A kind of manufacturing equipment and method of straw biomass carbon-based slow-release fertilizer

Abstract

The present invention relates to the technical field of carbon-based slow-release fertilizer preparation equipment, and in particular to a manufacturing equipment for straw biomass carbon-based slow-release fertilizer, comprising a crushing box and a feeding bin, wherein the feeding bin is fixedly arranged on one side of the crushing box, and a sand filter box is fixedly arranged on the bottom surface of the feeding bin, and the sand filter box is fixedly connected to the crushing box; a feeding roller for conveying straw is rotatably arranged at the bottom end of the inner wall of the feeding bin, and a relatively movable supporting mechanism is arranged on the outer sliding sleeve of the feeding roller. The present invention can effectively filter out the sand and gravel on the straw by setting a crushing mechanism, a pressing plate and a vibrating filter plate, and the sand and gravel fall between the feeding rollers under the action of the gravity of the sand and gravel and are crushed by the crushing mechanism, so as to avoid the sand and gravel from entering when the straw is crushed, so as to prevent the crushing teeth from being damaged, so as to prevent the crushing efficiency of the straw from being affected, and at the same time, the sand and gravel can be prevented from being introduced into the pyrolysis furnace, so as to prevent the carbonization efficiency of the straw from being affected, thereby preventing the quality of the carbon-based slow-release fertilizer from being affected during the preparation process.

Description

Technical Field

[0001] The invention relates to the technical field of carbon-based slow-release fertilizer preparation equipment, and in particular to a straw biomass carbon-based slow-release fertilizer preparation equipment and a straw biomass carbon-based slow-release fertilizer preparation method. Background Art

[0002] Straw biomass carbon-based slow-release fertilizer is a fertilizer made from agricultural waste (such as straw), mainly used to improve soil fertility and improve crop growth.

[0003] The manufacturing process of straw biomass-based slow-release fertilizer includes:

[0004] 1. Use a straw crusher to crush the straw;

[0005] 2. Use a pyrolysis furnace to carbonize the straw at high temperature in an oxygen-deficient or low-oxygen environment;

[0006] 3. Use a mixer to evenly mix the added fertilizer ingredients with the biochar to ensure uniform nutrient distribution;

[0007] 4. Use a granulator to shape and dry the fertilizer.

[0008] Among them, the process of using a straw crusher to crush straw is to first directly put the straw into the crusher for crushing. Although this crushing method can quickly complete the crushing of the straw, it is inevitable that more sand and gravel will be attached after the straw is put into the feed bin of the crusher. The introduction of sand and gravel will contact the crushing teeth in the crushing box, and the crushing teeth will have friction during the crushing of sand and gravel. Long-term crushing of sand and gravel will reduce the service life of the crushing teeth, thereby reducing the crushing efficiency of the straw. At the same time, the sand and gravel need to be carbonized at high temperature after entering the crushing box with the straw. During the carbonization process, the sand and gravel will affect the carbonization result of the straw, and the carbon-based substances will be discharged at the same time after the carbonization is completed. The sand and gravel need to be processed separately for filtering. However, it is difficult to filter out the sand and gravel after carbonization, and the carbon-based substances will be accompanied during filtration, which will affect the quality of the preparation of carbon-based slow-release fertilizer. Summary of the invention

[0009] The present invention aims at the deficiencies in the prior art and provides the following technical solutions:

[0010] A manufacturing device for straw biomass carbon-based slow-release fertilizer comprises a crushing box and a feeding bin, wherein the feeding bin is fixedly arranged on one side of the crushing box, a sand filter box is fixedly arranged on the bottom surface of the feeding bin, and the sand filter box is fixedly connected to the crushing box; a feeding roller for conveying straw is rotatably arranged at the bottom end of the inner wall of the feeding bin, and a relatively movable supporting mechanism is arranged on the outer sliding sleeve of the feeding roller; a crushing mechanism for crushing sand and gravel between the feeding rollers is arranged on one side of the supporting mechanism; a pressing plate for crimping and hammering the straw is fixedly arranged on the top surface of the supporting mechanism; a power mechanism is arranged on the periphery of the feeding bin, and the power mechanism is used to drive the pressing plate to slide and the feeding roller to rotate; a vibrating filter plate in an inclined state is arranged on the inner wall of the sand filter box.

