Fly ash guniting material long-distance pneumatic conveying device

Abstract

The utility model relates to the technical field of material conveying, in particular to a long-distance pneumatic conveying device for coal ash guniting materials, which comprises a bottom plate, a feeding mechanism is arranged at the upper end of the bottom plate, the lower end of the feeding mechanism is connected with a mixing mechanism, and a plurality of materials are added into the mixing mechanism through the feeding mechanism to be mixed. A material ejecting assembly is arranged in the lower side of the material mixing mechanism; a three-way electromagnetic valve can start to control a gas storage tank to be communicated with a first connecting pipe and control a gas leakage electromagnetic valve to release pressure at the same time, gas enters a material guide pipe through the first connecting pipe and pushes a sliding plate to move upwards, and an ejector rod moves upwards to dredge materials blocked in the material guide pipe firstly and push and clean the materials blocked in the material guide pipe; and the situation that when the discharging valve is opened, materials mixed with solid particles cannot enter the pipeline through the discharging valve due to blockage is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to material conveying technical field, concretely is a fly ash shotcrete material long distance pneumatic conveying device. BACKGROUND

[0002] Such as the announcement number for CN215619132U Chinese patent, it discloses a fly ash shotcrete material long distance pneumatic conveying system, including mixing stirring system, pneumatic conveying system and PLC control cabinet, the mixing stirring system includes weighing batching machine, feeder and mixing bin, and the pneumatic conveying system includes bin pump, gas storage tank, material receiving buffer bin, screw conveyor and pneumatic conveying receiving tank, cement, fly ash and additive are added to the mixing bin according to proportion.

[0003] But the above scheme has the following insufficient: the patent is filled in through bin pump, when the pump is full, the feeding valve is closed, the air inlet valve is opened, the bin pump starts to be aerated and fluidized, when the pressure in the pump rises to the upper limit pressure set by the pressure transmitter, the bin pump discharge valve is opened, the solid-gas mixture in the pump is finally conveyed to the receiving pipe through the pipeline, and finally sprayed out after mixing with water through the spray gun head, but in the process of use, when the solid particles in the additive are more, in the process of aerating and fluidizing the bin pump, with the continuous increase of gas pressure, the material mixed with solid particles may be accumulated and extruded and blocked at the connecting part between the discharge valve and the bin pump, so that when the discharge valve is opened, the material mixed with solid particles cannot enter the pipeline through the discharge valve, therefore, we provide a fly ash shotcrete material long distance pneumatic conveying device. Utility model content

[0004] The utility model aims at providing a fly ash shotcrete material long distance pneumatic conveying device to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A fly ash shotcrete material long distance pneumatic conveying device, including the bottom plate, the bottom plate upper end is equipped with the feeding mechanism, the feeding mechanism lower extreme is connected with the mixing mechanism, through the feeding mechanism, several kinds of materials are added to the mixing mechanism and mixed, the mixing mechanism lower side is equipped with the top material subassembly, when the material in the mixing mechanism is blocked, the top material subassembly is used for lifting and dredging the blocked material, one side of the mixing mechanism is fixedly connected with the second electromagnetic valve, one end of the second electromagnetic valve is fixedly connected with the guide pipe, the guide pipe is fixedly connected with the material receiving buffer box away from the second electromagnetic valve one end;

[0007] The lower end of the material receiving buffer tank is fixedly connected with a screw conveyor, one end of the screw conveyor away from the material receiving buffer tank is fixedly connected with a third electromagnetic valve, the third electromagnetic valve is fixedly connected with one end of a pneumatic conveying receiving tank, another third electromagnetic valve is also fixedly connected with the upper end of the pneumatic conveying receiving tank, second connecting pipes are fixedly connected with both ends of the pneumatic conveying receiving tank, and a filter plate is fixedly connected with the upper end of the material receiving buffer tank.

[0008] Preferably, the feeding mechanism comprises a feeding hopper, a cover is connected with the upper end of the feeding hopper, the lower end of the feeding hopper is fixedly connected with a bottom plate, a first electromagnetic valve is fixedly connected with the lower end of the feeding hopper, and the first electromagnetic valve is connected with a mixing mechanism.

