CN216630689U

CN216630689U - Air-jet type dosing machine

Info

Publication number: CN216630689U
Application number: CN202220039093.9U
Authority: CN
Inventors: 鲁培兴; 李安迎
Original assignee: Hunan Zhong Gong Mining Engineering Technology Co ltd
Current assignee: Hunan Zhong Gong Mining Engineering Technology Co ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-05-31
Anticipated expiration: 2032-01-07

Abstract

A gas-spraying type dosing machine comprises a dosing bucket and a cylinder, wherein the dosing bucket is hermetically installed at the bottom of the dosing bucket, an inlet is formed in the top of the dosing bucket, an outlet is formed in the bottom of the dosing bucket, a first check valve is installed on the outlet of the dosing bucket, and a medicine outlet of the first check valve is connected with a stirring barrel through a medicine pipe; be provided with in the import of constant volume fill with the import size assorted of constant volume fill, can seal the constant volume fill apron of import, the middle part of constant volume fill apron is equipped with the through-hole that link up the upper and lower side of constant volume fill apron, be fixed with the pipe with the through-hole intercommunication on the constant volume fill apron, the pipe is fixed and the export intercommunication through pipe joint and second check valve with pipe joint, the cylinder is installed in the medical kit outside, the tailpiece of the piston rod of cylinder and pipe joint fixed connection and with the coaxial laying of pipe, the piston rod of cylinder passes through the pipe and links with the constant volume fill apron. The utility model has simple structure, low cost, durability, stability and high medicament flow rate, and greatly improves the medicament dispersion effect.

Description

Air-jet type dosing machine

Technical Field

The utility model relates to an air-jet type dosing machine.

Background

The chemical adding machine is widely applied to the industries of mineral separation, sewage treatment and the like, is mainly used for controlling the chemical adding speed and metering, and mainly comprises a constant-pressure self-flow type chemical adding machine, a pumping type chemical adding machine and the like at present.

The constant-pressure gravity flow type generally has a constant-pressure tank, the bottom of which is provided with an electromagnetic valve, and metering is realized by controlling the opening time of the electromagnetic valve. The metering is not accurate in the defect and is greatly influenced by the fluidity of the medium; because the medicament is in a self-flowing type, the medicament which is easy to crystallize and agglomerate is easy to block, and the production is seriously influenced. In addition, this kind of medicine adding machine generally can only place the eminence, is unfavorable for daily operation, and easily makes dirty the environment.

While the pumping type mainly includes a diaphragm pump, a peristaltic pump, and the like. The metering of the diaphragm pump is greatly influenced by the fluidity of the medium, the back pressure, the position of a dosing point and the like, generally needs to be calibrated on site, is expensive and easy to damage, has high use cost, has larger volume with larger metering, and is more obvious for factories with larger dosing amount and more dosing points; the peristaltic pump is inaccurate in metering calibration, expensive and rarely used at present.

In addition, in the actual production process, the reagent is added, the metering is accurate, the dosing effect needs to be considered, the production is a continuous process, the reagent and ore pulp continuously flow into the stirring barrel and continuously flow out of the stirring barrel, the key is that the reagent cannot be fully dispersed and dissolved and mineralized in the stirring barrel, and the subsequent flotation effect is directly influenced. The various types of the medicament are various, and many of the medicaments are not water-soluble, so that the difficulty of dispersing and mineralizing the medicament is increased.

SUMMERY OF THE UTILITY MODEL

The utility model solves the defects of the prior art and provides the air-jet type dosing machine which has the advantages of simple structure, low manufacturing cost, durability, stability, high medicament flow rate and great improvement on medicament dispersion effect.

In order to achieve the purpose, the utility model firstly provides an air-jet type dosing machine which comprises a dosing box, a dosing hopper and a cylinder, wherein the dosing hopper is hermetically installed at the bottom of the dosing box, an inlet is formed in the top of the dosing hopper, an outlet is formed in the bottom of the dosing hopper, a first one-way valve is installed on the outlet of the dosing hopper, and a medicine outlet of the first one-way valve is connected with a stirring barrel through a medicine pipe;

a hopper cover plate which is matched with the hopper inlet in size and can seal the hopper inlet is arranged on the inlet of the hopper, a through hole which penetrates through the upper side and the lower side of the hopper cover plate is arranged in the middle of the hopper cover plate, a guide pipe which is communicated with the through hole is fixed on the hopper cover plate, the guide pipe is fixed with a guide pipe joint and is communicated with the outlet of the second one-way valve through the guide pipe joint,

the cylinder is installed outside the medical kit, the piston rod end of the cylinder is fixedly connected with the pipe joint and is coaxially arranged with the pipe, and the piston rod of the cylinder is linked with the quantitative hopper cover plate through the pipe.

