Microbial fertilizer production system

Abstract

The present invention relates to the field of microbial fertilizer production, specifically a microbial fertilizer production system, wherein a raw material batching system is provided with a discharging conveyor belt connected to a granulator, a granulator, a drying device and a first cooling cylinder in a cooling system are sequentially connected through different conveyor belts, one side of the output end of the drying device is connected to an ash storage room, and the other side is provided with a first induced draft hopper, and the upper side of the ash storage room is connected to the first induced draft hopper through a first circulation pipeline, the input end of the first recovery conveyor belt is arranged below the first induced draft hopper, and the output end is arranged above the discharging conveyor belt, one side of the input end of the first cooling cylinder is connected to the ash storage room, and the other side is provided with a second induced draft hopper, and the upper side of the ash storage room is connected to the second induced draft hopper through a second circulation pipeline, the input end of the second recovery conveyor belt is arranged below the second induced draft hopper, and the output end is arranged in the raw material batching system. The present invention can realize automatic batching and fertilizer floating material recycling, and ensure sufficient dust removal.

Description

Technical Field

[0001] The invention relates to the field of microbial fertilizers, in particular to a microbial fertilizer production system. Background Art

[0002] Microbial fertilizers mainly utilize the life activities of certain microorganisms to give crops a specific fertilizer effect. In addition to containing a large number of beneficial microorganisms, microbial fertilizers also contain many other elements. Generally, microbial fertilizers include inorganic substances, phosphorus, potassium, organic matter, secondary elements, microorganisms, trace elements and other components. When producing microbial fertilizers, the above-mentioned components are first formulated into raw materials according to a specific proportion, and then the raw materials are stirred and fully mixed, and then granulated, dried, cooled and other procedures are performed to form granular fertilizers. However, in the prior art, the preparation of microbial fertilizer raw materials is mainly completed manually, which results in high labor intensity and low production efficiency.

[0003] Secondly, in the production process of microbial fertilizer, the semi-finished products formed after the raw materials are stirred and granulated need to enter the dryer for drying and then cooled. In the above process, dust floating objects will be generated. The dust floating objects in the prior art are usually directly discharged after being processed by dust removal equipment. However, in actual production, it is found that these dust floating objects contain a large amount of floating objects such as organic fertilizers, and these organic fertilizer floating objects are smaller in particle size and lighter in weight than other dusts, so there is a possibility of recycling and reusing them. In addition, the cooling equipment in the prior art mainly adopts a combination of water cooling and air cooling, and its design structure is relatively complex, the cost is high, and it is difficult to meet the requirements of large-scale continuous production.

[0004] Furthermore, for microbial fertilizers, since the semi-finished products have high humidity, they are very easy to adhere to the inner wall of the drying drum, causing problems such as material blockage. Therefore, it is necessary to equip the drying drum with a vibrating device to vibrate the materials away from the drum wall. At present, a common vibration structure is to arrange vibration rods at equal intervals on the outer wall of the drying drum. When the drying drum rotates, the ball at the head end of the vibration rod is used to knock against the drum wall to achieve vibration separation of the materials. However, it is found in actual production that due to the large volume and long length of the drying drum, the head end of the vibration rod can only achieve vibration separation of the materials in a limited area around it, and the separation effect needs to be improved. Therefore, in order to solve the above problems, the prior art There are many other forms of vibration device structures. For example, in the patent with the authorization announcement number CN211012214U mentioned above, multiple vibration motors are arranged outside the cylinder to realize vibration removal, but this method is relatively costly. Another example is a Chinese invention patent with the authorization announcement number CN209524740U, which discloses a vibration device for a composite microbial fertilizer dryer, in which a plurality of hollow curved pipe covers are arranged on the wall of the dryer cylinder. Vibration balls are arranged in the hollow curved pipe covers to vibrate and remove the semi-finished materials adhering to the inner wall of the outer cylinder. However, this method, like the vibration rod, can only affect the vibration removal of materials in a limited surrounding area. Summary of the invention

[0005] The purpose of the present invention is to provide a microbial fertilizer production system, which can realize automatic batching and recycle fertilizer floating materials with smaller particles and lighter weight, thereby reducing dust emissions and improving material utilization efficiency.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A microbial fertilizer production system, comprising a raw material batching system, a granulator, a drying device, a cooling system, an ash storage room, a first recovery conveyor belt and a second recovery conveyor belt, wherein the raw material batching system is provided with a discharge conveyor belt connected to the granulator, the granulator is connected to the drying device input end through a granulation output conveyor belt, the cooling system comprises a first cooling cylinder, an intermediate conveyor belt and a second cooling cylinder connected in sequence, and the drying device output end is connected to the first cooling cylinder input end through a drying output conveyor belt, and one side of the drying device output end is connected to the storage room through a first connecting pipeline. The ash storage room is connected with the first induced draft hopper on one side, and the other side is provided with a first induced draft hopper, and the upper side of the ash storage room is connected with the first induced draft hopper through a first circulation pipeline, the input end of the first recovery conveyor belt is arranged below the output port of the first induced draft hopper, and the output end is arranged above the discharging conveyor belt, one side of the input end of the first cooling cylinder is connected with the ash storage room through a second connecting pipeline, and the other side is provided with a second induced draft hopper, and the upper side of the ash storage room is connected with the second induced draft hopper through a second circulation pipeline, the input end of the second recovery conveyor belt is arranged below the output port of the second induced draft hopper, and the output end is arranged in the raw material batching system.

