Dust fall buffer gas tank device

Abstract

The utility model relates to the technical field of dust removal equipment, in particular to a dust fall buffering air box device which is installed on a coal conveying belt. Comprising a box body arranged above a coal conveying belt, a baffle plate arranged at the lower end of the box body and used for covering a gap space between the box body and the coal conveying belt, a flow guide channel formed in the box body, an impeller rotationally arranged in the box body, and a flow guide plate arranged in the box body and used for dividing the flow guide channel into an inlet channel and an outlet channel together with the impeller, the flexible shielding curtain is arranged at the lower end of the flow guide plate and is used for shielding a gap space between the flow guide plate and the coal conveying belt; a plurality of electric spraying heads are further arranged in the inlet channel, and each electric spraying head is connected with a pipeline and connected to tap water through the pipeline; the spraying device further comprises a PLC, and all the electric spraying heads are electrically connected with the PLC. The dust falling buffer gas tank device can effectively reduce flying and overflowing of coal dust, protect the environment and improve the working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a dust reduction and buffer air box device. Background Art

[0002] During the process of transporting coal by the coal conveying belt in enterprises such as thermal power plants, coal mines, and chemical industries, induced wind will be generated due to the high-speed transmission of the coal conveying belt. The induced wind blows the coal dust with finer particle size on the surface of the coal, causing the coal dust to fly and overflow, affecting the on-site working environment and the physical health of workers, and easily causing coal dust pollution, corrosion of equipment, and wear of transmission components, increasing the maintenance workload of the equipment, reducing the service life of the equipment, and affecting the safe operation of the equipment. Content of the Utility Model

[0003] Therefore, in view of the above problems, the utility model provides a dust reduction and buffer air box device, which can effectively reduce the flying and overflow of coal dust, protect the environment, and improve the working conditions.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A dust reduction and buffer air box device is installed on the coal conveying belt, including a box body arranged above the coal conveying belt, a baffle arranged at the lower end of the box body for covering the gap space between the box body and the coal conveying belt, a diversion channel opened in the box body, an impeller rotatably arranged in the box body, a diversion plate arranged in the box body together with the impeller for dividing the diversion channel into an inlet channel and an outlet channel, and a flexible shielding curtain arranged at the lower end of the diversion plate for shielding the gap space between the diversion plate and the coal conveying belt;

[0006] A plurality of electric spray heads are further arranged in the inlet channel, and each electric spray head is connected with a pipeline and connected to tap water through the pipeline;

[0007] It further includes a PLC controller, and each electric spray head is electrically connected to the PLC controller respectively.

[0008] Furthermore, among each electric spray head: at least one electric spray head sprays towards the impeller; at least one electric spray head sprays towards the diversion plate.

[0009] Furthermore, the impeller includes two bearing seats arranged in the box body, a rotating shaft passing through the two bearing seats, and a plurality of blade plates arranged at intervals on the rotating shaft;

[0010] An axle sleeve type encoder is fixedly arranged outside the box body, and the rotating shaft passes through the outside of the box body and is arranged inside the axle sleeve type encoder;

[0011] The axle sleeve type encoder is electrically connected to the PLC controller.

[0012] Further, it also includes an industrial control touch screen; the industrial control touch screen is electrically connected to the PLC controller.

[0013] Further, it also includes an audible and visual alarm; the audible and visual alarm is electrically connected to the PLC controller.

[0014] By adopting the foregoing technical solution, the beneficial effects of the present utility model are as follows:

[0015] This dust-removing buffer air box device can guide and induce the wind to pass through the impeller for buffering and deceleration from the inlet channel and then output from the outlet channel by setting a diversion plate and a flexible shielding curtain. And during this process, the electric spray head continuously sprays in the inlet channel. Through the disturbance of the impeller, the spray can effectively adsorb the coal dust and then output from the outlet channel back to the coal conveying belt, achieving the effect of reducing the flying and overflow of coal dust.

[0016] Further, the rotation speed of the impeller is detected by a sleeve-type encoder and transmitted to the PLC controller, and is displayed on the industrial control touch screen. Furthermore, the wind speed of the induced wind passing through the impeller can be obtained. The PLC controller controls the spraying amount of each electric sprayer according to the wind speed of the induced wind, better achieving the effect of reducing the flying and overflow of coal dust.

[0017] The spraying amount of the electric sprayer can also be directly controlled through the industrial control touch screen. When the PLC controller determines that the rotation speed of the impeller is abnormal (for example, when the coal conveying belt is running normally, the rotation speed of the impeller is zero), the PLC controller controls the audible and visual alarm to emit an alarm sound to remind the staff to maintain in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of this dust-removing buffer air box device;

[0019] Figure 2 is a front view of this dust-removing buffer air box device;

[0020] Figure 3 is a circuit connection block diagram of this dust-removing buffer air box device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0022] Refer to Figure 1 , Figure 2 and Figure 3 , this embodiment provides a dust-removing buffer air box device, which is installed on the coal conveying belt 100. The coal conveying belt 100 is an existing equipment structure, and this solution does not improve the coal conveying belt 100, so no detailed description will be given here.

