Rice special-purpose fertilizer, processing technology and device

Abstract

The application relates to the technical field of compound fertilizer production, and discloses a special fertilizer for rice, a processing technology and a device, wherein the powder mixer comprises a machine body, a spiral stirrer is rotationally arranged in the machine body, a motor for driving the spiral stirrer is installed on the outer side of the machine body, a movable stirring ring is arranged on the side of the spiral stirrer, the conveying direction of the movable stirring ring is opposite to or the same as that of the spiral stirrer, and a limiting rod or a locking piece is arranged between the spiral stirrer and the movable stirring ring; the powder is poured into the machine body, the motor drives the movable stirring ring and the spiral stirrer to rotate at the same time to stir the powder in the machine body, the limiting rod is removed after the powder is mixed, the movable stirring ring is pushed towards the spiral stirrer, the movable stirring ring is fixed through the locking piece, the baffle is opened, and the motor drives the movable stirring ring and the spiral stirrer to rotate at the same time to output the powder, so that the powder with large viscosity can be quickly and conveniently output, and the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compound fertilizer production, in particular to a special fertilizer for rice, a processing technology and device. BACKGROUND

[0002] Compound fertilizer is a kind of fertilizer composed of multiple nutrient components, usually composed of nitrogen, phosphorus, potassium and other elements, which can provide multiple nutrient elements required by plants to promote plant growth and development, improve crop yield and quality, and is usually mixed with multiple nutrient elements in a certain proportion, then processed and made into granular or powdery fertilizer, which can be selected according to the needs of different crops and the characteristics of the soil, compared with traditional single-element fertilizer, compound fertilizer has the advantages of balanced nutrient composition, convenient application, improved crop yield and quality, reduced fertilization frequency and wide application range.

[0003] In the production of compound fertilizer, the powder mixer is a commonly used equipment for mixing powders of multiple different nutrient elements to produce granular or powdery compound fertilizer, which is usually composed of a mixing barrel, a stirrer, a motor, a speed reducer and a transmission shaft, etc., when using the powder mixer for compound fertilizer production, the powders of various nutrient elements need to be fed into the mixing equipment in a certain proportion, and then granulated after uniform mixing. However, the existing mixing machine usually uses a spiral stirrer to mix the powders of compound fertilizer, which has some limitations when dealing with materials with high viscosity. For example, when sodium silicate is added to the material, the viscosity of sodium silicate increases after it comes into contact with water, which often cannot be smoothly output from the stirrer, and manual intervention is required, which greatly reduces the production efficiency, in addition, uneven mixing can cause large fluctuations in the content of silicon element. SUMMARY

[0004] The present application provides a special fertilizer for rice, a processing technology and device, which has the beneficial effects of solving the problem that the existing mixing and stirring machine cannot smoothly output the material with high viscosity from the stirrer, which requires manual intervention, which greatly reduces the production efficiency, and can also solve the problem of uneven mixing.

[0005] The present application provides the following technical solutions:

[0006] A special fertilizer for rice, comprising the following components in parts by weight: urea 25-45 parts, ammonium chloride 1-20 parts, monoammonium phosphate 10-30 parts, potassium chloride 10-40 parts, rice synergistic technology package 1-4 parts, bar soil 1-10 parts, 98 sulfuric acid 1-2 parts, synthetic ammonia 1-2 parts, anti-caking agent 0.3-1 part;

[0007] The nitrogen, phosphorus and potassium effective component content is: N 15-25 parts, P2O5 6-15 parts, K2O 15-25 parts, the rice synergistic technology package is composed of sodium silicate 50 parts, zinc sulfate 25 parts and borax 25 parts;

[0008] As preferred, the processing technology of the rice special fertilizer is characterized by comprising the following steps:

[0009] Step one: fully mix sodium silicate, zinc sulfate and borax into a rice synergistic technology package according to the proportion, and wait for use;

[0010] Step two: mix the solid raw materials urea, ammonium chloride, monoammonium phosphate, potassium chloride, the rice synergistic technology package and bar soil into the powder mixer equipment for full mixing, and then pass through the elevator to the granulating kiln, add sulfuric acid and synthetic ammonia for granulation to obtain coarse particles;

[0011] Step three: after the coarse particles in step two are screened, dried and cooled, they are put into the coating kiln for coating, and then are divided into batches to obtain the rice special fertilizer.

