Compound fertilizer mixing stirrer
By designing the mixing device, heating and insulation device, and feeding and discharging device of the compound fertilizer mixing mixer, the problems of uneven mixing and heating of raw materials in the production of high-tower compound fertilizer were solved, realizing uniform mixing and heating of compound fertilizer, and improving mixing efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2026-03-24
AI Technical Summary
In the production process of high-tower compound fertilizer, uneven mixing and heating of raw materials can affect the quality of the compound fertilizer.
A compound fertilizer mixing machine was designed, including a mixing device, a heating and insulation device, and a feeding and discharging device. The mixing device ensures uniform mixing of raw materials through a two-layer mixing blade and staggered blade design; the heating and insulation device ensures uniform heating through an inner and outer wall heating coil design; and the feeding and discharging device improves mixing efficiency through a reasonable layout.
It achieves uniform mixing and heating of compound fertilizer raw materials, improving mixing efficiency and quality.
Smart Images
Figure CN224024778U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of chemical fertilizer production equipment, especially relates to a compound fertilizer mixing and stirring machine. BACKGROUND
[0002] High tower compound fertilizer (full name high tower granulation compound fertilizer) is one of new technologies of compound fertilizer production process in China, and it is a urea, potash melt granulation method, which utilizes the principle of rapid crystallization of urea after melting, heats phosphorus ammonium through metering and urea, potash slurry metering, and then sprays into a high tower through a nozzle, thereby generating compound fertilizer particles, and the fertilizer has the characteristics of uniform and smooth particles, melting holes, and non-caking. SUMMARY
[0003] The utility model discloses at least solve one of the technical problems in prior art. Therefore, the utility model provides a compound fertilizer mixing and stirring machine, which is beneficial to uniform stirring and heating of compound fertilizer raw materials, and improves the mixing efficiency and quality of compound fertilizer.
[0004] The utility model discloses the technical scheme that solves its technical problem adopts:
[0005] A compound fertilizer mixing and stirring machine, comprising
[0006] A stirring device, comprising a stirring tank, a stirring shaft vertically arranged in the stirring tank, a stirring motor driving the stirring shaft to rotate, the stirring shaft sequentially has a first stirring paddle and a second stirring paddle from top to bottom, and the paddle blades of the first stirring paddle and the second stirring paddle are arranged at an angle offset.
[0007] A heating and heat preservation device, comprising a first heating coil and a second heating coil, the first heating coil is spirally arranged around the inner wall of the stirring tank, and is used for heating raw materials, and the second heating coil is spirally arranged around the outer wall of the stirring tank, and is used for heat preservation of the stirring tank.
[0008] An inlet and outlet device, comprising a first feeding pipe and a second feeding pipe arranged at the top of the stirring tank, and an overflow discharge pipe arranged on the side wall of the stirring tank, the first feeding pipe is used for adding liquid raw materials, the second feeding pipe is used for adding powder raw materials, and the overflow discharge pipe is used for discharging.
[0009] According to the compound fertilizer mixing and stirring machine, the following beneficial effects are achieved: the stirring device drives the first stirring paddle and the second stirring paddle to rotate through the rotation of the stirring motor, the first stirring paddle is a front material paddle, the second stirring paddle is a rear material paddle, the flow field of the two layers of stirring paddles is greatly improved compared with that of one layer of stirring paddles, the circulation of thick slurry is facilitated, the situation that part of raw materials cannot be stirred is improved, and the paddle blades of the first stirring paddle and the second stirring paddle are arranged at a staggered angle, so that the compound fertilizer raw materials can be uniformly stirred. The heating and heat preservation device heats the raw materials through the first heating coil pipe arranged in a spiral around the inner wall of the stirring tank, and simultaneously heats the stirring tank through the second heating coil pipe arranged in a spiral around the outer wall of the stirring tank, so that the heat loss of the stirring tank is prevented, and the compound fertilizer raw materials can be uniformly heated. The feeding and discharging device adds liquid raw materials through the first feeding pipe arranged on the top of the stirring tank, adds powder raw materials through the second feeding pipe arranged on the top of the stirring tank, and discharges materials through the overflow discharging pipe arranged on the side wall of the stirring tank, and the feeding and discharging layout is reasonable. Therefore, the compound fertilizer mixing and stirring machine is beneficial to uniform stirring and uniform heating of the compound fertilizer raw materials, and the mixing efficiency and quality of the compound fertilizer are improved.
