Pneumatic conveying device for conveying steam brick powder raw materials

Abstract

The utility model provides a pneumatic conveying device for conveying steam brick powder raw materials, which comprises a powder conveying box, a stock bin and a Roots blower, supporting legs are arranged at the bottom of the Roots blower, a powder outlet pipe is communicated with the bottom of one side of the powder conveying box, a material conveying pipe is communicated with the bottom of the powder outlet pipe, the bottom of the powder outlet pipe is communicated with the material conveying pipe, and the material conveying pipe is communicated with the stock bin. One end of the material conveying pipe is communicated with the air outlet end of the Roots blower, the bottom of the discharging hopper is communicated with the powder conveying box, a mounting shaft is movably arranged in the powder conveying box, auger blades are mounted on the mounting shaft, a discharging opening is formed in the bottom of the material bin, a stirring assembly is arranged in the material bin, and the discharging opening is communicated with the powder conveying box. According to the steam brick powder conveying device, the problems that an existing steam brick powder conveying device is large in size, complex in structure and not suitable for long-distance conveying are solved.

Description

Technical Field

[0001] The utility model relates to the field of steam brick powder transportation, in particular to an air conveying device for conveying steam brick powder raw materials. Background Art

[0002] In the production process of steam bricks, cement, expansion agent and other powder materials are mixed into powder raw materials, and then the mixed powder raw materials are transferred to a specific location and mixed with water to form concrete. Currently, the most commonly used transfer method is to transport by conveying equipment or elevators.

[0003] When the powder stirring and mixing processing equipment is far away from the water adding and mixing processing equipment, if conveying equipment such as belts or elevators are used to transport the mixed powder, due to the large size of the conveying equipment, the power structure and auxiliary structure of the conveying equipment are relatively complex, and it is easily limited by the site, and is not suitable for long-distance transportation; at the same time, during the transportation process, the small powder particles are easily scattered in the air due to the long transportation distance, thereby causing air pollution in the workplace.

[0004] Therefore, it is necessary to provide a new air conveying device for conveying steam brick powder raw materials to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a pneumatic conveying device for conveying steam brick powder raw materials, which solves the problem that the existing steam brick powder conveying equipment is large in size, complex in structure and not suitable for long-distance transportation.

[0006] The utility model provides an air conveying device for conveying steam brick powder raw materials, comprising a powder conveying box, a silo, and a Roots blower with support legs installed at the bottom, a powder outlet pipe is connected to the bottom of one side of the powder conveying box, a material transfer pipe is connected to the bottom of the powder outlet pipe, and the bottom of the powder outlet pipe is connected to the material transfer pipe;

[0007] One end of the material transfer pipe is connected to the air outlet end of the Roots blower, and the other end of the material transfer pipe is connected to the feed end at the top of the silo.

[0008] In a preferred embodiment, a plurality of lower hoppers are spaced apart above the powder delivery box, and the bottom of the lower hoppers is connected to the powder delivery box;

[0009] A mounting shaft is movably arranged inside the powder conveying box, and an auger blade is mounted on the mounting shaft.

[0010] In a preferred embodiment, a conveying motor is provided on one side of the powder conveying box, and an output end of the conveying motor is connected to the mounting shaft via a coupling.

[0011] In a preferred embodiment, a discharge port is provided at the bottom of the silo, a stirring assembly is provided inside the silo, an air outlet pipe is provided at the top of the silo, and a dust collector is provided inside the air outlet pipe.

[0012] In a preferred embodiment, two rotating shafts are movably arranged inside the silo via bearings, and a plurality of stirring blades are installed on the rotating shafts at intervals.

[0013] In a preferred embodiment, a transmission worm gear is installed on the top of the two rotating shafts, a limit seat is installed on the top of the silo, and a transmission worm is connected to both ends of the limit seat. The two transmission worms rotate in opposite directions, and the two transmission worms are respectively engaged with the two transmission worm gears.

[0014] In a preferred embodiment, a stirring motor is installed on the top of the silo, and the output end of the stirring motor is connected to one of the transmission worms through a coupling, and the transmission worm and the transmission worm wheel adopt a closed transmission.