In this embodiment, the inner diameter of the cylinder is larger than the inner diameter of the measuring hopper.

In this embodiment, the bottom of the medicine box is provided with a mounting seat capable of being matched with the quantitative hopper, a sealing ring is arranged between the mounting seat and the quantitative hopper, and the quantitative hopper is hermetically mounted in the mounting seat at the bottom of the medicine box, so that the outlet of the quantitative hopper is arranged outside the medicine box.

In this embodiment, the inlet of the measuring hopper is flush with the bottom of the medicine box.

In this embodiment, the inner cavity of the lower end of the quantitative hopper is of an inverted conical shape.

In this embodiment, be provided with the sealed pad that corresponds with the quantitative hopper export below the quantitative hopper apron, the quantitative hopper apron realizes sealed through sealed pad and the limit laminating of quantitative hopper export.

In this embodiment, still be equipped with the limiting plate in the medical kit, be equipped with on the limiting plate with pipe size assorted guiding hole, the pipe slides the cartridge and is in the guiding hole.

In this embodiment, a floating ball with a diameter larger than that of the outlet of the quantitative hopper is further placed in the quantitative hopper, and the density of the floating ball is smaller than that of the medicament.

In this embodiment, the hopper cover plate is provided.

Due to the adoption of the structure, the device has the following advantages:

1. the device adopts the quantitative hopper, the quantitative hopper is directly arranged at the bottom of the medicine box, the medicine inlet opening is directly arranged in the medicine box, the sealing cover is pressed by the cylinder to realize sealing, and the high-pressure gas forces the medicine to be sprayed out at high speed to finish medicine adding. Therefore, a metering pump is not needed, the high-pressure gas is used for expelling the medicament, and a non-piston and non-diaphragm form is adopted, so that the manufacturing cost is reduced, and the service life and the stability are greatly improved;

2. when the conventional air pressure of 0.5MPa is used as an air source, the conveying height reaches 50 meters, for a factory, the back pressure change generated by the height difference of several meters of each dosing point can be almost ignored, and the mounting position of a dosing machine is not influenced;

3. the volume of the quantitative hopper is permanently fixed, and the dosing speed can be accurately set only by controlling the frequency, so that the metering accuracy can be guaranteed without carrying out test calibration on site;

4. because the medicament is sprayed at a high speed and can violently collide with the ore pulp, the dispersing effect of the medicament can be greatly improved.

In conclusion, the device has the advantages of simple structure, low manufacturing cost, almost no abrasion, durability, stability, adoption of the existing air source on site and low operation cost. Meanwhile, the output pressure intensity is high, the flow rate of the medicament is high, the device is suitable for various medicaments with higher viscosity, the high-speed spraying effect can be obtained, the dispersing effect of the medicaments is greatly improved, the promotion of the flotation index is facilitated, and better economic value is created.

Drawings

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

In the figure, 1, a medicine box; 2. a measuring hopper; 3. a cover plate of the quantitative hopper; 4. a conduit; 5. a catheter adapter; 6. a limiting plate; 7. a cylinder frame; 8. a floating ball; 10. a first check valve; 11. a medicine outlet; 12. an air inlet; 13. a cylinder; 15. a second one-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, the utility model provides an air-jet type dosing machine, which comprises a medicine box 1, a quantitative hopper 2, a quantitative hopper cover plate 3, a conduit 4, a conduit joint 5, a limiting plate 6, a cylinder frame 7, a floating ball 8, a first one-way valve 10, a cylinder 13, a PLC control cabinet, an electromagnetic valve and the like;

the bottom of the medicine box 1 is provided with a mounting seat which can be matched with the quantitative hopper 2, the quantitative hopper 2 is mounted and fixed in the mounting seat at the bottom of the medicine box 1, and a sealing ring is arranged in the middle of the quantitative hopper 2, so that the quantitative hopper 2 and the bottom of the medicine box 1 form sealing. The top of the quantitative hopper 2 is provided with an inlet, the inner cavity of the lower end of the quantitative hopper is of an inverted cone shape, the bottom of the quantitative hopper is provided with an outlet, the outlet of the quantitative hopper 2 is in threaded connection with the inlet of the first one-way valve 10, and the medicine outlet 11 of the first one-way valve 10 is connected with a factory mixing tank through a medicine pipe.