[0011] As an improvement of the above technical solution, the supporting mechanism includes a slide plate, which is slidably sleeved on the periphery of the feeding roller and is rotationally connected to the feeding roller, and the pressure plate is fixedly arranged on the top surface of the slide plate.

[0012] As an improvement of the above technical solution, the crushing mechanism includes a pressure rod and a crushing rod, the pressure rod is arranged between the feeding rollers, the pressure rod is fixedly arranged on the side of the slide, the crushing rod is slidably arranged in the pressure rod, and a spring is fixedly arranged between the crushing rod and the inner wall of the pressure rod.

[0013] As an improvement of the above technical solution, the power mechanism includes a driving component, a linkage component and a pressing component, the driving component includes a first gear, a second gear and a toothed chain, the end of the feeding roller passes through the feeding bin and is fixedly connected to the first gear, the second gear is rotatably arranged on the periphery of the feeding bin, and a rotating motor for driving the second gear to rotate is arranged on the feeding bin, and the toothed chain is meshingly sleeved on the periphery of the first gear and the second gear.

[0014] As an improvement of the above technical solution, the linkage component includes a first bevel gear, a second bevel gear, a swing rod and a half gear, one end of the second gear is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to the first bevel gear, one side of the first bevel gear is meshingly connected to the second bevel gear, a support rod with an L-shaped structure is rotatably connected to the axis of the second bevel gear, a fixing rod is fixedly connected between the support rod and the feeding bin, a guide rod is fixedly connected to one side of the second bevel gear near the edge, a limiting slide groove for the guide rod to slide is provided on the swing rod, the top end of the swing rod is fixedly connected to the half gear, a support rod is arranged between the swing rod near the top and the support rod, one end of the support rod is rotatably connected to the swing rod, and the other end is fixedly connected to the support rod.

[0015] As an improvement of the above technical solution, the pressing component includes a push rod, a connecting plate, a sleeve, a limit rod and a tooth block. The push rod is slidably connected to the feeding bin, one end of the push rod is fixedly connected to the pressure plate, and the other end is fixedly connected to the connecting plate. The connecting plate is fixedly connected to the sleeve, and the sleeve is slidably sleeved on the periphery of the limit rod. One end of the limit rod is fixedly connected to the feeding bin, and the tooth block is fixedly connected to the bottom end of the sleeve. The tooth blocks are provided in multiple groups and are linearly equidistantly arranged along the bottom end of the sleeve, and the tooth blocks are meshed with the half gear.

[0016] As an improvement of the above technical solution, a suction mechanism is fixedly arranged between the feeding bin and the top surface of the crushing box, and the suction mechanism includes a fan dust suction bin, a dust collecting bin and a connecting pipe. The fan dust suction bin is fixedly arranged on the top surface of the crushing box, the dust collecting bin is fixedly arranged on the top surface of the feeding bin, and the connecting pipe is fixedly connected between the dust collecting bin and the fan dust suction bin.

[0017] A method for producing a straw biomass carbon-based slow-release fertilizer comprises the following steps:

[0018] S1: Material preparation: 20 parts of straw, 10 parts of sodium hydroxide solution, and several parts of inert gas, calculated by weight;

[0019] S2: Crushing: feeding the straw into the feeding bin, and conveying the straw toward the crushing box while the feeding roller rotates;

[0020] S21: crushing gravel: the crushing rod slides between the feeding rollers by sliding the pressing plate, and the pressing plate squeezes the straw to expose the gravel and drop it between the feeding rollers. At this time, the gravel is crushed under the action of the crushing rod;

[0021] S22: filtering sand and gravel: the sand and gravel crushed by the crushing rod fall onto the vibrating filter plate in an inclined state, and the sand and gravel are separated from part of the straw leaves. The straw leaves falling onto the vibrating filter plate enter the crushing box from the second material port for crushing, and the crushed sand and gravel are filtered;