[0015] Beneficial effects of the utility model:

[0016] 1. When the air conveying device is used, the staff can add different powders into different lower hoppers, open the material valve at the bottom of the lower hopper, and the materials can enter the powder conveying box. Start the conveying motor, and under the action of the auger blades, the powder enters the material transfer pipe from the powder outlet pipe, and finally enters the silo along the material transfer pipe under the action of the Roots blower. The dust collector inside the air outlet pipe can separate the powder from the conveying airflow, and the powder can fall into the lower hopper for collection;

[0017] 2. Before the powder is needed, the staff can start the stirring motor to drive the two transmission worms to rotate. Under the transmission action of the two transmission worms and the two transmission worm wheels, the two rotating shafts can rotate in opposite directions, so that the stirring blades can fully mix the different powders. When it is needed, open the material valve at the bottom of the silo to discharge the powder directly. There is no need to transfer the powder to the mixer for mixing, which improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional view of the main structure of the air conveying device for conveying steam brick powder raw materials provided by the utility model;

[0019] Figure 2 A schematic diagram of the structure of the silo provided by the utility model;

[0020] Figure 3 The utility model is a plan view of the main structure of the air conveying device for conveying steam brick powder raw materials.

[0021] Numbers in the figure: 1. Powder conveying box; 2. Silo; 3. Powder outlet pipe; 4. Material transfer pipe; 5. Roots blower; 6. Feed end; 7. Lower hopper; 8. Mounting shaft; 9. Auger blade; 10. Conveying motor; 11. Discharge port; 12. Air outlet pipe; 13. Dust collector; 14. Rotating shaft; 15. Stirring blade; 16. Transmission worm gear; 17. Limit seat; 18. Transmission worm; 19. Stirring motor; 20. Support leg. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1 , Figure 2 as well as Figure 3 ,in Figure 1 A three-dimensional view of the main structure of the air conveying device for conveying steam brick powder raw materials provided by the utility model; Figure 2 A schematic diagram of the structure of the silo provided by the utility model; Figure 3 The utility model is a plan view of the main structure of the air conveying device for conveying steam brick powder raw materials.

[0024] In the specific implementation process, Figure 1-Figure 3 As shown, it includes a powder conveying box 1, a silo 2 and a Roots blower 5 with a support leg 20 installed at the bottom. A powder discharge pipe 3 is connected to the bottom of one side of the powder conveying box 1, and a feeding pipe 4 is connected to the bottom of the powder discharge pipe 3. The bottom of the powder discharge pipe 3 is connected to the feeding pipe 4, and one end of the feeding pipe 4 is connected to the air outlet end of the Roots blower 5. The other end of the feeding pipe 4 is connected to the feeding end 6 at the top of the silo 2. A plurality of lower hoppers 7 are arranged at intervals above the powder conveying box 1. The bottom of the lower hopper 7 is connected to the powder conveying box 1. A mounting shaft 8 is movably arranged inside the powder conveying box 1. The mounting shaft 8 An auger blade 9 is installed on it, and a conveying motor 10 is arranged on one side of the powder conveying box 1. The output end of the conveying motor 10 is connected to the installation shaft 8 through a coupling. When the air conveying device is in use, the staff can add different powders into different lower hoppers 7 and open the material valve at the bottom of the lower hopper 7. At this time, the material can enter the powder conveying box 1, and then start the conveying motor 10 to drive the installation shaft 8 to rotate. Under the action of the auger blade 9, the powder enters the inside of the material transfer pipe 4 from the powder outlet pipe 3, and finally enters the inside of the silo 2 along the material transfer pipe 4 under the action of the Roots blower 5.

[0025] A discharge port 11 is provided at the bottom of the silo 2, a stirring assembly is provided inside the silo 2, an air outlet pipe 12 is provided at the top of the silo 2, a dust collector 13 is provided inside the air outlet pipe 12, and the dust collector 13 inside the air outlet pipe 12 can separate the powder from the conveying airflow. At this time, the powder can fall into the lower hopper 7 for collection. The specific structure of the dust collector 13 is an existing mature technology and will not be elaborated here. Those skilled in the art can refer to the pneumatic conveyor for the specific principle.

[0026] Two rotating shafts 14 are movably arranged inside the silo 2 through bearings, and a plurality of stirring blades 15 are installed on the rotating shafts 14 at intervals. The stirring blades 15 on the two rotating shafts 14 are staggered to avoid collision of the stirring blades 15 when the rotating shafts 14 rotate relative to each other.

