CN216736506U

CN216736506U - Pneumatic conveying equipment for high-water-content stone powder

Info

Publication number: CN216736506U
Application number: CN202123234624.4U
Authority: CN
Inventors: 卢书发; 夏明�; 方鹏; 闫兴成; 杨小胜
Original assignee: Hefei Found Technology Co ltd
Current assignee: Hefei Found Technology Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-06-14
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a pneumatic conveying device for high-water-content stone powder, which comprises a pump body, wherein the upper end of the pump body is provided with a feed inlet and an exhaust outlet, the lower end of the pump body is communicated with an air inlet and a discharge outlet, a gasification rod is arranged in the pump body, and the gasification rod is communicated with the air inlet; install broken stick in the pump body, broken stick is equipped with one at least, broken stick include with pump body fixed connection's flange, the inboard fixedly connected with bracing piece of flange, be equipped with the rake nail on the bracing piece, the rake nail is equipped with a plurality ofly and evenly arranges on the bracing piece, this application is through setting up broken stick to broken stick is by supreme three-layer down in the pump body, and the broken stick of first layer breaks into the fritter with the accumulational mountain flour in lower part, and the fritter breaks up into the fritter, continues to rise along with the air current, then further smashes the dispersion through the broken stick of second floor, third layer, and then improves the efficiency of smashing, is favorable to the homogeneous mixing of material gas.

Description

Pneumatic conveying equipment for high-water-content stone powder

Technical Field

The utility model relates to an air conveying technical field specifically is an air conveying equipment for high moisture content mountain flour.

Background

Generally, the comprehensive utilization of mine tailings is realized by crushing and screening waste tailings into aggregates with different particle grades, and processing some waste tailings into machine-made sand. Should environmental protection require the factory for avoiding the raise dust, need watering the car regularly and sprinkle water, fog gun machine spraying dust fall etc. factor influence such as overcast and rainy weather in addition leads to waiting to process the ore moisture content on the high side. The water content of the stone powder generated during crushing, screening and machine-made sand production is higher (less than or equal to 8%).

The original processing mode is as follows: the mountain flour is collected and then returned to the belt conveyor to enter the next procedure, but the mountain flour is easy to adhere to the surface of the belt conveyor and then easily and naturally falls off due to reasons of moisture diffusion, mechanical vibration and the like, so that a lot of similar soil blocks are accumulated below the belt conveyor and fall into the belt conveyor to cause secondary dust raising, and the new environment-friendly requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic conveyor for high moisture content mountain flour to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pneumatic conveying device for high-water-content stone powder comprises a pump body, wherein a feeding hole and an exhaust hole are formed in the upper end of the pump body, the lower end of the pump body is communicated with an air inlet and a discharge hole, a gasification rod is arranged in the pump body, and the gasification rod is communicated with the air inlet;

install broken stick in the pump body, broken stick is equipped with one at least, broken stick include with pump body fixed connection's flange, the inboard fixedly connected with bracing piece of flange, be equipped with the rake nail on the bracing piece, the rake nail is equipped with a plurality ofly and evenly arranges on the bracing piece.

As a further aspect of the present invention: the pneumatic feeding valve is installed on the feeding hole, and the pneumatic exhaust valve is installed on the exhaust port.

As a further aspect of the present invention: the pneumatic conveying valve is arranged on the air inlet, and the pneumatic discharging valve is arranged on the discharging port.

As a further aspect of the present invention: the top pressure pipe is installed on the upper portion of the pump body, the pneumatic blow-assisting pipe is arranged on the pump body, the pneumatic blow-assisting valve is installed on the pneumatic blow-assisting pipe, the top pressure pipe and the pneumatic blow-assisting pipe are connected with the air inlet, and the top pressure pipe, the gasification rod and the pneumatic blow-assisting pipe are connected to the rear end of the pneumatic conveying valve.

As a further aspect of the present invention: the gasification rod is wrapped with hydrophobic breathable cloth.

As a further aspect of the present invention: four rows of the braks are arranged on the outer wall of the support rod along the circumferential direction of the support rod, the four rows of the braks are arranged at intervals of 90 degrees, the adjacent intervals of the braks are not less than 100mm, and the length of the braks is 35-40 mm.

