CN214499155U

CN214499155U - Full pipe flow filling and blanking device

Info

Publication number: CN214499155U
Application number: CN202120490357.8U
Authority: CN
Inventors: 孙冠男; 巴家泓; 周育; 刘召胜
Original assignee: Northern Engineering and Technology Corp MCC
Current assignee: Northern Engineering and Technology Corp MCC
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-10-26
Anticipated expiration: 2031-03-08

Abstract

The utility model belongs to the technical field of the mining fills, especially, relate to a full duct flow fills unloader, its characterized in that includes the box of compriseing the open vertical section in upper portion and bottom back taper section, sets up the grizzly of vertical section and bottom back taper section combination position sets up the inlet pipe at box top sets up the delivery pipe at box top sets up the discharging pipe that bottom half and front end and box were arranged with one heart sets up the ware that only revolves that just arranges with the discharging pipe is concentric at this discharging pipe top. The utility model discloses both can realize filling the full duct flow unloading of ground paste and carry, can effectively avoid gaseous sneaking into again at the unloading in-process.

Description

Full pipe flow filling and blanking device

Technical Field

The utility model belongs to the technical field of the mining fills, especially, relate to a full duct flow fills unloader.

Background

It is well known that non-full pipe flow of the fill slurry is a significant cause of wear and tear in vertical fill pipes or fill boreholes, and that wear is most severe at the air-slurry interface. During mine filling operation, a large amount of gas is easily mixed into the stirred filling slurry or the inverted-section depressurized filling slurry of the deep well in the process of blanking to a vertical filling pipeline or filling drilling, and a large amount of gas masses are formed in the filling pipeline or the filling drilling and are in an intermittent gas-slurry state. On one hand, the pressure in the pipe is unstable, and the receiving hopper is caused to spray slurry, return materials and even block the pipe; on the other hand, the gas is compressed and moves synchronously with the filling slurry, when the compressed gas moves to the discharge end of the filling pipeline, the pressure is instantaneously reduced to generate gas explosion, and the gas explosion can enable the filling pipeline to jump and wave and even cause accidents of hurting people.

Disclosure of Invention

The utility model aims at providing a can both realize filling the full duct flow unloading of ground paste and carry, can effectively avoid gaseous full duct flow that sneaks into again at the unloading in-process to fill unloader.

The purpose of the utility model is realized by the following technical scheme:

the utility model discloses a full pipe flow filling blanking device, which is characterized by comprising a box body consisting of a vertical section with an open upper part and a reverse taper section at the bottom, a grizzly screen arranged at the combination part of the vertical section and the reverse taper section at the bottom, an inlet pipe arranged at the top of the box body, a water supply pipe arranged at the top of the box body, a discharging pipe arranged at the bottom of the box body and with the front end concentric with the box body, a rotation stopping device arranged at the top of the discharging pipe and concentric with the discharging pipe,

the front end of the feed pipe is connected with a discharge port of the filling and stirring system, the front end of the water supply pipe is connected with an external water supply system, the tail ends of the feed pipe and the water supply pipe both extend into the inner cavity of the box body from the top of the box body,

the rotation stopper comprises a top plate and a plurality of baffle plates which are arranged below the top plate and are uniformly distributed around the central line of the discharge pipe and are vertical to the side walls of the inverted cone sections at the top plate and the bottom,

the pipe internal diameter of discharging pipe is the same with the pipe internal diameter of inlet pipe.

The top of the box body is provided with a material level meter, and the cone angle alpha of the inverted cone section at the bottom of the box body is = 120-150 degrees.

The inlet pipe on be equipped with electric switch valve I, electronic flow control valve and electromagnetic flowmeter, electric switch valve I be the electronic wear-resisting pipe clamp valve of switch type, electronic flow control valve is the electronic wear-resisting pipe clamp valve of regulation type.

And an electric switch valve II is arranged on the water supply pipe.

