Movable premixed dry powder production line with overhead stock bin

Abstract

A movable premixed dry powder production line with an overhead stock bin is characterized in that a stock bin box is placed on a box body of the premixed dry powder flow production line and is fixedly connected with the box body through positioning pins, and a bucket elevator, a filter and a feeding pipe are in bolted connection with the stock bin box and are provided with sealing rings; the spiral sand conveying pipe, the spiral fly ash conveying pipe and the spiral cement conveying pipe are in bolted connection with the conical storage bin in the bin box, the upper portion of the discharging pipe is in bolted connection with the spiral sand conveying pipe, the spiral fly ash conveying pipe and the spiral cement conveying pipe, and the lower portion of the discharging pipe is connected with a stirrer of the premixed dry powder flowing production line through soft cloth. And the electromagnetic switch is arranged on the cement feeding bin of the feeding pipe and the coal ash feeding pipeline. According to the device, a box-type batching system is matched with a flow type production method, an original material loading mode is converted into a flat-transfer gravity blanking mode, the energy consumption is reduced, the production area is reduced to 50% of the original usable area, the aim of rapidly producing the grouting material on site is achieved, the site space is effectively utilized, and the use scene is expanded.

Description

Technical Field

[0001] The invention belongs to the field of railway tunnel secondary lining concrete grouting material production, and in particular relates to a mobile premixed dry powder material production line with an overhead silo. Background Art

[0002] During tunnel construction, the phenomenon of voids behind the secondary lining is common. In order to improve this quality defect, grouting must be used to compact the void area behind the secondary lining concrete to ensure the overall strength of the lining concrete and enhance the waterproof function. At present, a mobile production line for premixed dry powder materials has been invented. The side-lying batching silo adopts a silo body to partially solve the problems of large loading area and mostly fixed loading. However, it also has a large floor space. The loading is a method of loading from bottom to top with multiple screw machines. The loading angle must not be too large. In view of the above defects, how to solve the on-site mobile production of tunnel grouting materials with a smaller floor space requires a new device to solve this problem. Summary of the invention

[0003] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a mobile premixed dry powder production line with an overhead silo, which solves the problem of on-site mobile production of tunnel grouting materials with a smaller footprint and can effectively utilize on-site space, thus expanding the use scenarios of the premixed dry powder mobile production line.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A mobile premixed dry powder production line with a top silo comprises a silo box (3), characterized in that the silo box (3) is placed on a box body of a premixed dry powder flow production line (1) and connected and fixed by means of positioning pins (2); a bucket elevator (4), a filter (7) and a feed pipe (11) are bolted to the silo box (3) and provided with a sealing ring; a sand material spiral feed pipe (5), a fly ash spiral feed pipe (9) and a cement spiral feed pipe (10) are bolted to a conical storage bin inside the silo box (3); an upper portion of a feed pipe (6) is bolted to the sand material spiral feed pipe (5), the fly ash spiral feed pipe (9) and the cement spiral feed pipe (10); a lower portion of the feed pipe (6) is connected to a mixer of the premixed dry powder flow production line (1) by means of a soft cloth; and an electromagnetic switch (8) is provided on the feed pipe (11) into the cement silo and the fly ash feed pipe line.

[0005] The silo box (3) is rectangular and consists of a frame, three conical storage silos, and an outer cover. The three conical storage silos are all provided with circular feed inlets and air outlets. The lower frame of the silo box (3) is provided with a plurality of circular positioning rings and is arranged at a docking position with the premixed dry powder flow production line (1) at the lower part.

[0006] The bucket elevator (4), the sand material spiral conveying pipe (5), the electromagnetic switch (8), the fly ash spiral conveying pipe (9), and the cement spiral conveying pipe (10) are connected to the control and power distribution system of the premixed dry powder flow production line (1) through cables and signal lines.

[0007] The sand material spiral conveying pipe (5), fly ash spiral conveying pipe (9), and cement spiral conveying pipe (10) are connected to the three conical storage bins of the silo box (3) through circular holes at the ends.

[0008] The bucket elevator (4) is Z-shaped, and its lower part is fixedly connected to the ground by expansion bolts.

[0009] The beneficial effects of the present invention are: The present invention adopts a box-type batching system in conjunction with a mobile production method, innovates traditional fixed loading and horizontal loading, and arranges a box-type batching bin above the mobile production line, transforming the original upper loading mode into horizontal gravity feeding, thereby reducing energy consumption and reducing the production area to 50% of the original usage area. It provides a new batching method for the premixed dry powder mobile production line, achieves the purpose of rapid on-site production of grouting materials, can effectively utilize on-site space, and expands the use scenarios of the premixed dry powder mobile production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a top view schematic diagram of the invention.

[0011] Among them, 1 is a premixed dry powder flow production line, 2 is a positioning pin, 3 is a silo box, 4 is a bucket elevator, 5 is a spiral conveying pipe for sand, 6 is a discharge pipe, 7 is a filter, 8 is an electromagnetic switch, 9 is a spiral conveying pipe for fly ash, 10 is a spiral conveying pipe for cement, and 11 is a feed pipe. DETAILED DESCRIPTION

[0012] The present invention is further described below in conjunction with the accompanying drawings.

