Mixing device for organic fertilizer processing and mixing method thereof

Abstract

The invention discloses a mixing device for organic fertilizer processing and a mixing method thereof.The mixing device comprises a first support, a stirring mechanism used for stirring and mixing organic fertilizer is arranged at the upper end of the first support, and a second support is arranged on one side of the first support; a conveying mechanism used for conveying materials into the stirring mechanism is arranged at the upper end of the second support, a third support is arranged on the other side of the first support, and a ventilation mechanism used for adsorbing peculiar smell and preventing the peculiar smell from diffusing is arranged at the upper end of the third support. According to the mixing device, convective mixing is matched with stirring mixing, the mixing efficiency and uniformity can be remarkably improved, and the adaptability of equipment to complex organic fertilizer materials is enhanced.

Description

Technical Field

[0001] This invention relates to the field of fertilizer processing technology, specifically to a mixing device and mixing method for organic fertilizer processing. Background Technology

[0002] Organic fertilizer is derived from organic materials such as plant and animal remains or human and animal excrement, which are decomposed and fermented. Rich in various nutrients, it effectively improves soil structure and fertility, and is widely used in agricultural production. During the processing of organic fertilizer, various raw materials (such as livestock and poultry manure, straw powder, leaf mold, and microbial agents) need to be evenly mixed in a certain proportion. The mixing effect directly affects the nutrient balance and subsequent effectiveness of the organic fertilizer.

[0003] Currently, most organic fertilizer mixing devices on the market use a single mixing method, such as spiral mixing or paddle mixing. These devices have the following problems in practical use: First, the mixing uniformity is insufficient. Due to the significant differences in specific gravity and particle size among different raw materials, a single mixing method is insufficient to fully integrate light and heavy materials, easily leading to localized material aggregation. Second, the mixing efficiency is low. Traditional devices have a fixed mixing structure and a limited mixing range, requiring a long time to achieve the desired mixing effect, increasing processing costs. Third, the functionality is limited; they can only perform the mixing function and cannot effectively handle the moisture and odors generated during the mixing process, which can easily affect the factory environment and worker health.

[0004] Therefore, in order to address the above problems, there is an urgent need to design a mixing device and mixing method for organic fertilizer processing that has high mixing uniformity, high efficiency, comprehensive functions and precise feeding. Summary of the Invention

[0005] The purpose of this invention is to provide a mixing device and mixing method for organic fertilizer processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mixing device for organic fertilizer processing, comprising a first support, a stirring mechanism for mixing organic fertilizer is provided at the upper end of the first support, a second support is provided on one side of the first support, a conveying mechanism for conveying materials into the stirring mechanism is provided at the upper end of the second support, and a third support is provided on the other side of the first support, a ventilation mechanism for absorbing odors and preventing odor dispersion is provided at the upper end of the third support. The mixing device of the present invention discloses a combination of convective mixing and stirring, which can significantly improve mixing efficiency and uniformity, and enhance the adaptability of the equipment to complex organic fertilizer materials.

[0007] Preferably, the mixing mechanism includes a mixing chamber, a drive shaft, a first spiral transmission rod, a stirring rod, and an auger plate. The mixing chamber is located at the upper end of the first support. A drive shaft is movably mounted on the inner center of the mixing chamber via a bearing. A first spiral transmission rod is fixedly wound around the outer side of the rotating shaft. A plurality of stirring rods are uniformly fixed on the outer surface of the drive shaft. An auger plate is fixedly mounted at the end of each stirring rod away from the drive shaft. The first spiral transmission rod is sleeved inside the spirally arranged auger plate. The mixing mechanism facilitates the mixing of organic fertilizer materials. During mixing, this device can perform both convective mixing and agitation.

[0008] Preferably, a first motor is fixedly installed on one side of the surface of the mixing chamber. The power output shaft of the first motor is connected to the transmission shaft through a coupling. The first motor can be used as a power source to drive the rotating shaft, the first spiral transmission rod, the stirring rod, and the auger blade to rotate.

[0009] Preferably, the transmission mechanism includes a feed trough, a transmission pipe, a second spiral transmission rod, and a discharge port. The feed trough is fixedly installed on the upper end of the second support. The transmission pipe is fixedly installed on one side of the surface of the feed trough. The second spiral transmission rod is movably installed inside the transmission pipe through a bearing. The discharge port is fixedly installed on the upper end of the transmission pipe. The transmission pipe is interconnected with the interior of the mixing chamber through the discharge port. The transmission mechanism can transmit the fertilizer and additives that need to be mixed into the interior of the mixing chamber.