[0022] S23: stirring: a stirring device is provided on the inner wall of the crushing box, and after the straw is crushed, a sodium hydroxide solution is sprayed into the crushed straw, and the crushed straw is stirred, and then the crushed straw washed with sodium hydroxide is led out for drying;

[0023] S3: Carbonization: The dried straw shreds are introduced into the pyrolysis furnace, and the temperature is quickly raised to 200°C. At the same time, an inert gas is injected into the pyrolysis furnace, and then the temperature in the pyrolysis furnace is raised to 650°C and maintained at this temperature. During the process, the straw shreds are always pyrolyzed in a low-oxygen environment, and the straw shreds are carbonized;

[0024] S4: Mixing: Mix the carbon-based substances produced after carbonization with fertilizers to ensure uniform nutrients;

[0025] S5: Granulation and packaging: The mixed materials are granulated by a granulator, then dried and packaged, and tested at the same time.

[0026] As an improvement of the above technical solution, the fertilizer in step S4 includes nitrogen, phosphorus and potassium nutrients.

[0027] Beneficial effects of the present invention:

[0028] The arrangement of the crushing mechanism, the pressing plate and the vibrating filter plate can effectively expose the sand and gravel on the straw, and under the action of the gravity of the sand and gravel, they fall between the feeding rollers and are crushed by the crushing mechanism, and the crushed sand and gravel fall into the filter sand box for filtration, which can effectively filter out the sand and gravel on the straw, and avoid sand and gravel entering when the straw is crushed, so as to prevent damage to the crushing teeth and affect the crushing efficiency of the straw. At the same time, it can prevent sand and gravel from being introduced into the pyrolysis furnace to prevent affecting the carbonization efficiency of the straw, thereby avoiding affecting the quality of the carbon-based slow-release fertilizer during the preparation process and improving the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from another viewing angle;

[0031] Figure 3 It is an enlarged schematic diagram of the toothed chain structure of the present invention;

[0032] Figure 4 It is an enlarged schematic diagram of the first bevel gear and the second bevel gear structure of the present invention;

[0033] Figure 5 This is an enlarged view of the position relationship between the ejector rod and the sleeve of the present invention;

[0034] Figure 6 This is an enlarged view of the position relationship between the pressing plate and the pressing rod of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the sand filter box of the present invention;

[0036] Figure 8 It is a schematic diagram of the structure of the crushing box of the present invention.

[0037] 1. The breaker bar is provided with a plurality of gears, each of which is provided with a plurality of gears. The breaker bar has a plurality of gears, each of which is provided with a plurality of gears. The breaker bar has a plurality of gears, each of which is provided with a plurality of gears. The breaker bar has a plurality of gears, each of which is provided with a plurality of gears. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Example 1

[0039] Please refer to Figure 1-Figure 8 As shown, the present invention provides a manufacturing device for straw biomass carbon-based slow-release fertilizer, comprising a crushing box 1 and a feeding bin 2, wherein the feeding bin 2 is fixedly arranged on one side of the crushing box 1, and a sand filter box 3 is fixedly arranged on the bottom surface of the feeding bin 2, and the sand filter box 3 is fixedly connected to the crushing box 1;

[0040] A feeding roller 22 for conveying straw is rotatably arranged at the bottom end of the inner wall of the feeding bin 2, and a relatively movable supporting mechanism is arranged on the outer sliding sleeve of the feeding roller 22;

[0041] A crushing mechanism for crushing sand and gravel between the feeding rollers 22 is provided on one side of the supporting mechanism;

[0042] A pressing plate 42 for pressing and hammering the straw is fixedly arranged on the top surface of the supporting mechanism;

[0043] A power mechanism is disposed on the periphery of the feeding bin 2, and the power mechanism is used to drive the pressing plate 42 to slide and the feeding roller 22 to rotate;

[0044] The inner wall of the sand filter box 3 is provided with a vibrating filter plate 34 in an inclined state.