[0009] Preferably, the mixing mechanism comprises a bin pump, a material guide pipe is fixedly connected with the lower end of the bin pump, a material lifting assembly is arranged in the material guide pipe, a three-way electromagnetic valve is fixedly connected with one side of the bin pump, the three-way electromagnetic valve is fixedly connected with a gas storage tank and a first connecting pipe respectively, the first connecting pipe is fixedly connected with the material guide pipe away from the three-way electromagnetic valve, a second electromagnetic valve is fixedly connected with one side of the material guide pipe, a gas releasing electromagnetic valve is fixedly connected with the upper end of the bin pump, and a material level meter and a pressure transmitter are arranged in the bin pump.

[0010] Preferably, the material lifting assembly comprises a lifting plate, the lifting plate is arranged in the material guide pipe, sliding blocks are fixedly connected with both ends of the material guide pipe, the sliding blocks are slidably connected in sliding grooves, the sliding grooves are arranged in the inner side of the material guide pipe, two lifting rods are movably connected in the lifting plate, the lower ends of the lifting rods are fixedly connected with a sliding plate, and the sliding plate is slidably connected in the material guide pipe.

[0011] Preferably, the lower end of the sliding plate is fixedly connected with a traction rope, one end of the traction rope away from the sliding plate extends into a connecting cavity and is fixedly connected with a connecting plate, the connecting plate is slidably connected in the connecting cavity, the connecting cavity is arranged in the bottom plate, a connecting spring is sleeved with the outer side of the traction rope, one end of the connecting spring is fixedly connected with the connecting cavity, and the other end of the connecting spring is fixedly connected with the connecting plate.

[0012] Compared with the prior art, the bin pump is provided with the pressure transmitter, the three-way electromagnetic valve, the gas releasing electromagnetic valve and the second electromagnetic valve, and the three-way electromagnetic valve is connected with the first connecting pipe and the gas storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a sectional view structural schematic diagram of the utility model;

[0014] Figure 2 It is a sectional view structural schematic diagram of the utility model bin pump and guide pipe connection relation;

[0015] Figure 3 It is a guide pipe and second electromagnetic valve connection relation three-dimensional structural schematic diagram of the utility model;

[0016] Figure 4 It is a guide pipe and slide connection relation three-dimensional sectional view structural schematic diagram of the utility model.

[0017] In the drawing: 1, material cover; 2, guide pipe; 3, feeding hopper; 4, bin pump; 5, air release electromagnetic valve; 6, first electromagnetic valve; 7, three-way electromagnetic valve; 8, gas storage tank; 9, first connecting pipe; 10, guide pipe; 11, bottom plate; 12, filter plate; 13, material receiving buffer tank; 14, spiral conveyor; 15, third electromagnetic valve; 16, pneumatic conveying material receiving tank; 17, connecting plate; 18, second connecting pipe; 19, second electromagnetic valve; 20, chute; 21, material lifting plate; 22, material lifting rod; 23, sliding block; 24, slide; 25, traction rope; 26, connecting spring; 27, connecting cavity. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0020] Embodiment 1:

[0021] A fly ash shotcrete material long-distance pneumatic conveying device, including bottom plate 11, the bottom plate 11 upper end is equipped with feeding mechanism, and the feeding mechanism lower end is connected with mixing mechanism, and the feeding mechanism includes the feeding hopper 3, the feeding hopper 3 upper end is clamped with material cover 1, and the feeding hopper 3 lower end is fixedly connected with bottom plate 11, and the feeding hopper 3 lower end is fixedly connected with first electromagnetic valve 6, and first electromagnetic valve 6 lower end is connected with mixing mechanism, and cement, sand, stone and additive are added into feeding hopper 3 to carry out initial mixing, after pouring, material cover 1 is covered on the upper end of feeding hopper 3 again, and first electromagnetic valve 6 is opened so that the mixed material enters into mixing mechanism;

