Mineral-based straw biochar granulation device and method for water environment treatment

Abstract

The invention relates to the technical field of biochar production, and discloses a mineral-based straw biochar granulation device for water environment governance, which comprises a base, a carbonization box, a combustor, a crushing mechanism and a granulation mechanism, comprising the following steps: step 1, crushing and grinding; step 2, auxiliary grinding; step 3, screening the powder; step 4, carrying out carbonization; step 5, auxiliary caking; step 5, compacting to manufacture a carbon block; 6, the carbon blocks are cut to be made into particles, a motor is started to drive a grinding roller arranged outside a rotating rod to roll in a smashing box so that corresponding raw materials can be conveniently ground and smashed, and due to the fact that the hardness of straw sections is different from that of tailings fragments, the straw sections with fibers can be better ground into powder through a mixed smashing and grinding mode; in the grinding process, as the tailings fragments are hard, the tailings fragments are crushed preferentially, and small fragments are formed to cut the straw sections, so that the grinding effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of biochar production, and in particular to a mineral-based straw biochar granulation device and method for water environment treatment. Background Art

[0002] Non-metallic tailings are non-metallic materials left after the valuable part of the ore is separated from the uneconomic part. The impact of tailings on the natural ecological environment is specifically manifested in: ① Tailings are easy to flow and collapse when stored, causing vegetation damage and injury accidents, especially in the rainy season, it is very easy to cause collapse and landslides. The tailings dam is relatively high, posing a safety hazard; ② The tailings composition and residual mineral processing agents cause serious damage to the ecological environment; Domestic and foreign treatment of tailings, regardless of whether the useful minerals in the tailings have recycling value, are mostly stored on the ground. The storage of tailings not only occupies a large amount of arable land, but also easily causes environmental pollution, soil erosion, vegetation damage, etc. in the mining area. Straw is the general name for the stems and leaves (ears) of mature crops. Generally, after harvesting, large quantities of straw are burned and destroyed, and the smoke produced will cause air pollution. The mineral-based biochar produced after the recovery of the two can be used for water environment management as one of the main materials for adsorbing impurities in water bodies for water purification.

[0003] Chinese patent publication number CN115261038A discloses "Equipment and method for producing mineral-based biochar with straw-loaded non-metallic tailings", which relates to the technical field of mineral-based biochar, and comprises a mounting frame and a bracket, wherein the two ends above the front side of the mounting frame are respectively provided with a straw crushing bin and a tailings conveying pipe, a support plate is rotatably provided on the bracket, and a mixed carbonization box is provided at one end above the support plate, the output ends of the straw crushing bin and the tailings conveying pipe face the mixed carbonization box, and a carbonization burner is provided at one end of the top of the bracket; the present invention grinds the straw into straw powder, and puts the powder into the mixed carbonization box together with the non-metallic tailings, mixes the straw powder and the non-metallic tailings evenly by moving and rotating the stirring assembly, and carbonizes the mixture by heating the mixed carbonization box with the carbonization burner to obtain mineral-based biochar, which is convenient for the recycling of non-metallic tailings and straw, improves energy utilization efficiency, and avoids pollution caused by direct treatment.

[0004] In this scheme, the straw is put into the straw crushing bin and ground into straw powder by the rotation of the grinding roller. However, due to the gaps between the grinding rollers, the straw that enters cannot be completely crushed and ground into powder during the crushing process, and some larger debris are mixed in it. This results in that during the subsequent carbonization, the carbonization time of the powder and the larger debris are inconsistent, affecting the overall processing efficiency. In this scheme, the carbonization burner is started to heat the raw materials in the mixed carbonization box, and then the carbon material is poured into the forming plate, and the carbon material is pressed down by the second pneumatic cylinder to extrude the carbon material. However, since the tar content inside the raw materials is low after carbonization and mixing, and the material itself lacks viscosity, the mineral-based biochar directly extruded is prone to loosening and cracking due to the bumps in transportation in the later stage, which is not convenient for later use. Therefore, a mineral-based straw biochar granulation device and method for water environment treatment are proposed to solve the above-mentioned problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a mineral-based straw biochar granulation device and method for water environment treatment, which solves the problem of inconsistent carbonization time due to inconsistent crushed particle sizes.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mineral-based straw biochar granulation device for water environment treatment, comprising a base, a carbonization box, a burner, a crushing mechanism, and a granulation mechanism;

[0009] The carbonization box is connected to the top of the base and is used to place raw material crushed pieces;