[0008] The raw material batching system includes a hopper platform, a material hopper, a feed conveyor belt, a batching hopper, a first batching conveyor belt, a second batching conveyor belt and a stirring assembly, wherein the hopper platform is located on the upper side of the ground, and a plurality of hopper cavities are arranged inside the hopper platform, and each material hopper is arranged in a corresponding hopper cavity, respectively. The input end of the feed conveyor belt is located below the output end of the material hopper in the corresponding hopper cavity, the output end of the feed conveyor belt is provided with a batching hopper, and the batching hopper is located above the first batching conveyor belt, a transmission material pit is provided under the ground, and the first batching conveyor belt is located in the transmission material pit, the input end of the second batching conveyor belt extends into the transmission material pit and is connected with the output end of the first batching conveyor belt, the output end of the second batching conveyor belt is located at the upper end of the stirring assembly, the input end of the discharge conveyor belt is located below the stirring assembly, the output end of the material hopper is provided with a first batching control valve, the output end of the batching hopper is provided with a second batching control valve, and the output end of the second recovery conveyor belt is arranged above the output end of the first batching conveyor belt.

[0009] -The material hopper-is provided with an openable hopper cover at the upper opening; a discharge port is provided at the lower side of the stirring assembly, and a discharge control valve is provided at the discharge port; a control room is provided on the ground of the transmission pit away from the hopper platform.

[0010] The drying device is provided with a drying cylinder, and the outer side of the drying cylinder and the outer side of the first cooling cylinder are provided with a jacket assembly, the jacket assembly includes an upper jacket and a lower jacket, and the inner side of the upper jacket and the inner side of the lower jacket are evenly provided with a plurality of partitions along the circumferential direction, and a recess is formed at the inner end of the partition, and a vibrating ball is provided between two adjacent partitions.

[0011] Both sides of the upper jacket and both sides of the lower jacket are provided with connecting plates, and both axial ends of the upper jacket and both axial ends of the lower jacket are provided with side end plates.

[0012] The drying cylinder, the first cooling cylinder and the second cooling cylinder are all provided with lifting plates along the circumferential direction. The heads of the lifting plates are bent, and the bending angles of the heads of the lifting plates in different rows are different.

[0013] A first partition wall group and a second partition wall group are symmetrically arranged in the ash storage room, and the first partition wall group and the second partition wall group each include a plurality of staggered partition walls, and a gap is left between the upper end of the partition wall and the top plate of the ash storage room, the upper end of one side of the ash storage room is connected to the first circulation pipeline, and the upper end of the other side is connected to the second circulation pipeline, and a dust removal pipeline is provided on the lower part of the rear wall of the ash storage room located between the first partition wall group and the second partition wall group.

[0014] The dust removal pipeline is connected to a dust removal fan arranged on the outside of the workshop wall. The dust removal fan is arranged on an installation base. A sedimentation water tank is arranged on the lower side of the installation base. A chimney is vertically arranged on the upper side of the installation base, and the lower end of the chimney is connected to the sedimentation water tank. The output pipeline of the dust removal fan extends into the sedimentation water tank and its opening is located below the water surface.

[0015] The input end of the dust removal fan is connected to a suction return pipeline, and the suction return pipeline extends into the sedimentation water tank at one end away from the dust removal fan, and the opening is located above the water surface.

[0016] The first induced draft hopper has a first induced draft fan at the upper end and a first output control valve at the lower end output port, and the second induced draft hopper has a second induced draft fan at the upper end and a second output control valve at the lower end output port.

[0017] The advantages and positive effects of the present invention are:

[0018] 1. The raw material batching system of the present invention utilizes a material hopper to store materials, utilizes the batching hopper to accurately discharge materials to meet the ratio requirements, and the materials output by each batching hopper are transmitted to the stirring assembly through the first batching conveyor belt and the second batching conveyor belt to complete the stirring and mixing. The whole process does not require manual participation, has a high degree of automation, can meet the continuous production requirements, and greatly improves the production efficiency.

[0019] 2. The present invention utilizes the first induced draft hopper, the second induced draft hopper and the ash storage room to separate and recycle fertilizer floating objects with smaller particles and lighter weight from dust, wherein the fertilizer floating objects with smaller particles and lighter weight and recyclable weight are suspended and rise through the circulation pipeline on the upper side of the ash storage room into the corresponding induced draft hopper for storage and reuse, and the heavier dust deposited on the floor of the ash storage room is discharged by the dust removal pipeline, thereby reducing the dust emission while also improving the utilization efficiency of the material.

[0020] 3. The input end of the dust removal fan of the present invention is connected to a suction pipe, which extends into the sedimentation tank and has an opening above the water surface. On the one hand, the suction pipe can circulate the dust floating on the water surface of the sedimentation tank into the dust removal fan and then enter the sedimentation tank again under the water surface, thereby ensuring to the maximum extent that the dust floating is dissolved in water and precipitated. On the other hand, the suction pipe can also form a certain degree of negative pressure in the sedimentation tank, so that the dust that is not soluble in water and has relatively large particles is stored in the sedimentation tank under the action of negative pressure and will not be discharged from the chimney to affect the environment, thereby ensuring sufficient dust removal, meeting national environmental protection requirements, and making the production workshop environment clean and tidy.

[0021] 4. The present invention utilizes the first cooling cylinder, the intermediate conveyor belt and the second cooling cylinder to form a long transmission channel, so that the material can exchange heat with room temperature air during long-distance transmission to achieve natural cooling, wherein the material in the first cooling cylinder is contacted with the air flow introduced into the first cooling cylinder by the induced draft fan for convection heat exchange, which can dissipate most of the heat, and then enters the second cooling cylinder through the intermediate conveyor belt to continue rotating and fully contact with the air to achieve natural cooling. Compared with the combination of water cooling and air cooling in the prior art, the present invention can reduce production costs on the one hand, without the need to set up devices such as spray water pipes, thereby saving water resources, and on the other hand, natural cooling of the material will not affect the quality of the material particles.

[0022] 5. The present invention utilizes the second induced draft hopper to guide room temperature air into the first cooling cylinder to flow upward and exchange heat with the material through convection. At the same time, it also takes away the dust generated when the material rotates in the first cooling cylinder. The dust removal effect is achieved while cooling. After the material is output from the first cooling cylinder, the particles are relatively clean.

