CN210434441U - Solid powder mixing system - Google Patents
Solid powder mixing system Download PDFInfo
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- CN210434441U CN210434441U CN202020329239.4U CN202020329239U CN210434441U CN 210434441 U CN210434441 U CN 210434441U CN 202020329239 U CN202020329239 U CN 202020329239U CN 210434441 U CN210434441 U CN 210434441U
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Abstract
The utility model discloses a solid powder hybrid system, include: the raw material tank is used for storing materials to be mixed; the device is provided with a feed inlet, a first feed opening and a second feed opening; the first-stage mixing tank is provided with a feeding port, a discharging port and a mixing port, and the feeding port is connected with the first discharging port of the raw material tank; the second-stage mixing tank is provided with a feeding port, a discharging port and a mixing port, and the feeding port is connected with a second discharging port of the raw material tank; the mixing capacity is larger than that of the first-stage mixing tank; conveyor, including the pipeline of connection between the first feed opening of head tank and one-level blending tank feed inlet, connect the pipeline between head tank second feed opening and second grade blending tank feed inlet, connect the pipeline between one-level blending tank discharge gate and second grade blending tank compounding mouth and install on each pipeline and the powder drive arrangement on one-level blending tank compounding mouth. The mixing device is used for solving the problems of low mixing efficiency, uneven mixing, environmental pollution, inflexible material ratio control and the like in the prior art, improves the mixing efficiency and uniformity, is environment-friendly and flexibly controls the material ratio.
Description
Technical Field
The utility model relates to a solid powder thing mixes technical field, specifically is a solid powder hybrid system.
Background
At present, in mechanical equipment for mixing solid materials, a mechanical stirrer or a centrifugal mixer is generally adopted; because solid particles are not as strong as liquid diffusion capacity, when multiple solids are mixed together, the solids are difficult to be uniformly mixed by a machine. The disadvantage is especially obvious when a large amount of solid needs to be mixed and the material preparation proportion is greatly different.
In order to obtain uniformly mixed materials, the stirring time has to be prolonged, but even the stirring among the solid powder is difficult to achieve uniformity, especially the stirring of the solid powder reaches tens of tons, even if the solid powder is continuously stirred for several hours, the ideal mixing degree is difficult to achieve, and the simple single-stage stirring does not meet the current production requirement due to the problems of long operation period, low stirring efficiency, uneven mixing and the like;
centrifugal mixing throws out materials falling on the centrifugal mixing through the rotation of the disperser under the action of centrifugal force, but the materials are generally blown away by air flow, on one hand, the requirement on the sealing performance of equipment is high, the leakage of the materials is difficult to avoid by the current technical level, the dust environment has great harm to the body of operators, and the pollution to the external environment is serious; on the other hand, continuous feeding is needed for improving the productivity and maintaining continuous operation, the requirement of the material ratio on the feeding speed is high, the requirement can be met only by debugging for many times, and the material ratio is difficult to flexibly regulate and control.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solid powder hybrid system for overcome among the prior art operation cycle length, mixing efficiency low and mix inhomogeneous or dust pollution, material ratio and be difficult to defects such as accuse, mix through multistage dilatation and shorten operation cycle, improve mixing efficiency and improve the homogeneous mixing quality, simultaneously greatly reduced dust pollution improves the flexibility of control material ratio.
In order to achieve the above object, the present invention provides a solid powder mixing system, including:
the raw material tank is used for storing materials to be mixed; the device is provided with a feed inlet, a first feed opening and a second feed opening;
the first-stage mixing tank is provided with a feeding hole and a discharging hole, the feeding hole is connected with the first discharging hole of the raw material tank, and the feeding hole is fixedly connected, specifically can be detachably connected, so that the maintenance is convenient;
the second-stage mixing tank is provided with a feeding hole and a discharging hole, and the feeding hole is connected with a second discharging hole of the raw material tank (the connection relation is the same as above); the mixing capacity is larger than that of the first-stage mixing tank;
the conveying device comprises a pipeline connected between a first feed opening of the raw material tank and a feed inlet of the first-stage mixing tank, a pipeline connected between a second feed opening of the raw material tank and a feed inlet of the second-stage mixing tank, a pipeline connected between a discharge opening of the first-stage mixing tank and a feed inlet of the second-stage mixing tank, and powder driving devices installed on the pipelines and on the first-stage mixing tank.
Preferably, the raw material tank is also provided with a third feed opening; the solid powder mixing system further includes:
the third-stage mixing tank is provided with a feeding hole and a discharging hole, and the feeding hole is connected with a third discharging hole of the raw material tank; the mixing capacity is larger than that of the secondary mixing tank;
the conveying device further comprises a pipeline and a powder driving device which are connected between the third feed opening of the raw material tank and the feed inlet of the third-level mixing tank, and a pipeline and a powder driving device which are connected between the discharge opening of the second-level mixing tank and the feed inlet of the third-level mixing tank.
