Double-shaft humidifying stirring machine with dust suppression function and use method of double-shaft humidifying stirring machine

Abstract

The invention relates to the technical field of double-shaft stirring machines, and discloses a double-shaft stirring machine which comprises a stirring box, a feeding port is formed in the top of the stirring box, a rotary feeding valve is arranged at the top of the feeding port, and a discharging pipe is arranged on the right side of the stirring box. A stirring assembly is arranged in the stirring box, a driving device connected with the stirring assembly is arranged on the front side of the stirring box, a wetting device is arranged on the left side of the stirring box, and a controller is arranged on the left side of the stirring box. According to the double-shaft humidifying stirrer with the dust suppression function and the using method thereof, the spiral nozzles of the humidifying device are obliquely arranged in a staggered manner, and are matched with the shunting design of a U-shaped pipe and a concentrating pipe, so that water can be uniformly sprayed, and local over-wetting or drying is avoided; the flow sensor and the humidity sensor are linked with the controller, the water inflow can be dynamically adjusted, it is ensured that the humidity of materials reaches the standard, and dust raising and caking caused by improper humidity are reduced.

Description

Technical Field

[0001] This invention relates to the field of twin-shaft mixer technology, specifically to a twin-shaft humidifying mixer with dust suppression function and its usage method. Background Technology

[0002] In industrial production, the twin-shaft humidifying mixer is a key piece of equipment commonly used for humidifying dusty materials, and is widely used in industries such as power, metallurgy, and chemicals.

[0003] The main function of a twin-shaft mixer is to fully mix dry dusty materials with an appropriate amount of moisture through a mixing mechanism, so that the materials reach the specified humidity requirements, avoid dust generation during subsequent transportation and storage, and improve the flowability and processing performance of the materials. However, existing twin-shaft humidifying mixers have certain drawbacks in practical applications. For example, the humidification devices of some equipment spray unevenly, often resulting in localized over-humidification or localized dryness. Localized over-humidification can cause material to clump and block the discharge port, affecting the normal operating efficiency of the equipment. On the other hand, localized dryness cannot effectively suppress dust, and a large amount of dust will still be generated during mixing and discharging, which not only pollutes the working environment but may also harm the health of operators. Furthermore, it does not meet environmental emission standards. Therefore, a twin-shaft humidifying mixer with dust suppression function and its usage method are proposed to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a dual-shaft humidifying mixer with dust suppression function and its usage method. It has advantages such as dust suppression function and solves the problem of uneven spraying of humidification devices in some equipment, which often results in local over-wetting or local dryness. Local over-wetting can cause material to clump and block the discharge port, affecting the normal operation efficiency of the equipment; while local dryness cannot effectively suppress dust, and a large amount of dust will still be generated during the mixing and discharge process.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a dual-shaft humidifying mixer with dust suppression function, comprising a mixing chamber, a feed inlet at the top of the mixing chamber, a rotary feed valve at the top of the feed inlet, a discharge pipe on the right side of the mixing chamber, a mixing assembly inside the mixing chamber and a drive device connected to the mixing assembly at the front of the mixing chamber, a humidifying device on the left side of the mixing chamber, and a controller on the left side of the mixing chamber; The humidification device includes a water tank, which is located on the left side of the mixing tank. A water pump is located on the top of the water tank, and a water delivery pipe is located at the output end of the water pump. A U-shaped pipe is located between the left and right sides of the mixing tank. A central pipe is located on the top of the left and right inner walls of the mixing tank. Spiral nozzles are arranged obliquely and alternately on the opposite sides of the two central pipes.

[0006] Preferably, the outlet of the rotary feeder valve is connected to the feed inlet.

[0007] Preferably, the stirring assembly includes two rotating rods, which are rotatably mounted in a parallel shape inside the stirring tank, and blades are provided on the outer surface of both rotating rods.

[0008] Preferably, the driving device includes gears, one end of each of the two rotating rods passes through the front side of the mixing tank and is fixedly mounted with gears, the two gears mesh with each other, a support frame is provided on the front side of the mixing tank, a motor is provided on the front side of the support frame, and the output shaft of the motor is fixedly connected to one of the rotating rods through a coupling.