[0010] The burner is connected to the bottom of the carbonization box and is used to heat the bottom of the carbonization box;

[0011] The pulverizing mechanism is arranged above the carbonizing box and is used for pulverizing the grinding raw materials;

[0012] The granulation mechanism is arranged on the front side of the carbonization box;

[0013] The crushing mechanism includes a crushing box, a feed port, a filter frame, a motor, a mounting plate, a rotating rod, an electric push rod, a support frame, and a grinding roller;

[0014] The crushing box is arranged on the top of the carbonization box, and the feed port is connected to the top of the crushing box;

[0015] The filter frame is arranged at the bottom of the crushing box and is used for screening raw materials;

[0016] The motor is connected to the back of the crushing box through a mounting plate, the output end of the motor is connected to a rotating rod, and the rotating rod passes through the back of the crushing box and extends to the inside of the crushing box;

[0017] The electric push rod is connected to one side of the outer wall of the rotating rod, the support frame is connected to the output end of the electric push rod, and the grinding roller is rotatably connected to the inner wall of the support frame for crushing and grinding the raw materials in the grinding box, and the straw segments and tailings fragments in appropriate proportions are added into the grinding box from the feed port, and the grinding roller arranged outside the rotating rod is driven by the starting motor to roll in the grinding box to facilitate the grinding and crushing of the corresponding raw materials. Due to the different hardness of the straw segments and the tailings fragments, the mixed crushing and grinding method is more conducive to grinding the straw segments with fibers into powder. During the grinding process, the tailings fragments are harder and will be crushed first, forming smaller fragments to cut the straw segments, thereby improving the grinding effect. During the grinding process, the electric push rod will gradually extend to reduce the distance between the grinding roller and the inner wall of the grinding box, so as to facilitate the crushing and grinding of the raw materials into powder by repeated rolling, and the raw material powder is screened by the filter frame arranged in the grinding box so that the particles of appropriate size fall into the carbonization box, while the larger particles will remain therein and be repeatedly ground.

[0018] Preferably, the filter frame is slidably connected to the bottom of the crushing box, and push plates are respectively connected to both sides of the outer wall of the filter frame. The bottom of the push plate is connected to a gas spring, and the gas spring is connected to the top of the carbonization box. Since the filter frame is arranged to slide up and down at the bottom of the crushing box, the grinding roller will press it down every time it passes by. When the grinding roller leaves the filter frame, the tension of the gas spring will push the push plate to drive the filter frame to reset, causing the filter frame to shake, so as to avoid clogging of the filter frame.

[0019] Preferably, a scraper is connected to one side of the outer wall of the rotating rod, the scraper contacts the inner wall of the crushing box, and a material leakage groove is provided at the end of the scraper contacting the crushing box. The angle between the scraper and the support frame is ninety degrees. When the rotating rod drives the grinding roller to rotate, it also drives the scraper to scrape the raw materials at the bottom of the crushing box to avoid the materials from accumulating at the bottom of the crushing box and affecting the grinding effect.

[0020] Preferably, the granulation mechanism includes a pushing component, a compacting component, a coagulation aid component, and a cutting component;

[0021] The pushing assembly is arranged inside the carbonization box and is used to push out the biochar powder;

[0022] The compacting assembly is arranged at the front of the carbonization box and is used to compact the biochar powder into blocks;

[0023] The coagulation aid component is arranged on the front side of the carbonization box and is used to drip glue into the biochar powder;

[0024] The cutting assembly is arranged on the front side of the base and is used for cutting the biochar blocks into particles.

[0025] Preferably, the pushing assembly comprises a cylinder and a support plate support frame;

[0026] The cylinders are respectively connected to both sides of the base, the support frame is arranged at the bottom of the carbonization box and is slidably connected, the support plate is connected to the back of the support frame, and the two sides of the support frame are respectively connected to one end of the cylinder at the corresponding position, and the support frame connected to the support plate is driven by the cylinder to slowly push out the carbonized powder.

[0027] Preferably, the compacting assembly comprises a connecting plate, a first connecting rod, and a compacting plate;

[0028] The connecting plate is connected to the front side of the outer wall of the filter frame, the first connecting rod is connected to the bottom of the connecting plate, and the compacting plate is connected to the bottom of the first connecting rod. When the connecting plate reciprocates up and down, the compacting plate connected to the first connecting rod is driven to compact the carbonized powder dripped with glue to make it more compact, thereby preventing it from dispersing or breaking during the later transportation process.