Preferably, the powder driving device is a powder pump or a blower;
one-level blending tank, second grade blending tank, tertiary blending tank all include:
the tank body is used for providing a mixing cavity for materials; the top is provided with the feed inlet, and the bottom is provided with the discharge outlet;
the main shaft penetrates through the axial direction of the tank body, two ends of the main shaft are supported on the tank body and are rotatably connected with the tank body, and one end of the main shaft extends out of the tank body;
the spiral blade is fixed on the outer side of the main shaft in a spiral shape, is positioned in the mixing cavity of the tank body, and is used for stirring and mixing the materials along with the rotation of the main shaft and conveying the materials to a discharge port;
and the motor is used for providing power, and the output shaft is in transmission connection with one end of the main shaft extending out of the tank body.
Preferably, the capacity of the secondary mixing tank is 10 times the capacity of the primary mixing tank.
Preferably, the capacity of the third-stage mixing tank is 10 times the capacity of the second-stage mixing tank.
Preferably, the solid powder mixing system further comprises a drying device mounted on each pipe.
Preferably, the solid powder mixing system further comprises a finished product storage tank and a monitoring unit, the monitoring unit comprising:
the gravity sensors are used for sensing weight information and sending the weight information to the controller and are respectively arranged at the bottoms of the raw material tank, the primary mixing tank and the secondary mixing tank;
the control switches are used for controlling the actions of the powder driving device, the first-stage mixing tank and the second-stage mixing tank under the triggering of the controller and are respectively and electrically connected with the powder driving device, the first-stage mixing tank and the second-stage mixing tank;
the control valves are respectively arranged at a feeding port, a first feed opening, a second feed opening, a feeding port and a discharging port of the primary mixing tank and a feeding port and a discharging port of the secondary mixing tank of the raw material tank;
the controller comprises a programmable controller or a singlechip, the input end of the controller is respectively connected with all the gravity sensors, and the output end of the controller is respectively connected with all the control switches and the control valves;
wherein the powder drive arrangement who is connected with one-level blending tank compounding mouth is the air-blower, and the powder drive arrangement who connects one-level blending tank and second grade blending tank and the powder drive arrangement who connects first feed opening, connects the second feed opening are the powder pump.
Preferably, the controller is configured to:
when the weight of the primary raw material in the raw material tank reaches a primary raw material threshold value, opening a first discharge port, a primary mixing tank feed port control valve, a powder pump connected with the first discharge port and a control switch of the primary mixing tank, and conveying the raw material in the raw material tank into the primary mixing tank;
when the materials in the primary mixing tank reach a primary mixing threshold value, closing the first feed opening, a control valve of the feed opening of the primary mixing tank, a powder pump connected with the first feed opening and a control switch of the primary mixing tank, stopping receiving the raw materials and starting primary mixing;
when the time threshold is reached and the weight of the secondary raw material in the raw material tank reaches the secondary raw material threshold, opening a control valve of a discharge port of the primary mixing tank, a feed port of the secondary mixing tank and a second feed port, and a control switch of an air blower connected with the primary mixing tank, a powder pump connected with the second feed port and a control switch of the secondary mixing tank, and simultaneously conveying the secondary raw material in the raw material tank and the primary mixed material in the primary mixing tank to the secondary mixing tank;
when the materials in the second-stage mixing tank reach a secondary mixing threshold value, closing control valves of a discharge port of the first-stage mixing tank, a feed port of the second-stage mixing tank and a second feed port, and a control switch of a blower connected with the first-stage mixing tank and a powder pump connected with the second feed port, stopping receiving the raw materials and the mixed materials and starting secondary mixing;
and when the time threshold is reached, closing a control switch of the secondary mixing tank, opening a discharge port of the secondary mixing tank, mixing materials and inputting the materials into a finished product storage tank. In order to monitor the weight of the finished product, a gravity sensor can be arranged at the bottom of the finished product storage tank and electrically connected with the controller, and a display device can be added to synchronously display the weight of the finished product in the finished product storage tank.