[0009] Preferably, polymerized carbonized resin plates are provided on the inner wall of the mixing tank and the inner wall of the feed inlet.

[0010] Preferably, the blade is made of polymerized carbonized resin wear-resistant sheet.

[0011] Preferably, the water inlet of the water pump is connected to the water supply tank, the end of the water delivery pipe away from the water pump is connected to the U-shaped pipe, and the opposite sides of the two central pipes are both connected to one end of the U-shaped pipe.

[0012] Preferably, the water supply pipe is equipped with a flow sensor and an inlet valve, with the detection end of the flow sensor extending into the interior of the water supply pipe. The discharge pipe is equipped with a humidity sensor and a discharge valve, with the detection end of the humidity sensor extending into the interior of the discharge pipe. The flow sensor, the inlet valve, the humidity sensor, and the discharge valve are all electrically connected to the controller.

[0013] A method for using a twin-shaft humidifying mixer with dust suppression function, comprising the above-mentioned method for using a twin-shaft humidifying mixer, the specific method of use is as follows: Step 1, Parameter Setting: Preset the target humidity value for material humidification and the initial flow range of the water supply pipe through the controller; Step 2, feeding operation: Add the material to be processed into the rotary feeder valve, start the rotary feeder valve, and the material enters the mixing tank through the feed port. During the feeding process, the polymerized carbonized resin plate on the inner wall of the feed port reduces material adhesion. Step 3, stirring and humidifying: Start the drive device, the motor drives the rotating rod to rotate, the two rotating rods rotate in opposite directions through gear meshing, and the blades stir the material; at the same time, start the water pump, open the water inlet valve, and the water in the water tank is delivered to the U-shaped pipe through the water supply pipe, then split into two central pipes, and finally sprayed out through the spiral nozzles at an angle and in an alternating manner to humidify the material evenly. Step 4, Process Control: The flow sensor detects the water flow rate in the water supply pipe in real time and transmits the data to the controller; the humidity sensor detects the humidity of the material at the discharge pipe in real time and also feeds the data back to the controller. When the detected material humidity is lower than the target value, the controller controls the water inlet valve to increase the opening and increase the water inlet flow; when the material humidity is higher than the target value, the controller reduces the opening of the water inlet valve and reduces the water inlet flow to ensure that the material humidity meets the preset requirements. Step 5, Discharge Operation: After the material has been stirred and humidified to the preset humidity, the controller opens the discharge valve and the material is discharged through the discharge pipe. Beneficial effects

[0014] Compared with the prior art, the present invention provides a dual-shaft humidifying mixer with dust suppression function and its usage method, which has the following beneficial effects: 1. The dual-shaft humidifying mixer with dust suppression function and its usage method: The spiral nozzles of the humidification device are arranged in an inclined and staggered manner, and the flow distribution design of the U-shaped pipe and the central pipe can achieve uniform water spraying and avoid local over-wetting or dryness; The flow sensor, humidity sensor and controller are linked to dynamically adjust the water intake to ensure that the material humidity meets the standard and reduce dust and caking caused by improper humidity.

[0015] 2. This dual-shaft humidifying mixer with dust suppression function and its usage method are described. Polymerized carbonized resin plates and blades made of polymerized carbonized resin wear-resistant material are installed on the inner wall of the mixing tank and at the feed inlet. Utilizing their non-stick and wear-resistant properties, the problem of dust accumulation and severe wear and corrosion on the blades inside the equipment is avoided. The use of 316L spiral nozzles improves corrosion resistance and atomization effect, avoiding secondary dust problems caused by uneven material discharge and uneven ash-water mixing, thus improving the working environment around the ash silo and increasing the operating efficiency of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the mixing tank of the present invention; Figure 3 This is a three-dimensional structural diagram of the humidification device of the present invention; Figure 4 This is a three-dimensional structural diagram of the feed inlet of the present invention; Figure 5This is a three-dimensional structural diagram of the stirring assembly and driving device of the present invention; Figure 6 For the present invention Figure 1 Enlarged view of the structure at point A in the middle.

