Coal washing flotation dosing device

Abstract

The utility model discloses a coal washing flotation dosing device, which belongs to the technical field of coal washing processing, and comprises a mixing barrel, and a stirring combination is mounted at the top end of the mixing barrel; a coal washing flotation agent is stored in the chemical adding barrel, and the chemical adding barrel is fixedly connected with the mixing barrel through a plurality of connecting plates; the material storage box is detachably connected to the top end of the mixing barrel, a material pushing plate used for separating the space of the material storage box is arranged in an inner cavity of the material storage box, an electric push rod is embedded in the side face of the material storage box, and a moving part of the electric push rod is fixedly connected with the material pushing plate; the connecting ring is fixedly connected with the mixing barrel through a plurality of connecting blocks, the periphery of the connecting ring is connected with a plurality of spraying plates, and the plurality of spraying plates are communicated with a common pipe through a dosing pipe; the storage box is respectively communicated with the dosing barrel and the common pipe through two water pipes with electromagnetic valves, and the common pipe is communicated with two auxiliary pipes which are provided with electromagnetic valves and penetrate through the mixing barrel. According to the coal washing flotation dosing device, dosing is more convenient, and the completeness of discharging can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal washing processing, in particular to a coal washing flotation dosing device. Background Art

[0002] A coal washing plant is a processing plant that removes mineral impurities from raw coal. It can be divided into coking coal preparation plants and thermal coal preparation plants. There are many processes involved in a coal washing plant, including the flotation process of ore pulp. A dosing device is used to add flotation agents in this process. In order to ensure the effect of subsequent flotation of the ore pulp, a dosing device is required to fully mix the ore pulp and the flotation agent. However, when the existing dosing device is quantitatively adding drugs, it is greatly affected by the flow meter. Once it is damaged and the accuracy becomes low, it will affect the accuracy of the dosing and the convenience of operation.

[0003] After searching, the Chinese patent document (authorization announcement number CN220803803U) discloses a flotation dosing device for a coal washing plant, including a mixing barrel, a valve installed at the lower end of the mixing barrel, a feed pipe installed through one side of the upper end of the mixing barrel, and a motor installed on the other side of the upper end of the mixing barrel; a bracket is fixedly connected to the inner wall of the upper end of the mixing barrel, and a through pipe is provided on the inner wall of the bracket. The flotation dosing device for a coal washing plant improves the mixing effect of the ore pulp and the flotation agent, avoids affecting the use effect of the flotation agent, thereby facilitating the subsequent flotation operation of the ore pulp and improving the practicality of the device. When the dosing device quantitatively adds drugs, it is greatly affected by the flow meter. Once it is damaged and the accuracy becomes low, it will affect the accuracy of the dosing and the convenience of operation. Utility Model Content

[0004] The utility model aims to provide a coal washing flotation dosing device to solve the problems raised in the background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal washing flotation dosing device, comprising:

[0006] A mixing barrel, the top of which is provided with a stirring assembly;

[0007] The dosing barrel contains flotation agents for coal washing and is connected and fixed to the mixing barrel through multiple connecting plates;

[0008] A material storage box is detachably connected to the top of the mixing barrel, the inner cavity of the material storage box is provided with a push plate for dividing the material storage box space, and an electric push rod is embedded in the side of the material storage box, and the moving part of the electric push rod is connected and fixed to the push plate;

[0009] A connecting ring is connected and fixed to the mixing barrel through a plurality of connecting blocks, a plurality of spray plates are connected to the outer periphery of the connecting ring, and the plurality of spray plates are connected to a common pipe through a dosing pipe;

[0010] The storage box is connected to the dosing barrel and the common pipe through two water pipes with solenoid valves respectively. The common pipe is connected to two auxiliary pipes with solenoid valves that pass through the mixing barrel. A fan is installed on the top of one of the auxiliary pipes, and the other auxiliary pipe is connected to a feeding hopper for easy feeding.

[0011] As a preferred embodiment, the stirring combination comprises:

[0012] A rotary motor, mounted on the top of the mixing barrel;

[0013] A stirring rod is connected and fixed to the output shaft of the rotating motor through a connector, and the stirring rod also passes through a connecting ring;

[0014] A plurality of stirring blades are connected to the outer circumference of the stirring rod.

[0015] As a preferred embodiment, the side of the mixing barrel is connected to a liquid inlet pipe with a solenoid valve for introducing coal washing slurry, and the bottom of the mixing barrel is connected to a discharge pipe with a solenoid valve.

[0016] As a preferred embodiment, a plurality of dosing ports for dosing are provided at the bottom end of the spray plate, and the plurality of spray plates are arranged at an angle.

[0017] As a preferred embodiment, a sealing gasket is bonded to the outer periphery of the push plate, and a perspective window is embedded in the side of the storage box.

[0018] As a preferred embodiment, scale lines are provided on the side of the perspective window.

