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Gravimetric blender feeding metering device


source:[Gravimetric blender]   release time:2021-05-07 15:49:42




Manufacturing method of Gravimetric blender feeding metering device
【Technical Field】
[0001] The present utility model relates to the field of cement processing, especially a Gravimetric blender feeding metering device.
【Background technique】
[0002] In the cement production process, a calciner is needed. The stable feeding of the calciner to maintain the coal consumption of the calciner is particularly important for increasing the output of clinker. Continuously, accurately and stably feeding coal to the calciner is a stable heat. It is a key factor to reduce coal consumption, improve the quality of clinker production, and ensure equipment safety and continuous and stable operation. Therefore, the coal metering control device must have the characteristics of stability, accuracy, reliability, and rapid action. However, due to the good fluidity of pulverized coal, high requirements for air lock, and easy condensation, arching, collapse, etc., it is difficult to control the flow rate, which affects the working conditions of the calciner.
[0003] The present utility model is an improvement to solve the above problems.
[Utility model content]
[0004] The purpose of the utility model is to provide a Gravimetric blender feeding metering device that is simple to install and disassemble, convenient to maintain, reduce clogging, stable feeding, and cost-saving.
[0005] The technical solutions adopted by the utility model to solve its technical problems are:
[0006] The Gravimetric blender feeding metering device includes a material silo, an impeller feeding device and a mass flow meter. The lower end of the material silo is provided with an impeller feeding device, and a feed pipe is provided between the material silo and the impeller feeding device. The impeller feeding device is connected by a feeding pipe, and the material bin and the impeller feeding device are connected to the feeding pipe by flanges; the impeller feeding device is equipped with a built-in agitator, and the impeller feeding device is equipped with a regulator. Device, the lower end of the impeller feeding device is provided with a mass flowmeter, a discharge pipe is arranged between the impeller feeding device and the mass flowmeter, and the impeller feeding device and the mass flowmeter are connected through the discharge pipe; the mass flowmeter The lower end of the elbow is provided with a conveying pipe, a elbow is provided between the mass flow meter and the conveying pipe, the upper end of the elbow is connected with the mass flow meter, and the lower end of the elbow is connected with the conveying pipe; one side of the conveying pipe is provided with a fan through which the fan passes The nozzle is connected with the conveying pipe. The nozzle is located between the fan and the conveying pipe. The nozzle is installed on the conveying pipe; one side of the impeller feeding device is provided with a pneumatic tube, one end of the pneumatic tube is connected with the impeller feeding device, and the other end of the pneumatic tube Connected to the nozzle;
[0007] Further, a flange connection is adopted between the impeller feeding device and the mass flow meter and the discharge pipe;
[0008] A flange connection is adopted between the mass flow meter and the conveying pipe and the elbow;
[0009] Among them, the flange is also called flange flange or flange. Flanges are the interconnecting parts between pipes and pipes and are used for connection between pipe ends; flanges are also used at the inlet and outlet of equipment to connect between two equipment.
[0010] Flange connection is to fix two pipes, pipe fittings or equipment on a flange first, then add a flange gasket between the two flanges, and finally connect the two flanges with bolts A detachable joint that is tightened so that it is tightly combined.
[0011] The mass flow meter is a novel instrument that directly and accurately measures the mass flow of fluids. The main structure adopts two U-shaped tubes side by side, so that the bending parts of the two tubes vibrate slightly towards each other, and the two sides The straight pipes will vibrate, that is, they will move closer together or open at the same time, that is, the vibrations of the two pipes are synchronized and symmetrical.
[0012] The working principle is: when the material enters the impeller feeding device from the material silo, it is first fully fluidized through the built-in agitator to make it unblocked, and the impeller feeding device realizes stable feeding, and enters the mass flow meter to be measured. It enters the conveying pipeline and is conveyed to the kiln head or decomposition furnace.
[0013] The advantages of this utility model are:
[0014] 1. Flange connection between the impeller feeding device and the mass flowmeter and the discharge pipe, the mass flowmeter and the conveying pipe and the elbow are connected by flanges, no other mounting brackets are required, the installation height is low, and the installation It is easy to disassemble, easy to maintain, and has good sealing performance, which can maintain the environment under the material warehouse.
