Ash conveying automatic cutting device for raw material bin

Abstract

The utility model provides an automatic ash conveying cut-off device for a raw material bin, which relates to the field of intelligent ash conveying equipment for the raw material bin and comprises the raw material bin and a totally-enclosed tank car, a bin top dust remover communicated with the inside of the raw material bin is arranged at the top of the raw material bin, and the totally-enclosed tank car is communicated with pneumatic conveying equipment which is communicated with a conveying pipe. One end of the conveying pipe penetrates through the raw material bin and extends into the raw material bin, and a first electromagnetic valve is arranged on the conveying pipe; when the amount of ash conveyed into the raw material bin reaches the preset stacking detection height, the device can trigger a signal to automatically cut off a nitrogen source to stop the ash conveying process, at the moment, the phenomenon that the raw material bin is full is eradicated, the probability of dust escape at the top of the bin is greatly reduced, and the production efficiency is improved. Meanwhile, a dust collecting bag in the bin top dust collector is not prone to being damaged any more, then the replacement and maintenance frequency is reduced, the closed dust conveying effect is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of intelligent ash conveying equipment for raw material bins, and in particular to an automatic ash conveying cutting device for raw material bins. Background Art

[0002] At present, in order to realize the fully enclosed transportation of powdery materials such as dust removal ash, fully enclosed tank trucks are generally used for transportation. When the fully enclosed tank truck unloads ash into the raw material bin, nitrogen is used as the power source and pneumatic conveying equipment is used to transfer the ash to the raw material bin. A silo top dust collector is installed on the top of the raw material bin to suck the dust generated in the raw material bin during the ash transfer process. Due to the high nitrogen pressure during ash transfer, if the raw material bin is full and continues to supply air for ash transfer, it is easy to cause dust leakage from the silo top. At the same time, the bag of the silo top dust collector is easily damaged after the bin is filled, which increases the frequency of maintenance.

[0003] In summary, the existing ash transfer method cannot intelligently control the amount of powdered material added, which can easily cause dust leakage from the silo top dust collector. In addition, when the raw material silo is full, it is easy to cause damage to the dust collector bags, which increases the frequency of dust collector bag replacement and greatly increases maintenance costs. The use effect of the ash transfer equipment needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then proposes an automatic ash-transfer cutting device for a raw material bin.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An automatic ash-transfer cutting device for a raw material silo comprises a raw material silo and a fully enclosed tank truck, a silo top dust collector connected to the interior of the raw material silo is arranged on the top of the raw material silo, the fully enclosed tank truck is connected to a pneumatic conveying device, the pneumatic conveying device is connected to a conveying pipe, one end of the conveying pipe extends through the raw material silo to the interior, a first solenoid valve is arranged on the conveying pipe, a detection switch electrically connected to the first solenoid valve and located below the conveying pipe is arranged in the raw material silo, and also comprises two sound and light alarms respectively located at the ash unloading place of the fully enclosed tank truck and on the job operation platform, and the two sound and light alarms are electrically connected to the detection switch.

[0007] When the amount of ash transferred into the raw material bin reaches a preset accumulation detection height, the device will immediately trigger a signal to automatically cut off the nitrogen source and stop the ash transfer process. At this time, the phenomenon of the raw material bin being full is eliminated, and the probability of dust escape from the bin top is greatly reduced. At the same time, the dust collection bags inside the dust collector on the bin top are no longer easily damaged, and the frequency of replacement and maintenance is reduced. The effect of closed ash transfer is improved and the service life of the device is extended.

[0008] Furthermore, the detection switch adopts a material level meter.

[0009] Furthermore, an ultrasonic material level sensor is also arranged at the inner top of the raw material bin, and a second solenoid valve electrically connected to the ultrasonic material level sensor is arranged on the conveying pipe.