[0029] Preferably, both sides of the connecting plate are slidably connected to limit rods, and the limit rods are connected to the top of the carbonization box.

[0030] Preferably, the coagulation aid assembly includes a second connecting rod, a liquid storage box, a sealing frame, a liquid drain hole, and a liquid injection pipe;

[0031] The second connecting rod is connected to the bottom of the connecting plate and is on the back of the first connecting rod. The liquid storage box is connected to the bottom of the second connecting rod. The sealing frame is slidably connected to the outer wall of the liquid storage box, and the sealing frame is connected to the carbonization box. The drainage hole is opened at the bottom of the front side of the liquid storage box. The injection pipe is connected to the top of the liquid storage box. Glue is dripped onto the carbonized powder to assist its coagulation. Glue is added to make it more firm after it is agglomerated and solidified to cope with the bumps in its later transportation.

[0032] Preferably, the cutting assembly comprises a support frame, a support rod, a hydraulic rod, a support plate, and a cutting knife;

[0033] The support frame is connected to the top of the front side of the base, the support rods are fixedly connected to both sides of the bottom of the support frame, the hydraulic rod is connected to one end of the support rod, the support plate is connected to the top of the hydraulic rod, and a cutting knife is connected to the back side of the support plate, and the cutting knife extends to the top of the support frame.

[0034] The following steps are involved:

[0035] Step 1: crush and grind. Add appropriate proportions of straw segments and tailings fragments into the crushing box from the feed port. Start the motor to drive the grinding roller set outside the rotating rod to roll in the crushing box to facilitate the grinding and crushing of the corresponding raw materials. Since the hardness of the straw segments and the tailings fragments is different, the mixed crushing and grinding method is more conducive to grinding the straw segments with fibers into powder. During the grinding process, the tailings fragments are harder and will be crushed first, forming smaller fragments to cut the straw segments, thereby improving the grinding effect. During the grinding process, the electric push rod will gradually extend to reduce the distance between the grinding roller and the inner wall of the crushing box, so as to facilitate the crushing and grinding of the raw materials into powder through repeated rolling;

[0036] Step 2: Auxiliary grinding: The raw material powder is screened by the filter frame set in the crushing box, so that the particles of appropriate size fall into the carbonization box, while the larger particles will remain in it and be repeatedly ground. The rotating rod drives the grinding roller to rotate, and at the same time, it also drives the scraper to scrape the raw materials at the bottom of the crushing box to avoid the materials from accumulating at the bottom of the crushing box and affecting the grinding effect.

[0037] Step 3: Screen the powder. Since the filter frame is set up and down to slide at the bottom of the crushing box, the grinding roller will press it down every time it passes. When the grinding roller leaves the filter frame, the tension of the gas spring will push the push plate to drive the filter frame to reset, causing the filter frame to shake to avoid clogging.

[0038] Step 4: Carbonization: After grinding, start the burner to heat the powder inside the carbonization box to carbonize it;

[0039] Step 5: Assisting agglomeration: The cylinder drives the support frame connected to the support plate to slowly push out the carbonized powder. At this time, each time the filter frame is pressed down by the upper grinding roller, the liquid storage box connected to the second connecting rod under the connecting plate is driven to move downward, and the drainage hole on the liquid storage box is exposed outside the sealing frame, so that the glue will drip on the carbonized powder to assist its coagulation;

[0040] Step 5: Compact and make carbon blocks. The connecting plate reciprocates up and down, driving the compacting plate connected to the first connecting rod to compact the carbonized powder dripped with glue to make it more compact, so as to prevent it from scattering or breaking during the later transportation process.

[0041] Step 6: Cut the carbon blocks into pellets. When the support frame slowly moves until the frame touches the cutting knife, the hydraulic rod will extend and retract to drive the cutting knife above the support plate to descend. When the cutting knife is in the support frame, it will extend again to cut the carbon blocks to facilitate pelletization.