[0015] 2. The impeller feeding device is equipped with a built-in agitator, which can fluidize the material, so that the material enters the impeller feeding device smoothly, reducing blockage; the lower end of the impeller feeding device is equipped with an adjusting device, which can be adjusted The speed of the impeller realizes the stable feeding of the impeller feeding device.
[0016] 3. An air pressure tube is provided between the nozzle and the impeller feeding device, and the air pressure tube can apply air pressure to the impeller feeding device, so that the feeding is smoother, without a separate screw pump, which saves costs.
[0017] 4. Nozzles are provided on the conveying pipeline. The application of the nozzles makes it unnecessary to use screw pumps and other air-locking elastic devices at the outlet of the flowmeter, and can reduce the power of the fan and save costs.

[0018] The structure diagram of the Gravimetric blender feeding metering device proposed by the present utility model.
Gravimetric blender
【Detailed ways】
[0019] In order to make the technical means, creative features, objectives and effects of the present utility model easy to understand, the present utility model is further explained in conjunction with specific embodiments below.
[0020] Referring to Figure 1, the Gravimetric blender feeding metering device includes a material bin 1, an impeller feeding device 2 and a mass flow meter 3. The lower end of the material bin 1 is provided with an impeller feeding device 2, the material bin 1 and the impeller feeding A feed pipe 5 is provided between the devices 2, and the material silo I and the impeller feeding device 2 are connected by the feed pipe 5, and the material silo I and the impeller feeding device 2 are connected to the feed pipe 5 by flanges respectively. The impeller feeding device 2 is provided with a built-in agitator 4, the impeller feeding device 2 is provided with an adjusting device 21, the lower end of the impeller feeding device 2 is provided with a mass flow meter 3, an impeller feeding device 2 and a mass flow meter 3 A discharge pipe 10 is provided between the impeller feeding device 2 and the mass flow meter 3 through the discharge pipe 10; the lower end of the mass flow meter 3 is provided with a conveying pipe 6, which is one of the mass flow meter 3 and the conveying pipe 6. An elbow 11 is arranged between the elbows, the upper end of the elbow 11 is connected with the mass flow meter 3, and the lower end of the elbow 11 is connected with the conveying pipe 6; a fan 7 is arranged on one side of the conveying pipe 6, and the fan 7 is connected to the conveying pipe 6 through a nozzle 8 The nozzle 8 is located between the fan 7 and the conveying pipe 6, and the nozzle 8 is installed on the conveying pipe 6. One side of the impeller feeding device 2 is provided with a pneumatic tube 9, and one end of the pneumatic tube 9 is connected to the impeller feeding device 2. The other end of the pneumatic tube 9 is connected to the nozzle 8;
[0021] In this embodiment, the impeller feeding device 2 and the mass flow meter 3 and the discharge pipe 10 are connected by flanges;
[0022] A flange connection is adopted between the mass flow meter 3 and the conveying pipe 6 and the elbow 11;
[0023] Among them, the flange is also called flange flange or flange. Flanges are the interconnecting parts between pipes and pipes and are used for connection between pipe ends; flanges are also used at the inlet and outlet of equipment to connect between two equipment.
[0024] Flange connection is to fix two pipes, fittings or equipment on a flange first, then add a flange gasket between the two flanges, and finally use bolts to connect the two flanges A detachable joint that is tightened so that it is tightly combined.
[0025] The mass flow meter is a novel instrument that directly and precisely measures the mass flow of fluids. The main structure adopts two U-shaped tubes side by side, so that the bending parts of the two tubes vibrate slightly towards each other. The straight pipes will vibrate, that is, they will move closer together or open at the same time, that is, the vibrations of the two pipes are synchronized and symmetrical.