[0010] The above scheme is a backup emergency measure. That is, if the level meter fails, if the accumulation height of the powder is higher than the detection height of the level meter but the level meter cannot feedback the signal normally, the ultrasonic level sensor can also perform auxiliary detection and control the second solenoid valve to close immediately to avoid the full warehouse phenomenon, thereby further reducing safety hazards.

[0011] Furthermore, a transparent observation window is provided on the raw material bin.

[0012] Furthermore, a vibration motor is provided on the raw material bin.

[0013] The above scheme can check the stacking density of the powder in the raw material bin through the transparent observation window after completing the automatic ash transfer to the raw material bin. If the stacking is not dense enough, the vibration motor can be started to assist in compaction. If the material stacking height is reduced after compaction, the material can be replenished for a second time to the maximum material level.

[0014] Furthermore, one end of the conveying pipe inside the raw material bin is tilted downward and has an inclination angle of 35-45 degrees.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Compared with the prior art, when the amount of ash transferred into the raw material bin reaches a preset stacking detection height, the device will immediately trigger a signal to automatically cut off the nitrogen source and stop the ash transfer process. At this time, the phenomenon of the raw material bin being full is eliminated, and the probability of dust escape from the bin top is greatly reduced. At the same time, the dust bags inside the dust collector on the bin top are no longer easily damaged, and the frequency of replacement and maintenance is reduced. The effect of closed ash transfer is improved and the service life of the device is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a transparent observation window;

[0019] Reference numerals:

[0020] 1. Raw material warehouse; 11. Detection switch; 12. Conveying pipe; 13. First solenoid valve; 14. Transparent observation window; 2. Dust collector on warehouse top; 3. Ultrasonic material level sensor; 4. Second solenoid valve; 5. Vibration motor. DETAILED DESCRIPTION

[0021] 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:

[0022] like Figure 1 and Figure 2 As shown, an automatic ash-transfer cutting device for a raw material silo comprises a raw material silo 1 and a fully enclosed tank truck. A silo top dust collector 2 connected to the interior of the raw material silo 1 is arranged on the top of the raw material silo 1, the fully enclosed tank truck is connected to a pneumatic conveying device, the pneumatic conveying device is connected to a conveying pipe 12, one end of the conveying pipe 12 passes through the raw material silo 1 and extends to the interior thereof, a first solenoid valve 13 is arranged on the conveying pipe 12, a detection switch 11 electrically connected to the first solenoid valve 13 and located below the conveying pipe 12 is arranged in the raw material silo 1, and also comprises two sound and light alarms respectively located at the ash unloading place of the fully enclosed tank truck and on the job operating platform, the sound and light alarms are not shown in the figure, and belong to the prior art without improvement, and the two sound and light alarms are electrically connected to the detection switch 11.

[0023] Specifically, the detection switch 11 is a material level meter.

[0024] Further refinement of the embodiment of the present utility model is as follows: Figure 1 As shown, one end of the conveying pipe 12 inside the raw material bin 1 is tilted downward and the tilt angle is 35-45 degrees.

[0025] It should be noted that the silo top dust collector 2, the pneumatic conveying equipment, the first solenoid valve 13, the detection switch 11 and the sound and light alarm are all electrically connected to the controller, which is not shown in the figure.

[0026] The workflow of this utility model:

[0027] First, the controller controls the pneumatic conveying equipment to work, and then uses nitrogen to transport the dust-removed powdered materials in the fully enclosed tank truck to the raw material bin 1. As the conveying progresses, when the powder accumulation height in the raw material bin 1 reaches the installation detection height of the level meter, the level meter immediately feeds back a signal to the controller. At this time, the controller controls the first solenoid valve 13 to close. After the first solenoid valve 13 is closed, the nitrogen source can be immediately cut off to stop the ash transfer into the raw material bin 1. At the same time, the controller synchronously controls the two sound and light alarms to remind the staff that the raw material bin 1 is full at this time, and then a new raw material bin 1 needs to be replaced for a new round of ash transfer process. During the entire ash transfer process, the silo top dust collector 2 is always in a working state under the control of the controller, and then absorbs the dust generated by the raw material bin 1 during the ash transfer process. At this time, a part of the powder will adhere to the dust bag inside the silo top dust collector 2. After the subsequent silo top dust collector 2 is shut down, this part of the powder can be discharged again for secondary use;