Preferably, the solid powder mixing system further comprises a finished product storage tank and a monitoring unit, the monitoring unit comprising:
the gravity sensors are used for sensing weight information and sending the weight information to the controller and are respectively arranged at the bottoms of the raw material tank, the primary mixing tank, the secondary mixing tank and the tertiary mixing tank;
the control switches are used for controlling the action of the powder driving device under the triggering of the controller and are respectively electrically connected with the powder driving device;
the control valves are respectively arranged at a feed inlet, a first feed opening, a second feed opening and a third feed opening of the raw material tank, a feed inlet and a discharge opening of the primary mixing tank, a feed inlet and a discharge opening of the secondary mixing tank and a feed inlet and a discharge opening of the tertiary mixing tank;
the controller comprises a programmable controller or a singlechip, the input end of the controller is respectively connected with all the gravity sensors, and the output end of the controller is respectively connected with all the control switches and the control valves;
wherein the powder drive arrangement who is connected with the one-level blending tank alone is the air-blower, and the powder drive arrangement who connects the one-level blending tank and second grade blending tank and the powder drive arrangement who connects first feed opening, connects the second feed opening, connects the third feed opening are the powder pump.
Preferably, the controller is configured to:
when the weight of the primary raw material in the raw material tank reaches a primary raw material threshold value, opening a first discharge port, a primary mixing tank feed port control valve, a powder pump connected with the first discharge port and a control switch of the primary mixing tank, and conveying the raw material in the raw material tank into the primary mixing tank;
when the materials in the primary mixing tank reach a primary mixing threshold value, closing the first feed opening, a control valve of the feed opening of the primary mixing tank, a powder pump connected with the first feed opening and a control switch of the primary mixing tank, stopping receiving the raw materials and starting primary mixing;
when the time threshold is reached and the weight of the secondary raw material in the raw material tank reaches the secondary raw material threshold, opening a control valve of a discharge port of the primary mixing tank, a feed port of the secondary mixing tank and a second feed port, and a control switch of an air blower connected with the primary mixing tank, a powder pump connected with the second feed port and a control switch of the secondary mixing tank, and simultaneously conveying the secondary raw material in the raw material tank and the primary mixed material in the primary mixing tank to the secondary mixing tank;
when the materials in the second-stage mixing tank reach a secondary mixing threshold value, closing control valves of a discharge port of the first-stage mixing tank, a feed port of the second-stage mixing tank and a second feed port, and a control switch of a blower connected with the first-stage mixing tank and a powder pump connected with the second feed port, stopping receiving the raw materials and the mixed materials and starting secondary mixing;
when the time threshold is reached and the weight of the tertiary raw material in the raw material tank reaches the threshold of the tertiary raw material, opening control valves of a discharge port of the secondary mixing tank, a feed port of the tertiary mixing tank and a third feed port, and a powder pump and a control switch of the tertiary mixing tank which are connected with the third feed port, and simultaneously conveying the tertiary raw material in the raw material tank and the secondary mixed material in the secondary mixing tank to the tertiary mixing tank;
when the materials in the third-stage mixing tank reach a third-stage mixing threshold value, closing control valves of a discharge port of the second-stage mixing tank, a feed port of the third-stage mixing tank and a third feed port and a control switch of a powder pump connected with the third feed port, stopping receiving the raw materials and the mixed materials and starting mixing for the third time;
and when the time threshold is reached, closing a control switch of the third-stage mixing tank, opening a discharge port of the third-stage mixing tank, mixing materials and inputting the materials into a finished product storage tank.
The utility model provides a solid powder mixing system, when mixing a large amount of more than two kinds of materials with great material ratio disparity, firstly, a small part of the materials with great specific gravity and all the materials with small specific gravity are mixed once through the first-stage mixing tank, then, a large part of the materials with great specific gravity and the materials mixed once are mixed twice in the second-stage mixing tank, and the conveying device is used for conveying the materials at different stages in the mixing process; in the primary mixing process, due to the fact that the volume is small, the materials are easy to mix uniformly, namely, the materials with small specific gravity are diluted for the first time and mixed for the second time, namely, the materials with small specific gravity are diluted for the second time, and in the secondary mixing process, although the capacity is greatly increased, the amount of the materials after the primary mixing is greatly increased relative to the amount of the materials with small specific gravity in the primary mixing process, compared with the method that the materials and the materials are directly mixed in the prior art, the materials are easy to mix uniformly, the problem of large-capacity uneven mixing is solved through multistage successive volume expansion mixing, the mixing tank can be completed by adopting the existing spiral stirring equipment, centrifugal dispersion equipment is not needed, and the mixing tank is relatively; because the materials are directly put into the raw material tank in a grading way, the limitation of the blanking speed is avoided, and the proportioning of the materials can be flexibly controlled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a solid powder mixing system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a solid powder mixing system according to a second embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Example one
As shown in fig. 1, the present invention provides a solid powder mixing system, comprising: a raw material tank 100, a primary mixing tank 10, a secondary mixing tank 20 and a conveying device;
the raw material tank 100 is used for storing materials to be mixed; the top part is provided with a feed inlet 100a, and the bottom part is provided with a first feed opening 11 and a second feed opening 12;
the first-stage mixing tank 10 is provided with a feeding hole 101, a discharging hole 102 and a mixing hole 103, wherein the feeding hole 101 is connected with a first discharging hole 11 of a raw material tank;
the secondary mixing tank 20 is provided with a feeding port 201, a discharging port 202 and a mixing port 203, and the feeding port 101 is connected with the second feed opening 12 of the raw material tank; the mixing capacity of the secondary mixing tank 20 is much greater than that of the primary mixing tank 10; in order to improve the mixing amount and the mixing efficiency, the volume ratio between two adjacent mixing tanks is 1: 15-1: 5, and in the embodiment, the capacity of the second-stage mixing tank 20 is preferably 10 times that of the first-stage mixing tank 10.
