CN213923144U

CN213923144U - Chain auxiliary pneumatic conveying equipment

Info

Publication number: CN213923144U
Application number: CN202022643593.7U
Authority: CN
Inventors: 黄俊杰; 万厚兵; 向华兴
Original assignee: Hubei Tianyi Machinery Co ltd
Current assignee: Hubei Tianyi Machinery Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-10
Anticipated expiration: 2030-11-16

Abstract

A chain auxiliary pneumatic conveying device, a conveying method and application mainly comprise a device, wherein the device comprises a device support, a sealing shell is arranged on the device support, and a space in the sealing shell is divided into a conveying groove body and a plenum chamber by a breathable fabric layer, wherein an upper groove body guide rail and a lower groove body guide rail are arranged in the conveying groove body, and a scraper chain is arranged on the upper groove body guide rail and the lower groove body guide rail and is driven by a driving device; the plenum chamber is connected with the air pipe on the side of the feed end of the equipment, and the other end of the air pipe is connected with the high-pressure fan. The chain auxiliary pneumatic conveying equipment, the conveying method and the application can ensure smooth conveying of materials in the small-inclination pneumatic chute.

Description

Chain auxiliary pneumatic conveying equipment

Technical Field

The utility model relates to a conveying equipment, especially dry likepowder or particle diameter are at the raw materials conveying equipment of the powder material of 3 ~ 6mm below easy aerifing in cement trade, electrolytic aluminum trade.

Background

In the conveying of dry and loose powdery materials or easily fluidized materials with the particle size of below 3-6 mm in the industries of building materials, metallurgy, lightening, grain and the like, pneumatic conveying equipment is applied in many cases, wherein the pneumatic chute is most commonly applied, and the arrangement inclination is generally 4% -10%. For a pneumatic chute with a long conveying distance, the slope degree can not reach 4% due to space limitation, the insufficient conveying slope degree can cause difficult material conveying or even chute blockage and unsmooth feeding of subsequent equipment, and if the conveyed material is raw material, the unsmooth feeding can cause production stop.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a chain auxiliary pneumatic conveying equipment is provided, can guarantee the smooth transport of material in the pneumatic chute of little inclination (minimum inclination can reach 1%, maximum length can reach 80 m).

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a chain auxiliary pneumatic conveying device comprises a device support, wherein a sealing shell is arranged on the device support, and a breathable fabric layer divides the space in the sealing shell into a conveying groove body and a plenum chamber, wherein an upper groove body guide rail and a lower groove body guide rail are arranged in the conveying groove body, and a scraper chain is arranged on the upper groove body guide rail and the lower groove body guide rail and is driven by a driving device; the plenum chamber is connected with the air pipe on the side of the feed end of the equipment, and the other end of the air pipe is connected with the high-pressure fan.

The conveying trough body comprises a trough body cover plate, trough body side plates and a trough body connecting flange; the groove body cover plate and the groove body side plate are connected through bolts and sealed through sealing gaskets, and the groove body connecting flange are sealed through rubber sealing gaskets and sealing glue; the plenum chamber includes plenum chamber seal housing, plenum chamber flange, ventilative fabric layer supporting component, and wherein plenum chamber seal housing is the integrated into one piece structure, and plenum chamber seal housing and cell body curb plate bolted connection are sealed, adopt rubber packing pad and sealed glue to seal between plenum chamber flange and the plenum chamber flange.

A sensor fixing cavity is arranged on the side plate of the tank body, and a material layer detection sensor is arranged in the sensor fixing cavity.

The breathable fabric layer, the breathable fabric layer supporting part and the groove body lower guide rail are connected through countersunk bolts.

The sealing shell is obliquely arranged, one end, located at the feeding port, of the sealing shell is higher, and one end, located at the exhaust port and the discharging port, of the sealing shell is lower.

The conveying equipment is provided with a safety monitoring device, and the safety monitoring device comprises a self-cleaning type closed peeping window, a material blocking alarm device, a broken chain detection device and a material layer thickness detection device.

The utility model relates to a chain auxiliary pneumatic conveying equipment has following technological effect:

1) through set up bed of material thickness detection device in chute both sides, when detecting that bed of material thickness is higher than predetermineeing the height, can produce feedback signal and give automatic control system, automatic control system sends the chain auxiliary conveyor system start-up command afterwards, and auxiliary assembly carries the material to subordinate's equipment and goes.

2) And the good sealing performance can be ensured by adopting the rubber sealing gasket and the sealing gum to perform static sealing between the flanges at the joint of the shell.

3) Through setting up a plurality of self-cleaning formula canned type peep window, the manual work regularly observes or detects, sets up chain breakage detection device and sets up putty alarm device in discharge gate department at the sealed afterbody in addition, in case the chain is broken or takes place to pack, the sensor can upload tail-axle stall alarm signal and putty signal to automatic control system, and automatic control system sends the supplementary conveying system of chain command of shutting down immediately, avoids causing the damage to equipment.