As a further aspect of the present invention: broken stick is equipped with the three-layer by supreme down in the pump body, the three-layer broken stick all is located gasification stick top, the first layer the harrow nail on the broken stick is level, vertical arranging, second floor, third layer harrow nail on the broken stick is 45 contained angles with the level and arranges.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the device, the crushing rods are arranged, the three layers of crushing rods are arranged in the pump body from bottom to top, the crushing rods on the first layer break stone powder and lumps accumulated on the lower portion into small pieces, the small pieces continuously rise along with airflow, and then the small pieces are further broken and dispersed through the crushing rods on the second layer and the third layer, so that the breaking efficiency is improved, and the uniform mixing of material gas is facilitated;

2. the gasification rod is arranged, and the high-hydrophobicity breathable cloth is wrapped on the gasification rod, so that the functions of no material falling and no material sticking can be achieved;

3. this application carries out the bypass pressurization through setting up pneumatic blow-assisted valve, because its unit weight of high moisture content mountain flour is greater than dry mountain flour, fluidization effect in the pump body is also less than dry mountain flour, during the transport, the velocity of motion in the conveying pipeline will be less than air velocity, both velocity differences are big more easy to take place stifled pipe, after pneumatic bleeder valve opened the mountain flour and is full of the pipeline, pneumatic blow-assisted valve is opened, directly supply compressed gas from the conveying pipeline, play the effect that reduces the pipeline material gas mixture ratio, secondary fluidization pressurization mountain flour, avoid the pipeline to block up.

Drawings

FIG. 1 is a front view of the present embodiment;

FIG. 2 is a top view of the present embodiment;

FIG. 3 is a schematic view of a first layer of breaker bars according to this embodiment;

FIG. 4 is a schematic structural view of the second and third crushing rods of this embodiment;

in the figure: 1-pneumatic exhaust valve, 2-pneumatic feed valve, 3-top pressurizing pipe, 4-crushing rod, 5-gasification rod, 6-pneumatic conveying valve, 7-pneumatic discharge valve, 8-pump body, 9-pneumatic blow-assisted valve, 10-exhaust port, 11-feed port, 12-air inlet, 13-discharge port, 14-connecting flange, 15-support rod and 16-harrow nail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in the embodiment of the present invention, a pneumatic conveying apparatus for high water content stone powder comprises a pump body 8, a feed inlet 11 and an exhaust outlet 10 are arranged at the upper end of the pump body 8, a pneumatic feed valve 2 is arranged on the feed inlet 11, a pneumatic exhaust valve 1 is arranged on the exhaust outlet 10, a pneumatic conveying valve 6 is arranged on the air inlet 12, a pneumatic discharge valve 7 is arranged on the discharge outlet 13, the lower end of the pump body 8 is communicated with an air inlet 12 and a discharge outlet 13, a gasification rod 5 is arranged in the pump body 8, the gasification rod 5 is communicated with the air inlet 12, a top pressure tube 3 is arranged on the upper portion of the pump body 8, a pneumatic blow-assisting tube is arranged on the pump body 8, a pneumatic blow-assisting valve 9 is arranged on the pneumatic blow-assisting tube, the top pressure tube 3 and the pneumatic blow-assisting tube are connected with the air inlet 12, the top pressure tube 3, the gasification rod 5 and the pneumatic blow-assisting tube are all connected to the rear end of the pneumatic conveying valve 6, the gasification rod is arranged in the pump body, the gasification tube is wrapped by the air permeable cloth with strong hydrophobicity, and the function of no material falling and no material sticking is achieved. When feeding, the stone dust falls in the pump due to gravity and is easy to be bonded together to form a large lump. The large blocks are broken up primarily by the inflation and pressurization of the gasification rod, and the material gas tends to be mixed uniformly after the large blocks are continuously turned over and broken up (mainly the breaking rod). The high water content stone powder is easy to crust on the four walls and is not easy to fall off naturally. The gasified and overturned stone powder continuously impacts and rubs the wall of the pump body in the pump body to completely wash and fall off the bonded stone powder on the inner wall of the pump body.

Install broken stick 4 in the pump body 8, broken stick 4 is equipped with one at least, broken stick 4 includes the flange 14 with 8 fixed connection of the pump body, flange 14 inboard fixedly connected with bracing piece 15, be equipped with the rake nail 16 on the bracing piece 15, the rake nail is equipped with a plurality ofly and evenly arranges on bracing piece 15, the rake nail 16 is equipped with four rows along bracing piece 15 circumferencial direction on the bracing piece 15 outer wall, four rows of rake nail 16 are separated by 90 and are arranged, the adjacent interval of rake nail 16 is not less than 100mm, the length of rake nail is 35-40mm, broken stick 4 is equipped with the three-layer by supreme down in the pump body 8, three-layer broken stick 4 all is located gasification stick 5 top, the rake nail 16 on the broken stick 4 of first layer is the level, vertical arrangement, the second layer, the rake nail 16 on the broken stick 4 of third layer is 45 contained angles with the level and arranges. In this embodiment, the clumps or lumps impinging on the spikes 16 may be broken up by the spikes 16. During installation, the first layer of crushing rods 4 is close to the gasification rods 5 from bottom to top, the harrow nails are installed up and down and left and right, as shown in fig. 3, stone powder accumulated on the lower part is large in agglomerate, large in quantity and relatively heavy in weight, and after the gasified stone powder is scattered by the first layer of crushing rods, the agglomerate is scattered into small blocks which continuously rise to the second layer of crushing rods along with airflow; the second layer of crushing rod brazes are installed at an included angle of 45 degrees with the horizontal plane, as shown in fig. 4, the volume of the stone powder lumps is small, the weight is relatively light, the second layer of crushing rod brazes rise rapidly along with the airflow, the brazes are installed at an included angle of 45 degrees with the horizontal plane in order to enlarge the contact probability of the crushing rod brazes, and after the second time of scattering, the second layer of crushing rod brazes along with the airflow to rise to the third layer of crushing rod. And then the material gas moves downwards from the top to form the material gas churning, the material gas churning speed in the pump body is faster and faster along with the increase of the gas amount in the pump body, and the material gas mixing tends to be uniform when the pressure is close to 0.3 MPa. At the moment, the fluidization effect of the stone powder with high water content is achieved, and the requirement of pneumatic transmission of pipelines is met.