[0010] Preferably, a second motor is fixedly installed at the upper end of the transmission pipe. The power output shaft of the second motor is connected to the second spiral transmission rod through a coupling. The second motor can easily drive the second spiral transmission rod to rotate, thereby transmitting the material into the mixing chamber.

[0011] Preferably, a filter screen is fixedly installed at the upper end of the feed trough. The filter screen can prevent large material blocks from entering the device and prevent blockage.

[0012] Preferably, the ventilation mechanism includes a fan housing, a fan impeller, an air outlet, and a ventilation pipe. The fan housing is fixedly installed on one side of the upper end of the mixing chamber. The fan impeller is movably installed inside the fan housing via a rotating shaft. An air outlet is provided between the fan housing and the mixing chamber. A ventilation pipe is fixedly installed on one side of the surface of the fan housing. The ventilation mechanism can easily extract the gas inside the mixing chamber, thereby preventing the spread of odors.

[0013] Preferably, the ventilation mechanism further includes an odor filtering mechanism for filtering gas odors. The filtering mechanism includes a diversion chamber, a diversion pipe, and a wire mesh sleeve. The diversion chamber is fixedly installed at the end of the ventilation pipe away from the fan housing. Several diversion pipes are evenly fixedly installed at the lower end of the diversion chamber. A wire mesh sleeve is fitted on the outside of the diversion pipe. Activated carbon is filled between the wire mesh sleeve and the diversion pipe. The gas can be diverted into multiple wire mesh sleeves through the diversion chamber and diversion pipe in the odor filtering mechanism. Subsequently, the gas is adsorbed by the activated carbon inside the wire mesh sleeve, thereby achieving the function of filtering odors.

[0014] Preferably, a third motor is fixedly installed on the upper end of the fan casing. The power output shaft of the third motor is connected to the impeller for transmission. The third motor can easily drive the impeller to rotate, thereby playing the role of exhaust ventilation.

[0015] Preferably, a discharge valve is provided on one side of the lower end of the shell. The discharge valve can be used to conveniently discharge the mixed material inside the shell. During discharge, the auger blades can also rotate continuously, so that all the material can be transferred towards the discharge valve. At this time, as long as the discharge valve is opened, the mixing chamber can be gradually emptied.

[0016] A mixing method based on the above-mentioned mixing device includes the following steps:

[0017] S1. Material Preparation and Feeding: The various organic fertilizer raw materials to be mixed (such as wet-based livestock and poultry manure, straw powder, and leaf mold) and additives (such as microbial agents) are pre-treated to remove large impurities. After that, they are fed into the feeding device through the feeding trough. The filter screen at the top of the feeding trough further filters out the remaining large particles to prevent clogging of the transmission pipe. The second motor is started, which drives the second spiral transmission rod to rotate, conveying the material along the transmission pipe to the discharge port. The material falls into the mixing chamber through the discharge port. The feeding speed can be adjusted by controlling the speed of the second motor to achieve precise feeding.

[0018] S2. Co-mixing: Start the first motor, which drives the drive shaft to rotate. The drive shaft simultaneously drives the first spiral transmission rod, stirring rod, and auger blades to rotate. When the auger blades rotate, they transport the organic fertilizer material (especially large-volume, high-viscosity wet-based raw materials) in the mixing chamber towards the discharge valve. At the same time, the first spiral transmission rod rotates and transports the material away from the discharge valve, forming material convection and forcing the material to flow, preventing the material from settling at the bottom of the mixing chamber or adhering to the chamber wall. During the rotation of the stirring rod, the material is stirred in all directions, especially the fine-particle straw powder, microbial agents, and other additives are fully dispersed to ensure that all components are uniformly mixed.

[0019] S3. Odor Treatment: During the mixing process, the third motor is started, which drives the fan impeller to rotate at high speed. A negative pressure is formed inside the fan casing. The odor gas generated during the mixing process in the mixing chamber is drawn into the fan casing through the air outlet, and then enters the distribution chamber through the ventilation pipe. The distribution chamber evenly distributes the odor gas to multiple distribution pipes. The gas enters the inside of the wire mesh sleeve through the through holes in the wall of the distribution pipe, and comes into full contact with the activated carbon. The activated carbon adsorbs the odor molecules in the gas, and the filtered clean gas is discharged through the mesh of the wire mesh sleeve.