[0010] According to some embodiments of the present application, the shape of the stirring tank is cylindrical, and the bottom surface of the stirring tank is semispherical.
[0011] Beneficially, the cylindrical shape of the stirring tank allows the stirring shaft to be arranged on the central axis of the stirring tank, and the first heating coil pipe and the second heating coil pipe are arranged along the inner wall and the outer wall of the stirring tank, respectively, which is beneficial to uniform stirring and uniform heating of the compound fertilizer raw materials, and the semispherical bottom surface of the stirring tank is beneficial to the circulation of the mixed slurry and the realization of the effect of circulating stirring.
[0012] According to some embodiments of the present application, the top surface of the stirring tank is provided with a mounting bracket for fixedly mounting the stirring motor.
[0013] Beneficially, the mounting bracket can be used to fixedly mount the stirring motor on the top surface of the stirring tank, thereby ensuring stable operation of the stirring motor.
[0014] According to some embodiments of the present application, a speed reducer is further arranged between the stirring motor and the stirring shaft.
[0015] Beneficially, the speed reducer can increase the torque of the first stirring paddle and the second stirring paddle, which is beneficial to uniform stirring of the compound fertilizer raw materials by the first stirring paddle and the second stirring paddle.
[0016] According to some embodiments of the present application, the first stirring paddle and the second stirring paddle are both three-blade propeller blades.
[0017] Beneficially: adopt three-leaf propelling type paddle, simple structure, convenient to manufacture, suitable for low viscosity, large flow occasion, using smaller stirring power through high-speed rotating paddle can obtain better stirring effect.
[0018] According to some embodiments of the present application, the paddle of the first stirring paddle and the second stirring paddle is arranged at 60 degrees.
[0019] Beneficially: the projection center of the first stirring paddle and the second stirring paddle is symmetrical, which is beneficial to uniform stirring of the compound fertilizer raw materials.
[0020] According to some embodiments of the present application, the first heating coil is provided with multiple turns from the inner wall of the stirring tank to the stirring shaft.
[0021] Beneficially: the multiple turns of the first heating coil are beneficial to rapid heating, which can improve the feeding speed of the first feeding pipe and the second feeding pipe, thereby improving the mixing efficiency of the compound fertilizer as a whole.
[0022] According to some embodiments of the present application, the diameter of the first heating coil and the second heating coil is 50mm-60mm.
[0023] Beneficially: the thickened heating coil can reduce the number of turns of the heating coil, which is also beneficial to the entry of high-temperature steam, and most importantly, can increase the gap of the feeding coil and reduce the occurrence of material resistance.
[0024] According to some embodiments of the present application, the thickness of the first heating coil and the second heating coil is 3.5mm-4mm.
[0025] Beneficially: the heating coil with such thickness has the first strength to prevent deformation, and in addition, has good thermal conductivity, which is beneficial to rapid heating.
[0026] According to some embodiments of the present application, the overflow discharge pipe is arranged downwardly inclined on the side wall of the stirring tank.
[0027] Beneficially: the overflow discharge pipe is arranged in this way, which is beneficial to the discharge of the stirred compound fertilizer mixture.
[0028] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of an embodiment of the present utility model;
[0031] Figure 2 for Figure 1 Internal diagram;
[0032] Figure 3 for Figure 2 Top view of the cross section
[0033] Figure 4 for Figure 2 A schematic diagram of the first or second agitator.
[0034] Reference numerals: mixing tank 100, mixing shaft 110, mixing motor 120, first mixing blade 130, second mixing blade 140, first heating coil 150, second heating coil 160, first feeding pipe 170, second feeding pipe 180, overflow discharge pipe 190, mounting bracket 200, reducer 210, fixed bracket 220. Detailed Implementation
[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0036] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0037] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number. If there is a description of the first and the second, this is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0038] In the description of the utility model, it is necessary to point out that, unless there is definite stipulation and limitation, the term "installation, connection and connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0039] The following refers to Figures 1-4 A compound fertilizer mixing machine is described in detail with a specific embodiment. It is worth understanding that the following description is only exemplary and is not a specific limitation of the utility model.
[0040] As Figures 1-3 Indicated, a compound fertilizer mixing machine, comprising stirring device, heating and heat preservation device and inlet and outlet device.