And an electric switch valve III is arranged on the discharge pipe and is an on-off type electric wear-resistant pipe clamp valve.

The number of the baffle plates is at least 4, and the included angle beta between the inclined edge of each baffle plate and the center line of the discharge pipe is =0.5 alpha.

The utility model has the advantages that:

(1) the full pipe flow filling and blanking device has simple structure and convenient operation, can realize the full pipe flow blanking and conveying of filling slurry, and reduces the abrasion of pipelines;

(2) the full pipe flow filling and blanking device can effectively avoid the formation of vortex at the pipe orifice of the discharging pipe in the blanking process, prevent gas from mixing, avoid the occurrence of the conditions of slurry spraying, material returning, pipe blocking, gas explosion, gas erosion and the like caused by the mixed gas, indirectly prolong the service life of the pipeline, and avoid the injury accidents caused by the jumping and waving of the filling pipeline;

(3) the utility model discloses a full duct flow fills unloader can screen out bold or debris, avoids it to cause stifled pipe after filling the ground paste entering pipeline.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1 according to the present invention.

Fig. 3 is a schematic structural view of the rotation stopping device of the present invention.

Fig. 4 is a bottom view of fig. 3 according to the present invention.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

As shown in figures 1-4, the full pipe flow filling and blanking device of the utility model is characterized in that the full pipe flow filling and blanking device comprises a box body 1 consisting of a vertical section with an open upper part and a reverse taper section at the bottom, a grizzly screen 2 arranged at the joint part of the vertical section and the reverse taper section at the bottom, a feeding pipe 3 arranged at the top of the box body 1, a water supply pipe 4 arranged at the top of the box body 1, a discharging pipe 5 arranged at the bottom of the box body 1 and with the front end concentric with the box body 1, a rotation stopping device 6 arranged at the top of the discharging pipe 5 and with the discharging pipe 5,

the front end of the feeding pipe 3 is connected with a discharge port of a filling and stirring system, the front end of the water supply pipe 4 is connected with an external water supply system, the tail ends of the feeding pipe 3 and the water supply pipe 4 extend into the inner cavity of the box body 1 from the top of the box body 1,

the rotation stopper 6 comprises a top plate 61, a plurality of baffle plates 62 which are arranged below the top plate 61 and are uniformly distributed around the central line of the discharge pipe 5 and are vertical to the top plate 61 and the side wall of the inverted cone section at the bottom,

the pipe inner diameter of the discharge pipe 5 is the same as that of the feed pipe 3.

The top of the box body 1 is provided with a material level meter, and the cone angle alpha of the inverted cone section at the bottom of the box body 1 is = 120-150 degrees.

Inlet pipe 3 on be equipped with electric switch valve I31, electronic flow control valve 32 and electromagnetic flowmeter 33, electric switch valve I31 be the electronic wear-resisting pipe clamp valve of on-off type, electric flow control valve 32 is the electronic wear-resisting pipe clamp valve of regulation type.

And an electric switch valve II 41 is arranged on the water supply pipe 4.

An electric switch valve III 51 is arranged on the discharge pipe 5, and the electric switch valve III 51 is an on-off type electric wear-resistant pipe clamp valve.

The number of the baffle plates 62 is at least 4, and the included angle beta between the inclined edge of each baffle plate 62 and the central line of the discharge pipe 5 is =0.5 alpha.

A filling and blanking method using a full pipe flow filling and blanking device comprises the following steps:

(1) before filling and blanking, an electric switch valve II 41 on a water supply pipe 4 is started, and water is injected into the box body 1;

(2) when the water level reaches the blanking liquid level 200, closing the electric switch valve II 41, and then opening the electric switch valve I31 and the electric switch valve III 51 for blanking;

(3) the flow of the feeding pipe 3 is adjusted by an electric flow adjusting valve 32 and an electromagnetic flow meter 33, so that the liquid level in the box body 1 is maintained between the lowest liquid level 100 and the highest liquid level 300, and the filling slurry is discharged in a siphon full pipe flow manner;