[0022] The top material assembly is arranged in the lower side of the mixing mechanism. When the material in the mixing mechanism is blocked, the blocked material is lifted and dredged by the top material assembly. The second electromagnetic valve 19 is fixedly connected to one side of the mixing mechanism. One end of the second electromagnetic valve 19 is fixedly connected to the guide pipe 2. The end of the guide pipe 2 away from the second electromagnetic valve 19 is fixedly connected to the material receiving buffer tank 13. By opening the second electromagnetic valve 19, the mixed material in the bin pump 4 enters the guide pipe 2 and finally enters the material receiving buffer tank 13,

[0023] The lower end of the material receiving buffer tank 13 is fixedly connected to the screw conveyor 14. The screw conveyor 14 includes a housing, a screw conveying rod, and a motor. The screw conveying rod is driven to rotate by the motor. The screw conveying rod rotates to convey the material in the material receiving buffer tank 13 into the housing. The end of the screw conveyor 14 away from the material receiving buffer tank 13 is fixedly connected to the third electromagnetic valve 15. The third electromagnetic valve 15 is fixedly connected to one end of the pneumatic conveying material receiving tank 16. Another third electromagnetic valve 15 is also fixedly connected to the upper end of the pneumatic conveying material receiving tank 16. The second connecting pipe 18 is fixedly connected to both ends of the pneumatic conveying material receiving tank 16. The filter plate 12 is fixedly connected to the upper end of the material receiving buffer tank 13.

[0024] Example 2:

[0025] On the basis of example 1, in order to dredge the material in the mixing mechanism when it is blocked, the mixing mechanism includes a bin pump 4. The bin pump 4 is provided with a material level meter and a pressure transmitter. The lower end of the bin pump 4 is fixedly connected to the material guide pipe 10. The material guide pipe 10 is provided with a top material assembly. One side of the bin pump 4 is fixedly connected to the three-way electromagnetic valve 7. The three-way electromagnetic valve 7 is fixedly connected to the air tank 8 and the first connecting pipe 9, respectively. The end of the first connecting pipe 9 away from the three-way electromagnetic valve 7 is fixedly connected to the material guide pipe 10. The material guide pipe 10 is fixedly connected to the second electromagnetic valve 19 on one side. The upper end of the bin pump 4 is fixedly connected to the air release electromagnetic valve 5. The first electromagnetic valve 6 and the air release electromagnetic valve 5 are opened. After the first electromagnetic valve 6 is started, the mixed material enters the bin pump 4. After the air release electromagnetic valve 5 is opened, the bin pump 4 is depressurized to balance the pressure in the bin pump 4, so that the material in the feeding hopper 3 can smoothly enter the bin pump 4. The upper end of the air release electromagnetic valve 5 is also fixedly connected to a filter screen. By arranging the filter screen, dust particles can be filtered and blocked in the bin pump 4 when the air is released.

[0026] The top material assembly comprises a top material plate 21 arranged in the material guide pipe 10, both ends of the material guide pipe 10 are fixedly connected with sliding blocks 23, the sliding blocks 23 are slidably connected in the sliding groove 20, the sliding groove 20 is arranged on the inner side of the material guide pipe 10, two top material rods 22 are movably connected in the top material plate 21, the lower end of the top material rod 22 is fixedly connected with a sliding plate 24, the sliding plate 24 is slidably connected in the material guide pipe 10, the three-way electromagnetic valve 7 is started to control the air tank 8 to be communicated with the first connecting pipe 9, and the air release electromagnetic valve 5 is started to release pressure, the gas enters the material guide pipe 10 through the first connecting pipe 9, and the sliding plate 24 is pushed to move upwards, the sliding plate 24 moves upwards to drive the two top material rods 22 to move synchronously, the top material rod 22 moves upwards to dredge the material blocked in the material guide pipe 10, when the protrusion of the top material rod 22 is in contact with the top material plate 21, the top material plate 21 is moved synchronously when the top material rod 22 moves upwards, and the top material plate 21 moves upwards to push and clean the material blocked in the material guide pipe 10;