[0012] As preferred, the powder mixer of the processing technology of the rice special fertilizer comprises a machine body, a mixing cavity is arranged on the inner side of the machine body, a spiral agitator is rotatably arranged in the mixing cavity, a motor is installed on the outer side of the machine body, the output shaft of the motor is in transmission connection with the spiral agitator, movable stirring rings are arranged on the side of the spiral agitator, the number of the movable stirring rings is several, when the movable stirring rings are away from the spiral agitator, a limiting rod is arranged between the spiral agitator and the adjacent movable stirring ring, the transmission directions of the movable stirring ring and the spiral agitator are opposite, when the movable stirring rings are close to the spiral agitator, locking pieces are jointly inserted between the spiral agitator and the adjacent movable stirring ring, and the transmission directions of the movable stirring ring and the spiral agitator are the same, and a baffle is hingedly connected to the side of the machine body.

[0013] As an optional solution of the powder mixer of the processing technology of the rice special fertilizer, a support plate is installed on the outer side of the machine body, support legs are installed on the outer side of the support plate, and the number of the support legs is several.

[0014] As an optional solution of the powder mixer for the production of composite fertilizer, the bottom of the mixing cavity is arranged in an arc shape, and the arc-shaped bottom of the mixing cavity is used in cooperation with the spiral agitator.

[0015] As a kind of powder mixing machine of the processing technology of rice special fertilizer described in the application Optional scheme, wherein: the support frame is arranged in the mixing cavity, the both ends of the support frame are connected with the inner wall of the machine body, the inside of the machine body and the support frame is equipped with bearing, the shaft is arranged between the bearing, the both ends of the shaft are inserted in the bearing, the shaft penetrates the spiral agitator, the fixed rod is installed on the outside of the shaft, the number of the fixed rod is set to several, and the other end of the fixed rod is connected with the spiral agitator, the motor is installed on the outside of the support plate, the output shaft of the motor is inserted in the side of the machine body, and the output shaft of the motor is connected with the end of the shaft by key.

[0016] As a kind of powder mixing machine of the processing technology of rice special fertilizer described in the application Optional scheme, wherein: the movable stirring ring is arranged between the adjacent screw rings of the spiral agitator, and the movable stirring ring is riveted on the side of the spiral agitator, the side of the movable stirring ring is jointly inserted with the connecting rod, the connecting rod is installed with the limiting block on the side, the number of the limiting block is the same as the number of the movable stirring ring, and the limiting block is respectively inserted into the inside of the movable stirring ring.

[0017] As a kind of powder mixing machine of the processing technology of rice special fertilizer described in the application Optional scheme, wherein: the limiting rod is installed with the connecting plate on the both ends, the connecting plate is inserted with the connecting bolt on the side, the number of the connecting bolt is set to several, the connecting bolt is respectively screwed on the side of the movable stirring ring and the spiral agitator, the conveying direction of the movable stirring ring is left, and the conveying direction of the spiral agitator is right.

[0018] As a kind of powder mixing machine of the processing technology of rice special fertilizer described in the application Optional scheme, wherein: the locking member includes locking bolt and locking nut, the locking bolt is inserted in the side of the movable stirring ring and the spiral agitator, and the locking nut is screwed on the end of the locking bolt, the conveying direction of the movable stirring ring and the conveying direction of the spiral agitator are both right.

[0019] As a kind of powder mixing machine of the processing technology of rice special fertilizer described in the application Optional scheme, wherein: the support plate is installed with the mounting bracket on the outside, the mounting bracket is installed with the telescopic part on the outside, the telescopic part is set as electric lifting rod, the end of the telescopic part is inserted in the side of the machine body, the telescopic end of the telescopic part is set in the mixing cavity, and the telescopic end of the telescopic part is close to the movable stirring ring.

[0020] As a powder mixing machine of a rice special fertilizer processing process, wherein: the baffle side is provided with a sealing strip, the number of sealing strips is set to several, the sealing strips are all set to rubber strips, the baffle side is connected with a guide plate, the number of guide plates is set to two, and the two guide plates are symmetrically arranged on the left and right sides of the baffle, the machine body outside is provided with buckles, the number of buckles is set to several, the buckles all include buckle part A and buckle part B, the buckle part A is connected with the machine body, the buckle part B is connected with the guide plate, and the buckle part A is respectively connected with the buckle part B.