[0020] S4. Discharge: After mixing is complete (which can be determined by the preset mixing time or by sampling to test the mixing uniformity), open the discharge valve. The first motor continues to run, and the auger plate continuously conveys the mixed materials in the mixing chamber toward the discharge valve. The material is discharged through the discharge valve until the material in the mixing chamber is emptied. Then, turn off the first, second, and third motors to complete one mixing operation. Regularly disassemble the wire mesh sleeve and replace the saturated activated carbon inside to ensure the odor filtration effect.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The present invention has excellent mixing effect: the stirring mechanism realizes the synergistic effect of convection mixing and stirring mixing. The auger blades transport the organic fertilizer material towards the discharge valve, while the first spiral conveying rod transports the material away from the discharge valve, generating forced convection. It is good at handling large-volume, high-viscosity or easily agglomerated materials (such as wet-based organic fertilizer raw materials) and prevents material deposition or adhesion. At the same time, the stirring rod stirs and mixes, which has a better dispersion effect on fine particles and powdery materials (such as additives and microbial agents), ensuring uniform distribution of trace elements and significantly improving the mixing uniformity.

[0023] 2. The present invention has high mixing efficiency: convection mixing and stirring mixing are carried out simultaneously, which expands the mixing range and accelerates the flow and diffusion speed of materials. Compared with the traditional single stirring method, the ideal mixing effect can be achieved without long-term operation, effectively reducing processing costs.

[0024] 3. This invention has comprehensive functions: It is equipped with a ventilation mechanism and an odor filtration mechanism. A third motor drives the fan impeller to rotate, extracting odorous gas from the mixing chamber through the air outlet and sending it into the diversion chamber through the ventilation pipe. The diversion chamber divides the gas into multiple diversion pipes, and finally the odor is adsorbed and filtered by the activated carbon in the wire mesh sleeve, preventing the odor from spreading, improving the factory environment, and protecting the health of workers. A filter screen is set at the upper end of the feed trough of the transmission mechanism to prevent large material blocks from entering the device and causing blockage, thus improving the stability of feeding. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the overall structure of a mixing device for organic fertilizer processing according to the present invention;

[0026] Figure 2 This is a cross-sectional view of a mixing device for organic fertilizer processing according to the present invention;

[0027] Figure 3 This is a side view of a mixing device for organic fertilizer processing according to the present invention;

[0028] Figure 4 This is an overall structural view of the stirring rod in a mixing device for organic fertilizer processing according to the present invention;

[0029] Figure 5 This is an installation view of the diversion pipe in a mixing device for organic fertilizer processing according to the present invention;

[0030] Figure 6 This invention relates to a mixing device for organic fertilizer processing. Figure 2 A magnified view of point A in the middle.

[0031] In the diagram: 1. First support; 2. Stirring mechanism; 201. Mixing chamber; 202. Drive shaft; 203. First spiral transmission rod; 204. Stirring rod; 205. Screwdriver plate; 206. First motor; 3. Second support; 4. Transmission mechanism; 401. Feed trough; 402. Transmission pipe; 403. Second spiral transmission rod; 404. Discharge port; 405. Second motor; 406. Filter screen; 5. Third support; 6. Ventilation mechanism; 601. Fan housing; 602. Fan impeller; 603. Air outlet; 604. Ventilation pipe; 605. Diversion chamber; 606. Diversion pipe; 607. Wire mesh sleeve; 608. Third motor; 7. Discharge valve. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-6 The present invention provides a technical solution: a mixing device for organic fertilizer processing, including a first support 1, a mixing mechanism 2 for mixing organic fertilizer is provided on the upper end of the first support 1, a second support 3 is provided on one side of the first support 1, a conveying mechanism 4 for conveying materials into the mixing mechanism 2 is provided on the upper end of the second support 3, a third support 5 is provided on the other side of the first support 1, and a ventilation mechanism 6 for absorbing odors and preventing odor dispersion is provided on the upper end of the third support 5.