[0027] The lower end of the sliding plate 24 is fixedly connected with a traction rope 25, one end of the traction rope 25 away from the sliding plate 24 extends into the connecting cavity 27 and is fixedly connected with the connecting plate 17, the connecting plate 17 is slidably connected in the connecting cavity 27, the connecting cavity 27 is arranged in the bottom plate 11, the connecting spring 26 is sleeved outside the traction rope 25, one end of the connecting spring 26 is fixedly connected with the connecting cavity 27, and the other end is fixedly connected with the connecting plate 17, the sliding plate 24 moves upwards to drive the traction rope 25 to start to move, the traction rope 25 moves to drive the connecting plate 17 to move, and the connecting plate 17 compresses the connecting spring 26 when moving.

[0028] Working principle, in use, cement, sand, stone and additives are respectively added into the feeding hopper 3 to be initially mixed, after pouring, the material cover 1 is re-covered on the upper end of the feeding hopper 3, the first electromagnetic valve 6 and the air release electromagnetic valve 5 are opened, the first electromagnetic valve 6 is started to make the mixed material enter the warehouse pump 4, the air release electromagnetic valve 5 is opened to release pressure in the warehouse pump 4, so that the pressure in the warehouse pump 4 is balanced, the material in the feeding hopper 3 can smoothly enter the warehouse pump 4, and the upper end of the air release electromagnetic valve 5 is also fixedly connected with a filter screen, through the arrangement of the filter screen, dust particles can be filtered and blocked in the warehouse pump 4 when releasing air;

[0029] When the material level meter in the bin pump 4 detects that the material is full, the material level meter will send a signal to control the first electromagnetic valve 6 and the air release electromagnetic valve 5 to close, and the three-way electromagnetic valve 7 will start to connect the gas tank 8 with the bin pump 4, and the gas in the gas tank 8 will enter the bin pump 4 to start the gas fluidization, when the pressure in the bin pump 4 rises to the upper limit pressure set by the pressure transmitter, the second electromagnetic valve 19 will start, and the solid-gas mixture in the bin pump 4 will be transported through the guide pipe 2, as the amount of material in the bin pump 4 decreases, the pressure in the pump also decreases, and when the pressure decreases to the lower limit pressure set by the pressure transmitter, the pipeline is purged for a certain time, then the three-way electromagnetic valve 7 and the second electromagnetic valve 19 are closed, the first electromagnetic valve 6 is opened, and the material in the feeding hopper 3 enters the bin pump 4, and the cycle continues;

[0030] The solid-gas mixture entering the guide pipe 2 will enter the material receiving buffer tank 13 for further mixing, the gas will be discharged to the external environment through the upper end of the material receiving buffer tank 13, the filter plate 12 will filter the floating dust particles, the mixture will be transported to the third electromagnetic valve 15 through the screw conveyor 14, and then enter the pneumatic conveying receiving tank 16 through the third electromagnetic valve 15, when the mixture is all in the pneumatic conveying receiving tank 16, the third electromagnetic valve 15 is closed, the left second connecting pipe 18 is connected with the air source, and the right second connecting pipe 18 is connected with the spray gun head, the gas entering through the left second connecting pipe 18 will transport the mixture to the spray gun head, the material will be mixed with water in the spray gun head, and under the action of compressed air, a high-speed mud jet will be formed and sprayed onto the shotcrete body;

[0031] When the mixture is blocked in the guide pipe 10, the pressure transmitter detects that the second electromagnetic valve 19 is opened, and the pressure in the bin pump 4 is still rising, the three-way electromagnetic valve 7 will start to control the gas tank 8 to be connected with the first connecting pipe 9, and the air release electromagnetic valve 5 will start to release pressure, the gas will enter the guide pipe 10 through the first connecting pipe 9 and push the sliding plate 24 to move upward, the upward movement of the sliding plate 24 will drive the two material lifting rods 22 to move synchronously, the upward movement of the material lifting rods 22 will drive the material lifting plate 21 to move synchronously, and the upward movement of the material lifting plate 21 will push and clean the material blocked in the guide pipe 10;

[0032] After cleaning, the three-way electromagnetic valve 7 controls the bin pump 4 to be connected with the first connecting pipe 9, the excess gas is discharged to the external environment through the air release electromagnetic valve 5, under the action of the elastic force of the connecting spring 26, the connecting plate 17 moves to the right and drives the traction rope 25 to move, so that the sliding plate 24 and the material lifting plate 21 return to the initial position, and the gas tank 8 is connected with the bin pump 4 through the three-way electromagnetic valve 7 for transportation.