[0041] The stirring device comprises a stirring tank 100, a stirring shaft 110 vertically arranged in the stirring tank 100, and a stirring motor 120 for driving the stirring shaft 110 to rotate. The stirring shaft 110 is sequentially provided with a first stirring paddle 130 and a second stirring paddle 140 from top to bottom. The paddles of the first stirring paddle 130 and the second stirring paddle 140 are arranged at an angle. The heating and heat preserving device comprises a first heating coil pipe 150 and a second heating coil pipe 160. The first heating coil pipe 150 is spirally arranged around the inner wall of the stirring tank 100 and is used for heating the raw materials. The second heating coil pipe 160 is spirally arranged around the outer wall of the stirring tank 100 and is used for heat preserving of the stirring tank 100. The feeding and discharging device comprises a first feeding pipe 170 and a second feeding pipe 180 arranged at the top of the stirring tank 100, and an overflow discharging pipe 190 arranged at the side wall of the stirring tank 100. The first feeding pipe 170 is used for feeding liquid raw materials. The second feeding pipe 180 is used for feeding powder raw materials. The overflow discharging pipe 190 is used for discharging. During operation, the stirring device drives the stirring paddles to rotate through the stirring motor 120, thereby driving the first stirring paddle 130 and the second stirring paddle 140 to rotate. The first stirring paddle 130 is a front material paddle, and the second stirring paddle 140 is a rear material paddle. The two layers of stirring paddles greatly improve the flow field compared with one layer of stirring paddles, which is beneficial to the circulation of thick slurry and improves the situation that part of the raw materials cannot be stirred. Moreover, the paddles of the first stirring paddle 130 and the second stirring paddle 140 are arranged at an angle, which is beneficial to uniform stirring of the compound fertilizer raw materials. The heating and heat preserving device heats the raw materials through the first heating coil pipe 150 spirally arranged around the inner wall of the stirring tank 100, and simultaneously heat preserves the stirring tank 100 through the second heating coil pipe 160 spirally arranged around the outer wall of the stirring tank 100. In this way, heat loss from the outer wall of the stirring tank 100 can be prevented, which is beneficial to uniform heating of the compound fertilizer raw materials. The feeding and discharging device feeds liquid raw materials through the first feeding pipe 170 arranged at the top of the stirring tank 100, feeds powder raw materials through the second feeding pipe 180 arranged at the top of the stirring tank 100, and discharges through the overflow discharging pipe 190 arranged at the side wall of the stirring tank 100. The feeding and discharging layout is reasonable. Therefore, the compound fertilizer mixing and stirring machine is beneficial to uniform stirring and uniform heating of the compound fertilizer raw materials, and improves the mixing efficiency and quality of the compound fertilizer.
[0042] Specifically, as Figure 1 and Figure 2As shown, the shape of the stirring tank 100 is cylindrical, and the bottom surface of the stirring tank 100 is semispherically convex. The cylindrical shape of the stirring tank 100 can provide the stirring shaft 110 on the central axis of the stirring tank 100, and the first heating coil 150 and the second heating coil 160 can be arranged along the inner wall and the outer wall of the stirring tank 100, respectively, which is conducive to uniform stirring and heating of the compound fertilizer raw materials, and the semispherically convex bottom surface of the stirring tank 100 is conducive to the circulation of the mixed slurry and the realization of the effect of circulating stirring. In addition, the top surface of the stirring tank 100 is provided with a mounting bracket 200 for fixedly mounting the stirring motor 120. The mounting bracket 200 can be arranged to fixedly mount the stirring motor 120 on the top surface of the stirring tank 100, so as to ensure the stable operation of the stirring motor 120. Moreover, the stirring motor 120 is further provided with a speed reducer 210 between the stirring motor 120 and the stirring shaft 110. The speed reducer 210 can increase the torque of the first stirring paddle 130 and the second stirring paddle 140, which is conducive to uniform stirring of the compound fertilizer raw materials by the first stirring paddle 130 and the second stirring paddle 140.
[0043] As shown in Figure 4 , the first stirring paddle 130 and the second stirring paddle 140 are both three-blade propeller blades. The three-blade propeller blade has a simple structure and is easy to manufacture, and is suitable for low-viscosity and large-flow occasions. A smaller stirring power can obtain a better stirring effect through high-speed rotation of the paddle. Of course, a four-blade propeller blade can also achieve good results. As shown in Figure 3 , the paddles of the first stirring paddle 130 and the second stirring paddle 140 are arranged at an angle of 60 degrees. The projection center of the first stirring paddle 130 and the second stirring paddle 140 is symmetrically arranged, which is conducive to uniform stirring of the compound fertilizer raw materials.