A hopper cover plate 3 is arranged on an inlet of the hopper 2, and a sealing gasket is arranged below the hopper cover plate 3 and is attached to the edge of an outlet of the hopper 2 to realize sealing; a through hole is arranged in the middle of the quantitative hopper cover plate 3, a conduit 4 is fixed on the through hole of the quantitative hopper cover plate 3, the conduit 4 is communicated with the outlet of the second one-way valve 15 through a conduit joint 5, so that the outlet of the quantitative hopper 2 is communicated with the second one-way valve 15 through the quantitative hopper cover plate 3, the conduit 4 and the conduit joint 5,

the air cylinder 13 is arranged on the air cylinder frame 7, the air cylinder frame 7 is fixed on the medicine chest 1, an air inlet of the air cylinder 13 is connected with the first electromagnetic valve through an air pipe, an air inlet 12 of the second one-way valve 15 is connected with the second electromagnetic valve through an air pipe, and the first electromagnetic valve and the second electromagnetic valve are communicated with a high-pressure gas source through air pipes. When the cylinder 13 works, in order to prevent the air pressure in the measuring hopper 2 from reversely pushing the cylinder 13 to cause the measuring hopper cover plate 3 to be lifted, on one hand, the pressure of the high-pressure air in the cylinder 13 is maintained through the locking of the first electromagnetic valve, and on the other hand, the inner diameter of the cylinder 13 can be set to be larger than that of the measuring hopper 2, so that the thrust of the cylinder 13 is ensured to be larger than the reverse thrust of the measuring hopper cover plate 3.

The piston rod end of the cylinder 13 is fixedly connected with the conduit joint 5 and is arranged coaxially with the conduit 4. Still be equipped with limiting plate 6 in the medical kit 1, be equipped with on the limiting plate 6 with the guide hole of 4 size assorted of pipe, pipe 4 slides the cartridge and is in the guide hole, limiting plate 6 is used for injecing the swing of pipe 4, ensures to connect the hopper apron 3 of pipe 4 lower extreme and keeps directly over hopper 2.

A floating ball 8 with the diameter larger than the outlet of the quantitative hopper 2 is also arranged in the quantitative hopper 2, and the density of the floating ball 8 is smaller than that of the medicament.

The specific application is as follows: the air pipe is first connected to the cylinder 13 by a solenoid valve, while the other air pipe is connected to the second check valve 15 by a solenoid valve. In the initial state, the piston rod of the cylinder 13 is in a retreating state, so that the quantitative hopper cover plate 3 is also in an opening state, after a medicine box is filled with corresponding medicine, the medicine is filled in the quantitative hopper 2 instantly, at the moment, the floater 8 floats up to open the bottom outlet of the quantitative hopper 2, then the electromagnetic valve connected with the cylinder 13 controls high-pressure air to push out the piston rod of the cylinder 13, the electromagnetic valve connected with the conduit joint 5, the conduit 4 and the quantitative hopper cover plate 3 moves downwards until the piston rod is pressed on the quantitative hopper 2, because the sealing gasket is arranged below the quantitative hopper cover plate 3, a sealing cavity is formed together with the quantitative hopper 2, then the electromagnetic valve connected with the second one-way valve 15 is opened, high-pressure air enters the sealing cavity formed by the quantitative hopper 2 and the quantitative hopper cover plate 3, the pressure in the sealing cavity is rapidly increased, so that the medicine is forced to open the first one-way valve 10 connected with the bottom of the quantitative hopper 2, and ejected from the medicine tube to the stirring barrel at high speed. The pressure for spraying the medicament is forced to reach more than 0.5MPa, so that the medicament has high spraying speed and can form violent collision with the ore pulp in the stirring barrel, thereby splitting into a plurality of tiny medicament liquid microbeads and achieving the effect of full dispersion. Of course, a dispersing nozzle can be additionally arranged at the medicament ejection port, which is more beneficial to dispersing the medicament. Meanwhile, the floater 8 in the quantitative hopper 2 can be lowered along with the reduction of the liquid level of the medicine in the quantitative hopper 2, and when the floater 8 moves to the opening at the bottom under the guidance of the conical wall barrel at the lower end of the quantitative hopper 2, the opening can be rapidly blocked, so that the medicine in the quantitative hopper 2 is prevented from being sprayed out and a large amount of gas is prevented from being sprayed out. Then the electromagnetic valve connected with the second one-way valve 15 is closed, the high-pressure gas is cut off to enter the quantitative hopper 2, the electromagnetic valve connected with the cylinder is controlled again at the moment, the piston rod of the cylinder 13 is retracted and is connected with the quantitative hopper cover plate 3 to be lifted, the quantitative hopper 2 is instantly filled with the medicament, and the next circulation of dosing action is started. The maximum lifting displacement of the quantitative hopper cover plate 3 is smaller than the diameter of the floating ball 8, and if the diameter of the floating ball 8 is 20mm, the lifting displacement of the quantitative hopper cover plate 3 is controlled to be 12mm-15mm, so that the floating ball 8 can not run out of the quantitative hopper 2.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The air-jet type dosing machine is characterized by comprising a dosing bucket (2), a dosing bucket (1) and an air cylinder (13), wherein the dosing bucket (2) is hermetically installed at the bottom of the dosing bucket (1), an inlet is formed in the top of the dosing bucket (2), an outlet is formed in the bottom of the dosing bucket (2), a first check valve (10) is installed on the outlet of the dosing bucket (2), and a medicine outlet (11) of the first check valve (10) is connected with a stirring barrel through a medicine pipe;