[0021] The working principle of the powder mixing machine of the rice special fertilizer processing process includes the following specific steps:

[0022] S1. Powder mixing: various powders used for compound fertilizer production are added to the mixing cavity of the powder mixing machine body according to a certain proportion, and the screw stirrer and the movable stirring ring rotating in opposite directions are rotated at the same time to mix the various powders uniformly;

[0023] S2. Adjust the transmission direction of the movable stirring ring: push the movable stirring ring to the right, so that the transmission directions of the movable stirring ring and the screw stirrer are the same;

[0024] S3. Output powder: open the baffle, and the screw stirrer and the movable stirring ring rotating in the same direction are rotated at the same time to convey the mixed powder with large viscosity out of the machine body.

[0025] The application has the following advantages:

[0026] 1. The powder mixing machine and process for compound fertilizer production, the machine body is placed on the ground, the movable stirring ring and the screw stirrer are in the first state, various powders required for compound fertilizer production are poured into the mixing cavity, the motor is provided, the motor drives the movable stirring ring and the screw stirrer to rotate at the same time, and the powders in the mixing cavity are stirred and mixed, after the powder mixing is completed, the limiting rod is removed, the movable stirring ring is pushed to be close to the screw stirrer, and the movable stirring ring and the screw stirrer are fixed by the locking piece, so that the movable stirring ring and the screw stirrer change from the first state to the second state, the baffle is opened, and the movable stirring ring and the screw stirrer are driven to rotate at the same time by the motor, the mixed powder with large viscosity in the mixing cavity is discharged from the machine body, so that the mixed powder can be quickly and conveniently output for the next granulation work.

[0027] 2、The powder mixing machine for compound fertilizer production and process thereof, through the cooperation of connecting rods and limiting blocks, multiple movable stirring rings are connected into a whole, so that when the telescopic part pushes a movable stirring ring, multiple movable stirring rings can be simultaneously and angularly rotated through the transmission of connecting rods and limiting blocks, multiple movable stirring rings are conveniently pushed at the same time, and the convenience of the device is further improved.

[0028] 3、The powder mixing machine for compound fertilizer production and process thereof, through the cooperation of connecting rods and limiting blocks, multiple movable stirring rings are connected into a whole, so that when the telescopic part pushes a movable stirring ring, multiple movable stirring rings can be simultaneously and angularly rotated through the transmission of connecting rods and limiting blocks, multiple movable stirring rings are conveniently pushed at the same time, and the convenience of the device is further improved. BRIEF DESCRIPTION OF DRAWINGS

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

[0030] Figure 2 It is a three-dimensional structure schematic diagram of the present application.

[0031] Figure 3 It is a three-dimensional structure schematic diagram of the present application.

[0032] Figure 4 It is a three-dimensional structure schematic diagram of the present application.

[0033] Figure 5 It is a three-dimensional structure schematic diagram of the present application.

[0034] Figure 6 It is a three-dimensional structure schematic diagram of the present application.

[0035] Figure 7 It is a three-dimensional structure schematic diagram of the present application.

[0036] Figure 8 It is a three-dimensional structure schematic diagram of the present application.

[0037] Figure 9 It is a three-dimensional structure schematic diagram of the present application.

[0038] In the figure: 110, body; 111, support plate; 112, support leg; 120, mixing cavity; 130, spiral stirrer; 131, support frame; 132, bearing; 133, rotating shaft; 134, fixed rod; 140, motor; 150, movable stirring ring; 151, connecting rod; 152, limiting block; 160, limiting rod; 161, connecting sheet; 162, connecting bolt; 170, locking piece; 171, locking bolt; 172, locking nut; 173, mounting frame; 174, telescopic piece; 180, baffle; 181, sealing strip; 182, guide plate; 183, buckle; 184, buckle part A; 185, buckle part B. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0040] Embodiment 1

[0041] A special fertilizer for rice, comprising the following components in parts by weight: urea 33.5 parts, ammonium chloride 5 parts, monoammonium phosphate 17 parts, potassium chloride 32 parts, rice synergistic technology package 2.5 parts, bar soil 7.5 parts, 98 sulfuric acid 1 part, synthetic ammonia 1 part, anti-caking agent 0.5 part;

[0042] Among them, the effective ingredient content of nitrogen, phosphorus and potassium is: N 19 parts, P2O5 8 parts, K2O 19 parts, and the rice synergistic technology package is composed of sodium silicate 50 parts, zinc sulfate 25 parts and borax 25 parts;

[0043] It should be noted that the preparation method of the anti-caking agent is referred to the preparation of the anti-caking agent in the company's granted patent application No. ZL201711105840.4.