(4) the filling slurry enters the box body 1 through the feeding pipe 3, large blocks or impurities are screened out through the grizzly screen 2, and then enter the discharging pipe 5 through flow passages between each baffle plate 62 of the rotation stopping device 6 and the top plate 61 and the side wall of the inverted cone section at the bottom of the box body 1 to be fed to a downstream vertical filling pipeline or a filling drill hole, so that gas is prevented from being mixed due to vortex formed at the pipe orifice of the discharging pipe 5;

(5) when the filling and blanking are finished, firstly closing the electric switch valve I31 on the feeding pipe 3, then opening the electric switch valve II 41 on the water supply pipe 4, injecting water into the box body 1 to empty the vertical pipeline or fill residual filling slurry in the drill hole, and finally closing the electric switch valve II 41 on the water supply pipe 4 and the electric switch valve III 51 on the discharging pipe 5 in sequence.

The invention is further described below with reference to specific examples:

adopting a full pipe flow filling blanking device as shown in figures 1-4, wherein the inner diameter of a vertical section of the box body 1 is 1000mm, the top of the box body is open, and the cone angle alpha of an inverted cone section at the bottom of the box body is =120 degrees; the grizzly screen 2 is circular, and the outer diameter is 990 mm; the inner diameter of the feeding pipe 3 is 150 mm; the inner diameter of the water supply pipe 4 is 125 mm; the inner diameter of the discharge pipe 5 is the same as that of the feed pipe 3 and that of the outlet at the bottom of the box body 1 and is 150 mm; top plate 61 diameter of rotation-stopping ware 6 is 350mm, and 5 central line equipartitions of discharging pipe have 4 perpendicular to top plate 61 and the box 1 bottom back taper section lateral wall under top plate 61, and be similar to right trapezoid's baffle 62, and the hypotenuse of

baffle

62 and 5 central line contained angles beta =60 of discharging pipe.

Practice shows, adopt the utility model discloses a full duct flow fills unloader and method after, both can realize filling the full duct flow unloading of ground paste and carry, can prevent effectively again that the unloading in-process is gaseous sneaking into. The utility model discloses a full duct flow fills unloader simple structure, convenient operation, the suitability is strong, and popularization prospect is good.

Claims

1. A full pipe flow filling and blanking device is characterized by comprising a box body, a grizzly screen, a feeding pipe, a water supply pipe, a discharging pipe and a rotation stopping device, wherein the box body is composed of a vertical section with an open upper part and a reverse taper section at the bottom, the grizzly screen is arranged at the joint part of the vertical section and the reverse taper section at the bottom, the feeding pipe is arranged at the top of the box body, the water supply pipe is arranged at the top of the box body, the discharging pipe is arranged at the bottom of the box body, the front end of the discharging pipe is concentric with the box body, the rotation stopping device is arranged at the top of the discharging pipe and is concentric with the discharging pipe,

2. The full pipe flow filling blanking device of claim 1, wherein the top of the box body is provided with a level gauge, and the cone angle of the inverted cone section at the bottom of the box body is alpha = 120-150 °.

3. The full pipe flow filling blanking device according to claim 1, wherein the feeding pipe is provided with an electric switch valve i, an electric flow control valve and an electromagnetic flow meter, the electric switch valve i is a switch type electric wear-resistant pipe clamp valve, and the electric flow control valve is a regulation type electric wear-resistant pipe clamp valve.

4. The full pipe flow filling blanking device of claim 1, wherein the water supply pipe is provided with an electric switch valve II.

5. The full pipe flow filling blanking device of claim 1, wherein the discharging pipe is provided with an electric switch valve III, and the electric switch valve III is an on-off type electric wear-resistant pipe clamp valve.

6. The full pipe flow filling blanking device of claim 1, wherein the number of the baffles is at least 4, and the inclined edge of the baffle forms an angle β =0.5 α with the centerline of the tapping pipe.