[0017] In the diagram: 1. Mixing tank; 11. Polymerized carbonized resin plate; 2. Feed inlet; 3. Rotary feed valve; 4. Discharge pipe; 41. Humidity sensor; 42. Discharge valve; 5. Mixing assembly; 51. Rotating rod; 52. Blade; 6. Drive unit; 61. Gear; 62. Motor; 7. Humidification device; 71. Water tank; 72. Water pump; 73. Water delivery pipe; 74. U-shaped pipe; 75. Centralized pipe; 76. Spiral nozzle; 77. Flow sensor; 78. Inlet valve; 8. Controller. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-6 A dual-shaft humidifying mixer with dust suppression function includes a mixing tank 1, a feed inlet 2 at the top of the mixing tank 1, a rotary feed valve 3 at the top of the feed inlet 2, a discharge pipe 4 on the right side of the mixing tank 1, a mixing assembly 5 inside the mixing tank 1, a drive device 6 connected to the mixing assembly 5 at the front of the mixing tank 1, a humidifying device 7 on the left side of the mixing tank 1, and a controller 8 on the left side of the mixing tank 1.

[0020] The mixing tank 1 and the inner wall polymerized carbonized resin plate 11 serve as the core cavity for material mixing and humidification, providing a closed space to reduce dust spillage. The polymerized carbonized resin plate 11 lining the inner wall is 15mm thick. Utilizing its non-stick and wear-resistant properties, it prevents materials from adhering to and accumulating dust on the tank wall, reducing cleaning costs and keeping the mixing space clean. The polymerized carbonized resin material has a smooth surface and strong chemical stability, which can reduce the friction between the material and the tank wall, prevent dust from sticking and forming clumps, and resist wear caused by long-term erosion of ash, thus extending the service life of the equipment.

[0021] The feed inlet 2 is connected to the rotary feed valve 3 and the mixing tank 1, serving as a channel for material entry. The polymerized carbonized resin plate 11 on the inner wall further reduces material adhesion and lowers the probability of material retention in the channel, avoiding the impact of agglomeration and blockage on feeding efficiency. The rotary feed valve 3 controls the rate at which material enters the mixing tank 1.

[0022] The mixing assembly 5 includes two parallel rotating rods 51 and blades 52 on the outer surface. The blades are made of 30mm thick polymeric carbonized resin wear-resistant sheets. The rotating blades 52 shear and tumble the material, ensuring full contact between the material and moisture. The wear-resistant properties of the blades 52 made of polymeric carbonized resin extend their service life. The drive device 6 consists of two meshing gears 61 and a motor 62. The motor 62 drives one of the rotating rods 51 through a coupling, and the meshing gears 61 drive the other rotating rod 21 to rotate in the opposite direction. The relative motion generated by the reverse rotation improves the crushing and mixing efficiency of the material.

[0023] The humidification device 7 includes a water tank 71. The water tank 71 is located on the left side of the mixing tank 1. A water pump 72 is located on the top of the water tank 71. A water delivery pipe 73 is located at the output end of the water pump 72. A U-shaped pipe 74 is located between the left and right sides of the mixing tank 1. A central pipe 75 is located on the top of the left and right inner walls of the mixing tank 1. Spiral nozzles 76 are arranged obliquely and alternately on the opposite side of the two central pipes 75.

[0024] The spiral nozzles 76 are made of highly corrosion-resistant 316L material and are installed at an angle and staggered on the central pipe 75. The water flow is spiral-shaped, covering a wider range, and the multi-angle spray ensures that all areas of the material can be in contact with water. The U-shaped pipe 74 realizes symmetrical water flow distribution, ensuring that the water supply on the left and right sides of the central pipe 75 is consistent. The central pipe 75 evenly distributes the water flow to each spiral nozzle 76, avoiding local insufficient humidification caused by uneven water pressure. The flow sensor 77 and the water inlet valve 78 detect the water supply flow in real time and feed it back to the controller 8. The water volume is adjusted by adjusting the opening of the water inlet valve 78 to achieve closed-loop control. The problem of uneven humidification caused by the poor corrosion resistance and limited spray range of traditional nozzles is solved by material upgrades and structural optimization to achieve uniform and corrosion-resistant humidification.

[0025] The discharge pipe 4 conveys the processed material. A humidity sensor 41 and a discharge valve 42 are installed to monitor the final humidity of the material in real time and control the timing of discharge. The humidity sensor 41 detects the humidity of the material. If the humidity does not reach the target value, the controller 8 closes the discharge valve 42 and reopens it after adjustment to ensure the quality of the discharge.