[0045] In the present embodiment, the feeding bin 2 is arranged on one side of the crushing box 1, and the straw is introduced into the feeding bin 2. At this time, through the arrangement of the sand filter box 3, after the straw is placed in the feeding bin 2, the sand and gravel will move downward during the movement, so that the sand and gravel will fall on the feeding roller 22, and the power mechanism can be used to drive the pressing plate 42 to slide, and also to drive the feeding roller 22 to rotate, so that when the feeding roller 22 drives the straw to move toward the crushing box 1, the pressing plate 42 can be driven by the power mechanism to slide relatively in the feeding bin 2, and the relative sliding of the pressing plate 42 can drive the supporting mechanism to move, and the supporting mechanism drives the crushing mechanism to move, and the crushing mechanism can crush the sand and gravel between the feeding rollers 22, so that the sand and gravel fall toward the sand filter box 3, and the pressing plate 42 In the sliding state, the straw in the feeding bin 2 can be crimped, and the sand and gravel on the straw can be knocked off by crimping and hammering the straw, and vibration force will be generated between the straw during the crimping and hammering process, so that the sand and gravel can fall up and down toward the feeding roller 22. At this time, the sand and gravel can be crushed by the crushing mechanism to avoid the sand and gravel falling between the feeding rollers 22 and blocking the feeding rollers 22, so as not to affect the feeding of the straw. At the same time, when the sand and gravel fall into the sand filter box 3, they will first fall on the vibrating filter plate 34 in an inclined state. When the vibrating filter plate 34 vibrates, the crushed sand and gravel fall on the bottom end of the inner wall of the sand filter box 3, and some straw leaves will slide along the vibrating filter plate 34 toward the crushing box 1, effectively filtering the sand and gravel to prevent the sand and gravel from entering the crushing box 1.

[0046] Among them, through the arrangement of the crushing mechanism, the pressing plate 42 and the vibrating filter plate 34, the sand and gravel on the straw can be effectively exposed, and under the action of the gravity of the sand and gravel, they fall between the feeding rollers 22 and are crushed by the crushing mechanism, and the crushed sand and gravel fall into the filter sand box 3 for filtration, which can effectively filter out the sand and gravel on the straw, and avoid sand and gravel entering when the straw is crushed, so as to prevent damage to the crushing teeth and prevent affecting the crushing efficiency of the straw. At the same time, it can prevent sand and gravel from being introduced into the pyrolysis furnace to prevent affecting the carbonization efficiency of the straw, thereby avoiding affecting the quality of the carbon-based slow-release fertilizer during the preparation process and improving the use efficiency.

[0047] Among them, the benefits of crushing and removing sand and gravel on the straw during the feeding process include:

[0048] 1. Avoid the straw from getting stuck between the feeding rollers 22 during the conveying process, so as not to affect the conveying efficiency of the straw.

[0049] 2. Prevent sand and gravel from wearing the crushing teeth in the crushing box 1.

[0050] 3. Avoid filtering after crushing the straw. The particle size of the crushed straw should be basically the same as the particle size of sand and gravel. At this time, filtering the sand and gravel cannot guarantee the filtration of sand and gravel, so as to ensure that the sand and gravel are collected in the crushed straw.

[0051] 4. To prevent sand and gravel from entering the pyrolysis furnace and affecting carbonization. The melting point of sand and gravel is relatively high, and the sand and gravel will not melt during the high-temperature carbonization process. Therefore, when the sand and gravel are carbonized with the straw in the pyrolysis furnace at high temperature, the sand and gravel will not melt. After the carbonization is completed, the sand and gravel will be discharged at the same time as the carbonized carbon-based substances, affecting the preparation of the subsequent carbon-based slow-release fertilizer.

[0052] The supporting mechanism includes a slide plate 421 , which is slidably sleeved on the periphery of the feeding roller 22 , and the slide plate 421 is rotatably connected to the feeding roller 22 , and the pressing plate 42 is fixedly arranged on the top surface of the slide plate 421 .

[0053] The crushing mechanism includes a pressure rod 5 and a crushing rod 51. The pressure rod 5 is arranged between the feeding rollers 22. The pressure rod 5 is fixedly arranged on the side of the slide plate 421. The crushing rod 51 is slidably arranged in the pressure rod 5. A spring is fixedly arranged between the crushing rod 51 and the inner wall of the pressure rod 5.