[0042] (III) Beneficial effects

[0043] Compared with the prior art, the present invention provides a mineral-based straw biochar granulation device and method for water environment treatment, which has the following beneficial effects:

[0044] 1. The mineral-based straw biochar granulation device and method for water environment treatment drives the grinding roller arranged outside the rotating rod to roll in the crushing box by starting the motor to facilitate the grinding and crushing of the corresponding raw materials. Since the hardness of the straw segments and the tailings fragments is different, the mixed crushing and grinding method is more conducive to grinding the straw segments with fibers into powder. During the grinding process, the tailings fragments are harder and will be crushed first, forming smaller fragments to cut the straw segments, thereby improving the grinding effect. During the grinding process, the electric push rod will gradually extend to reduce the distance between the grinding roller and the inner wall of the crushing box, so as to facilitate the crushing and grinding of the raw materials into powder by repeated rolling, and the raw material powder is screened by the filter frame arranged in the crushing box so that the particles of suitable size fall into the carbonization box, while the larger particles will remain in it and be repeatedly ground.

[0045] 2. The mineral-based straw biochar granulation device and method for water environment treatment has a filter frame that slides up and down at the bottom of the crushing box. The grinding roller presses it down each time it passes by. When the grinding roller leaves the filter frame, the tension of the gas spring pushes the push plate to drive the filter frame to reset, causing the filter frame to shake to avoid clogging of the filter frame.

[0046] 3. The mineral-based straw biochar granulation device and method for water environment treatment drives the liquid storage box connected to the second connecting rod under the connecting plate to move downward each time the upper grinding roller presses down the filter frame, exposing the drainage hole on the liquid storage box outside the sealing frame, so that glue will drip on the carbonized powder to assist its coagulation. By adding glue, the agglomerates are made stronger after solidification to cope with the bumps in its later transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 It is a back view of the present invention;

[0049] Figure 3 It is a partial cross-sectional view of the present invention;

[0050] Figure 4 It is a structural schematic diagram of the material pushing assembly in the present invention;

[0051] Figure 5 It is a structural schematic diagram of the compaction assembly in the present invention;

[0052] Figure 6 It is a structural schematic diagram of the coagulation aid component in the present invention;

[0053] Figure 7 It is a schematic diagram of the structure of the cutting assembly in the present invention.

[0054] In the figure: 1, base; 2, carbonization box; 3, burner; 4, crushing mechanism; 41, crushing box; 411, feed port; 412, filter frame; 413, push plate; 414, gas spring; 42, motor; 421, mounting plate; 422, rotating rod; 423, electric push rod; 424, support frame; 425, grinding roller; 426, scraper; 4261, leakage trough; 5, granulating mechanism; 51, push assembly; 511, cylinder; 512 , support plate; 513, support frame; 52, compacting assembly; 521, connecting plate; 522, first connecting rod; 523, compacting plate; 524, limiting rod; 53, coagulation aid assembly; 531, second connecting rod; 532, liquid storage box; 533, sealing frame; 534, drainage hole; 535, liquid injection pipe; 54, cutting assembly; 541, support frame; 542, support rod; 543, hydraulic rod; 544, support plate; 545, cutting knife. DETAILED DESCRIPTION

[0055] 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.

[0056] Please refer to 1- Figure 7 The device and method for making mineral-based straw biochar for water environment treatment are shown, comprising a base 1, a carbonization box 2, a burner 3, a crushing mechanism 4, and a granulating mechanism 5. The carbonization box 2 is connected to the top of the base 1 for placing raw material crumbs. The burner 3 is connected to the bottom of the carbonization box 2 for heating the bottom of the carbonization box 2. The crushing mechanism 4 is arranged above the carbonization box 2 for crushing and grinding the raw materials. The granulating mechanism 5 is arranged on the front of the carbonization box 2. The crushing mechanism 4 comprises a crushing box 41, a feed port 411, a filter frame 412, a motor 42, a mounting plate 421, a rotating rod 422, an electric push rod 423, a support frame 424, a grinding Roller 425, a crushing box 41 is arranged on the top of the carbonization box 2, a feed port 411 is connected to the top of the crushing box 41, a filter frame 412 is arranged at the bottom of the crushing box 41 for screening raw materials, a motor 42 is connected to the back of the crushing box 41 through a mounting plate 421, a rotating rod 422 is connected to the output end of the motor 42, and the rotating rod 422 passes through the back of the crushing box 41 and extends to the inside of the crushing box 41, an electric push rod 423 is connected to one side of the outer wall of the rotating rod 422, a support frame 424 is connected to the output end of the electric push rod 423, and a grinding roller 425 is rotatably connected to the inner wall of the support frame 424 for crushing and grinding the raw materials in the crushing box 41.