[0026] The controller 8 receives signals from the flow sensor 77 and the humidity sensor 41, and automatically adjusts the opening of the water inlet valve 78 and the feeding rate according to the preset target humidity to achieve dynamic matching of humidity and water volume.

[0027] A method of using a dual-shaft humidifying mixer with dust suppression function, comprising employing the aforementioned dual-shaft humidifying mixer with dust suppression function, characterized in that the specific method of use is as follows: Step 1, parameter setting: Preset the target humidity value for material humidification and the initial flow range of water pipe 73 through controller 8; Step 2, feeding operation: Add the material to be processed into the rotary feeder valve 3, start the rotary feeder valve 3, and the material enters the mixing tank 1 through the feed inlet 2. During the feeding process, the polymerized carbonized resin plate 11 on the inner wall of the feed inlet 2 reduces the adhesion of the material. Step 3, stirring and humidifying: Start the drive device 6, the motor 62 drives the rotating rod 51 to rotate, the two rotating rods 51 rotate in opposite directions through the meshing of gear 61, and the blades 52 stir the material; at the same time, start the water pump 72, open the water inlet valve 78, the water in the water tank 71 is transported to the U-shaped pipe 74 through the water supply pipe 73, then distributed to two central pipes 75, and finally sprayed out at an angle and alternately through the spiral nozzles 76 to humidify the material evenly; Step 4, Process Control: Flow sensor 77 detects the water flow rate in water pipe 73 in real time and transmits the data to controller 8; humidity sensor 41 detects the humidity of the material at discharge pipe 4 in real time and also feeds the data back to controller 8. When the detected material humidity is lower than the target value, controller 8 controls the water inlet valve 78 to increase the opening and increase the water inlet flow; when the material humidity is higher than the target value, controller 8 reduces the opening of water inlet valve 78 and reduces the water inlet flow to ensure that the material humidity meets the preset requirements. Step 5, Discharge Operation: After the material has been stirred and humidified to reach the preset humidity, the controller 8 controls the opening of the discharge valve 42, and the material is discharged through the discharge pipe 4.

[0028] In summary, the dual-shaft humidifying mixer with dust suppression function and its usage method, with the spiral nozzles 76 of the humidification device 7 arranged in an inclined and staggered manner, combined with the diversion design of the U-shaped pipe 74 and the central pipe 75, can achieve uniform water spraying and avoid local over-wetting or dryness; the flow sensor 77, humidity sensor 41 and controller 8 are linked to dynamically adjust the water intake to ensure that the material humidity meets the standard and reduce dust and agglomeration caused by improper humidity.

[0029] Furthermore, polymerized carbonized resin plates 11 and blades 52 made of polymerized carbonized resin wear-resistant material are installed on the inner wall of the mixing tank 1 and at the feed inlet 2. Utilizing their non-stick and wear-resistant properties, the problem of dust accumulation and severe wear and corrosion on the blades 52 inside the equipment is avoided. The use of 316L spiral nozzles 76 improves corrosion resistance and atomization effect, avoids secondary dust problems caused by uneven material discharge and uneven mixing of ash and water, improves the working environment around the ash silo, and increases the operating efficiency of the equipment.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-shaft humidifying mixer with dust suppression function, comprising a mixing chamber (1), characterized in that: The mixing tank (1) is provided with a feed inlet (2) at the top, a rotary feed valve (3) at the top of the feed inlet (2), a discharge pipe (4) on the right side of the mixing tank (1), a mixing assembly (5) inside the mixing tank (1) and a drive device (6) connected to the mixing assembly (5) on the front side of the mixing tank (1), a humidification device (7) on the left side of the mixing tank (1), and a controller (8) on the left side of the mixing tank (1). The humidification device (7) includes a water tank (71). The water tank (71) is located on the left side of the mixing tank (1). A water pump (72) is located on the top of the water tank (71). A water delivery pipe (73) is located at the output end of the water pump (72). A U-shaped pipe (74) is located between the left and right sides of the mixing tank (1). A central pipe (75) is located on the top of the left and right inner walls of the mixing tank (1). Spiral nozzles (76) are arranged obliquely and alternately on the opposite side of the two central pipes (75).