[0019] As a preferred embodiment, the side of the dosing barrel is connected with a feeding pipe, and the water pipe is connected with a flow meter.

[0020] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0021] Before using the coal washing flotation dosing device, the electric push rod is controlled to extend and retract according to the dosing amount in advance, the position of the push plate is changed, and the actual amount of medicine stored in the storage box is changed. When in use, the electromagnetic valve of the upper water pipe is opened to add materials. After the addition is completed, the upper electromagnetic valve is closed and the electromagnetic valve of the lower water pipe is opened to realize the discharge and dosing. Compared with the previous flow meter type dosing, this design is more convenient to operate and has higher accuracy.

[0022] The coal washing flotation dosing device, after dosing, if it is felt that the flotation agent in the spray plate and the common pipe is not completely discharged, the fan can be turned on to blow the material, or the slurry can be introduced through the feeding hopper to ensure the complete discharge of the flotation agent that is not completely discharged;

[0023] In the coal washing flotation dosing device, the rotating motor of the stirring assembly drives the stirring rod to rotate, and then drives the stirring blade to rotate, so as to stir the ore pulp and the flotation agent evenly;

[0024] The coal washing flotation dosing device is not only more convenient for dosing, but also can ensure the completeness of material discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a cross-sectional view of the mixing barrel of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the electric push rod of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the common pipe and the auxiliary pipe of the utility model.

[0030] Description of reference numerals:

[0031] In the figure: 1. Mixing barrel; 2. Mixing assembly; 3. Dosing barrel; 4. Connecting plate; 5. Storage box; 6. Pushing plate; 7. Electric push rod; 8. Connecting ring; 9. Spraying plate; 10. Common pipe; 11. Water pipe; 12. Auxiliary pipe; 13. Fan; 14. Feeding hopper; 15. Liquid inlet pipe; 16. Discharge pipe; 17. Sealing pad; 18. Feeding pipe;

[0032] 21. Rotating motor; 22. Stirring rod; 23. Stirring blade. DETAILED DESCRIPTION

[0033] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0034] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0035] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0036] See also Figures 1 to 4 As shown, a coal washing flotation dosing device, this embodiment includes:

[0037] A mixing barrel 1, the lower half of which is arranged in a funnel shape, and a feeding pipe 18 is connected to the side of the dosing barrel 3;

[0038] The dosing barrel 3 stores a flotation agent for coal washing and is connected and fixed to the mixing barrel 1 through a plurality of connecting plates 4;

[0039] The storage box 5 is detachably connected to the top of the mixing barrel 1. The inner cavity of the storage box 5 is provided with a push plate 6 for separating the space of the storage box 5. An electric push rod 7 is embedded in the side of the storage box 5. The moving part of the electric push rod 7 is connected and fixed to the push plate 6. The outer periphery of the push plate 6 is bonded with a sealing gasket 17 to improve the sealing of the separation. A perspective window is embedded in the side of the storage box 5 to facilitate accurate understanding of the inventory. The side of the perspective window is provided with a scale line. According to the dosage in advance, the electric push rod 7 is controlled to be extended and retracted, the position of the push plate 6 is changed, and the actual storage amount of the storage box 5 is changed;

[0040] The connecting ring 8 is connected and fixed to the mixing barrel 1 through multiple connecting blocks. The outer periphery of the connecting ring 8 is connected with multiple spray plates 9. The bottom end of the spray plate 9 is provided with multiple dosing ports for dosing. The multiple spray plates 9 are tilted to facilitate the discharge of medicine from the dosing ports. The multiple spray plates 9 are connected to a common pipe 10 through a dosing pipe. The storage box 5 is connected to the dosing barrel 3 and the common pipe 10 respectively through two water pipes 11 with solenoid valves. The water pipe 11 is connected to a flow meter. When in use, the solenoid valve of the upper water pipe 11 is opened to add material. After the addition is completed, the upper solenoid valve is closed and the solenoid valve of the lower water pipe 11 is opened to realize the discharge of material and dosing. The flow meter can also measure the amount of medicine discharged, so as to understand the accuracy of the inventory in the medicine storage box 5.

[0041] In order to improve the completeness of material feeding, the common pipe 10 is connected with two auxiliary pipes 12 with solenoid valves penetrating the mixing barrel 1, a fan 13 is installed at the top of one of the auxiliary pipes 12, and the other auxiliary pipe 12 is connected with a feeding hopper 14 for easy feeding. After adding the agent, if it is felt that the flotation agent in the spray plate 9 and the common pipe 10 is not completely fed, the fan 13 can be turned on for blowing, or the slurry can be introduced through the feeding hopper 14 to ensure the completeness of the flotation agent that is not completely fed.