[0044] The processing technology of the above-mentioned special fertilizer for rice comprises the following steps:

[0045] Step one: fully mix sodium silicate, zinc sulfate and borax into a rice synergistic technology package according to the proportion, and wait for use;

[0046] Step two: mix the solid raw materials urea, ammonium chloride, monoammonium phosphate, potassium chloride, rice synergistic technology package and bar soil into the powder mixer equipment for sufficient mixing, and then add sulfuric acid and synthetic ammonia into the granulator through the elevator to obtain coarse particles;

[0047] Step three: the step two coarse particles are screened, dried, and cooled, and then enter the coating kiln for coating, and after packaging, the rice special fertilizer 19-8-19 is obtained.

[0048] Example 2

[0049] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 9 , a kind of powder mixing machine of rice special fertilizer processing technology, including body 110, support plate 111 is fixedly installed at the bottom of body 110, support leg 112 is installed at the lower side of support plate 111, the number of support leg 112 is set to four, to facilitate the device is placed on ground, mixing cavity 120 is arranged in the inner side of body 110, the upper end of mixing cavity 120 is set to open type, spiral agitator 130 is rotatably arranged in mixing cavity 120, the bottom of mixing cavity 120 is set to arc, and the arc of the bottom of mixing cavity 120 and spiral agitator 130 are used in cooperation.

[0050] Motor 140 is installed on the outer side of body 110, the output shaft of motor 140 is in transmission connection with spiral agitator 130, support frame 131 is arranged in mixing cavity 120, the left and right ends of support frame 131 are fixedly connected with the inner wall of body 110, bearing 132 is installed in body 110 and support frame 131 with interference, shaft 133 is arranged between the two bearings 132, the two ends of shaft 133 are inserted into the two bearings 132 with interference, shaft 133 penetrates spiral agitator 130 from the hollow part of spiral agitator 130, fixed rod 134 is fixedly installed on the outer side of shaft 133, the number of fixed rod 134 is set to several, and the other end of fixed rod 134 is fixedly connected with spiral agitator 130, for fixing spiral agitator 130 on the outer side of shaft 133, motor 140 is fixedly installed on the upper side of support plate 111, the output shaft of motor 140 is inserted into the side of body 110, and the output shaft of motor 140 is in key connection with the end of shaft 133.

[0051] The spiral agitator 130 is provided with movable stirring rings 150 on the side, and the number of movable stirring rings 150 is set to be several, and the several movable stirring rings 150 are uniformly arranged transversely, when the movable stirring rings 150 are away from the spiral agitator 130, a limiting rod 160 is arranged between the spiral agitator 130 and the adjacent movable stirring ring 150, and the transmission direction of the movable stirring ring 150 is opposite to that of the spiral agitator 130, the limiting rod 160 is fixedly installed with connecting plates 161 at both ends, the connecting plates 161 are inserted with connecting bolts 162 on the side, the number of connecting bolts 162 is set to be several, and the connecting bolts 162 are respectively screwed on the side of the movable stirring ring 150 and the spiral agitator 130, the transmission direction of the movable stirring ring 150 is to the left, and the transmission direction of the spiral agitator 130 is to the right.

[0052] When the movable stirring ring 150 is close to the spiral agitator 130, a locking piece 170 is jointly inserted between the spiral agitator 130 and the adjacent movable stirring ring 150, and the transmission direction of the movable stirring ring 150 is the same as that of the spiral agitator 130, the locking piece 170 comprises a locking bolt 171 and a locking nut 172, the locking bolt 171 is inserted in the side of the movable stirring ring 150 and the spiral agitator 130 at the same time, and the locking nut 172 is screwed on the end of the locking bolt 171, so as to fix the movable stirring ring 150 and the spiral agitator 130 together, so that the transmission direction of the movable stirring ring 150 and the transmission direction of the spiral agitator 130 are both to the right, and the side of the machine body 110 is hinged with a baffle 180.