[0023] 6. The present invention provides a jacket assembly with a vibrating ball inside on the outside of the drying cylinder and the first cooling cylinder, and the jacket assembly has a large coverage area, thereby greatly improving the vibration area of ​​the vibrating ball and the vibration stripping effect. In addition, the present invention provides a lifting plate in the drying cylinder, the first cooling cylinder and the second cooling cylinder. The material is spread more evenly under the action of the lifting plates at different angles, and can fully contact with the hot air for drying or the room temperature air for cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a top view of the present invention,

[0025] Figure 2 for Figure 1 The main view of the raw material batching system in

[0026] Figure 3 for Figure 2 AA view in

[0027] Figure 4 for Figure 2 A top view of the raw material batching system in Figure 1.

[0028] Figure 5 for Figure 1 The main view of the drying device in

[0029] Figure 6 for Figure 5 A cross-sectional view of the jacket assembly in FIG.

[0030] Figure 7 for Figure 6 The enlarged view of point C in the figure,

[0031] Figure 8 for Figure 5 Enlarged view of the jacket assembly in

[0032] Fig. 9 for Figure 5 Schematic diagram of the internal structure of the drying cylinder,

[0033] Fig.10 for Figure 1 Schematic diagram of the first induced draft hopper, ash storage room and second induced draft hopper,

[0034] Fig.11 for Fig.10 The three-dimensional schematic diagram of the first induced draft hopper in the figure,

[0035] Fig.12 for Fig.10 The three-dimensional schematic diagram of the second induced draft hopper in the figure,

[0036] Fig.13 for Fig.10 The ash storage room plane section view,

[0037] Fig.14 for Fig.10 In the BB view,

[0038] Fig.15 for Fig.14 Top view of the dust removal fan in the

[0039] Fig.16 for Figure 1 Schematic diagram of the cooling system in.

[0040] Among them, 1 is the raw material batching system, 101 is the hopper platform, 1011 is the platform guardrail, 1012 is the hopper cavity, 1013 is the loading slope, 102 is the material hopper, 1021 is the hopper cover, 1022 is the first batching control valve, 103 is the batching hopper, 1031 is the second batching control valve, 1032 is the hopper frame, 104 is the first batching conveyor belt, 105 is the conveying material pit, 1051 is the pit guardrail, 106 is the second batching conveyor belt, 107 is the stirring component, 1071 is the mixing component, is a stirring hopper, 1072 is a stirring drive device, 1073 is a transmission box, 1074 is a support frame, 1075 is a discharge control valve, 108 is a discharge conveyor belt, 109 is a feed conveyor belt, 110 is a control room, 2 is a first induced draft hopper, 3 is a drying output conveyor belt, 4 is an ash storage room, 401 is a first partition wall group, 402 is a second partition wall group, 403 is a dust removal pipeline, 5 is a first cooling cylinder, 501 is a cooling cylinder drive device, 502 is a cooling cylinder outer gear ring, 50 3 is the cooling cylinder support wheel, 504 is the cooling cylinder support wheel track, 505 is the cooling cylinder vibration rod, 6 is the second induced draft hopper, 7 is the second circulation pipeline, 8 is the first circulation pipeline, 9 is the first connecting pipeline, 10 is the dust removal fan, 11 is the output pipeline, 12 is the sedimentation tank, 13 is the back suction pipeline, 14 is the chimney, 15 is the intermediate conveyor belt, 16 is the second cooling cylinder, 17 is the first recovery conveyor belt, 18 is the second recovery conveyor belt, 19 is the drying device, and 191 is the drying cylinder body, 192 is an outer gear ring, 193 is a vibrating rod, 194 is a supporting roller track, 195 is a feeding port, 196 is an air inlet, 197 is a supporting roller, 198 is a driving device, 1981 is a gear, 20 is a cooling system, 21 is a granulator, 22 is a jacket assembly, 221 is a vibrating ball, 222 is a partition, 2221 is a recess, 223 is an upper jacket, 224 is a lower jacket, 225 is a connecting plate, 226 is a side end plate, 23 is a lifting plate, and 24 is a granulation output conveyor belt. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings.

[0042] like Figures 1 to 16As shown, the present invention includes a raw material batching system 1, a granulator 21, a drying device 19, a cooling system 20, an ash storage room 4, a first recovery conveyor belt 17 and a second recovery conveyor belt 18, wherein the raw material batching system 1 is provided with a discharge conveyor belt 108 connected to the granulator 21, the granulator 21 is connected to the input end of the drying device 19 through a granulation output conveyor belt 24, the cooling system 20 includes a first cooling cylinder 5, an intermediate conveyor belt 15 and a second cooling cylinder 16 connected in series in sequence, and the output end of the drying device 19 is connected to the input end of the first cooling cylinder 5 through a drying output conveyor belt 3, as shown in FIG. Fig.11 As shown, one side of the output end of the drying device 19 is connected to the ash storage room 4 through a first connecting pipeline 9, and the other side is provided with a first induced draft hopper 2, and the upper side of the ash storage room 4 is connected to the first induced draft hopper 2 through a first circulation pipeline 8, a first induced draft fan is provided in the spiral portion at the upper end of the first induced draft hopper 2, and a first output control valve is provided at the output port at the lower end of the first induced draft hopper 2, as shown in FIG. Figure 1 As shown, the input end of the first recovery conveyor belt 17 is arranged below the output port of the first induced draft hopper 2, and the output end is arranged above the discharge conveyor belt 108, as shown in FIG. Fig.12 As shown, one side of the input end of the first cooling cylinder 5 is connected to the ash storage room 4 through a second connecting pipeline, and the other side is provided with a second induced draft hopper 6, and the upper side of the ash storage room 4 is connected to the second induced draft hopper 6 through a second circulation pipeline 7, a second induced draft fan is provided in the spiral portion at the upper end of the second induced draft hopper 6, and a second output control valve is provided at the output port at the lower end of the second induced draft hopper 6, as shown in FIG. Figure 1 As shown, the input end of the second recovery conveyor belt 18 is arranged below the output port of the second induced draft hopper 6, and the output end is arranged in the raw material batching system 1. The granulator 21 is a well-known technology in the art and is a commercially available product.