The conveying device comprises a pipeline 200 connected between a first feed opening 11 of the raw material tank and a feed opening 101 of the first-stage mixing tank, a pipeline 300 connected between a second feed opening 12 of the raw material tank and a feed opening 201 of the second-stage mixing tank, a pipeline 400 connected between a discharge opening 102 of the first-stage mixing tank and a mixing opening 203 of the second-stage mixing tank, and powder driving devices arranged on the pipelines and the mixing opening 103 of the first-stage mixing tank.
The powder driving device connected to the first-stage mixing tank 10 is the blower 500, and the powder driving device connected to the first-stage mixing tank 10 and the second-stage mixing tank 20, and the powder driving device connected to the first feed opening 11 and the second feed opening 12 are all the powder pumps 600.
To prevent moisture in the material from affecting the transportation by causing agglomeration of the powder, the solid powder mixing system further includes a drying device 700 installed on each pipe. The drying device is preferably a spherical powder dryer.
In order to improve the degree of automation of the operation, the solid powder mixing system further includes a finished product storage tank 800 and a monitoring unit 900, the monitoring unit 900 includes:
the gravity sensors are used for sensing weight information and sending the weight information to the controller and are respectively arranged at the bottoms of the raw material tank, the primary mixing tank and the secondary mixing tank; the weight measuring device is used for measuring the weight of the raw material tank, the primary mixing tank and the secondary mixing tank;
the control switches are used for controlling the actions of the powder driving device, the first-stage mixing tank and the second-stage mixing tank under the triggering of the controller and are respectively and electrically connected with the powder driving device, the first-stage mixing tank and the second-stage mixing tank;
the control valves are respectively arranged at a feeding port, a first feed opening, a second feed opening, a feeding port and a discharging port of the primary mixing tank and a feeding port and a discharging port of the secondary mixing tank of the raw material tank; the control valve can adopt an electromagnetic control valve; the driving end of the electromagnetic control valve is connected with a controller, the controller drives a valve core of the electromagnetic control valve to act through a high level signal or a low level signal, a pneumatic loop is switched to realize the opening or closing of the valve, and the electromagnetic control valve can select specific specifications such as a two-position two-way valve, a four-position three-way valve and the like according to a specific interface in the pneumatic loop;
and the controller comprises a programmable controller or a singlechip, the input end of the controller is respectively connected with all the gravity sensors, and the output end of the controller is respectively connected with all the control switches and the control valves.