[0053] In the embodiment: the machine body 110 is placed on the ground, the movable stirring ring 150 and the spiral agitator 130 are in the first state, various powders required for compound fertilizer production are poured into the mixing cavity 120, the setting of the motor 140 drives the movable stirring ring 150 and the spiral agitator 130 to rotate at the same time, and the powders in it are stirred and mixed, after the mixing of the powders is completed, the limiting rod 160 is removed, the movable stirring ring 150 is pushed to be close to the spiral agitator 130, and the movable stirring ring 150 and the spiral agitator 130 are fixed by the locking piece 170, so as to change the movable stirring ring 150 and the spiral agitator 130 from the first state to the second state, open the baffle 180, and then drive the movable stirring ring 150 and the spiral agitator 130 to rotate at the same time by the motor 140, so as to discharge the uniformly mixed powders in it from the machine body 110, thereby facilitating the rapid and convenient output of the uniformly mixed powders into the next process, greatly improving the production efficiency and product qualification rate.

[0054] Embodiment 3

[0055] The embodiment is intended to further facilitate the solution to the problem that it is inconvenient to simultaneously push multiple movable stirring rings 150, thereby affecting the convenience of using the device. The embodiment is an improvement based on embodiment 2. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A plurality of movable stirring rings 150 are arranged between adjacent screw rings of the spiral stirrer 130, and the movable stirring rings 150 are riveted to the side of the spiral stirrer 130, so that the movable stirring rings 150 can rotate on the spiral stirrer 130. The side of the movable stirring rings 150 is jointly inserted with a connecting rod 151, the side of the connecting rod 151 is installed with a limiting block 152, the limiting block 152 is arranged in a cylindrical shape, the number of the limiting block 152 is the same as that of the movable stirring rings 150, and the limiting block 152 is rotatably inserted into the inside of the movable stirring rings 150.

[0056] The upper side of the support plate 111 is fixedly installed with a mounting frame 173, the outer side of the mounting frame 173 is installed with a telescopic piece 174, the telescopic piece 174 is arranged as an electric lifting rod or a telescopic cylinder, the end of the telescopic piece 174 is inserted into the side of the machine body 110 in an interference fit, the telescopic end of the telescopic piece 174 is arranged in the mixing cavity 120, and the telescopic end of the telescopic piece 174 is close to the movable stirring rings 150.

[0057] In the embodiment: through the cooperation of the connecting rod 151 and the limiting block 152, multiple movable stirring rings 150 are connected into a whole, so that when the telescopic piece 174 pushes one movable stirring ring 150, the multiple movable stirring rings 150 can be simultaneously and angularly rotated through the transmission of the connecting rod 151 and the limiting block 152, which facilitates the simultaneous pushing of multiple movable stirring rings 150, thereby further improving the convenience of using the device.

[0058] Embodiment 4

[0059] The embodiment is intended to further facilitate the solution to the problem that it is inconvenient to simultaneously push multiple movable stirring rings 150, thereby affecting the convenience of using the device. The embodiment is an improvement based on embodiment 2. For details, please refer to Figure 1 and Figure 8The side of the baffle plate 180 is provided with a sealing strip 181, the number of sealing strips 181 is two, the sealing strip 181 is provided as a rubber strip, and the sealing strip 181 is arranged between the baffle plate 180 and the machine body 110 to increase the sealing performance. The side of the baffle plate 180 is connected with a guide plate 182, the number of guide plates 182 is two, and the two guide plates 182 are symmetrically arranged on the left and right sides of the baffle plate 180. The outside of the machine body 110 is provided with buckles 183, the number of buckles 183 is several, the buckles 183 each include a buckle part A 184 and a buckle part B 185, the buckle part A 184 is fixedly connected with the machine body 110, the buckle part B 185 is fixedly connected with the guide plate 182, and the buckle part A 184 is clamped with the buckle part B 185.

[0060] In the embodiment: through the arrangement of the buckle 183, the baffle plate 180 is convenient to open and close, the baffle plate 180 is inclined downward when opened, and the output powder can be output along the baffle plate 180. Through the arrangement of the guide plate 182, the output powder is guided, so that the uniformly mixed powder is output from the machine body 110, and the output powder is convenient to concentrate and guide, thereby further improving the use effect of the device.