[0043] like Figures 1 to 4 As shown, the raw material batching system 1 includes a hopper platform 101, a material hopper 102, a feed conveyor belt 109, a batching hopper 103, a first batching conveyor belt 104, a second batching conveyor belt 106 and a stirring assembly 107, wherein the hopper platform 101 is located on the upper side of the ground, and as shown in FIG. Figure 3As shown, the hopper platform 101 is provided with a plurality of hopper cavities 1012, each material hopper 102 is respectively arranged in a corresponding hopper cavity 1012, the input end of the feed conveyor 109 is located below the output end of the material hopper 102 in the corresponding hopper cavity 1012, the output end of the feed conveyor 109 is provided with a batching hopper 103, and the batching hopper 103 is located above the first batching conveyor 104, a conveying material pit 105 is provided under the ground, and the first batching conveyor 104 is located below the first batching conveyor 104. In the conveying pit 105, the height of the feeding conveyor belt 109 and the batching hopper 103 can be matched, the input end of the second batching conveyor belt 106 extends into the conveying pit 105 and is connected with the output end of the first batching conveyor belt 104, the output end of the second batching conveyor belt 106 is located at the upper end of the stirring assembly 107, the output end of the material hopper 102 is provided with a first batching control valve 1022, and the output end of the batching hopper 103 is provided with a second batching control valve 1031, as shown in FIG. Figure 1 As shown, the output end of the second recovery conveyor belt 18 is arranged above the output end of the first batching conveyor belt 104 .

[0044] When the raw material batching system 1 is working, various materials are placed in the corresponding material hoppers 102 respectively, and the first batching control valve 1022 controls the discharge amount of the material hopper 102 each time according to different proportions, and the discharge amount of the material hopper 102 each time is a rough discharge amount that is greater than the actual proportion amount. This is because the main purpose of the material hopper 102 is to store enough materials to ensure continuous production needs. It has a large volume and can accommodate more materials. As the materials are continuously output, their mass gravity changes greatly, and it is not suitable for direct and accurate batching. Each time the material hopper 102 outputs the material, it is sent to the corresponding batching hopper 103 through the feed conveyor belt 109. The second batching control valve 1031 at the lower end of the batching hopper 103 realizes accurate output according to the proportion amount to ensure the proportion accuracy. The materials output by each batching hopper 103 all fall on the first batching conveyor belt 104, and are transmitted to the stirring assembly 107 through the first batching conveyor belt 104 and the second batching conveyor belt 106 to achieve stirring and mixing. The first batching control valve 1022 and the second batching control valve 1031 are both well-known technologies in the art, and they can adopt mature commercially available products, or they can also adopt a feed control valve structure such as the one with authorization announcement number CN202115985U.

[0045] The hopper platform 101 is cast by concrete. Figure 4 As shown, loading slopes 1013 are provided on both sides of the hopper platform 101 to facilitate loading, and a platform guardrail 1011 is provided on the side of the hopper platform 101 close to the first batching conveyor belt 104 .

[0046] like Figure 3As shown, the upper opening of the material hopper 102 is provided with an openable hopper cover 1021. When replenishing materials, the first batching control valve 1022 is controlled to be closed. The staff stands on the hopper platform 101 and opens the hopper cover 1021 to pour the materials into the material hopper 102.

[0047] like Figure 3 As shown, a hopper frame 1032 for supporting the material hopper 103 is provided on the inner wall of the transmission pit 105 close to the hopper platform 101 , and a pit guardrail 1051 is provided on the ground on the side of the transmission pit 105 away from the hopper platform 101 .

[0048] like Figure 2 As shown, in this embodiment, the stirring assembly 107 includes a stirring hopper 1071, a stirring driving device 1072, a transmission box 1073 and a support frame 1074, wherein the transmission box 1073 is arranged on the support frame 1074, the stirring hopper 1071 and the stirring driving device 1072 are arranged on the upper side of the transmission box 1073, a stirring paddle is arranged in the stirring hopper 1071, and a transmission assembly is arranged in the transmission box 1073, and the stirring driving device 1072 transmits torque through the transmission assembly to drive the stirring paddle to rotate, thereby achieving material stirring and mixing. In this embodiment, the stirring driving device 1072 is a servo motor, and the transmission assembly is a sprocket chain transmission assembly, wherein the driving sprocket is installed on the output shaft of the servo motor, and the driven sprocket is arranged on the paddle shaft of the stirring paddle. The stirring assembly 107 is a well-known technology in the art.

[0049] like Figure 2 As shown, a discharge port is provided at the lower side of the transmission box 1073, and a discharge control valve 1075 is provided at the discharge port. The discharge control valve 1075 is closed during stirring, and when the material stirring reaches the set time, the discharge control valve 1075 is opened to output the stirred raw materials. A discharge conveyor belt 108 is provided at the lower side of the discharge port to send the stirred raw materials to the next process, and the system control ensures that the next batch of materials is input into the stirring hopper 1071 only after the raw materials of this batch are completely discharged. The discharge control valve 1075 has the same structure as the first batching control valve 1022 and the second batching control valve 1031.

[0050] The raw material batching system 1 can adjust the output parameters of the first batching control valve 1022 and the second batching control valve 1031 according to different raw material ratios, and can also adjust the transmission speeds of the feed conveyor 109, the first batching conveyor 104, and the second batching conveyor 106 according to production needs to ensure that the raw materials of the previous and next batches are not affected. For example, only when all the materials on the first batching conveyor 104 enter the second batching conveyor 106, each batching hopper 103 will unload materials again. Figures 2-3As shown, a control room 110 is provided on the ground at one side of the transmission pit 105 away from the hopper platform 101 . The control system is integrated in the control room 110 . The staff can observe the production situation in real time in the control room 110 and make timely adjustments.