[0057] Specifically, straw segments and tailings fragments in appropriate proportions are added into the crushing box 41 from the feed port 411, and the grinding roller 425 arranged outside the rotating rod 422 is driven by the starting motor 42 to roll in the crushing box 41 to facilitate the grinding and crushing of the corresponding raw materials. Since the hardness of the straw segments and the tailings fragments is different, the mixed crushing and grinding method is more conducive to grinding the straw segments with fibers into powder. During the grinding process, the tailings fragments are harder and will be crushed first to form smaller fragments to cut the straw segments, thereby improving the grinding effect. During the grinding process, the electric push rod 423 will gradually extend to reduce the distance between the grinding roller 425 and the inner wall of the crushing box 41, so as to facilitate the crushing and grinding of the raw materials into powder through repeated rolling, and the raw material powder is screened by the filter frame 412 arranged in the crushing box 41 so that the particles of appropriate size fall into the carbonization box 2, while the larger particles will remain therein and be repeatedly ground.

[0058] like Figure 3 As shown, the filter frame 412 is slidably connected to the bottom of the crushing box 41 , and push plates 413 are respectively connected to both sides of the outer wall of the filter frame 412 , and the bottom of the push plate 413 is connected to a gas spring 414 , and the gas spring 414 is connected to the top of the carbonization box 2 .

[0059] Specifically, since the filter frame 412 is set to slide up and down at the bottom of the crushing box 41, the grinding roller 425 will press it down every time it passes by. When the grinding roller 425 leaves the filter frame 412, the tension of the gas spring 414 will push the push plate 413 to drive the filter frame 412 to reset, causing the filter frame 412 to shake to avoid clogging of the filter frame 412.

[0060] like Figure 3 As shown, a scraper 426 is connected to one side of the outer wall of the rotating rod 422, and the scraper 426 contacts the inner wall of the crushing box 41. A material leakage groove 4261 is opened at the end of the scraper 426 that contacts the crushing box 41, and the angle between the scraper 426 and the support frame 424 is ninety degrees.

[0061] Specifically, while the rotating rod 422 drives the grinding roller 425 to rotate, it also drives the scraper 426 to scrape the raw materials at the bottom of the crushing box 41 to prevent the materials from being concentrated at the bottom of the crushing box 41 and affecting the grinding effect.

[0062] Excellent Figure 3 As shown, the granulation mechanism 5 includes a pushing component 51, a compacting component 52, a coagulation aid component 53, and a cutting component 54. The pushing component 51 is arranged inside the carbonization box 2, and is used to push out the biochar powder. The compacting component 52 is arranged on the front of the carbonization box 2, and is used to compact the biochar powder into blocks. The coagulation aid component 53 is arranged on the front of the carbonization box 2, and is used to drip glue into the biochar powder. The cutting component 54 is arranged on the front of the base 1, and is used to cut the biochar blocks into particles.

[0063] like Figure 4 As shown, the pushing assembly 51 includes a cylinder 511, a support plate 512 and a support frame 513. The cylinder 511 is respectively connected to both sides of the base 1, the support frame 513 is arranged at the bottom of the carbonization box 2 and is slidably connected, the support plate 512 is connected to the back of the support frame 513, and both sides of the support frame 513 are respectively connected to one end of the cylinder 511 at the corresponding position.

[0064] Specifically, the cylinder 511 drives the supporting frame 513 connected to the supporting plate 512 to slowly push out the carbonized powder.

[0065] like Figure 3 , Figure 5 As shown, the compaction assembly 52 includes a connecting plate 521, a first connecting rod 522, and a compaction plate 523. The connecting plate 521 is connected to the front of the outer wall of the filter frame 412, the first connecting rod 522 is connected to the bottom of the connecting plate 521, and the compaction plate 523 is connected to the bottom of the first connecting rod 522.

[0066] Specifically, by the reciprocating up and down motion of the connecting plate 521, the compacting plate 523 connected to the first connecting rod 522 is driven to compact the carbonized powder dripped with glue to make it more compact, thereby preventing it from being scattered or broken during the later transportation process.

[0067] like Figure 5 As shown, both sides of the connecting plate 521 are slidably connected with limiting rods 524 , and the limiting rods 524 are connected to the top of the carbonization box 2 .