[0054] The sliding of the pressure plate 42 can drive the slide plate 421 to slide in the feeding bin 2, and the slide plate 421 drives the pressure rod 5 and the crushing rod 51 to move, wherein the pressure rod 5 and the crushing rod 51 are arranged between the feeding rollers 22, so as to crush the sand and gravel.

[0055] The pressing plate 42 can slide to move relatively, thereby pressing and hammering the straw, causing the straw to generate vibration force, thereby exposing the sand and gravel wrapped between the straws, and falling between the feeding rollers 22 under the action of the gravity of the sand and gravel.

[0056] Among them, after the sand and gravel fall between the feeding rollers 22, the sand and gravel can be hammered and crushed through the relative movement of the crushing rod 51, and the crushing rod 51 is elastically and telescopically arranged in the pressure rod 5. After hitting the sand and gravel, it can generate elastic force and shock force, thereby crushing the sand and gravel, and the crushed sand and gravel fall into the sand filter box 3.

[0057] Among them, the sand and gravel falling into the sand filter box 3 are caught by the vibrating filter plate 34, and the sand and gravel can be filtered under the action of the vibration of the vibrating filter plate 34, wherein the vibration generation of the vibrating filter plate 34 belongs to the prior art, and no excessive structural elaboration is made. After the sand and gravel are filtered, they enter the bottom end of the inner wall of the sand filter box 3, and the straw leaves urgently need to move toward the crushing box 1 along the inclined direction of the vibrating filter plate 34.

[0058] A first material opening 12 is provided on the crushing box 1 corresponding to the feeding bin 2 , and a second material opening 13 is provided on the crushing box 1 corresponding to the sand filter box 3 .

[0059] Among them, through holes 31 are opened near the bottom of both sides of the sand filter box 3, and sealing plates 32 are sealed and inserted in the through holes 31. By removing the sealing plates 32, sand and gravel at the bottom of the inner wall of the sand filter box 3 can be easily discharged.

[0060] The power mechanism includes a driving component, a linkage component and a pressing component. The driving component includes a first gear 221, a second gear 23 and a toothed chain 231. The end of the feeding roller 22 passes through the feeding bin 2 and is fixedly connected to the first gear 221. The second gear 23 is rotatably arranged on the periphery of the feeding bin 2. A rotating motor for driving the second gear 23 to rotate is arranged on the feeding bin 2. The toothed chain 231 is meshingly sleeved on the periphery of the first gear 221 and the second gear 23.

[0061] The second gear 23 can be driven to rotate by starting the rotary motor, and the second gear 23 drives the toothed chain 231 to rotate, so that the toothed chain 231 can drive the first gear 221 to rotate, and the first gear 221 drives the feeding roller 22 to rotate, so that the feeding roller 22 transports the straw.

[0062] The linkage components include a first bevel gear 7, a second bevel gear 8, a swing rod 9 and a half gear 92. One end of the second gear 23 is fixedly connected to a connecting rod 71, one end of the connecting rod 71 is fixedly connected to the first bevel gear 7, one side of the first bevel gear 7 is meshed with the second bevel gear 8, and the second bevel gear 8 is rotatably connected to a support rod 81 of an L-shaped structure at the axis of the second bevel gear 8. A fixing rod 24 is fixedly connected between the support rod 81 and the feeding bin 2. A guide rod 82 is fixedly connected to one side of the second bevel gear 8 near the edge. A limiting slide groove 91 is provided on the swing rod 9 for the guide rod 82 to slide. The top of the swing rod 9 is fixedly connected to the half gear 92. A support rod 811 is provided between the swing rod 9 and the support rod 81 near the top. One end of the support rod 811 is rotatably connected to the swing rod 9, and the other end is fixedly connected to the support rod 81.

[0063] The rotation of the second gear 23 can drive the connecting rod 71 to rotate, the connecting rod 71 drives the first bevel gear 7 to rotate, the first bevel gear 7 drives the second bevel gear 8 to rotate under the limit of the support rod 81 and the fixed rod 24, the second bevel gear 8 drives the guide rod 82 to rotate, the guide rod 82 is arranged near the edge of the second bevel gear 8, and the rotation of the guide rod 82 can slide in the limiting slide groove 91, so that the swing rod 9 is in a reciprocating swinging state. At this time, under the limiting action of the support rod 811, the swing rod 9 drives the half gear 92 to be in a swinging state.