a hopper cover plate (3) which is matched with the inlet of the hopper (2) in size and can seal the inlet of the hopper (2) is arranged at the inlet of the hopper (2), a through hole which is communicated with the upper side and the lower side of the hopper cover plate (3) is arranged in the middle of the hopper cover plate (3), a guide pipe (4) which is communicated with the through hole is fixed on the hopper cover plate (3), the guide pipe (4) is fixed with a guide pipe joint (5) and is communicated with the outlet of a second one-way valve (15) through the guide pipe joint (5),

the cylinder (13) is installed on the outer side of the medicine chest (1), the piston rod end of the cylinder (13) is fixedly connected with the guide pipe joint (5) and is coaxially arranged with the guide pipe (4), and the piston rod of the cylinder (13) is linked with the quantitative hopper cover plate (3) through the guide pipe (4).

2. The air-jet dosing machine as claimed in claim 1, characterized in that the internal diameter of the air cylinder (13) is greater than the internal diameter of the dosing hopper (2).

3. The air-spraying type dosing machine as claimed in claim 1, characterized in that the bottom of the medicine box (1) is provided with a mounting seat capable of being matched with the quantitative hopper (2), a sealing ring is arranged between the mounting seat and the quantitative hopper (2), and the quantitative hopper (2) is hermetically mounted in the mounting seat at the bottom of the medicine box (1).

4. Air-blast dosing machine according to claim 1, characterised in that the inlet of the dosing hopper (2) is flush with the bottom of the tank (1).

5. The air-blast type dosing machine as claimed in claim 1, wherein the inner cavity of the lower end of said dosing hopper (2) is of inverted conical shape.

6. The air-jet type dosing machine as claimed in claim 1, characterized in that a sealing gasket corresponding to the outlet of the dosing hopper (2) is arranged below the dosing hopper cover plate (3), and the dosing hopper cover plate (3) is attached to the edge of the outlet of the dosing hopper (2) through the sealing gasket to realize sealing.

7. The air-jet type dosing machine according to claim 1, characterized in that a limiting plate (6) is further arranged in the dosing box (1), a guiding hole matched with the size of the conduit (4) is arranged on the limiting plate (6), and the conduit (4) is inserted in the guiding hole in a sliding manner.

8. The air-jet type dosing machine as claimed in any one of claims 1 to 7, characterized in that a floating ball (8) with a diameter larger than the outlet of the dosing hopper (2) is further placed in the dosing hopper (2), and the density of the floating ball (8) is smaller than that of the medicament.

9. The air-jet dosing machine as claimed in claim 8, characterized in that the maximum lifting displacement of the hopper cover (3) is smaller than the diameter of the float ball (8).