[0026] When the material enters the impeller feeding device from the material warehouse, it is first fully fluidized through the built-in agitator to make it unblocked, and the impeller feeding device realizes stable feeding, enters the mass flow meter and enters the conveying pipeline after being measured. Transport to the kiln head or calciner;
[0027] The impeller feeding device and the mass flow meter are connected with the discharge pipe by a flange connection, and the mass flow meter and the conveying pipe are connected with the elbow by a flange connection. No other mounting brackets are required. The installation height is low. Installation and disassembly Simple, convenient maintenance, good sealing, and can maintain the environment under the material warehouse; the impeller feeding device is equipped with a built-in agitator, which can fluidize the material, so that the material can enter the impeller feeding device smoothly, reducing blockage; The lower end of the impeller feeding device is equipped with an adjusting device, which can adjust the speed of the impeller to realize the stable feeding of the impeller feeding device; there is an air pressure tube between the nozzle and the impeller feeding device, and the air pressure tube can apply air pressure to the impeller feeding device. , Make the feeding more smooth, no need to set up a separate spiral pump, saving costs; nozzles are set on the conveying pipeline, and the application of the nozzles can make the flowmeter outlets do not need to use spiral pumps and other air-locking elastic devices, and can reduce the power of the fan .
[0028] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the industry should understand that the present utility model is not limited by the foregoing embodiments. The foregoing embodiments and descriptions only illustrate the principles of the present utility model, and the present utility model does not deviate from the spirit and scope of the present utility model. There will be various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.
【Sovereignty Item】
1. Gravimetric blender feeding metering device, including material bin (I), impeller feeding device (2) and mass flow meter (3), characterized in that the lower end of the material bin (I) is provided with an impeller feeding device (2), A feed pipe (5) is arranged between the material bin (I) and the impeller feeding device (2). The material bin ⑴ and the impeller feeding device (2) are connected by the feed pipe (5), and the material bin ⑴ and The impeller feeding device (2) and the feeding pipe (5) are respectively connected by flanges; the impeller feeding device (2) is provided with a built-in agitator (4), and the impeller feeding device (2) is provided with an adjustment In the device (21), the lower end of the impeller feeding device (2) is provided with a mass flow meter (3), and a discharge pipe (10) is provided between the impeller feeding device (2) and the mass flow meter (3). The material device (2) and the mass flow meter (3) are connected by a discharge pipe (10); the lower end of the mass flow meter (3) is provided with a conveying pipe (6), a mass flow meter (3) and a conveying pipe (6) An elbow (11) is arranged between the elbow, the upper end of the elbow (11) is connected with the mass flow meter (3), and the lower end of the elbow (11) is connected with the conveying pipe (6); one side of the conveying pipe (¢) is provided with The fan (7), the fan (7) is connected to the conveying pipe (6) through the nozzle ⑶, the nozzle ⑶ is located between the fan (7) and the conveying pipe (6), the nozzle (8) is installed on the conveying pipe (6); the impeller One side of the feeding device (2) is provided with a pneumatic tube (9), one end of the pneumatic tube (9) is connected with the impeller feeding device (2), and the other end of the pneumatic tube (9) is connected with the nozzle (8). 2. The Gravimetric blender feeding metering device according to claim 1, characterized in that a flange connection is adopted between the impeller feeding device (2) and the mass flow meter (3) and the discharge pipe (10). 3. The Gravimetric blender feeding metering device according to claim 1, characterized in that a flange connection is adopted between the mass flow meter (3) and the conveying pipe (6) and the elbow (11).
[Patent Abstract] Gravimetric blender feeding metering device, including material silo, impeller feeding device and mass flow meter, the lower end of the material silo is provided with an impeller feeding device, and a feed tube is set between the material silo and the impeller feeding device; the impeller feeding A built-in agitator is installed in the feeding device, an adjusting device is arranged on the impeller feeding device, a mass flow meter is arranged at the lower end of the impeller feeding device; a conveying pipeline is arranged at the lower end of the mass flow meter, and the mass flow meter is arranged between the conveying pipeline There are elbows; one side of the conveying pipe is equipped with a fan, and the nozzle is installed on the conveying pipe; one side of the impeller feeding device is equipped with an air pressure pipe; the impeller feeding device is equipped with a built-in agitator to fluidize the material , So that the material can enter the impeller feeding device smoothly, reducing blockage; the lower end of the impeller feeding device is equipped with an adjusting device, which can adjust the speed of the impeller to realize the stable feeding of the impeller feeding device.[Gravimetric blender]