Stirring device for sintering machine head ash slurry
By designing a stirring device for sintering head slurry, including a double-shaft mixer body and pre-mix assembly, and using anti-spill shell and water injection assembly, the automatic premix and water addition of sintering head ash is achieved, which solves the problem of dust spillage during the stirring process and significantly reduces the degree of pollution.
Patent Information
- Application Number
- CN202421290796.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-06
AI Technical Summary
During the stirring of the sintering machine head ash, a large amount of dust spills into the surrounding environment, resulting in a high degree of pollution.
A stirring device for sintering head slurry is designed, including a double-shaft mixer body and pre-mixing assembly, and adopts an anti-spill shell and water injection assembly to realize automatic pre-mixing and water addition of sintering head ash to reduce dust spillage.
Through the automated premix and water addition process, the amount of dust spillage is effectively reduced, the degree of pollution is significantly reduced, and the dust spillage caused by the sintering machine head ash during the traditional stirring process is avoided.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sintering machine head ash processing, in particular to a stirring device for sintering machine head ash slurry. Background Art
[0002] Sintering machine head ash: refers to the dust captured by the electrostatic precipitator when the sintering flue gas passes through the large flue during the sintering process.
[0003] In recent years, both the steel industry and the environmental protection industry have been looking for new ways to utilize sintering machine head ash, mainly including leaching to extract potassium chloride to make potash fertilizer, magnetic separation to select iron, flotation to extract lead, high-temperature reduction to separate iron and chloride, gravity separation + magnetic separation to extract iron, and the combined use of various processes, and have achieved some results.
[0004] Before the flotation process, the sintering machine head ash needs to be mixed. The process is to first complete the injection and wetting of the sintering machine head ash powder in the loader, and then manually mix the sintering machine head ash into several scattered block materials. Then the loader moves to transfer the blocky sintering machine head ash and inject it into the double-shaft mixer with an open upper end for secondary mixing. During the mixing process, 1.5 times the amount of water as the sintering machine head ash is manually added to the double-shaft mixer to make the sintering machine head ash slurry. In this process, whether it is mixing the sintering machine head ash in the loader or adding the sintering machine head ash to the double-shaft mixer, a large amount of dust will overflow into the surrounding environment, and the amount of overflowing dust needs to be reduced. Utility Model Content
[0005] The purpose of the utility model is to solve the problems raised in the above background technology, and then proposes a stirring device for sintering machine head ash slurry.
[0006] The technical solution adopted by the utility model to solve its technical problems is:
[0007] A stirring device for sintering machine head ash slurry comprises a twin-shaft mixer body and a premixing component, a discharge channel is opened on the twin-shaft mixer body and a first solenoid valve is arranged on the discharge channel, an overflow prevention shell is arranged on the twin-shaft mixer body, a premixing box and a water injection component connected to the interior of the twin-shaft mixer body are arranged on the overflow prevention shell, a feed hopper, a dust suction fan, a discharge port and a vibration motor are arranged on the premixing box, the dust suction fan is located on one side of the feed hopper and a filter is arranged on the dust suction fan, the discharge port is connected to the interior of the overflow prevention shell and a second solenoid valve is arranged on the discharge port, and a premixing component is arranged inside the premixing box.
[0008] After the premixing of the sintering machine head ash is completed, the device can automatically pass it into the double-shaft mixer without the need for a loader to transfer it, and then automatically carry out the water adding process. After the water adding is completed, it is stirred twice to become mud. At the same time, during the premixing process, the amount of dust overflowing into the surrounding environment can be effectively reduced, and the pollution degree is greatly reduced. With the help of the anti-overflow shell, the phenomenon of dust overflowing during the process of passing the sintering machine head ash from the premixing box into the double-shaft mixer body is further avoided.
[0009] Furthermore, the water injection assembly includes a water injection pipe, a nozzle, a water injection pump and a water tank. The anti-overflow shell is provided with a water injection pipe, the water injection pipe is provided with a plurality of nozzles located inside the anti-overflow shell and the water injection pipe is connected to the water injection pump, and the water injection pump is connected to the water tank.