[0068] like Figure 3 , Figure 6 As shown, the coagulation aid assembly 53 includes a second connecting rod 531, a liquid storage box 532, a sealing frame 533, a liquid discharge hole 534, and a liquid injection pipe 535. The second connecting rod 531 is connected to the bottom of the connecting plate 521 and is located on the back of the first connecting rod 522. The liquid storage box 532 is connected to the bottom of the second connecting rod 531. The sealing frame 533 is slidably connected to the outer wall of the liquid storage box 532, and the sealing frame 533 is connected to the carbonization box 2. The liquid discharge hole 534 is opened in the liquid storage box 53 At the bottom of the front side, the liquid injection pipe 535 is connected to the top of the liquid storage box 532. Each time the filter frame 412 is pressed down by the upper grinding roller 425, the liquid storage box 532 connected to the second connecting rod 531 below the connecting plate 521 is driven to move downward, and the drainage hole 534 on the liquid storage box 532 is exposed outside the sealing frame 533, so that the glue will drip on the carbonized powder to assist its coagulation. By adding glue, the agglomeration and coagulation of the powder will be more solid to cope with the bumps in its later transportation.

[0069] like Figure 3 , Figure 7As shown, the cutting assembly 54 includes a support frame 541, a support rod 542, a hydraulic rod 543, a support plate 544, and a cutting knife 545. The support frame 541 is connected to the top of the front side of the base 1, the support rod 542 is fixedly connected to both sides of the bottom of the support frame 541, the hydraulic rod 543 is connected to one end of the support rod 542, the support plate 544 is connected to the top of the hydraulic rod 543, and the back of the support plate 544 is connected to the cutting knife 545, and the cutting knife 545 extends to the top of the support frame 541.

[0070] Specifically, when the support frame 513 slowly moves until the frame touches the cutting knife 545, the hydraulic rod 543 will extend and retract to drive the cutting knife 545 above the support plate 544 to descend. When the cutting knife 545 is in the support frame 513, it will extend again to cut the carbon blocks to facilitate the production of particles.

[0071] like Figure 1 - Figure 7 As shown, the following steps are included:

[0072] Step 1: crushing and grinding. Add straw segments and tailings fragments of appropriate proportion into the crushing box 41 from the feed port 411. Start the motor 42 to drive the grinding roller 425 arranged outside the rotating rod 422 to roll in the crushing box 41 to facilitate the corresponding raw materials to be ground and crushed. Since the hardness of the straw segments and the tailings fragments is different, the mixed crushing and grinding method is more conducive to grinding the straw segments with fibers into powder. During the grinding process, the tailings fragments are harder and will be crushed first, forming smaller fragments to cut the straw segments, thereby improving the grinding effect. During the grinding process, the electric push rod 423 will gradually extend to reduce the distance between the grinding roller 425 and the inner wall of the crushing box 41, so as to facilitate the crushing and grinding of the raw materials into powder by repeated rolling.

[0073] Step 2: Auxiliary grinding: The raw material powder is screened by the filter frame 412 provided in the crushing box 41, so that the particles of appropriate size fall into the carbonization box 2, while the larger particles are retained therein and repeatedly ground. The rotating rod 422 drives the grinding roller 425 to rotate, and also drives the scraper 426 to scrape the raw material at the bottom of the crushing box 41, so as to prevent the materials from being concentrated at the bottom of the crushing box 41 and affecting the grinding effect.

[0074] Step 3: Screen the powder. Since the filter frame 412 is slidably arranged at the bottom of the crushing box 41, the grinding roller 425 will press it down each time it passes by. When the grinding roller 425 leaves the filter frame 412, the tension of the gas spring 414 will push the push plate 413 to drive the filter frame 412 to reset, so that the filter frame 412 will shake to avoid clogging of the filter frame 412.

[0075] Step 4: Carbonization: After the grinding is completed, the burner 3 is started to heat the powder inside the carbonization box 2 to carbonize it;

[0076] Step 5: Assisting agglomeration: The cylinder 511 drives the material support frame 513 connected to the support plate 512 to slowly push out the carbonized powder. At this time, each time the filter frame 412 is pressed down by the upper grinding roller 425, the liquid storage box 532 connected to the second connecting rod 531 below the connecting plate 521 is driven to move downward, and the drainage hole 534 on the liquid storage box 532 is exposed outside the sealing frame 533, so that the glue will drip on the carbonized powder to assist its coagulation;

[0077] Step 5: Compact and make carbon blocks. The connecting plate 521 reciprocates up and down, driving the compacting plate 523 connected to the first connecting rod 522 to compact the carbonized powder dripped with glue to make it more compact, so as to prevent it from being scattered or broken during the later transportation process.