[0034] The mixing mechanism 2 includes a mixing chamber 201, a drive shaft 202, a first spiral transmission rod 203, a stirring rod 204, and an auger plate 205. The mixing chamber 201 is welded and fixed to the upper end of the first support 1. The drive shaft 202 is movably arranged in the middle of the inner side of the mixing chamber 201 through a bearing. The first spiral transmission rod 203 is fixedly wound around the outer side of the drive shaft 202. Several stirring rods 204 are uniformly welded and fixed to the outer surface of the drive shaft 202. An auger plate 205 is welded and fixed to the end of the stirring rod 204 away from the drive shaft 202. The first spiral transmission rod 203 is sleeved inside the spirally arranged auger plate 205. A first motor 206 is fixedly mounted on one side of the surface of the mixing chamber 201 by bolts. The power output shaft end of the first motor 206 is connected to the drive shaft 202 through a coupling. The first motor 206 can be a Y-series three-phase asynchronous motor to provide stable power for the rotation of the drive shaft 202.

[0035] The transmission mechanism 4 includes a feed trough 401, a transmission pipe 402, a second spiral transmission rod 403, and a discharge port 404. The feed trough 401 is welded and fixed to the upper end of the second support 3. The transmission pipe 402 is welded and fixed to one side of the surface of the feed trough 401. The second spiral transmission rod 403 is movably arranged inside the transmission pipe 402 through a bearing. The discharge port 404 is welded and fixed to the upper end of the transmission pipe 402. The transmission pipe 402 is interconnected with the interior of the mixing chamber 201 through the discharge port 404. A second motor 405 is bolted and fixed to the upper end of the transmission pipe 402. The power output shaft of the second motor 405 is connected to the second spiral transmission rod 403 through a coupling. The second motor 405 can be a three-phase asynchronous motor of the same model as the first motor 206. A filter screen 406 is fixed to the upper end of the feed trough 401 by a snap fastener. The aperture of the filter screen 406 can be selected according to the actual particle size of the raw material. Generally, a stainless steel filter screen with an aperture of 5-10mm is selected.

[0036] The ventilation mechanism 6 includes a fan housing 601, a fan impeller 602, an air outlet 603, a ventilation duct 604, and an odor filtering mechanism for filtering gas odors. The fan housing 601 is welded and fixed to one side of the upper end of the mixing chamber 201. The fan impeller 602 is movably mounted inside the fan housing 601 via a rotating shaft. An air outlet 603 is provided between the fan housing 601 and the mixing chamber 201. The ventilation duct 604 is welded and fixed to one side of the surface of the fan housing 601. The odor filtering mechanism includes a diversion chamber 605, a diversion duct 606, and a wire mesh sleeve 607. The ventilation duct 604 is located away from the fan housing 601. A diversion chamber 605 is welded and fixed at one end. Several diversion pipes 606 are evenly welded and fixed at the lower end of the diversion chamber 605. A wire mesh sleeve 607 is sleeved on the outside of the diversion pipe 606. The wire mesh sleeve 607 and the diversion pipe 606 are fixed by threaded connection. Activated carbon is filled between the inside of the wire mesh sleeve 607 and the diversion pipe 606. A third motor 608 is fixed to the upper end of the fan housing 601 by bolts. The power output shaft of the third motor 608 is connected to the impeller. The third motor 608 can be a small high-speed motor to ensure that the fan impeller 602 generates sufficient suction force.

[0037] A discharge valve 7 is fixedly installed on one side of the lower end of the mixing chamber 201 via a flange. The discharge valve 7 is a manual gate valve, which is easy to operate and has good sealing performance.

[0038] The present invention also discloses a mixing method based on the above-described mixing device, comprising the following steps:

[0039] S1. Material Preparation and Feeding: The various organic fertilizer raw materials to be mixed (such as wet-based livestock and poultry manure, straw powder, and leaf mold) and additives (such as microbial agents) are pre-treated to remove large impurities. After that, they are fed into the device through the feeding trough 401. The filter screen 406 at the upper end of the feeding trough 401 further filters the remaining large particles to prevent clogging of the transmission pipe 402. The second motor 405 is started, which drives the second spiral transmission rod 403 to rotate, conveying the material along the transmission pipe 402 to the discharge port 404. The material falls into the mixing chamber 201 through the discharge port 404. The feeding speed can be adjusted by controlling the speed of the second motor 405 to achieve precise feeding.

