Mixing station for conveying powder by using bin pump

Abstract

The utility model discloses a mixing plant for conveying powder by using a bin pump, which comprises a powder tank, the lower part of the powder tank is connected with a bin pump structure through a manual powder butterfly valve, the bottom end of the bin pump structure is connected to a temporary powder storage bin through a conveying pipe, the powder in the temporary powder storage bin enters a powder metering hopper through a pneumatic butterfly valve and a flexible connector, and the powder metering hopper is connected with the bin pump structure. The conveying of the powder is realized, and the powder in the powder metering hopper enters the stirring main building to be stirred. According to the utility model, the height (about 19 meters) of the powder tank is effectively reduced through bin pump conveying, the occupied area is reduced, and the bin pump is more suitable for the layout of a plurality of powder tanks, especially for a mixing plant with an environment-friendly outer seal, and the outer seal area can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of concrete mixing stations, in particular to a mixing station which uses a silo pump to transport powder. Background Art

[0002] Concrete mixing station is a building material manufacturing equipment composed of five major systems: mixing host, material weighing system, material conveying system, material storage system, control system and other ancillary facilities. Its main working principle is to use cement as a binder, mix sand, lime, coal slag and other raw materials, and finally make concrete. The powder materials available for concrete are mainly cement, fly ash and mineral powder. The commonly used powder material conveying method is screw conveyor.

[0003] The main problem with screw conveyors is that the spiral angle is limited, resulting in a high powder tank (powder storage tank) (about 24 meters). More materials are needed to make the powder tank chassis, which increases the cost. The powder tank has a large windward area, and the structure is further strengthened to resist wind resistance. The powder tank is far away from the main mixing building, and the floor space is large. In order to reduce the height of the powder tank, it is necessary to effectively save costs and floor space. The powder conveying mode needs to be changed. Utility Model Content

[0004] In view of the problems existing in the prior art, the present application provides a mixing station that uses a silo pump to transport powder. The silo pump transportation can effectively reduce the floor space, increase the transportation efficiency, and reduce the height of the powder tank.

[0005] The technical solution to achieve the purpose of the utility model is: a mixing station that uses a silo pump to transport powder, including a powder tank, the bottom of the powder tank is connected to the silo pump structure through a manual powder butterfly valve, the bottom of the silo pump structure is connected to the powder temporary storage bin through a conveying pipe, the powder in the powder temporary storage bin enters the powder metering hopper through a pneumatic butterfly valve and a soft connection to realize the transportation of the powder, and the powder in the powder metering hopper then enters the mixing main building for mixing.

[0006] Preferably, the silo pump structure includes a silo pump body, an air pump inlet pipe is provided on the silo pump body, the air pump inlet pipe is connected to an air pump return pipe, the air pump return pipe is provided with an air pipe manual butterfly valve, the feed port of the silo pump body is connected to the powder tank, and the discharge port of the silo pump body is connected to the conveying pipe.

[0007] Preferably, an air pump discharge pipeline butterfly valve is provided at the delivery pipe near the discharge port of the silo pump body.

[0008] Preferably, a conveying pipeline butterfly valve is also provided on the conveying pipe.

[0009] Preferably, there are several powder tanks and several silo pump structures, and the materials in the batching machine enter the powder tank, silo pump structure, powder temporary storage bin, powder metering hopper in sequence through an inclined belt conveyor, and then enter the main mixing building for mixing.

[0010] By adopting the above technical solution, the utility model has the following beneficial effects: (1) The silo pump conveying effectively reduces the height of the powder tank (about 19 meters). Reduce the floor space. It is more suitable for the layout of multiple powder tanks. In particular, the mixing station with environmentally friendly outer seal can greatly reduce the outer packaging area. It effectively saves costs for users. The layout of the powder tank is no longer restricted by the spiral feeding or air trough feeding, and is not limited by the location. It can be arranged at any position on the side of the main building.

[0011] (2) The discharge port of the powder tank is connected to the silo pump through a manual powder butterfly valve, and the silo pump uses air pressure to transport the powder. The powder is transported to the main mixing building through the conveying pipeline. The main building is equipped with a temporary storage silo for powder. The material in the temporary storage silo is discharged to the powder metering hopper through a pneumatic butterfly valve and a soft connection. The pneumatic butterfly valve can effectively control the metering accuracy and achieve the purpose of the coarse and fine scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to specific embodiments and in conjunction with the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the utility model of the silo pump conveying powder to the mixing main building;

[0014] Figure 2 This is the front view of the silo pump structure of the utility model;

[0015] Figure 3 This is a layout diagram of several powder tanks and silo pumps of the utility model.