[0064] The pressing component includes a push rod 4, a connecting plate 41, a sleeve 6, a limiting rod 61 and a tooth block 62. The push rod 4 is slidably connected to the feeding bin 2. One end of the push rod 4 is fixedly connected to the pressure plate 42, and the other end is fixedly connected to the connecting plate 41. The connecting plate 41 is fixedly connected to the sleeve 6. The sleeve 6 is slidably sleeved on the periphery of the limiting rod 61. One end of the limiting rod 61 is fixedly connected to the feeding bin 2. The tooth block 62 is fixedly connected to the bottom end of the sleeve 6. There are multiple groups of tooth blocks 62, which are linearly equidistantly arranged along the bottom end of the sleeve 6. The tooth block 62 is meshed and connected with the half gear 92.

[0065] By swinging the half gear 92 and meshing the half gear 92 with the tooth block 62, the sleeve 6 can be in a sliding state when the half gear 92 is swinging, and the sleeve 6 drives the connecting plate 41 to move, and the connecting plate 41 drives the push rod 4 to move, thereby driving the pressure plate 42 fixed at the end of the push rod 4 to slide relatively in the feeding bin 2.

[0066] A method for producing a straw biomass carbon-based slow-release fertilizer comprises the following steps:

[0067] S1: Material preparation: 20 parts of straw, 10 parts of sodium hydroxide solution, and several parts of inert gas, calculated by weight;

[0068] S2: Crushing: feeding the straw into the feeding bin 2, and conveying the straw toward the crushing box 1 while the feeding roller 22 rotates;

[0069] S21: crushing gravel: the crushing rod 51 slides between the feeding rollers 22 by sliding the pressing plate 42, and the pressing plate 42 squeezes the straw to expose the gravel and drop it between the feeding rollers 22. At this time, the gravel is crushed under the action of the crushing rod 51;

[0070] S22: filtering sand and gravel: the sand and gravel crushed by the crushing rod 51 falls onto the vibrating filter plate 34 in an inclined state, and the sand and gravel are separated from part of the straw leaves. The straw leaves falling onto the vibrating filter plate 34 enter the crushing box 1 from the second material opening 13 to be crushed, and the crushed sand and gravel are filtered;

[0071] S23: stirring: a stirring device is provided on the inner wall of the crushing box 1, and a sodium hydroxide solution is sprayed into the crushed straw, and the crushed straw is stirred, and then the crushed straw washed with sodium hydroxide is led out for drying;

[0072] S3: Carbonization: The dried straw shreds are introduced into the pyrolysis furnace, and the temperature is quickly raised to 200°C. At the same time, an inert gas is injected into the pyrolysis furnace, and then the temperature in the pyrolysis furnace is raised to 650°C and maintained at this temperature. During the process, the straw shreds are always pyrolyzed in a low-oxygen environment, and the straw shreds are carbonized;

[0073] S4: Mixing: Mix the carbon-based substances produced after carbonization with fertilizers to ensure uniform nutrients;

[0074] S5: Granulation and packaging: The mixed materials are granulated by a granulator, then dried and packaged, and tested at the same time.

[0075] The fertilizer in step S4 includes nitrogen, phosphorus and potassium nutrients.

[0076] Among them, in addition to adding nutrients such as nitrogen, phosphorus, and potassium, other soil conditioners can also be added to the fertilizer to ensure the nutritional content of the carbon-based slow-release fertilizer. Example 2

[0077] Please refer to Figure 1 and Figure 2 As shown, other parts of this embodiment are the same as those of the embodiment 1, and the difference lies in that a suction mechanism is provided between the feeding bin 2 and the top surface of the crushing box 1.