2. The dual-shaft humidifying mixer with dust suppression function according to claim 1, characterized in that: The outlet of the rotary feed valve (3) is connected to the feed inlet (2).

3. A dual-shaft humidifying mixer with dust suppression function according to claim 1, characterized in that: The stirring assembly (5) includes two rotating rods (51). The two rotating rods (51) are mounted in a parallel rotation inside the stirring box (1). The outer surfaces of the two rotating rods (51) are provided with blades (52).

4. A dual-shaft humidifying mixer with dust suppression function according to claim 3, characterized in that: The drive device (6) includes gears (61). One end of each of the two rotating rods (51) passes through the front side of the mixing tank (1) and is fixedly mounted with gears (61). The two gears (61) mesh with each other. A support frame is provided on the front side of the mixing tank (1). A motor (62) is provided on the front side of the support frame. The output shaft of the motor (62) is fixedly connected to one of the rotating rods (51) through a coupling.

5. A dual-shaft humidifying mixer with dust suppression function according to claim 1, characterized in that: Polymerized carbonized resin plates (11) are provided on the inner wall of the mixing tank (1) and the inner wall of the feed inlet (2).

6. A dual-shaft humidifying mixer with dust suppression function according to claim 3, characterized in that: The blade (52) is made of polymerized carbonized resin wear-resistant sheet.

7. A dual-shaft humidifying mixer with dust suppression function according to claim 1, characterized in that: The water inlet of the water pump (72) is connected to the water supply tank (71), and the end of the water delivery pipe (73) away from the water pump (72) is connected to the U-shaped pipe (74). The two central pipes (75) are connected to one end of the U-shaped pipe (74) on opposite sides.

8. A dual-shaft humidifying mixer with dust suppression function according to claim 1, characterized in that: The water supply pipe (73) is equipped with a flow sensor (77) and an inlet valve (78). The detection end of the flow sensor (77) extends into the interior of the water supply pipe (73). The discharge pipe (4) is equipped with a humidity sensor (41) and a discharge valve (42). The detection end of the humidity sensor (41) extends into the interior of the discharge pipe (4). The flow sensor (77), the inlet valve (78), the humidity sensor (41), and the discharge valve (42) are all electrically connected to the controller (8).

9. A method of using a twin-shaft humidifying mixer with dust suppression function, comprising the method of using the twin-shaft humidifying mixer as described in any one of claims 1-8, characterized in that, The specific usage method is as follows: Step 1, parameter setting: preset the target humidity value for material humidification and the initial flow range of the water supply pipe (73) through the controller (8); Step 2, feeding operation: Add the material to be processed into the rotary feeder valve (3), start the rotary feeder valve (3), and the material enters the mixing tank (1) through the feed port (2). During the feeding process, the polymerized carbonized resin plate (11) on the inner wall of the feed port (2) reduces the adhesion of the material. Step 3, stirring and humidifying: Start the drive device (6), the motor (62) drives the rotating rod (51) to rotate, the two rotating rods (51) rotate in opposite directions through the meshing of gears (61), and the blades (52) stir the material; at the same time, start the water pump (72), open the water inlet valve (78), the water in the water tank (71) is transported to the U-shaped pipe (74) through the water delivery pipe (73), and then distributed to two central pipes (75), and finally sprayed out at an angle through the spiral nozzles (76) to humidify the material evenly; Step 4, process control: The flow sensor (77) detects the water flow rate in the water supply pipe (73) in real time and transmits the data to the controller (8); the humidity sensor (41) detects the humidity of the material at the discharge pipe (4) in real time and also feeds the data back to the controller (8). When the detected material humidity is lower than the target value, the controller (8) controls the water inlet valve (78) to increase the opening and increase the water inlet flow; when the material humidity is higher than the target value, the controller (8) reduces the opening of the water inlet valve (78) and reduces the water inlet flow to ensure that the material humidity meets the preset requirements. Step 5, discharge operation: After the material is stirred and humidified to reach the preset humidity, the controller (8) controls the opening of the discharge valve (42), and the material is discharged through the discharge pipe (4).

Images