[0040] S2. Co-mixing: Start the first motor 206, which drives the transmission shaft 202 to rotate. The transmission shaft 202 simultaneously drives the first spiral transmission rod 203, the stirring rod 204, and the auger plate 205 to rotate. When the auger plate 205 rotates, it transports the organic fertilizer material (especially large-volume, high-viscosity wet-based raw materials) in the mixing chamber 201 toward the discharge valve 7. At the same time, the first spiral transmission rod 203 rotates and transports the material away from the discharge valve 7, forming material convection and forcing the material to flow, preventing the material from settling at the bottom of the mixing chamber 201 or adhering to the chamber wall. During the rotation of the stirring rod 204, the material is stirred in all directions, especially the fine-particle straw powder, microbial agents, and other additives are fully dispersed to ensure that all components are mixed evenly.

[0041] S3. Odor Treatment: During the mixing process, the third motor 608 is started, which drives the fan impeller 602 to rotate at high speed. A negative pressure is formed inside the fan housing 601. The odor gas generated during the mixing process in the mixing chamber 201 is drawn into the fan housing 601 through the air outlet 603, and then enters the diversion chamber 605 through the ventilation pipe 604. The diversion chamber 605 evenly distributes the odor gas to multiple diversion pipes 606. The gas enters the inside of the wire mesh sleeve 607 through the through holes in the wall of the diversion pipe, and comes into full contact with the activated carbon. The activated carbon adsorbs the odor molecules in the gas, and the filtered clean gas is discharged through the mesh of the wire mesh sleeve 607.

[0042] S4. Discharge: After mixing is completed (which can be determined according to the preset mixing time or by sampling to test the mixing uniformity), open the discharge valve 7. The first motor 206 continues to run, and the auger plate 205 continuously conveys the mixed material in the mixing chamber 201 toward the discharge valve 7. The material is discharged through the discharge valve 7 until the material in the mixing chamber 201 is emptied. Then, turn off the first motor 206, the second motor 405 and the third motor 608 to complete one mixing operation. Periodically disassemble the wire mesh sleeve 607 and replace the internal saturated activated carbon to ensure the odor filtration effect.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing device for processing organic fertilizer, comprising a first support (1), characterized in that: The first support (1) is provided with a stirring mechanism (2) for stirring and mixing organic fertilizer at the upper end, the first support (1) is provided with a second support (3) on one side, the second support (3) is provided with a conveying mechanism (4) for conveying materials into the stirring mechanism (2) at the upper end, the other side of the first support (1) is provided with a third support (5), and the third support (5) is provided with a ventilation mechanism (6) for adsorbing odor and preventing odor from being dispersed at the upper end.

2. The mixing device for organic fertilizer processing according to claim 1, characterized in that: The stirring mechanism (2) comprises a mixing bin (201), a transmission shaft (202), a first spiral conveying rod (203), a stirring rod (204), and an auger piece (205), the first support (1) is provided with the mixing bin (201) at the upper end, the transmission shaft (202) is movably arranged on the inner side of the mixing bin (201) through a bearing, the first spiral conveying rod (203) is fixedly wound on the outer side of the transmission shaft, a plurality of stirring rods (204) are uniformly fixed on the outer surface of the transmission shaft (202), the auger piece (205) is fixedly arranged on the end of the stirring rod (204) away from the transmission shaft (202), and the first spiral conveying rod (203) is arranged in the auger piece (205) in a spiral manner.

3. The mixing device for organic fertilizer processing according to claim 2, characterized in that: A first motor (206) is fixedly arranged on one side of the surface of the mixing bin (201), and the power output shaft end of the first motor (206) is in transmission connection with the transmission shaft (202) through a shaft coupling.

4. The mixing device for organic fertilizer processing according to claim 1, characterized in that: The conveying mechanism (4) comprises a feeding groove (401), a conveying pipe (402), a second spiral conveying rod (403), and a discharge port (404), the second support (3) is fixedly provided with the feeding groove (401) at the upper end, the conveying pipe (402) is fixedly arranged on one side of the surface of the feeding groove (401), the second spiral conveying rod (403) is movably arranged in the conveying pipe (402) through a bearing, the discharge port (404) is fixedly arranged on the upper end of the conveying pipe (402), and the conveying pipe (402) is in intercommunication with the inside of the mixing bin (201) through the discharge port (404).

5. The mixing device for organic fertilizer processing according to claim 4, characterized in that: A second motor (405) is fixedly arranged on the upper end of the conveying pipe (402), and the power output shaft end of the second motor (405) is in transmission connection with the second spiral conveying rod (403) through a shaft coupling.

6. The mixing device for organic fertilizer processing according to claim 4, characterized in that: A filter screen (406) is fixedly arranged on the upper end of the feeding groove (401).