[0078] Step 6: Cut the carbon blocks into pellets. When the support frame 513 slowly moves until the frame touches the cutting knife 545, the hydraulic rod 543 will extend and retract to drive the cutting knife 545 above the support plate 544 to descend. When the cutting knife 545 is in the support frame 513, it will extend again to cut the carbon blocks to facilitate pelletization.

[0079] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A mineral-based straw biochar granulation device for water environment treatment, characterized in that: It comprises a base (1), a carbonization box (2), a burner (3), a crushing mechanism (4), and a granulating mechanism (5); The carbonization box (2) is connected to the top of the base (1) and is used to place raw material crushed pieces; The burner (3) is connected to the bottom of the carbonization box (2) and is used to heat the bottom of the carbonization box (2); The pulverizing mechanism (4) is arranged above the carbonization box (2) and is used for pulverizing the grinding raw material; The granulation mechanism (5) is arranged on the front side of the carbonization box (2); The crushing mechanism (4) comprises a crushing box (41), a feed port (411), a filter frame (412), a motor (42), a mounting plate (421), a rotating rod (422), an electric push rod (423), a support frame (424), and a grinding roller (425); The crushing box (41) is arranged on the top of the carbonization box (2), and the feed port (411) is connected to the top of the crushing box (41); The filter frame (412) is arranged at the bottom of the crushing box (41) and is used to screen the raw materials; The motor (42) is connected to the back of the crushing box (41) through a mounting plate (421), the output end of the motor (42) is connected to a rotating rod (422), and the rotating rod (422) penetrates the back of the crushing box (41) and extends to the inside of the crushing box (41); The electric push rod (423) is connected to one side of the outer wall of the rotating rod (422), the support frame (424) is connected to the output end of the electric push rod (423), and the grinding roller (425) is rotatably connected to the inner wall of the support frame (424) for grinding and grinding the raw materials in the grinding box (41).

2. The mineral-based straw biochar granulation device for water environment treatment according to claim 1 is characterized in that: The filter frame (412) is slidably connected to the bottom of the crushing box (41), and push plates (413) are respectively connected to the two sides of the outer wall of the filter frame (412), and the bottom of the push plate (413) is connected to a gas spring (414), and the gas spring (414) is connected to the top of the carbonization box (2).

3. The mineral-based straw biochar granulation device for water environment treatment according to claim 1 is characterized in that: A scraper (426) is connected to one side of the outer wall of the rotating rod (422), and the scraper (426) contacts the inner wall of the crushing box (41). A material leakage groove (4261) is provided at one end of the scraper (426) that contacts the crushing box (41), and the angle between the scraper (426) and the support frame (424) is ninety degrees.

4. The mineral-based straw biochar granulation device for water environment treatment according to claim 1 is characterized in that: The granulation mechanism (5) comprises a material pushing component (51), a compacting component (52), a coagulation aid component (53), and a cutting component (54); The pushing component (51) is arranged inside the carbonization box (2) and is used to push out the biochar powder; The compacting assembly (52) is arranged on the front side of the carbonization box (2) and is used to compact the biochar powder into blocks; The coagulation aid component (53) is arranged on the front side of the carbonization box (2) and is used to drip glue into the biochar powder; The cutting assembly (54) is arranged on the front side of the base (1) and is used to cut the biochar blocks into particles.

5. The mineral-based straw biochar granulation device for water environment treatment according to claim 4 is characterized in that: The material pushing assembly (51) comprises a cylinder (511), a supporting plate (512) and a supporting frame (513); The cylinder (511) is respectively connected to both sides of the base (1); the support frame (513) is arranged at the bottom of the carbonization box (2) and is slidably connected; the support plate (512) is connected to the back of the support frame (513); and both sides of the support frame (513) are respectively connected to one end of the cylinder (511) at the corresponding position.

6. The mineral-based straw biochar granulation device for water environment treatment according to claim 4 is characterized in that: The compacting assembly (52) comprises a connecting plate (521), a first connecting rod (522), and a compacting plate (523); The connecting plate (521) is connected to the front side of the outer wall of the filter frame (412), the first connecting rod (522) is connected to the bottom of the connecting plate (521), and the compacting plate (523) is connected to the bottom of the first connecting rod (522).

7. The mineral-based straw biochar granulation device for water environment treatment according to claim 6 is characterized by: The two sides of the connection plate (521) are respectively slidably connected to limit rods (524), and the limit rods (524) are connected to the top of the carbonization box (2).