[0044] As shown in Figure 2 , the first heating coil 150 is provided with multiple turns from the inner wall of the stirring tank 100 to the direction of the stirring shaft 110. It should be noted that the top of the multiple turns of the first heating coil 150 needs to be fixed by a fixed bracket 220. The multiple turns of the first heating coil 150 are conducive to rapid heating, which can improve the feeding speed of the first feeding pipe 170 and the second feeding pipe 180, thereby improving the mixing efficiency of the compound fertilizer as a whole.
[0045] It should be noted that the diameters of the first heating coil 150 and the second heating coil 160 are both 50mm-60mm. The use of thick heating coils can reduce the number of turns of the heating coil, which is also conducive to the entry of high-temperature steam, and most importantly, it can increase the gap of the feeding coil and reduce the occurrence of material resistance. The thickness of the first heating coil 150 and the second heating coil 160 is 3.5mm-4mm. The heating coil with such thickness has the first strength to prevent deformation, and in addition, it has good thermal conductivity, which is conducive to rapid heating.
[0046] It can be understood that, asFigure 1 and Figure 2 As shown in FIG. 1, the overflow discharge pipe 190 is arranged downwardly inclined to the side wall of the stirring tank 100. The arrangement of the overflow discharge pipe 190 is conducive to the discharge of the mixed slurry of the compound fertilizer.
[0047] In the description of the present specification, the description of the terms "one embodiment, some embodiments, illustrative embodiments, examples, specific examples, or some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0048] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the purpose of the present application.
Claims
1. A compound fertilizer mixing mixer, characterized in that, include: The stirring device includes a stirring tank (100), a stirring shaft (110) vertically arranged in the stirring tank (100), and a stirring motor (120) that drives the stirring shaft (110) to rotate. The stirring shaft (110) is provided with a first stirring blade (130) and a second stirring blade (140) from top to bottom. The blades of the first stirring blade (130) and the second stirring blade (140) are staggered at an angle. The heating and heat preservation device includes a first heating coil (150) and a second heating coil (160). The first heating coil (150) is arranged to rotate around the inner wall of the mixing tank (100) for heating the raw materials, and the second heating coil (160) is arranged to rotate around the outer wall of the mixing tank (100) for heat preservation of the mixing tank (100). The feeding and discharging device includes a first feeding pipe (170) and a second feeding pipe (180) disposed on the top of the mixing tank (100), and an overflow discharge pipe (190) disposed on the side wall of the mixing tank (100). The first feeding pipe (170) is used to add liquid raw materials, the second feeding pipe (180) is used to add powder raw materials, and the overflow discharge pipe (190) is used to discharge materials.
2. The compound fertilizer mixing machine according to claim 1, characterized in that, The mixing tank (100) is cylindrical in shape, and the bottom surface of the mixing tank (100) is a hemispherical protrusion.
3. The compound fertilizer mixing mixer according to claim 1, characterized in that, The top surface of the mixing tank (100) is provided with a mounting bracket (200), which is used to fix the mixing motor (120).
4. A compound fertilizer mixing mixer according to claim 1, characterized in that, A speed reducer (210) is also provided between the stirring motor (120) and the stirring shaft (110).
5. A compound fertilizer mixing machine according to claim 1, characterized in that, Both the first impeller (130) and the second impeller (140) are three-bladed propulsion impellers.
6. A compound fertilizer mixing mixer according to claim 5, characterized in that, The blades of the first stirring paddle (130) and the second stirring paddle (140) are offset by 60 degrees.
7. A compound fertilizer mixing mixer according to claim 1, characterized in that, The first heating coil (150) has multiple turns from the inner wall of the mixing tank (100) toward the mixing shaft (110).
8. A compound fertilizer mixing mixer according to claim 1, characterized in that, The diameters of the first heating coil (150) and the second heating coil (160) are both 50mm-60mm.
9. A compound fertilizer mixing mixer according to claim 1, characterized in that, The thickness of the first heating coil (150) and the second heating coil (160) is 3.5mm-4mm.
10. A compound fertilizer mixing machine according to claim 1, characterized in that, The overflow pipe (190) is located on the side wall of the mixing tank (100) and is inclined downwards.