[0051] The granulator 21 is a well-known technology in the art and is a commercially available product. Figure 5 As shown, the drying device 19 includes a drying cylinder 191 and a driving device 198, wherein the drying cylinder 191 is supported by a supporting roller 197 to achieve rotation, a supporting roller track 194 is provided on the drying cylinder 191 to abut against the corresponding supporting roller 197, an outer gear ring 192 is provided on the outer side of the middle part of the drying cylinder 191, a gear 1981 is provided on the output shaft of the driving device 198 to mesh with the outer gear ring 192, the driving device 198 transmits torque through the gear 1981 and the outer gear ring 192 to drive the drying cylinder 191 to rotate, the driving device 198 can adopt a reduction motor and other devices, a feed port 195 and an air inlet 196 are provided at the input end of the drying cylinder 191, the material enters the drying cylinder 191 from the feed port 195, and the hot air for drying enters the drying cylinder 191 from the air inlet 196 and fully contacts with the material to achieve drying, and the structure of the drying device 19 is a well-known technology in the art.

[0052] like Figure 5 As shown, the outer side of the drying cylinder 191 is provided with a jacket assembly 22, such as Figures 6 to 8 As shown, the jacket assembly 22 includes an upper jacket 223 and a lower jacket 224, and a plurality of baffles 222 are evenly arranged on the inner side of the upper jacket 223 and the inner side of the lower jacket 224 along the circumferential direction, and as shown in Figure 7 As shown, a notch 2221 is formed at the inner end of the partition 222, and a vibrating ball 221 is provided between two adjacent partitions 222. Connecting plates 225 are provided on both sides of the upper jacket 223 and the lower jacket 224, and the connecting plates 225 are fixedly connected by bolts and nuts, so that the upper jacket 223 and the lower jacket 224 are clamped and fixed on the drying cylinder 191 and rotate synchronously with the drying cylinder 191. Figure 6 As shown, when the vibration ball 221 rotates to the lower side B along with the drying cylinder 191, the vibration ball 221 falls on the inner wall of the jacket assembly 22, and gradually rolls into the recess 2221 at the inner end of the corresponding partition 222 as the drying cylinder 191 continues to rotate. When the vibration ball 221 rotates to the upper side A along with the drying cylinder 191, the vibration ball 221 rolls out of the recess 2221 and hits the outer wall of the drying cylinder 191 to achieve a vibration effect.

[0053] like Figure 6As shown, the jacket assembly 22 is designed as an upper jacket 223 and a lower jacket 224, which is convenient for installation and modification. Figure 5 As shown, when the drying cylinder 191 is a conventional cylinder, a conventional vibration rod 193 is provided on its outer wall. At this time, the jacket assembly 22 can adopt a short-distance structure and be installed on the drying cylinder 191 between adjacent vibration rods 193. There is no need to structurally modify the existing equipment, and the vibration rod 193 and the vibration ball 221 can jointly exert a vibration effect, and the jacket assembly 22 covers a large area of ​​the drying cylinder 191. At this time, the vibration ball 221 plays a role and can affect most of the drying cylinder 191 to achieve the vibration effect, instead of only being able to use the vibration rod 193 to affect the vibration of the surrounding local area as in the prior art, and the vibration effect is greatly improved.

[0054] like Figure 8 As shown, both axial ends of the upper jacket 223 and the lower jacket 224 are provided with side end plates 226 to limit the axial displacement of the vibrating balls 221. The vibrating balls 221 between any adjacent partitions 222 are arranged along the axial direction of the jacket assembly 22 and hit the outer wall of the drying cylinder 191 together, thereby greatly increasing the vibration area of ​​the drying cylinder 191.

[0055] like Fig. 9 As shown, the inner wall of the drying cylinder 191 is evenly provided with lifting plates 23 along the circumferential direction. The head of the lifting plate 23 is bent, and the bent heads of the lifting plates 23 in different rows can be designed to have different angles as needed, so that the material can be spread more evenly under the action of the lifting plates 23 at different angles, and can fully contact with the hot air input into the drying cylinder 191 when the drying cylinder 191 rotates, thereby greatly improving the drying effect.

[0056] like Fig.13 As shown, the ash storage room 4 is symmetrically provided with a first partition wall group 401 and a second partition wall group 402. The first partition wall group 401 and the second partition wall group 402 both include a plurality of partition walls arranged in an interlaced manner. Fig.14 As shown, there is a gap between the upper end of the partition wall and the top plate of the ash storage room 4, the upper end of one side of the ash storage room 4 is connected to the first circulation pipeline 8, and the upper end of the other side is connected to the second circulation pipeline 7, and the lower part of the middle rear wall of the ash storage room 4 located between the first partition wall group 401 and the second partition wall group 402 is provided with a dust removal pipeline 403.

[0057] like Fig.14As shown, the dust and moisture in the drying device 19 first enter one end of the ash storage room 4 through the first connecting pipeline 9 through the action of the first induced draft fan at the upper end of the first induced draft hopper 2, and the heavier dust part settles on the ground of the ash storage room 4, and the fertilizer floating objects with smaller particles (particle size above 200 mesh), lighter weight and recyclable weight rise and are output from the first circulation pipeline 8. The dust removal pipeline 403 is connected to the dust removal fan 10, and the dust on the ground is reciprocated along the various partition walls of the first partition wall group 401 by the action of the dust removal fan 10 and finally enters the dust removal pipeline 403. In the process of reciprocating movement of the dust, the fertilizer floating objects with smaller particles (particle size above 200 mesh), lighter weight and recyclable weight mixed in the dust are continuously separated and rise to the top of the ash storage room 4, and finally enter the first circulation pipeline 8.