[0010] Furthermore, the anti-overflow shell is made of transparent material.
[0011] The above scheme can realize automatic water injection into the twin-shaft mixer body through the water injection component, and can also settle all the dust inside the anti-overflow shell. At the same time, when the sintering machine head ash is not being stirred and slurried, the inside of the twin-shaft mixer body can also be flushed and cleaned through the water injection component. The functions are more diverse. The anti-overflow shell is made of transparent material, which makes it convenient for the staff to intuitively check the operating conditions inside the twin-shaft mixer body.
[0012] Furthermore, it also includes a first conveying pipe and a second conveying pipe, one end of the first conveying pipe is connected to a powder conveying pump, one end of the second conveying pipe is connected to a water pump, the powder conveying pump is connected to the ash bin of the sintering machine head, the water pump is connected to the water tank, and the output ends of the first conveying pipe and the second conveying pipe are both above the feed hopper.
[0013] The above scheme realizes automatic addition of sintering machine head ash and water into the premixing box through the powder delivery pump and the water pump, thereby reducing the labor intensity of manual feeding.
[0014] Furthermore, a mud pump is provided on the main body of the twin-shaft mixer, the mud pump is connected to a material receiving shell and communicated with the material receiving shell, and the material receiving shell is communicated with a discharge channel.
[0015] The above scheme can automatically transport the sintering machine head ash slurry discharged after stirring to the next area for further processing through the mud pump and the material receiving shell.
[0016] Furthermore, an inclined platform is symmetrically arranged at the inner bottom end of the double-shaft mixer body.
[0017] The above scheme can effectively reduce the probability of the sintering machine head ash slurry remaining inside the double-shaft mixer body after the second mixing is completed by using the inclined table in combination with the vibration motor.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] Compared with the prior art, after the premixing of the sintering machine head ash is completed, the device can automatically pass it into the twin-shaft mixer without the need for a loader to transfer it, and then automatically carries out the water adding process. After the water adding is completed, it is stirred for the second time to become mud. At the same time, during the premixing process, the amount of dust overflowing into the surrounding environment can be effectively reduced, and the degree of pollution is greatly reduced. With the help of the anti-overflow shell, the phenomenon of dust overflow during the process of passing the sintering machine head ash from the premixing box into the twin-shaft mixer body is further avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0021] Figure 2 for Figure 1 A partial enlarged view of the label A;
[0022] Figure 3 A schematic diagram of the positions between the first conveying pipe and the second conveying pipe and the feed hopper;
[0023] Reference numerals:
[0024] 1. Premixing box; 11. Feed hopper; 12. Premixing assembly; 13. Discharge port; 14. Second solenoid valve; 15. Vibration motor; 16. Dust suction fan; 17. Filter; 2. Double-shaft mixer body; 21. Anti-overflow shell; 22. Inclined platform; 23. Discharge channel; 24. First solenoid valve; 31. First conveying pipe; 32. Second conveying pipe; 41. Water injection pipe; 42. Nozzle; 43. Water injection pump; 44. Water tank; 5. Mud pump; 6. Receiving shell. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:
[0026] like Figures 1 to 3As shown, a stirring device for sintering machine head ash slurry includes a twin-shaft mixer body 2 and a premixing component 12, the premixing component 12 includes a driving motor, a rotating shaft and a plurality of stirring rods of different lengths, the premixing component 12 belongs to the prior art means and is not described and is shown in the figure without a number, a discharge channel 23 is opened on the twin-shaft mixer body 2 and a first solenoid valve 24 is arranged on the discharge channel 23, an anti-overflow shell 21 is arranged on the twin-shaft mixer body 2, a premixing box 1 and a water injection component connected to the interior of the twin-shaft mixer body 2 are arranged on the anti-overflow shell 21, a feed hopper 11, a dust suction fan 16, a discharge port 13 and a vibration motor 15 are arranged on the premixing box 1, the dust suction fan 16 is on one side of the feed hopper 11 and a filter screen 17 is arranged on the dust suction fan 16, the discharge port 13 is connected to the interior of the anti-overflow shell 21 and a second solenoid valve 14 is arranged on the discharge port 13, and a premixing component 12 is arranged inside the premixing box 1.