The specific working process is as follows:
according to the total amount (for example 111 parts) and the material proportion (for example A: B =110: 1) of the materials to be configured, dividing the material A with the large specific gravity into 10 parts and 100 parts in advance; firstly, 10 parts of material A and 1 part of material B, namely all the material B, are added into a raw material tank 100 through a feed inlet 100 a; adding 100 parts of the material A and 11 parts of the mixed material (the mixed material of 10 parts of the material A and 1 part of the material B) into the raw material tank 100 again;
when the weight of the primary raw material in the raw material tank 100, namely 11 parts, reaches a primary raw material threshold value (the weight of the primary raw material, the dead weight of the raw material tank 100 and the weight loss during transportation, the weight loss during transportation is the process loss of sticking to the inner wall of a conveying device, leakage and the like, the raw material is generally set according to 1% -5% of the weight of the raw material, the 11 parts of the primary raw material is 110KG, the transportation loss can be 2KG, the dead weight of the raw material tank is 100KG, the primary raw material threshold value is 110+2+100=212KG, when the raw material is continuously added into the raw material tank 100, a controller monitors the quantity of the raw material in the raw material tank 100 through a weight sensor arranged at the bottom of the raw material tank, and triggers a control switch to act when the total weight value reaches 212 KG), the first discharge port 11, the control valve of the first-stage mixing tank feed port 101, the powder pump, conveying the raw material in the raw material tank 100 into the first-stage mixing tank 10;
when the materials in the first-stage mixing tank 10 reach a first mixing threshold (the principle is the same as the first raw material threshold, and the first mixing tank is a value set in the program of a controller, the controller monitors the weight of the raw materials in the first-stage mixing tank 10 through a gravity sensor, and triggers a control switch to act when the weight reaches the set value), the first discharge port 11, the control valve of the first-stage mixing tank feed port 101, a powder pump connected with the first discharge port 11 and the control switch of the first-stage mixing tank 10 are closed, the raw materials are stopped being received, and the first mixing is started; the first-stage mixing tank 10 can adopt a volume which is not much different from the volume of 11 parts of materials so as to be mixed uniformly;
when the time threshold is reached and the weight of the secondary raw material in the raw material tank 100 reaches the secondary raw material threshold, starting a discharge port 102 of the primary mixing tank, a feed port 201 of the secondary mixing tank, a control valve of the second feed port 12, an air blower 500 connected with the primary mixing tank 10, a powder pump connected with the second feed port 12 and a control switch of the secondary mixing tank 20, and simultaneously conveying 100 parts of the secondary raw material in the raw material tank 100 and 11 parts of the primary mixed material in the primary mixing tank 10 to the secondary mixing tank 20;
when the materials in the secondary mixing tank 20 reach the secondary mixing threshold value, closing the control valves of the discharge port 102 of the primary mixing tank, the feed port 201 of the secondary mixing tank, the second feed port 12, the air blower 500 connected with the primary mixing tank 10 and the control switch of the powder pump connected with the second feed port 12, stopping receiving the materials and the mixed materials and starting secondary mixing;
when the time threshold is reached, the control switch of the secondary mixing tank 20 is closed, the discharge port 202 of the secondary mixing tank is opened, and the material is mixed and input into the finished product storage tank 800.
Through the control logic of the controller in the action process, a program can be written in the controller or a circuit can be filled in the controller to realize the process.
Example two
As shown in fig. 2, on the basis of the first embodiment, in order to adapt to a larger-scale material mixing amount or further improve the uniformity of mixing, a three-stage capacity-expanding mixing framework is adopted:
the raw material tank 100 is also provided with a third feed opening 13; the solid powder mixing system further includes:
the third-stage mixing tank 30 is provided with a feeding hole 301, a discharging hole 302 and a mixing hole 303, and the feeding hole 301 is connected with a third feed opening 13 of the raw material tank; the mixing capacity is much greater than the capacity of the secondary mixing tank 20; in order to improve the mixing amount and the mixing efficiency, the volume ratio between two adjacent mixing tanks is 1: 15-1: 5, and in the embodiment, the capacity of the third mixing tank 30 is preferably 10 times that of the second mixing tank 20.
The conveying device further comprises a pipeline connected between the third feed opening 13 of the raw material tank 100 and the feed opening 301 of the third-stage mixing tank 30, a pipeline connected between the discharge opening 201 of the second-stage mixing tank 20 and the mixing opening 303 of the third-stage mixing tank 30, and a powder driving device installed on each pipeline. The powder driving device here is preferably a powder pump 600;
one-level blending tank 10, second grade blending tank 20, tertiary blending tank 30 can adopt the same agitator tank, all include:
the tank body is used for providing a mixing cavity for materials; the top is provided with the feed inlet, and the bottom is provided with the discharge outlet;
the main shaft penetrates through the axial direction of the tank body, two ends of the main shaft are supported on the tank body and are rotatably connected with the tank body, and one end of the main shaft extends out of the tank body; the main shaft of the horizontal stirring tank is generally in the horizontal direction, the main shaft of the vertical stirring tank is generally in the vertical direction, and the horizontal or vertical type can be selected according to the specific installation space; the tank bodies of the first-stage mixing tank 10, the second-stage mixing tank 20 and the third-stage mixing tank 30 shown in fig. 2 are all of a horizontal structure;
the spiral blade is fixed on the outer side of the main shaft in a spiral shape, is positioned in the mixing cavity of the tank body, and is used for stirring and mixing the materials along with the rotation of the main shaft and conveying the materials to a discharge port;
and the motor is used for providing power, and the output shaft is in transmission connection with one end of the main shaft extending out of the tank body.