4) Through improving traditional pneumatic chute conveyer, make this equipment can adapt to the material transport of less angular dimension within range, can compress the cost of sealing up the construction by great extent, reduce engineering cost. The increased scraper chain has very low running abrasion loss, and the service life of the scraper chain can reach more than 10 times of that of a chain conveyor under the same condition.

5) Through implementing a chain auxiliary pneumatic conveying equipment, synthesize the cost low, save and arrange space, sealing performance is good, be convenient for observe, overhaul, chain auxiliary conveying system can intervene in real time according to bed of material height feedback signal. After the project development and implementation reach the standard, the pneumatic chute system not only can be used for a new pneumatic chute product, but also can be used for modifying an old pneumatic chute, the project prospect is considerable, and the market value is hundreds of millions.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a front view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is the utility model discloses well bed height detection schematic diagram.

Fig. 4 is a schematic view of the self-cleaning sealed viewing window of the present invention.

Fig. 5 is the schematic diagram of the material blockage alarm device of the utility model.

In the figure: the device comprises a device support 1, a sealing shell 2, a breathable fabric layer 3, a conveying groove body 4, a plenum chamber 5, an upper groove body guide rail 6, a lower groove body guide rail 7, a scraper chain 8, a driving device 9, a ventilating duct 10, a high-pressure fan 11, a groove body cover plate 12, a groove body side plate 13, a groove body connecting flange 14, a plenum chamber sealing shell 15, a plenum chamber connecting flange 16, a breathable fabric layer supporting part 17, a feeding hole 18, an exhaust port 19, a discharging port 20, an air volume control butterfly valve 21, a tail part 22, a head part 23, an upper guide rail supporting rod 24 and a self-cleaning type sealing type peeping window 25.

Detailed Description

As shown in fig. 1, the chain auxiliary pneumatic transmission device comprises a device support 1, wherein a sealing shell 2 is obliquely installed on the device support 1, and the sealing shell 2 is formed by hermetically assembling a plurality of sections of shells.

Each section of the support shell comprises a trough body cover plate 12, a trough body side plate 13, a plenum chamber sealing shell 15 and a breathable fabric layer supporting part 17.

The tank body cover plate 12, the tank body side plate 13 and the plenum chamber sealing shell 15 are connected through bolts, and sealed gaskets are adopted and coated with sealing glue to seal, so that the sealing performance of the equipment is guaranteed.

An air-permeable fabric layer 3 is fixed on the connecting part between the inflation chamber sealing shell 15 and the groove body side plate 13, and the lower end of the air-permeable fabric layer 3 is supported by an air-permeable fabric layer supporting part 17. The space in each section of the shell is divided into a conveying trough body 4 and an inflation chamber 5 by the breathable fabric layer 3.

The conveying trough body 4 is internally provided with a trough body upper guide rail 6 and a trough body lower guide rail 7, the trough body upper guide rail 6 is fixed above the conveying trough body 4 through an upper guide rail support rod 24, and the trough body lower guide rail 7 is connected with the breathable fabric layer 3 and the breathable fabric layer support part 17 through countersunk bolts. The scraper chain 8 is positioned on the upper guide rail 6 and the lower guide rail 7 of the groove body and is guided by the upper guide rail 6 and the lower guide rail 7 of the groove body. The structure enables the space in the height direction occupied by the scraper chain 8 for auxiliary conveying to be compressed to the minimum, so that the conveying space is utilized to the maximum, and the space occupied by a material conveying cavity is reduced; meanwhile, the breathable fabric layer or the lower guide rail is more convenient and convenient to replace.

A trough body connecting flange 14 is arranged on the conveying trough body 4 of each section of the shell, a plenum chamber connecting flange 16 is arranged on the plenum chamber 5 of each section of the shell, and the trough body connecting flange 14 and the plenum chamber connecting flange 16 are manufactured in an integrated blanking, integral manufacturing and die punching mode so as to guarantee the flatness and the precision of the trough body connecting flange and the plenum chamber connecting flange.

And at the joint between the branch shell and the place where the branch shell and the branch shell need to be connected by using bolts, the connecting flange and the connecting flange are sealed by using a rubber sealing gasket and a sealant. So as to ensure that the material cannot leak from the flange connection part in the material conveying process.

The bottom end of the plenum chamber 5 is connected with a ventilating duct 10 at one side of a feeding hole 18 of the device, the ventilating duct 10 is provided with an air volume control butterfly valve 21, and the other end of the ventilating duct 10 is connected with a high-pressure fan 11. The high pressure fan 11 is used for starting and conveying powder.

Plenum chamber 5 is the integrated into one piece structure, can guarantee not to leak out.

According to the abrasion characteristic of materials, the side plate 13 of the trough body of the conveying equipment is made of abrasion-resistant materials (generally 16 Mn). A wear-resistant steel plate can be further arranged on the side plate 13 of the tank body.

The chain of the scraper chain 8 is a sleeve roller chain, the running abrasion loss is very low, and the service life of the chain conveyor can reach more than 10 times of that of a chain conveyor under the same condition.