[0028] Compared with the prior art, when the amount of ash transferred into the raw material silo 1 reaches a preset stacking detection height, the device will immediately trigger a signal to automatically cut off the nitrogen source and stop the ash transfer process. At this time, the phenomenon of the raw material silo 1 being full is eliminated, and the probability of dust leakage on the silo top is greatly reduced. At the same time, the dust collection bags inside the silo top dust collector 2 are no longer easily damaged, and the frequency of replacement and maintenance is reduced. The effect of closed ash transfer is improved and the service life of the device is extended.

[0029] In some embodiments, Figure 1 and Figure 2 As shown, an ultrasonic level sensor 3 is also provided at the top of the inner part of the raw material bin 1, and a second solenoid valve 4 electrically connected to the ultrasonic level sensor 3 is provided on the conveying pipe 12; this embodiment is a backup emergency measure, that is, assuming that the level meter fails, if the accumulation height of the powder material is higher than the detection height of the level meter but the level meter cannot normally feedback the signal, the ultrasonic level sensor 3 can also perform auxiliary detection at this time, and control the second solenoid valve 4 to close immediately to avoid the full bin phenomenon, thereby further reducing the safety hazard.

[0030] In other embodiments, Figure 2 As shown, a transparent observation window 14 is provided on the raw material bin 1;

[0031] In a further optimization of the above embodiment, a vibration motor 5 is provided on the raw material bin 1; in this embodiment, the stacking density of the powder in the raw material bin 1 can be checked through the transparent observation window 14 after the automatic ash transfer into the raw material bin 1 is completed. If the stacking is not dense enough, the vibration motor 5 can be started to assist in compaction. If the material stacking height is reduced after compaction, the material can be supplemented for a second time to the maximum material level.

[0032] 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. An automatic ash-transfer cutting device for a raw material silo, comprising a raw material silo (1) and a fully enclosed tank truck, wherein a silo top dust collector (2) connected to the interior of the raw material silo (1) is arranged on the top of the raw material silo (1), and the fully enclosed tank truck is connected to a pneumatic conveying device, characterized in that: The pneumatic conveying device is connected to a conveying pipe (12), one end of which passes through the raw material bin (1) and extends into the interior thereof; a first solenoid valve (13) is arranged on the conveying pipe (12); a detection switch (11) electrically connected to the first solenoid valve (13) and located below the conveying pipe (12) is arranged in the raw material bin (1); and two sound and light alarms are respectively located at the ash unloading place of the fully enclosed tank truck and on the work station operation platform; both sound and light alarms are electrically connected to the detection switch (11).

2. The automatic ash-transfer cutting device for a raw material bin according to claim 1 is characterized in that: The detection switch (11) is a material level meter.

3. The automatic ash-transfer cutting device for a raw material bin according to claim 1 is characterized in that: An ultrasonic material level sensor (3) is also provided at the internal top of the raw material bin (1), and a second electromagnetic valve (4) electrically connected to the ultrasonic material level sensor (3) is provided on the conveying pipe (12).

4. The automatic ash-transfer cutting device for a raw material bin according to claim 1 is characterized in that: The raw material bin (1) is provided with a transparent observation window (14).

5. The automatic ash-transfer cutting device for a raw material bin according to claim 4 is characterized in that: The raw material bin (1) is provided with a vibration motor (5).

6. The automatic ash-transfer cutting device for a raw material bin according to claim 1 is characterized in that: One end of the conveying pipe (12) located inside the raw material bin (1) is arranged to be tilted downwards with an inclination angle of 35-45 degrees.

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