The structure is suitable for mixing large-capacity materials, prevents the materials from being leaked easily and is environment-friendly. The positions of the feed inlet and the discharge outlet can be completely selected according to the space of equipment, and are flexible and changeable, for example, the transmission distance is longer, the feed inlet can be arranged at one end, and the discharge outlet is arranged at the other end; if the transmission distance is nearer, can establish the feed inlet at one end or both ends, the discharge gate sets up in the intermediate position, and propeller blade revolves to setting up to opposite to the part at both ends from the discharge gate position, and the main shaft surpasss same direction and rotates like this, just can mix and impel the material at both ends to same direction.
Preferably, the capacity of the second-stage mixing tank is 10 times of the capacity of the first-stage mixing tank, and the capacity of the third-stage mixing tank is 10 times of the capacity of the second-stage mixing tank. The function is the same as the first embodiment.
Preferably, the solid powder mixing system further comprises a finished product storage tank 800 and a monitoring unit 900 comprising:
the gravity sensors are used for sensing weight information and sending the weight information to the controller and are respectively arranged at the bottoms of the raw material tank, the primary mixing tank, the secondary mixing tank and the tertiary mixing tank;
the control switches are used for controlling the action of the powder driving device under the triggering of the controller and are respectively electrically connected with the powder driving device;
the control valves are respectively arranged at a feed inlet, a first feed opening, a second feed opening and a third feed opening of the raw material tank, a feed inlet and a discharge opening of the primary mixing tank, a feed inlet and a discharge opening of the secondary mixing tank and a feed inlet and a discharge opening of the tertiary mixing tank;
the controller comprises a programmable controller or a singlechip, the input end of the controller is respectively connected with all the gravity sensors, and the output end of the controller is respectively connected with all the control switches and the control valves;
wherein the powder drive arrangement who is connected with the one-level blending tank alone is the air-blower, but air-blower air outlet concrete connection is in the one end that the one-level blending tank is close to the feed inlet, connects the powder drive arrangement of one-level blending tank and second grade blending tank and connects first feed opening, connect the second feed opening, connect the powder drive arrangement of third feed opening and be the powder pump.
The specific working process is as follows:
according to the total amount (e.g. 1111 parts) and the material proportion (e.g. A: B =1110: 1) of the materials to be configured, dividing the large-specific-gravity material A into 10 parts, 100 parts and 1000 parts in advance; firstly, adding 10 parts of material A and 1 part of material B into a raw material tank 100; adding 100 parts of the material A and 11 parts of the mixed material (the mixed material of 10 parts of the material A and 1 part of the material B) into the raw material tank 100 again; finally, 1000 parts of material A and 111 parts of a mixed material (a mixed material of 110 parts of material A and 1 part of material B) were added into the material tank.
When the weight of the primary raw material in the raw material tank, namely 11 parts, reaches a primary raw material threshold value, opening a control valve of a first discharge port 11, a first-stage mixing tank feed port 101, a powder pump connected with the first discharge port 11 and a control switch of a first-stage mixing tank 10, and conveying the raw material in the raw material tank 100 into the first-stage mixing tank 10;
when the materials in the first-stage mixing tank 10 reach a primary mixing threshold value, closing the first feed opening 11, a control valve of the feed opening 101 of the first-stage mixing tank, a powder pump connected with the first feed opening 11 and a control switch of the first-stage mixing tank 10, stopping receiving the materials and starting primary mixing;
when the time threshold is reached and the weight of the secondary raw materials in the raw material tank 100, namely 100 parts, reaches the secondary raw material threshold, a control valve of a first-stage mixing tank discharge port 102, a second-stage mixing tank feed port 201, a control valve of a second feed port 12, an air blower 500 connected with the first-stage mixing tank 10, a powder pump connected with the second feed port 12 and a control switch of the second-stage mixing tank 20 are started, and the secondary raw materials in the raw material tank 100, namely 100 parts, and the primary mixed materials in the first-stage mixing tank 10, namely 11 parts, are simultaneously conveyed to the second-stage mixing tank 20;
when the materials in the secondary mixing tank 20 reach the secondary mixing threshold value, closing the control valves of the discharge port 102 of the primary mixing tank, the feed port 201 of the secondary mixing tank, the second feed port 12, the air blower 500 connected with the primary mixing tank 10 and the control switch of the powder pump connected with the second feed port 12, stopping receiving the materials and the mixed materials and starting secondary mixing;
when the time threshold is reached and the weight of the three-time raw materials in the raw material tank 100, namely 1000 parts, reaches the threshold of the three-time raw materials, control valves of a discharge port 202 of the second-stage mixing tank, a feed port 301 of the third-stage mixing tank and a third feed port 13, a powder pump connected with the third feed port 13 and a control switch of the third-stage mixing tank 30 are started, and the 1000 parts of the three-time raw materials in the raw material tank 100 and 111 parts of the materials secondarily mixed in the second-stage mixing tank 20 are simultaneously conveyed to the third-stage mixing tank 30;
when the materials in the third-stage mixing tank 30 reach the third-stage mixing threshold value, closing the control valves of the discharge port 202 of the second-stage mixing tank, the feed port 301 of the third-stage mixing tank, the third feed port 13 and the control switch of the powder pump connected with the third feed port 13, stopping receiving the raw materials and the mixed materials, and starting the third-stage mixing;
and when the time threshold is reached, closing a control switch of the third-stage mixing tank 30, and opening a discharge port 302 of the third-stage mixing tank to finish mixing, namely 1111 parts, and inputting the mixed materials into the finished product storage tank 800.