As shown in fig. 3, a sensor fixing cavity 13.1 is arranged at the left and right of the tank side plate 13, and a material layer detection sensor 13.2 is installed in the sensor fixing cavity 13.1. The model of the material layer detection sensor 13.2 is LJC30A 3-H-J/EZ. The layer detection sensor 13.2 is used to monitor the thickness of the material layer 13.3.

In addition, a safety monitoring device is arranged on the conveying equipment, and the safety monitoring device comprises a self-cleaning type sealed peeping window 25, a material blocking alarm device, a broken chain detection device and a material layer thickness detection device.

As shown in fig. 4, the self-cleaning sealed sight glass 25 includes a glass window 25.1, a cleaning rod 25.2 with a brush is disposed on the inner surface of the glass window 25.1, the cleaning rod 25.2 is fixedly connected with a connecting rod 25.3, and the connecting rod 25.3 freely passes through the glass window 25.1 and is in threaded connection with a sleeve 25.4 on the outer side of the glass window 25.1. A spring 25.5 is connected between the glass window 25.1 and the inner surface of the sleeve 25.4, a connecting rod 25.3 penetrates through the spring 25.5, and the upper end of the connecting rod is connected with a handle 25.6 outside the sleeve 25.4. The self-cleaning sealed peep hole 25 facilitates manual inspection and observation at regular intervals. From clear formula canned type peep hole 25 can clearly observe the transport condition of material and can guarantee the leakproofness of equipment again, when having attached to the material on the peep hole, can clean through the cleaning rod 25.2 on the manual rotation peep hole.

As shown in fig. 5, the material blockage alarm device 26 is arranged at the discharge opening, and adopts a rotation-resisting type material blockage alarm.

The chain breakage detection device is fixed on a tail shaft at the tail part of the chain auxiliary conveying system, is of an integrated structure, and comprises a rotating shaft, a sealing shell, rotating blades, a transparent cover, a gland, a bearing, a sensor assembly and the like. The sensor can measure the rotating speed of the rotating blade so as to judge whether the chain is broken, if the chain is broken, the rotating speed of the tail shaft is 0, and a feedback signal of the sensor is transmitted to the automatic control system to stop the equipment, so that the running safety of the equipment is ensured.

In the case of pneumatic chutes for long-distance transport, even if they are arranged with the smallest pitch, the height difference is still large, and when the apparatus is not allowed to have a large height difference for various reasons, the pitch of the apparatus does not meet the use requirements, and a poor feeding phenomenon occurs. The chain auxiliary conveying system is added on the traditional pneumatic chute to assist in conveying materials, so that the system layout can be met, and unsmooth material conveying can not be caused.

Claims

1. The utility model provides a chain auxiliary pneumatic conveying equipment which characterized in that: the device comprises an equipment support (1), wherein a sealing shell (2) is arranged on the equipment support (1), a breathable fabric layer (3) divides the space in the sealing shell (2) into a conveying trough body (4) and a plenum chamber (5), wherein a trough body upper guide rail (6) and a trough body lower guide rail (7) are arranged in the conveying trough body (4), and a scraper chain (8) is arranged on the trough body upper guide rail (6) and the trough body lower guide rail (7) and is driven by a driving device (9); plenum chamber (5) are located the feed end one side of this equipment and are connected with air pipe (10), and air pipe (10) other end is connected with high pressure positive blower (11).

2. The chain assisted pneumatic conveying apparatus of claim 1, wherein: the conveying trough body (4) comprises a trough body cover plate (12), a trough body side plate (13) and a trough body connecting flange (14); the groove body cover plate (12) and the groove body side plate (13) are connected through bolts and sealed through sealing gaskets, and the groove body connecting flange (14) are sealed through rubber sealing gaskets and sealing glue; plenum chamber (5) include plenum chamber seal housing (15), plenum chamber flange (16), ventilative fabric layer supporting component (17), and wherein plenum chamber seal housing (15) are the integrated into one piece structure, and plenum chamber seal housing (15) and cell body curb plate (13) bolted connection are sealed, adopt rubber packing pad and sealed glue to seal between plenum chamber flange (16) and plenum chamber flange (16).

3. The chain assisted pneumatic conveying apparatus of claim 2, wherein: a sensor fixing cavity (13.1) is arranged on the tank body side plate (13), and a material layer detection sensor (13.2) is installed in the sensor fixing cavity (13.1).

4. The chain assisted pneumatic conveying apparatus of claim 2, wherein: the breathable fabric layer (3), the breathable fabric layer supporting part (17) and the groove body lower guide rail (7) are connected through countersunk bolts.

5. The chain assisted pneumatic conveying apparatus of claim 1, wherein: the sealing shell (2) is obliquely arranged, one end, located at the feeding hole (18), of the sealing shell (2) is higher, and one end, located at the exhaust hole (19) and the discharging hole (20), of the sealing shell (2) is lower.

6. The chain assisted pneumatic conveying apparatus of claim 1, wherein: the conveying equipment is provided with a safety monitoring device, and the safety monitoring device comprises a self-cleaning type sealed peeping window (25), a material blocking alarm device, a broken chain detection device and a material layer thickness detection device.