[0058] The first cooling cylinder 5 is similar to the drying device 19. The second induced draft fan at the upper end of the second induced draft hopper 6 guides the room temperature air entering from the output end of the first cooling cylinder 5 to flow upward and achieve cooling effect by convection heat exchange with the material in the first cooling cylinder 5. At the same time, the dust and moisture generated in the first cooling cylinder 5 are guided to enter the other end of the ash storage room 4 through the second connecting pipeline. The heavier dust part settles on the ground of the ash storage room 4, and the smaller particles (particle size 150-160 mesh), lighter weight and recyclable fertilizer floating objects rise and are collected by the second circulating At the output of the loop pipeline 7, due to the induced draft dust removal effect at the output end of the drying device 19, the fertilizer floating matter generated in the first cooling cylinder 5 has a relatively large particle size, and the dust on the ground is reciprocated along the partition walls of the second partition wall group 402 by the action of the dust removal fan 10 and finally enters the dust removal pipeline 403. During the reciprocating movement of the dust, the fertilizer floating matter with smaller particles (particle size 150-160 mesh), lighter weight and recyclable mixed in the dust continuously detaches and rises to the top of the ash storage room 4, and finally enters the second circulation pipeline 7.

[0059] like Fig.13 As shown, the first circulation pipeline 8 mainly absorbs the fertilizer floating objects in the top gap of the first partition wall group 401 in the ash storage room 4, and the second circulation pipeline 7 mainly absorbs the fertilizer floating objects in the top gap of the second partition wall group 402 in the ash storage room 4.

[0060] The first output control valve at the lower end of the first induced draft hopper 2 and the second output control valve at the lower end of the second induced draft hopper 6 are both opened when the fertilizer floating objects in the corresponding induced draft hoppers accumulate to a set weight. At this time, the fertilizer floating objects are condensed by a small amount of moisture when accumulated, and on the other hand, they are heavy and fall directly on the recycling conveyor belt at a relatively close distance below. When outputting, the dusting effect that causes the floating objects to overflow is avoided to the greatest extent, ensuring the recycling efficiency. The first output control valve and the second output control valve are well-known technologies in the art, and mature commercial products can be used, or the unloading control valve structure with the authorization announcement number CN202115985U can also be used.

[0061] like Figure 1 As shown, the fertilizer floating material deposit particles output by the first induced draft hopper 2 are relatively fine (above 200 meshes), and can be directly transmitted to the discharge conveyor 108 of the raw material batching system 1 via the first recovery conveyor 17, and then enter the granulator 21. The fertilizer floating material deposit particles output by the second induced draft hopper 6 are relatively coarse (150-160 meshes), and can be transmitted to the first batching conveyor 104 of the raw material batching system 1 via the second recovery conveyor 18, and then sent to the stirring assembly 107 via the second batching conveyor 106.

[0062] like Fig.14 As shown, the dust removal pipeline 403 is connected to the dust removal fan 10 located outside the workshop wall. The dust removal fan 10 is installed on a mounting base. A sedimentation water tank 12 is provided on the lower side of the mounting base. A chimney 14 is vertically provided on the upper side of the mounting base, and the lower end of the chimney 14 is connected to the sedimentation water tank 12. The output pipeline 11 of the dust removal fan 10 extends into the sedimentation water tank 12 and the opening is located below the water surface. After the dust enters the sedimentation water tank 12, most of it dissolves in water and precipitates, and only a very small amount is discharged through the chimney 14, which will not affect the environment. In addition, Figures 14-15 As shown, the input end of the dust removal fan 10 is connected to a suction pipe 13, and the suction pipe 13 extends into the sedimentation tank 12 at one end away from the dust removal fan 10 and has an opening above the water surface. On the one hand, the suction pipe 13 can make the dust floating on the water surface of the sedimentation tank 12 circulate into the dust removal fan 10 and then enter the sedimentation tank 12 again under the water surface, thereby ensuring that the dust floating is dissolved in water and precipitated to the greatest extent. On the other hand, the suction pipe 13 can also form a certain degree of negative pressure in the sedimentation tank 12, so that the dust that is not soluble in water and has relatively large particles is stored in the sedimentation tank 12 under the action of negative pressure, and will not be discharged from the chimney 14 to affect the environment.

[0063] like Fig.16As shown, the cooling system 20 utilizes the first cooling cylinder 5, the intermediate conveyor belt 15 and the second cooling cylinder 16 to form a relatively long transmission channel, so that the material can be naturally cooled during the long-distance transmission process. After the material enters the first cooling cylinder 5 via the drying output conveyor belt 3, the first induced draft fan in the first induced draft hopper 2 guides the room temperature air entering from the output end of the first cooling cylinder 5 to flow upward and fully contact with the material for heat exchange, taking away most of the heat of the material. Then the material passes through the intermediate conveyor belt 15 and enters the second cooling cylinder 16 to continue rotating and fully contact with the air to achieve natural cooling.

[0064] like Fig.16 As shown, the first cooling cylinder 5 and the second cooling cylinder 16 have the same structure, and are both supported for rotation by cooling cylinder support wheels 503. The outer sides of the first cooling cylinder 5 and the second cooling cylinder 16 are both provided with cooling cylinder support wheels 504 to abut against the corresponding cooling cylinder support wheels 503 on the lower side. In addition, the outer sides of the first cooling cylinder 5 and the second cooling cylinder 16 are both provided with cooling cylinder outer gear rings 502. The lower sides of the first cooling cylinder 5 and the second cooling cylinder 16 are both provided with cooling cylinder driving devices 501, and the cooling cylinder driving devices 501 are provided with gears that mesh with the cooling cylinder outer gear rings 502 on the corresponding cooling cylinders. The structures of the first cooling cylinder 5 and the second cooling cylinder 16 are well known in the art.

[0065] like Fig.16 As shown, after the material is dried, it enters the first cooling cylinder 5. At this time, the material still has a certain viscosity and is easy to stick to the inner wall of the cooling cylinder. Therefore, in order to ensure the vibration dematerialing effect of the material in the first cooling cylinder 5, a jacket assembly 22 with an internal vibrating ball 221, which is the same as the drying cylinder 191, is also provided on the outside of the first cooling cylinder 5 to assist in vibration dematerialing.

