completed, the sealing bolts are removed, the upper cover is removed, the rotary opening and closing mechanism on the layer-by-layer sampler is opened, the sampling box is buckled on the uppermost cooling sampling section, and it is contained in the sampling box. The handle rotates the drive frame, the blades are inserted through the positioning gap and finally closed, the adjacent two cooling sampling sections and the internal biochar are separated, the uppermost layer sampling is completed, and then the remaining cooling sampling sections and the internal carbonization products are sequentially removed from top to bottom through the layer-by-layer sampler, and the layer-by-layer sampling is completed. It should be noted that the second buckle needs to be removed during layer-by-layer sampling to avoid interference during sampling.

[0076] The above describes the best embodiment of the present application, wherein parts not described in detail are common knowledge to those skilled in the art. The protection scope of the present application is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the present application is also within the protection scope of the present application.

Claims

1. An internally heated, char- yest cooling, delamination sampling device characterized by: The device comprises a carbon pushing mechanism, a sealed cooling and layering mechanism and a layer-by-layer sampler; the sealed cooling and layering mechanism is detachably connected to an internal heating carbonization furnace; the carbon pushing mechanism pushes the carbonization products into the sealed cooling and layering mechanism; the layer-by-layer sampler samples the carbonization products in the sealed cooling and layering mechanism layer by layer. The sealed cooling and layering mechanism comprises multiple layers of cooling and sampling sections, and the layer-by-layer sampler is independently arranged; the layer-by-layer sampler comprises a sampling box (16); a circular opening is arranged at the center of the bottom wall of the sampling box (16); a rotating opening and closing mechanism is arranged at the circular opening; The rotating opening and closing mechanism comprises a driving frame (17) which can rotate around the axis of the circular opening; the driving frame (17) is rotatably arranged on the sampling box (16); a through hole is arranged on the driving frame (17) coaxially with the circular opening; Multiple blades (18) are arranged between the driving frame (17) and the bottom wall of the sampling box (16); the multiple blades (18) are arranged on the driving frame (17); the multiple blades (18) rotate inward at the circular opening to form a closed panel; the multiple blades (18) rotate outward at the circular opening to form a channel connecting the circular opening and the through hole.

2. A cooling and delaminating sampling device for use in internal heat carbonization tests as defined in claim 1, characterized in that: The sealed cooling and layering mechanism comprises an upper cover (10) and sealing bolts; multiple layers of cooling and sampling sections are sequentially stacked from bottom to top; the upper cover (10) is arranged on the uppermost layer of cooling and sampling sections; the sealing bolts pass through the upper cover (10) and the cooling and sampling sections in sequence and are fastened to form a sealed cylinder.

3. A cooling and delaminating sampling device for use in internal heat carbonization tests, according to claim 2, characterized in that: The internal heating carbonization furnace comprises a lower furnace body (1); a heat-resistant sealing ring (23) is arranged on the bottom wall of the inner cavity of the lower furnace body (1); the lower furnace body (1) is fixed on a rack (6); The carbon pushing mechanism comprises a carbon pushing piston (5) which can move up and down in the inner cavity of the lower furnace body (1); a spring shock absorber (7) is coaxially fixed on the bottom of the carbon pushing piston (5); a two-stage push rod (8) is fixed on the rack (6); the lower end of the spring shock absorber (7) is fixedly connected with the telescopic rod of the two-stage push rod (8).

4. A cooling and delaminating sampling device for use in internal heat carbonization testing as defined in claim 1, characterized in that: The sampling box (16) is circular.

5. A cooling and delaminating sampling device for use in internal heat carbonization testing as defined in claim 3, characterized in that: The internal heating carbonization furnace further comprises an upper furnace body (2); the lower furnace body (1) is provided with a buckle seat (3); the upper furnace body (2) is provided with a first buckle (4) matched with the buckle seat (3); the upper furnace body (2) is detachably installed on the lower furnace body (1) through the buckle seat (3) and the first buckle (4).

6. A cooling and delaminating sampling device for use in internal heat carbonization testing as defined in claim 5, characterized in that: The cooling and sampling section comprises two layers of first cooling and sampling sections (11) at the bottom of the sealed cylinder; the first cooling and sampling sections (11) are annular solids; a second buckle (9) is detachably arranged on the outer wall of the upper layer of first cooling and sampling sections (11); the second buckle (9) is matched with the buckle seat (3); a threaded counterbore is arranged on the lower layer of first cooling and sampling sections (11) and matched with the sealing bolt.

7. A cooling and delaminating sampling device for use in internal heat carbonization tests, according to claim 6, characterized in that: The cooling and sampling section further comprises second cooling and sampling sections (12) of the remaining layers of the sealed cylinder; the second cooling and sampling sections (12) form annular thin-walled shells; a ring groove (13) is arranged on the outer wall of the second cooling and sampling sections (12); the two sides of the ring groove (13) form outer heat dissipation fins (14).

8. A cooling and delaminating sampling device for use in internal heat carbonization testing as defined in claim 2, characterized in that: The connecting end faces of the two adjacent cooling sampling sections are provided with chamfers, and the chamfers of the two adjacent cooling sampling sections jointly form a positioning notch (15).

9. A cooling and delaminating sampling device for use in internal heat carbonization testing as defined in claim 1, characterized in that: The blade (18) is an irregular pentagon structure with a right angle, and a circular slide column (19) and a square slide column (20) are arranged on the two sides of the right angle edge of the blade (18) respectively, and the circular slide column (19) and the square slide column (20) are arranged in a staggered manner. A plurality of first sliding grooves (21) are arranged on the bottom wall of the sampling box (16) along the outer periphery of the circular opening, and the plurality of first sliding grooves (21) are arranged along the side lines of the regular hexagon; the square slide column (20) is limited in the first sliding groove (21). A plurality of second sliding grooves (22) are arranged on the driving frame (17) along the outer periphery of the through circular hole and are inclined outward, and the second sliding grooves (22) are long strips; the circular slide column (19) is limited in the second sliding groove (22).

Images