[0061] Example 5

[0062] A powder mixing process for producing a special fertilizer for rice includes the following specific steps:

[0063] S1. Powder mixing: various powders used for producing a special fertilizer for rice are added into the mixing cavity 120 of the powder mixing machine body 110 according to a certain proportion, and the screw stirrers 130 and the movable stirring ring 150 rotating in opposite directions are simultaneously rotated to uniformly mix the various powders;

[0064] S2. Adjusting the transmission direction of the movable stirring ring 150: the movable stirring ring 150 is pushed to the right, so that the transmission directions of the movable stirring ring 150 and the screw stirrers 130 are the same;

[0065] S3. Outputting the powder: the baffle plate 180 is opened, the screw stirrers 130 and the movable stirring ring 150 rotating in the same direction are simultaneously rotated to convey the uniformly mixed powder out of the machine body 110.

[0066] After the above mixing, the powder is granulated in a granulating kiln by an elevator, and then is sieved, dried, cooled, coated, and finally packaged to obtain the special fertilizer F5 for rice.

[0067] Comparative Example 1

[0068] The raw materials used are the same as those in Example 5, a conventional mixing device is used instead of the powder mixing machine in Example 5 in the mixing process, and a comparative fertilizer D1 is obtained.

[0069] Evaluation test (detection test) :

[0070] 1) Purpose of the test: to understand the uniformity of fertilizer nutrients;

[0071] 2) Experimental fertilizer: select example 5 rice special fertilizer F5, and control fertilizer D1;

[0072] 3) Test method: randomly select 100g sample for crushing, then detect the nitrogen, phosphorus, potassium and silicon content in the tested fertilizer according to “Compound Fertilizer” GB / T15063-2020, randomly select 5 times for each fertilizer variety, the nutrient results are shown in Table 1 and the nutrient fluctuation rate compared with N-P2O5-K2O+Si: 19-8-19+0.2 is shown in Table 2.

[0073] Table 1 Nutrient content in fertilizer

[0074]

[0075] Table 2 Nutrient fluctuation rate compared with 19-8-19+0.2

[0076]

[0077]

[0078] As shown in Table 1 and Table 2, the nutrient rate of the fertilizer produced according to the technical scheme provided by the application is smaller, and the nutrient fluctuation rate of the comparative fertilizer is larger, the technical scheme of the application can make the mixing of materials with larger viscosity more uniform, reduce the nutrient fluctuation, and provide the qualified rate of finished products.

[0079] It should be noted that, in this text, relational terms such as first and second are used merely to distinguish one entity or action from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. Moreover, the terms “include”, “contain” or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0080] The above is only the preferred embodiment of the application, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the technical principles of the application, and these improvements and refinements should also be considered as the protection scope of the application.

Claims

1. A processing technology for rice-specific fertilizer, characterized in that, It includes the following components in parts by weight: urea 25-45 parts, ammonium chloride 1-20 parts, monoammonium phosphate 10-30 parts, potassium chloride 10-40 parts, rice efficiency enhancement technology package 1-4 parts, soil 1-10 parts, 98 sulfuric acid 1-2 parts, synthetic ammonia 1-2 parts, and anti-caking agent 0.3-1 parts; The effective components of nitrogen, phosphorus, and potassium are: N 15-25 parts, P2O5 6-15 parts, K2O 15-25 parts, and the rice efficiency enhancement technology package is composed of sodium silicate 50 parts, zinc sulfate 25 parts, and borax 25 parts. The processing technology of rice-specific fertilizer includes the following steps: Step 1: Thoroughly mix sodium silicate, zinc sulfate, and borax in the specified proportions to form a rice-enhancing technology package for later use; Step 2: Add solid raw materials urea, ammonium chloride, monoammonium phosphate, potassium chloride, rice efficiency enhancement technology package, and clay into the powder mixer for thorough mixing, and then send them to the granulation kiln via elevator. Add sulfuric acid and synthetic ammonia for granulation to obtain coarse particles. Step 3: After screening, drying, and cooling, the coarse particles from Step 2 are coated in a coating kiln and then packaged to obtain rice-specific fertilizer. The powder mixing equipment in Step 2 includes: a machine body (110), a mixing chamber (120) inside the machine body (110), a spiral stirrer (130) rotating inside the mixing chamber (120), a motor (140) installed on the outside of the machine body (110), the output shaft of the motor (140) being connected to the spiral stirrer (130) for transmission, and a movable stirring ring (150) on the side of the spiral stirrer (130), the number of which is set to several. When the stirring ring (150) is away from the spiral stirrer (130), a limit rod (160) is provided between the spiral stirrer (130) and the adjacent movable stirring ring (150), and the movable stirring ring (150) and the spiral stirrer (130) have opposite conveying directions. When the movable stirring ring (150) is close to the spiral stirrer (130), the spiral stirrer (130) and the adjacent movable stirring ring (150) are connected together by a locking fastener (170), and the movable stirring ring (150) and the spiral stirrer (130) have the same conveying direction. A baffle (180) is hinged to the side of the machine body (110). The movable stirring rings (150) are respectively disposed between adjacent spiral rings of the spiral stirrer (130), and the movable stirring rings (150) are all riveted to the side of the spiral stirrer (130). A connecting rod (151) is inserted into the side of the movable stirring rings (150), and a limiting block (152) is installed on the side of the connecting rod (151). The number of limiting blocks (152) is the same as the number of movable stirring rings (150), and the limiting blocks (152) are rotatably inserted into the inside of the movable stirring rings (150).