[0016] Figure 4 This is the layout diagram of the utility model silo pump conveying mixing station.

[0017] Figure 5 This is a layout diagram of a prior art screw conveying mixing station. DETAILED DESCRIPTION

[0018] Embodiment 1

[0019] See Figures 1 to 5The mixing station of this embodiment that uses a silo pump to transport powder includes a powder tank. The bottom of the powder tank 1 is connected to the silo pump structure 3 through a powder manual butterfly valve 2. The bottom of the silo pump structure is connected to the powder temporary storage bin 5 through a conveying pipe 4. The powder in the powder temporary storage bin 5 enters the powder metering hopper 8 through a pneumatic butterfly valve 6 and a soft connection 7 to realize the transportation of the powder. The powder in the powder metering hopper then enters the mixing main building 9 for mixing. In this application, the powder tank discharge port is connected to the silo pump through a powder manual butterfly valve, and the silo pump uses air pressure to transport the powder. The powder is transported to the mixing main building through a conveying pipe. The main building is equipped with a powder temporary storage bin, and the materials in the temporary storage bin are unloaded to the powder metering hopper through a pneumatic butterfly valve and a soft connection. The pneumatic butterfly valve can effectively control the metering accuracy and achieve the purpose of the coarse and fine scale. The silo pump transportation effectively reduces the height of the powder tank (about 19 meters), is not limited by the location, and can be arranged at any position on the side of the main building.

[0020] The silo pump structure includes a silo pump body 30, an air pump air inlet pipe 31 is provided on the silo pump body, the air pump air inlet pipe is connected to an air pump air return pipe 32, the air pump air return pipe is provided with an air pipe manual butterfly valve 33, the feed port of the silo pump body is connected to the powder tank 1, and the discharge port 34 of the silo pump body is connected to the conveying pipe 4.

[0021] During the implementation process, when the silo pump structure is working normally, the manual butterfly valve for powder is opened, and the powder in the powder tank enters the silo pump body. Then the manual butterfly valve for powder is closed, and the valve on the air pump inlet pipe is opened. Air flow is introduced into the silo pump body through the air pump inlet pipe to fluidize the powder in the silo pump body. When the pressure in the silo pump reaches a value sufficient to convey the powder, the discharge port of the silo pump body is opened, and the powder is conveyed to the temporary storage silo through the conveying pipe.

[0022] The delivery pipe is provided with an air pump discharge pipeline butterfly valve 35 near the discharge port of the silo pump body to control the discharge of the delivery pipe. The delivery pipe is also provided with a delivery pipeline butterfly valve 36.

[0023] There are several powder tanks and several silo pump structures. The materials in the batching machine 10 enter the powder tank, silo pump structure, powder temporary storage bin, powder metering hopper in sequence through the inclined belt conveyor 11, and then enter the mixing main building 9 for mixing. The mixing main building is also equipped with an additive tank, a control room, etc., which belong to the conventional settings of the mixing station and will not be described here.

[0024] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mixing station using a silo pump to transport powder, characterized in that: The invention comprises a powder tank (1), the bottom of the powder tank (1) is connected to a silo pump structure (3) through a manual powder butterfly valve (2), the bottom of the silo pump structure is connected to a powder temporary storage bin (5) through a conveying pipe (4), the powder in the powder temporary storage bin (5) enters a powder metering hopper (8) through a pneumatic butterfly valve (6) and a flexible connection (7), so as to realize the conveyance of the powder, and the powder in the powder metering hopper then enters a mixing main building (9) for mixing.

2. The mixing station for conveying powder using a silo pump according to claim 1, characterized in that: The silo pump structure comprises a silo pump body (30), an air pump air inlet pipe (31) provided on the silo pump body, an air pump air return pipe (32) connected to the air pump air inlet pipe, an air pipe manual butterfly valve (33) provided on the air pump air return pipe, a feed port of the silo pump body connected to the powder tank (1), and a feed port (34) of the silo pump body connected to the conveying pipe (4).

3. The mixing station for conveying powder using a silo pump according to claim 1, characterized in that: The conveying pipe is provided with an air pump discharge pipeline butterfly valve (35) near the discharge port of the silo pump body.

4. The mixing station for conveying powder using a silo pump according to claim 1, characterized in that: The delivery pipe is also provided with a delivery pipe butterfly valve (36).

5. The mixing station for conveying powder using a silo pump according to claim 2, characterized in that: There are several powder tanks and several silo pump structures. The materials in the batching machine (10) enter the powder tank, silo pump structure, powder temporary storage bin, powder metering hopper in sequence through the inclined belt conveyor (11), and then enter the mixing main building (9) for mixing.

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