8. The mineral-based straw biochar granulation device for water environment treatment according to claim 6, characterized in that: The coagulation aid assembly (53) comprises a second connecting rod (531), a liquid storage box (532), a sealing frame (533), a liquid discharge hole (534), and a liquid injection pipe (535); The second connecting rod (531) is connected to the bottom of the connecting plate (521) and is located on the back of the first connecting rod (522); the liquid storage box (532) is connected to the bottom of the second connecting rod (531); the sealing frame (533) is slidably connected to the outer wall of the liquid storage box (532), and the sealing frame (533) is connected to the carbonization box (2); the drainage hole (534) is opened at the bottom of the front side of the liquid storage box (532); and the injection pipe (535) is connected to the top of the liquid storage box (532).

9. The mineral-based straw biochar granulation device for water environment treatment according to claim 4, characterized in that: The cutting assembly (54) comprises a support frame (541), a support rod (542), a hydraulic rod (543), a support plate (544), and a cutting knife (545); The support frame (541) is connected to the top of the front side of the base (1); the support rod (542) is respectively fixedly connected to the two sides of the bottom of the support frame (541); the hydraulic rod (543) is connected to one end of the support rod (542); the support plate (544) is connected to the top of the hydraulic rod (543); the back side of the support plate (544) is connected to a cutting knife (545), and the cutting knife (545) extends to the top of the support frame (541).

10. A method for making granules of mineral-based straw biochar for water environment treatment, applied to the mineral-based straw biochar granulation device for water environment treatment as described in any of claims 1 to 9, characterized in that: The following steps are involved: Step 1: crushing and grinding. Add straw segments and tailings fragments of appropriate proportions into the crushing box (41) from the feed port (411). Start the motor (42) to drive the grinding roller (425) arranged outside the rotating rod (422) to roll in the crushing box (41) to facilitate the corresponding raw materials to be ground and crushed. Since the hardness of the straw segments and the tailings fragments is different, the mixed crushing and grinding method is more conducive to grinding the straw segments with fibers into powder. During the grinding process, the tailings fragments are harder and will be crushed first, forming smaller fragments to cut the straw segments, thereby improving the grinding effect. During the grinding process, the electric push rod (423) will gradually extend to reduce the distance between the grinding roller (425) and the inner wall of the crushing box (41), so as to facilitate the crushing and grinding of the raw materials into powder by repeated rolling; Step 2, auxiliary grinding, by screening the raw material powder through the filter frame (412) provided in the crushing box (41), so that the particles of appropriate size fall into the carbonization box (2), while the larger particles will remain therein and be repeatedly ground, and the rotating rod (422) drives the grinding roller (425) to rotate, and also drives the scraper (426) to scrape the raw materials at the bottom of the crushing box (41), so as to prevent the materials from being concentrated and accumulated at the bottom of the crushing box (41), which affects the grinding effect; Step 3: Screening the powder. Since the filter frame (412) is arranged to slide up and down at the bottom of the crushing box (41), the grinding roller (425) will press it down each time it passes by. When the grinding roller (425) leaves the filter frame (412), the tension of the gas spring (414) will push the push plate (413) to drive the filter frame (412) to reset, so that the filter frame (412) will shake to avoid clogging of the filter frame (412). Step 4: Carbonization: After the grinding is completed, the burner (3) is started to heat the powder inside the carbonization box (2) to carbonize it; Step 5, assisting agglomeration, the cylinder (511) drives the support frame (513) connected to the support plate (512) to slowly push out the carbonized powder, and at this time, each time the filter frame (412) is pressed down by the upper grinding roller (425), the liquid storage box (532) connected to the second connecting rod (531) below the connecting plate (521) is driven to move downward, and the drainage hole (534) on the liquid storage box (532) is exposed outside the sealing frame (533), so that the glue will drip on the carbonized powder to assist its coagulation; Step 5: Compact and make carbon blocks. The connecting plate (521) reciprocates up and down, driving the compacting plate (523) connected to the first connecting rod (522) to compact the carbonized powder dripped with glue to make it more compact, so as to prevent it from being scattered or broken during the later transportation process. Step 6: Cut the carbon blocks into pellets. When the support frame (513) slowly moves until the frame touches the cutting knife (545), the hydraulic rod (543) will extend and retract to drive the cutting knife (545) above the support plate (544) to descend. When the cutting knife (545) is in the support frame (513), it will extend again to cut the carbon blocks to facilitate pelletization.

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