[0066] In addition, material lifting plates 23 are evenly distributed along the circumferential direction on the inner wall of the first cooling cylinder 5 and the inner wall of the second cooling cylinder 16. The head of the material lifting plate 23 is bent, and the bent heads of different rows of material lifting plates 23 can be designed to have different angles as needed, so that the material can be spread more evenly under the action of the material lifting plates 23 at different angles, and can fully contact with the room temperature air input into the first cooling cylinder 5 or the second cooling cylinder 16 when the first cooling cylinder 5 or the second cooling cylinder 16 rotates, thereby accelerating the cooling effect.

[0067] Each conveyor belt in the present invention is a well-known technology in the art. In this embodiment, each conveyor belt has the same structure, with a driving roller at one end and a driven roller at the other end. The driving roller is driven to rotate by a motor, thereby driving the conveyor belt to move.

[0068] The working principle of the present invention is:

[0069] When the present invention is working, the raw materials are first prepared by the raw material batching system 1, and various materials are placed in the corresponding material hoppers 102. The microbial fertilizer includes inorganic substances, phosphorus, potassium, organic matter, medium elements, microorganisms, trace elements and other components. In this embodiment, a total of seven material hoppers 102 are provided to respectively hold the above materials. The first batching control valve 1022 at the lower end of the material hopper 102 controls the discharge amount each time according to different proportions, and the discharge amount of the material hopper 102 each time is a rough discharge amount greater than the actual proportion amount. The material outputted from the material hopper 102 each time is sent to the corresponding batching hopper 103 through the feed conveyor belt 109, and the second batching control valve 1031 at the lower end of the batching hopper 103 realizes accurate output according to the proportioning amount to ensure the proportioning accuracy. The materials outputted from each batching hopper 103 all fall on the first batching conveyor belt 104, and are transmitted to the stirring assembly 107 through the first batching conveyor belt 104 and the second batching conveyor belt 106 for stirring and mixing, and then are sent to the granulator 21 for granulation through the discharge conveyor belt 108.

[0070] The material particles output by the granulator 21 pass through the granulation output conveyor belt 24 and enter the drying device 19 for drying. The hot air enters the drying cylinder 191 through the air inlet 196 and moves downward under the action of the first induced draft fan at the upper end of the first induced draft hopper 2 to fully contact and dry the material. The dust and moisture in the drying device 19 pass through the first induced draft fan at the upper end of the first induced draft hopper 2 and first enter one end of the ash storage room 4 through the first connecting pipeline 9. The heavier dust part settles on the ground of the ash storage room 4, and the fertilizer floating objects with smaller particles (above 200 meshes), lighter weight and recyclable rise and are output from the first circulation pipeline 8 into the first induced draft hopper 2. The fertilizer floating accumulation particles output by the first induced draft hopper 2 are relatively fine (above 200 meshes), and can be directly transmitted to the discharge conveyor belt 108 in the raw material batching system 1 via the first recovery conveyor belt 17, and then re-enter the granulator 21. The material output by the drying device 19 enters the first cooling cylinder 5 of the cooling system 20 through the drying output conveyor belt 3. Similarly, the first cooling cylinder 5 guides the room temperature air entering from the output end of the first cooling cylinder 5 to flow upward through the second induced draft fan at the upper end of the second induced draft hopper 6, and achieves cooling effect through convection heat exchange with the material in the first cooling cylinder 5. At the same time, the dust and moisture generated in the first cooling cylinder 5 are guided to enter the other end of the ash storage room 4 through the second connecting pipeline. The heavier dust part settles on the ground of the ash storage room 4, and the fertilizer floating objects with smaller particles (particle size 150-160 mesh), lighter weight and recyclable rise and are output from the second circulation pipeline 7 into the second induced draft hopper 6. The fertilizer floating accumulation particles output by the second induced draft hopper 6 are relatively coarse (150-160 mesh), which can be transmitted to the first batching conveyor belt 104 of the raw material batching system 1 via the second recovery conveyor belt 18, and then enter the stirring assembly 107 for stirring and then input into the granulator 21 for granulation. The present invention recycles fertilizer floating objects with smaller particles and lighter weight, thereby reducing dust emission and improving material utilization efficiency.

[0071] In addition, a dust removal pipeline 403 is provided at the rear side of the ash storage room 4 of the present invention, which is connected to the dust removal fan 10 outside the workshop. A sedimentation water tank 12 is provided at the lower side of the dust removal fan 10. The output pipeline 11 of the dust removal fan 10 extends into the sedimentation water tank 12 and is located below the water surface. After the dust enters the sedimentation water tank 12, most of the dissolved water is precipitated, and only a very small amount is discharged through the chimney 14, which will not affect the environment. In addition, the input end of the dust removal fan 10 is connected to a back-inhalation pipeline 13, and the back-inhalation pipeline 13 extends into the sedimentation water tank 12 away from the end of the dust removal fan 10 and is open. Located above the water surface, the return pipe 13 can, on the one hand, allow the dust floating on the water surface of the sedimentation tank 12 to circulate into the dust removal fan 10 and then enter the sedimentation tank 12 again under the water surface, thereby ensuring to the greatest extent that the dust floating is dissolved in water and precipitated; on the other hand, the return pipe 13 can also form a certain degree of negative pressure in the sedimentation tank 12, so that the dust that is not soluble in water and has relatively large particles is stored in the sedimentation tank 12 under the effect of negative pressure, and will not be discharged from the chimney 14 to affect the environment, thereby ensuring sufficient dust removal, meeting national environmental protection requirements, and making the production workshop environment clean and tidy.