The bottom of the raw material tank 100 is provided with a weight detection and quantitative feeding system, the whole process of real-time monitoring and control are carried out on the production, and the finished product storage tank is provided with a weight detection device for feeding back the production result to a certain extent. Three pipelines are connected to head tank 100 bottom and are connected with the agitator tank of three difference through three dust pump, select three kinds of suitable horizontal agitator tanks of different capacity to make up according to the mode from small to big, add external control system, the switching order and the start-up time of each dust pump of autonomous control carry out effectual hierarchical stirring to the raw materials with this, upgrade ordinary single-stage stirring into the multistage stirring of throwing, make solid material mix more evenly.
Simultaneously the outside sets up wind-force system (adopt the air-blower in this scheme), and it is direct to be connected with dry ball, controls its drive gas's water content, under outside control system's management, carries out discontinuous type wind-force auxiliary transportation to the material in the agitator tank, and it is remaining to reduce the material in the agitator tank, can carry out agitator tank and pipeline's periodic cleaning simultaneously to guarantee the validity and the persistence of whole set of production flow. The effect can be the improvement of the yield, the quality, the precision and the efficiency; energy consumption, raw materials and working procedures are saved; the processing, operation, control, and use are simple and convenient.
The primary mixing tank is a 250 kg-grade stirring tank, the secondary mixing tank is a 2500 kg-grade stirring tank, the tertiary mixing tank is a 25 t-grade stirring tank, each grade of stirring is carried out for 20 minutes, each flow takes 1 hour, and the step-by-step uniform mixing is achieved through graded stirring. The gravity detection system can accurately control the feeding proportion, the electronic artificial components in the stirring work are reduced, the cost is reduced, and the work efficiency and the safety are improved. The wind power system can timely blow out materials which do not flow out, can ensure that the working process is not interrupted, and simultaneously reduces the failure rate.
The requirement of the admixture on the moisture content is strict, and the deliquescence of the admixture in the stirring process can be reduced to the maximum extent by arranging the drying tank in the wind power system.
Generally speaking, the stirring among solid powders is difficult to achieve uniformity, especially to reach the order of tens of tons of solid powders, even though the continuous stirring is carried out for several hours, the ideal mixing degree is difficult to achieve, so the multi-stage mixing system is developed, the materials with larger proportion are added after the previous stage of stirring is carried out uniformly, the mixing proportion is amplified step by step, and the stage stirring is carried out to achieve the gradual uniform mixing. The mixing efficiency which is far higher than that of the common single-stage stirring can be achieved by multi-stage stirring for only one hour. Compared with the prior art, the mixing period can be shortened to one tenth or even one tenth of the original period, and the mixing is more uniform.
When the main materials and the additives are mixed in one stage, a small amount of the main materials and the additives are added in equal proportion, the main materials and the additives are easy to be uniformly mixed due to small amount, the uniformly mixed mixing agent is continuously added to the next stage for mixing to achieve a better mixing effect, and the main materials and the additives can reach a hundred-ton grade through three-stage graded mixing, so that the basic requirements of common factories can be met.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (8)
1. A solid powder mixing system, comprising:
the raw material tank is used for storing materials to be mixed; the device is provided with a feed inlet, a first feed opening and a second feed opening;
the first-stage mixing tank is provided with a feeding hole, a discharging hole and a mixing hole, and the feeding hole is connected with the first discharging hole of the raw material tank;
the second-stage mixing tank is provided with a feeding hole, a discharging hole and a mixing hole, and the feeding hole is connected with a second discharging hole of the raw material tank; the mixing capacity is larger than that of the first-stage mixing tank;
conveyor, including the pipeline of connection between the first feed opening of head tank and one-level blending tank feed inlet, connect the pipeline between head tank second feed opening and second grade blending tank feed inlet, connect the pipeline between one-level blending tank discharge gate and second grade blending tank compounding mouth and install on each pipeline and install the powder drive arrangement on one-level blending tank compounding mouth.