[0013] like Figure 1 As shown, a mobile premixed dry powder production line with an overhead silo is characterized in that it includes a silo box 3 placed on the box body of the premixed dry powder flow production line 1 and connected and fixed by a locating pin 2, a bucket elevator 4, a filter 7, a feed pipe 11 and corresponding parts of the silo box 3 are all bolted and provided with sealing rings, a spiral feed pipe 5 for sand, a spiral feed pipe 9 for fly ash, and a spiral feed pipe 10 for cement are bolted to the conical storage bin in the silo box 3, an upper part of a feed pipe 6 is bolted to the spiral feed pipe 5 for sand, the spiral feed pipe 9 for fly ash, and the spiral feed pipe 10 for cement, a lower part of the feed pipe 6 is connected to the mixer of the premixed dry powder flow production line 1 by a soft cloth, and an electromagnetic switch 8 is provided on the feed pipe 11 entering the cement silo and the fly ash feed pipeline.

[0014] The silo box 3 is rectangular and consists of a frame, three conical storage silos and an outer envelope. The three conical storage silos are all provided with circular feed inlets and air outlets. The lower frame of the silo box 3 is provided with multiple circular positioning rings and is arranged at a docking position with the premixed dry powder flow production line 1 at the bottom.

[0015] The bucket elevator 4, the sand spiral feed pipe 5, the electromagnetic switch 8, the fly ash spiral feed pipe 9, and the cement spiral feed pipe 10 are connected to the control and power distribution system of the premixed dry powder flow production line 1 through cables and signal lines.

[0016] The spiral conveying pipe 5 for sand material, the spiral conveying pipe 9 for fly ash and the spiral conveying pipe 10 for cement are connected with the three conical storage bins of the silo box 3 through circular holes at the ends.

[0017] The bucket elevator 4 is Z-shaped, and its lower side is fixedly connected to the ground by expansion bolts.

[0018] The working principle of the present invention is: This device innovates the traditional fixed and horizontal feeding by adopting a box-type batching system in conjunction with a mobile production method, and sets a box-type batching bin above the mobile production line, changing the original upper feeding mode into horizontal gravity feeding. First, the premixed dry powder flow production line is positioned and fixed, and then the top silo is hoisted to the top of the production line and positioned, and the positioning pins are inserted for restraint and fixation; the feeding pipe is connected to the sand spiral feeding pipe, fly ash spiral feeding pipe, and cement spiral feeding pipe above, and is softly connected to the main machine of the premixed dry powder flow production line below; the bucket elevator is connected to the sand bin in the silo box, and the lower part is fixed to the hardened ground with expansion bolts; the power and control system of the premixed dry powder flow production line are connected to the power and control parts of the device, and the whole machine is debugged, and construction and production are carried out after passing the test.

[0019] During production, appropriate amounts of cement, fly ash, and machine-made sand are pumped into the top-mounted batching bin, and the masterbatch ratio is input. The device automatically feeds fly ash and unloads the material, and then reagents are manually added for forced mixing to produce the masterbatch. During the secondary compounding, the control room inputs the grouting material ratio, and the qualified masterbatch is automatically placed in the manual feeding bin for automatic loading. Cement and machine-made sand are automatically fed and unloaded through the spiral feeding pipe and then directly fed into the main machine in the mixing area. After the powder materials are forced to be evenly mixed, they are transported to the pressurized quantitative packaging machine for packaging, and then transported to the storage area by forklift for inspection and use.

Claims

1. A mobile premixed dry powder production line with an overhead silo, comprising a silo box (3), characterized in that: The silo box (3) is placed on the box body of the premixed dry powder material flow production line (1) and connected and fixed by means of positioning pins (2); the bucket elevator (4), the filter (7) and the feed pipe (11) are bolted to the silo box (3) and provided with a sealing ring; the sand material spiral feed pipe (5), the fly ash spiral feed pipe (9) and the cement spiral feed pipe (10) are bolted to the conical storage bin inside the silo box (3); the upper part of the feed pipe (6) is bolted to the sand material spiral feed pipe (5), the fly ash spiral feed pipe (9) and the cement spiral feed pipe (10); the lower part of the feed pipe (6) is connected to the mixer of the premixed dry powder material flow production line (1) by means of a soft cloth; and the electromagnetic switch (8) is arranged on the feed pipe (11) into the cement silo and the fly ash feed pipe line.

2. The mobile premixed dry powder production line with an overhead silo according to claim 1, characterized in that: The silo box (3) is rectangular and consists of a frame, three conical storage silos, and an outer cover. The three conical storage silos are all provided with circular feed inlets and air outlets. The lower frame of the silo box (3) is provided with a plurality of circular positioning rings and is arranged at a docking position with the premixed dry powder flow production line (1) at the lower part.

3. The mobile premixed dry powder production line with an overhead silo according to claim 1, characterized in that: The bucket elevator (4), the sand material spiral conveying pipe (5), the electromagnetic switch (8), the fly ash spiral conveying pipe (9), and the cement spiral conveying pipe (10) are connected to the control and power distribution system of the premixed dry powder flow production line (1) through cables and signal lines.

4. The mobile premixed dry powder production line with an overhead silo according to claim 1, characterized in that: The sand material spiral conveying pipe (5), fly ash spiral conveying pipe (9), and cement spiral conveying pipe (10) are connected to the three conical storage bins of the silo box (3) through circular holes at the ends.

5. The mobile premixed dry powder production line with an overhead silo according to claim 1, characterized in that: The bucket elevator (4) is Z-shaped, and its lower part is fixedly connected to the ground by expansion bolts.

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