[0078] A suction mechanism is fixedly arranged between the feeding bin 2 and the top surface of the crushing box 1, and the suction mechanism includes a fan dust suction bin 11, a dust collecting bin 21 and a connecting pipe 211. The fan dust suction bin 11 is fixedly arranged on the top surface of the crushing box 1, the dust collecting bin 21 is fixedly arranged on the top surface of the feeding bin 2, and the connecting pipe 211 is fixedly connected between the dust collecting bin 21 and the fan dust suction bin 11.

[0079] By setting the fan dust collection bin 11 and arranging a suction fan in the fan dust collection bin 11 , the suction fan can be started to generate suction through the connecting pipe 211 , and at this time, the dust is sucked in through the dust collection bin 21 .

[0080] Among them, through the setting of the fan dust collection bin 11, the surrounding dust can be collected while conveying the straw to prevent the dust from spreading in the feeding bin 2. The suction force of the dust collection is not too large, but is moderate, and the straw leaves will not be sucked away.

[0081] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A straw biomass carbon-based slow-release fertilizer manufacturing device, comprising a crushing box (1) and a feeding bin (2), wherein the feeding bin (2) is fixedly arranged on one side of the crushing box (1), a sand filter box (3) is fixedly arranged on the bottom surface of the feeding bin (2), and the sand filter box (3) is fixedly connected to the crushing box (1), characterized in that: A feeding roller (22) for conveying straw is rotatably arranged at the bottom end of the inner wall of the feeding bin (2), and a relatively movable supporting mechanism is arranged on the outer sliding sleeve of the feeding roller (22); A crushing mechanism for crushing sand and gravel between the feeding rollers (22) is provided on one side of the support mechanism; A pressing plate (42) for pressing and hammering the straw is fixedly arranged on the top surface of the support mechanism; A power mechanism is disposed on the periphery of the feeding bin (2), and the power mechanism is used to drive the pressing plate (42) to slide and the feeding roller (22) to rotate; The inner wall of the sand filter box (3) is provided with a vibrating filter plate (34) in an inclined state.

2. The manufacturing equipment of a straw biomass carbon-based slow-release fertilizer according to claim 1, characterized in that: The support mechanism comprises a slide plate (421), the slide plate (421) is slidably sleeved on the periphery of the feeding roller (22), and the slide plate (421) is rotationally connected to the feeding roller (22), and the pressing plate (42) is fixedly arranged on the top surface of the slide plate (421).

3. The manufacturing equipment of a straw biomass carbon-based slow-release fertilizer according to claim 2, characterized in that: The pounding mechanism comprises a pressure rod (5) and a pounding rod (51); the pressure rod (5) is arranged between the feeding rollers (22); the pressure rod (5) is fixedly arranged on the side of the slide plate (421); the pounding rod (51) is slidably arranged inside the pressure rod (5); and a spring is fixedly arranged between the pounding rod (51) and the inner wall of the pressure rod (5).

4. The manufacturing equipment of a straw biomass carbon-based slow-release fertilizer according to claim 1, characterized in that: The power mechanism comprises a driving component, a linkage component and a pressing component, the driving component comprises a first gear (221), a second gear (23) and a toothed chain (231), the end of the feeding roller (22) passes through the feeding bin (2) and is fixedly connected to the first gear (221), the second gear (23) is rotatably arranged on the periphery of the feeding bin (2), the feeding bin (2) is provided with a rotating motor for driving the second gear (23) to rotate, and the toothed chain (231) is meshingly sleeved on the periphery of the first gear (221) and the second gear (23).

5. The manufacturing equipment of a straw biomass carbon-based slow-release fertilizer according to claim 4, characterized in that: The linkage component comprises a first bevel gear (7), a second bevel gear (8), a swing rod (9) and a half gear (92); one end of the second gear (23) is fixedly connected to a connecting rod (71); one end of the connecting rod (71) is fixedly connected to the first bevel gear (7); one side of the first bevel gear (7) is meshingly connected to the second bevel gear (8); the second bevel gear (8) is rotatably connected to an L-shaped support rod (81) at its axis; the support rod (81) and the feeding bin (2) are connected to each other. A fixing rod (24) is fixedly connected between the two gears; a guide rod (82) is fixedly connected to one side of the second bevel gear (8) near the edge; a limiting slide groove (91) is provided on the swing rod (9) for the guide rod (82) to slide; the top end of the swing rod (9) is fixedly connected to the half gear (92); a support rod (811) is provided between the top end of the swing rod (9) and the support rod (81); one end of the support rod (811) is rotatably connected to the swing rod (9) and the other end is fixedly connected to the support rod (81).