[0027] Specifically, the water injection assembly includes a water injection pipe 41, a nozzle 42, a water injection pump 43 and a water tank 44. The anti-overflow shell 21 is provided with a water injection pipe 41, and the water injection pipe 41 is provided with a plurality of nozzles 42 located inside the anti-overflow shell 21, and the water injection pipe 41 is connected to a water injection pump 43, and the water injection pump 43 is connected to a water tank 44; the above-mentioned embodiment scheme is further optimized, and the anti-overflow shell 21 is made of transparent material; the anti-overflow shell 21 is made of transparent material to facilitate the staff to intuitively check the operating conditions inside the dual-axis mixer body 2.
[0028] Further refinement of the embodiment of the present utility model is as follows: Figure 1 As shown, an inclined platform 22 is symmetrically arranged at the inner bottom of the double-shaft mixer body 2; the inclined platform 22 cooperates with the vibration motor 15 to effectively reduce the probability of the sintering head ash slurry remaining inside the double-shaft mixer body 2 after the second mixing is completed.
[0029] It should be noted that the twin-shaft mixer body 2, the premixing assembly 12, the first solenoid valve 24, the water injection pump 43, the dust suction fan 16, the vibration motor 15 and the second solenoid valve 14 are all electrically connected to the controller, which is not shown in the figure.
[0030] The workflow of this utility model:
[0031] First, sintering machine head ash powder and water are added into the premixing box 1 in sequence. The proportion of the two is calculated and weighed in advance. After the addition is completed, the controller controls the premixing component 12 to start mixing the two. When the two are premixed, the sintering machine head ash can be presented in block form. Then the controller controls the second solenoid valve 14 to open. At this time, the block sintering machine head ash can be injected into the double-shaft mixer body 2 in coordination with the vibration motor 15. After the sintering machine head ash in the premixing box 1 is added to the double-shaft mixer body 2, the controller controls the water injection pump 43 to work and then injects water into the double-shaft mixer body 2 through the nozzle 42. At this time, the water is about 1.5 times the sintering machine head ash. In the initial state, the first solenoid valve 24 is in a closed state. When the block material enters the double-shaft mixer body 2 and the water is added, the secondary mixing process can be started. The purpose of this mixing is to turn the sintering machine head ash into slurry.
[0032] The dust generated during the mixing process of the premixing box 1 will overflow from the feed hopper 11. At this time, the dust suction fan 16 can work to adsorb the dust on the filter screen 17, and the filter screen 17 can be cleaned or replaced later;
[0033] It should be noted that, when the twin-shaft mixer body 2 is performing secondary mixing and slurrying of the previous batch of sintering machine head ash materials, the second solenoid valve 14 is closed, and then the humidification premixing process of the next batch of sintering machine head ash materials can be started in the premixing box 1. When the sintering machine head ash in the twin-shaft mixer body 2 is completely mixed and slurried, the controller immediately controls the first solenoid valve 24 to open, so that the sintering machine head ash slurry can be discharged, and then subsequent flotation or other processing processes can be carried out. A small amount of dust will be generated when feeding from the premixing box 1 into the twin-shaft mixer body 2. Due to the presence of the anti-overflow shell 21, this part of the dust will not flow into the external environment, and all the dust can be settled during the subsequent water injection. At the same time, when the mixing and slurrying operation of the sintering machine head ash is not being performed, the inside of the twin-shaft mixer body 2 can be flushed and cleaned by the water injection component, and the functions are more diverse.