Claims

1. A microbial fertilizer production system, characterized in that: The invention comprises a raw material batching system (1), a granulator (21), a drying device (19), a cooling system (20), an ash storage room (4), a first recovery conveyor belt (17) and a second recovery conveyor belt (18), wherein the raw material batching system (1) is provided with a discharge conveyor belt (108) connected to the granulator (21), the granulator (21) is connected to the input end of the drying device (19) via a granulation output conveyor belt (24), the cooling system (20) comprises a first cooling cylinder (5), an intermediate conveyor belt (15) and a second cooling cylinder (16) connected in sequence, and the output end of the drying device (19) is connected to the input end of the first cooling cylinder (5) via a drying output conveyor belt (3), and one side of the output end of the drying device (19) is connected to the first cooling cylinder (5) via a first connecting pipeline (9) is connected to the ash storage room (4), a first induced draft hopper (2) is provided on the other side, and the upper side of the ash storage room (4) is connected to the first induced draft hopper (2) through a first circulation pipeline (8), the input end of the first recovery conveyor belt (17) is arranged below the output port of the first induced draft hopper (2), and the output end is arranged above the discharge conveyor belt (108), one side of the input end of the first cooling cylinder (5) is connected to the ash storage room (4) through a second connecting pipeline, and a second induced draft hopper (6) is provided on the other side, and the upper side of the ash storage room (4) is connected to the second induced draft hopper (6) through a second circulation pipeline (7), the input end of the second recovery conveyor belt (18) is arranged below the output port of the second induced draft hopper (6), and the output end is arranged in the raw material batching system (1); The raw material batching system (1) comprises a hopper platform (101), a material hopper (102), a feed conveyor belt (109), a batching hopper (103), a first batching conveyor belt (104), a second batching conveyor belt (106) and a stirring assembly (107), wherein the hopper platform (101) is located on the upper side of the ground, and a plurality of hopper cavities (1012) are arranged inside the hopper platform (101), and each material hopper (102) is arranged in a corresponding hopper cavity (1012), and the input end of the feed conveyor belt (109) is located below the output end of the material hopper (102) in the corresponding hopper cavity (1012), and the output end of the feed conveyor belt (109) is provided with a batching hopper (103), and the batching hopper (103) is located above the first batching conveyor belt (104). A material transfer pit (105) is provided under the ground, and the first batching conveyor belt (104) is located in the material transfer pit (105); an input end of a second batching conveyor belt (106) extends into the material transfer pit (105) and is connected to an output end of the first batching conveyor belt (104); an output end of the second batching conveyor belt (106) is located at an upper end of the stirring component (107); an input end of the discharge conveyor belt (108) is located below the stirring component (107); a first batching control valve (1022) is provided at an output end of the material hopper (102); a second batching control valve (1031) is provided at an output end of the batching hopper (103); and an output end of the second recovery conveyor belt (18) is provided above an output end of the first batching conveyor belt (104).

2. The microbial fertilizer production system according to claim 1, characterized in that: The upper opening of the material hopper (102) is provided with an openable hopper cover (1021); the lower side of the stirring assembly (107) is provided with a discharge port, and the discharge port is provided with a discharge control valve (1075); and a control room (110) is provided on the ground on a side of the transmission pit (105) away from the hopper platform (101).

3. The microbial fertilizer production system according to claim 1, characterized in that: The drying device (19) is provided with a drying cylinder (191), and the outer side of the drying cylinder (191) and the outer side of the first cooling cylinder (5) are provided with a jacket assembly (22), the jacket assembly (22) comprises an upper jacket (223) and a lower jacket (224), and the inner side of the upper jacket (223) and the inner side of the lower jacket (224) are evenly provided with a plurality of partitions (222) along the circumferential direction, and a notch (2221) is formed at the inner end of the partition (222), and a vibrating ball (221) is provided between two adjacent partitions (222).

4. The microbial fertilizer production system according to claim 3, characterized in that: Both sides of the upper jacket (223) and both sides of the lower jacket (224) are provided with connecting plates (225), and both axial ends of the upper jacket (223) and both axial ends of the lower jacket (224) are provided with side end plates (226).

5. The microbial fertilizer production system according to claim 4, characterized in that: The drying cylinder (191), the first cooling cylinder (5) and the second cooling cylinder (16) are all provided with lifting plates (23) along the circumferential direction. The heads of the lifting plates (23) are bent, and the bending angles of the heads of the lifting plates (23) in different rows are different.

6. The microbial fertilizer production system according to claim 1, characterized in that: The ash storage room (4) is symmetrically provided with a first partition wall group (401) and a second partition wall group (402). The first partition wall group (401) and the second partition wall group (402) both include a plurality of partition walls arranged in an alternating manner, and a gap is left between the upper ends of the partition walls and the top plate of the ash storage room (4). The upper end of one side of the ash storage room (4) is connected to the first circulation pipeline (8), and the upper end of the other side is connected to the second circulation pipeline (7). The lower part of the rear wall of the ash storage room (4) located between the first partition wall group (401) and the second partition wall group (402) is provided with a dust removal pipeline (403).

7. The microbial fertilizer production system according to claim 6, characterized in that: The dust removal pipeline (403) is connected to a dust removal fan (10) arranged on the outside of the workshop wall. The dust removal fan (10) is arranged on a mounting base. A sedimentation water tank (12) is arranged on the lower side of the mounting base. A chimney (14) is vertically arranged on the upper side of the mounting base, and the lower end of the chimney (14) is connected to the sedimentation water tank (12). The output pipeline (11) of the dust removal fan (10) extends into the sedimentation water tank (12) and its opening is located below the water surface.

8. The microbial fertilizer production system according to claim 7, characterized in that: The input end of the dust removal fan (10) is connected to a suction return pipeline (13), and the suction return pipeline (13) extends into the sedimentation water tank (12) at one end away from the dust removal fan (10) and has an opening located above the water surface.

9. The microbial fertilizer production system according to claim 1, characterized in that: The first induced draft hopper (2) has a first induced draft fan at its upper end and a first output control valve at its lower output port, and the second induced draft hopper (6) has a second induced draft fan at its upper end and a second output control valve at its lower output port.

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