[0027] A transmission worm gear 16 is installed on the top of the two rotating shafts 14, and a limit seat 17 is installed on the top of the silo 2. A transmission worm 18 is connected to both ends of the limit seat 17. The two transmission worms 18 rotate in opposite directions, and the two transmission worms 18 are respectively meshed with the two transmission worm wheels 16. A stirring motor 19 is installed on the top of the silo 2. The output end of the stirring motor 19 is connected to one of the transmission worms 18 through a coupling. The transmission worm 18 and the transmission worm wheel 16 adopt a closed transmission. Before the powder is needed, the staff can start the stirring motor 19 to drive the two transmission worms 18 to rotate. Under the transmission action of the two transmission worms 18 and the two transmission worm wheels 16, the two rotating shafts 14 can rotate in opposite directions at this time, so that the stirring blades 15 can fully mix different powders. When it is needed, the material valve at the bottom of the silo 2 is opened to directly discharge the powder.

[0028] Working principle of the utility model: When the air conveying device is used, the staff can add different powders into different lower hoppers 7, open the material valve at the bottom of the lower hopper 7, and then the materials can enter the powder conveying box 1, and then start the conveying motor 10 to drive the installation shaft 8 to rotate. Under the action of the auger blade 9, the powder enters the inside of the material transfer pipe 4 from the powder outlet pipe 3, and finally enters the inside of the silo 2 along the material transfer pipe 4 under the action of the Roots blower 5;

[0029] The dust collector 13 inside the air outlet pipe 12 can separate the powder from the conveying airflow, and the powder can then fall into the lower hopper 7 for collection;

[0030] Before the powder is needed, the staff can start the stirring motor 19 to drive the two transmission worms 18 to rotate. Under the transmission action of the two transmission worms 18 and the two transmission worm wheels 16, the two rotating shafts 14 can rotate in opposite directions, so that the stirring blades 15 can fully mix the different powders. When it is needed, the material valve at the bottom of the silo 2 can be opened to directly discharge the powder.

[0031] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pneumatic conveying device for conveying steam brick powder raw materials, comprising a powder conveying box (1), a silo (2) and a Roots blower (5) with support legs (20) installed at the bottom, characterized in that: A powder discharge pipe (3) is provided at the bottom of one side of the powder delivery box (1), a material transfer pipe (4) is provided at the bottom of the powder discharge pipe (3), and the bottom of the powder discharge pipe (3) is connected to the material transfer pipe (4); One end of the material transfer pipe (4) is connected to the air outlet end of the Roots blower (5), and the other end of the material transfer pipe (4) is connected to the top feed end (6) of the silo (2).

2. The air conveying device for conveying steam brick powder raw materials according to claim 1 is characterized in that: A plurality of lower hoppers (7) are arranged at intervals above the powder material conveying box (1), and the bottom of the lower hoppers (7) is connected to the powder material conveying box (1); A mounting shaft (8) is movably arranged inside the powder conveying box (1), and an auger blade (9) is mounted on the mounting shaft (8).

3. The air conveying device for conveying steam brick powder raw materials according to claim 2 is characterized in that: A conveying motor (10) is provided on one side of the powder conveying box (1), and an output end of the conveying motor (10) is connected to the mounting shaft (8) via a coupling.

4. The air conveying device for conveying steam brick powder raw materials according to claim 3 is characterized in that: The bottom of the silo (2) is provided with a discharge port (11), the interior of the silo (2) is provided with a stirring assembly, the top of the silo (2) is connected with an air outlet pipe (12), and the interior of the air outlet pipe (12) is provided with a dust collector (13).

5. The air conveying device for conveying steam brick powder raw materials according to claim 4 is characterized in that: Two rotating shafts (14) are movably arranged inside the silo (2) via bearings, and a plurality of stirring blades (15) are installed on the rotating shafts (14) at intervals.

6. The air conveying device for conveying steam brick powder raw materials according to claim 5, characterized in that: A transmission worm gear (16) is installed on the top of the two rotating shafts (14), a limit seat (17) is installed on the top of the silo (2), and both ends of the limit seat (17) are connected to a transmission worm (18), the two transmission worms (18) rotate in opposite directions, and the two transmission worms (18) are respectively meshed with the two transmission worm gears (16).

7. The air conveying device for conveying steam brick powder raw materials according to claim 6, characterized in that: A stirring motor (19) is installed on the top of the silo (2), and the output end of the stirring motor (19) is connected to one of the transmission worms (18) through a coupling, and the transmission worm (18) and the transmission worm wheel (16) adopt a closed transmission.

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