[0034] Compared with the prior art, after the premixing of the sintering machine head ash is completed, the device can automatically pass it into the twin-shaft mixer without the need for a loader to transfer it, and then automatically carries out the water adding process. After the water adding is completed, it is stirred for the second time to become mud. At the same time, during the premixing process, the amount of dust overflowing into the surrounding environment can be effectively reduced, and the degree of pollution is greatly reduced. With the help of the anti-overflow shell, the phenomenon of dust overflow during the process of passing the sintering machine head ash from the premixing box into the twin-shaft mixer body is further avoided.
[0035] In some embodiments, Figure 3As shown, the device also includes a first conveying pipe 31 and a second conveying pipe 32, one end of the first conveying pipe 31 is connected to a powder conveying pump, one end of the second conveying pipe 32 is connected to a water pump, the powder conveying pump is connected to the sintering machine head ash bin, the water pump is connected to the water tank, the output ends of the first conveying pipe 31 and the second conveying pipe 32 are both above the feed hopper 11, the powder conveying pump, the water pump, the sintering machine head ash bin and the water tank are all shown in the figure; this embodiment realizes the automatic addition of sintering machine head ash and water into the premixing box 1 through the powder conveying pump and the water pump, thereby reducing the labor intensity of manual feeding.
[0036] In other embodiments, Figure 1 As shown, a mud pump 5 is provided on the double-shaft mixer body 2, and the mud pump 5 is connected to the material receiving shell 6 and is communicated with the material receiving shell 6, and the material receiving shell 6 is communicated with the discharge channel 23; this embodiment can automatically transport the sintering head ash discharged after the mixing is completed to the next area for deep processing through the mud pump 5 and the material receiving shell 6, and the next step can be flotation or other processes.
[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A stirring device for sintering machine head ash slurry, comprising a double-shaft mixer body (2) and a premixing assembly (12), wherein the double-shaft mixer body (2) is provided with a discharge channel (23) and a first solenoid valve (24) is provided on the discharge channel (23), characterized in that: The double-shaft mixer body (2) is provided with an anti-overflow shell (21), the anti-overflow shell (21) is provided with a premixing box (1) and a water injection component connected to the interior of the double-shaft mixer body (2), the premixing box (1) is provided with a feed hopper (11), a dust suction fan (16), a discharge port (13) and a vibration motor (15), the dust suction fan (16) is located at one side of the feed hopper (11) and a filter screen (17) is provided on the dust suction fan (16), the discharge port (13) is connected to the interior of the anti-overflow shell (21) and a second solenoid valve (14) is provided on the discharge port (13), and a premixing component (12) is provided inside the premixing box (1).
2. A stirring device for sintering machine head mortar slurry according to claim 1, characterized in that: The water injection assembly comprises a water injection pipe (41), a nozzle (42), a water injection pump (43) and a water tank (44); the anti-overflow shell (21) is provided with a water injection pipe (41); a plurality of nozzles (42) located inside the anti-overflow shell (21) are provided on the water injection pipe (41); the water injection pipe (41) is connected to the water injection pump (43); and the water injection pump (43) is connected to the water tank (44).
3. A stirring device for sintering machine head mortar slurry according to claim 2, characterized in that: The anti-overflow shell (21) is made of transparent material.
4. A stirring device for sintering machine head mortar slurry according to claim 1, characterized in that: It also includes a first conveying pipe (31) and a second conveying pipe (32), one end of the first conveying pipe (31) is connected to a powder conveying pump, one end of the second conveying pipe (32) is connected to a water pump, the powder conveying pump is connected to the ash bin of the sintering machine head, and the water pump is connected to the water tank, and the output ends of the first conveying pipe (31) and the second conveying pipe (32) are both located above the feed hopper (11).
5. A stirring device for sintering machine head mortar slurry according to claim 1, characterized in that: The double-shaft mixer body (2) is provided with a mud pump (5), the mud pump (5) is connected to a material receiving shell (6) and communicates with the material receiving shell (6), and the material receiving shell (6) is communicated with a discharge channel (23).
6. A stirring device for sintering machine head mortar slurry according to claim 1, characterized in that: An inclined platform (22) is symmetrically arranged at the inner bottom end of the double-shaft mixer body (2).