6. The manufacturing equipment of a straw biomass carbon-based slow-release fertilizer according to claim 5, characterized in that: The pressing component comprises a push rod (4), a connecting plate (41), a sleeve (6), a limiting rod (61) and a tooth block (62); the push rod (4) is slidably connected to the feeding bin (2); one end of the push rod (4) is fixedly connected to the pressing plate (42), and the other end is fixedly connected to the connecting plate (41); the connecting plate (41) is fixedly connected to the sleeve (6); the sleeve (6) is slidably sleeved on the periphery of the limiting rod (61); one end of the limiting rod (61) is fixedly connected to the feeding bin (2); the tooth block (62) is fixedly connected to the bottom end of the sleeve (6); a plurality of groups of tooth blocks (62) are provided and are linearly equidistantly arranged along the bottom end of the sleeve (6); and the tooth blocks (62) are meshingly connected to the half gear (92).

7. The manufacturing equipment of a straw biomass carbon-based slow-release fertilizer according to claim 1, characterized in that: An air suction mechanism is fixedly arranged between the feeding bin (2) and the top surface of the crushing box (1), the air suction mechanism comprising a fan dust suction bin (11), a dust collecting bin (21) and a connecting pipe (211); the fan dust suction bin (11) is fixedly arranged on the top surface of the crushing box (1), the dust collecting bin (21) is fixedly arranged on the top surface of the feeding bin (2), and the connecting pipe (211) is fixedly connected between the dust collecting bin (21) and the fan dust suction bin (11).

8. A method for manufacturing a straw biomass carbon-based slow-release fertilizer, using the straw biomass carbon-based slow-release fertilizer manufacturing equipment according to any one of claims 1 to 7, characterized in that: S1: Material preparation: 20 parts of straw, 10 parts of sodium hydroxide solution, and several parts of inert gas, calculated by weight; S2: Crushing: feeding the straw into the feeding bin (2), and conveying the straw toward the crushing box (1) while the feeding roller (22) is rotating; S21: crushing the sand and gravel: the pressing plate (42) slides to cause the crushing rod (51) to slide between the feeding rollers (22), the pressing plate (42) squeezes the straw to expose the sand and gravel and causes the sand and gravel to fall between the feeding rollers (22), and at this time, the sand and gravel are crushed under the action of the crushing rod (51); S22: filtering sand and gravel: the sand and gravel crushed by the crushing rod (51) falls onto the vibrating filter plate (34) in an inclined state, and the sand and gravel are separated from part of the straw leaves. The straw leaves that fall onto the vibrating filter plate (34) enter the crushing box (1) through the second material opening (13) to be crushed, and the crushed sand and gravel are filtered; S23: stirring: a stirring device is provided on the inner wall of the crushing box (1), and after the straw is crushed, a sodium hydroxide solution is sprayed into the crushed straw, and the crushed straw is stirred, and then the crushed straw washed with sodium hydroxide is discharged and dried; S3: Carbonization: The dried straw shreds are introduced into the pyrolysis furnace, and the temperature is quickly raised to 200°C. At the same time, an inert gas is injected into the pyrolysis furnace, and then the temperature in the pyrolysis furnace is raised to 650°C and maintained at this temperature. During the process, the straw shreds are always pyrolyzed in a low-oxygen environment, and the straw shreds are carbonized; S4: Mixing: Mix the carbon-based substances produced after carbonization with fertilizers to ensure uniform nutrients; S5: Granulation and packaging: The mixed materials are granulated by a granulator, then dried and packaged, and tested at the same time.

9. The method for producing a straw biomass carbon-based slow-release fertilizer according to claim 8, characterized in that: The fertilizer in step S4 includes nitrogen, phosphorus and potassium nutrients.

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