[0023] This dust - settling buffer air box device includes a box body 1 arranged above the coal - conveying belt 100, a baffle 2 arranged at the lower end of the box body 1 for covering the gap space between the box body 1 and the coal - conveying belt 100, a diversion channel 11 opened in the box body 1, an impeller 3 rotatably arranged in the box body 1, a diversion plate 4 arranged in the box body 1 together with the impeller 3 to divide the diversion channel 11 into an inlet channel 12 and an outlet channel 13, and a flexible shielding curtain 5 arranged at the lower end of the diversion plate 4 for shielding the gap space between the diversion plate 4 and the coal - conveying belt 100.

[0024] Preferably, the flexible shielding curtain 5 is made of a rubber curtain, which has the advantages of high temperature resistance and corrosion resistance. Of course, the shielding curtain 5 cannot completely block the induced wind, but can only divert most of the induced wind to the inlet channel 12.

[0025] The impeller 3 includes two bearing seats 31 arranged in the box body 1, a rotating shaft 32 passing through the two bearing seats 31, and a plurality of vanes 33 arranged at intervals on the rotating shaft 32( Figure 2 only four vanes 33 are shown).

[0026] An axle - sleeve type encoder 7 is also fixedly arranged outside the box body 1, and the rotating shaft 32 passes out of the box body 1 and is arranged inside the axle - sleeve type encoder 7.

[0027] A plurality of electric spray heads 6 are also arranged in the inlet channel 11 (only 3 are shown in Figure 1 ); among them, at least one electric spray head 6 sprays towards the impeller 3; among them, at least one electric spray head 6 sprays towards the diversion plate 4. Each electric spray head 6 is connected with a pipeline (not shown in the figure) and is connected to tap water (not shown in the figure) through the pipeline.

[0028] It also includes a PLC controller 8, an audible and visual alarm 9, and an industrial control touch screen 10. The positions where the PLC controller 8, the audible and visual alarm 9, and the industrial control touch screen 10 are arranged do not affect the use performance of this dust - settling buffer air box device.

[0029] The above - mentioned various electronic components are all existing devices. Those skilled in the art should possess the conventional selection capabilities of the above - mentioned various electronic components, and those skilled in the art can, according to this specification and the accompanying drawings of the specification, reproduce the dust - settling buffer air box device disclosed in this patent application after a limited number of circuit connection experiments and produce the same technical effects.

[0030] Each of the electric spray heads 6, the axle - sleeve type encoder 7, the audible and visual alarm 9, and the industrial control touch screen 10 is electrically connected to the PLC controller 8.

[0031] The working principle of this dust - settling buffer air box device is as follows:

[0032] By setting the flow guide plate 4 and the flexible shielding curtain 5, the induced wind can be guided to pass through the impeller 3 from the inlet channel 12, buffer and decelerate, and then be output from the outlet channel 13. And the sleeve type encoder 7 detects the rotation speed of the impeller 3 online, transmits it to the PLC controller 7, and displays it on the industrial control touch screen 10. Furthermore, the PLC controller 7 can obtain the wind speed of the induced wind passing through the impeller 3. The PLC controller 7 controls the spraying amount of each electric sprayer 6 according to the wind speed of the induced wind. Through continuous spraying of each electric spray head 6 in the inlet channel 12, the spraying can be effectively adsorbed with coal dust through the disturbance of the impeller 3 and then be output from the outlet channel 13 and returned to the coal conveying belt 100, achieving the effect of reducing the floating and overflow of coal dust.

[0033] The spraying amount of the electric sprayer 6 can also be directly controlled through the industrial control touch screen 10.

[0034] When the PLC controller 8 judges that the rotation speed of the impeller 3 is abnormal (for example, when the coal conveying belt 100 is running normally and the rotation speed of the impeller 3 is zero), the PLC controller 8 controls the sound and light alarm 9 to emit an alarm sound to remind the staff to maintain in time.

[0035] Although the present invention is specifically shown and described in combination with the preferred implementation, those skilled in the art should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all of them are within the protection scope of the present invention.

Claims

1. A dust-removing buffer air box device is installed on a coal conveying belt, and is characterized in that: it includes a box body arranged above the coal conveying belt, a baffle plate arranged at the lower end of the box body for covering the gap space between the box body and the coal conveying belt, a diversion channel opened in the box body, an impeller rotatably arranged in the box body, a diversion plate arranged in the box body together with the impeller for dividing the diversion channel into an inlet channel and an outlet channel, and a flexible shielding curtain arranged at the lower end of the diversion plate for shielding the gap space between the diversion plate and the coal conveying belt; a plurality of electric spray heads are further arranged in the inlet channel, and each electric spray head is connected with a pipeline and is connected to tap water through the pipeline; it further includes a PLC controller, and each electric spray head is electrically connected to the PLC controller respectively.

2. The dust-removing buffer air box device according to claim 1, characterized in that, Among each of the electric spray heads: at least one electric spray head sprays towards the impeller; at least one electric spray head sprays towards the diversion plate.

Images