[0042] A stirring assembly 2 is installed at the top of the mixing barrel 1, and the stirring assembly 2 includes:

[0043] A rotating motor 21 is installed on the top of the mixing barrel 1;

[0044] The stirring rod 22 is connected and fixed to the output shaft of the rotating motor 21 through a connector, and the stirring rod 22 also passes through the connecting ring 8;

[0045] A plurality of stirring blades 23 are connected to the outer periphery of the stirring rod 22. After the material is discharged, the rotary motor 21 is controlled to drive the stirring rod 22 to rotate, thereby driving the stirring blades 23 to rotate, so as to mix the ore pulp and the flotation agent, and finally open the solenoid valve of the discharge pipe 16 to discharge the material.

[0046] The side of the mixing barrel 1 is connected to a liquid inlet pipe 15 with a solenoid valve for introducing coal washing slurry, and the bottom of the mixing barrel 1 is connected to a discharge pipe 16 with a solenoid valve.

[0047] The electric push rod 7, the fan 13, the solenoid valve, and the rotating motor 21 are all conventional instruments. Their working principles, sizes, and models are irrelevant to the problems solved by the present application, so they will not be described in detail. The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0048] How it works

[0049] The coal washing flotation dosing device introduces slurry into the mixing barrel 1 in advance through the feed pipe 15, controls the electric push rod 7 to extend and retract according to the dosing amount in advance, changes the position of the push plate 6, and changes the actual amount of medicine stored in the storage box 5. When in use, open the electromagnetic valve of the upper water pipe 11 to add materials. After the addition is completed, close the upper electromagnetic valve and open the electromagnetic valve of the lower water pipe 11 to realize the discharge and dosing. After the dosing, if it is felt that the flotation agent in the spray plate 9 and the common pipe 10 is not completely discharged, the fan 13 can be turned on for blowing, or the slurry can be introduced through the feeding hopper 14 to ensure the complete discharge of the flotation agent that is not completely discharged.

[0050] After the material is discharged, the rotary motor 21 is controlled to drive the stirring rod 22 to rotate, and then the stirring blade 23 is driven to rotate, so as to mix the ore pulp and the flotation agent, and finally the solenoid valve of the discharge pipe 16 is opened to discharge the material.

[0051] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal washing flotation dosing device, characterized in that: include: A mixing barrel (1), wherein a stirring assembly (2) is installed at the top of the mixing barrel (1); The dosing barrel (3) stores a flotation agent for coal washing and is connected and fixed to the mixing barrel (1) via a plurality of connecting plates (4); A material storage box (5) is detachably connected to the top of the mixing barrel (1); the inner cavity of the material storage box (5) is provided with a push plate (6) for dividing the space of the material storage box (5); an electric push rod (7) is embedded in the side of the material storage box (5); and the moving part of the electric push rod (7) is connected and fixed to the push plate (6); A connecting ring (8) is connected and fixed to the mixing barrel (1) via a plurality of connecting blocks, a plurality of spray plates (9) are connected to the outer periphery of the connecting ring (8), and the plurality of spray plates (9) are connected to a common pipe (10) via a dosing pipe; The material storage box (5) is connected to the dosing barrel (3) and the common pipe (10) respectively through two water pipes (11) with solenoid valves. The common pipe (10) is connected to two auxiliary pipes (12) with solenoid valves that penetrate the mixing barrel (1). A fan (13) is installed at the top of one of the auxiliary pipes (12), and the other auxiliary pipe (12) is connected to a feeding hopper (14) for convenient feeding.

2. A coal washing flotation dosing device according to claim 1, characterized in that: The stirring assembly (2) comprises: A rotating motor (21) is mounted on the top of the mixing barrel (1); A stirring rod (22) is connected and fixed to the output shaft of the rotating motor (21) through a connector, and the stirring rod (22) also passes through the connecting ring (8); A plurality of stirring blades (23) are connected to the outer periphery of the stirring rod (22).

3. A coal washing flotation dosing device according to claim 2, characterized in that: The side of the mixing barrel (1) is connected to a liquid inlet pipe (15) with a solenoid valve for introducing coal washing slurry, and the bottom of the mixing barrel (1) is connected to a discharge pipe (16) with a solenoid valve.

4. A coal washing flotation dosing device according to claim 1, characterized in that: A plurality of drug adding ports for adding drugs are provided at the bottom end of the spray plate (9), and the plurality of spray plates (9) are arranged at an angle.

5. A coal washing flotation dosing device according to claim 1, characterized in that: A sealing gasket (17) is bonded to the outer periphery of the push plate (6), and a perspective window is embedded in the side of the material storage box (5).

6. A coal washing flotation dosing device according to claim 5, characterized in that: The side of the perspective window is provided with scale lines.

7. A coal washing flotation dosing device according to claim 1, characterized in that: The side of the medicine adding barrel (3) is connected to a feeding pipe (18), and the water passing pipe (11) is connected to a flow meter.

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