2. The solid powder mixing system of claim 1, wherein the feed tank is further provided with a third feed opening; the solid powder mixing system further includes:
the third-stage mixing tank is provided with a feeding hole, a discharging hole and a mixing hole, and the feeding hole is connected with a third discharging hole of the raw material tank; the mixing capacity is larger than that of the secondary mixing tank;
the conveying device further comprises a pipeline and a powder driving device which are connected between a third feed opening of the raw material tank and a feed inlet of the third-stage mixing tank, and a pipeline and a powder driving device which are connected between a discharge opening of the second-stage mixing tank and a mixing opening of the third-stage mixing tank.
3. The solid powder mixing system of claim 2, wherein the powder drive is a powder pump or blower;
one-level blending tank, second grade blending tank, tertiary blending tank all include:
the tank body is used for providing a mixing cavity for materials; the top is provided with the feed inlet, and the bottom is provided with the discharge outlet;
the main shaft penetrates through the axial direction of the tank body, two ends of the main shaft are supported on the tank body and are rotatably connected with the tank body, and one end of the main shaft extends out of the tank body;
the spiral blade is fixed on the outer side of the main shaft in a spiral shape, is positioned in the mixing cavity of the tank body, and is used for stirring and mixing the materials along with the rotation of the main shaft and conveying the materials to a discharge port;
and the motor is used for providing power, and the output shaft is in transmission connection with one end of the main shaft extending out of the tank body.
4. The solid powder mixing system of claim 1, wherein the capacity of the secondary mixing tank is 10 times the capacity of the primary mixing tank.
5. The solid powder mixing system of claim 2, wherein the capacity of the tertiary mixing tank is 10 times the capacity of the secondary mixing tank.
6. The solid powder mixing system of claim 1, further comprising a drying device mounted on each conduit.
7. The solid powder mixing system of claim 1 or 4, further comprising a product storage tank and a monitoring unit, the monitoring unit comprising:
the gravity sensors are used for sensing weight information and sending the weight information to the controller and are respectively arranged at the bottoms of the raw material tank, the primary mixing tank and the secondary mixing tank;
the control switches are used for controlling the actions of the powder driving device, the first-stage mixing tank and the second-stage mixing tank under the triggering of the controller and are respectively and electrically connected with the powder driving device, the first-stage mixing tank and the second-stage mixing tank;
the control valves are respectively arranged at a feeding port, a first feed opening, a second feed opening, a feeding port and a discharging port of the primary mixing tank and a feeding port and a discharging port of the secondary mixing tank of the raw material tank;
the controller comprises a programmable controller or a singlechip, the input end of the controller is respectively connected with all the gravity sensors, and the output end of the controller is respectively connected with all the control switches and the control valves;
wherein the powder drive arrangement who is connected with one-level blending tank compounding mouth is the air-blower, and the powder drive arrangement who connects one-level blending tank and second grade blending tank and the powder drive arrangement who connects first feed opening, connects the second feed opening are the powder pump.
8. The solid powder mixing system of claim 2 or 5, further comprising a product storage tank and a monitoring unit, the monitoring unit comprising:
the gravity sensors are used for sensing weight information and sending the weight information to the controller and are respectively arranged at the bottoms of the raw material tank, the primary mixing tank, the secondary mixing tank and the tertiary mixing tank;
the control switches are used for controlling the action of the powder driving device under the triggering of the controller and are respectively electrically connected with the powder driving device;
the control valves are respectively arranged at a feed inlet, a first feed opening, a second feed opening and a third feed opening of the raw material tank, a feed inlet and a discharge opening of the primary mixing tank, a feed inlet and a discharge opening of the secondary mixing tank and a feed inlet and a discharge opening of the tertiary mixing tank;
the controller comprises a programmable controller or a singlechip, the input end of the controller is respectively connected with all the gravity sensors, and the output end of the controller is respectively connected with all the control switches and the control valves;
wherein the powder drive arrangement who is connected with the one-level blending tank alone is the air-blower, and the powder drive arrangement who connects the one-level blending tank and second grade blending tank and the powder drive arrangement who connects first feed opening, connects the second feed opening, connects the third feed opening are the powder pump.
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| CN202020329239.4U CN210434441U (en) | 2020-03-17 | 2020-03-17 | Solid powder mixing system |
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| CN202020329239.4U CN210434441U (en) | 2020-03-17 | 2020-03-17 | Solid powder mixing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731214A (en) * | 2021-09-15 | 2021-12-03 | 山东联达制药有限公司 | Medicine homogenizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731214A (en) * | 2021-09-15 | 2021-12-03 | 山东联达制药有限公司 | Medicine homogenizer |
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