7. The mixing device for organic fertilizer processing according to claim 2, characterized in that: The ventilation mechanism (6) comprises a fan housing (601), a fan impeller (602), an air outlet (603), and a ventilation pipe (604), the mixing bin (201) is fixedly provided with the fan housing (601) on one side at the upper end, the fan impeller (602) is movably arranged in the fan housing (601) through a rotating shaft, the air outlet (603) is arranged between the fan housing (601) and the mixing bin (201), and the ventilation pipe (604) is fixedly arranged on one side of the surface of the fan housing (601).

8. The mixing device for organic fertilizer processing according to claim 7, characterized in that: The ventilation mechanism (6) further comprises an odor filtering mechanism for filtering odor of gas, the filtering mechanism comprising a shunt bin (605), a shunt pipe (606) and a steel wire mesh sleeve (607), the ventilation pipe (604) being fixedly provided with the shunt bin (605) at an end away from the fan housing (601), the shunt bin (605) being uniformly fixedly provided with a plurality of shunt pipes (606) at lower ends thereof, the shunt pipes (606) being sleeved with the steel wire mesh sleeve (607), and the steel wire mesh sleeve (607) being filled with activated carbon between the inside thereof and the shunt pipes (606).

9. The mixing device for organic fertilizer processing according to claim 7, characterized in that: The fan housing (601) is fixedly provided with a third motor (608) at an upper end thereof, and a power output shaft end of the third motor (608) is in transmission connection with the impeller.

10. The method of using a mixing device for processing organic fertilizer according to claims 1-9, characterized in that: The method comprises the following steps: S1, material preparation and feeding: the various organic fertilizer raw materials and additives to be mixed are pretreated respectively, after removal of large impurities, the pretreated materials are fed into the device through the feeding groove (401), the filter screen (406) at the upper end of the feeding groove (401) further filters the residual large-particle materials to prevent the transmission pipe (402) from being blocked; the second motor (405) is started, and the second motor (405) drives the second spiral transmission rod (403) to rotate, so that the materials are transported along the transmission pipe (402) to the discharge port (404), and the materials fall into the mixing bin (201) through the discharge port (404); the rotation speed of the second motor (405) can be controlled to adjust the feeding speed, so that precise feeding is realized. S2, synergistic mixing: the first motor (206) is started, the first motor (206) drives the transmission shaft (202) to rotate, and the transmission shaft (202) synchronously drives the first spiral transmission rod (203), the stirring rod (204) and the auger blade (205) to rotate; the auger blade (205) rotates to transport the organic fertilizer materials in the mixing bin (201) to the direction of the discharge valve (7), and the first spiral transmission rod (203) rotates to transport the materials to the direction away from the discharge valve (7), so that the materials are counter-currently transported, the materials are forced to flow, and the materials are prevented from being deposited at the bottom of the mixing bin (201) or adhered to the wall of the mixing bin (201); the stirring rod (204) rotates to stir the materials in all directions, and in particular, the fine-particle straw powder, microbial agent and other additives are fully dispersed, so that the components are uniformly mixed. S3, odor treatment: during the mixing process, the third motor (608) is started, the third motor (608) drives the fan impeller (602) to rotate at a high speed, a negative pressure is formed in the fan housing (601), and the odor gas generated in the mixing process in the mixing bin (201) is sucked into the fan housing (601) through the air outlet (603), and then enters the shunt bin (605) through the ventilation pipe (604); the shunt bin (605) uniformly shunts the odor gas to the plurality of shunt pipes (606), the gas enters the inside of the steel wire mesh sleeve (607) through the through holes in the pipe wall of the shunt pipe (606), fully contacts the activated carbon, the activated carbon adsorbs the odor molecules in the gas, and the filtered clean gas is discharged through the mesh holes of the steel wire mesh sleeve (607). S4, discharging: when the mixing is completed, open the discharge valve (7), the first motor (206) remains running, the auger blade (205) continuously transmits the mixed material in the mixing bin (201) to the discharge valve (7) direction, the material is discharged through the discharge valve (7) device, until the mixed material in the mixing bin (201) is empty, the first motor (206), the second motor (405) and the third motor (608) are closed, and the mixing operation is completed; the steel wire mesh sleeve (607) is disassembled regularly, and the internal adsorbed saturated activated carbon is replaced, so that the peculiar smell filtering effect is ensured.

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