[0033] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A device for long distance pneumatic conveying of a fly ash gunite material comprising a base plate, characterised in that: The bottom plate upper end is provided with a feeding mechanism, the feeding mechanism lower end is connected with a mixing mechanism, through the feeding mechanism, several materials are added to the mixing mechanism for mixing, the mixing mechanism lower side is internally provided with a material lifting assembly, when the material in the mixing mechanism is blocked, the material lifting assembly is used for lifting the blocked material, the mixing mechanism one side is fixedly connected with a second electromagnetic valve, the second electromagnetic valve one end is fixedly connected with a guide pipe, the guide pipe far end from the second electromagnetic valve is fixedly connected with a material receiving buffer tank, the material receiving buffer tank lower end is fixedly connected with a screw conveyor, the screw conveyor far end from the material receiving buffer tank is fixedly connected with a third electromagnetic valve, the third electromagnetic valve is fixedly connected to one end of a pneumatic conveying material receiving tank, the pneumatic conveying material receiving tank upper end is also fixedly connected with another third electromagnetic valve, the pneumatic conveying material receiving tank two ends are fixedly connected with second connecting pipes, and the material receiving buffer tank upper end is fixedly connected with a filter plate. The feeding mechanism comprises a feeding hopper, the feeding hopper upper end is clamped with a material cover, the feeding hopper lower end is fixedly connected with the bottom plate, the feeding hopper lower end is fixedly connected with a first electromagnetic valve, and the first electromagnetic valve lower end is connected with the mixing mechanism.

2. The long distance pneumatic conveying device for fly ash mortar material according to claim 1, characterized in that: The mixing mechanism comprises a bin pump, the bin pump lower end is fixedly connected with a material guide pipe, the material guide pipe is internally provided with a material lifting assembly, the bin pump one side is fixedly connected with a three-way electromagnetic valve, the three-way electromagnetic valve is respectively fixedly connected with a gas storage tank and a first connecting pipe, the first connecting pipe far end from the three-way electromagnetic valve is fixedly connected with the material guide pipe, the material guide pipe one side is fixedly connected with a second electromagnetic valve, the bin pump upper end is fixedly connected with a gas release electromagnetic valve, and the bin pump is internally provided with a material level meter and a pressure transmitter.

3. A long distance pneumatic conveying device for fly ash slurry material according to claim 2, characterized in that: The material lifting assembly comprises a material lifting plate, the material lifting plate is arranged in the material guide pipe, the material guide pipe two ends are fixedly connected with sliding blocks, the sliding blocks are slidably connected in sliding grooves, the sliding grooves are arranged in the material guide pipe inner side, the material lifting plate is movably connected with two material lifting rods, the material lifting rods lower end are fixedly connected with a sliding plate, and the sliding plate is slidably connected in the material guide pipe.

4. The long distance pneumatic conveying device for fly ash mortar material according to claim 3, characterized in that: The sliding plate lower end is fixedly connected with a traction rope, the traction rope far end from the sliding plate is inserted into a connecting cavity and is fixedly connected with a connecting plate, the connecting plate is slidably connected in the connecting cavity, the connecting cavity is arranged in the bottom plate, and the traction rope outer side is sleeved with a connecting spring, one end of the connecting spring is fixedly connected with the connecting cavity, and the other end is fixedly connected with the connecting plate.

5. A device for long distance pneumatic conveying of fly ash slurry material according to claim 4, characterized in that: ​

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