2. The rice-specific fertilizer processing technology according to claim 1, characterized in that: A support plate (111) is installed on the outside of the body (110), and a support leg (112) is installed on the outside of the support plate (111). The number of support legs (112) is set to several.

3. The rice-specific fertilizer processing technology according to claim 2, characterized in that: The bottom of the mixing chamber (120) is set in an arc shape, and the arc shape of the bottom of the mixing chamber (120) is used in conjunction with the spiral stirrer (130).

4. The rice-specific fertilizer processing technology according to claim 3, characterized in that: A support frame (131) is provided inside the mixing chamber (120). Both ends of the support frame (131) are connected to the inner wall of the machine body (110). Bearings (132) are installed on the inner sides of the machine body (110) and the support frame (131). A rotating shaft (133) is provided between the bearings (132). Both ends of the rotating shaft (133) are inserted into the bearings (132). The rotating shaft (133) passes through the spiral stirrer (130). A fixing rod (134) is installed on the outer side of the rotating shaft (133). The number of fixing rods (134) is set to several, and the other end of each fixing rod (134) is connected to the spiral stirrer (130). The motor (140) is installed on the outer side of the support plate (111). The output shaft of the motor (140) is inserted into the side of the machine body (110), and the output shaft of the motor (140) is keyed to the end of the rotating shaft (133).

5. The rice-specific fertilizer processing technology according to claim 4, characterized in that: Both ends of the limiting rod (160) are equipped with connecting pieces (161), and connecting bolts (162) are inserted into the sides of the connecting pieces (161). The number of connecting bolts (162) is set to several. The connecting bolts (162) are respectively screwed into the sides of the movable stirring ring (150) and the spiral stirrer (130). The conveying direction of the movable stirring ring (150) is to the left, and the conveying direction of the spiral stirrer (130) is to the right.

6. The rice-specific fertilizer processing technology according to claim 1, characterized in that: The locking device (170) includes a locking bolt (171) and a locking nut (172). The locking bolt (171) is inserted into the side of the movable stirring ring (150) and the spiral stirrer (130), and the locking nut (172) is screwed onto the end of the locking bolt (171). The conveying direction of the movable stirring ring (150) and the conveying direction of the spiral stirrer (130) are both to the right.

7. The rice-specific fertilizer processing technology according to claim 2, characterized in that: A mounting bracket (173) is installed on the outside of the support plate (111), and a telescopic component (174) is installed on the outside of the mounting bracket (173). The telescopic component (174) is configured as an electric lifting rod. The end of the telescopic component (174) is inserted into the side of the machine body (110). The telescopic end of the telescopic component (174) is located in the mixing chamber (120), and the telescopic end of the telescopic component (174) is close to the movable stirring ring (150).

8. The rice-specific fertilizer processing technology according to claim 4, characterized in that: A sealing strip (181) is installed on the side of the baffle (180). The number of sealing strips (181) is set to several. All sealing strips (181) are rubber strips. A guide plate (182) is connected to the side of the baffle (180). The number of guide plates (182) is set to two. The two guide plates (182) are symmetrically arranged on the left and right sides of the baffle (180). A buckle (183) is provided on the outside of the body (110). The number of buckles (183) is set to several. Each buckle (183) includes a buckle component A (184) and a buckle component B (185). The buckle component A (184) is connected to the body (110). The buckle component B (185) is connected to the guide plate (182). The buckle component A (184) is engaged with the buckle component B (185).

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