The bin type pneumatic conveying equipment adopts intermittent conveying, and other pneumatic valves are all in a closed state except that the pneumatic exhaust valve 1 is opened in a standby state.

When the pneumatic conveying is started, the pneumatic feeding valve 2 is opened, the feeding starts to reach a set material level, the pneumatic feeding valve 2 is closed, the pneumatic exhaust valve 1 is closed, the pneumatic conveying valve 6 is opened, a compressed air source (0.6MPa) enters the pump body through the top pressurizing pipe 3 and the gasification rod 5, static stone powder in the pump body is turned over and collides with the crushing rod 4, the collision is more and more intense along with the continuous rising of the pressure in the pump body, when the pressure reaches 0.3MPa, the material and the gas are mixed to be in a uniform state, the pneumatic discharging valve 7 is opened, the stone powder and the compressed gas enter a conveying pipeline, the conveying starts, after a certain delay, the pneumatic blowing-assisted valve 9 is opened, and the conveying pipeline is directly blown by a bypass until the pressure in the pump is reduced to a set air pressure. And closing the pneumatic blowing-assisting valve 9, the pneumatic conveying valve 6 and the pneumatic discharging valve 7 in sequence, finishing the conveying, and waiting for the next conveying.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The pneumatic conveying equipment for the high-water-content stone powder is characterized by comprising a pump body (8), wherein a feeding hole (11) and an exhaust hole (10) are formed in the upper end of the pump body (8), the lower end of the pump body (8) is communicated with an air inlet (12) and a discharge hole (13), a gasification rod (5) is installed in the pump body (8), and the gasification rod (5) is communicated with the air inlet (12);

install broken stick (4) in the pump body (8), broken stick (4) are equipped with one at least, broken stick (4) include with pump body (8) fixed connection's flange (14), flange (14) inboard fixedly connected with bracing piece (15), be equipped with on bracing piece (15) rake nail (16), the rake nail is equipped with a plurality ofly and evenly arranges on bracing piece (15).

2. The pneumatic conveying equipment for high-moisture-content stone powder as claimed in claim 1, wherein a pneumatic feeding valve (2) is installed on the feeding port (11), and a pneumatic exhaust valve (1) is installed on the exhaust port (10).

3. The pneumatic conveying equipment for high-moisture-content stone powder as claimed in claim 1, wherein a pneumatic conveying valve (6) is arranged on the air inlet (12), and a pneumatic discharging valve (7) is arranged on the discharging port (13).

4. The pneumatic conveying equipment for the stone powder with high water content according to claim 3, wherein a top pressurizing pipe (3) is installed at the upper part of the pump body (8), a pneumatic blow-assisting pipe is arranged on the pump body (8), a pneumatic blow-assisting valve (9) is installed on the pneumatic blow-assisting pipe, the top pressurizing pipe (3) and the pneumatic blow-assisting pipe are connected with the air inlet (12), and the top pressurizing pipe (3), the gasification rod (5) and the pneumatic blow-assisting pipe are all connected to the rear end of the pneumatic conveying valve (6).

5. The pneumatic conveying equipment for the high-water-content stone powder as claimed in claim 1, wherein the gasification rod (5) is wrapped with hydrophobic breathable cloth.

6. The pneumatic conveying equipment for the high-moisture-content stone powder as claimed in claim 1, wherein the braks (16) are arranged in four rows on the outer wall of the support rod (15) along the circumferential direction of the support rod (15), the four rows of braks (16) are arranged at intervals of (90) ° and the braks (16) are adjacently spaced at intervals of not less than 100mm, and the length of the braks (16) is 35-40 mm.

7. The pneumatic conveying equipment for the high-water-content stone powder as claimed in claim 1, wherein the crushing rod (4) is provided with three layers from bottom to top in the pump body (8), the three layers of crushing rods (4) are all positioned above the gasification rod (5), the rake nails (16) on the first layer of crushing rod (4) are horizontally and vertically arranged, and the rake nails (16) on the second layer of crushing rod and the third layer of crushing rod (4) are arranged at an included angle of 45 degrees with the horizontal plane.